/* =========================================
   EXOS v1 - Educational Experience OS
   Premium Landing Page - Complete Rewrite
   ========================================= */

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #1a1a25;
    --bg-elevated: #252535;
    --text-primary: #f0f0f5;
    --text-secondary: #a0a0b5;
    --text-muted: #6a6a80;
    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-tertiary: #a78bfa;
    --accent-glow: rgba(99, 102, 241, 0.4);
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a78bfa 100%);
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-medium: rgba(255, 255, 255, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px var(--accent-glow);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 70px;
}

body {
    font-family: 'Cairo', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    direction: rtl;
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

/* Reading Progress Bar */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--gradient-primary);
    z-index: 10000;
    transition: width 100ms ease-out;
    box-shadow: 0 0 10px var(--accent-glow);
}

/* =========================================
   HEADER
   ========================================= */
.landing-header {
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    padding: 12px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-subtle);
}

.landing-header.scrolled {
    padding: 10px 24px;
    box-shadow: var(--shadow-lg);
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-img {
    width: 38px;
    height: 38px;
    object-fit: contain;
    border-radius: 8px;
}

.logo-text {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--text-primary);
    font-family: 'Cairo', sans-serif;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav-link.active {
    color: var(--accent-primary);
    background: rgba(99, 102, 241, 0.1);
}

.nav-link i {
    font-size: 0.8rem;
}

.auth-buttons {
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: var(--radius-md);
    font-family: 'Cairo', sans-serif;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-base);
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-medium);
}

.btn-ghost:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

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

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--accent-primary);
}

.btn-lg {
    padding: 14px 28px;
    font-size: 0.95rem;
    border-radius: var(--radius-lg);
}

.btn-sm {
    padding: 8px 14px;
    font-size: 0.8rem;
}

.btn-block {
    width: 100%;
}

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

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.2);
}

.btn-ghost-white {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

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

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: var(--radius-full);
}

.mobile-nav {
    position: fixed;
    top: 0;
    right: -280px;
    width: 280px;
    height: 100vh;
    background: var(--bg-secondary);
    z-index: 2000;
    transition: right var(--transition-slow);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
}

.mobile-nav.open {
    right: 0;
}

.mobile-nav-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px;
    border-bottom: 1px solid var(--border-subtle);
}

.mobile-nav-logo {
    width: 36px;
    height: 36px;
    border-radius: 8px;
}

.mobile-nav-close {
    margin-right: auto;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
}

.mobile-nav-links {
    flex: 1;
    padding: 12px;
    overflow-y: auto;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    color: var(--accent-primary);
    background: rgba(99, 102, 241, 0.1);
}

.mobile-nav-auth {
    padding: 16px;
    display: flex;
    gap: 10px;
}

.mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 1999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.mobile-nav-overlay.open {
    opacity: 1;
    visibility: visible;
}

/* Soft Spotlight */

/* Main Content */
.main-content {
    padding-top: 65px;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 32px;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: rgba(99, 102, 241, 0.1);
    color: var(--accent-primary);
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    margin-bottom: 12px;
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.section-title {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 12px;
    line-height: 1.2;
}

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

.section-subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* =========================================
   HERO SECTION - Wide Horizontal Layout
   ========================================= */
.hero-section {
    padding: 40px 24px;
    position: relative;
    overflow: hidden;
    min-height: 500px;
    display: flex;
    align-items: center;
}

.hero-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 55% 45%;
    gap: 24px;
    align-items: center;
}

.hero-text {
    text-align: right;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    background: rgba(99, 102, 241, 0.15);
    color: var(--accent-tertiary);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: 8px;
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.hero-title {
    font-size: 2rem;
    font-weight: 900;
    color: var(--text-primary);
    line-height: 1.15;
    margin-bottom: 8px;
}

.hero-subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
    line-height: 1.5;
}

.hero-actions {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 24px;
}

.hero-stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
}

.stat-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 3px;
}

/* Hero Swiper */
.hero-visual {
    position: relative;
}

.hero-swiper-container {
    width: 100%;
    padding: 10px 0;
}

.swiper {
    width: 100%;
    padding-bottom: 45px;
}

.swiper-slide {
    background-position: center;
    background-size: cover;
    width: 240px;
    height: 380px;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-base);
    background: var(--bg-card);
}

.swiper-slide img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.swiper-slide-active {
    transform: scale(1.05);
}

.swiper-pagination-bullet {
    width: 8px;
    height: 8px;
    background: var(--text-muted);
    opacity: 0.5;
    transition: all var(--transition-base);
}

.swiper-pagination-bullet-active {
    background: var(--accent-primary);
    opacity: 1;
    width: 24px;
    border-radius: var(--radius-full);
}

/* =========================================
   FEATURES SECTION
   ========================================= */
.features-section {
    padding: 60px 24px;
    background: var(--bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    max-width: 1000px;
    margin: 0 auto;
}

.feature-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: 28px;
    border: 1px solid var(--border-subtle);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-slow);
}

.feature-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
}

.feature-card .feature-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top left, rgba(99, 102, 241, 0.1) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-slow);
}

.feature-card:hover .feature-glow {
    opacity: 1;
}

.feature-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-lg);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: white;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* =========================================
   CONTINUE LEARNING SECTION - Compact Card
   ========================================= */
.continue-learning-section {
    padding: 60px 24px;
}

.learning-cards-container {
    max-width: 800px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

.learning-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: 20px;
    border: 1px solid var(--border-subtle);
}

.primary-learning-card {
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(99, 102, 241, 0.08) 100%);
    border-color: rgba(99, 102, 241, 0.2);
}

.learning-card-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.learning-progress-ring {
    position: relative;
    width: 70px;
    height: 70px;
    flex-shrink: 0;
}

.learning-progress-ring svg {
    transform: rotate(-90deg);
    width: 70px;
    height: 70px;
}

.progress-bg {
    fill: none;
    stroke: var(--border-medium);
    stroke-width: 5;
}

.progress-fill {
    fill: none;
    stroke: url(#progressGradient);
    stroke-width: 5;
    stroke-linecap: round;
    stroke-dasharray: 188;
    stroke-dashoffset: 66;
    transition: stroke-dashoffset 1s ease-out;
}

.progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--accent-primary);
}

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

.learning-subject {
    font-size: 0.7rem;
    color: var(--accent-primary);
    font-weight: 600;
    margin-bottom: 2px;
    display: block;
}

.learning-info h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2px;
    line-height: 1.3;
}

.learning-info p {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.learning-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 14px;
    border-top: 1px solid var(--border-subtle);
}

.learning-meta {
    display: flex;
    gap: 14px;
}

.learning-meta span {
    font-size: 0.7rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 4px;
}

.learning-meta i {
    color: var(--accent-primary);
    font-size: 0.7rem;
}

/* Quick Actions Grid */
.quick-actions-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.quick-action-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 18px 12px;
    border: 1px solid var(--border-subtle);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
}

.quick-action-ring {
    position: relative;
    width: 56px;
    height: 56px;
    margin: 0 auto 10px;
}

.quick-action-ring svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.quick-action-ring .ring-bg {
    fill: none;
    stroke: rgba(99, 102, 241, 0.1);
    stroke-width: 6;
}

.quick-action-ring .ring-fill {
    fill: none;
    stroke: var(--accent-primary);
    stroke-width: 6;
    stroke-linecap: round;
    stroke-dasharray: 226.2;
    stroke-dashoffset: 226.2;
    transition: stroke-dashoffset 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.quick-action-ring .quick-action-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: auto;
    height: auto;
    background: none;
    margin: 0;
    font-size: 1.1rem;
}

.quick-action-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-md);
}

.quick-action-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: rgba(99, 102, 241, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 10px;
    font-size: 1rem;
    color: var(--accent-primary);
}

.quick-action-ring .quick-action-icon {
    background: none;
    margin: 0;
    font-size: 1.1rem;
}

.quick-action-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.quick-action-count {
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* =========================================
   VIDEO SECTION
   ========================================= */
.video-section {
    padding: 60px 24px;
    background: var(--bg-secondary);
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
}

.video-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--border-subtle);
    transition: all var(--transition-slow);
}

.video-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.video-thumbnail {
    position: relative;
    aspect-ratio: 16/9;
}

.video-info {
    padding: 18px;
}

.video-badge {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(99, 102, 241, 0.15);
    color: var(--accent-primary);
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: 8px;
}

.video-info h3 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.video-meta {
    display: flex;
    gap: 14px;
}

.video-meta span {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 4px;
}

/* =========================================
   STATS SECTION
   ========================================= */
.stats-section {
    padding: 60px 24px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    max-width: 1000px;
    margin: 0 auto;
}

.stat-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: 24px;
    text-align: center;
    border: 1px solid var(--border-subtle);
    transition: all var(--transition-slow);
}

.stat-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
}

.stat-icon {
    width: 55px;
    height: 55px;
    border-radius: var(--radius-lg);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 14px;
    font-size: 1.3rem;
    color: white;
}

.stat-card .stat-number {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.stat-card .stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.stat-bar {
    height: 4px;
    background: var(--border-subtle);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.stat-bar-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    width: 0%;
    transition: width 1.5s ease-out;
}

/* =========================================
   PRICING SECTION
   ========================================= */
.pricing-section {
    padding: 60px 24px;
    background: var(--bg-secondary);
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    max-width: 1100px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: 24px 18px;
    border: 1px solid var(--border-subtle);
    position: relative;
    transition: all var(--transition-slow);
    display: flex;
    flex-direction: column;
}

.pricing-card:hover {
    transform: translateY(-10px);
    border-color: var(--border-medium);
    box-shadow: var(--shadow-lg);
}

.pricing-card.featured {
    border: 2px solid var(--accent-primary);
    background: linear-gradient(180deg, rgba(99, 102, 241, 0.1) 0%, var(--bg-card) 50%);
    transform: scale(1.02);
}

.pricing-card.featured:hover {
    transform: scale(1.02) translateY(-10px);
}

.featured-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 5px 16px;
    background: var(--gradient-primary);
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    border-radius: var(--radius-full);
}

.pricing-card-header {
    text-align: center;
    margin-bottom: 18px;
}

.pricing-icon {
    width: 55px;
    height: 55px;
    border-radius: var(--radius-lg);
    background: rgba(99, 102, 241, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
    font-size: 1.3rem;
    color: var(--accent-primary);
}

.pricing-card-header h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.pricing-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.pricing-price {
    text-align: center;
    margin-bottom: 18px;
    padding: 14px 0;
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

.price {
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--text-primary);
}

.currency {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-right: 4px;
}

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

.pricing-features {
    list-style: none;
    margin-bottom: 20px;
    flex: 1;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 0.85rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-subtle);
}

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

.pricing-features li i {
    width: 16px;
    text-align: center;
    font-size: 0.75rem;
}

.pricing-features li.included i {
    color: var(--success);
}

.pricing-features li.excluded {
    opacity: 0.5;
}

.pricing-features li.excluded i {
    color: var(--error);
}

.pricing-features li.limited i {
    color: var(--warning);
}

.pricing-features li.highlight {
    color: var(--text-primary);
    font-weight: 600;
}

.pricing-features li.highlight i {
    color: var(--accent-primary);
}

/* =========================================
   CTA SECTION
   ========================================= */
.cta-section {
    padding: 60px 24px;
    background: var(--gradient-primary);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    animation: rotate 20s linear infinite;
}

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

.cta-content {
    text-align: center;
    position: relative;
    z-index: 1;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 1.8rem;
    font-weight: 900;
    color: white;
    margin-bottom: 12px;
}

.cta-content p {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 24px;
}

.cta-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

/* =========================================
   FOOTER
   ========================================= */
.landing-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-subtle);
    padding: 32px 24px 20px;
}

.footer-content {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 24px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.footer-logo img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
}

.footer-logo span {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.footer-brand p {
    color: var(--text-muted);
    max-width: 300px;
    line-height: 1.6;
    font-size: 0.8rem;
}

.footer-center {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 14px;
}

.footer-links-row {
    display: flex;
    gap: 20px;
}

.footer-links-row a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.2s;
}

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

.footer-social {
    display: flex;
    gap: 10px;
}

.footer-social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    transition: all 0.25s ease;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-social-link:hover {
    background: var(--accent-primary);
    color: #fff;
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 16px;
    border-top: 1px solid var(--border-subtle);
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.75rem;
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-medium);
    font-size: 1rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    z-index: 1000;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

/* =========================================
   SCROLL REVEAL - Smooth No Shake
   ========================================= */
.reveal-section {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal-section.revealed {
    opacity: 1;
    transform: translateY(0);
}

.reveal-item {
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.reveal-item.revealed {
    opacity: 1;
    transform: translateY(0);
}

.reveal-item:nth-child(1) { transition-delay: 0ms; }
.reveal-item:nth-child(2) { transition-delay: 60ms; }
.reveal-item:nth-child(3) { transition-delay: 120ms; }
.reveal-item:nth-child(4) { transition-delay: 180ms; }
.reveal-item:nth-child(5) { transition-delay: 240ms; }
.reveal-item:nth-child(6) { transition-delay: 300ms; }

.interactive-card {
    transform-style: preserve-3d;
    perspective: 1000px;
}

.magnetic-btn {
    position: relative;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* =========================================
   RESPONSIVE - TABLET (max-width: 1024px)
   ========================================= */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 50% 50%;
        gap: 20px;
    }

    .hero-text {
        text-align: right;
    }

    .hero-title {
        font-size: 1.8rem;
    }

    .hero-subtitle {
        font-size: 0.8rem;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pricing-cards {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 24px;
    }

    .footer-center {
        align-items: center;
    }

    .footer-brand p {
        max-width: 100%;
    }
}

/* =========================================
   RESPONSIVE - MOBILE (max-width: 768px)
   ========================================= */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .auth-buttons .btn-primary {
        display: none;
    }

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

    .auth-buttons .btn-ghost {
        background: var(--color-primary);
        color: #fff;
        border: none;
        padding: 5px 10px;
        font-size: 0.7rem;
        border-radius: 8px;
        gap: 5px;
    }

    .auth-buttons .btn-ghost:hover {
        background: var(--color-primary-hover);
    }

    .auth-buttons .btn-ghost i {
        font-size: 0.65rem;
    }

    .auth-buttons {
        display: flex;
    }

    .landing-header {
        padding: 10px 16px;
    }

    .logo-link {
        flex: 1;
    }

    .section-title {
        font-size: 1.4rem;
    }

    .section-subtitle {
        font-size: 0.8rem;
    }

    /* Hero Mobile */
    .hero-section {
        padding: 20px 16px;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .hero-text {
        text-align: center;
        order: 1;
        padding: 0 8px;
    }

    .hero-visual {
        order: 2;
        max-width: 100%;
        overflow: hidden;
    }

    .hero-title {
        font-size: 1.5rem;
        line-height: 1.3;
    }

    .hero-subtitle {
        font-size: 0.85rem;
        margin-bottom: 14px;
        line-height: 1.5;
    }

    .hero-actions {
        flex-direction: column;
        gap: 10px;
        margin-bottom: 16px;
    }

    .hero-actions .btn {
        width: 100%;
        padding: 14px 20px;
    }

    .hero-stats {
        justify-content: center;
        gap: 20px;
        flex-wrap: wrap;
    }

    .hero-stat {
        text-align: center;
        min-width: 70px;
    }

    .stat-number {
        font-size: 1.3rem;
    }

    .stat-label {
        font-size: 0.7rem;
    }

    .swiper-slide {
        width: 180px;
        height: 280px;
    }

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

    .learning-card-header {
        flex-direction: row;
    }

    .learning-card-footer {
        flex-direction: row;
        justify-content: space-between;
    }

    .quick-actions-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .stat-card {
        padding: 18px;
    }

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

    .stat-card .stat-number {
        font-size: 1.5rem;
    }

    .pricing-cards {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .pricing-card.featured {
        transform: scale(1);
    }

    .pricing-card.featured:hover {
        transform: translateY(-10px);
    }

    .cta-content h2 {
        font-size: 1.3rem;
    }

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

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

    .floating-actions {
        bottom: 16px;
        left: 16px;
    }

    .back-to-top {
        bottom: 16px;
        right: 16px;
    }
}

/* =========================================
   RESPONSIVE - SMALL MOBILE (max-width: 480px)
   ========================================= */
@media (max-width: 480px) {
    .section-header {
        margin-bottom: 24px;
    }

    .section-title {
        font-size: 1.2rem;
    }

    .hero-section {
        padding: 16px 12px;
    }

    .hero-text {
        padding: 0 4px;
    }

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

    .hero-subtitle {
        font-size: 0.8rem;
    }

    .hero-actions .btn {
        padding: 12px 16px;
        font-size: 0.85rem;
    }

    .hero-stats {
        gap: 14px;
    }

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

    .stat-number {
        font-size: 1.1rem;
    }

    .swiper-slide {
        width: 150px;
        height: 230px;
    }

    .learning-card {
        padding: 14px;
    }

    .learning-progress-ring {
        width: 60px;
        height: 60px;
    }

    .learning-progress-ring svg {
        width: 60px;
        height: 60px;
    }

    .learning-info h3 {
        font-size: 0.9rem;
    }

    .quick-actions-grid {
        gap: 8px;
    }

    .quick-action-card {
        padding: 14px 8px;
    }

    .quick-action-icon {
        width: 36px;
        height: 36px;
        font-size: 0.9rem;
    }
}