/*
 * Edujar Premium Theme
 * Unified design system with CSS variables
 */

/* ============================================
   CSS VARIABLES - Dynamic Theme Colors
   ============================================ */
:root {
    /* Primary Colors - Can be overridden by PHP */
    --primary: var(--theme-primary, #4f46e5);
    --secondary: var(--theme-secondary, #7c3aed);
    --accent: var(--theme-accent, #ec4899);

    /* Background Colors */
    --bg-body: var(--theme-bg, #1e1b4b);
    --bg-dark: var(--theme-bg-dark, #0f0a1e);
    --bg-card: var(--theme-card-bg, #2d2a5e);
    --bg-card-hover: #3d3a7e;

    /* Text Colors */
    --text-primary: var(--theme-text, #f8fafc);
    --text-secondary: var(--theme-text-muted, #94a3b8);
    --text-muted: #64748b;

    /* Border & Glass */
    --border-color: var(--theme-border, rgba(255, 255, 255, 0.1));
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-blur: blur(20px);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent) 0%, #f97316 100%);
    --gradient-card: linear-gradient(180deg, var(--bg-card) 0%, rgba(45, 42, 94, 0.5) 100%);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 30px rgba(79, 70, 229, 0.3);

    /* Typography */
    --font-primary: 'Cairo', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Cairo', sans-serif;

    /* Spacing */
    --section-padding: 100px 0;
    --card-padding: 24px;
    --card-radius: 20px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ============================================
   BASE STYLES
   ============================================ */
body.edujar-theme {
    background: var(--bg-body);
    color: var(--text-primary);
    font-family: var(--font-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Dark gradient overlay */
body.edujar-theme::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at top right, rgba(79, 70, 229, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at bottom left, rgba(236, 72, 153, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

/* ============================================
   NAVIGATION - Premium Glassmorphism
   ============================================ */
.navbar-edujar {
    background: rgba(15, 10, 30, 0.8);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: var(--transition-normal);
}

.navbar-edujar.scrolled {
    background: rgba(15, 10, 30, 0.95);
    box-shadow: var(--shadow-md);
}

.navbar-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary) !important;
    text-decoration: none;
}

.brand-logo {
    width: 44px;
    height: 44px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: white;
    box-shadow: 0 0 20px rgba(79, 70, 229, 0.4);
}

.navbar-nav {
    display: flex;
    gap: 8px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-link-edujar {
    color: var(--text-secondary) !important;
    font-weight: 500;
    padding: 10px 20px;
    border-radius: 50px;
    transition: var(--transition-normal);
    text-decoration: none;
    display: block;
}

.nav-link-edujar:hover,
.nav-link-edujar.active {
    color: var(--text-primary) !important;
    background: var(--glass-bg);
}

.navbar-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

.btn-login {
    color: var(--text-primary);
    padding: 10px 24px;
    border: 1px solid var(--border-color);
    border-radius: 50px;
    background: transparent;
    transition: var(--transition-normal);
    text-decoration: none;
    font-weight: 500;
}

.btn-login:hover {
    background: var(--glass-bg);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-get-started {
    background: var(--gradient-primary);
    color: white !important;
    padding: 10px 24px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    box-shadow: var(--shadow-glow);
    transition: var(--transition-normal);
    border: none;
}

.btn-get-started:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 40px rgba(79, 70, 229, 0.5);
}

/* ============================================
   HERO SECTION - Edujar Style
   ============================================ */
.hero-edujar {
    min-height: 100vh;
    padding: 140px 0 80px;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.hero-title .highlight {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
    max-width: 500px;
}

/* Search Box */
.hero-search {
    display: flex;
    background: var(--bg-card);
    border-radius: 60px;
    padding: 8px;
    max-width: 500px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.hero-search input {
    flex: 1;
    background: transparent;
    border: none;
    padding: 16px 24px;
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
}

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

.hero-search .btn-search {
    background: var(--gradient-primary);
    color: white;
    padding: 16px 32px;
    border-radius: 50px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
}

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

/* Hero Visual */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image {
    max-width: 100%;
    position: relative;
    z-index: 2;
}

.hero-decoration {
    position: absolute;
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.hero-decoration.circle-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(79, 70, 229, 0.2) 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.hero-decoration.star-1 {
    width: 24px;
    height: 24px;
    background: var(--accent);
    top: 20%;
    left: 10%;
    animation-delay: 0.5s;
}

.hero-decoration.star-2 {
    width: 16px;
    height: 16px;
    background: var(--primary);
    bottom: 30%;
    right: 10%;
    animation-delay: 1s;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-20px);
    }
}

/* ============================================
   PARTNERS STRIP
   ============================================ */
.partners-strip {
    padding: 40px 0;
    background: rgba(0, 0, 0, 0.2);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    overflow: hidden;
}

.partners-label {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 24px;
}

.partners-slider {
    display: flex;
    gap: 80px;
    animation: scroll-partners 30s linear infinite;
}

.partner-logo {
    font-size: 2rem;
    color: var(--text-muted);
    opacity: 0.6;
    transition: var(--transition-normal);
    white-space: nowrap;
}

.partner-logo:hover {
    opacity: 1;
    color: var(--text-primary);
}

@keyframes scroll-partners {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-50%);
    }
}

/* ============================================
   SECTION HEADERS
   ============================================ */
.section-edujar {
    padding: var(--section-padding);
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(79, 70, 229, 0.15);
    border: 1px solid rgba(79, 70, 229, 0.3);
    border-radius: 50px;
    color: #818cf8;
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 16px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.section-title .gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Category Tabs */
.category-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.category-tab {
    padding: 10px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-normal);
    text-decoration: none;
}

.category-tab:hover,
.category-tab.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
}

/* ============================================
   COURSE CARDS - Edujar Style
   ============================================ */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

.course-card-edujar {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    overflow: hidden;
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.course-card-edujar:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(79, 70, 229, 0.3);
}

.course-thumb {
    position: relative;
    padding-top: 60%;
    overflow: hidden;
}

.course-thumb img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.course-card-edujar:hover .course-thumb img {
    transform: scale(1.1);
}

.course-badges {
    position: absolute;
    top: 16px;
    left: 16px;
    right: 16px;
    display: flex;
    justify-content: space-between;
}

.badge-lesson {
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    gap: 6px;
}

.badge-category {
    background: var(--accent);
    color: white;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.course-details {
    padding: var(--card-padding);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.course-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.course-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

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

.instructor-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.instructor-name {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
}

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

.students-count {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.course-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}

.course-rating {
    display: flex;
    gap: 4px;
}

.course-rating i {
    color: #fbbf24;
    font-size: 0.875rem;
}

.enroll-link {
    color: var(--accent);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-fast);
}

.enroll-link:hover {
    color: var(--primary);
}

/* ============================================
   FEATURE CARDS
   ============================================ */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    padding: 32px;
    text-align: center;
    transition: var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(79, 70, 229, 0.5);
    box-shadow: var(--shadow-glow);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: white;
    margin: 0 auto 20px;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ============================================
   TEACHER CARDS
   ============================================ */
.teachers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.teacher-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    overflow: hidden;
    text-align: center;
    transition: var(--transition-normal);
}

.teacher-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.teacher-image {
    position: relative;
    padding-top: 100%;
    overflow: hidden;
}

.teacher-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.teacher-card:hover .teacher-image img {
    transform: scale(1.1);
}

.teacher-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    opacity: 0;
    transition: var(--transition-normal);
}

.teacher-card:hover .teacher-overlay {
    opacity: 1;
}

.teacher-social {
    display: flex;
    justify-content: center;
    gap: 12px;
}

.teacher-social a {
    width: 36px;
    height: 36px;
    background: var(--glass-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: var(--transition-fast);
}

.teacher-social a:hover {
    background: var(--primary);
}

.teacher-info {
    padding: 24px;
}

.teacher-info h4 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.teacher-specialty {
    color: var(--accent);
    font-size: 0.9rem;
    margin-bottom: 16px;
}

.teacher-stats {
    display: flex;
    justify-content: center;
    gap: 24px;
}

.teacher-stat {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ============================================
   PRICING CARDS
   ============================================ */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    padding: 40px 32px;
    text-align: center;
    position: relative;
    transition: var(--transition-normal);
}

.pricing-card.featured {
    border-color: var(--primary);
    transform: scale(1.05);
    box-shadow: var(--shadow-glow);
}

.pricing-card:hover {
    transform: translateY(-8px);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-8px);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: white;
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.pricing-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.pricing-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.pricing-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 24px;
}

.pricing-amount {
    margin-bottom: 24px;
}

.pricing-currency {
    font-size: 1.25rem;
    vertical-align: top;
    color: var(--text-secondary);
}

.pricing-value {
    font-size: 3rem;
    font-weight: 800;
    color: var(--text-primary);
}

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

.pricing-features {
    list-style: none;
    padding: 0;
    margin: 0 0 32px;
    text-align: right;
}

.pricing-features li {
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 12px;
}

.pricing-features li i {
    color: #22c55e;
}

.pricing-features li:last-child {
    border-bottom: none;
}

/* ============================================
   TESTIMONIAL CARDS
   ============================================ */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.testimonial-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    padding: 32px;
    position: relative;
    transition: var(--transition-normal);
}

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

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

.testimonial-rating {
    display: flex;
    gap: 4px;
    margin-bottom: 16px;
}

.testimonial-rating i {
    color: #fbbf24;
}

.testimonial-quote {
    position: absolute;
    top: 24px;
    left: 24px;
    font-size: 3rem;
    color: var(--primary);
    opacity: 0.2;
}

.testimonial-text {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.testimonial-author img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.testimonial-author h5 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary);
}

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

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
    padding: 80px 0;
}

.cta-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px;
    background: var(--gradient-primary);
    border-radius: 30px;
    position: relative;
    overflow: hidden;
}

.cta-wrapper::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.cta-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.cta-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 20px;
    border-radius: 50px;
    color: white;
    font-weight: 500;
    margin-bottom: 20px;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: white;
    margin-bottom: 16px;
}

.cta-subtitle {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-cta-primary {
    background: white;
    color: var(--primary);
    padding: 16px 32px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-normal);
}

.btn-cta-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.btn-cta-secondary {
    background: transparent;
    color: white;
    padding: 16px 32px;
    border-radius: 50px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-normal);
}

.btn-cta-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
}

/* ============================================
   FOOTER
   ============================================ */
.footer-edujar {
    background: var(--bg-dark);
    padding: 80px 0 30px;
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 60px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

.footer-brand p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin: 20px 0;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: var(--bg-card);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.footer-social a:hover {
    background: var(--primary);
    color: white;
}

.footer-links h4 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-primary);
}

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

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

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
}

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

.footer-bottom {
    max-width: 1400px;
    margin: 60px auto 0;
    padding: 30px 24px 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-muted);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-visual {
        margin-top: 40px;
    }

    .hero-subtitle {
        margin: 0 auto 32px;
    }

    .hero-search {
        margin: 0 auto;
    }

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

@media (max-width: 768px) {
    .navbar-nav {
        display: none;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .courses-grid,
    .features-grid,
    .teachers-grid,
    .pricing-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-social {
        justify-content: center;
    }

    .cta-wrapper {
        padding: 40px 24px;
    }

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

/* ============================================
   UTILITY CLASSES
   ============================================ */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

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

.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.bg-dark {
    background: var(--bg-dark);
}

.bg-card {
    background: var(--bg-card);
}

.mt-1 {
    margin-top: 8px;
}

.mt-2 {
    margin-top: 16px;
}

.mt-3 {
    margin-top: 24px;
}

.mt-4 {
    margin-top: 32px;
}

.mb-1 {
    margin-bottom: 8px;
}

.mb-2 {
    margin-bottom: 16px;
}

.mb-3 {
    margin-bottom: 24px;
}

.mb-4 {
    margin-bottom: 32px;
}