/* ================== Global Styles & Variables ================== */
:root {
    --primary-color: #6D28D9;
    --primary-hover: #5B21B6;
    --secondary-color: #F3F4F6;
    --text-dark: #111827;
    --text-light: #6B7280;
    --background-color: #FFFFFF;
    --border-color: #E5E7EB;
    --font-family: 'Tajawal', sans-serif;
    --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.07), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --border-radius: 12px;
}

body {
    margin: 0;
    font-family: var(--font-family);
    direction: rtl;
    background-color: var(--background-color);
    color: var(--text-dark);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-title {
    font-size: 36px;
    font-weight: 800;
    text-align: center;
    margin-bottom: 60px;
    color: var(--text-dark);
}

/* ================== Header ================== */
.main-header {
    background-color: var(--background-color);
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: box-shadow 0.3s ease;
}

.main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 26px;
    font-weight: 800;
    color: var(--primary-color);
    text-decoration: none;
}

.main-nav a {
    margin: 0 20px;
    text-decoration: none;
    color: var(--text-light);
    font-weight: 500;
    transition: color 0.3s ease;
}

.main-nav a:hover {
    color: var(--primary-color);
}

.btn {
    padding: 12px 24px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 700;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

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

.btn-secondary {
    background-color: transparent;
    color: var(--text-dark);
}

.btn-secondary:hover {
    background-color: var(--secondary-color);
}

/* ================== Hero Section ================== */
.hero-section {
    background-color: #111827;
    background-image: linear-gradient(rgba(17, 24, 39, 0.8), rgba(17, 24, 39, 0.8)), url('https://images.unsplash.com/photo-1454165804606-c3d57bc86b40?q=80&w=2070&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    color: white;
    text-align: center;
    padding: 120px 0;
}

.hero-title {
    font-size: 52px;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.3;
}

.hero-subtitle {
    font-size: 18px;
    margin-bottom: 2.5rem;
    max-width: 60rem; /* Adjusted for clarity */
    margin-left: auto;
    margin-right: auto;
    color: rgba(255, 255, 255, 0.8);
}

.search-bar-wrapper {
    display: flex;
    max-width: 600px;
    margin: auto;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    position: relative;
}

.search-input {
    width: 100%;
    padding: 18px 25px;
    font-size: 16px;
    border: none;
    outline: none;
    font-family: var(--font-family);
}

.search-button {
    padding: 0 25px;
    border: none;
    background-color: var(--primary-color);
    color: white;
    font-size: 20px;
    cursor: pointer;
}

.search-results-popup {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: right;
    overflow: hidden;
    z-index: 10;
}

.results-category {
    padding: 15px 20px;
}

.results-category:not(:last-child) {
    border-bottom: 1px solid var(--border-color);
}

.results-category h4 {
    margin: 0 0 10px 0;
    font-size: 14px;
    color: var(--text-light);
}

.results-category ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.results-category li a {
    display: flex;
    align-items: center;
    padding: 10px;
    margin: 0 -10px;
    color: var(--text-dark);
    text-decoration: none;
    border-radius: 8px;
    transition: background-color 0.2s ease;
}

.results-category li a:hover {
    background-color: var(--secondary-color);
}

.results-category li a span {
    margin-left: 15px;
    color: var(--primary-color);
    width: 20px;
    text-align: center;
}

/* ================== Stats Section ================== */
.stats-section {
    background-color: var(--secondary-color);
    padding: 60px 0;
}

.stats-section .container {
    display: flex;
    justify-content: space-around;
    text-align: center;
    flex-wrap: wrap;
}

.stat-item {
    color: var(--text-dark);
    min-width: 180px;
    padding: 20px;
}

.stat-icon {
    font-size: 36px;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.stat-number {
    display: block;
    font-size: 32px;
    font-weight: 800;
}

.stat-label {
    display: block;
    font-size: 16px;
    color: var(--text-light);
}

/* ================== Featured Courses Section ================== */
.featured-courses {
    padding: 100px 0;
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.course-card {
    background-color: var(--background-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

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

.course-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.course-content {
    padding: 25px;
}

.course-category {
    display: inline-block;
    padding: 5px 12px;
    background-color: var(--secondary-color);
    color: var(--primary-color);
    font-weight: 700;
    font-size: 12px;
    border-radius: 20px;
    margin-bottom: 15px;
}

.course-title {
    font-size: 20px;
    font-weight: 700;
    margin: 0 0 15px 0;
    line-height: 1.4;
    color: var(--text-dark);
}

.course-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-light);
    font-size: 14px;
    margin-bottom: 20px;
}

.course-meta .fa-star {
    color: #FBBF24; /* Yellow for stars */
}

.course-price {
    font-size: 22px;
    font-weight: 800;
    color: var(--primary-color);
}

.course-price.free {
    color: #10B981; /* Green for free */
}

/* ================== Features Section ================== */
.features-section {
    padding: 100px 0;
    background-color: var(--secondary-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    text-align: center;
}

.feature-icon-wrapper {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px auto;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
}

.feature-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 10px;
}

.feature-description {
    color: var(--text-light);
    line-height: 1.6;
}

/* ================== Instructors Section ================== */
.instructors-section {
    padding: 100px 0;
}

.instructors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    text-align: center;
}

.instructor-card {
    padding: 20px;
}

.instructor-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 20px;
    border: 5px solid var(--background-color);
    box-shadow: var(--shadow);
}

.instructor-name {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 5px;
}

.instructor-title {
    color: var(--text-light);
    font-size: 15px;
}

/* ================== Footer ================== */
.main-footer {
    background-color: var(--text-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 80px 0 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.footer-title {
    font-size: 18px;
    font-weight: 700;
    color: white;
    margin-bottom: 20px;
}

.footer-col ul {
    list-style: none;
    padding: 0;
}

.footer-col li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    display: block;
    margin-bottom: 10px;
    transition: color 0.3s ease;
}

.footer-col li a:hover {
    color: white;
}

.social-links a {
    color: white;
    font-size: 22px;
    margin-left: 15px;
}

.footer-bottom {
    text-align: center;
    padding: 25px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ================================================================ */
/* =========== Styles for All Courses Page ======================== */
/* ================================================================ */

.page-title-bar {
    background-color: var(--secondary-color);
    padding: 40px 0;
    border-bottom: 1px solid var(--border-color);
}

.page-title-bar h1 {
    font-size: 32px;
    font-weight: 800;
    margin: 0 0 10px 0;
}

.breadcrumbs a {
    color: var(--text-light);
    text-decoration: none;
}

.breadcrumbs span {
    color: var(--text-light);
    margin: 0 5px;
}

.breadcrumbs a:hover {
    color: var(--primary-color);
}

.page-content-area .container {
    display: flex;
    align-items: flex-start;
    gap: 40px;
    padding-top: 60px;
    padding-bottom: 60px;
}

.filters-sidebar {
    width: 280px;
    flex-shrink: 0;
    background-color: var(--background-color);
    padding: 30px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
}

.filter-group {
    padding-bottom: 25px;
    margin-bottom: 25px;
    border-bottom: 1px solid var(--border-color);
}

.filter-group:last-child {
    border-bottom: none;
    padding-bottom: 0;
    margin-bottom: 0;
}

.filter-title {
    font-size: 18px;
    font-weight: 700;
    margin: 0 0 20px 0;
}

.filter-search-input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-sizing: border-box;
    background-color: var(--secondary-color);
}

.filter-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.filter-list li {
    margin-bottom: 15px;
}

.filter-list label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: 500;
    position: relative;
    padding-right: 30px;
}

.filter-list input[type="checkbox"],
.filter-list input[type="radio"] {
    opacity: 0;
    position: absolute;
    width: 0;
    height: 0;
}

.filter-list label::before {
    content: '';
    position: absolute;
    right: 0;
    top: 2px;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--secondary-color);
    transition: all 0.2s ease;
}

.filter-list input[type="radio"]+label>span {
    display: inline-block;
}

.filter-list input[type="radio"]+label::before {
    border-radius: 50%;
}

.filter-list input:checked+label::before {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.filter-list label::after {
    content: '';
    position: absolute;
    right: 7px;
    top: 6px;
    width: 6px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
    opacity: 0;
    transition: opacity 0.2s ease;
}

.filter-list input[type="radio"]:checked+label::after {
    width: 10px;
    height: 10px;
    background-color: white;
    border-radius: 50%;
    border: none;
    right: 5px;
    top: 7px;
}

.filter-list input:checked+label::after {
    opacity: 1;
}

.filter-apply-btn {
    width: 100%;
    margin-top: 20px;
    padding: 14px;
}

.courses-main-content {
    flex-grow: 1;
}

.sort-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background-color: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-bottom: 30px;
    color: var(--text-light);
}

.sort-dropdown {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: white;
    font-family: var(--font-family);
    font-weight: 500;
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 50px;
}

.page-number,
.page-arrow {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    margin: 0 5px;
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-dark);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.page-number.active,
.page-number:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.mobile-filter-trigger {
    display: none;
    width: 100%;
    padding: 15px;
    font-size: 16px;
    font-weight: 700;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    cursor: pointer;
}

.mobile-filter-trigger .fa-filter {
    margin-left: 10px;
}

/* ================== Mobile & Responsive Styles ================== */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-dark);
    cursor: pointer;
}

.mobile-nav {
    display: none;
    flex-direction: column;
    background-color: white;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    padding: 20px;
    box-shadow: var(--shadow);
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.mobile-nav a {
    padding: 15px 0;
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 700;
    border-bottom: 1px solid var(--border-color);
}

.mobile-nav a:last-of-type {
    border-bottom: none;
}

.mobile-nav .btn-primary {
    margin-top: 15px;
}

@media (max-width: 992px) {
    .main-nav,
    .header-actions {
        display: none;
    }
    .mobile-menu-toggle {
        display: block;
    }
    .hero-title {
        font-size: 40px;
    }
    .page-content-area .container {
        flex-direction: column;
    }
    .filters-sidebar {
        display: none;
        width: 100%;
        box-sizing: border-box;
    }
    .filters-sidebar.active {
        display: block;
    }
    .courses-main-content {
        width: 100%;
    }
    .mobile-filter-trigger {
        display: block;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 32px;
    }
    .hero-subtitle {
        font-size: 16px;
    }
    .section-title {
        font-size: 28px;
    }
}

/* ================================================================ */
/* ============= Styles for Course Details Page =================== */
/* ================================================================ */

.course-title-bar {
    background-color: var(--text-dark);
    color: white;
    padding: 50px 0;
}

.course-title-bar .breadcrumbs a,
.course-title-bar .breadcrumbs span {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

.course-title-bar .breadcrumbs a:hover {
    color: white;
}

.course-title-bar h1 {
    font-size: 38px;
    margin: 10px 0;
}

.course-title-bar .course-short-description {
    font-size: 18px;
    max-width: 700px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.course-meta-info {
    margin-top: 20px;
    display: flex;
    gap: 25px;
    font-size: 14px;
}

.course-meta-info .fa-star {
    color: #FBBF24;
}

.course-meta-info a {
    color: white;
    text-decoration: underline;
}

.course-details-main {
    flex-grow: 1;
}

.learning-box {
    border: 1px solid var(--border-color);
    padding: 30px;
    border-radius: var(--border-radius);
    margin-bottom: 40px;
}

.learning-box h2 {
    margin: 0 0 20px 0;
}

.learning-box ul {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.learning-box li {
    display: flex;
    align-items: flex-start;
}

.learning-box .fa-check {
    color: var(--primary-color);
    margin-left: 10px;
    margin-top: 5px;
}

.curriculum-section h2 {
    margin-bottom: 20px;
}

.curriculum-module {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 10px;
    overflow: hidden;
}

.module-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background-color: var(--secondary-color);
    cursor: pointer;
    font-weight: 700;
}

.module-header .fa-chevron-down {
    transition: transform 0.3s ease;
}

.curriculum-module.active .module-header .fa-chevron-down {
    transform: rotate(180deg);
}

.module-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out;
}
.curriculum-module.active .module-content {
    max-height: 1000px; /* أو أي رقم كبير يكفي المحتوى */
    opacity: 1;
}
.lesson-item {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    border-top: 1px solid var(--border-color);
}

.lesson-item i {
    color: var(--text-light);
    margin-left: 15px;
    width: 20px;
}

.lesson-item a {
    margin-right: auto;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.instructor-bio-section {
    margin-top: 50px;
}

.instructor-bio-box {
    display: flex;
    align-items: center;
    gap: 20px;
}

.instructor-bio-box img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
}

.instructor-info h3 {
    margin: 0 0 5px 0;
}

.instructor-info p {
    margin: 0;
    color: var(--text-light);
}

.purchase-sidebar {
    width: 340px;
    flex-shrink: 0;
    position: sticky;
    top: 120px;
    /* Adjust based on header height */
}

.purchase-card {
    background-color: white;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.video-preview {
    display: block;
    position: relative;
    text-align: center;
}

.video-preview img {
    width: 100%;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.video-preview .fa-play {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 50px;
    color: white;
    opacity: 0.8;
}

.video-preview span {
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-weight: 700;
}

.price-info {
    padding: 25px;
    text-align: right;
}

.current-price {
    font-size: 32px;
    font-weight: 800;
}

.original-price {
    font-size: 18px;
    color: var(--text-light);
    text-decoration: line-through;
    margin-right: 10px;
}

.btn-fullwidth {
    width: calc(100% - 50px);
    margin: 0 25px;
    padding: 15px;
    font-size: 16px;
}

.course-features-list {
    padding: 25px;
}

.course-features-list h4 {
    margin: 0 0 15px 0;
}

.course-features-list ul {
    list-style: none;
    padding: 0;
    margin: 0;
    color: var(--text-light);
}

.course-features-list li {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.course-features-list i {
    margin-left: 10px;
    width: 20px;
    color: var(--text-dark);
}

/* ================== Mobile Responsive (Course Details) ================== */
@media (max-width: 992px) {
    .course-details-main {
        order: 2;
        /* Main content appears second */
    }
    .purchase-sidebar {
        order: 1;
        /* Purchase card appears first */
        position: static;
        width: 100%;
        margin-bottom: 40px;
    }
    .learning-box ul {
        grid-template-columns: 1fr;
    }
}

/* ================================================================ */
/* =========== Styles for Lesson Player Page ====================== */
/* ================================================================ */

body.lesson-player-page {
    background-color: #f8f9fa;
    display: flex;
    flex-direction: column;
    height: 100vh;
    /* Full viewport height */
}

.lesson-header {
    background-color: var(--background-color);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 0;
    flex-shrink: 0;
}

.lesson-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.back-to-course {
    color: var(--text-light);
    font-weight: 500;
}

.back-to-course:hover {
    color: var(--primary-color);
}

.back-to-course i {
    margin-left: 8px;
}

.lesson-title-header {
    text-align: center;
    color: var(--text-light);
}

.lesson-title-header h3,
.lesson-title-header p {
    display: inline-block;
    margin: 0 5px;
}

.lesson-title-header h3 {
    color: var(--text-dark);
}

.lesson-player-container {
    display: flex;
    flex-grow: 1;
    overflow: hidden;
    /* Prevent scrolling on main container */
}

.video-main-content {
    flex-grow: 1;
    padding: 30px;
    overflow-y: auto;
    /* Allow this part to scroll */
}

.video-player-wrapper {
    width: 100%;
    background-color: #000;
    margin-bottom: 30px;
    border-radius: var(--border-radius);
}

.video-placeholder {
    width: 100%;
    aspect-ratio: 16 / 9;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
}

.video-placeholder i {
    font-size: 60px;
    margin-bottom: 20px;
}

.tab-buttons {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 25px;
}

.tab-button {
    background: none;
    border: none;
    padding: 15px 25px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    color: var(--text-light);
    position: relative;
}

.tab-button.active {
    color: var(--primary-color);
}

.tab-button.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 3px;
    background-color: var(--primary-color);
}

.tab-content {
    display: none;
    line-height: 1.8;
}

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

.tab-content ul {
    list-style: none;
    padding: 0;
}

.tab-content ul li a {
    color: var(--primary-color);
    font-weight: 500;
}

.tab-content textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 15px;
    font-family: var(--font-family);
    box-sizing: border-box;
}

.curriculum-sidebar {
    width: 350px;
    flex-shrink: 0;
    background-color: var(--background-color);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.progress-bar-container {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    text-align: center;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background-color: var(--secondary-color);
    border-radius: 4px;
    overflow: hidden;
    margin: 10px 0;
}

.progress-bar-fill {
    height: 100%;
    background-color: var(--primary-color);
    border-radius: 4px;
}

.curriculum-list {
    overflow-y: auto;
    /* Allow curriculum to scroll */
    flex-grow: 1;
}

.curriculum-sidebar .curriculum-module {
    border: none;
    border-bottom: 1px solid var(--border-color);
    margin: 0;
    border-radius: 0;
}

.curriculum-sidebar .module-header {
    background-color: transparent;
    padding: 15px 20px;
}

.curriculum-sidebar .lesson-item {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    border: none;
    padding: 12px 20px;
    transition: background-color 0.2s;
}

.curriculum-sidebar .lesson-item.active {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    font-weight: 700;
}

.curriculum-sidebar .lesson-item:hover {
    background-color: #f0f1f3;
}

.curriculum-sidebar .lesson-item.completed i {
    color: var(--primary-color);
}
/* ================================================================ */
/* =========== Mobile Styles for Lesson Player ==================== */
/* ================================================================ */

.mobile-curriculum-toggle {
    display: none;
    background: none;
    border: 1px solid var(--border-color);
    padding: 8px 12px;
    border-radius: 8px;
    font-family: var(--font-family);
    font-weight: 700;
    cursor: pointer;
}

.mobile-curriculum-toggle i {
    margin-left: 5px;
}

.close-sidebar-btn {
    display: none;
    position: absolute;
    top: 10px;
    left: 15px;
    background: none;
    border: none;
    font-size: 30px;
    cursor: pointer;
}

@media (max-width: 992px) {
    .lesson-header .lesson-title-header p,
    .lesson-header .lesson-nav-buttons {
        display: none;
    }
    .mobile-curriculum-toggle {
        display: block;
    }
    .lesson-header .container {
        justify-content: space-between;
    }
    .lesson-player-container {
        flex-direction: column;
        overflow-y: auto;
    }
    .video-main-content {
        width: 100%;
        padding: 15px;
        box-sizing: border-box;
    }
    .curriculum-sidebar {
        position: fixed;
        top: 0;
        right: -100%;
        width: 320px;
        max-width: 90%;
        height: 100vh;
        z-index: 1001;
        transition: right 0.3s ease-in-out;
        border-right: none;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    }
    .curriculum-sidebar.active {
        right: 0;
    }
    .close-sidebar-btn {
        display: block;
    }
}
/* ================================================================ */
/* =========== (جديد) Styles for Auth Pages (Register/Login) ====== */
/* ================================================================ */

.auth-section {
    padding: 80px 0;
    background-color: var(--secondary-color);
    min-height: 70vh;
    display: flex;
    align-items: center;
}

.auth-form-container {
    max-width: 500px;
    margin: auto;
    background-color: var(--background-color);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
}

.auth-form-container h2 {
    margin: 0 0 10px 0;
    font-size: 28px;
}

.auth-subtitle {
    margin: 0 0 30px 0;
    color: var(--text-light);
}

.auth-form {
    text-align: right;
}

/* --- زر تبديل نوع المستخدم --- */
.user-type-toggle {
    display: flex;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-bottom: 25px;
    overflow: hidden;
}
.user-type-toggle input[type="radio"] {
    display: none; /* إخفاء الراديو الافتراضي */
}
.user-type-toggle .user-type-label {
    flex: 1;
    padding: 15px;
    text-align: center;
    cursor: pointer;
    background-color: var(--secondary-color);
    color: var(--text-light);
    font-weight: 700;
    transition: all 0.3s ease;
}
.user-type-toggle .user-type-label.active {
    background-color: var(--primary-color);
    color: white;
}
.user-type-toggle .user-type-label i {
    margin-left: 8px;
}


/* --- حقول الإدخال --- */
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    font-weight: 700;
    margin-bottom: 8px;
}
.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"] {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: var(--font-family);
    box-sizing: border-box;
    transition: border-color 0.3s ease;
}
.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
}
.form-group.terms {
    display: flex;
    align-items: center;
    font-size: 14px;
}
.form-group.terms input[type="checkbox"] {
    width: 16px;
    height: 16px;
    margin-left: 10px;
    accent-color: var(--primary-color);
}
.form-group.terms a {
    color: var(--primary-color);
    text-decoration: none;
}

.auth-form .btn-fullwidth {
    width: 100%;
    padding: 15px;
    font-size: 16px;
}

.auth-switch {
    margin-top: 25px;
    font-size: 15px;
}
.auth-switch a {
    color: var(--primary-color);
    font-weight: 700;
    text-decoration: none;
}
/* ================================================================ */
/* =========== (تحديث نهائي) Styles for About Us Page ============== */
/* ================================================================ */

.about-hero-section-v2 {
    padding: 100px 0;
    background-image: linear-gradient(rgba(17, 24, 39, 0.85), rgba(17, 24, 39, 0.85)), url('https://images.unsplash.com/photo-1522202176988-66273c2fd55f?q=80&w=2071&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    text-align: center;
    color: white;
}
.about-hero-section-v2 .hero-text {
    max-width: 800px;
    margin: 0 auto;
}
.about-hero-section-v2 h1 {
    font-size: 48px;
    font-weight: 800;
    margin-top: 0;
    margin-bottom: 20px;
    line-height: 1.4;
}
.about-hero-section-v2 p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

.alternating-layout-section {
    padding: 80px 0;
}
.alternating-row {
    display: flex;
    align-items: center;
    gap: 60px;
    margin-bottom: 80px;
}
.alternating-row:last-child {
    margin-bottom: 0;
}
.alternating-row.reverse {
    flex-direction: row-reverse;
}
.alternating-image {
    flex-basis: 50%;
    min-width: 50%;
}
.alternating-image img {
    width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}
.alternating-text {
    flex-basis: 50%;
}
.alternating-text h3 {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: 15px;
}
.alternating-text p {
    font-size: 17px;
    line-height: 1.9;
    color: var(--text-light);
}

.goals-section {
    padding: 80px 0;
    background-color: var(--secondary-color);
}
.goals-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}
.goal-card {
    background-color: var(--background-color);
    padding: 35px 30px;
    border-radius: var(--border-radius);
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}
.goal-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow);
}
.goal-icon {
    font-size: 40px;
    color: var(--primary-color);
    margin-bottom: 20px;
}
.goal-card h4 {
    font-size: 22px;
    margin: 0 0 10px 0;
}
.goal-card p {
    color: var(--text-light);
    line-height: 1.7;
    margin: 0;
}

/* --- Mobile Responsive --- */
@media (max-width: 992px) {
    .alternating-row,
    .alternating-row.reverse {
        flex-direction: column;
        gap: 30px;
        text-align: center;
    }
}

@media (max-width: 576px) {
    .about-hero-section-v2 h1 {
        font-size: 36px;
    }
}
/* =========================================
   إضافة: تنسيقات الإشعارات (Notifications)
   ========================================= */
#notification-container {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 90%;
    max-width: 400px;
    pointer-events: none;
}

.custom-toast {
    background: #fff;
    color: #333;
    padding: 16px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: 'Tajawal', sans-serif;
    font-weight: 600;
    font-size: 14px;
    animation: slideInDown 0.4s ease forwards;
    border-right: 6px solid #ccc;
    pointer-events: auto;
}

/* نجاح */
.custom-toast.success {
    border-right-color: #2ecc71;
}
.custom-toast.success i {
    color: #2ecc71;
    font-size: 18px;
}

/* خطأ */
.custom-toast.error {
    border-right-color: #e74c3c;
}
.custom-toast.error i {
    color: #e74c3c;
    font-size: 18px;
}

/* حركات الأنيميشن */
@keyframes slideInDown {
    from { transform: translateY(-100%); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@keyframes fadeOutUp {
    from { transform: translateY(0); opacity: 1; }
    to { transform: translateY(-20px); opacity: 0; }
}