/* ===================================================
   منصة ثامر الرياضية والتربوية | التربية الصحية والبدنية
   المدرسة المركزية بالمنطقة الشرقية • نظام المسارات
   إشراف وتصميم: أ / ثامر بن محمد العمير • إدارة: أ / أحمد مصلح الشمراني
   =================================================== */

:root {
    --primary: #0284c7;
    --primary-dark: #0369a1;
    --primary-light: #38bdf8;
    --secondary: #d97706;
    --secondary-light: #fbbf24;
    --accent-green: #10b981;
    --accent-emerald: #059669;
    --accent-red: #ef4444;
    --accent-purple: #8b5cf6;

    /* Theme - Dark Mode (Default) */
    --bg-main: #0b1329;
    --bg-surface: #0f1c3f;
    --bg-card: #152454;
    --bg-card-hover: #1c3070;
    --bg-alt: #080f21;
    --border-color: rgba(255, 255, 255, 0.1);
    --border-highlight: rgba(56, 189, 248, 0.4);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
    --card-glow: 0 0 25px rgba(2, 132, 199, 0.25);
    --nav-bg: rgba(11, 19, 41, 0.94);

    --font-main: 'Cairo', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --radius-full: 9999px;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
    --bg-main: #f8fafc;
    --bg-surface: #ffffff;
    --bg-card: #ffffff;
    --bg-card-hover: #f1f5f9;
    --bg-alt: #f1f5f9;
    --border-color: #e2e8f0;
    --border-highlight: rgba(2, 132, 199, 0.5);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.07), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
    --card-glow: 0 0 20px rgba(2, 132, 199, 0.15);
    --nav-bg: rgba(255, 255, 255, 0.94);
}

/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-main);
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 85px;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.75;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

.container {
    width: 90%;
    max-width: 1240px;
    margin: 0 auto;
}

/* Top Progress Bar */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(to right, var(--primary-light), var(--secondary-light), var(--accent-green));
    width: 0%;
    z-index: 1000;
    transition: width 0.1s ease-out;
}

/* Navbar */
.navbar {
    position: sticky;
    top: 0;
    z-index: 999;
    background: var(--nav-bg);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 1.4rem;
    box-shadow: 0 4px 12px rgba(2, 132, 199, 0.4);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-title {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
}

.logo-badge {
    font-size: 0.74rem;
    font-weight: 700;
    color: var(--primary-light);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 16px;
    list-style: none;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 700;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
    color: var(--text-primary);
    background: rgba(56, 189, 248, 0.12);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Primary "دروسي" Button in Nav */
.nav-btn-lessons {
    background: linear-gradient(135deg, #059669, #10b981);
    color: #ffffff !important;
    font-weight: 800 !important;
    padding: 7px 18px !important;
    border-radius: var(--radius-full) !important;
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.4);
    animation: glowLessons 2s infinite alternate ease-in-out;
}

@keyframes glowLessons {
    from { box-shadow: 0 4px 14px rgba(16, 185, 129, 0.4); }
    to { box-shadow: 0 4px 22px rgba(16, 185, 129, 0.8), 0 0 10px rgba(52, 211, 153, 0.6); }
}

.nav-btn-dashboard {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #ffffff !important;
    font-weight: 800 !important;
    padding: 7px 18px !important;
    border-radius: var(--radius-full) !important;
    box-shadow: 0 4px 14px rgba(2, 132, 199, 0.35);
}

.btn-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 1.1rem;
    transition: all var(--transition-fast);
}

.btn-icon:hover {
    border-color: var(--primary-light);
    transform: scale(1.05);
}

/* Hero Section */
.hero-section {
    padding: 60px 0 50px;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.hero-glow {
    position: absolute;
    top: -120px;
    left: 50%;
    transform: translateX(-50%);
    width: 750px;
    height: 450px;
    background: radial-gradient(circle, rgba(14, 165, 233, 0.28) 0%, rgba(16, 185, 129, 0.18) 45%, transparent 70%);
    filter: blur(80px);
    pointer-events: none;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 980px;
    margin: 0 auto;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 20px;
    background: rgba(14, 165, 233, 0.14);
    border: 1px solid rgba(56, 189, 248, 0.35);
    border-radius: var(--radius-full);
    font-size: 0.86rem;
    font-weight: 800;
    color: var(--primary-light);
    margin-bottom: 22px;
}

.tag-pulse {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary-light);
    box-shadow: 0 0 10px var(--primary-light);
    animation: pulseAnim 1.6s infinite ease-in-out;
}

@keyframes pulseAnim {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.4); opacity: 0.5; }
}

/* Teacher Official Credential Box */
.teacher-credential-box {
    background: linear-gradient(135deg, rgba(21, 36, 84, 0.95), rgba(11, 19, 41, 0.95));
    border: 1px solid rgba(56, 189, 248, 0.35);
    border-radius: var(--radius-lg);
    padding: 24px 30px;
    max-width: 980px;
    margin: 0 auto 34px;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4), 0 0 20px rgba(2, 132, 199, 0.2);
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 24px;
    text-align: right;
    position: relative;
    overflow: hidden;
}

.teacher-avatar-emblem {
    font-size: 3.1rem;
    width: 82px;
    height: 82px;
    border-radius: 20px;
    border: 2px solid rgba(56, 189, 248, 0.45);
    box-shadow: 0 8px 24px rgba(2, 132, 199, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: rgba(56, 189, 248, 0.14);
}

.teacher-avatar-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
    display: block;
    transition: transform var(--transition-fast);
}

.teacher-avatar-photo:hover {
    transform: scale(1.05);
}

.teacher-details {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.teacher-role-tag {
    font-size: 0.8rem;
    font-weight: 800;
    color: var(--secondary-light);
}

.teacher-name-title {
    font-size: 1.65rem;
    font-weight: 900;
    color: #ffffff;
    letter-spacing: -0.3px;
}

.teacher-school-desc {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 0.86rem;
    color: var(--text-secondary);
}

.school-director-badge {
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 10px 18px;
    border-radius: var(--radius-md);
    text-align: center;
    backdrop-filter: blur(6px);
}

.director-label {
    display: block;
    font-size: 0.72rem;
    color: var(--text-muted);
    font-weight: 700;
}

.director-name {
    display: block;
    font-size: 0.98rem;
    font-weight: 800;
    color: var(--secondary-light);
}

.hero-title {
    font-size: 2.8rem;
    font-weight: 900;
    margin-bottom: 16px;
    line-height: 1.25;
}

.gradient-text {
    background: linear-gradient(135deg, #38bdf8, #fbbf24, #34d399);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 860px;
    margin: 0 auto 30px;
    line-height: 1.8;
}

/* Hero CTA Row with Featured "دروسي" Button */
.hero-cta-group {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 35px;
}

.btn-hero-lessons {
    background: linear-gradient(135deg, #059669, #10b981, #0284c7);
    color: #ffffff;
    font-size: 1.25rem;
    font-weight: 900;
    padding: 16px 36px;
    border-radius: var(--radius-full);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.4), 0 0 20px rgba(5, 150, 105, 0.3);
    transition: all var(--transition-normal);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.btn-hero-lessons:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 14px 40px rgba(16, 185, 129, 0.6), 0 0 30px rgba(52, 211, 153, 0.5);
    border-color: #ffffff;
}

.btn-hero-dashboard {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #ffffff;
    font-size: 1.05rem;
    font-weight: 800;
    padding: 16px 30px;
    border-radius: var(--radius-full);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 8px 25px rgba(2, 132, 199, 0.35);
    transition: all var(--transition-fast);
}

.btn-hero-dashboard:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(2, 132, 199, 0.5);
}

.btn-hero-news {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 1.05rem;
    font-weight: 800;
    padding: 16px 28px;
    border-radius: var(--radius-full);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all var(--transition-fast);
}

.btn-hero-news:hover {
    border-color: var(--border-highlight);
    background: var(--bg-surface);
    transform: translateY(-3px);
}

/* Quick Stats Bar */
.home-stats-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin: 35px 0 50px;
}

.stat-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    text-align: right;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--card-shadow);
    transition: all var(--transition-fast);
}

.stat-box:hover {
    border-color: var(--border-highlight);
    transform: translateY(-4px);
    box-shadow: var(--card-shadow), var(--card-glow);
}

.stat-icon-wrap {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.7rem;
    flex-shrink: 0;
}

.stat-icon-wrap.green { background: rgba(16, 185, 129, 0.18); border: 1px solid rgba(52, 211, 153, 0.35); }
.stat-icon-wrap.blue { background: rgba(14, 165, 233, 0.18); border: 1px solid rgba(56, 189, 248, 0.35); }
.stat-icon-wrap.gold { background: rgba(245, 158, 11, 0.18); border: 1px solid rgba(251, 191, 36, 0.35); }
.stat-icon-wrap.purple { background: rgba(139, 92, 246, 0.18); border: 1px solid rgba(167, 139, 250, 0.35); }

.stat-info h4 {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--text-primary);
    line-height: 1.2;
}

.stat-info span {
    font-size: 0.82rem;
    color: var(--text-muted);
    font-weight: 700;
}

/* Content Sections */
.home-section {
    padding: 60px 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 820px;
    margin: 0 auto 45px;
}

.section-tag {
    display: inline-block;
    font-size: 0.84rem;
    font-weight: 800;
    color: var(--primary-light);
    background: rgba(14, 165, 233, 0.14);
    padding: 4px 16px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(56, 189, 248, 0.3);
    margin-bottom: 12px;
}

.section-title {
    font-size: 2.2rem;
    font-weight: 900;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.section-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* 1. Featured Lessons Spotlight Card (دروسي) */
.lessons-spotlight-card {
    background: linear-gradient(135deg, rgba(21, 36, 84, 0.95), rgba(6, 40, 28, 0.95));
    border: 2px solid rgba(16, 185, 129, 0.4);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.5), 0 0 30px rgba(16, 185, 129, 0.2);
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 30px;
    margin-bottom: 50px;
    position: relative;
    overflow: hidden;
}

.lessons-spotlight-content h3 {
    font-size: 1.8rem;
    font-weight: 900;
    color: #ffffff;
    margin-bottom: 10px;
}

.lessons-spotlight-content p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 750px;
    margin-bottom: 18px;
}

.spotlight-pills-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.spotlight-pill {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 4px 14px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-primary);
}

.lessons-spotlight-btn-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

/* 2. News Section (متاح للزوار) */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 28px;
    margin-bottom: 40px;
}

.news-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
    cursor: pointer;
}

.news-card:hover {
    border-color: var(--border-highlight);
    transform: translateY(-6px);
    box-shadow: var(--card-shadow), var(--card-glow);
}

.news-img-box {
    height: 200px;
    position: relative;
    overflow: hidden;
    background: #0f172a;
}

.news-img-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.news-card:hover .news-img-box img {
    transform: scale(1.05);
}

.news-category-tag {
    position: absolute;
    top: 14px;
    right: 14px;
    padding: 4px 14px;
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    font-weight: 800;
    backdrop-filter: blur(8px);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.news-category-tag.sports { background: rgba(2, 132, 199, 0.8); }
.news-category-tag.announcement { background: rgba(217, 119, 6, 0.8); }
.news-category-tag.health { background: rgba(5, 150, 105, 0.8); }
.news-category-tag.saff { background: linear-gradient(135deg, #047857, #10b981); color: #ffffff; border-color: rgba(52, 211, 153, 0.5); font-weight: 900; }

/* SAFF Live Pulse Badge */
.saff-live-pulse-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 18px;
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.4);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 800;
    color: #34d399;
    margin-bottom: 14px;
}

.saff-live-pulse-badge .live-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: #10b981;
    box-shadow: 0 0 10px #10b981;
    animation: pulseDot 1.4s infinite ease-in-out;
}

@keyframes pulseDot {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.5); opacity: 0.4; }
}

/* News Controls Bar & Filter Tabs */
.news-controls-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-top: 25px;
    padding: 12px 18px;
    background: rgba(15, 28, 63, 0.5);
    border: 1px solid rgba(56, 189, 248, 0.2);
    border-radius: var(--radius-md);
}

.news-filter-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.news-tab-btn {
    padding: 8px 18px;
    border-radius: var(--radius-full);
    font-size: 0.88rem;
    font-weight: 700;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    font-family: inherit;
}

.news-tab-btn:hover {
    color: var(--text-primary);
    background: rgba(56, 189, 248, 0.12);
    border-color: rgba(56, 189, 248, 0.4);
}

.news-tab-btn.active {
    background: linear-gradient(135deg, #059669, #10b981);
    color: #ffffff;
    border-color: #34d399;
    font-weight: 800;
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
}

.news-live-status {
    display: flex;
    align-items: center;
    gap: 12px;
}

.news-last-updated {
    font-size: 0.82rem;
    color: var(--text-muted);
    font-weight: 600;
}

.btn-refresh-news {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 16px;
    background: rgba(14, 165, 233, 0.15);
    border: 1px solid rgba(56, 189, 248, 0.35);
    border-radius: var(--radius-full);
    font-size: 0.84rem;
    font-weight: 800;
    color: var(--primary-light);
    cursor: pointer;
    font-family: inherit;
    transition: all var(--transition-fast);
}

.btn-refresh-news:hover {
    background: rgba(14, 165, 233, 0.25);
    border-color: var(--primary-light);
    transform: translateY(-2px);
}

.btn-refresh-news.spinning span:first-child {
    display: inline-block;
    animation: spinRefresh 0.8s infinite linear;
}

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

.btn-official-saff-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 18px;
    padding: 10px 22px;
    background: linear-gradient(135deg, #047857, #10b981);
    color: #ffffff;
    font-weight: 800;
    font-size: 0.95rem;
    border-radius: var(--radius-full);
    text-decoration: none;
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.4);
    transition: all var(--transition-fast);
}

.btn-official-saff-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.6);
}

.news-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.news-meta-row {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.news-title {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 10px;
    line-height: 1.4;
}

.news-excerpt {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}

.news-read-more {
    margin-top: auto;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.88rem;
    font-weight: 800;
    color: var(--primary-light);
    text-decoration: none;
}

/* 3. Photo & Activity Gallery */
.gallery-filter-pills {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-bottom: 30px;
}

.gallery-pill {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 8px 20px;
    border-radius: var(--radius-full);
    font-size: 0.88rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.gallery-pill:hover, .gallery-pill.active {
    background: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(2, 132, 199, 0.35);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    height: 240px;
    cursor: pointer;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border-color);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-item:hover img {
    transform: scale(1.08);
}

.gallery-item-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(11, 19, 41, 0.9) 0%, transparent 70%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 16px;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.gallery-item:hover .gallery-item-overlay {
    opacity: 1;
}

.gallery-item-title {
    font-size: 1rem;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 4px;
}

.gallery-item-desc {
    font-size: 0.78rem;
    color: var(--text-secondary);
}

/* 4. Platform Portals Showcase (بوابات الدخول) */
.portals-showcase-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 28px;
    margin-bottom: 40px;
}

.portal-role-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--card-shadow);
    display: flex;
    flex-direction: column;
    text-align: right;
    transition: all var(--transition-fast);
}

.portal-role-card:hover {
    border-color: var(--border-highlight);
    transform: translateY(-5px);
}

.portal-role-card.admin { border-top: 4px solid #ef4444; }
.portal-role-card.operator { border-top: 4px solid var(--secondary); }
.portal-role-card.student { border-top: 4px solid var(--accent-green); }

.role-icon-box {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 18px;
}

.role-icon-box.admin { background: rgba(239, 68, 68, 0.15); border: 1px solid rgba(239, 68, 68, 0.3); }
.role-icon-box.operator { background: rgba(245, 158, 11, 0.15); border: 1px solid rgba(251, 191, 36, 0.3); }
.role-icon-box.student { background: rgba(16, 185, 129, 0.15); border: 1px solid rgba(52, 211, 153, 0.3); }

.role-title {
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.role-desc {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.role-features-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 24px;
}

.role-features-list li {
    font-size: 0.85rem;
    color: var(--text-secondary);
    position: relative;
    padding-right: 20px;
}

.role-features-list li::before {
    content: '✔';
    position: absolute;
    right: 0;
    color: var(--primary-light);
    font-weight: 900;
}

.role-btn {
    margin-top: auto;
    text-align: center;
    padding: 12px;
    border-radius: var(--radius-md);
    font-weight: 800;
    text-decoration: none;
    display: block;
    transition: all var(--transition-fast);
}

.role-btn.admin { background: linear-gradient(135deg, #ef4444, #dc2626); color: #ffffff; }
.role-btn.operator { background: linear-gradient(135deg, var(--secondary), #b45309); color: #ffffff; }
.role-btn.student { background: linear-gradient(135deg, var(--accent-green), #059669); color: #ffffff; }

/* Interactive Modals (News Viewer & Lightbox) */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-overlay.active {
    display: flex;
}

.modal-content-box {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 760px;
    max-height: 90vh;
    overflow-y: auto;
    padding: 30px;
    position: relative;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7);
    animation: modalIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.92); }
    to { opacity: 1; transform: scale(1); }
}

.modal-close-btn {
    position: absolute;
    top: 20px;
    left: 20px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.modal-close-btn:hover {
    background: #ef4444;
    color: #ffffff;
}

/* Footer */
.footer {
    background: var(--bg-alt);
    border-top: 1px solid var(--border-color);
    padding: 50px 0 24px;
    margin-top: 60px;
}

.footer-container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    margin-bottom: 30px;
}

.footer-info {
    max-width: 600px;
}

.footer-vision {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 14px 20px;
    border-radius: var(--radius-md);
}

/* Responsive */
@media (max-width: 900px) {
    .teacher-credential-box {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .teacher-avatar-emblem {
        margin: 0 auto;
    }
    .lessons-spotlight-card {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-title {
        font-size: 2.1rem;
    }
    .nav-links {
        display: none;
    }
}