/* ==========================================================================
   منصة الدروس والمحاضرات الإسلامية - نظام التصميم الشامل (Design System)
   السمات والألوان تُدار وتُقرأ ديناميكياً من config.js
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Amiri:ital,wght@0,400;0,700;1,400&family=IBM+Plex+Sans+Arabic:wght@300;400;500;600;700&family=Scheherazade+New:wght@400;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20..48,100..700,0..1,-50..200');

:root {
    /* الألوان الأساسية الافتراضية (يتم تحديثها تلقائياً من config.js) */
    --color-primary: #003527;
    --color-primary-container: #064e3b;
    --color-primary-fixed: #b0f0d6;
    --color-on-primary: #ffffff;
    
    --color-secondary: #5f5e58;
    --color-secondary-container: #e5e2da;
    --color-on-secondary: #ffffff;
    
    --color-tertiary: #3e2a00;
    --color-tertiary-container: #d6ab5b;
    --color-tertiary-fixed: #ffdea8;
    
    --color-background: #f8f9fa;
    --color-surface: #ffffff;
    --color-surface-variant: #edeeef;
    --color-surface-low: #f3f4f5;
    
    --color-text-primary: #191c1d;
    --color-text-secondary: #404944;
    --color-text-muted: #707974;
    
    --color-outline: #707974;
    --color-outline-variant: #bfc9c3;
    
    --color-error: #ba1a1a;
    --color-error-container: #ffdad6;

    /* الخطوط */
    --font-main: 'IBM Plex Sans Arabic', sans-serif;
    --font-quran: 'Amiri', 'Scheherazade New', serif;
    --font-reader-size: 18px;
    --font-reader-family: 'IBM Plex Sans Arabic', sans-serif;

    /* التأثيرات والظلال والزوايا */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(6, 78, 59, 0.08);
    --shadow-lg: 0 10px 25px rgba(6, 78, 59, 0.12);
    --shadow-player: 0 -4px 20px rgba(0, 53, 39, 0.12);

    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   الوضع الليلي (Dark Mode)
   ========================================================================== */
[data-theme="dark"] {
    --color-background: #0f1412;
    --color-surface: #17201c;
    --color-surface-variant: #1e2924;
    --color-surface-low: #141c18;
    --color-text-primary: #e6ede9;
    --color-text-secondary: #a3b5ad;
    --color-text-muted: #73857d;
    --color-outline-variant: #283831;
    --color-primary: #1f6b53;
    --color-primary-container: #0b4534;
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
    --shadow-player: 0 -4px 20px rgba(0, 0, 0, 0.6);
}

/* ==========================================================================
   وضع القراءة المريحة (Sepia Mode)
   ========================================================================== */
[data-theme="sepia"] {
    --color-background: #f4ede2;
    --color-surface: #faf4ea;
    --color-surface-variant: #ede2d2;
    --color-surface-low: #eee5d7;
    --color-text-primary: #3b2e21;
    --color-text-secondary: #5e4b38;
    --color-text-muted: #826c54;
    --color-outline-variant: #d9cbba;
    --color-primary: #3e2a00;
    --color-primary-container: #6d4c06;
}

/* ==========================================================================
   إعادة الضبط والأساسيات (Reset & Base)
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.6;
    scroll-behavior: smooth;
    direction: rtl;
    text-align: right;
    -webkit-text-size-adjust: 100%;
}

body {
    background-color: var(--color-background);
    color: var(--color-text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    outline: none;
}

input, select, textarea {
    font-family: inherit;
}

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

/* Material Symbols Config */
.material-symbols-outlined {
    font-family: 'Material Symbols Outlined';
    font-weight: normal;
    font-style: normal;
    font-size: 24px;
    line-height: 1;
    display: inline-block;
    text-transform: none;
    letter-spacing: normal;
    word-wrap: normal;
    white-space: nowrap;
    direction: ltr;
    vertical-align: middle;
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

.material-symbols-outlined.fill {
    font-variation-settings: 'FILL' 1;
}

/* شريط التمرير المخصص */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--color-outline-variant);
    border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* ==========================================================================
   الحاوية والشبكة العامة (Layout & Container)
   ========================================================================== */
.container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 16px;
}

@media (min-width: 768px) {
    .container {
        padding: 0 24px;
    }
}

/* ==========================================================================
   رأس الصفحة وشريط التنقل العلوي (Header & Top Navigation)
   ========================================================================== */
.site-header {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-outline-variant);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background-color var(--transition-normal);
}

[data-theme="dark"] .site-header {
    background: rgba(23, 32, 28, 0.92);
}

[data-theme="sepia"] .site-header {
    background: rgba(250, 244, 234, 0.92);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
    gap: 16px;
}

.brand-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-logo-icon {
    width: 42px;
    height: 42px;
    background: var(--color-primary);
    color: var(--color-on-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
}

.brand-text h1 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.2;
}

[data-theme="dark"] .brand-text h1 {
    color: var(--color-primary-fixed);
}

.brand-text p {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.nav-links-desktop {
    display: none;
    align-items: center;
    gap: 8px;
}

@media (min-width: 900px) {
    .nav-links-desktop {
        display: flex;
    }
}

.nav-link {
    padding: 8px 16px;
    border-radius: var(--radius-full);
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all var(--transition-fast);
}

.nav-link:hover {
    background: var(--color-surface-variant);
    color: var(--color-primary);
}

.nav-link.active {
    background: var(--color-primary-container);
    color: var(--color-on-primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    background: var(--color-surface-low);
    border: 1px solid var(--color-outline-variant);
    transition: all var(--transition-fast);
}

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

.mobile-menu-toggle {
    display: flex;
}

@media (min-width: 900px) {
    .mobile-menu-toggle {
        display: none;
    }
}

/* ==========================================================================
   بنر الترحيب والهيرو (Hero Section)
   ========================================================================== */
.hero-section {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-container) 100%);
    color: var(--color-on-primary);
    padding: 48px 0;
    position: relative;
    overflow: hidden;
    border-bottom: 3px solid var(--color-tertiary-container);
}

.hero-pattern {
    position: absolute;
    inset: 0;
    opacity: 0.05;
    background-image: radial-gradient(#ffffff 1px, transparent 1px);
    background-size: 20px 20px;
}

.hero-content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

@media (min-width: 768px) {
    .hero-content {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
}

.hero-text {
    max-width: 650px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background: rgba(214, 171, 91, 0.2);
    border: 1px solid var(--color-tertiary-container);
    color: var(--color-tertiary-fixed);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.hero-title {
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 10px;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 2.3rem;
    }
}

.hero-subtitle {
    font-size: 1rem;
    line-height: 1.7;
    opacity: 0.9;
}

.hero-sheikh-card {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-lg);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    min-width: 280px;
}

.sheikh-avatar {
    width: 68px;
    height: 68px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 2px solid var(--color-tertiary-container);
}

.sheikh-info h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 2px;
}

.sheikh-info span {
    font-size: 0.85rem;
    color: var(--color-tertiary-fixed);
    display: block;
    margin-bottom: 6px;
}

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

/* ==========================================================================
   شريط البحث السريع والوسوم (Quick Search Bar & Tags)
   ========================================================================== */
.search-container {
    background: var(--color-surface);
    border: 1px solid var(--color-outline-variant);
    border-radius: var(--radius-lg);
    padding: 6px 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.search-container:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 53, 39, 0.12);
}

.search-input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 8px 4px;
    font-size: 0.95rem;
    color: var(--color-text-primary);
    outline: none;
}

.search-input::placeholder {
    color: var(--color-text-muted);
}

.quick-tags-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 12px;
}

.tag-btn {
    padding: 4px 12px;
    border-radius: var(--radius-full);
    background: var(--color-surface-low);
    border: 1px solid var(--color-outline-variant);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: all var(--transition-fast);
}

.tag-btn:hover, .tag-btn.active {
    background: var(--color-primary);
    color: var(--color-on-primary);
    border-color: var(--color-primary);
}

/* ==========================================================================
   بنر المواسم والشهور (Season Spotlight Banner)
   ========================================================================== */
.season-banner {
    background: linear-gradient(135deg, var(--color-tertiary-container) 0%, #a67c1e 100%);
    color: var(--color-on-secondary-fixed);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin: 28px 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

@media (min-width: 768px) {
    .season-banner {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
}

.season-banner-content h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.season-banner-content p {
    font-size: 0.95rem;
    opacity: 0.95;
    line-height: 1.6;
}

.btn-primary-action {
    padding: 10px 20px;
    border-radius: var(--radius-md);
    background: var(--color-primary);
    color: var(--color-on-primary);
    font-weight: 600;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-primary-action:hover {
    background: var(--color-primary-container);
    transform: translateY(-2px);
}

/* ==========================================================================
   شبكة وتخطيط المكتبة بالشريط الجانبي (Library & Sidebar Layout)
   ========================================================================== */
.library-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    margin: 32px 0;
}

@media (min-width: 992px) {
    .library-layout {
        grid-template-columns: 290px 1fr;
    }
}

.filter-sidebar {
    background: var(--color-surface);
    border: 1px solid var(--color-outline-variant);
    border-radius: var(--radius-lg);
    padding: 20px;
    height: fit-content;
    position: sticky;
    top: 88px;
}

.sidebar-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--color-outline-variant);
    padding-bottom: 10px;
}

[data-theme="dark"] .sidebar-title {
    color: var(--color-primary-fixed);
}

.filter-group {
    margin-bottom: 20px;
}

.filter-group-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: 10px;
    display: block;
}

.filter-options-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.filter-btn {
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    background: transparent;
    border: 1px solid transparent;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    text-align: right;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    transition: all var(--transition-fast);
}

.filter-btn:hover {
    background: var(--color-surface-variant);
    color: var(--color-text-primary);
}

.filter-btn.active {
    background: var(--color-primary-container);
    color: var(--color-on-primary);
    font-weight: 600;
}

.filter-badge {
    font-size: 0.75rem;
    padding: 2px 6px;
    border-radius: var(--radius-full);
    background: var(--color-surface-low);
    color: var(--color-text-muted);
}

.filter-btn.active .filter-badge {
    background: rgba(255, 255, 255, 0.2);
    color: #ffffff;
}

/* ==========================================================================
   بطاقات الدروس والمحتوى (Lesson Cards)
   ========================================================================== */
.lessons-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

@media (min-width: 640px) {
    .lessons-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
}

.lesson-card {
    background: var(--color-surface);
    border: 1px solid var(--color-outline-variant);
    border-radius: var(--radius-lg);
    padding: 18px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 14px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    position: relative;
}

.lesson-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.lesson-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.type-pill {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
}

.type-pill.audio {
    background: rgba(0, 53, 39, 0.1);
    color: var(--color-primary);
}

[data-theme="dark"] .type-pill.audio {
    background: rgba(176, 240, 214, 0.15);
    color: var(--color-primary-fixed);
}

.type-pill.text {
    background: rgba(214, 171, 91, 0.15);
    color: var(--color-tertiary);
}

.card-favorite-btn {
    color: var(--color-text-muted);
    padding: 4px;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.card-favorite-btn:hover {
    color: var(--color-error);
}

.card-favorite-btn.active {
    color: var(--color-error);
}

.lesson-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text-primary);
    line-height: 1.4;
    margin-bottom: 6px;
}

.lesson-summary {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.lesson-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    border-top: 1px solid var(--color-surface-low);
    padding-top: 10px;
}

.lesson-card-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-card-read {
    flex: 1;
    padding: 8px 12px;
    background: var(--color-surface-low);
    border: 1px solid var(--color-outline-variant);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: 0.85rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: all var(--transition-fast);
}

.btn-card-read:hover {
    background: var(--color-surface-variant);
    border-color: var(--color-primary);
}

.btn-card-play {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-md);
    background: var(--color-primary);
    color: var(--color-on-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.btn-card-play:hover {
    background: var(--color-primary-container);
    transform: scale(1.05);
}

/* ==========================================================================
   صفحة تفاصيل وقارئ الدرس (Lesson Reader View)
   ========================================================================== */
.reader-container {
    max-width: 860px;
    margin: 32px auto 80px;
    background: var(--color-surface);
    border: 1px solid var(--color-outline-variant);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.reader-header {
    padding: 24px 24px 16px;
    border-bottom: 1px solid var(--color-outline-variant);
    background: var(--color-surface-low);
}

.reader-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    padding: 12px 24px;
    background: var(--color-surface-variant);
    border-bottom: 1px solid var(--color-outline-variant);
}

.font-controls {
    display: flex;
    align-items: center;
    gap: 6px;
}

.quran-box {
    margin: 24px 0;
    padding: 24px;
    background: var(--color-surface-low);
    border: 1px solid var(--color-tertiary-container);
    border-radius: var(--radius-md);
    text-align: center;
    position: relative;
}

.quran-verse-text {
    font-family: var(--font-quran);
    font-size: 1.5rem;
    line-height: 2.2;
    color: var(--color-primary);
    font-weight: 700;
}

[data-theme="dark"] .quran-verse-text {
    color: var(--color-tertiary-fixed);
}

.quran-verse-ref {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-top: 8px;
}

.transcript-body {
    padding: 32px 24px;
    font-size: var(--font-reader-size);
    font-family: var(--font-reader-family);
    line-height: 2.2;
    color: var(--color-text-primary);
    text-align: justify;
}

.transcript-body p {
    margin-bottom: 20px;
}

.attachments-section {
    padding: 24px;
    background: var(--color-surface-low);
    border-top: 1px solid var(--color-outline-variant);
}

.attachment-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--color-surface);
    border: 1px solid var(--color-outline-variant);
    border-radius: var(--radius-md);
    margin-top: 10px;
    transition: all var(--transition-fast);
}

.attachment-item:hover {
    border-color: var(--color-primary);
}

/* ==========================================================================
   مشغل الصوتيات الاحترافي العائم (Professional Sticky Audio Player)
   يحتوي على زر إغلاق وإلغاء، أزرار تقديم/تأخير، التحكم بالسرعة، وشريط زمني
   ========================================================================== */
.global-audio-player {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-top: 2px solid var(--color-primary);
    box-shadow: var(--shadow-player);
    z-index: 200;
    padding: 10px 16px;
    display: none; /* يظهر عبر JS عند التشغيل */
    backdrop-filter: blur(16px);
    transition: transform var(--transition-slow);
}

.global-audio-player.active {
    display: block;
    animation: slideUp 0.3s ease forwards;
}

@keyframes slideUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
}

.player-inner {
    max-width: 1240px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.player-top-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.player-track-info {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
    flex: 1;
}

.player-track-avatar {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: var(--color-primary-container);
    color: var(--color-on-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.player-track-details {
    min-width: 0;
}

.player-track-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.player-track-sub {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.player-main-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.player-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.player-btn:hover {
    background: var(--color-surface-variant);
    color: var(--color-primary);
}

.player-btn-play {
    width: 46px;
    height: 46px;
    background: var(--color-primary);
    color: var(--color-on-primary);
    border-radius: var(--radius-full);
}

.player-btn-play:hover {
    background: var(--color-primary-container);
    transform: scale(1.06);
}

.player-extra-actions {
    display: flex;
    align-items: center;
    gap: 6px;
}

.speed-select-btn {
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    background: var(--color-surface-low);
    border: 1px solid var(--color-outline-variant);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-text-secondary);
}

.player-btn-close {
    color: var(--color-error);
}

.player-btn-close:hover {
    background: var(--color-error-container);
}

/* شريط التقدم */
.player-progress-row {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.scrubber-bar {
    flex: 1;
    height: 6px;
    background: var(--color-surface-variant);
    border-radius: var(--radius-full);
    position: relative;
    cursor: pointer;
}

.scrubber-fill {
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    background: var(--color-primary);
    border-radius: var(--radius-full);
    width: 0%;
}

/* ==========================================================================
   نظام الإشعارات والنوافذ المنبثقة المخصص (Custom Toasts & Modals)
   ممنوع alert نهائياً
   ========================================================================== */
#toast-container {
    position: fixed;
    top: 24px;
    left: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 380px;
    pointer-events: none;
}

.custom-toast {
    background: var(--color-surface);
    color: var(--color-text-primary);
    border: 1px solid var(--color-outline-variant);
    border-right: 4px solid var(--color-primary);
    border-radius: var(--radius-md);
    padding: 14px 18px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    pointer-events: auto;
    animation: toastIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    transition: all var(--transition-normal);
}

.custom-toast.success { border-right-color: #2e7d32; }
.custom-toast.error { border-right-color: #ba1a1a; }
.custom-toast.info { border-right-color: #0288d1; }

@keyframes toastIn {
    from { opacity: 0; transform: translateX(-40px); }
    to { opacity: 1; transform: translateX(0); }
}

.custom-toast.toast-out {
    opacity: 0;
    transform: translateX(-40px);
}

/* ==========================================================================
   شريط التنقل السفلي للهواتف (Mobile Bottom Bar)
   ========================================================================== */
.mobile-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 62px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-top: 1px solid var(--color-outline-variant);
    display: flex;
    align-items: center;
    justify-content: space-around;
    z-index: 90;
}

[data-theme="dark"] .mobile-bottom-nav {
    background: rgba(23, 32, 28, 0.95);
}

[data-theme="sepia"] .mobile-bottom-nav {
    background: rgba(250, 244, 234, 0.95);
}

@media (min-width: 900px) {
    .mobile-bottom-nav {
        display: none;
    }
}

.mobile-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.mobile-nav-item.active {
    color: var(--color-primary);
    font-weight: 700;
}

/* ==========================================================================
   الفوتر التذييلي (Site Footer)
   ========================================================================== */
.site-footer {
    background: var(--color-surface-low);
    border-top: 1px solid var(--color-outline-variant);
    padding: 48px 0 90px;
    margin-top: auto;
}

@media (min-width: 900px) {
    .site-footer {
        padding-bottom: 48px;
    }
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr;
    }
}

.footer-col h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 14px;
}

[data-theme="dark"] .footer-col h4 {
    color: var(--color-primary-fixed);
}

.footer-col p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.social-links-grid {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 14px;
}

.social-btn {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-full);
    background: var(--color-surface);
    border: 1px solid var(--color-outline-variant);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.social-btn:hover {
    background: var(--color-primary);
    color: #ffffff;
    border-color: var(--color-primary);
}

.footer-bottom {
    border-top: 1px solid var(--color-outline-variant);
    margin-top: 36px;
    padding-top: 20px;
    text-align: center;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}