/**
 * بوابة الأصمعي التعليمية - التنسيقات الرئيسية
 * تصميم احترافي متقدم
 */

/* ===== المتغيرات ===== */
:root {
    /* الألوان الرئيسية */
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary: #7c3aed;
    --secondary-dark: #6d28d9;

    /* ألوان الخلفية */
    --bg-dark: #0f172a;
    --bg-darker: #020617;
    --bg-card: #1e293b;
    --bg-card-hover: #334155;

    /* ألوان النص */
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    /* ألوان الحالة */
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #06b6d4;

    /* الظلال */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow: 0 4px 6px rgba(0,0,0,0.4);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.5);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.6);
    --shadow-glow: 0 0 30px rgba(37, 99, 235, 0.3);

    /* التدرجات */
    --gradient-primary: linear-gradient(135deg, #2563eb, #7c3aed);
    --gradient-dark: linear-gradient(180deg, #1e293b, #0f172a);
    --gradient-card: linear-gradient(145deg, #1e293b, #0f172a);

    /* الحدود */
    --border-color: #334155;
    --border-radius: 12px;
    --border-radius-lg: 20px;

    /* الخطوط */
    --font-main: 'Tajawal', 'Segoe UI', sans-serif;

    /* الانتقالات */
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background: var(--bg-darker);
    color: var(--text-primary);
    line-height: 1.7;
    direction: rtl;
    min-height: 100vh;
    overflow-x: hidden;
}

/* خلفية متحركة */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse at 20% 20%, rgba(37, 99, 235, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(124, 58, 237, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(6, 182, 212, 0.05) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}

a {
    color: var(--primary-light);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--secondary);
}

img {
    max-width: 100%;
    height: auto;
}

/* ===== الطباعة ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

/* ===== Container ===== */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== Header ===== */
.header {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    z-index: 1000;
    transition: var(--transition);
}

.header.scrolled {
    background: rgba(15, 23, 42, 0.98);
    box-shadow: var(--shadow-lg);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-icon {
    width: 45px;
    height: 45px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    padding: 8px 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* ===== الأزرار ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-main);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: 0.5s;
}

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

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.5);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary);
}

.btn-success {
    background: var(--success);
    color: white;
}

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

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 8px 18px;
    font-size: 0.9rem;
}

.btn-icon {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 12px;
}

/* ===== البطاقات ===== */
.card {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: right;
    transition: var(--transition);
}

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

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

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
}

.card-body {
    padding: 0;
}

.card-footer {
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

/* ===== النماذج ===== */
.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-control {
    width: 100%;
    padding: 14px 18px;
    font-size: 1rem;
    font-family: var(--font-main);
    color: var(--text-primary);
    background: var(--bg-dark);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.2);
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-control:disabled {
    background: var(--bg-card);
    opacity: 0.7;
    cursor: not-allowed;
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: left 15px center;
    padding-left: 40px;
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

.form-text {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 6px;
}

.form-error {
    color: var(--danger);
    font-size: 0.85rem;
    margin-top: 6px;
}

.input-group {
    display: flex;
    align-items: stretch;
}

.input-group .form-control {
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.input-group-text {
    padding: 14px 18px;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-left: none;
    border-radius: var(--border-radius) 0 0 var(--border-radius);
    color: var(--text-secondary);
}

/* ===== الجداول ===== */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--border-radius);
}

.table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.table th,
.table td {
    padding: 16px 20px;
    text-align: right;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    background: var(--bg-card);
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.table tbody tr {
    transition: var(--transition);
}

.table tbody tr:hover {
    background: var(--bg-card);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

/* ===== الشارات ===== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-primary { background: rgba(37, 99, 235, 0.2); color: var(--primary-light); }
.badge-success { background: rgba(34, 197, 94, 0.2); color: var(--success); }
.badge-warning { background: rgba(245, 158, 11, 0.2); color: var(--warning); }
.badge-danger { background: rgba(239, 68, 68, 0.2); color: var(--danger); }
.badge-info { background: rgba(6, 182, 212, 0.2); color: var(--info); }
.badge-secondary { background: rgba(100, 116, 139, 0.2); color: var(--text-secondary); }

/* ===== التنبيهات ===== */
.alert {
    padding: 18px 24px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    display: flex;
    align-items: flex-start;
    gap: 15px;
    border: 1px solid transparent;
}

.alert-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.alert-success {
    background: rgba(34, 197, 94, 0.1);
    border-color: rgba(34, 197, 94, 0.3);
    color: var(--success);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.3);
    color: var(--warning);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.3);
    color: var(--danger);
}

.alert-info {
    background: rgba(6, 182, 212, 0.1);
    border-color: rgba(6, 182, 212, 0.3);
    color: var(--info);
}

/* ===== صفحة تسجيل الدخول ===== */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}

.auth-container {
    width: 100%;
    max-width: 480px;
}

.auth-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 48px;
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
}

.auth-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.auth-logo {
    text-align: center;
    margin-bottom: 40px;
}

.auth-logo-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin: 0 auto 20px;
    box-shadow: var(--shadow-glow);
}

.auth-title {
    font-size: 1.75rem;
    margin-bottom: 8px;
}

.auth-subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
}

.auth-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    background: var(--bg-dark);
    padding: 6px;
    border-radius: var(--border-radius);
}

.auth-tab {
    flex: 1;
    padding: 14px;
    text-align: center;
    font-weight: 600;
    color: var(--text-secondary);
    border-radius: 8px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    background: transparent;
    font-family: var(--font-main);
    font-size: 1rem;
}

.auth-tab:hover {
    color: var(--text-primary);
}

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

.auth-divider {
    display: flex;
    align-items: center;
    gap: 15px;
    margin: 30px 0;
    color: var(--text-muted);
}

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

/* ===== الصفحة الرئيسية - Hero ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    position: relative;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 24px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-image {
    position: relative;
}

.hero-image img {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 60px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-light);
    display: block;
}

.stat-label {
    color: var(--text-secondary);
}

/* ===== الميزات ===== */
.features {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    padding: 40px;
    text-align: center;
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 24px;
    color: white;
}

.feature-title {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.feature-text {
    color: var(--text-secondary);
}

/* ===== Sidebar ===== */
.dashboard-layout {
    display: flex;
    min-height: 100vh;
    padding-top: 70px;
}

.sidebar {
    width: 280px;
    background: var(--bg-dark);
    border-left: 1px solid var(--border-color);
    position: fixed;
    top: 70px;
    right: 0;
    bottom: 0;
    overflow-y: auto;
    padding: 24px 0;
    transition: var(--transition);
    z-index: 100;
}

.sidebar-header {
    padding: 0 24px 24px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 24px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-avatar {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: white;
    font-weight: 600;
}

.user-name {
    font-weight: 600;
    font-size: 1rem;
}

.user-role {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.sidebar-menu {
    list-style: none;
}

.sidebar-item {
    margin-bottom: 4px;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 24px;
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition);
    border-right: 3px solid transparent;
}

.sidebar-link:hover,
.sidebar-link.active {
    background: var(--bg-card);
    color: var(--text-primary);
    border-right-color: var(--primary);
}

.sidebar-link i {
    width: 20px;
    font-size: 1.1rem;
}

.sidebar-divider {
    height: 1px;
    background: var(--border-color);
    margin: 20px 24px;
}

.sidebar-title {
    padding: 0 24px;
    margin-bottom: 12px;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
}

/* ===== Main Content ===== */
.main-content {
    flex: 1;
    margin-right: 280px;
    padding: 30px;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 30px;
}

.page-title {
    font-size: 1.75rem;
    margin: 0;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.breadcrumb-item::after {
    content: '/';
    color: var(--text-muted);
}

.breadcrumb-item:last-child::after {
    display: none;
}

/* ===== Stats Cards ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-bottom: 30px;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px;
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    flex-shrink: 0;
}

.stat-icon.primary { background: var(--gradient-primary); }
.stat-icon.success { background: linear-gradient(135deg, #22c55e, #16a34a); }
.stat-icon.warning { background: linear-gradient(135deg, #f59e0b, #d97706); }
.stat-icon.danger { background: linear-gradient(135deg, #ef4444, #dc2626); }
.stat-icon.info { background: linear-gradient(135deg, #06b6d4, #0891b2); }

.stat-info h3 {
    font-size: 2rem;
    margin-bottom: 4px;
}

.stat-info p {
    margin: 0;
    color: var(--text-secondary);
}

/* ===== Video Player ===== */
.video-container {
    position: relative;
    background: #000;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    aspect-ratio: 16/9;
}

.video-player {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.video-chapters {
    margin-top: 20px;
}

.chapter-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.chapter-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 20px;
    background: var(--bg-card);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
}

.chapter-item:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary);
}

.chapter-item.active {
    background: rgba(37, 99, 235, 0.15);
    border-color: var(--primary);
}

.chapter-time {
    font-family: monospace;
    background: var(--bg-dark);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.9rem;
    color: var(--primary-light);
}

.chapter-title {
    flex: 1;
    font-weight: 500;
}

/* ===== Jitsi Container ===== */
.jitsi-container {
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    background: #000;
}

.jitsi-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* ===== Footer ===== */
.footer {
    background: var(--bg-dark);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 30px;
    margin-top: 100px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand p {
    margin-top: 20px;
    max-width: 300px;
}

.footer-title {
    font-size: 1.1rem;
    margin-bottom: 20px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--text-secondary);
}

.footer-links a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 30px;
    text-align: center;
    color: var(--text-muted);
}

/* ===== Modal ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

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

.modal {
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: var(--transition);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: 1.25rem;
    margin: 0;
}

.modal-close {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--bg-dark);
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--danger);
    color: white;
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: 24px;
    border-top: 1px solid var(--border-color);
}

/* ===== Animations ===== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideRight {
    from { opacity: 0; transform: translateX(-30px); }
    to { opacity: 1; transform: translateX(0); }
}

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

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.animate-fade { animation: fadeIn 0.5s ease; }
.animate-slide-up { animation: slideUp 0.5s ease; }
.animate-slide-right { animation: slideRight 0.5s ease; }

/* ===== Loading ===== */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ===== Live Badge ===== */
.live-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--danger);
    color: white;
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    animation: pulse 2s infinite;
}

.live-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
}

/* ===== Mobile Menu Toggle ===== */
.mobile-menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 1.25rem;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    position: fixed;
    top: 15px;
    left: 15px;
    z-index: 1001;
}

.mobile-menu-toggle:hover {
    background: var(--primary);
    color: white;
}

/* Sidebar Overlay for Mobile */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 99;
}

.sidebar-overlay.show {
    display: block;
}

/* ===== Responsive ===== */
@media (max-width: 1200px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-image {
        display: none;
    }

    .hero-buttons {
        justify-content: center;
    }

    .live-container {
        grid-template-columns: 1fr !important;
    }

    .watch-container {
        grid-template-columns: 1fr !important;
    }
}

@media (max-width: 992px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .sidebar {
        transform: translateX(100%);
        width: 280px;
        top: 0;
        padding-top: 70px;
        box-shadow: -5px 0 30px rgba(0,0,0,0.5);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .main-content {
        margin-right: 0;
        padding: 20px 15px;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
    }

    .page-header {
        flex-direction: column;
        gap: 15px;
        align-items: flex-start;
    }

    .page-header .btn {
        width: 100%;
        justify-content: center;
    }

    .header-content {
        height: 60px;
    }
}

@media (max-width: 768px) {
    body {
        font-size: 14px;
    }

    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
    h4 { font-size: 1.1rem; }

    .hero {
        padding: 100px 0 60px;
        min-height: auto;
    }

    .hero-text h1 {
        font-size: 2rem;
    }

    .hero-text p {
        font-size: 1rem;
    }

    .hero-stats {
        grid-template-columns: 1fr;
        gap: 15px;
        margin-top: 40px;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    /* Auth Page Mobile */
    .auth-page {
        padding: 20px 15px;
        align-items: flex-start;
        padding-top: 60px;
    }

    .auth-container {
        max-width: 100%;
    }

    .auth-card {
        padding: 24px 20px;
        border-radius: 16px;
    }

    .auth-logo {
        margin-bottom: 30px;
    }

    .auth-logo-icon {
        width: 60px;
        height: 60px;
        font-size: 1.75rem;
        border-radius: 16px;
    }

    .auth-title {
        font-size: 1.5rem;
    }

    .auth-subtitle {
        font-size: 0.9rem;
    }

    .back-home {
        top: 10px;
        right: 10px;
        padding: 8px 15px;
        font-size: 0.9rem;
    }

    /* Forms Mobile */
    .form-group {
        margin-bottom: 18px;
    }

    .form-control {
        padding: 12px 14px;
        font-size: 16px; /* Prevents zoom on iOS */
    }

    .input-group-text {
        padding: 12px 14px;
    }

    /* Nav Menu Mobile */
    .nav-menu {
        display: none;
    }

    /* Stats Grid Mobile */
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .stat-card {
        padding: 18px;
    }

    .stat-icon {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }

    .stat-info h3 {
        font-size: 1.5rem;
    }

    /* Cards Mobile */
    .card {
        padding: 18px;
        border-radius: 14px;
    }

    .card-header {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }

    .card-title {
        font-size: 1.1rem;
    }

    /* Table Mobile */
    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .table {
        min-width: 600px;
    }

    .table th,
    .table td {
        padding: 12px 10px;
        font-size: 0.85rem;
    }

    /* Footer Mobile */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .footer {
        padding: 40px 0 20px;
        margin-top: 60px;
    }

    /* Buttons Mobile */
    .btn {
        padding: 12px 20px;
        font-size: 0.95rem;
    }

    .btn-lg {
        padding: 14px 24px;
        font-size: 1rem;
    }

    .btn-sm {
        padding: 8px 14px;
        font-size: 0.85rem;
    }

    /* Page Title Mobile */
    .page-title {
        font-size: 1.4rem;
    }

    /* Modal Mobile */
    .modal {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        max-width: 100%;
        max-height: 100%;
        border-radius: 0;
        display: none;
    }

    .modal.show {
        display: block;
    }

    .modal-content {
        max-width: 100% !important;
        margin: 0;
        border-radius: 0;
        min-height: 100vh;
    }

    .modal-body {
        padding: 20px;
    }

    .modal-footer {
        flex-direction: column;
        padding: 15px 20px;
    }

    .modal-footer .btn {
        width: 100%;
    }

    /* Features Grid Mobile */
    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .feature-card {
        padding: 30px 20px;
    }

    .feature-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }

    /* Jitsi Container Mobile */
    #jitsiContainer {
        min-height: 300px;
    }

    .jitsi-wrapper {
        min-height: 300px;
    }

    /* Live Sidebar Mobile */
    .live-sidebar {
        order: -1;
    }

    .live-container {
        gap: 20px;
    }

    /* Video Container Mobile */
    .video-container {
        border-radius: 12px;
    }

    /* Chapter Items Mobile */
    .chapter-item {
        padding: 12px 15px;
    }

    .chapter-time {
        padding: 4px 8px;
        font-size: 0.8rem;
    }

    /* Alert Mobile */
    .alert {
        padding: 14px 16px;
        font-size: 0.9rem;
    }

    /* Badge Mobile */
    .badge {
        padding: 4px 10px;
        font-size: 0.75rem;
    }

    /* Section Header Mobile */
    .section-header {
        margin-bottom: 40px;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .section-subtitle {
        font-size: 1rem;
    }

    /* Portal Cards (Home Page) Mobile */
    .portal-cards {
        grid-template-columns: 1fr !important;
        gap: 20px;
        margin: 40px auto 0;
        padding: 0 15px;
    }

    .portal-card {
        padding: 30px 20px;
    }

    /* Logo Mobile */
    .logo {
        font-size: 1.2rem;
    }

    .logo-icon {
        width: 38px;
        height: 38px;
        font-size: 1.2rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 12px;
    }

    .card {
        padding: 15px;
    }

    .auth-card {
        padding: 20px 15px;
    }

    .form-control {
        padding: 11px 12px;
    }

    .main-content {
        padding: 15px 10px;
    }

    .page-header {
        margin-bottom: 20px;
    }

    .stats-grid {
        gap: 12px;
    }

    /* Very small screens */
    .hero-text h1 {
        font-size: 1.6rem;
    }

    .auth-logo-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }

    .auth-title {
        font-size: 1.3rem;
    }

    /* Room info on mobile */
    .room-info-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    /* Form row on mobile */
    .form-row {
        grid-template-columns: 1fr !important;
    }
}

/* Landscape Phone */
@media (max-width: 768px) and (orientation: landscape) {
    .auth-page {
        padding: 20px;
    }

    .auth-card {
        max-width: 500px;
        margin: 0 auto;
    }

    .hero {
        padding: 80px 0 40px;
    }
}

/* Touch Device Improvements */
@media (hover: none) and (pointer: coarse) {
    .btn:hover {
        transform: none;
    }

    .card:hover {
        transform: none;
    }

    .btn:active {
        transform: scale(0.98);
    }

    .card:active {
        transform: scale(0.99);
    }

    /* Larger touch targets */
    .sidebar-link {
        padding: 16px 24px;
    }

    .chapter-item {
        padding: 16px 20px;
    }
}

/* iOS Safe Area */
@supports (padding: max(0px)) {
    .auth-page {
        padding-bottom: max(20px, env(safe-area-inset-bottom));
    }

    .sidebar {
        padding-bottom: max(24px, env(safe-area-inset-bottom));
    }

    .main-content {
        padding-bottom: max(30px, env(safe-area-inset-bottom));
    }
}

/* Print Styles */
@media print {
    .sidebar,
    .mobile-menu-toggle,
    .btn,
    .back-home {
        display: none !important;
    }

    .main-content {
        margin: 0;
        padding: 0;
    }

    body {
        background: white;
        color: black;
    }
}
/* ===== تحسينات الهاتف المحمول ===== */

/* زر القائمة الجانبية */
.mobile-menu-toggle,
#sidebarToggle {
    display: none !important;
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: var(--transition);
    flex-shrink: 0;
}

.mobile-menu-toggle:hover,
#sidebarToggle:hover {
    background: var(--bg-card-hover);
}

/* Overlay للقائمة الجانبية */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 998;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.sidebar-overlay.show {
    display: block;
    opacity: 1;
}

/* تحسين القائمة الجانبية للهاتف */
@media (max-width: 992px) {
    /* إظهار زر القائمة */
    .mobile-menu-toggle,
    #sidebarToggle {
        display: flex !important;
    }

    /* القائمة الجانبية */
    .sidebar {
        position: fixed;
        top: 0;
        right: -300px;
        width: 280px;
        height: 100vh;
        z-index: 999;
        padding-top: 70px;
        transition: right 0.3s ease;
        box-shadow: -5px 0 30px rgba(0,0,0,0.5);
        overflow-y: auto;
    }

    .sidebar.open {
        right: 0;
    }

    /* المحتوى الرئيسي */
    .main-content {
        margin-right: 0 !important;
        padding: 20px 15px !important;
        width: 100%;
    }

    /* إخفاء اسم المستخدم في الهيدر على الشاشات الصغيرة */
    #userMenuBtn span {
        display: none;
    }

    #userMenuBtn {
        padding: 8px 12px;
    }

    /* تصغير الشعار */
    .logo span {
        display: none;
    }

    .logo-icon {
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 768px) {
    /* Header */
    .header-content {
        height: 60px;
        padding: 0 10px;
    }

    /* الشعار */
    .logo-icon {
        width: 36px;
        height: 36px;
        font-size: 1rem;
    }

    /* Stats Grid */
    .stats-grid {
        grid-template-columns: 1fr !important;
        gap: 12px;
    }

    .stat-card {
        padding: 15px;
    }

    .stat-icon {
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }

    .stat-info h3 {
        font-size: 1.3rem;
    }

    .stat-info p {
        font-size: 0.8rem;
    }

    /* Page Header */
    .page-header {
        flex-direction: column;
        gap: 12px;
        align-items: stretch !important;
        margin-bottom: 20px;
    }

    .page-title {
        font-size: 1.3rem;
    }

    .page-header .btn {
        width: 100%;
        justify-content: center;
    }

    /* Cards */
    .card {
        padding: 15px;
        border-radius: 12px;
    }

    .card-header {
        flex-direction: column;
        gap: 10px;
        align-items: stretch !important;
        padding: 12px 15px;
    }

    .card-title {
        font-size: 1rem;
    }

    .card-body {
        padding: 15px;
    }

    /* Classes Grid */
    .classes-grid {
        grid-template-columns: 1fr !important;
        gap: 15px;
    }

    .class-card {
        margin: 0;
    }

    .class-header {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }

    .class-icon {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
        margin: 0 auto;
    }

    .class-name {
        font-size: 1.1rem;
    }

    .class-stats {
        justify-content: center;
        flex-wrap: wrap;
    }

    .class-actions {
        flex-direction: column;
    }

    .class-actions .btn {
        width: 100%;
    }

    /* Lessons Grid */
    .lessons-grid {
        grid-template-columns: 1fr !important;
        gap: 15px;
    }

    .recorded-lessons-grid {
        grid-template-columns: 1fr !important;
        gap: 15px;
    }

    .lesson-card {
        padding: 15px;
    }

    /* Schedule Grid */
    .schedule-grid {
        grid-template-columns: 1fr !important;
        gap: 12px;
    }

    .day-card {
        min-height: auto;
    }

    .day-header {
        padding: 10px 12px;
    }

    .week-navigation {
        flex-wrap: wrap;
        gap: 8px;
        justify-content: center;
    }

    .current-week {
        font-size: 0.95rem;
        padding: 0 10px;
    }

    .week-stats {
        flex-wrap: wrap;
        gap: 15px;
        justify-content: center;
        padding: 12px 15px;
    }

    /* Profile Grid */
    .profile-grid {
        grid-template-columns: 1fr !important;
        gap: 15px;
    }

    .profile-card {
        order: -1;
    }

    .profile-header {
        padding: 25px 15px;
        margin: -15px -15px 15px;
    }

    .profile-avatar {
        width: 80px;
        height: 80px;
        font-size: 2rem;
    }

    .profile-stats {
        flex-wrap: wrap;
        gap: 15px;
        padding: 15px;
    }

    .stat-item {
        min-width: 70px;
    }

    .stat-value {
        font-size: 1.2rem;
    }

    /* Students Grid */
    .students-grid {
        grid-template-columns: 1fr !important;
        gap: 12px;
    }

    .student-card {
        padding: 12px;
    }

    .student-avatar {
        width: 45px;
        height: 45px;
        font-size: 1rem;
    }

    /* Forms */
    .form-group {
        margin-bottom: 15px;
    }

    .form-control {
        padding: 12px 14px;
        font-size: 16px; /* Prevents zoom on iOS */
    }

    .form-row {
        grid-template-columns: 1fr !important;
        gap: 15px;
    }

    /* Filter Form */
    form[method="GET"] {
        flex-direction: column !important;
        align-items: stretch !important;
    }

    form[method="GET"] select,
    form[method="GET"] .form-control {
        width: 100% !important;
        min-width: auto !important;
    }

    form[method="GET"] .btn {
        width: 100%;
    }

    /* Tables */
    .table-responsive {
        margin: 0 -15px;
        padding: 0 15px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .table {
        min-width: 500px;
        font-size: 0.85rem;
    }

    .table th,
    .table td {
        padding: 10px 8px;
        white-space: nowrap;
    }

    /* Buttons */
    .btn {
        padding: 10px 16px;
        font-size: 0.9rem;
    }

    .btn-sm {
        padding: 8px 12px;
        font-size: 0.85rem;
    }

    .btn i {
        font-size: 0.9rem;
    }

    /* Badges */
    .badge {
        padding: 4px 8px;
        font-size: 0.7rem;
    }

    /* Alerts */
    .alert {
        padding: 12px 15px;
        font-size: 0.9rem;
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }

    .alert .btn {
        width: 100%;
    }

    /* Live Indicator */
    .live-indicator {
        font-size: 0.7rem;
        padding: 4px 10px;
        top: -8px;
        left: 10px;
    }

    /* Lesson Badge */
    .lesson-badge {
        font-size: 0.7rem;
        padding: 3px 8px;
    }

    /* Watch History */
    .watch-history-list {
        gap: 8px;
    }

    .watch-item {
        flex-wrap: wrap;
        gap: 10px;
        padding: 12px;
    }

    .watch-icon {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }

    .watch-info {
        flex: 1 1 100%;
        order: 2;
    }

    .watch-date {
        font-size: 0.75rem;
        order: 3;
        flex: 1;
    }

    .watch-item .btn {
        order: 4;
    }

    /* Teacher Info */
    .teacher-info {
        padding: 10px;
        font-size: 0.85rem;
    }

    /* Enrollment Date */
    .enrollment-date {
        font-size: 0.75rem;
        padding-top: 10px;
    }

    /* Dropdown */
    .dropdown-menu {
        position: fixed !important;
        top: auto !important;
        bottom: 0 !important;
        left: 0 !important;
        right: 0 !important;
        width: 100% !important;
        max-height: 70vh;
        border-radius: 20px 20px 0 0 !important;
        overflow-y: auto;
    }

    .dropdown-menu a {
        padding: 15px 20px !important;
    }
}

@media (max-width: 480px) {
    /* Very Small Screens */
    .header-content {
        padding: 0 8px;
    }

    #sidebarToggle {
        width: 40px;
        height: 40px;
    }

    .main-content {
        padding: 15px 10px !important;
    }

    .card {
        padding: 12px;
    }

    .card-header,
    .card-body,
    .card-footer {
        padding: 12px;
    }

    .page-title {
        font-size: 1.1rem;
    }

    .stat-card {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }

    .stat-icon {
        margin: 0 auto;
    }

    .profile-stats {
        justify-content: space-around;
    }

    .stat-item {
        min-width: 60px;
    }

    .lesson-thumbnail {
        height: 120px;
    }

    .form-control {
        padding: 11px 12px;
    }
}

/* Landscape Mode on Phones */
@media (max-width: 768px) and (orientation: landscape) {
    .sidebar {
        width: 250px;
        padding-top: 60px;
    }

    .schedule-grid {
        grid-template-columns: repeat(4, 1fr) !important;
    }

    .day-card {
        min-height: 200px;
    }
}

/* Safe Area for notched devices */
@supports (padding: max(0px)) {
    .header {
        padding-top: env(safe-area-inset-top);
    }

    .sidebar {
        padding-bottom: max(20px, env(safe-area-inset-bottom));
    }

    .main-content {
        padding-bottom: max(20px, env(safe-area-inset-bottom));
    }
}

/* Touch improvements */
@media (hover: none) and (pointer: coarse) {
    .btn,
    .card,
    .sidebar-link,
    .lesson-card,
    .student-card,
    .class-card {
        -webkit-tap-highlight-color: transparent;
    }

    .btn:active {
        transform: scale(0.97);
    }

    .sidebar-link {
        padding: 14px 20px;
    }

    .sidebar-link:active {
        background: var(--bg-card-hover);
    }
}

/* Print - hide mobile elements */
@media print {
    .mobile-menu-toggle,
    #sidebarToggle,
    .sidebar-overlay {
        display: none !important;
    }
}

/* ===== Header Mobile Styles ===== */

/* Mobile Menu Toggle Button */
.mobile-menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: var(--transition);
    flex-shrink: 0;
}

.mobile-menu-toggle:hover {
    background: var(--bg-card-hover);
}

.mobile-menu-toggle:active {
    transform: scale(0.95);
}

/* User Avatar Small */
.user-avatar-small {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: 600;
    flex-shrink: 0;
}

/* User Menu Button */
.user-menu-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 12px 6px 6px;
}

.user-name-text {
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.chevron-icon {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Notification Button */
.notification-btn {
    position: relative;
    width: 44px;
    height: 44px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.notification-badge {
    position: absolute;
    top: -5px;
    left: -5px;
    background: var(--danger);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 50px;
    min-width: 18px;
    text-align: center;
}

/* Dropdown Menu */
.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 10px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    min-width: 200px;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    overflow: hidden;
}

.dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: var(--text-secondary);
    transition: var(--transition);
}

.dropdown-menu a:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

.dropdown-menu .logout-link {
    color: var(--danger);
}

.dropdown-menu .logout-link:hover {
    background: rgba(239, 68, 68, 0.1);
}

.dropdown-divider {
    border-top: 1px solid var(--border-color);
    margin: 8px 0;
}

/* Logo Text */
.logo-text {
    font-weight: 700;
    font-size: 1.3rem;
}

/* Sidebar Overlay */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 998;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.sidebar-overlay.active {
    display: block;
    opacity: 1;
}

/* Mobile Responsive */
@media (max-width: 992px) {
    .mobile-menu-toggle {
        display: flex !important;
    }

    .sidebar {
        position: fixed;
        top: 0;
        right: -300px;
        width: 280px;
        height: 100vh;
        z-index: 999;
        padding-top: 70px;
        transition: right 0.3s ease;
        box-shadow: -5px 0 30px rgba(0,0,0,0.5);
        overflow-y: auto;
    }

    .sidebar.open {
        right: 0;
    }

    .main-content {
        margin-right: 0 !important;
    }

    .user-name-text {
        display: none;
    }

    .chevron-icon {
        display: none;
    }

    .user-menu-btn {
        padding: 6px;
    }

    .logo-full {
        display: none;
    }
}

@media (max-width: 768px) {
    .header-content {
        height: 60px;
    }

    .mobile-menu-toggle {
        width: 40px;
        height: 40px;
    }

    .notification-btn {
        width: 40px;
        height: 40px;
    }

    .user-avatar-small {
        width: 30px;
        height: 30px;
        font-size: 0.85rem;
    }

    .logo-icon {
        width: 36px;
        height: 36px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .header-content {
        padding: 0 8px;
    }

    .mobile-menu-toggle {
        width: 38px;
        height: 38px;
        font-size: 1rem;
    }

    .notification-btn {
        width: 38px;
        height: 38px;
    }

    .dropdown-menu {
        position: fixed !important;
        top: auto !important;
        bottom: 0 !important;
        left: 0 !important;
        right: 0 !important;
        width: 100% !important;
        max-height: 60vh;
        border-radius: 20px 20px 0 0 !important;
        margin: 0 !important;
    }

    .dropdown-menu a {
        padding: 16px 20px;
    }
}

/* ======================================
   تحسينات منطقة الملف الشخصي في الهيدر
   ====================================== */

/* Header Container */
.header-container {
    max-width: 100%;
    padding: 0 20px;
}

/* Header Brand */
.header-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* User Avatar Small */
.user-avatar-small {
    width: 38px;
    height: 38px;
    background: var(--gradient-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    color: white;
    flex-shrink: 0;
}

/* User Avatar Large (in dropdown) */
.user-avatar-large {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.3rem;
    color: white;
    flex-shrink: 0;
}

/* User Menu Button */
.user-menu-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 16px 8px 10px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
    min-height: 54px;
    color: var(--text-primary);
}

.user-menu-btn:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.user-name-text {
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.chevron-icon {
    font-size: 0.7rem;
    color: var(--text-muted);
    transition: transform 0.3s ease;
}

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

.dropdown.open .chevron-icon {
    transform: rotate(180deg);
}

/* Notification Button */
.notification-btn {
    position: relative;
    width: 54px;
    height: 54px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-size: 1.2rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.notification-btn:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.notification-badge {
    position: absolute;
    top: -4px;
    left: -4px;
    background: var(--danger);
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 3px 7px;
    border-radius: 50px;
    min-width: 20px;
    text-align: center;
    border: 2px solid var(--bg-main);
    animation: pulse-badge 2s infinite;
}

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

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    width: 54px;
    height: 54px;
    padding: 0;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-size: 1.3rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.mobile-menu-toggle:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary);
    color: var(--primary);
}

/* Dropdown */
.dropdown {
    position: relative;
}

/* Dropdown Menu */
.dropdown-menu {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    min-width: 240px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
    z-index: 1001;
    overflow: hidden;
    animation: dropdownFadeIn 0.2s ease;
}

.dropdown.open .dropdown-menu {
    display: block;
}

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

.dropdown-menu::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 20px;
    width: 12px;
    height: 12px;
    background: var(--bg-card);
    border-left: 1px solid var(--border-color);
    border-top: 1px solid var(--border-color);
    transform: rotate(45deg);
}

/* User Menu Header */
.user-menu-header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 20px;
    background: var(--bg-dark);
}

.user-info {
    flex: 1;
    min-width: 0;
}

.user-fullname {
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-role-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
}

.user-role-badge.admin {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
}

.user-role-badge.teacher {
    background: rgba(59, 130, 246, 0.15);
    color: #3b82f6;
}

.user-role-badge.student {
    background: rgba(16, 185, 129, 0.15);
    color: #10b981;
}

/* Dropdown Menu Links */
.dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 20px;
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition);
}

.dropdown-menu a i {
    width: 20px;
    text-align: center;
    font-size: 1rem;
    color: var(--text-muted);
    transition: var(--transition);
}

.dropdown-menu a:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

.dropdown-menu a:hover i {
    color: var(--primary);
}

.dropdown-menu .logout-link {
    color: var(--danger);
}

.dropdown-menu .logout-link i {
    color: var(--danger);
}

.dropdown-menu .logout-link:hover {
    background: rgba(239, 68, 68, 0.1);
}

.dropdown-divider {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 8px 0;
}

/* ======================================
   Responsive
   ====================================== */

@media (max-width: 992px) {
    .mobile-menu-toggle {
        display: flex !important;
    }

    .user-name-text,
    .chevron-icon {
        display: none;
    }

    .user-menu-btn {
        padding: 8px;
        min-height: 54px;
        width: 54px;
        justify-content: center;
    }

    .logo-full {
        display: none;
    }
}

@media (max-width: 768px) {
    .header-container {
        padding: 0 12px;
    }

    .header-content {
        height: 64px;
    }

    .header-actions {
        gap: 8px;
    }

    .mobile-menu-toggle,
    .notification-btn,
    .user-menu-btn {
        width: 48px;
        height: 48px;
        min-height: 48px;
        border-radius: 10px;
    }

    .user-avatar-small {
        width: 34px;
        height: 34px;
        font-size: 0.9rem;
        border-radius: 8px;
    }

    .logo-icon {
        width: 40px;
        height: 40px;
        font-size: 1.1rem;
        border-radius: 10px;
    }
}

@media (max-width: 480px) {
    .header-container {
        padding: 0 10px;
    }

    .header-content {
        height: 60px;
    }

    .header-actions {
        gap: 6px;
    }

    .mobile-menu-toggle,
    .notification-btn,
    .user-menu-btn {
        width: 44px;
        height: 44px;
        min-height: 44px;
    }

    .mobile-menu-toggle {
        font-size: 1.1rem;
    }

    .notification-btn {
        font-size: 1.1rem;
    }

    .user-avatar-small {
        width: 32px;
        height: 32px;
        font-size: 0.85rem;
    }

    .logo-icon {
        width: 38px;
        height: 38px;
        font-size: 1rem;
    }

    /* Dropdown as bottom sheet on mobile */
    .dropdown-menu {
        position: fixed !important;
        top: auto !important;
        bottom: 0 !important;
        left: 0 !important;
        right: 0 !important;
        width: 100% !important;
        max-height: 70vh;
        border-radius: 24px 24px 0 0 !important;
        margin: 0 !important;
        padding-bottom: env(safe-area-inset-bottom, 20px);
    }

    .dropdown-menu::before {
        display: none;
    }

    .dropdown-menu::after {
        content: '';
        position: absolute;
        top: 10px;
        left: 50%;
        transform: translateX(-50%);
        width: 40px;
        height: 4px;
        background: var(--border-color);
        border-radius: 2px;
    }

    .user-menu-header {
        padding-top: 30px;
    }

    .dropdown-menu a {
        padding: 16px 24px;
        font-size: 1.05rem;
    }

    .dropdown-menu a i {
        font-size: 1.1rem;
        width: 24px;
    }
}


/* ======================================
   تحسينات بسيطة لمنطقة الهيدر
   ====================================== */

/* تحسين زر المستخدم */
.user-menu-btn {
    display: flex !important;
    align-items: center !important;
    gap: 10px !important;
    padding: 8px 14px 8px 8px !important;
    background: var(--bg-card) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 12px !important;
    cursor: pointer !important;
    transition: var(--transition) !important;
    min-height: 48px !important;
}

.user-menu-btn:hover {
    background: var(--bg-card-hover) !important;
    border-color: var(--primary) !important;
}

/* تحسين الأفاتار */
.user-avatar-small {
    width: 34px !important;
    height: 34px !important;
    background: var(--gradient-primary) !important;
    border-radius: 8px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-weight: 700 !important;
    font-size: 0.95rem !important;
    color: white !important;
    flex-shrink: 0 !important;
}

/* تحسين زر الإشعارات */
.notification-btn {
    width: 48px !important;
    height: 48px !important;
    padding: 0 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    background: var(--bg-card) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 12px !important;
    font-size: 1.1rem !important;
    color: var(--text-secondary) !important;
    cursor: pointer !important;
    transition: var(--transition) !important;
    position: relative !important;
}

.notification-btn:hover {
    background: var(--bg-card-hover) !important;
    border-color: var(--primary) !important;
    color: var(--primary) !important;
}

/* تحسين زر القائمة للجوال */
.mobile-menu-toggle {
    width: 48px !important;
    height: 48px !important;
    padding: 0 !important;
    display: none !important;
    align-items: center !important;
    justify-content: center !important;
    background: var(--bg-card) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 12px !important;
    font-size: 1.2rem !important;
    color: var(--text-secondary) !important;
    cursor: pointer !important;
    transition: var(--transition) !important;
}

.mobile-menu-toggle:hover {
    background: var(--bg-card-hover) !important;
    border-color: var(--primary) !important;
    color: var(--primary) !important;
}

/* تحسين القائمة المنسدلة */
.dropdown-menu {
    background: var(--bg-card) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 12px !important;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4) !important;
    min-width: 200px !important;
    overflow: hidden !important;
}

.dropdown-menu a {
    padding: 12px 18px !important;
}

.dropdown-menu a:hover {
    background: var(--bg-card-hover) !important;
}

/* Responsive */
@media (max-width: 992px) {
    .mobile-menu-toggle {
        display: flex !important;
    }
    
    .user-name-text,
    .chevron-icon {
        display: none !important;
    }
    
    .user-menu-btn {
        padding: 8px !important;
        min-height: 48px !important;
        width: 48px !important;
        justify-content: center !important;
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle,
    .notification-btn,
    .user-menu-btn {
        width: 44px !important;
        height: 44px !important;
        min-height: 44px !important;
        border-radius: 10px !important;
    }

    .user-avatar-small {
        width: 30px !important;
        height: 30px !important;
        font-size: 0.85rem !important;
    }
}

/* =============================================
   تحسينات خاصة بلوحة تحكم الطالب للهاتف المحمول
   ============================================= */

/* تحسين عرض البطاقات الإحصائية */
@media (max-width: 768px) {
    .student-dashboard .stats-grid {
        grid-template-columns: 1fr 1fr !important;
        gap: 10px !important;
    }

    .student-dashboard .stat-card {
        padding: 15px 12px !important;
        flex-direction: column !important;
        text-align: center !important;
        gap: 8px !important;
    }

    .student-dashboard .stat-icon {
        width: 40px !important;
        height: 40px !important;
        font-size: 1rem !important;
        margin: 0 auto !important;
    }

    .student-dashboard .stat-info h3 {
        font-size: 1.3rem !important;
        margin: 0 !important;
    }

    .student-dashboard .stat-info p {
        font-size: 0.75rem !important;
        margin: 0 !important;
    }
}

/* تحسين عرض الحصص المباشرة */
@media (max-width: 768px) {
    .alert.alert-danger.persistent {
        flex-direction: column !important;
        text-align: center !important;
        padding: 20px 15px !important;
    }

    .alert.alert-danger.persistent .btn {
        width: 100% !important;
        margin-top: 15px !important;
    }

    /* الحصص القادمة */
    .card-body > div[style*="grid-template-columns"] {
        grid-template-columns: 1fr !important;
    }

    /* عناصر الحصص القادمة */
    div[style*="border-right: 4px solid"] {
        padding: 15px !important;
    }

    div[style*="border-right: 4px solid"] > div[style*="flex: 1"] {
        text-align: center;
    }
}

/* تحسين بطاقات الحصص المسجلة */
@media (max-width: 768px) {
    .card-body > div[style*="minmax(280px"] {
        grid-template-columns: 1fr !important;
    }

    /* بطاقة الحصة المسجلة */
    .card[style*="padding: 0"][style*="overflow: hidden"] {
        display: flex !important;
        flex-direction: row !important;
    }

    .card[style*="padding: 0"][style*="overflow: hidden"] > div[style*="height: 150px"] {
        width: 120px !important;
        min-width: 120px !important;
        height: auto !important;
        min-height: 100px !important;
    }

    .card[style*="padding: 0"][style*="overflow: hidden"] > div[style*="padding: 20px"] {
        padding: 12px !important;
        flex: 1 !important;
    }

    .card[style*="padding: 0"][style*="overflow: hidden"] h5 {
        font-size: 0.9rem !important;
        margin-bottom: 5px !important;
    }
}

/* تحسين صفحة الفصول */
@media (max-width: 768px) {
    .classes-grid {
        grid-template-columns: 1fr !important;
        gap: 15px !important;
    }

    .class-card {
        border-radius: 12px !important;
    }

    .class-card .card-body {
        padding: 15px !important;
    }

    .class-header {
        flex-direction: column !important;
        text-align: center !important;
        gap: 12px !important;
    }

    .class-icon {
        width: 50px !important;
        height: 50px !important;
        font-size: 1.2rem !important;
        margin: 0 auto !important;
    }

    .class-name {
        font-size: 1.1rem !important;
    }

    .class-subject {
        font-size: 0.85rem !important;
    }

    .teacher-info {
        padding: 10px !important;
        font-size: 0.85rem !important;
        justify-content: center !important;
    }

    .class-stats {
        justify-content: center !important;
        flex-wrap: wrap !important;
        gap: 15px !important;
    }

    .class-stats .stat {
        font-size: 0.85rem !important;
    }

    .class-actions {
        flex-direction: column !important;
        gap: 8px !important;
    }

    .class-actions .btn {
        width: 100% !important;
    }

    .enrollment-date {
        justify-content: center !important;
        font-size: 0.75rem !important;
    }

    .live-indicator {
        font-size: 0.7rem !important;
        padding: 4px 10px !important;
    }
}

/* تحسين صفحة الحصص */
@media (max-width: 768px) {
    /* الفلاتر */
    .card[style*="margin-bottom: 20px"] form {
        flex-direction: column !important;
        gap: 10px !important;
    }

    .card[style*="margin-bottom: 20px"] form select,
    .card[style*="margin-bottom: 20px"] form .form-control {
        width: 100% !important;
        min-width: 100% !important;
    }

    .card[style*="margin-bottom: 20px"] form .btn {
        width: 100% !important;
    }

    /* شبكة الحصص */
    .lessons-grid {
        grid-template-columns: 1fr !important;
        gap: 12px !important;
    }

    .lesson-card {
        padding: 15px !important;
    }

    .lesson-card h4 {
        font-size: 1rem !important;
    }

    .lesson-meta {
        font-size: 0.8rem !important;
    }

    .lesson-badge {
        font-size: 0.7rem !important;
        padding: 3px 8px !important;
    }

    /* الحصص المسجلة */
    .recorded-lessons-grid {
        grid-template-columns: 1fr !important;
        gap: 12px !important;
    }

    .recorded-lesson-card {
        display: flex !important;
        flex-direction: row !important;
    }

    .recorded-lesson-card .lesson-thumbnail {
        width: 100px !important;
        min-width: 100px !important;
        height: auto !important;
        min-height: 90px !important;
        border-radius: 8px 0 0 8px !important;
    }

    .recorded-lesson-card .lesson-thumbnail i {
        font-size: 2rem !important;
    }

    .recorded-lesson-card .lesson-thumbnail .duration {
        font-size: 0.65rem !important;
        padding: 2px 6px !important;
        bottom: 5px !important;
        left: 5px !important;
    }

    .recorded-lesson-card .lesson-info {
        padding: 10px !important;
        flex: 1 !important;
    }

    .recorded-lesson-card .lesson-info h5 {
        font-size: 0.9rem !important;
        margin-bottom: 4px !important;
        line-height: 1.3 !important;
    }

    .recorded-lesson-card .lesson-info .subject {
        font-size: 0.75rem !important;
        margin-bottom: 2px !important;
    }

    .recorded-lesson-card .lesson-info .teacher {
        font-size: 0.7rem !important;
        margin-bottom: 6px !important;
    }

    .recorded-lesson-card .lesson-stats {
        font-size: 0.7rem !important;
        gap: 10px !important;
    }
}

/* تحسين صفحة المشاهدة */
@media (max-width: 768px) {
    .video-container {
        border-radius: 8px !important;
        margin: 0 -10px !important;
        width: calc(100% + 20px) !important;
    }

    .video-chapters {
        margin-top: 15px !important;
    }

    .chapter-list {
        gap: 6px !important;
    }

    .chapter-item {
        padding: 10px 12px !important;
        gap: 10px !important;
    }

    .chapter-time {
        font-size: 0.75rem !important;
        padding: 4px 8px !important;
    }

    .chapter-title {
        font-size: 0.9rem !important;
    }
}

/* تحسين صفحة البث المباشر */
@media (max-width: 768px) {
    .jitsi-container,
    #jitsiContainer {
        aspect-ratio: auto !important;
        min-height: 280px !important;
        height: 50vh !important;
        max-height: 400px !important;
        margin: 0 -15px !important;
        width: calc(100% + 30px) !important;
        border-radius: 0 !important;
    }

    .live-info-card {
        margin-top: 15px !important;
    }
}

/* تحسين صفحة الجدول */
@media (max-width: 768px) {
    .schedule-grid {
        grid-template-columns: 1fr !important;
        gap: 10px !important;
    }

    .day-card {
        border-radius: 10px !important;
    }

    .day-header {
        padding: 10px 12px !important;
        font-size: 0.9rem !important;
    }

    .day-content {
        padding: 10px !important;
    }

    .schedule-item {
        padding: 10px !important;
        font-size: 0.85rem !important;
    }

    .week-navigation {
        flex-wrap: wrap !important;
        gap: 8px !important;
        justify-content: center !important;
    }

    .week-navigation .btn {
        padding: 8px 12px !important;
        font-size: 0.85rem !important;
    }

    .current-week {
        font-size: 0.9rem !important;
        order: 3 !important;
        width: 100% !important;
        text-align: center !important;
        margin-top: 5px !important;
    }
}

/* تحسين صفحة الملف الشخصي */
@media (max-width: 768px) {
    .profile-grid {
        grid-template-columns: 1fr !important;
    }

    .profile-card {
        order: -1 !important;
    }

    .profile-header {
        padding: 25px 15px !important;
        margin: -15px -15px 15px !important;
        border-radius: 12px 12px 0 0 !important;
    }

    .profile-avatar {
        width: 80px !important;
        height: 80px !important;
        font-size: 2rem !important;
    }

    .profile-name {
        font-size: 1.2rem !important;
    }

    .profile-role {
        font-size: 0.85rem !important;
    }

    .profile-stats {
        flex-wrap: wrap !important;
        gap: 15px !important;
        padding: 15px !important;
        justify-content: center !important;
    }

    .profile-stats .stat-item {
        min-width: 60px !important;
    }

    .profile-stats .stat-value {
        font-size: 1.2rem !important;
    }

    .profile-stats .stat-label {
        font-size: 0.7rem !important;
    }

    .info-list {
        padding: 0 !important;
    }

    .info-item {
        padding: 12px 0 !important;
        flex-direction: column !important;
        gap: 5px !important;
        text-align: center !important;
    }
}

/* تحسين عرض الأزرار العائمة */
@media (max-width: 768px) {
    .fab-button,
    .floating-action-btn {
        bottom: 20px !important;
        left: 20px !important;
        width: 56px !important;
        height: 56px !important;
    }
}

/* تحسين التنبيهات */
@media (max-width: 768px) {
    .alert {
        padding: 12px 15px !important;
        font-size: 0.9rem !important;
        border-radius: 10px !important;
    }

    .alert-icon {
        font-size: 1.1rem !important;
    }
}

/* تحسين النص الفارغ */
@media (max-width: 768px) {
    .card-body[style*="text-align: center"][style*="padding: 60px"],
    .card-body[style*="text-align: center"][style*="padding: 50px"] {
        padding: 40px 20px !important;
    }

    .card-body[style*="text-align: center"] i[style*="font-size: 4rem"],
    .card-body[style*="text-align: center"] i[style*="font-size: 3rem"] {
        font-size: 2.5rem !important;
    }

    .card-body[style*="text-align: center"] h3 {
        font-size: 1.1rem !important;
    }
}

/* تحسين شريط التقدم */
@media (max-width: 768px) {
    .progress-bar-container {
        height: 6px !important;
    }
}

/* تحسينات إضافية للمس */
@media (hover: none) and (pointer: coarse) {
    /* زيادة حجم الأزرار لسهولة النقر */
    .btn-sm {
        min-height: 44px !important;
        padding: 10px 16px !important;
    }

    /* تحسين عناصر القائمة */
    .sidebar-link {
        padding: 16px 20px !important;
    }

    /* إزالة تأثيرات الحوم للأجهزة اللمسية */
    .card:hover,
    .btn:hover,
    .recorded-lesson-card:hover {
        transform: none !important;
    }

    .card:active,
    .btn:active,
    .recorded-lesson-card:active {
        transform: scale(0.98) !important;
    }
}

/* دعم الشاشات الصغيرة جداً */
@media (max-width: 380px) {
    .student-dashboard .stats-grid {
        grid-template-columns: 1fr !important;
    }

    .class-stats {
        flex-direction: column !important;
        gap: 8px !important;
    }

    .lesson-stats {
        flex-direction: column !important;
        gap: 4px !important;
    }

    .page-title {
        font-size: 1.1rem !important;
    }

    .card-title {
        font-size: 0.95rem !important;
    }
}

/* =============================================
   تحسين عرض اسم الموقع واسم المستخدم للهاتف
   ============================================= */

/* الشاشات الكبيرة فقط */
@media (min-width: 769px) {
    span.logo-text.logo-short {
        display: none !important;
    }

    span.logo-text.logo-full {
        display: inline !important;
    }

    span.user-name-text.user-name-short {
        display: none !important;
    }

    span.user-name-text.user-name-full {
        display: inline !important;
    }
}

/* على الهواتف: إظهار النسخة المختصرة وإخفاء الكاملة */
@media (max-width: 768px) {
    span.logo-text.logo-full {
        display: none !important;
    }

    span.logo-text.logo-short {
        display: inline !important;
        font-size: 1.1rem !important;
        font-weight: 700 !important;
    }

    span.user-name-text.user-name-full {
        display: none !important;
    }

    span.user-name-text.user-name-short {
        display: inline !important;
        font-size: 0.85rem !important;
        max-width: 80px !important;
        overflow: hidden !important;
        text-overflow: ellipsis !important;
        white-space: nowrap !important;
    }

    /* إظهار اسم المستخدم على الهواتف */
    .user-menu-btn {
        padding: 6px 10px 6px 6px !important;
        width: auto !important;
        min-width: auto !important;
    }

    .chevron-icon {
        display: inline !important;
        font-size: 0.6rem !important;
        margin-right: 2px !important;
    }
}

/* شاشات صغيرة جداً - إخفاء الاسم تماماً */
@media (max-width: 400px) {
    span.user-name-text.user-name-short {
        display: none !important;
    }

    .chevron-icon {
        display: none !important;
    }

    .user-menu-btn {
        padding: 6px !important;
        width: 44px !important;
    }
}

/* =============================================
   تحسينات إضافية للوحة الطالب
   ============================================= */

/* تصغير عنوان الترحيب على الهواتف */
.welcome-title {
    font-size: 1.4rem;
    line-height: 1.4;
}

@media (max-width: 768px) {
    .welcome-title {
        font-size: 1.1rem !important;
        white-space: nowrap !important;
        overflow: hidden !important;
        text-overflow: ellipsis !important;
    }
}

@media (max-width: 480px) {
    .welcome-title {
        font-size: 1rem !important;
    }
}

/* البطاقات الإحصائية القابلة للنقر */
a.clickable-stat {
    text-decoration: none !important;
    color: inherit !important;
    display: flex !important;
    cursor: pointer !important;
    transition: all 0.3s ease !important;
}

a.clickable-stat:hover {
    transform: translateY(-3px) !important;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3) !important;
}

a.clickable-stat:active {
    transform: translateY(0) !important;
}

a.clickable-stat .stat-icon {
    transition: transform 0.3s ease !important;
}

a.clickable-stat:hover .stat-icon {
    transform: scale(1.1) !important;
}

@media (max-width: 768px) {
    a.clickable-stat:hover {
        transform: none !important;
    }

    a.clickable-stat:active {
        transform: scale(0.98) !important;
    }
}

/* العناوين القابلة للنقر على الموبايل */
.mobile-arrow {
    display: none;
    font-size: 0.75rem;
    margin-right: 8px;
    opacity: 0.5;
}

.clickable-header {
    cursor: default;
}

@media (max-width: 768px) {
    .desktop-only {
        display: none !important;
    }

    .mobile-arrow {
        display: inline-block !important;
    }

    .clickable-header {
        cursor: pointer !important;
    }

    .clickable-header:active {
        opacity: 0.7;
    }

    .clickable-header .card-title {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
    }
}