/* ============================================
   BeTech Games - Estilos Principales
   ✨ Diseño amigable para niños de primaria ✨
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800&family=Fredoka+One&display=swap');

:root {
    /* Paleta BeTech - Colores vibrantes y amigables */
    --primary-color: #00D4AA;
    --primary-dark: #00B894;
    --primary-light: #E8FFF8;
    --primary-glow: rgba(0, 212, 170, 0.4);
    
    --secondary-color: #FFDD59;
    --secondary-dark: #FFCA28;
    --secondary-light: #FFF9E6;
    
    --accent-purple: #A29BFE;
    --accent-pink: #FF9FF3;
    --accent-orange: #FF9F43;
    --accent-cyan: #48DBFB;
    
    --success-color: #00D26A;
    --danger-color: #FF6B6B;
    --warning-color: #FFDD59;
    
    --dark-color: #2D3436;
    --text-color: #2D3436;
    --text-muted: #636E72;
    --light-color: #F8F9FA;
    
    --background-color: #FFFFFF;
    --card-background: #FFFFFF;
    --background-gradient: linear-gradient(135deg, #E8FFF8 0%, #FFF9E6 50%, #F0E6FF 100%);
    
    --board-cell: linear-gradient(145deg, #FFFFFF 0%, #F0FDFA 100%);
    --board-border: #B2F5EA;
    --robot-color: #00D4AA;
    
    --ball-red: #FF6B6B;
    --ball-blue: #54A0FF;
    --ball-green: #00D26A;
    --ball-black: #2D3436;
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 0 30px rgba(0, 212, 170, 0.3);
    
    --border-radius-sm: 12px;
    --border-radius-md: 20px;
    --border-radius-lg: 28px;
    --border-radius-xl: 36px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Nunito', 'Segoe UI', sans-serif;
    background: var(--background-gradient);
    color: var(--text-color);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Decoraciones de fondo animadas */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(0, 212, 170, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 90% 80%, rgba(255, 221, 89, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(162, 155, 254, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

/* Decoraciones flotantes */
.floating-decoration {
    position: fixed;
    pointer-events: none;
    z-index: -1;
    opacity: 0.1;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

/* ============================================
   Screens
   ============================================ */

.screen {
    display: none;
    min-height: 100vh;
    background: var(--background-gradient);
    animation: fadeIn 0.4s ease;
}

.screen.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   Login Screen
   ============================================ */

#login-screen {
    display: none;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #E8FFF8 0%, #FFFFFF 30%, #FFF9E6 60%, #F0E6FF 100%);
    position: relative;
    overflow: hidden;
}

#login-screen::before {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
    top: -100px;
    right: -100px;
    animation: pulse-slow 4s ease-in-out infinite;
}

#login-screen::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255, 221, 89, 0.3) 0%, transparent 70%);
    bottom: -50px;
    left: -50px;
    animation: pulse-slow 4s ease-in-out infinite 2s;
}

@keyframes pulse-slow {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

#login-screen.active {
    display: flex;
}

.login-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    padding: 3rem;
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-lg), 0 0 0 1px rgba(0, 212, 170, 0.1);
    width: 100%;
    max-width: 420px;
    text-align: center;
    position: relative;
    z-index: 1;
    border: 2px solid rgba(0, 212, 170, 0.1);
}

.logo {
    margin-bottom: 2rem;
}

.logo i {
    font-size: 4.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    display: inline-block;
    animation: bounce-gentle 2s ease-in-out infinite;
    filter: drop-shadow(0 4px 8px rgba(0, 212, 170, 0.3));
}

@keyframes bounce-gentle {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.logo h1 {
    font-family: 'Fredoka One', 'Nunito', sans-serif;
    font-size: 2.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 1px;
}

.form-group {
    margin-bottom: 1.2rem;
}

.form-group input {
    width: 100%;
    padding: 1.1rem 1.2rem;
    border: 2px solid #E8F5F2;
    border-radius: var(--border-radius-md);
    background: linear-gradient(145deg, #FFFFFF 0%, #F8FFFE 100%);
    color: var(--text-color);
    font-size: 1rem;
    font-family: 'Nunito', sans-serif;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-group input::placeholder {
    color: #A0AEC0;
    font-weight: 500;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    background: white;
    box-shadow: 0 0 0 4px var(--primary-glow), var(--shadow-md);
    transform: translateY(-2px);
}

.error-message {
    color: var(--danger-color);
    margin-top: 1rem;
    font-size: 0.9rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.demo-divider {
    display: flex;
    align-items: center;
    margin: 2rem 0;
    color: var(--text-muted);
}

.demo-divider::before,
.demo-divider::after {
    content: '';
    flex: 1;
    height: 2px;
    background: linear-gradient(90deg, transparent, #E8F5F2, transparent);
    border-radius: 2px;
}

.demo-divider span {
    padding: 0 1rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted);
}

.btn-demo {
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-orange));
    color: var(--dark-color);
    width: 100%;
    font-size: 1.1rem;
    padding: 1.1rem;
    font-weight: 800;
    border-radius: var(--border-radius-md);
    position: relative;
    overflow: hidden;
}

.btn-demo::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.5s;
}

.btn-demo:hover::before {
    left: 100%;
}

.btn-demo:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 10px 30px rgba(255, 159, 67, 0.4);
}

/* Demo Users Grid */
.demo-users-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.6rem;
    margin-top: 0.5rem;
}

/* Last row centered for 5 items (2 items in last row) */
.demo-users-grid .demo-user-btn:nth-child(4) {
    grid-column: 1 / 2;
    justify-self: end;
    width: 90%;
}

.demo-users-grid .demo-user-btn:nth-child(5) {
    grid-column: 2 / 4;
    justify-self: start;
    width: 60%;
}

.demo-user-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.8rem 0.4rem;
    background: linear-gradient(145deg, #F8F9FA, #FFFFFF);
    border: 2px solid #E2E8F0;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
}

.demo-user-btn:hover {
    border-color: var(--primary-color);
    background: var(--primary-light);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.demo-user-btn .demo-avatar {
    font-size: 1.8rem;
    margin-bottom: 0.2rem;
}

.demo-user-btn .demo-name {
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--text-color);
}

.demo-user-btn .demo-role {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 0.15rem;
}

.demo-user-btn[data-user="profesor"] {
    border-color: var(--accent-purple);
}
.demo-user-btn[data-user="profesor"]:hover {
    background: #F0E6FF;
}

.demo-user-btn[data-user="admin"] {
    border-color: var(--accent-orange);
}
.demo-user-btn[data-user="admin"]:hover {
    background: #FFF4E6;
}

/* ============================================
   Teacher Dashboard
   ============================================ */

.dashboard-content {
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.welcome-card {
    flex: 1;
    min-width: 250px;
}

.welcome-card h2 {
    font-size: 1.8rem;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.welcome-card p {
    color: var(--text-muted);
    font-size: 1rem;
}

.quick-stats {
    display: flex;
    gap: 1rem;
}

.stat-card {
    background: white;
    padding: 1.2rem 2rem;
    border-radius: var(--border-radius-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 2px solid #E2E8F0;
}

.stat-card .stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
}

.stat-card .stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
}

.dashboard-card {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    border: 2px solid #E2E8F0;
}

.dashboard-card h3 {
    font-size: 1.1rem;
    color: var(--text-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.dashboard-card h3 i {
    color: var(--primary-color);
}

.classes-list {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.class-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: #F8F9FA;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all 0.2s;
}

.class-item:hover {
    background: var(--primary-light);
}

.class-info h4 {
    margin: 0;
    font-size: 1rem;
}

.class-info span {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.activity-list {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.activity-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    padding: 0.8rem;
    background: #F8F9FA;
    border-radius: var(--border-radius-sm);
}

.activity-icon {
    font-size: 1.5rem;
}

.activity-info {
    flex: 1;
}

.activity-info strong {
    color: var(--text-color);
}

.activity-time {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.2rem;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.tool-btn-large {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem 1rem;
    background: linear-gradient(145deg, #F8F9FA, white);
    border: 2px solid #E2E8F0;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all 0.3s;
}

.tool-btn-large:hover {
    border-color: var(--primary-color);
    background: var(--primary-light);
    transform: translateY(-2px);
}

.tool-btn-large i {
    font-size: 1.8rem;
    color: var(--primary-color);
}

.tool-btn-large span {
    font-weight: 600;
    color: var(--text-color);
}

/* ============================================
   Admin Dashboard
   ============================================ */

.admin-header {
    background: linear-gradient(135deg, #2D3436, #636E72) !important;
}

.admin-content {
    display: flex;
    height: calc(100vh - 70px);
}

.admin-sidebar {
    width: 240px;
    background: #2D3436;
    padding: 1rem 0;
}

.admin-nav {
    display: flex;
    flex-direction: column;
}

.admin-nav-btn {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem 1.5rem;
    background: none;
    border: none;
    color: #B2BEC3;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s;
    text-align: left;
}

.admin-nav-btn:hover {
    background: rgba(255,255,255,0.1);
    color: white;
}

.admin-nav-btn.active {
    background: var(--primary-color);
    color: white;
}

.admin-nav-btn i {
    width: 20px;
}

.admin-main {
    flex: 1;
    padding: 2rem;
    background: #F8F9FA;
    overflow-y: auto;
}

.admin-section {
    display: none;
}

.admin-section.active {
    display: block;
}

.admin-section h2 {
    color: var(--text-color);
    margin-bottom: 1.5rem;
}

.admin-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.admin-stat-card {
    background: white;
    border-radius: var(--border-radius-md);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow-sm);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.stat-icon.schools { background: linear-gradient(135deg, #A29BFE, #6C5CE7); }
.stat-icon.teachers { background: linear-gradient(135deg, #00D4AA, #00B894); }
.stat-icon.students { background: linear-gradient(135deg, #54A0FF, #2E86DE); }
.stat-icon.games { background: linear-gradient(135deg, #FFDD59, #FF9F43); }

.stat-info .stat-number {
    display: block;
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text-color);
}

.stat-info .stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.admin-panels {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
}

.admin-panel {
    background: white;
    border-radius: var(--border-radius-md);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.admin-panel h3 {
    margin-bottom: 1rem;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.admin-panel h3 i {
    color: var(--primary-color);
}

/* Bar Chart */
.bar-chart {
    display: flex;
    align-items: flex-end;
    justify-content: space-around;
    height: 150px;
    padding: 1rem 0;
}

.bar-chart .bar {
    width: 30px;
    background: linear-gradient(180deg, var(--primary-color), var(--primary-dark));
    border-radius: 5px 5px 0 0;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: 0.3rem;
    transition: height 0.3s;
}

.bar-chart .bar span {
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
}

/* Top List */
.top-list {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.top-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.8rem;
    background: #F8F9FA;
    border-radius: var(--border-radius-sm);
}

.top-item .rank {
    width: 30px;
    height: 30px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.top-item .name {
    flex: 1;
    font-weight: 600;
}

.top-item .score {
    color: var(--primary-color);
    font-weight: 700;
}

/* Section Header */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.section-filters {
    display: flex;
    gap: 1rem;
}

.filter-select {
    padding: 0.6rem 1rem;
    border: 1px solid #E2E8F0;
    border-radius: var(--border-radius-sm);
    background: white;
    font-size: 0.9rem;
}

/* Data Table */
.data-table {
    background: white;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.data-table table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #E2E8F0;
}

.data-table th {
    background: #F8F9FA;
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.85rem;
    text-transform: uppercase;
}

.data-table td {
    color: var(--text-color);
}

.progress-mini {
    width: 100px;
    height: 8px;
    background: #E2E8F0;
    border-radius: 10px;
    overflow: hidden;
}

.progress-mini .fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
}

.status {
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.status.active {
    background: #E8FFF8;
    color: var(--primary-dark);
}

.btn-icon {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    transition: color 0.2s;
}

.btn-icon:hover {
    color: var(--primary-color);
}

/* Games Admin Grid */
.games-admin-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.game-admin-card {
    background: white;
    border-radius: var(--border-radius-md);
    padding: 1.5rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 2px solid #E2E8F0;
    transition: all 0.2s;
}

.game-admin-card:hover {
    border-color: var(--primary-color);
}

.game-admin-card .game-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 0.5rem;
}

.game-admin-card h4 {
    margin: 0.5rem 0;
    color: var(--text-color);
}

.game-admin-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

/* ============================================
   Tracking Tables & Full Width Cards
   ============================================ */

.dashboard-card.full-width,
.admin-panel.full-width {
    grid-column: 1 / -1;
}

.students-tracking-table {
    overflow-x: auto;
}

.tracking-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.tracking-table th,
.tracking-table td {
    padding: 0.8rem 1rem;
    text-align: left;
    border-bottom: 1px solid #E2E8F0;
}

.tracking-table th {
    background: #F8F9FA;
    font-weight: 700;
    color: var(--text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tracking-table tbody tr:hover {
    background: #F8FFFE;
}

.tracking-table .student-cell {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.tracking-table .student-avatar {
    font-size: 1.5rem;
}

.tracking-table .student-name {
    font-weight: 600;
    color: var(--text-color);
}

.tracking-table .grade-badge {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: linear-gradient(135deg, var(--primary-light), #E0F7FA);
    color: var(--primary-dark);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.tracking-table .stars-display {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.tracking-table .stars-display .star-icon {
    color: #FFD93D;
    font-size: 1rem;
}

.tracking-table .stars-display .star-count {
    font-weight: 700;
    color: var(--text-color);
}

.tracking-table .progress-bar-cell {
    width: 120px;
}

.tracking-table .progress-bar {
    height: 10px;
    background: #E2E8F0;
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

.tracking-table .progress-bar .fill {
    height: 100%;
    border-radius: 10px;
    transition: width 0.5s ease;
}

.tracking-table .progress-bar .fill.low {
    background: linear-gradient(90deg, #FF6B6B, #FF8787);
}

.tracking-table .progress-bar .fill.medium {
    background: linear-gradient(90deg, #FFD93D, #FFE066);
}

.tracking-table .progress-bar .fill.high {
    background: linear-gradient(90deg, #00D4AA, #00E5C4);
}

.tracking-table .progress-percent {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.2rem;
}

.tracking-table .last-active {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.tracking-table .last-active.recent {
    color: var(--primary-color);
    font-weight: 600;
}

.tracking-table .status-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.tracking-table .status-indicator.active {
    background: #E8FFF8;
    color: #00B894;
}

.tracking-table .status-indicator.inactive {
    background: #FFF4E6;
    color: #FF9F43;
}

.tracking-table .status-indicator.needs-attention {
    background: #FFE6E6;
    color: #FF6B6B;
}

.tracking-table .status-indicator i {
    font-size: 0.6rem;
}

/* School Tracking Section */
.school-tracking-section {
    margin-top: 2rem;
}

.school-tracking-section h3 {
    margin-bottom: 1rem;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.school-tracking-section h3 i {
    color: var(--primary-color);
}

.grade-tracking-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.grade-tracking-card {
    background: white;
    border-radius: var(--border-radius-md);
    padding: 1.2rem;
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--primary-color);
}

.grade-tracking-card .grade-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.grade-tracking-card .grade-title {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-color);
}

.grade-tracking-card .grade-students {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.grade-tracking-card .grade-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.8rem;
    text-align: center;
}

.grade-tracking-card .grade-stat {
    padding: 0.5rem;
    background: #F8F9FA;
    border-radius: var(--border-radius-sm);
}

.grade-tracking-card .grade-stat-value {
    display: block;
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--primary-color);
}

.grade-tracking-card .grade-stat-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.grade-tracking-card .grade-progress {
    margin-top: 1rem;
}

.grade-tracking-card .grade-progress-bar {
    height: 8px;
    background: #E2E8F0;
    border-radius: 10px;
    overflow: hidden;
}

.grade-tracking-card .grade-progress-bar .fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
    transition: width 0.5s ease;
}

.grade-tracking-card .grade-progress-text {
    display: flex;
    justify-content: space-between;
    margin-top: 0.4rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ============================================
   Buttons - Estilo divertido y moderno
   ============================================ */

.btn {
    padding: 0.9rem 1.6rem;
    border: none;
    border-radius: var(--border-radius-md);
    font-size: 1rem;
    font-weight: 700;
    font-family: 'Nunito', sans-serif;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    position: relative;
    overflow: hidden;
    text-transform: none;
    letter-spacing: 0.3px;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.4s, height 0.4s;
}

.btn:active::before {
    width: 200px;
    height: 200px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    width: 100%;
    margin-bottom: 0.8rem;
    box-shadow: 0 4px 15px rgba(0, 212, 170, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 212, 170, 0.45);
}

.btn-secondary {
    background: transparent;
    border: 3px solid var(--primary-color);
    color: var(--primary-color);
    width: 100%;
}

.btn-secondary:hover {
    background: var(--primary-light);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color), #00B860);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 210, 106, 0.3);
}

.btn-success:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 210, 106, 0.45);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color), #E64545);
    color: white;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

.btn-danger:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.45);
}

.btn-small {
    padding: 0.6rem 1rem;
    font-size: 0.9rem;
    background: rgba(255, 255, 255, 0.9);
    color: var(--text-color);
    border: 2px solid #E8F5F2;
    border-radius: var(--border-radius-sm);
    backdrop-filter: blur(10px);
}

.btn-small:hover {
    background: var(--primary-light);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* ============================================
   Header - Colorido y atractivo
   ============================================ */

header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 50%, var(--accent-purple) 100%);
    padding: 1rem 2rem;
    box-shadow: 0 4px 20px rgba(0, 212, 170, 0.3);
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.08'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.header-content h1 {
    font-family: 'Fredoka One', 'Nunito', sans-serif;
    font-size: 1.7rem;
    display: flex;
    align-items: center;
    gap: 0.7rem;
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.header-content h1 i {
    color: var(--secondary-color);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
    animation: wiggle 3s ease-in-out infinite;
}

@keyframes wiggle {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(-5deg); }
    75% { transform: rotate(5deg); }
}

.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

#user-name {
    color: white;
    font-weight: 700;
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.15);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-sm);
    backdrop-filter: blur(10px);
}

header .btn-small {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

header .btn-small:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

/* ============================================
   Main Menu - Games Grid 🎮
   ============================================ */

.menu-content {
    padding: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.menu-content h2 {
    text-align: center;
    margin-bottom: 2.5rem;
    font-family: 'Fredoka One', 'Nunito', sans-serif;
    font-size: 2.4rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.menu-content h2::after {
    content: '🎮';
    position: absolute;
    font-size: 1.2rem;
    margin-left: 10px;
    animation: bounce-gentle 2s ease-in-out infinite;
}

.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.game-card {
    background: linear-gradient(145deg, #FFFFFF 0%, #F8FFFE 100%);
    border-radius: var(--border-radius-lg);
    padding: 2.5rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 3px solid transparent;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.game-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color), var(--accent-purple));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.game-card:hover::before {
    transform: scaleX(1);
}

.game-card:hover {
    transform: translateY(-12px) scale(1.02);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.game-card .icon {
    font-size: 5rem;
    margin-bottom: 1.2rem;
    display: block;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.15));
    transition: transform 0.4s ease;
}

.game-card:hover .icon {
    transform: scale(1.15) rotate(-5deg);
}

.game-card h3 {
    font-family: 'Fredoka One', 'Nunito', sans-serif;
    font-size: 1.6rem;
    margin-bottom: 0.7rem;
    color: var(--dark-color);
}

.game-card p {
    color: var(--text-muted);
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.5;
}

.game-card .progress-bar {
    margin-top: 1.5rem;
    background: #E8F5F2;
    border-radius: var(--border-radius-sm);
    height: 12px;
    overflow: hidden;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.game-card .progress-bar .fill {
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color), var(--accent-purple));
    height: 100%;
    border-radius: var(--border-radius-sm);
    transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.game-card .progress-bar .fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* ============================================
   Level Selection ⭐
   ============================================ */

.levels-content {
    padding: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.levels-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
    gap: 1.2rem;
    max-width: 900px;
    margin: 0 auto;
}

.level-card {
    aspect-ratio: 1;
    background: linear-gradient(145deg, #FFFFFF 0%, #F8FFFE 100%);
    border-radius: var(--border-radius-md);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 3px solid #E8F5F2;
    position: relative;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.level-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(0, 212, 170, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.level-card:hover:not(.locked)::before {
    opacity: 1;
}

.level-card:hover:not(.locked) {
    transform: scale(1.1) rotate(2deg);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md), var(--shadow-glow);
}

.level-card.locked {
    opacity: 0.6;
    cursor: not-allowed;
    background: linear-gradient(145deg, #F7FAFC 0%, #EDF2F7 100%);
    filter: grayscale(30%);
}

.level-card.locked::after {
    content: '\f023';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    font-size: 1.8rem;
    color: #A0AEC0;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.level-card.completed {
    border-color: var(--success-color);
    background: linear-gradient(145deg, #E8FFF3 0%, #D4FFEA 100%);
}

.level-card.completed::before {
    content: '✓';
    position: absolute;
    top: 8px;
    right: 8px;
    width: 24px;
    height: 24px;
    background: var(--success-color);
    color: white;
    border-radius: 50%;
    font-size: 14px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
    box-shadow: 0 2px 8px rgba(0, 210, 106, 0.4);
}

.level-card .level-number {
    font-family: 'Fredoka One', 'Nunito', sans-serif;
    font-size: 2rem;
    color: var(--dark-color);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.level-card .stars {
    margin-top: 0.6rem;
    color: var(--secondary-color);
    font-size: 0.9rem;
    display: flex;
    gap: 3px;
}

.level-card .stars i {
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.2));
    transition: transform 0.2s ease;
}

.level-card:hover:not(.locked) .stars i {
    animation: star-bounce 0.5s ease infinite;
}

.level-card .stars i:nth-child(2) { animation-delay: 0.1s; }
.level-card .stars i:nth-child(3) { animation-delay: 0.2s; }

@keyframes star-bounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

.level-card .stars i.empty {
    color: #D4D4D4;
}

/* ============================================
   Game Screen 🎯
   ============================================ */

.game-content {
    padding: 1.5rem;
    height: calc(100vh - 70px);
}

.game-layout {
    display: grid;
    grid-template-columns: 280px 1fr 320px;
    gap: 1.5rem;
    height: 100%;
    max-width: 1500px;
    margin: 0 auto;
}

/* Instructions Panel */
.instructions-panel {
    background: linear-gradient(145deg, #FFFFFF 0%, #F8FFFE 100%);
    border-radius: var(--border-radius-lg);
    padding: 1.8rem;
    overflow-y: auto;
    box-shadow: var(--shadow-md);
    border: 2px solid #E8F5F2;
}

.instructions-panel h3 {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 1.2rem;
    color: var(--primary-color);
    font-family: 'Fredoka One', 'Nunito', sans-serif;
    font-size: 1.3rem;
}

.instructions-panel h3 i {
    font-size: 1.4rem;
}

.instructions-panel p {
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 1.2rem;
    font-weight: 500;
    font-size: 1rem;
}

.objective {
    background: linear-gradient(135deg, var(--primary-light) 0%, #E8FFF8 100%);
    padding: 1.3rem;
    border-radius: var(--border-radius-md);
    border-left: 5px solid var(--primary-color);
    position: relative;
    overflow: hidden;
}

.objective::before {
    content: '🎯';
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 1.5rem;
    opacity: 0.3;
}

.objective h4 {
    color: var(--primary-dark);
    margin-bottom: 0.6rem;
    font-weight: 700;
    font-size: 1.1rem;
}

.objective p {
    margin-bottom: 0;
    color: var(--dark-color);
}

/* Game Board Container */
.game-board-container {
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(145deg, #FFFFFF 0%, #F0FDFA 100%);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    border: 2px solid #E8F5F2;
    position: relative;
    overflow: hidden;
}

.game-board-container::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 0% 0%, rgba(0, 212, 170, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 100% 100%, rgba(255, 221, 89, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

/* Game Board - El tablero mágico ✨ */
.game-board {
    display: grid;
    gap: 4px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    padding: 6px;
    border-radius: var(--border-radius-md);
    box-shadow: 
        0 8px 32px rgba(0, 212, 170, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    position: relative;
}

/* Celdas del tablero */
.cell {
    width: 65px;
    height: 65px;
    background: linear-gradient(145deg, #FFFFFF 0%, #F8FFFE 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    border-radius: 10px;
    box-shadow: 
        inset 0 2px 4px rgba(0, 0, 0, 0.03),
        0 1px 2px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.cell::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.1) 0%, transparent 100%);
    border-radius: 10px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.cell:hover::before {
    opacity: 1;
}

.cell.highlight {
    background: linear-gradient(145deg, rgba(0, 212, 170, 0.2), rgba(0, 212, 170, 0.1));
    box-shadow: inset 0 0 15px rgba(0, 212, 170, 0.3);
}

.cell.target {
    background: linear-gradient(145deg, rgba(255, 221, 89, 0.3), rgba(255, 221, 89, 0.15));
    border: 3px dashed var(--secondary-color);
    animation: target-pulse 2s ease-in-out infinite;
}

@keyframes target-pulse {
    0%, 100% { box-shadow: inset 0 0 10px rgba(255, 221, 89, 0.3); }
    50% { box-shadow: inset 0 0 20px rgba(255, 221, 89, 0.5); }
}

/* Robot/Cabezal - Con movimiento suave deslizante 🤖 */
.robot {
    width: 52px;
    height: 52px;
    background: url('../4.2-243_20_E6_8B_B7_E8_B4_9D-500x500.webp') center/contain no-repeat;
    border-radius: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 0;
    box-shadow: none;
    z-index: 10;
    /* IMPORTANTE: Transición suave para el movimiento deslizante */
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    position: absolute;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
}

.robot.up, .robot.direction-up { transform: rotate(0deg); }
.robot.right, .robot.direction-right { transform: rotate(90deg); }
.robot.down, .robot.direction-down { transform: rotate(180deg); }
.robot.left, .robot.direction-left { transform: rotate(-90deg); }

.robot.up::after,
.robot.down::after,
.robot.right::after,
.robot.left::after,
.robot.direction-up::after,
.robot.direction-down::after,
.robot.direction-right::after,
.robot.direction-left::after { content: ''; }

/* Efecto de movimiento del robot */
.robot.moving {
    animation: robot-hop 0.35s ease;
    filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.3));
}

@keyframes robot-hop {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Balls/Bolitas - Más lindas y brillantes 🔵🔴🟢⚫ */
.balls-container {
    display: flex;
    flex-wrap: wrap;
    gap: 3px;
    justify-content: center;
    position: absolute;
    bottom: 4px;
    max-width: 55px;
}

.ball {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    box-shadow: 
        inset -3px -3px 6px rgba(0, 0, 0, 0.3),
        inset 2px 2px 4px rgba(255, 255, 255, 0.4),
        0 2px 4px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    animation: ball-appear 0.4s ease;
}

@keyframes ball-appear {
    0% { transform: scale(0); opacity: 0; }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); opacity: 1; }
}

.ball.red { 
    background: radial-gradient(circle at 30% 30%, #FF8A8A, var(--ball-red), #CC5555);
}
.ball.blue { 
    background: radial-gradient(circle at 30% 30%, #82C4FF, var(--ball-blue), #4080CC);
}
.ball.green { 
    background: radial-gradient(circle at 30% 30%, #50EF90, var(--ball-green), #00A855);
}
.ball.black { 
    background: radial-gradient(circle at 30% 30%, #5A5A5A, var(--ball-black), #1A1A1A);
}

/* Code Panel - Panel de comandos 💻 */
.code-panel {
    background: linear-gradient(145deg, #FFFFFF 0%, #F8FFFE 100%);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 2px solid #E8F5F2;
}

.code-panel h3 {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-family: 'Fredoka One', 'Nunito', sans-serif;
    font-size: 1.2rem;
}

.available-commands {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-bottom: 1.2rem;
    padding-bottom: 1.2rem;
    border-bottom: 2px solid #E8F5F2;
}

.command-btn {
    padding: 0.6rem 1rem;
    background: linear-gradient(145deg, #FFFFFF 0%, #F8FFFE 100%);
    border: 2px solid #E8F5F2;
    border-radius: var(--border-radius-sm);
    color: var(--text-color);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 700;
    font-family: 'Nunito', sans-serif;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.command-btn:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-md);
}

.command-btn.movement { 
    border-color: var(--primary-color); 
    background: linear-gradient(145deg, var(--primary-light) 0%, #E8FFF8 100%);
}
.command-btn.movement:hover {
    background: var(--primary-color);
    color: white;
}

.command-btn.action { 
    border-color: var(--secondary-color); 
    background: linear-gradient(145deg, var(--secondary-light) 0%, #FFF9E6 100%);
}
.command-btn.action:hover {
    background: var(--secondary-color);
    color: var(--dark-color);
}

.command-btn.control { 
    border-color: var(--accent-purple); 
    background: linear-gradient(145deg, #F0E6FF 0%, #EDE4FF 100%);
}
.command-btn.control:hover {
    background: var(--accent-purple);
    color: white;
}

.program-area {
    flex: 1;
    background: linear-gradient(145deg, #F8FFFE 0%, #F0FDFA 100%);
    border-radius: var(--border-radius-md);
    padding: 1rem;
    overflow-y: auto;
    min-height: 200px;
    margin-bottom: 1rem;
    border: 3px dashed #D4F0EC;
    position: relative;
}

.program-area:empty::before {
    content: '🎯 Arrastra o haz clic en los comandos para crear tu programa';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.95rem;
    font-weight: 600;
    text-align: center;
    padding: 1rem;
}

.program-command {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.7rem 1rem;
    background: linear-gradient(145deg, #FFFFFF 0%, #F8FFFE 100%);
    border-radius: var(--border-radius-sm);
    margin-bottom: 0.6rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-left: 4px solid var(--primary-color);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    animation: slide-in 0.3s ease;
}

@keyframes slide-in {
    from { 
        opacity: 0; 
        transform: translateX(-20px); 
    }
    to { 
        opacity: 1; 
        transform: translateX(0); 
    }
}

.program-command:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-md);
}

.program-command.executing {
    border-left-color: var(--secondary-color);
    background: linear-gradient(145deg, #FFFDE7 0%, #FFF9C4 100%);
    animation: executing-pulse 0.5s ease infinite;
}

@keyframes executing-pulse {
    0%, 100% { box-shadow: var(--shadow-sm); }
    50% { box-shadow: 0 0 20px rgba(255, 221, 89, 0.5); }
}

.program-command .remove-cmd {
    background: none;
    border: none;
    color: var(--danger-color);
    cursor: pointer;
    padding: 0.3rem;
    font-size: 1rem;
    transition: all 0.2s ease;
    border-radius: 50%;
}

.program-command .remove-cmd:hover {
    background: rgba(255, 107, 107, 0.1);
    transform: scale(1.2);
}

.execution-controls {
    display: flex;
    gap: 0.8rem;
}

.execution-controls .btn {
    flex: 1;
    font-size: 1rem;
    padding: 1rem;
}

/* ============================================
   Modal - Ventanas emergentes lindas 🎉
   ============================================ */

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(8px);
}

.modal.active {
    display: flex;
}

.modal-content {
    background: linear-gradient(145deg, #FFFFFF 0%, #F8FFFE 100%);
    padding: 3rem;
    border-radius: var(--border-radius-xl);
    text-align: center;
    max-width: 420px;
    width: 90%;
    animation: modalPop 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-lg), 0 0 0 1px rgba(0, 212, 170, 0.1);
    border: 3px solid rgba(0, 212, 170, 0.1);
    position: relative;
    overflow: hidden;
}

.modal-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color), var(--accent-purple), var(--accent-pink));
}

@keyframes modalPop {
    from {
        transform: scale(0.7) translateY(20px);
        opacity: 0;
    }
    50% {
        transform: scale(1.02);
    }
    to {
        transform: scale(1) translateY(0);
        opacity: 1;
    }
}

.modal-content.victory {
    background: linear-gradient(145deg, #FFFDE7 0%, #FFF9C4 50%, #FFFFFF 100%);
}

.modal-content.victory > i.fa-trophy {
    font-size: 6rem;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    animation: trophy-bounce 1s ease infinite;
    filter: drop-shadow(0 4px 8px rgba(255, 159, 67, 0.4));
}

.modal-content.victory .modal-buttons .btn i {
    font-size: 1rem;
    background: none;
    -webkit-background-clip: unset;
    -webkit-text-fill-color: inherit;
    background-clip: unset;
    filter: none;
    animation: none;
    margin-bottom: 0;
}

@keyframes trophy-bounce {
    0%, 100% { transform: scale(1) rotate(0deg); }
    25% { transform: scale(1.1) rotate(-5deg); }
    75% { transform: scale(1.1) rotate(5deg); }
}

.modal-content h2 {
    margin-bottom: 0.6rem;
    color: var(--dark-color);
    font-family: 'Fredoka One', 'Nunito', sans-serif;
    font-size: 1.8rem;
}

.modal-content p {
    color: var(--text-muted);
    margin-bottom: 1.2rem;
    font-weight: 600;
    font-size: 1.1rem;
}

.modal .stars {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1.8rem;
    display: flex;
    justify-content: center;
    gap: 0.5rem;
}

.modal .stars i {
    animation: star-pop 0.4s ease forwards;
    opacity: 0;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.modal .stars i:nth-child(1) { animation-delay: 0.2s; }
.modal .stars i:nth-child(2) { animation-delay: 0.4s; }
.modal .stars i:nth-child(3) { animation-delay: 0.6s; }

@keyframes star-pop {
    0% { transform: scale(0) rotate(-180deg); opacity: 0; }
    50% { transform: scale(1.3) rotate(10deg); }
    100% { transform: scale(1) rotate(0deg); opacity: 1; }
}

.modal .stars i.empty {
    color: #E0E0E0;
}

.modal-buttons {
    display: flex;
    gap: 1rem;
}

.modal-buttons .btn {
    flex: 1;
    font-size: 1rem;
}

/* ============================================
   Responsive Design 📱
   ============================================ */

@media (max-width: 1024px) {
    .game-layout {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr auto;
    }
    
    .instructions-panel {
        order: 1;
    }
    
    .game-board-container {
        order: 2;
    }
    
    .code-panel {
        order: 3;
    }
}

@media (max-width: 768px) {
    .cell {
        width: 50px;
        height: 50px;
    }
    
    .robot {
        width: 38px;
        height: 38px;
    }
    
    .ball {
        width: 10px;
        height: 10px;
    }
    
    .header-content h1 {
        font-size: 1.3rem;
    }
    
    .games-grid {
        grid-template-columns: 1fr;
    }
    
    .login-container {
        padding: 2rem;
        margin: 1rem;
    }
    
    .logo h1 {
        font-size: 2rem;
    }
    
    .logo i {
        font-size: 3.5rem;
    }
    
    .menu-content h2 {
        font-size: 1.8rem;
    }
    
    .level-card {
        min-width: 80px;
    }
    
    .level-card .level-number {
        font-size: 1.5rem;
    }
}

/* ============================================
   Animations - Más animaciones divertidas 🎬
   ============================================ */

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.robot.moving {
    animation: robot-move 0.35s ease;
}

@keyframes robot-move {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

.ball.dropping {
    animation: ball-drop 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes ball-drop {
    0% { transform: translateY(-20px) scale(0); opacity: 0; }
    60% { transform: translateY(5px) scale(1.1); }
    100% { transform: translateY(0) scale(1); opacity: 1; }
}

/* Confetti animation para victoria */
@keyframes confetti-fall {
    0% { transform: translateY(-100vh) rotate(0deg); opacity: 1; }
    100% { transform: translateY(100vh) rotate(720deg); opacity: 0; }
}

.confetti {
    position: fixed;
    width: 10px;
    height: 10px;
    top: 0;
    animation: confetti-fall 3s linear infinite;
    z-index: 1001;
    pointer-events: none;
}

/* Hover effects extra */
.interactive-hover {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.interactive-hover:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

/* ============================================
   Level Editor Styles 🎨
   ============================================ */

.menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.menu-header h2 {
    margin: 0;
    color: var(--dark-color);
}

.btn-editor {
    background: linear-gradient(135deg, var(--accent-purple), #8B80F0);
    color: white;
    font-size: 1rem;
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius-md);
    box-shadow: 0 4px 15px rgba(162, 155, 254, 0.4);
}

.btn-editor:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 25px rgba(162, 155, 254, 0.5);
}

.editor-content {
    padding: 1.5rem;
    height: calc(100vh - 70px);
    overflow: hidden;
}

.editor-layout {
    display: grid;
    grid-template-columns: 300px 1fr 320px;
    gap: 1.5rem;
    height: 100%;
    max-width: 1700px;
    margin: 0 auto;
}

.editor-panel {
    background: linear-gradient(145deg, #FFFFFF 0%, #F8FFFE 100%);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    overflow-y: auto;
    box-shadow: var(--shadow-md);
    border: 2px solid #E8F5F2;
}

.editor-panel h3 {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 1.2rem;
    color: var(--primary-color);
    font-family: 'Fredoka One', 'Nunito', sans-serif;
    font-size: 1.2rem;
}

.editor-panel h4 {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin: 1.2rem 0 0.7rem;
    font-weight: 700;
}

.config-section {
    margin-bottom: 1.8rem;
    padding-bottom: 1.3rem;
    border-bottom: 2px solid #E8F5F2;
}

.config-section:last-child {
    border-bottom: none;
}

.editor-panel .form-group {
    margin-bottom: 1rem;
}

.editor-panel .form-group label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
    font-weight: 600;
}

.editor-panel .form-group input,
.editor-panel .form-group select,
.editor-panel .form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid #E8F5F2;
    border-radius: var(--border-radius-sm);
    background: linear-gradient(145deg, #FFFFFF 0%, #F8FFFE 100%);
    color: var(--text-color);
    font-size: 0.95rem;
    font-family: 'Nunito', sans-serif;
    font-weight: 600;
    transition: all 0.3s ease;
}

.editor-panel .form-group input:focus,
.editor-panel .form-group select:focus,
.editor-panel .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px var(--primary-glow);
}

.editor-panel .form-group textarea {
    min-height: 80px;
    resize: vertical;
}

.size-inputs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.8rem;
}

.commands-checkboxes {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.commands-checkboxes label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-color);
    cursor: pointer;
    padding: 0.4rem;
    border-radius: 8px;
    transition: background 0.2s ease;
    font-weight: 600;
}

.commands-checkboxes label:hover {
    background: var(--primary-light);
}

.commands-checkboxes input[type="checkbox"] {
    width: auto;
    accent-color: var(--primary-color);
    width: 18px;
    height: 18px;
}

/* Board Panel - Editor */
.board-panel {
    display: flex;
    flex-direction: column;
}

.toolbar {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    padding: 1rem 1.2rem;
    background: linear-gradient(145deg, #F8FFFE 0%, #F0FDFA 100%);
    border-radius: var(--border-radius-md);
    margin-bottom: 1.2rem;
    flex-wrap: wrap;
    border: 2px solid #E8F5F2;
}

.toolbar h4 {
    margin: 0;
    font-size: 0.95rem;
    color: var(--text-muted);
    font-weight: 700;
}

.tool-buttons {
    display: flex;
    gap: 0.6rem;
}

.tool-btn {
    width: 48px;
    height: 48px;
    border: 3px solid #E8F5F2;
    border-radius: var(--border-radius-sm);
    background: linear-gradient(145deg, #FFFFFF 0%, #F8FFFE 100%);
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.tool-btn:hover {
    border-color: var(--primary-color);
    background: var(--primary-light);
    transform: translateY(-3px);
}

.tool-btn.active {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 15px rgba(0, 212, 170, 0.4);
}

.color-selector {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-left: auto;
}

.color-selector span {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 600;
}

.color-btn {
    width: 34px;
    height: 34px;
    border: 4px solid transparent;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 
        inset -2px -2px 4px rgba(0, 0, 0, 0.2),
        inset 2px 2px 4px rgba(255, 255, 255, 0.3);
}

.color-btn:hover {
    transform: scale(1.15);
}

.color-btn.active {
    border-color: white;
    box-shadow: 
        0 0 0 3px var(--primary-color),
        inset -2px -2px 4px rgba(0, 0, 0, 0.2),
        inset 2px 2px 4px rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.editor-board-container {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(145deg, #F8FFFE 0%, #F0FDFA 100%);
    border-radius: var(--border-radius-md);
    padding: 1.5rem;
    overflow: auto;
    border: 2px solid #E8F5F2;
}

#editor-board .cell {
    position: relative;
    cursor: pointer;
}

#editor-board .cell:hover {
    background: linear-gradient(145deg, rgba(0, 212, 170, 0.15), rgba(0, 212, 170, 0.1));
    transform: scale(1.05);
}

.cell-coord {
    position: absolute;
    top: 3px;
    left: 3px;
    font-size: 0.65rem;
    color: var(--text-muted);
    opacity: 0.5;
    font-weight: 600;
}

.cell.objective-cell {
    background: linear-gradient(145deg, rgba(0, 212, 170, 0.25), rgba(0, 212, 170, 0.15));
    border: 3px solid var(--primary-color);
}

.editor-tips {
    padding: 1rem 1.2rem;
    background: linear-gradient(145deg, #FFF9E6 0%, #FFFDE7 100%);
    border-radius: var(--border-radius-md);
    margin-top: 1.2rem;
    border: 2px solid var(--secondary-color);
    position: relative;
}

.editor-tips::before {
    content: '💡';
    position: absolute;
    top: -12px;
    left: 15px;
    font-size: 1.3rem;
    background: white;
    padding: 0 5px;
    border-radius: 50%;
}

.editor-tips p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--dark-color);
    font-weight: 600;
}

/* Objectives Panel */
.add-objective-form {
    background: linear-gradient(145deg, #F8FFFE 0%, #F0FDFA 100%);
    padding: 1.2rem;
    border-radius: var(--border-radius-md);
    margin-bottom: 1.2rem;
    border: 2px solid #E8F5F2;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.8rem;
}

.objective-params {
    margin: 1rem 0;
}

.objectives-list-container {
    flex: 1;
}

.objectives-list-container h4 {
    margin-top: 0;
}

.objectives-list {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
}

.objective-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 1rem;
    background: linear-gradient(145deg, #FFFFFF 0%, #F8FFFE 100%);
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    border: 2px solid #E8F5F2;
    transition: all 0.3s ease;
}

.objective-item:hover {
    border-color: var(--primary-color);
    transform: translateX(5px);
}

.objective-item span {
    flex: 1;
    color: var(--text-color);
    font-weight: 600;
}

.remove-obj-btn {
    background: none;
    border: none;
    color: var(--danger-color);
    cursor: pointer;
    padding: 0.4rem;
    font-size: 1rem;
    transition: all 0.2s ease;
    border-radius: 50%;
}

.remove-obj-btn:hover {
    background: rgba(255, 107, 107, 0.1);
    transform: scale(1.2);
}

.editor-bottom-actions {
    margin-top: auto;
    padding-top: 1.2rem;
}

/* Export Modal */
.export-modal-content {
    max-width: 650px;
    width: 95%;
}

.export-modal-content code {
    background: var(--primary-light);
    padding: 0.3rem 0.6rem;
    border-radius: 6px;
    font-size: 0.9rem;
    color: var(--primary-dark);
    font-weight: 700;
}

.json-output {
    background: linear-gradient(145deg, #1A202C 0%, #2D3748 100%);
    color: #68D391;
    padding: 1.2rem;
    border-radius: var(--border-radius-md);
    max-height: 300px;
    overflow-y: auto;
    font-size: 0.85rem;
    line-height: 1.5;
    text-align: left;
    white-space: pre-wrap;
    word-break: break-word;
    margin: 1.2rem 0;
    font-family: 'Consolas', 'Monaco', monospace;
    border: 2px solid #4A5568;
}

/* Editor Responsive */
@media (max-width: 1200px) {
    .editor-layout {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto;
    }
    
    .config-panel {
        order: 1;
    }
    
    .board-panel {
        order: 2;
        min-height: 450px;
    }
    
    .objectives-panel {
        order: 3;
    }
}

/* ============================================
   Scrollbar personalizado ✨
   ============================================ */

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: #F0FDFA;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 10px;
    border: 2px solid #F0FDFA;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

/* ============================================
   Estilos adicionales para accesibilidad
   ============================================ */

:focus-visible {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

/* Animación de carga */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(0, 212, 170, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Tooltips */
[data-tooltip] {
    position: relative;
}

[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-5px);
    background: var(--dark-color);
    color: white;
    padding: 0.5rem 0.8rem;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all 0.2s ease;
    z-index: 100;
}

[data-tooltip]:hover::after {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ============================================
   Animaciones de confetti
   ============================================ */

@keyframes confetti-fall {
    0% { 
        transform: translateY(-100vh) rotate(0deg); 
        opacity: 1; 
    }
    100% { 
        transform: translateY(100vh) rotate(720deg); 
        opacity: 0; 
    }
}

/* ============================================
   Progress bar del usuario
   ============================================ */

.user-progress {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.6rem 1.2rem;
    border-radius: var(--border-radius-sm);
    font-weight: 700;
    color: white;
    font-size: 0.95rem;
    backdrop-filter: blur(10px);
}

.user-progress span {
    color: var(--secondary-color);
}

/* ============================================
   Estilos extra para pequeños detalles
   ============================================ */

/* Efecto de selección de texto */
::selection {
    background: var(--primary-color);
    color: white;
}

/* Placeholder con mejor estilo */
::placeholder {
    color: #A0AEC0;
    font-style: italic;
}

/* Small text helper */
small {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 600;
}

/* Efecto de brillo en iconos del header */
header .fas {
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Animación de entrada para las pantallas */
.screen.active {
    animation: screenFadeIn 0.4s ease;
}

@keyframes screenFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Efecto hover extra para las cards de nivel */
.level-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, transparent 0%, rgba(0, 0, 0, 0.02) 100%);
    border-radius: inherit;
    pointer-events: none;
}

/* Ajuste para el emoji del título del menú */
.menu-content h2::after {
    display: inline-block;
    vertical-align: middle;
}

/* Responsive extra para móviles pequeños */
@media (max-width: 480px) {
    .login-container {
        padding: 1.5rem;
        border-radius: var(--border-radius-lg);
    }
    
    .logo h1 {
        font-size: 1.8rem;
    }
    
    .logo i {
        font-size: 3rem;
    }
    
    .btn {
        padding: 0.8rem 1.2rem;
        font-size: 0.95rem;
    }
    
    .game-card {
        padding: 1.5rem;
    }
    
    .game-card .icon {
        font-size: 3.5rem;
    }
    
    .game-card h3 {
        font-size: 1.3rem;
    }
    
    .modal-content {
        padding: 2rem;
    }
    
    .modal-content h2 {
        font-size: 1.5rem;
    }
    
    .modal-content.victory i {
        font-size: 4rem;
    }
}

/* Ajuste del robot en el tablero */
#game-board {
    position: relative;
}

#game-robot {
    pointer-events: none;
}

/* Asegurar que las celdas no afecten la posición del robot */
.cell {
    overflow: visible;
}

/* ============================================
   SISTEMA DE REGISTRO CON ROLES
   ============================================ */

.role-label {
    display: block;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-color);
    font-size: 0.95rem;
}

.role-selector {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.role-option {
    cursor: pointer;
}

.role-option input {
    display: none;
}

.role-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem 1.5rem;
    background: var(--light-color);
    border: 3px solid transparent;
    border-radius: var(--border-radius-md);
    transition: all 0.3s ease;
}

.role-option input:checked + .role-card {
    border-color: var(--primary-color);
    background: var(--primary-light);
    transform: scale(1.05);
}

.role-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.role-name {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--text-color);
}

.teacher-field,
.student-field {
    margin-top: 0.5rem;
}

.teacher-field select,
.student-field input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #E2E8F0;
    border-radius: var(--border-radius-md);
    font-family: inherit;
    font-size: 0.95rem;
}

/* ============================================
   ESTILOS DE DASHBOARDS
   ============================================ */

.dashboard-header {
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-cyan) 100%);
    color: white;
    border-radius: var(--border-radius-lg);
    margin-bottom: 2rem;
    box-shadow: var(--shadow-md);
}

.dashboard-header h1 {
    font-family: 'Fredoka One', cursive;
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.dashboard-header p {
    opacity: 0.9;
    font-size: 1.1rem;
}

.dashboard-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    padding: 0.5rem;
    background: var(--light-color);
    border-radius: var(--border-radius-lg);
    overflow-x: auto;
}

.tab-btn {
    flex: 1;
    padding: 1rem 1.5rem;
    border: none;
    background: transparent;
    border-radius: var(--border-radius-md);
    font-family: inherit;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.tab-btn:hover {
    background: white;
}

.tab-btn.active {
    background: white;
    color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.tab-panel {
    display: none;
    animation: fadeInUp 0.3s ease;
}

.tab-panel.active {
    display: block;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.dashboard-content {
    padding: 0 1rem;
}

.dashboard-actions {
    text-align: center;
    margin-top: 2rem;
    padding: 1rem;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border: 3px solid transparent;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.stat-card.stat-primary {
    border-color: var(--primary-color);
}

.stat-card.stat-success {
    border-color: var(--success-color);
}

.stat-card.stat-info {
    border-color: var(--accent-cyan);
}

.stat-card.stat-warning {
    border-color: var(--secondary-color);
}

.stat-icon {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-family: 'Fredoka One', cursive;
    font-size: 2.5rem;
    color: var(--primary-dark);
    line-height: 1;
}

.stat-label {
    font-weight: 600;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

/* Quick Actions */
.quick-actions {
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius-lg);
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
}

.quick-actions h3 {
    font-family: 'Fredoka One', cursive;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.btn-action {
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    border: none;
    border-radius: var(--border-radius-md);
    font-family: inherit;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-action:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

/* Recent Activity */
.recent-activity {
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
}

.recent-activity h3 {
    font-family: 'Fredoka One', cursive;
    margin-bottom: 1rem;
}

.activity-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    background: var(--light-color);
    border-radius: var(--border-radius-sm);
}

.activity-icon {
    font-size: 1.5rem;
}

.activity-text {
    flex: 1;
    font-weight: 600;
}

.activity-meta {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Panel Header */
.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.panel-header h2 {
    font-family: 'Fredoka One', cursive;
    color: var(--text-color);
}

/* Schools Grid */
.schools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.school-card {
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border-left: 4px solid var(--primary-color);
}

.school-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.school-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.school-header h3 {
    font-family: 'Fredoka One', cursive;
    font-size: 1.2rem;
}

.school-badge {
    background: var(--primary-light);
    color: var(--primary-dark);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.school-info p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.school-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

/* Buttons pequeños */
.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    border: none;
    border-radius: var(--border-radius-sm);
    font-family: inherit;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-edit {
    background: var(--secondary-light);
    color: var(--secondary-dark);
}

.btn-view {
    background: var(--primary-light);
    color: var(--primary-dark);
}

.btn-danger {
    background: #FFE5E5;
    color: var(--danger-color);
}

.btn-sm:hover {
    transform: scale(1.05);
}

/* Levels List */
.levels-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.level-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: white;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
}

.level-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.level-name {
    font-weight: 700;
}

.level-game {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.level-status .status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.status-badge.published {
    background: #E6FFE6;
    color: var(--success-color);
}

.status-badge.draft {
    background: var(--secondary-light);
    color: var(--secondary-dark);
}

.level-actions {
    display: flex;
    gap: 0.5rem;
}

/* Users Section */
.users-section {
    margin-bottom: 2rem;
}

.users-section h3 {
    font-family: 'Fredoka One', cursive;
    margin-bottom: 1rem;
}

.users-table {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.user-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: white;
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-sm);
}

.user-name {
    font-weight: 700;
    min-width: 150px;
}

.user-email {
    color: var(--text-muted);
    flex: 1;
}

.user-school {
    color: var(--primary-dark);
    font-size: 0.9rem;
}

.user-actions {
    margin-left: auto;
}

/* Empty Message */
.empty-message {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    font-style: italic;
}

/* More Users */
.more-users {
    text-align: center;
    color: var(--text-muted);
    padding: 0.5rem;
    font-size: 0.9rem;
}

/* Level Editor Link */
.level-editor-link {
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--light-color);
    border-radius: var(--border-radius-lg);
    text-align: center;
}

.level-editor-link p {
    margin-bottom: 1rem;
    color: var(--text-muted);
}

/* Modal Overlay */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    padding: 1rem;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-overlay .modal-content {
    background: white;
    border-radius: var(--border-radius-lg);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid #E2E8F0;
}

.modal-header h2 {
    font-family: 'Fredoka One', cursive;
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--text-muted);
    line-height: 1;
}

.modal-body {
    padding: 1.5rem;
}

/* Form Styles */
.modal-body .form-group {
    margin-bottom: 1rem;
}

.modal-body .form-group label {
    display: block;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.modal-body .form-group input,
.modal-body .form-group select,
.modal-body .form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #E2E8F0;
    border-radius: var(--border-radius-sm);
    font-family: inherit;
    font-size: 0.95rem;
    transition: border-color 0.2s ease;
}

.modal-body .form-group input:focus,
.modal-body .form-group select:focus,
.modal-body .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.modal-body textarea {
    min-height: 100px;
    resize: vertical;
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.form-actions .btn-secondary {
    flex: 1;
}

.form-actions .btn-primary {
    flex: 2;
}

/* Notifications */
.notification {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 1rem 1.5rem;
    background: white;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
    font-weight: 600;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 2000;
}

.notification.show {
    transform: translateY(0);
    opacity: 1;
}

.notification-success {
    border-left: 4px solid var(--success-color);
}

.notification-error {
    border-left: 4px solid var(--danger-color);
}

.notification-warning {
    border-left: 4px solid var(--secondary-color);
}

/* Students Grid */
.students-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}

.student-card {
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: all 0.3s ease;
}

.student-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.student-avatar {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.student-info h3 {
    font-family: 'Fredoka One', cursive;
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.student-info p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.student-actions {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin-top: 1rem;
}

/* Invite Section */
.invite-section {
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--secondary-light);
    border-radius: var(--border-radius-lg);
    text-align: center;
}

.invite-section h3 {
    font-family: 'Fredoka One', cursive;
    margin-bottom: 0.5rem;
}

.invite-code {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
}

.invite-code code {
    background: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-sm);
    font-family: 'Courier New', monospace;
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 2px;
}

/* Assignments List */
.assignments-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.assignment-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: white;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
}

.assignment-card:hover {
    transform: translateX(5px);
}

.assignment-card.completed {
    opacity: 0.7;
}

.assignment-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.assignment-student {
    font-weight: 700;
}

.assignment-game {
    color: var(--primary-dark);
    font-size: 0.9rem;
}

.assignment-date {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.assignment-status .status-badge.pending {
    background: var(--secondary-light);
    color: var(--secondary-dark);
}

.assignment-status .status-badge.completed {
    background: #E6FFE6;
    color: var(--success-color);
}

/* Progress Overview */
.progress-overview {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.student-progress-card {
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
}

.student-progress-card .student-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.progress-badge {
    background: var(--primary-light);
    color: var(--primary-dark);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

.progress-bar-container {
    height: 12px;
    background: var(--light-color);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--accent-cyan) 100%);
    border-radius: 10px;
    transition: width 0.5s ease;
}

.progress-bar.animated {
    animation: progressPulse 2s ease-in-out infinite;
}

@keyframes progressPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

/* Teacher Info */
.teacher-info {
    margin-bottom: 1.5rem;
}

.teacher-info .school-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--secondary-light);
    color: var(--secondary-dark);
    border-radius: var(--border-radius-md);
    font-weight: 700;
}

/* School Details */
.school-details .detail-section {
    margin-bottom: 1.5rem;
}

.school-details h3 {
    font-family: 'Fredoka One', cursive;
    margin-bottom: 1rem;
    color: var(--primary-dark);
}

.mini-stats {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.mini-stat {
    flex: 1;
    text-align: center;
    padding: 1rem;
    background: var(--light-color);
    border-radius: var(--border-radius-sm);
}

.mini-stat-value {
    font-family: 'Fredoka One', cursive;
    font-size: 1.5rem;
    color: var(--primary-color);
    display: block;
}

.mini-stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Student Dashboard Specifics */
.student-header {
    background: linear-gradient(135deg, var(--accent-purple) 0%, var(--accent-pink) 100%) !important;
}

.student-welcome {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
    background: white;
    border-radius: var(--border-radius-lg);
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
}

.welcome-avatar {
    font-size: 4rem;
}

.welcome-text h2 {
    font-family: 'Fredoka One', cursive;
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.welcome-text p {
    color: var(--text-muted);
}

.student-stats .fun-stat {
    position: relative;
    overflow: hidden;
}

.student-stats .fun-stat::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 70%);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Pending Tasks */
.pending-tasks {
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius-lg);
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
}

.pending-tasks h3 {
    font-family: 'Fredoka One', cursive;
    margin-bottom: 1rem;
}

.tasks-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.task-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--secondary-light);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
}

.task-card:hover {
    transform: translateX(5px);
    background: var(--secondary-color);
}

.task-icon {
    font-size: 1.5rem;
}

.task-info {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.task-name {
    font-weight: 700;
}

.task-date {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.task-arrow {
    font-size: 1.2rem;
}

/* No Tasks */
.no-tasks {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: var(--border-radius-lg);
    margin-bottom: 2rem;
}

.no-tasks-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 0.5rem;
}

.no-tasks h3 {
    font-family: 'Fredoka One', cursive;
    color: var(--success-color);
    margin-bottom: 0.5rem;
}

/* Quick Play */
.quick-play {
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
}

.quick-play h3 {
    font-family: 'Fredoka One', cursive;
    margin-bottom: 0.5rem;
}

.quick-play p {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.quick-games {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.quick-game-btn {
    flex: 1;
    min-width: 120px;
    padding: 1rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-cyan) 100%);
    color: white;
    border: none;
    border-radius: var(--border-radius-md);
    font-family: inherit;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
}

.quick-game-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

/* Student Assignments */
.student-assignment {
    cursor: pointer;
}

.student-assignment .assignment-icon {
    font-size: 2rem;
}

.student-assignment.overdue {
    border-left: 4px solid var(--danger-color);
}

.overdue-text {
    color: var(--danger-color) !important;
    font-weight: 700;
}

.btn-go {
    padding: 0.5rem 1rem !important;
}

.completion-badge {
    font-size: 1.2rem;
}

/* Game Progress Card */
.game-progress-card {
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: 1rem;
}

.game-progress-card .game-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.game-progress-card .game-icon {
    font-size: 1.5rem;
}

.game-progress-card .game-name {
    font-family: 'Fredoka One', cursive;
    font-size: 1.1rem;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.progress-text {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.progress-percentage {
    font-weight: 700;
    color: var(--primary-color);
}

.level-dots {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.level-dot {
    font-size: 0.9rem;
}

.level-dot.completed {
    color: var(--secondary-color);
}

.more-levels {
    font-size: 0.8rem;
    color: var(--text-muted);
    background: var(--light-color);
    padding: 0.2rem 0.5rem;
    border-radius: 10px;
}

.btn-continue {
    width: 100%;
}

/* Achievements Grid */
.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.achievement-card {
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 1rem;
    position: relative;
    transition: all 0.3s ease;
}

.achievement-card.locked {
    opacity: 0.5;
    filter: grayscale(100%);
}

.achievement-card.unlocked {
    border: 2px solid var(--secondary-color);
}

.achievement-card:hover {
    transform: translateY(-3px);
}

.achievement-icon {
    font-size: 2rem;
}

.achievement-info {
    flex: 1;
}

.achievement-name {
    font-weight: 700;
    display: block;
    margin-bottom: 0.25rem;
}

.achievement-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.achievement-check {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: var(--success-color);
    color: white;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
}

.achievement-count {
    background: var(--secondary-light);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

.achievement-motivation {
    text-align: center;
    padding: 1.5rem;
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* Student Dashboard Actions */
.student-actions .btn-play {
    font-size: 1.2rem;
    padding: 1rem 2rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* Student Progress Detail Modal */
.student-progress-detail .student-info-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #E2E8F0;
}

.student-avatar-large {
    font-size: 3rem;
}

.student-progress-detail h3 {
    font-family: 'Fredoka One', cursive;
    margin-bottom: 0.25rem;
}

.game-progress {
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--light-color);
    border-radius: var(--border-radius-sm);
}

.game-progress h4 {
    font-family: 'Fredoka One', cursive;
    margin-bottom: 0.5rem;
}

.levels-progress {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.level-badge {
    padding: 0.25rem 0.5rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
}

.level-badge.completed {
    background: #E6FFE6;
    color: var(--success-color);
}

.level-badge.attempted {
    background: var(--secondary-light);
    color: var(--secondary-dark);
}

/* Error message */
.error-message {
    background: #FFE5E5;
    color: var(--danger-color);
    padding: 1rem;
    border-radius: var(--border-radius-sm);
    text-align: center;
    margin-top: 1rem;
}

/* Loading */
.loading {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
}

/* Button Link */
.btn-link {
    background: none;
    border: none;
    color: var(--primary-color);
    font-family: inherit;
    font-weight: 700;
    cursor: pointer;
    text-decoration: underline;
    margin-top: 1rem;
}

/* Dashboard screens padding */
#admin-dashboard,
#teacher-dashboard,
#student-dashboard {
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* ============================================
   Educational Sessions Styles
   ============================================ */

/* Main Menu Educational Section */
.educational-section {
    background: #FFFFFF;
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    margin-bottom: 2rem;
    border: 2px solid var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.educational-section h3 {
    color: var(--primary-dark);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.educational-section p {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.btn-educational {
    background: var(--primary-color);
    color: white;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(0, 200, 200, 0.3);
}

.btn-educational:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 200, 200, 0.4);
}

.divider {
    display: flex;
    align-items: center;
    margin: 2rem 0;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--board-border);
}

.divider span {
    padding: 0 1rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.games-section-title {
    color: var(--text-color);
    font-size: 1.3rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.section-title {
    text-align: center;
    font-size: 1.5rem;
    color: var(--text-color);
    margin-bottom: 2rem;
}

/* Grades Grid */
.grades-content {
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* Responsive Dashboard */
@media (max-width: 768px) {
    .dashboard-header h1 {
        font-size: 1.5rem;
    }
    
    .dashboard-tabs {
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .tab-btn {
        padding: 0.75rem 1rem;
        font-size: 0.85rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .schools-grid,
    .students-grid {
        grid-template-columns: 1fr;
    }
    
    .panel-header {
        flex-direction: column;
        text-align: center;
    }
    
    .modal-overlay .modal-content {
        max-width: 100%;
        margin: 1rem;
    }
    
    .student-welcome {
        flex-direction: column;
        text-align: center;
    }
    
    .quick-games {
        flex-direction: column;
    }
    
    .achievements-grid {
        grid-template-columns: 1fr;
    }
}

.grades-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    padding: 1rem;
}

.grade-card {
    background: var(--card-background);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    border: 3px solid transparent;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.grade-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: var(--grade-color, var(--primary-color));
}

.grade-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--grade-color, var(--primary-color));
}

.grade-card .icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.grade-card h3 {
    font-size: 1.5rem;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.grade-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.grade-card .sessions-count {
    background: var(--primary-light);
    color: var(--primary-dark);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    display: inline-block;
}

/* Sessions Grid */
.sessions-content {
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.sessions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    padding: 1rem;
}

.session-card {
    background: var(--card-background);
    border-radius: 16px;
    padding: 1.5rem;
    cursor: pointer;
    transition: all 0.3s;
    border: 2px solid var(--board-border);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    position: relative;
}

.session-card.locked {
    opacity: 0.6;
    cursor: not-allowed;
}

.session-card.locked::after {
    content: '🔒';
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.5rem;
}

.session-card.completed {
    border-color: var(--success-color);
}

.session-card.completed::after {
    content: '✅';
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.5rem;
}

.session-card:not(.locked):hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.session-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.session-icon {
    font-size: 2.5rem;
    background: var(--primary-light);
    padding: 0.75rem;
    border-radius: 12px;
}

.session-info h4 {
    font-size: 1.1rem;
    color: var(--text-color);
    margin-bottom: 0.25rem;
}

.session-info span {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.session-objective-preview {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.4;
    margin-bottom: 1rem;
    flex-grow: 1;
}

.session-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--board-border);
}

.session-badge-preview {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--secondary-dark);
}

.session-progress-bar {
    width: 100px;
    height: 8px;
    background: var(--board-cell);
    border-radius: 4px;
    overflow: hidden;
}

.session-progress-bar .fill {
    height: 100%;
    background: var(--success-color);
    border-radius: 4px;
    transition: width 0.3s;
}

/* Proposals Grid */
.proposals-content {
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.session-objective {
    background: #FFFFFF;
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    border-left: 5px solid var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.session-objective h3 {
    color: var(--primary-dark);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.session-objective p {
    color: var(--text-color);
    font-size: 1.1rem;
}

.proposals-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.proposal-card {
    background: var(--card-background);
    border-radius: 20px;
    padding: 2rem;
    cursor: pointer;
    transition: all 0.3s;
    border: 2px solid var(--board-border);
    box-shadow: var(--shadow-md);
}

.proposal-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.proposal-card h3 {
    font-size: 1.3rem;
    color: var(--text-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.proposal-exercises-count {
    background: var(--primary-light);
    color: var(--primary-dark);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    display: inline-block;
}

/* Exercises Grid */
.exercises-content {
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.exercises-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.exercise-card {
    background: var(--card-background);
    border-radius: 16px;
    padding: 1.5rem;
    cursor: pointer;
    transition: all 0.3s;
    border: 2px solid var(--board-border);
    box-shadow: var(--shadow-sm);
    text-align: center;
}

.exercise-card.locked {
    opacity: 0.5;
    cursor: not-allowed;
}

.exercise-card.completed {
    border-color: var(--success-color);
    background: #FFFFFF;
}

.exercise-card:not(.locked):hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.exercise-number {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 1rem;
}

.exercise-card.completed .exercise-number {
    background: var(--success-color);
}

.exercise-card.locked .exercise-number {
    background: var(--text-muted);
}

.exercise-card h4 {
    font-size: 1rem;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.exercise-card p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.exercise-type-badge {
    background: var(--secondary-color);
    color: var(--text-color);
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.75rem;
    display: inline-block;
    margin-top: 0.5rem;
}

/* Exercise Screen */
.exercise-content {
    padding: 1rem;
    height: calc(100vh - 70px);
    display: flex;
    flex-direction: column;
}

.exercise-layout {
    display: grid;
    grid-template-columns: 250px 1fr 300px;
    gap: 1rem;
    flex: 1;
    max-height: 100%;
}

.exercise-instructions-panel {
    background: var(--card-background);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.exercise-instructions-panel h3 {
    color: var(--primary-dark);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.exercise-area {
    background: var(--card-background);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    overflow: auto;
}

.exercise-action-panel {
    background: var(--card-background);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.action-cards {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--board-border);
}

.action-card {
    background: var(--primary-light);
    border: 2px solid var(--primary-color);
    border-radius: 12px;
    padding: 0.75rem 1rem;
    cursor: grab;
    transition: all 0.2s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    min-width: 80px;
}

.action-card:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-sm);
}

.action-card:active {
    cursor: grabbing;
}

.action-card .icon {
    font-size: 1.5rem;
}

.action-card .label {
    font-size: 0.75rem;
    color: var(--text-color);
}

.action-card.loop-card {
    background: #F3E5F5;
    border-color: #9C27B0;
}

.sequence-area {
    flex: 1;
    background: var(--board-cell);
    border-radius: 12px;
    padding: 1rem;
    min-height: 150px;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-content: flex-start;
    overflow-y: auto;
}

.sequence-area.drop-zone {
    border: 2px dashed var(--primary-color);
}

.sequence-card {
    background: white;
    border: 2px solid var(--primary-dark);
    border-radius: 8px;
    padding: 0.5rem 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s;
}

.sequence-card:hover {
    background: #FEE2E2;
    border-color: var(--danger-color);
}

.sequence-card .remove {
    color: var(--danger-color);
    font-weight: bold;
}

.exercise-buttons {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.exercise-buttons .btn {
    flex: 1;
    min-width: 100px;
}

/* Exercise Types Specific Styles */

/* Classification Exercise */
.classification-area {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    width: 100%;
    max-width: 800px;
}

.items-container {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

.classify-item {
    background: var(--card-background);
    border: 2px solid var(--board-border);
    border-radius: 12px;
    padding: 1rem;
    cursor: grab;
    transition: all 0.2s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    min-width: 100px;
}

.classify-item:hover {
    transform: scale(1.05);
    border-color: var(--primary-color);
}

.classify-item .icon {
    font-size: 2.5rem;
}

.classify-item .label {
    font-size: 0.85rem;
    color: var(--text-color);
}

.drop-zones {
    display: flex;
    gap: 2rem;
    justify-content: center;
}

.drop-zone {
    background: var(--board-cell);
    border: 3px dashed var(--board-border);
    border-radius: 16px;
    padding: 1.5rem;
    min-width: 200px;
    min-height: 150px;
    text-align: center;
    transition: all 0.2s;
}

.drop-zone.robot-zone {
    border-color: var(--primary-color);
    background: var(--primary-light);
}

.drop-zone.object-zone {
    border-color: var(--secondary-dark);
    background: #FFFDE7;
}

.drop-zone.drag-over {
    border-style: solid;
    transform: scale(1.02);
}

.drop-zone h4 {
    margin-bottom: 1rem;
    color: var(--text-color);
}

.drop-zone .items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    min-height: 60px;
}

/* ============================================
   Memory Game - Diseño Moderno y Divertido
   ============================================ */
.memory-game-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    padding: 1rem;
}

.memory-game-header {
    display: flex;
    align-items: center;
    gap: 2rem;
    background: linear-gradient(135deg, var(--primary-light), rgba(255, 221, 89, 0.2));
    padding: 1rem 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
}

.memory-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
}

.memory-stat-icon {
    font-size: 1.8rem;
}

.memory-stat-value {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-dark);
}

.memory-stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.memory-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.8rem;
    max-width: 520px;
    width: 100%;
    padding: 1.5rem;
    background: linear-gradient(145deg, #f8f9fa 0%, #ffffff 100%);
    border-radius: 24px;
    box-shadow: 
        0 10px 40px rgba(0, 0, 0, 0.08),
        inset 0 -2px 0 rgba(0, 0, 0, 0.05);
}

/* Ajustar grid en móviles */
@media (max-width: 500px) {
    .memory-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.6rem;
        padding: 1rem;
    }
}

.memory-card {
    aspect-ratio: 1;
    perspective: 1200px;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}

.memory-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    transform-style: preserve-3d;
    border-radius: 18px;
}

.memory-card.flipped .memory-card-inner {
    transform: rotateY(180deg);
}

.memory-card-front,
.memory-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    border-radius: 18px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* Parte frontal (contenido - oculta inicialmente) */
.memory-card-front {
    background: linear-gradient(145deg, #ffffff 0%, #f0fdfa 100%);
    border: 3px solid var(--primary-color);
    box-shadow: 
        0 6px 20px rgba(0, 212, 170, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    /* CRÍTICO: El frente está rotado 180deg para estar oculto inicialmente */
    transform: rotateY(180deg);
}

.memory-card-front .card-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.5rem;
    text-align: center;
}

.memory-card-front .card-content .card-emoji {
    font-size: 2.8rem;
    line-height: 1;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
    animation: cardReveal 0.4s ease-out;
}

.memory-card-front .card-content .robot-icon {
    font-size: 3rem;
    line-height: 1;
}

.memory-card-front .card-content .card-label {
    font-size: 0.75rem;
    color: var(--text-color);
    font-weight: 700;
    max-width: 95%;
    line-height: 1.2;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
}

@keyframes cardReveal {
    from {
        transform: scale(0.5) rotateZ(-10deg);
        opacity: 0;
    }
    to {
        transform: scale(1) rotateZ(0);
        opacity: 1;
    }
}

/* Parte trasera (visible inicialmente - muestra 🤖) */
.memory-card-back {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-cyan) 100%);
    border: 3px solid rgba(255, 255, 255, 0.3);
    box-shadow: 
        0 8px 25px rgba(0, 212, 170, 0.35),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    /* Sin transformación - visible por defecto */
}

.memory-card-back::before {
    content: '🤖';
    font-size: 2.5rem;
    opacity: 0.9;
    animation: pulse 2s ease-in-out infinite;
}

.memory-card-back::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent 40%,
        rgba(255, 255, 255, 0.15) 50%,
        transparent 60%
    );
    animation: cardShine 3s ease-in-out infinite;
}

@keyframes cardShine {
    0%, 100% { transform: translateX(-100%) translateY(-100%); }
    50% { transform: translateX(100%) translateY(100%); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Estados de las tarjetas */
.memory-card.matched .memory-card-front {
    background: linear-gradient(145deg, #e8f5e9 0%, #c8e6c9 100%);
    border-color: var(--success-color);
    box-shadow: 
        0 6px 20px rgba(0, 210, 106, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.memory-card.matched::after {
    content: '✓';
    position: absolute;
    top: -8px;
    right: -8px;
    width: 28px;
    height: 28px;
    background: var(--success-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: bold;
    box-shadow: 0 3px 10px rgba(0, 210, 106, 0.4);
    z-index: 10;
    animation: checkPop 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes checkPop {
    0% { transform: scale(0) rotate(-180deg); }
    70% { transform: scale(1.2) rotate(10deg); }
    100% { transform: scale(1) rotate(0); }
}

.memory-card.matched {
    cursor: default;
    pointer-events: none;
}

.memory-card.wrong .memory-card-inner {
    animation: cardShake 0.5s ease-in-out;
}

@keyframes cardShake {
    0%, 100% { transform: rotateY(180deg) translateX(0); }
    20%, 60% { transform: rotateY(180deg) translateX(-8px); }
    40%, 80% { transform: rotateY(180deg) translateX(8px); }
}

/* Hover y touch */
.memory-card:not(.flipped):not(.matched):hover .memory-card-inner {
    transform: scale(1.08) translateY(-4px);
}

.memory-card:not(.flipped):not(.matched):hover .memory-card-back {
    box-shadow: 
        0 15px 40px rgba(0, 212, 170, 0.45),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.memory-card:not(.flipped):not(.matched):active .memory-card-inner {
    transform: scale(0.95);
}

/* Responsive para tablets */
@media (max-width: 768px) {
    .memory-card-front .card-content .card-emoji {
        font-size: 2.2rem;
    }
    .memory-card-front .card-content .card-label {
        font-size: 0.65rem;
    }
    .memory-card-back::before {
        font-size: 2rem;
    }
}

/* Quiz Exercise */
.quiz-area {
    width: 100%;
    max-width: 600px;
}

.quiz-question {
    background: var(--primary-light);
    border-radius: 16px;
    padding: 2rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.quiz-question h3 {
    font-size: 1.3rem;
    color: var(--text-color);
}

.quiz-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.quiz-option {
    background: var(--card-background);
    border: 2px solid var(--board-border);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    cursor: pointer;
    transition: all 0.2s;
    text-align: left;
    font-size: 1rem;
}

.quiz-option:hover {
    border-color: var(--primary-color);
    background: var(--primary-light);
}

.quiz-option.selected {
    border-color: var(--primary-dark);
    background: var(--primary-light);
}

.quiz-option.correct {
    border-color: var(--success-color);
    background: #E8F5E9;
}

.quiz-option.incorrect {
    border-color: var(--danger-color);
    background: #FFEBEE;
}

.quiz-result {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 12px;
    text-align: center;
    font-weight: 600;
}

/* Selection / Card-Selection Exercise */
.selection-area {
    width: 100%;
    max-width: 700px;
}

.selection-option {
    background: var(--card-background);
    border: 3px solid var(--board-border);
    border-radius: 16px;
    padding: 1.5rem 2rem;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    min-width: 130px;
    text-align: center;
    user-select: none;
}

.selection-option .icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 0.3rem;
}

.selection-option .label {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-color);
}

.selection-option .hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

.selection-option:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px) scale(1.03);
    box-shadow: 0 8px 25px rgba(0, 212, 170, 0.2);
}

.selection-option.correct {
    border-color: var(--success-color);
    background: #E8F5E9;
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(0, 210, 106, 0.3);
}

.selection-option.incorrect {
    border-color: var(--danger-color);
    background: #FFEBEE;
    animation: shake 0.4s ease;
}

/* Comparison Exercise */
.comparison-area {
    width: 100%;
    max-width: 650px;
    text-align: center;
}

.comparison-area h4 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.comparison-options {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.comparison-option {
    flex: 1;
    min-width: 200px;
    max-width: 280px;
    background: var(--card-background);
    border: 3px solid var(--board-border);
    border-radius: 16px;
    padding: 1.5rem;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.comparison-option h5 {
    color: var(--primary-dark);
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
}

.comparison-option p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
}

.comparison-option:hover {
    border-color: var(--primary-color);
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 212, 170, 0.15);
}

.comparison-option.correct {
    border-color: var(--success-color);
    background: #E8F5E9;
}

.comparison-option.incorrect {
    border-color: var(--danger-color);
    background: #FFEBEE;
    animation: shake 0.4s ease;
}

/* Assembly Exercise */
.assembly-area {
    width: 100%;
    max-width: 600px;
}

.robot-assembly {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
}

.assembly-slot {
    background: var(--card-background);
    border: 2px solid var(--board-border);
    border-radius: 14px;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    width: 100%;
    transition: all 0.2s;
}

.assembly-slot .slot-label {
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-color);
    min-width: 100px;
}

.assembly-slot .slot-area {
    flex: 1;
    background: var(--board-cell);
    border: 2px dashed var(--board-border);
    border-radius: 10px;
    padding: 0.8rem 1rem;
    min-height: 45px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
}

.assembly-slot .slot-area::before {
    content: attr(data-hint);
}

.assembly-slot .slot-area.filled::before {
    content: '';
}

.assembly-slot .slot-area:hover {
    border-color: var(--primary-color);
    background: var(--primary-light);
}

.assembly-slot .slot-area.correct {
    border-color: var(--success-color);
    border-style: solid;
    background: #E8F5E9;
}

.assembly-slot .slot-area.incorrect {
    border-color: var(--danger-color);
    animation: shake 0.3s;
}

/* Target Indicator (Sequence exercises) */
.target-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: #FFF8E1;
    padding: 0.8rem 1.2rem;
    border-radius: 10px;
    font-weight: 600;
    color: var(--text-color);
    border-left: 4px solid var(--secondary-color);
}

/* Result Display (Reverse Engineer) */
.result-display {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    text-align: center;
}

/* Creative Build sub-sections */
.base-objects, .parts-palette {
    margin-bottom: 1rem;
}

.base-objects h4, .parts-palette h4, .build-result h4 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
}

.build-result {
    margin-top: 1rem;
}

/* Matching sub-columns */
.left-column h4, .right-column h4 {
    text-align: center;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Step Label */
.step-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-color);
}

/* Free Slot (Conditional Free) */
.free-slot {
    background: #FFF3E0;
    border-color: #FFB74D;
    min-width: 150px;
}

.free-slot:hover {
    border-color: #FF9800;
}

/* Coming Soon / Placeholder */
p.placeholder {
    text-align: center;
    color: var(--text-muted);
    font-style: italic;
    padding: 1.5rem;
    font-size: 0.95rem;
}

.coming-soon {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--text-muted);
}

.coming-soon span {
    font-size: 4rem;
    display: block;
    margin-bottom: 1rem;
}

.coming-soon h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

/* Sequence Builder */
.sequence-builder {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.robot-preview {
    background: var(--board-cell);
    border-radius: 16px;
    padding: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
}

.robot-animation {
    font-size: 4rem;
    transition: all 0.5s;
}

/* Badge Earned Modal */
.badge-earned {
    text-align: center;
}

.badge-earned .badge-icon {
    font-size: 5rem;
    margin-bottom: 1rem;
    animation: bounce 0.5s ease infinite alternate;
}

@keyframes bounce {
    from {
        transform: translateY(0);
    }
    to {
        transform: translateY(-10px);
    }
}

.badge-earned h2 {
    color: var(--secondary-dark);
    margin-bottom: 0.5rem;
}

.badge-earned .badge-description {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Exercise Screen Responsive */
@media (max-width: 1024px) {
    .exercise-layout {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr auto;
    }
    
    .exercise-instructions-panel {
        order: 1;
    }
    
    .exercise-area {
        order: 2;
    }
    
    .exercise-action-panel {
        order: 3;
    }
}

@media (max-width: 768px) {
    .grades-grid,
    .sessions-grid,
    .proposals-grid,
    .exercises-grid {
        grid-template-columns: 1fr;
    }
    
    .drop-zones {
        flex-direction: column;
    }
    
    .memory-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ===== SCRATCH-STYLE BLOCK PROGRAMMING ===== */

/* Block Workspace Container */
.block-workspace {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
    background: #FFFFFF;
    border-radius: 16px;
    min-height: 300px;
    border: 1px solid #E2E8F0;
}

/* Block Palette - Where blocks are picked from */
.block-palette {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 1rem;
    background: white;
    border-radius: 12px;
    border: 2px dashed var(--primary-light);
    min-height: 80px;
}

.block-palette h4 {
    width: 100%;
    margin: 0 0 0.5rem 0;
    color: var(--text-muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Block Canvas - Where program is built */
.block-canvas {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1rem;
    background: white;
    border-radius: 12px;
    border: 3px solid var(--primary);
    min-height: 200px;
    position: relative;
    transition: all 0.3s ease;
}

.block-canvas.drag-over {
    border-color: var(--success);
    background: rgba(76, 175, 80, 0.1);
    box-shadow: 0 0 20px rgba(76, 175, 80, 0.3);
}

.block-canvas h4 {
    margin: 0 0 0.5rem 0;
    color: var(--text-muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.block-canvas-empty {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-style: italic;
    border: 2px dashed #ddd;
    border-radius: 8px;
    margin-top: 0.5rem;
}

.block-program {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
}

/* Scratch-Style Blocks */
.scratch-block {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.75rem 1.2rem;
    border-radius: 10px;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: grab;
    transition: all 0.2s ease;
    box-shadow: 
        0 3px 6px rgba(0,0,0,0.18),
        inset 0 2px 0 rgba(255,255,255,0.35),
        inset 0 -2px 0 rgba(0,0,0,0.1);
    border: none;
    position: relative;
    user-select: none;
    /* Forma tipo Scratch con muesca */
    clip-path: polygon(
        0 5px, 5px 5px, 5px 0, 18px 0, 18px 5px, 
        100% 5px, 100% calc(100% - 5px), 
        18px calc(100% - 5px), 18px 100%, 5px 100%, 5px calc(100% - 5px), 
        0 calc(100% - 5px)
    );
    min-height: 48px;
}

.scratch-block:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2), inset 0 1px 0 rgba(255,255,255,0.3);
}

.scratch-block:active,
.scratch-block.dragging {
    cursor: grabbing;
    opacity: 0.8;
    transform: scale(1.05);
    z-index: 100;
}

.scratch-block .block-icon {
    font-size: 1.2rem;
}

.scratch-block .block-label {
    white-space: nowrap;
}

/* Block Categories - Movement */
.scratch-block.movement {
    background: linear-gradient(135deg, #4C97FF 0%, #3373CC 100%);
    color: white;
}

.scratch-block.movement:hover {
    background: linear-gradient(135deg, #5AA3FF 0%, #4080DD 100%);
}

/* Block Categories - Relative Movement */
.scratch-block.relative {
    background: linear-gradient(135deg, #9966FF 0%, #774DCB 100%);
    color: white;
}

.scratch-block.relative:hover {
    background: linear-gradient(135deg, #AA77FF 0%, #8855DD 100%);
}

/* Block Categories - Action */
.scratch-block.action {
    background: linear-gradient(135deg, #FFAB19 0%, #CF8B17 100%);
    color: white;
}

.scratch-block.action:hover {
    background: linear-gradient(135deg, #FFB833 0%, #DD9922 100%);
}

/* Block Categories - Control */
.scratch-block.control {
    background: linear-gradient(135deg, #FFBF00 0%, #E6AC00 100%);
    color: #333;
}

.scratch-block.control:hover {
    background: linear-gradient(135deg, #FFCC33 0%, #FFB800 100%);
}

/* Block Categories - Loop */
.scratch-block.loop {
    background: linear-gradient(135deg, #FF8C1A 0%, #DB6E00 100%);
    color: white;
}

/* Block in Program Area */
.scratch-block.in-program {
    width: 100%;
    justify-content: flex-start;
    border-radius: 8px;
    position: relative;
    padding: 0.75rem 2.5rem 0.75rem 1rem;
    margin-bottom: 2px;
    clip-path: polygon(
        0% 0%, 
        10px 0%, 
        15px 6px, 
        35px 6px, 
        40px 0%, 
        100% 0%, 
        100% 100%,
        40px 100%,
        35px calc(100% + 6px),
        15px calc(100% + 6px),
        10px 100%,
        0% 100%
    );
    animation: blockSlideIn 0.25s ease-out;
}

@keyframes blockSlideIn {
    0% {
        opacity: 0;
        transform: translateX(-20px) scale(0.9);
    }
    100% {
        opacity: 1;
        transform: translateX(0) scale(1);
    }
}

.scratch-block.in-program:last-child {
    clip-path: polygon(
        0% 0%, 
        10px 0%, 
        15px 6px, 
        35px 6px, 
        40px 0%, 
        100% 0%, 
        100% 100%,
        0% 100%
    );
}

.scratch-block.in-program:first-child {
    clip-path: polygon(
        0% 0%, 
        100% 0%, 
        100% 100%,
        40px 100%,
        35px calc(100% + 6px),
        15px calc(100% + 6px),
        10px 100%,
        0% 100%
    );
}

.scratch-block.in-program:first-child:last-child {
    clip-path: polygon(
        0% 0%, 
        100% 0%, 
        100% 100%,
        0% 100%
    );
    border-radius: 8px;
}

/* Number indicator on left side */
.scratch-block.in-program::before {
    content: attr(data-index);
    position: absolute;
    left: -28px;
    top: 50%;
    transform: translateY(-50%);
    width: 22px;
    height: 22px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 700;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

/* Remove button on hover */
.scratch-block.in-program::after {
    content: '×';
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.4rem;
    font-weight: 700;
    opacity: 0;
    color: white;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
    transition: opacity 0.2s ease, transform 0.2s ease;
    cursor: pointer;
}

.scratch-block.in-program:hover::after {
    opacity: 0.8;
}

.scratch-block.in-program:hover::after:hover {
    opacity: 1;
    transform: translateY(-50%) scale(1.2);
}

/* Block Remove Button */
.block-remove {
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: rgba(255,255,255,0.3);
    border: none;
    color: white;
    font-size: 1rem;
    line-height: 1;
    cursor: pointer;
    opacity: 0;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.scratch-block.in-program:hover .block-remove {
    opacity: 0.8;
}

.block-remove:hover {
    background: rgba(255,0,0,0.5);
    opacity: 1 !important;
}

/* Block Drop Zone */
.block-drop-zone {
    min-height: 120px;
    border: 3px dashed var(--primary-light);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 1rem;
    color: var(--text-muted);
    transition: all 0.3s ease;
    background: linear-gradient(135deg, #f8fffe 0%, #f0f9f8 100%);
    position: relative;
}

.block-drop-zone:empty::before {
    content: '🧩 Arrastra bloques aquí para crear tu programa';
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    font-style: italic;
    color: var(--text-muted);
    text-align: center;
    padding: 2rem;
}

.block-drop-zone.drag-over {
    border-color: var(--primary-dark);
    border-style: solid;
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.1) 0%, rgba(78, 205, 196, 0.15) 100%);
    box-shadow: 
        0 0 0 4px rgba(0, 212, 170, 0.2),
        inset 0 0 20px rgba(0, 212, 170, 0.1);
    transform: scale(1.01);
}

.block-drop-zone.drag-over::after {
    content: '¡Suelta aquí!';
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.85rem;
    animation: bounceIn 0.3s ease;
}

@keyframes bounceIn {
    0% { transform: translateX(-50%) scale(0); }
    50% { transform: translateX(-50%) scale(1.1); }
    100% { transform: translateX(-50%) scale(1); }
}

/* Block Controls */
.block-controls {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid #eee;
}

.block-controls button {
    flex: 1;
    padding: 0.6rem 1rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-run-blocks {
    background: var(--success);
    color: white;
    border: none;
}

.btn-run-blocks:hover {
    background: #45a049;
    transform: translateY(-1px);
}

.btn-clear-blocks {
    background: #f0f0f0;
    color: var(--text-muted);
    border: 1px solid #ddd;
}

.btn-clear-blocks:hover {
    background: #e0e0e0;
    color: var(--danger);
    border-color: var(--danger);
}

/* Block Animation */
@keyframes blockPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

.scratch-block.executing {
    animation: blockPulse 0.5s ease infinite;
    box-shadow: 0 0 15px rgba(76, 175, 80, 0.6);
}

/* Dragging State */
.scratch-block.dragging {
    position: fixed;
    pointer-events: none;
    z-index: 1000;
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
}

/* Block Workspace Responsive */
@media (max-width: 768px) {
    .block-workspace {
        padding: 0.75rem;
    }
    
    .block-palette {
        padding: 0.75rem;
    }
    
    .scratch-block {
        padding: 0.5rem 0.75rem;
        font-size: 0.85rem;
    }
    
    .scratch-block .block-icon {
        font-size: 1rem;
    }
}

/* ============================================
   ROLE-BASED DASHBOARDS
   ============================================ */

/* Role Badge */
.role-badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-left: 0.5rem;
}

.role-admin {
    background: #FFE0E0;
    color: #D32F2F;
}

.role-teacher {
    background: #E3F2FD;
    color: #1976D2;
}

.role-student {
    background: #E8F5E9;
    color: #388E3C;
}

/* Dashboard Content */
.dashboard-content {
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.dashboard-welcome {
    text-align: center;
    margin-bottom: 2rem;
    padding: 2rem;
    background: #FFFFFF;
    border-radius: 16px;
    border: 1px solid var(--board-border);
}

.dashboard-welcome h2 {
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.dashboard-welcome p {
    color: var(--text-muted);
}

/* Stats Cards */
.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: #FFFFFF;
    border-radius: 16px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--board-border);
    transition: all 0.3s;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light);
    border-radius: 12px;
}

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark-color);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Dashboard Sections */
.dashboard-sections {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.dashboard-section {
    background: #FFFFFF;
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--board-border);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--board-border);
}

.section-header h2 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--dark-color);
    font-size: 1.3rem;
}

.section-header h2 i {
    color: var(--primary-color);
}

/* Filters */
.users-filters {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.search-input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 2px solid var(--board-border);
    border-radius: 10px;
    font-size: 0.95rem;
    transition: all 0.3s;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.filter-select {
    padding: 0.75rem 1rem;
    border: 2px solid var(--board-border);
    border-radius: 10px;
    font-size: 0.95rem;
    background: #FFFFFF;
    cursor: pointer;
    min-width: 180px;
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Data Tables */
.users-table-container,
.students-progress-container {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.data-table th {
    background: var(--primary-light);
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--dark-color);
    border-bottom: 2px solid var(--primary-color);
}

.data-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--board-border);
    vertical-align: middle;
}

.data-table tbody tr:hover {
    background: #FAFAFA;
}

.data-table .status-active {
    color: var(--success-color);
    font-weight: 500;
}

.data-table .status-inactive {
    color: var(--danger-color);
    font-weight: 500;
}

.data-table .actions {
    display: flex;
    gap: 0.5rem;
}

.data-table .btn-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.data-table .btn-icon.edit {
    background: #E3F2FD;
    color: #1976D2;
}

.data-table .btn-icon.edit:hover {
    background: #1976D2;
    color: white;
}

.data-table .btn-icon.delete {
    background: #FFEBEE;
    color: #D32F2F;
}

.data-table .btn-icon.delete:hover {
    background: #D32F2F;
    color: white;
}

.data-table .btn-icon.view {
    background: #E8F5E9;
    color: #388E3C;
}

.data-table .btn-icon.view:hover {
    background: #388E3C;
    color: white;
}

/* Classes Grid */
.classes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.class-card {
    background: #FFFFFF;
    border: 2px solid var(--board-border);
    border-radius: 16px;
    padding: 1.5rem;
    transition: all 0.3s;
    cursor: pointer;
}

.class-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.class-card h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.class-card h3 i {
    color: var(--primary-color);
}

.class-card .class-info {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.class-card .class-stats {
    display: flex;
    gap: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--board-border);
}

.class-card .class-stat {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.class-card .class-stat i {
    color: var(--primary-color);
}

/* Quick Actions */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.quick-action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 1.5rem;
    background: #FFFFFF;
    border: 2px solid var(--board-border);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s;
}

.quick-action-btn:hover {
    border-color: var(--primary-color);
    background: var(--primary-light);
}

.quick-action-btn i {
    font-size: 2rem;
    color: var(--primary-color);
}

.quick-action-btn span {
    font-size: 0.9rem;
    color: var(--dark-color);
    font-weight: 500;
}

/* Form Modal */
.form-modal {
    max-width: 500px;
    width: 90%;
}

.form-modal h2 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    color: var(--dark-color);
}

.form-modal h2 i {
    color: var(--primary-color);
}

.form-modal .form-group {
    margin-bottom: 1rem;
}

.form-modal .form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--dark-color);
}

.form-modal .form-group input,
.form-modal .form-group select,
.form-modal .form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--board-border);
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s;
}

.form-modal .form-group input:focus,
.form-modal .form-group select:focus,
.form-modal .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-modal .form-group textarea {
    min-height: 100px;
    resize: vertical;
}

.form-modal .modal-buttons {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--board-border);
}

/* Detail Modal */
.detail-modal {
    max-width: 600px;
    width: 90%;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--board-border);
}

.modal-header h2 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--dark-color);
}

.modal-header h2 i {
    color: var(--primary-color);
}

.student-stats {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1.5rem;
}

.mini-stat {
    text-align: center;
}

.mini-stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.mini-stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.student-badges-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: #FAFAFA;
    border-radius: 12px;
    min-height: 60px;
}

.badge-item {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.5rem 0.75rem;
    background: #FFFFFF;
    border: 1px solid var(--board-border);
    border-radius: 20px;
    font-size: 0.85rem;
}

.student-activity-log {
    max-height: 200px;
    overflow-y: auto;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    border-bottom: 1px solid var(--board-border);
}

.activity-item:last-child {
    border-bottom: none;
}

.activity-item i {
    color: var(--primary-color);
    width: 24px;
}

.activity-item .activity-text {
    flex: 1;
    font-size: 0.9rem;
}

.activity-item .activity-time {
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* Responsive */
@media (max-width: 768px) {
    .dashboard-content {
        padding: 1rem;
    }
    
    .dashboard-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stat-card {
        padding: 1rem;
    }
    
    .stat-card i {
        font-size: 1.5rem;
        width: 40px;
        height: 40px;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .section-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    
    .users-filters {
        flex-direction: column;
    }
    
    .filter-select {
        width: 100%;
    }
    
    .data-table {
        font-size: 0.85rem;
    }
    
    .data-table th,
    .data-table td {
        padding: 0.75rem 0.5rem;
    }
    
    .quick-actions {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .quick-action-btn {
        padding: 1rem;
    }
    
    .quick-action-btn i {
        font-size: 1.5rem;
    }
}

/* ============================================
   Touch Drag & Drop - Mejoras Táctiles
   ============================================ */

/* Elementos arrastrables base */
[data-draggable="true"] {
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
    cursor: grab;
}

/* Estado de holding (antes de arrastrar) */
.touch-holding {
    transform: scale(1.02);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

/* Elemento mientras se arrastra */
.dragging {
    opacity: 0.35 !important;
    transform: scale(0.95) !important;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

/* Clon visual durante touch drag */
.touch-drag-clone {
    border-radius: 16px !important;
    background: white !important;
    border: 2px solid var(--primary-color) !important;
    animation: cloneAppear 0.15s ease-out;
}

.touch-drag-clone.over-dropzone {
    box-shadow: 0 20px 60px rgba(0, 212, 170, 0.4), 0 8px 20px rgba(0, 0, 0, 0.2) !important;
    border-color: var(--primary-dark) !important;
}

@keyframes cloneAppear {
    from {
        opacity: 0.5;
        transform: translate3d(var(--start-x, 0), var(--start-y, 0), 0) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translate3d(var(--start-x, 0), var(--start-y, 0), 0) scale(1.08);
    }
}

/* Zona de drop - estado normal con hint */
.drop-hint-active {
    border-color: var(--primary-color) !important;
    animation: dropHintPulse 1.5s ease-in-out infinite;
}

@keyframes dropHintPulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(0, 212, 170, 0.2);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(0, 212, 170, 0);
    }
}

/* Zona de drop activa (elemento encima) */
.drag-over {
    border-style: solid !important;
    border-color: var(--primary-dark) !important;
    background: linear-gradient(135deg, var(--primary-light), rgba(0, 212, 170, 0.15)) !important;
    transform: scale(1.03);
    box-shadow: 
        0 0 30px rgba(0, 212, 170, 0.4),
        inset 0 0 20px rgba(0, 212, 170, 0.1);
    transition: all 0.2s ease;
}

/* Items clasificables con mejor touch target */
.classify-item {
    min-height: 70px;
    min-width: 70px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0.85rem;
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
    cursor: grab;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    border: 2px solid var(--board-border);
    border-radius: 14px;
    background: var(--card-background);
}

.classify-item:active {
    cursor: grabbing;
}

.classify-item.touch-holding {
    border-color: var(--primary-color);
    background: var(--primary-light);
}

/* Action cards con mejor touch target */
.action-card {
    min-height: 70px;
    min-width: 85px;
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.action-card.touch-holding {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
    border-color: var(--primary-dark);
}

/* Sequence cards táctiles */
.sequence-card {
    min-height: 50px;
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
}

/* Animación de shake para errores */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 50%, 90% { transform: translateX(-6px); }
    30%, 70% { transform: translateX(6px); }
}

.shake {
    animation: shake 0.5s ease-in-out;
    border-color: var(--danger-color) !important;
}

/* ============================================
   Mobile Drag & Drop Improvements
   ============================================ */

@media (max-width: 768px) {
    /* Elementos más grandes para touch */
    .classify-item {
        min-height: 80px;
        min-width: 80px;
        padding: 1rem;
    }
    
    .classify-item .icon {
        font-size: 2.8rem;
    }
    
    .classify-item .label {
        font-size: 0.9rem;
        font-weight: 500;
    }
    
    .action-card {
        min-height: 75px;
        min-width: 90px;
        padding: 0.85rem 1rem;
    }
    
    .action-card .icon {
        font-size: 1.8rem;
    }
    
    .action-card .label {
        font-size: 0.85rem;
    }
    
    /* Drop zones más grandes */
    .drop-zone {
        min-height: 180px;
        padding: 1.5rem;
    }
    
    .drop-zone h4 {
        font-size: 1.1rem;
    }
    
    /* Sequence area más accesible */
    .sequence-area {
        min-height: 120px;
        padding: 1.25rem;
    }
    
    .sequence-card {
        min-height: 55px;
        padding: 0.6rem 0.9rem;
        font-size: 0.9rem;
    }
    
    /* Items container con mejor espacio */
    .items-container {
        gap: 0.85rem;
        padding: 0.5rem;
    }
    
    /* Drop zones en columna en móvil */
    .drop-zones {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .drop-zones .drop-zone {
        width: 100%;
    }
    
    /* Feedback visual más prominente en mobile */
    .drag-over {
        transform: scale(1.02);
        border-width: 3px;
    }
    
    .touch-drag-clone {
        font-size: 1.1em;
    }
}

@media (max-width: 480px) {
    .classify-item {
        min-height: 75px;
        min-width: 75px;
    }
    
    .classify-item .icon {
        font-size: 2.5rem;
    }
    
    .action-card {
        min-height: 70px;
        min-width: 80px;
    }
    
    .action-card .icon {
        font-size: 1.6rem;
    }
    
    .items-container {
        gap: 0.65rem;
    }
    
    /* Action cards en horizontal compacto */
    .action-cards {
        gap: 0.4rem;
        padding: 0.75rem 0.5rem;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        flex-wrap: nowrap;
        justify-content: flex-start;
    }
    
    .action-cards::-webkit-scrollbar {
        display: none;
    }
}

/* ============================================
   Scratch Blocks Touch Improvements
   ============================================ */

.scratch-block {
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
    min-height: 50px;
}

.scratch-block.touch-holding {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

.block-drop-zone {
    min-height: 150px;
    transition: all 0.2s ease;
}

.block-drop-zone.drag-over {
    background: linear-gradient(135deg, var(--primary-light), rgba(0, 212, 170, 0.1));
}

@media (max-width: 768px) {
    .scratch-block {
        min-height: 55px;
        padding: 0.75rem 1rem;
    }
    
    .scratch-block .block-icon {
        font-size: 1.5rem;
    }
    
    .block-drop-zone {
        min-height: 180px;
    }
    
    #block-palette {
        gap: 0.5rem;
        padding: 0.75rem;
    }
}

/* ============================================
   Modal Animations - Mejoras
   ============================================ */

.modal {
    transition: opacity 0.25s ease, visibility 0.25s ease;
}

.modal.active {
    animation: modalFadeIn 0.3s ease forwards;
}

.modal.closing {
    animation: modalFadeOut 0.2s ease forwards;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes modalFadeOut {
    from {
        opacity: 1;
    }
    to {
        opacity: 0;
    }
}

.modal-content {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal.active .modal-content {
    animation: modalContentIn 0.35s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.modal.closing .modal-content {
    animation: modalContentOut 0.2s ease forwards;
}

@keyframes modalContentIn {
    from {
        transform: scale(0.9) translateY(20px);
        opacity: 0;
    }
    to {
        transform: scale(1) translateY(0);
        opacity: 1;
    }
}

@keyframes modalContentOut {
    from {
        transform: scale(1) translateY(0);
        opacity: 1;
    }
    to {
        transform: scale(0.9) translateY(20px);
        opacity: 0;
    }
}

/* Victory modal estrellas */
.modal.victory .stars .fa-star {
    color: #FFDD59;
    font-size: 2.5rem;
    margin: 0 0.3rem;
    filter: drop-shadow(0 2px 4px rgba(255, 193, 7, 0.4));
}

.modal.victory .stars .fa-star.empty {
    color: #ddd;
    filter: none;
}

/* ============================================
   Block Programming - Mejoras Táctiles
   ============================================ */

.scratch-block {
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
    cursor: grab;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.scratch-block:active {
    cursor: grabbing;
}

.scratch-block.dragging {
    opacity: 0.5;
    transform: scale(0.95);
}

#block-drop-zone {
    min-height: 200px;
    transition: all 0.25s ease;
}

#block-drop-zone.drag-over {
    background: rgba(0, 212, 170, 0.15);
    border-color: var(--primary-color);
    box-shadow: inset 0 0 20px rgba(0, 212, 170, 0.2);
}

/* ============================================
   Sequence Builder - Mejoras Táctiles
   ============================================ */

.action-card {
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
    min-height: 70px;
    min-width: 70px;
}

.action-card:active {
    transform: scale(0.95);
}

#sequence-area {
    min-height: 100px;
    transition: all 0.25s ease;
}

#sequence-area.drag-over {
    background: var(--primary-light);
    border-color: var(--primary-color);
}

.sequence-card {
    animation: slideIn 0.25s ease forwards;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   Game Board - Mejoras de Transición
   ============================================ */

#game-board {
    transition: opacity 0.3s ease, transform 0.3s ease;
}

/* Robot smooth movement */
#game-robot {
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

#game-robot.moving {
    filter: drop-shadow(0 4px 8px rgba(0, 212, 170, 0.4));
}

/* ============================================
   Responsive Touch - Móviles y Tablets
   ============================================ */

@media (max-width: 768px) {
    /* Aumentar áreas táctiles */
    .classify-item {
        min-height: 70px;
        min-width: 70px;
        padding: 1rem;
    }
    
    .action-card {
        min-height: 80px;
        min-width: 80px;
    }
    
    /* Bloques de scratch para móvil */
    .scratch-block {
        padding: 1rem 1.25rem;
        font-size: 0.95rem;
        min-height: 50px;
        touch-action: none;
    }
    
    .scratch-block.in-program {
        padding: 0.85rem 2.5rem 0.85rem 0.8rem;
        margin-left: 30px;
    }
    
    .scratch-block.in-program::before {
        left: -25px;
        width: 20px;
        height: 20px;
        font-size: 0.65rem;
    }
    
    .scratch-block.in-program::after {
        right: 8px;
        font-size: 1.3rem;
        opacity: 0.6;
    }
    
    /* Drop zone para bloques */
    .block-drop-zone {
        min-height: 100px;
        padding: 0.8rem;
        padding-left: 2.5rem;
    }
    
    .block-drop-zone:empty::before {
        font-size: 0.9rem;
        padding: 1rem;
    }
    
    /* Mejor espaciado en zonas de drop */
    .drop-zone {
        min-height: 180px;
        padding: 1.5rem;
    }
    
    .drop-zone .items {
        gap: 0.75rem;
    }
    
    /* Botones más grandes para touch */
    .btn {
        min-height: 48px;
        padding: 0.875rem 1.5rem;
    }
    
    /* Asegurar que los elementos no se peguen */
    .command-btn {
        margin: 0.25rem;
    }
    
    /* Controles de juego para móvil */
    .game-controls {
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .game-controls .btn {
        flex: 1 1 45%;
        min-width: 120px;
    }
}

@media (max-width: 576px) {
    .scratch-block {
        font-size: 0.9rem;
        padding: 0.875rem 1rem;
    }
    
    .scratch-block.in-program {
        margin-left: 26px;
    }
    
    .scratch-block.in-program::before {
        left: -22px;
        width: 18px;
        height: 18px;
        font-size: 0.6rem;
    }
    
    .block-drop-zone {
        padding-left: 2rem;
    }
    
    .block-drop-zone:empty::before {
        content: '🧩 Arrastra bloques aquí';
        font-size: 0.85rem;
    }
}

/* Prevenir selección de texto durante drag */
.no-select {
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

/* Confetti animation fix */
@keyframes confetti-fall {
    0% {
        transform: translateY(0) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(100vh) rotate(720deg);
        opacity: 0;
    }
}

.confetti {
    animation: confetti-fall 3s ease-out forwards;
}

/* Mejora de rendimiento para animaciones */
.memory-card,
.scratch-block,
.classify-item,
.action-card,
#game-robot {
    will-change: transform;
}

/* ============================================
   New Exercise Types - Styles
   ============================================ */

/* Shared exercise element styles */
.keyword {
    background: linear-gradient(135deg, #6c5ce7, #a855f7);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.9rem;
    display: inline-block;
}

.big-icon { font-size: 4rem; display: block; text-align: center; margin: 1rem 0; }
.text-input { width: 100%; padding: 0.8rem; border: 2px solid var(--board-border); border-radius: 12px; font-size: 1rem; font-family: 'Nunito', sans-serif; }
.text-input:focus { border-color: var(--primary-color); outline: none; }

/* Drag Action */
.drag-action-area { display: flex; align-items: center; justify-content: center; gap: 2rem; padding: 2rem; flex-wrap: wrap; }
.drag-source { text-align: center; }
.action-card-drag { background: linear-gradient(135deg, #FFDD59, #FFC107); padding: 1.5rem 2rem; border-radius: 16px; cursor: grab; font-size: 1.2rem; display: flex; flex-direction: column; align-items: center; gap: 0.5rem; box-shadow: 0 4px 15px rgba(255, 193, 7, 0.3); transition: transform 0.2s; }
.action-card-drag:hover { transform: scale(1.08); }
.action-card-drag .icon { font-size: 2.5rem; }
.drag-arrow { font-size: 2.5rem; }
.drag-target-zone { background: var(--board-cell); border: 3px dashed var(--primary-color); border-radius: 20px; padding: 2rem; min-width: 180px; min-height: 180px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.5rem; transition: all 0.3s; }
.drag-target-zone.drag-over { border-style: solid; background: var(--primary-light); transform: scale(1.05); }
.target-robot { font-size: 4rem; transition: all 0.3s; }
.target-robot.active { animation: pulse 0.5s ease; }

/* Reverse Engineer */
.reverse-engineer-area { width: 100%; }
.shown-result { background: var(--primary-light); border-radius: 16px; padding: 1.5rem; margin-bottom: 1rem; }
.path-visual { display: flex; align-items: center; justify-content: center; gap: 0.3rem; flex-wrap: wrap; }
.path-step { font-size: 2rem; background: white; padding: 0.5rem; border-radius: 10px; box-shadow: var(--shadow-sm); }
.path-arrow { font-size: 1.2rem; color: var(--text-muted); }

/* Loop Intro */
.loop-intro-area { width: 100%; max-width: 600px; }
.loop-explanation { background: var(--primary-light); border-radius: 16px; padding: 1.5rem; margin-bottom: 1.5rem; }
.loop-demo { display: flex; align-items: center; justify-content: center; gap: 1.5rem; flex-wrap: wrap; margin-top: 1rem; }
.without-loop, .with-loop { background: white; border-radius: 12px; padding: 1rem; min-width: 150px; text-align: center; }
.steps-list { display: flex; gap: 0.3rem; justify-content: center; flex-wrap: wrap; }
.step-item { font-size: 1.8rem; }
.vs-symbol { font-size: 1.5rem; font-weight: 800; color: var(--primary-dark); }
.loop-block-demo { background: linear-gradient(135deg, #6c5ce7, #a855f7); color: white; border-radius: 12px; padding: 1rem; text-align: center; }
.loop-header-demo { display: block; font-weight: 700; margin-bottom: 0.5rem; }
.loop-body-demo { display: block; background: rgba(255,255,255,0.2); border-radius: 8px; padding: 0.5rem; }

/* Loop Fix / Fix Options */
.loop-fix-area { width: 100%; max-width: 600px; }
.wrong-version { background: #FFEBEE; border-radius: 12px; padding: 1rem; margin-bottom: 1.5rem; }
.algo-display { padding: 0.8rem; border-radius: 8px; font-size: 1rem; word-break: break-word; }
.algo-display.wrong { background: #FFCDD2; }
.fix-options { display: flex; flex-direction: column; gap: 1rem; }
.fix-option { background: var(--card-background); border: 2px solid var(--board-border); border-radius: 12px; padding: 1rem; cursor: pointer; transition: all 0.2s; }
.fix-option:hover { border-color: var(--primary-color); transform: translateY(-2px); }
.fix-option.correct { border-color: var(--success-color); background: #E8F5E9; }
.fix-option.incorrect { border-color: var(--danger-color); background: #FFEBEE; }

/* Calc / Nested Loop Calc */
.calc-area { width: 100%; max-width: 500px; text-align: center; }
.calc-visual { background: var(--primary-light); border-radius: 16px; padding: 1.5rem; margin-bottom: 1.5rem; }
.grid-visual { display: flex; flex-direction: column; gap: 0.5rem; align-items: center; margin-bottom: 1rem; }
.grid-row { font-size: 1.5rem; letter-spacing: 0.5rem; }
.calc-options { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; margin-top: 1rem; }
.calc-option { background: var(--card-background); border: 2px solid var(--board-border); border-radius: 12px; padding: 1rem 2rem; cursor: pointer; font-size: 1.5rem; font-weight: 700; transition: all 0.2s; min-width: 60px; }
.calc-option:hover { border-color: var(--primary-color); transform: scale(1.05); }
.calc-option.correct { border-color: var(--success-color); background: #E8F5E9; color: var(--success-color); }
.calc-option.incorrect { border-color: var(--danger-color); background: #FFEBEE; }

/* Multi Selection */
.multi-selection-area { width: 100%; max-width: 600px; }
.selection-hint { font-size: 1.1rem; font-weight: 600; margin-bottom: 1rem; text-align: center; color: var(--text-color); }
.multi-options-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.multi-option { background: var(--card-background); border: 2px solid var(--board-border); border-radius: 12px; padding: 1rem; cursor: pointer; display: flex; flex-direction: column; align-items: center; gap: 0.5rem; transition: all 0.2s; }
.multi-option:hover { border-color: var(--primary-color); }
.multi-option.selected { border-color: var(--primary-dark); background: var(--primary-light); box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.2); }
.multi-option.incorrect { border-color: var(--danger-color); background: #FFEBEE; animation: shake 0.4s; }
.multi-option .icon { font-size: 2.5rem; }

/* Creative Build */
.creative-build-area { width: 100%; max-width: 600px; }
.base-grid, .parts-grid, .commands-grid { display: flex; flex-wrap: wrap; gap: 0.8rem; margin: 0.5rem 0 1rem; }
.base-option, .part-option, .part-toggle, .cmd-toggle { background: var(--card-background); border: 2px solid var(--board-border); border-radius: 12px; padding: 0.8rem 1rem; cursor: pointer; display: flex; align-items: center; gap: 0.5rem; transition: all 0.2s; }
.base-option:hover, .part-option:hover, .part-toggle:hover, .cmd-toggle:hover { border-color: var(--primary-color); }
.base-option.selected, .part-option.selected, .part-toggle.selected, .cmd-toggle.selected { border-color: var(--primary-dark); background: var(--primary-light); }
.robot-build-zone { background: var(--board-cell); border-radius: 16px; padding: 1.5rem; min-height: 80px; display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; justify-content: center; }
.build-part { font-size: 2.5rem; animation: popIn 0.3s ease; }

/* Creative Sequence */
.creative-sequence-area { width: 100%; max-width: 500px; }
.robot-name-input { margin-bottom: 1rem; }
.robot-name-input label { display: block; margin-bottom: 0.3rem; font-weight: 600; }
.functions-area { margin-bottom: 1rem; }
.function-item { background: var(--card-background); border: 1px solid var(--board-border); border-radius: 8px; padding: 0.5rem 1rem; margin-bottom: 0.5rem; display: flex; justify-content: space-between; align-items: center; }
.remove-func { cursor: pointer; color: var(--danger-color); font-weight: 700; }
.add-function { display: flex; gap: 0.5rem; }
.add-function .text-input { flex: 1; }

/* Labeling */
.labeling-area { width: 100%; max-width: 600px; display: flex; flex-direction: column; gap: 1.5rem; }
.labeling-robot { text-align: center; }
.robot-display { font-size: 6rem; margin-bottom: 1rem; }
.label-slots { display: flex; flex-direction: column; gap: 0.5rem; }
.label-slot { display: flex; align-items: center; gap: 1rem; background: var(--card-background); padding: 0.5rem 1rem; border-radius: 10px; }
.position-label { font-size: 0.85rem; min-width: 100px; }
.label-drop { background: var(--board-cell); border: 2px dashed var(--board-border); border-radius: 8px; padding: 0.5rem 1rem; min-width: 80px; text-align: center; cursor: pointer; transition: all 0.2s; }
.label-drop.correct { border-color: var(--success-color); border-style: solid; background: #E8F5E9; }
.label-drop.incorrect { border-color: var(--danger-color); animation: shake 0.3s; }
.label-options { display: flex; flex-wrap: wrap; gap: 0.5rem; justify-content: center; }
.label-tag { background: linear-gradient(135deg, #54A0FF, #2E86DE); color: white; padding: 0.5rem 1rem; border-radius: 10px; cursor: grab; font-weight: 600; transition: all 0.2s; }
.label-tag:hover { transform: scale(1.05); }
.label-tag.active { box-shadow: 0 0 0 3px rgba(84, 160, 255, 0.4); }

/* Matching */
.matching-area { display: flex; gap: 2rem; justify-content: center; flex-wrap: wrap; width: 100%; }
.matching-column { display: flex; flex-direction: column; gap: 0.8rem; }
.match-item { background: var(--card-background); border: 2px solid var(--board-border); border-radius: 12px; padding: 1rem; cursor: pointer; transition: all 0.2s; text-align: center; min-width: 140px; }
.match-item:hover { border-color: var(--primary-color); }
.match-item.selected { border-color: var(--primary-dark); background: var(--primary-light); box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.3); }
.match-item.matched { border-color: var(--success-color); background: #E8F5E9; opacity: 0.8; cursor: default; }
.match-item.incorrect { border-color: var(--danger-color); animation: shake 0.3s; }

/* Fix Missing */
.fix-missing-area { width: 100%; max-width: 500px; }
.problem-display { background: #FFF3E0; border-radius: 12px; padding: 1.5rem; margin-bottom: 1.5rem; text-align: center; }
.missing-options h4 { margin-bottom: 1rem; text-align: center; }
.missing-option { background: var(--card-background); border: 2px solid var(--board-border); border-radius: 12px; padding: 1rem; cursor: pointer; display: flex; flex-direction: column; align-items: center; gap: 0.5rem; transition: all 0.2s; }
.missing-option:hover { border-color: var(--primary-color); transform: translateY(-2px); }
.missing-option.correct { border-color: var(--success-color); background: #E8F5E9; }
.missing-option.incorrect { border-color: var(--danger-color); background: #FFEBEE; }
.missing-option .icon { font-size: 2rem; }
.options-grid { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* Pattern Exercises */
.pattern-area, .pattern-fix-area, .pattern-completion-area, .pattern-builder-area { width: 100%; max-width: 600px; text-align: center; }
.pattern-display { display: flex; gap: 0.5rem; justify-content: center; align-items: center; flex-wrap: wrap; margin: 1.5rem 0; }
.pattern-item { font-size: 2.5rem; background: white; padding: 0.5rem; border-radius: 12px; box-shadow: var(--shadow-sm); min-width: 50px; transition: all 0.2s; }
.pattern-item.clickable { cursor: pointer; }
.pattern-item.clickable:hover { transform: scale(1.1); }
.pattern-item.selected { box-shadow: 0 0 0 3px var(--primary-color); }
.pattern-blank { font-size: 2.5rem; background: var(--board-cell); padding: 0.5rem; border-radius: 12px; border: 2px dashed var(--board-border); min-width: 50px; transition: all 0.2s; }
.pattern-blank.correct { border-color: var(--success-color); border-style: solid; background: #E8F5E9; }
.pattern-blank.incorrect { border-color: var(--danger-color); animation: shake 0.3s; }
.pattern-options { display: flex; gap: 0.8rem; justify-content: center; flex-wrap: wrap; margin-top: 1rem; }
.pattern-choice { background: var(--card-background); border: 2px solid var(--board-border); border-radius: 12px; padding: 0.8rem 1.2rem; cursor: pointer; font-size: 1.5rem; transition: all 0.2s; }
.pattern-choice:hover { border-color: var(--primary-color); transform: scale(1.08); }
.pattern-choice.correct { border-color: var(--success-color); background: #E8F5E9; }
.pattern-choice.incorrect { border-color: var(--danger-color); background: #FFEBEE; }
.pattern-palette { display: flex; gap: 0.5rem; justify-content: center; margin-bottom: 1rem; }
.pattern-color { font-size: 2rem; background: white; border: 2px solid var(--board-border); border-radius: 10px; padding: 0.5rem; cursor: pointer; transition: all 0.2s; }
.pattern-color:hover { transform: scale(1.15); }
.pattern-build-zone { display: flex; flex-direction: column; gap: 0.8rem; }
.pattern-row { display: flex; align-items: center; gap: 0.8rem; justify-content: center; }
.row-label { font-weight: 600; font-size: 0.9rem; min-width: 90px; text-align: right; }
.pattern-slots { display: flex; gap: 0.3rem; min-height: 50px; background: var(--board-cell); padding: 0.5rem; border-radius: 10px; }
.pattern-slot { font-size: 2rem; padding: 0.3rem; cursor: pointer; }
.pattern-slot.filled { background: white; border-radius: 8px; box-shadow: var(--shadow-sm); }

/* Conditional Exercises */
.conditional-area, .conditional-fix-area, .conditional-seq-area, .conditional-builder-area,
.conditional-free-area, .if-else-area, .if-else-builder-area { width: 100%; max-width: 600px; }
.condition-display { display: flex; align-items: center; gap: 0.8rem; flex-wrap: wrap; background: var(--primary-light); padding: 1.5rem; border-radius: 16px; margin-bottom: 1.5rem; justify-content: center; font-size: 1.1rem; }
.condition-value { font-size: 2rem; }
.action-options { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.action-option { background: var(--card-background); border: 2px solid var(--board-border); border-radius: 14px; padding: 1.2rem 1.5rem; cursor: pointer; display: flex; flex-direction: column; align-items: center; gap: 0.5rem; transition: all 0.2s; min-width: 120px; }
.action-option:hover { border-color: var(--primary-color); transform: translateY(-3px); box-shadow: var(--shadow-md); }
.action-option.correct { border-color: var(--success-color); background: #E8F5E9; }
.action-option.incorrect { border-color: var(--danger-color); background: #FFEBEE; }
.action-option .icon { font-size: 2rem; }
.scenario-display { background: var(--board-cell); border-radius: 16px; padding: 1.5rem; margin-bottom: 1.5rem; text-align: center; }
.seq-progress { text-align: center; font-weight: 600; color: var(--primary-dark); margin-bottom: 0.5rem; }

/* Builder Template */
.builder-template { display: flex; align-items: center; gap: 0.8rem; flex-wrap: wrap; background: #F3E5F5; padding: 1.5rem; border-radius: 16px; margin-bottom: 1.5rem; justify-content: center; }
.builder-row { display: flex; align-items: center; gap: 0.8rem; width: 100%; }
.builder-slot { background: white; border: 2px dashed var(--board-border); border-radius: 10px; padding: 0.8rem 1.2rem; min-width: 120px; text-align: center; cursor: pointer; transition: all 0.2s; color: var(--text-muted); }
.builder-slot.correct { border-color: var(--success-color); border-style: solid; background: #E8F5E9; color: var(--text-color); }
.builder-options { display: flex; gap: 2rem; justify-content: center; flex-wrap: wrap; margin-bottom: 1.5rem; }
.builder-options > div { min-width: 150px; }
.builder-options h5 { margin-bottom: 0.5rem; color: var(--text-muted); font-size: 0.85rem; }
.builder-option { background: var(--card-background); border: 2px solid var(--board-border); border-radius: 10px; padding: 0.6rem 1rem; cursor: pointer; margin-bottom: 0.4rem; transition: all 0.2s; }
.builder-option:hover { border-color: var(--primary-color); background: var(--primary-light); }

/* If-Else Branches */
.branches { display: flex; gap: 1.5rem; justify-content: center; margin: 1.5rem 0; flex-wrap: wrap; }
.branch { background: var(--card-background); border: 3px solid var(--board-border); border-radius: 16px; padding: 1.5rem 2rem; cursor: pointer; transition: all 0.2s; min-width: 150px; text-align: center; font-size: 1.1rem; }
.branch:hover { transform: translateY(-3px); }
.if-branch { border-color: #81C784; }
.if-branch:hover { background: #E8F5E9; }
.else-branch { border-color: #E57373; }
.else-branch:hover { background: #FFEBEE; }
.branch.correct { border-color: var(--success-color); background: #E8F5E9; }
.branch.incorrect { border-color: var(--danger-color); background: #FFEBEE; animation: shake 0.3s; }

/* Loop with Condition */
.loop-condition-area { width: 100%; max-width: 600px; }
.simulation { margin-top: 1.5rem; text-align: center; }
.sim-items { display: flex; gap: 0.5rem; justify-content: center; margin: 1rem 0; flex-wrap: wrap; }
.sim-item { font-size: 2rem; background: white; padding: 0.5rem; border-radius: 10px; box-shadow: var(--shadow-sm); transition: all 0.3s; }
.sim-item.active { transform: scale(1.3); box-shadow: 0 0 15px rgba(0,212,170,0.5); }
.sim-item.done { opacity: 0.5; }

/* Loop If-Else */
.loop-ifelse-area { width: 100%; max-width: 500px; text-align: center; }
.item-display { background: var(--board-cell); border-radius: 16px; padding: 2rem; margin: 1rem 0; }
.basket-options { display: flex; gap: 1.5rem; justify-content: center; }
.basket-option { background: var(--card-background); border: 2px solid var(--board-border); border-radius: 14px; padding: 1.2rem 2rem; cursor: pointer; transition: all 0.2s; font-size: 1.1rem; }
.basket-option:hover { transform: scale(1.05); }
.basket-option.correct { border-color: var(--success-color); background: #E8F5E9; }
.basket-option.incorrect { border-color: var(--danger-color); background: #FFEBEE; }
.progress { font-weight: 600; color: var(--primary-dark); }

/* Loop Counter */
.loop-counter-area { width: 100%; max-width: 500px; text-align: center; }
.items-display { display: flex; gap: 0.5rem; justify-content: center; margin: 1rem 0; flex-wrap: wrap; }
.counter-item { font-size: 2rem; background: white; padding: 0.5rem; border-radius: 8px; box-shadow: var(--shadow-sm); }

/* Loop Selection */
.loop-selection-area { width: 100%; max-width: 500px; text-align: center; }
.loop-options { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; margin-top: 1.5rem; }
.loop-opt { background: var(--card-background); border: 2px solid var(--board-border); border-radius: 12px; padding: 1rem 2rem; cursor: pointer; font-size: 1.1rem; transition: all 0.2s; }
.loop-opt:hover { border-color: var(--primary-color); transform: scale(1.05); }
.loop-opt.correct { border-color: var(--success-color); background: #E8F5E9; }
.loop-opt.incorrect { border-color: var(--danger-color); background: #FFEBEE; }

/* Comparison Table */
.comparison-table-area { width: 100%; max-width: 600px; }
.comparison-table { width: 100%; border-collapse: separate; border-spacing: 0; background: white; border-radius: 12px; overflow: hidden; box-shadow: var(--shadow-sm); margin-bottom: 1.5rem; }
.comparison-table th { background: linear-gradient(135deg, var(--primary-color), var(--primary-dark)); color: white; padding: 0.8rem; font-weight: 700; }
.comparison-table td { padding: 0.8rem; border-bottom: 1px solid var(--board-border); text-align: center; }
.table-slot { cursor: pointer; background: var(--board-cell); transition: all 0.2s; }
.table-slot:hover { background: var(--primary-light); }
.table-slot.correct { background: #E8F5E9; color: var(--success-color); font-weight: 600; }
.table-slot.incorrect { background: #FFEBEE; animation: shake 0.3s; }
.answer-bank { margin-top: 1rem; }
.answer-bank h5 { margin: 0.5rem 0; color: var(--text-muted); font-size: 0.85rem; }
.answer-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 0.5rem; }
.answer-tag { background: linear-gradient(135deg, #54A0FF, #2E86DE); color: white; padding: 0.4rem 0.8rem; border-radius: 8px; cursor: pointer; font-size: 0.9rem; transition: all 0.2s; }
.answer-tag:hover { transform: scale(1.05); }
.answer-tag.active { box-shadow: 0 0 0 3px rgba(84, 160, 255, 0.4); }

/* Sequence Execution */
.execution-area { width: 100%; max-width: 600px; text-align: center; }
.sequence-preview { display: flex; gap: 0.5rem; justify-content: center; margin-bottom: 1.5rem; flex-wrap: wrap; }
.exec-step { background: var(--card-background); border: 2px solid var(--board-border); border-radius: 10px; padding: 0.8rem; display: flex; align-items: center; gap: 0.5rem; transition: all 0.3s; }
.exec-step.executing { border-color: var(--primary-color); background: var(--primary-light); transform: scale(1.1); box-shadow: 0 0 15px rgba(0,212,170,0.3); }
.exec-step.done { opacity: 0.5; border-color: var(--success-color); }
.step-num { background: var(--primary-color); color: white; width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.8rem; font-weight: 700; }
.step-icon { font-size: 1.3rem; }
.robot-exec-area { margin: 1.5rem 0; min-height: 80px; }
.robot-visual { font-size: 4rem; transition: all 0.5s; display: inline-block; }

/* Mission Planning */
.mission-planning-area { width: 100%; max-width: 500px; }
.mission-steps { display: flex; flex-direction: column; gap: 0.5rem; margin: 1rem 0; }
.mission-step { background: var(--card-background); border: 2px solid var(--board-border); border-radius: 12px; padding: 0.8rem 1rem; cursor: grab; display: flex; align-items: center; gap: 0.8rem; transition: all 0.2s; user-select: none; }
.mission-step:hover { border-color: var(--primary-color); }
.mission-step.dragging { opacity: 0.4; }
.mission-step.selected-move { border-color: var(--primary-dark); background: var(--primary-light); box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.2); }
.mission-steps.error { animation: shake 0.4s; }
.grip { color: var(--text-muted); font-size: 1.2rem; cursor: grab; }

/* Final Project */
.final-project-area { width: 100%; max-width: 600px; text-align: center; }
.phase-progress { display: flex; gap: 0.5rem; justify-content: center; margin-bottom: 1.5rem; }
.phase-dot { font-size: 1.8rem; padding: 0.3rem; border-radius: 50%; transition: all 0.3s; opacity: 0.3; }
.phase-dot.done { opacity: 0.6; }
.phase-dot.active { opacity: 1; transform: scale(1.2); }
.phase-content { background: var(--board-cell); border-radius: 16px; padding: 1.5rem; margin: 1rem 0; min-height: 100px; text-align: left; }
.project-summary { text-align: center; }
.success-msg { color: var(--success-color); font-weight: 700; font-size: 1.3rem; margin-top: 1rem; }

/* Combined Algorithm */
.combined-area { width: 100%; }
.conditions-ref { background: #FFF3E0; border-radius: 12px; padding: 1rem; margin-bottom: 1rem; }
.cond-tag { display: inline-block; background: white; padding: 0.3rem 0.8rem; border-radius: 8px; margin: 0.2rem; font-size: 0.9rem; box-shadow: var(--shadow-sm); }

/* Animations */
@keyframes popIn { from { transform: scale(0); } to { transform: scale(1); } }
@keyframes pulse { 0% { transform: scale(1); } 50% { transform: scale(1.2); } 100% { transform: scale(1); } }
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-8px); }
    75% { transform: translateX(8px); }
}

/* Responsive for new exercise types */
@media (max-width: 768px) {
    .drag-action-area { flex-direction: column; }
    .matching-area { flex-direction: column; align-items: center; }
    .branches { flex-direction: column; }
    .builder-template { flex-direction: column; }
    .builder-options { flex-direction: column; align-items: center; }
    .basket-options { flex-direction: column; }
    .action-options { flex-direction: column; align-items: center; }
    .pattern-item, .pattern-blank { font-size: 2rem; }
    .comparison-table { font-size: 0.85rem; }
    .comparison-table th, .comparison-table td { padding: 0.5rem; }
}

/* ============================================
   Dashboard Styles - Admin & Teacher
   ============================================ */

/* --- Layout --- */
.dashboard-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem;
}

/* --- Tabs --- */
.dashboard-tabs {
    display: flex;
    gap: 0.5rem;
    border-bottom: 2px solid #e0e0e0;
    margin-bottom: 1.5rem;
    padding-bottom: 0;
}

.dash-tab {
    padding: 0.75rem 1.5rem;
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    color: #666;
    border-bottom: 3px solid transparent;
    transition: all 0.2s;
    border-radius: 8px 8px 0 0;
}

.dash-tab:hover {
    color: #333;
    background: rgba(0,0,0,0.04);
}

.dash-tab.active {
    color: var(--primary-color, #6C63FF);
    border-bottom-color: var(--primary-color, #6C63FF);
    background: rgba(108, 99, 255, 0.06);
}

/* --- Panels --- */
.dash-panels {
    min-height: 400px;
}

.dash-panel {
    display: none;
}

.dash-panel.active {
    display: block;
    animation: fadeInPanel 0.3s ease;
}

@keyframes fadeInPanel {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- Stats Grid --- */
.stats-grid {
    display: grid;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stats-grid.four-col { grid-template-columns: repeat(4, 1fr); }
.stats-grid.three-col { grid-template-columns: repeat(3, 1fr); }

.stat-card {
    background: #fff;
    border-radius: 16px;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.07);
    border-left: 4px solid #ddd;
    transition: transform 0.2s, box-shadow 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.12);
}

.stat-card.c-blue { border-left-color: #4A90D9; }
.stat-card.c-green { border-left-color: #00D4AA; }
.stat-card.c-purple { border-left-color: #A29BFE; }
.stat-card.c-orange { border-left-color: #FFAA33; }

.stat-icon {
    font-size: 1.6rem;
    margin-bottom: 0.3rem;
    opacity: 0.85;
}

.stat-card.c-blue .stat-icon { color: #4A90D9; }
.stat-card.c-green .stat-icon { color: #00D4AA; }
.stat-card.c-purple .stat-icon { color: #A29BFE; }
.stat-card.c-orange .stat-icon { color: #FFAA33; }

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
    color: #222;
}

.stat-label {
    font-size: 0.85rem;
    color: #777;
    margin-top: 0.25rem;
}

/* --- Overview Grid --- */
.overview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.overview-card {
    background: #fff;
    border-radius: 16px;
    padding: 1.25rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.overview-card h3 {
    font-size: 1.05rem;
    margin-bottom: 1rem;
    color: #333;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.overview-card h3 i { color: var(--primary-color, #6C63FF); opacity: 0.8; }

/* --- Mini Table (student rows) --- */
.mini-table {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.mini-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0.75rem;
    background: #f9f9ff;
    border-radius: 10px;
    transition: background 0.15s;
}

.mini-row:hover { background: #eef0ff; }

.mr-avatar {
    font-size: 1.3rem;
    flex-shrink: 0;
}

.mr-rank {
    font-weight: 700;
    color: #FFAA33;
    width: 1.5rem;
    text-align: center;
    flex-shrink: 0;
}

.mr-name {
    flex: 1;
    font-weight: 600;
    font-size: 0.92rem;
    color: #333;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mr-grade {
    font-size: 0.8rem;
    color: #888;
    white-space: nowrap;
}

.mr-progress {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: #555;
    min-width: 100px;
    flex-shrink: 0;
}

/* --- Progress Bar (Small) --- */
.progress-bar-sm {
    height: 8px;
    background: #eee;
    border-radius: 4px;
    overflow: hidden;
    flex: 1;
    min-width: 60px;
}

.progress-bar-sm .fill {
    height: 100%;
    border-radius: 4px;
    background: var(--primary-color, #6C63FF);
    transition: width 0.5s ease;
}

.progress-bar-sm .fill.high { background: #00D4AA; }
.progress-bar-sm .fill.medium { background: #FFDD59; }
.progress-bar-sm .fill.low { background: #FF6B6B; }

/* --- Quick Actions --- */
.quick-actions-row {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.qa-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: #fff;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    color: #333;
    transition: all 0.2s;
}

.qa-btn:hover {
    border-color: var(--primary-color, #6C63FF);
    color: var(--primary-color, #6C63FF);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(108, 99, 255, 0.15);
}

.qa-btn i { font-size: 1.1rem; }

/* --- Section Bar --- */
.section-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.section-bar h2 {
    font-size: 1.2rem;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #333;
}

.section-bar h2 i { color: var(--primary-color, #6C63FF); }

/* --- Classes Grid (Admin) --- */
.classes-grid-admin {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.25rem;
}

.class-card-admin {
    background: #fff;
    border-radius: 16px;
    padding: 1.25rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    border: 1px solid #eee;
    transition: box-shadow 0.2s;
}

.class-card-admin:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

.cc-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

.cc-header h3 {
    margin: 0;
    font-size: 1.05rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #333;
}

.cc-header h3 i { color: var(--primary-color, #6C63FF); }

.cc-actions {
    display: flex;
    gap: 0.4rem;
}

.cc-meta {
    display: flex;
    gap: 1.25rem;
    margin-bottom: 0.75rem;
    font-size: 0.88rem;
    color: #666;
}

.cc-meta span {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.cc-meta i { color: #aaa; }

.cc-students {
    border-top: 1px solid #f0f0f0;
    padding-top: 0.75rem;
    margin-bottom: 0.75rem;
    max-height: 200px;
    overflow-y: auto;
}

.cc-student-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.4rem 0.5rem;
    border-radius: 8px;
    font-size: 0.9rem;
    transition: background 0.15s;
}

.cc-student-row:hover { background: #f5f5ff; }

.cc-grade {
    font-size: 0.8rem;
    color: #999;
}

/* --- Button Icon Small --- */
.btn-icon-sm {
    width: 32px;
    height: 32px;
    border: none;
    background: #f0f0f0;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    color: #555;
    transition: all 0.15s;
}

.btn-icon-sm:hover {
    background: var(--primary-color, #6C63FF);
    color: #fff;
}

.btn-icon-sm.danger:hover {
    background: #FF4757;
    color: #fff;
}

/* --- Button Outline --- */
.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color, #6C63FF);
    color: var(--primary-color, #6C63FF);
    border-radius: 10px;
    padding: 0.5rem 1rem;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.88rem;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.btn-outline:hover {
    background: var(--primary-color, #6C63FF);
    color: #fff;
}

/* --- Users Section Block --- */
.users-section-block {
    margin-bottom: 2rem;
}

.users-section-block h3 {
    font-size: 1.05rem;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #444;
}

.users-section-block h3 i { color: var(--primary-color, #6C63FF); opacity: 0.8; }

.users-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.user-row-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.05);
    transition: box-shadow 0.15s;
}

.user-row-card:hover {
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

.ur-avatar {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.ur-info {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.ur-name {
    font-weight: 700;
    font-size: 0.95rem;
    color: #333;
}

.ur-email {
    font-size: 0.82rem;
    color: #888;
}

.ur-classes {
    font-size: 0.85rem;
    color: #666;
    font-weight: 600;
    white-space: nowrap;
}

.ur-progress {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 600;
    min-width: 110px;
}

/* --- Grade Row (overview) --- */
.grade-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0.75rem;
    border-radius: 10px;
    background: #f9f9ff;
    margin-bottom: 0.5rem;
}

.gr-name {
    font-weight: 700;
    font-size: 0.92rem;
    color: #333;
    min-width: 110px;
}

.gr-students {
    font-size: 0.82rem;
    color: #888;
    min-width: 80px;
}

.gr-levels {
    font-size: 0.82rem;
    color: #666;
    min-width: 70px;
}

.gr-pct {
    font-weight: 700;
    font-size: 0.9rem;
    color: #555;
    min-width: 40px;
    text-align: right;
}

/* --- Assign Student List --- */
.assign-student-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-height: 350px;
    overflow-y: auto;
}

.assign-student-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0.75rem;
    background: #f9f9ff;
    border-radius: 10px;
}

.assign-student-row span:first-child { flex: 1; font-weight: 600; }

.assign-grade {
    font-size: 0.82rem;
    color: #888;
}

/* --- Empty Message --- */
.empty-msg {
    text-align: center;
    padding: 1.5rem 1rem;
    color: #aaa;
    font-style: italic;
    font-size: 0.92rem;
}

/* --- Dashboard Footer Actions --- */
.dashboard-footer-actions {
    margin-top: 2rem;
    padding-top: 1.25rem;
    border-top: 1px solid #eee;
    text-align: center;
}

/* --- Welcome Banner (Teacher) --- */
.welcome-banner {
    background: linear-gradient(135deg, #6C63FF 0%, #A29BFE 100%);
    color: #fff;
    padding: 1.5rem 2rem;
    border-radius: 16px;
    margin-bottom: 1.5rem;
}

.welcome-banner h2 {
    margin: 0 0 0.3rem;
    font-size: 1.4rem;
}

.welcome-banner p {
    margin: 0;
    opacity: 0.85;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

/* --- Teacher Class Card --- */
.teacher-class-card {
    background: #fff;
    border-radius: 16px;
    padding: 1.25rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    margin-bottom: 1.25rem;
}

.tcc-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

.tcc-header h3 {
    margin: 0;
    font-size: 1.05rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #333;
}

.tcc-header h3 i { color: var(--primary-color, #6C63FF); }

.tcc-avg {
    font-weight: 700;
    color: var(--primary-color, #6C63FF);
    font-size: 0.95rem;
}

.tcc-students {
    overflow-x: auto;
}

/* --- Dash Table --- */
.dash-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.dash-table th,
.dash-table td {
    padding: 0.65rem 0.75rem;
    text-align: left;
    border-bottom: 1px solid #f0f0f0;
}

.dash-table th {
    font-weight: 700;
    color: #555;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    background: #fafafa;
    border-bottom: 2px solid #e0e0e0;
}

.dash-table tbody tr:hover {
    background: #f9f9ff;
}

.dash-table td.empty-msg {
    text-align: center;
    font-style: italic;
    color: #aaa;
    padding: 2rem;
}

/* --- Student Cell --- */
.student-cell {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sc-avatar {
    font-size: 1.2rem;
    flex-shrink: 0;
}

/* --- Grade Badge Small --- */
.grade-badge-sm {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    background: #f0f0ff;
    border-radius: 6px;
    font-size: 0.78rem;
    font-weight: 600;
    color: #555;
}

/* --- Stars Small --- */
.stars-sm {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    color: #FFAA33;
    font-weight: 700;
    font-size: 0.9rem;
}

.stars-sm i { font-size: 0.85rem; }

/* --- Percent Label --- */
.pct-label {
    font-size: 0.82rem;
    font-weight: 700;
    color: #555;
    display: inline-block;
    margin-top: 0.15rem;
}

/* --- Last Active Text --- */
.la-text {
    font-size: 0.85rem;
    color: #888;
}

.la-text.recent { color: #00D4AA; font-weight: 600; }

/* --- Status Pill --- */
.status-pill {
    display: inline-block;
    padding: 0.25rem 0.7rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
}

.status-pill.st-active {
    background: #e6fff5;
    color: #00B894;
}

.status-pill.st-attention {
    background: #fff8e1;
    color: #F39C12;
}

.status-pill.st-regular {
    background: #e8f4fd;
    color: #2196F3;
}

/* --- Class Summary Row (Teacher overview) --- */
.class-summary-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 0.75rem;
    background: #f9f9ff;
    border-radius: 10px;
    margin-bottom: 0.5rem;
    cursor: pointer;
    transition: background 0.15s;
}

.class-summary-row:hover { background: #eef0ff; }

.csr-name {
    font-weight: 700;
    font-size: 0.92rem;
    color: #333;
    min-width: 100px;
}

.csr-count {
    font-size: 0.82rem;
    color: #888;
    min-width: 80px;
}

.csr-pct {
    font-weight: 700;
    font-size: 0.9rem;
    color: #555;
    min-width: 40px;
    text-align: right;
}

/* --- Student Detail View (modal) --- */
.student-detail-view h3 {
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    font-size: 1.05rem;
    color: #333;
}

.sdv-stats {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-bottom: 1rem;
}

.sdv-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.75rem 1.25rem;
    background: #f5f4ff;
    border-radius: 12px;
}

.sdv-val {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color, #6C63FF);
}

.sdv-lbl {
    font-size: 0.8rem;
    color: #888;
    margin-top: 0.1rem;
}

/* --- Detail Game (student detail) --- */
.detail-game {
    background: #f9f9ff;
    border-radius: 12px;
    padding: 0.75rem 1rem;
    margin-bottom: 0.75rem;
}

.dg-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.dg-name {
    font-weight: 700;
    font-size: 0.95rem;
    color: #333;
}

.dg-completed {
    font-size: 0.82rem;
    color: #888;
}

.dg-levels {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.dg-level {
    padding: 0.25rem 0.6rem;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 600;
}

.dg-level.done {
    background: #e6fff5;
    color: #00B894;
}

.dg-level.pending {
    background: #f0f0f0;
    color: #aaa;
}

/* --- Modal (Dashboard shared) --- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.modal-box {
    background: #fff;
    border-radius: 20px;
    width: 90%;
    max-width: 560px;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 8px 40px rgba(0,0,0,0.2);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from { transform: translateY(30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-box-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid #eee;
}

.modal-box-header h2 {
    margin: 0;
    font-size: 1.15rem;
    color: #333;
}

.modal-close-btn {
    width: 36px;
    height: 36px;
    border: none;
    background: #f0f0f0;
    border-radius: 50%;
    font-size: 1.3rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #777;
    transition: all 0.15s;
}

.modal-close-btn:hover {
    background: #FF4757;
    color: #fff;
}

.modal-box-body {
    padding: 1.5rem;
}

.modal-box-body .form-group {
    margin-bottom: 1rem;
}

.modal-box-body .form-group label {
    display: block;
    font-weight: 700;
    font-size: 0.88rem;
    color: #444;
    margin-bottom: 0.35rem;
}

.modal-box-body .form-group input,
.modal-box-body .form-group select {
    width: 100%;
    padding: 0.65rem 0.75rem;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 0.95rem;
    transition: border-color 0.2s;
    box-sizing: border-box;
}

.modal-box-body .form-group input:focus,
.modal-box-body .form-group select:focus {
    outline: none;
    border-color: var(--primary-color, #6C63FF);
}

.modal-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 1.25rem;
}

/* --- Notification Toast --- */
.dash-notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 0.75rem 1.25rem;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.92rem;
    z-index: 10001;
    transform: translateX(120%);
    transition: transform 0.3s ease;
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.dash-notification.show {
    transform: translateX(0);
}

.dash-notif-success {
    background: #00D4AA;
    color: #fff;
}

.dash-notif-info {
    background: #4A90D9;
    color: #fff;
}

.dash-notif-error {
    background: #FF4757;
    color: #fff;
}

/* --- Filter Select --- */
.filter-select {
    padding: 0.5rem 0.75rem;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: border-color 0.2s;
    background: #fff;
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary-color, #6C63FF);
}

/* --- Dashboard Responsive --- */
@media (max-width: 900px) {
    .stats-grid.four-col { grid-template-columns: repeat(2, 1fr); }
    .stats-grid.three-col { grid-template-columns: repeat(2, 1fr); }
    .overview-grid { grid-template-columns: 1fr; }
    .classes-grid-admin { grid-template-columns: 1fr; }
    .grade-row { flex-wrap: wrap; }
    .sdv-stats { flex-wrap: wrap; }
}

@media (max-width: 600px) {
    .dashboard-tabs { flex-direction: column; }
    .dash-tab { text-align: left; }
    .stats-grid.four-col,
    .stats-grid.three-col { grid-template-columns: 1fr; }
    .section-bar { flex-direction: column; align-items: flex-start; }
    .quick-actions-row { flex-direction: column; }
    .qa-btn { justify-content: center; }
    .dash-table { font-size: 0.82rem; }
    .dash-table th, .dash-table td { padding: 0.5rem; }
    .modal-box { width: 95%; max-width: 100%; border-radius: 16px; }
    .welcome-banner { padding: 1rem 1.25rem; }
    .welcome-banner h2 { font-size: 1.15rem; }
}