/* ============================================
   NetDidactic Landing Page Styles
   ============================================ */

/* ============================================
   CSS Variables & Base Styles
   ============================================ */
:root {
    /* Colors */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #6b6b7b;
    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-tertiary: #a855f7;

    /* Glass effects */
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-bg-hover: rgba(255, 255, 255, 0.06);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-border-hover: rgba(255, 255, 255, 0.15);
    --glass-shadow: rgba(0, 0, 0, 0.3);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Spacing */
    --section-padding: 120px 0;
    --container-width: 1200px;

    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Reset & Base */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

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

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

/* ============================================
   Video Background
   ============================================ */
.video-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.video-background video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        180deg,
        rgba(10, 10, 15, 0.5) 0%,
        rgba(10, 10, 15, 0.8) 40%,
        rgba(10, 10, 15, 0.95) 100%
    );
    pointer-events: none;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 50%, var(--accent-tertiary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
   Buttons
   ============================================ */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: all var(--transition-medium);
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.5);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 16px;
    cursor: pointer;
    transition: all var(--transition-medium);
}

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

.btn-glass {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-weight: 500;
    font-size: 16px;
    cursor: pointer;
    transition: all var(--transition-medium);
}

.btn-glass:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
}

.btn-large {
    padding: 18px 36px;
    font-size: 18px;
}

.btn-sm {
    padding: 10px 20px;
    font-size: 14px;
}

.btn-full {
    width: 100%;
}

/* ============================================
   Navigation
   ============================================ */
.glass-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 24px;
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 12px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-medium);
}

.glass-nav.scrolled .nav-container {
    background: rgba(10, 10, 15, 0.8);
    border-color: rgba(255, 255, 255, 0.1);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 18px;
    color: var(--text-primary);
}

.logo-icon {
    width: 32px;
    height: 32px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 15px;
    transition: color var(--transition-fast);
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    transition: width var(--transition-medium);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-cta {
    display: flex;
    gap: 12px;
}

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

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-medium);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 24px;
    z-index: 999;
    border-bottom: 1px solid var(--glass-border);
    transform: translateY(-100%);
    opacity: 0;
    transition: all var(--transition-medium);
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
}

.mobile-nav-links {
    list-style: none;
    margin-bottom: 24px;
}

.mobile-nav-links li {
    padding: 12px 0;
    border-bottom: 1px solid var(--glass-border);
}

.mobile-nav-links a {
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 500;
}

.mobile-cta {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 140px 24px 80px;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin-bottom: 60px;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 100px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.hero h1 {
    font-size: clamp(36px, 6vw, 72px);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: clamp(16px, 2vw, 20px);
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

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

/* Hero Mockup */
.hero-mockup {
    width: 100%;
    max-width: 900px;
    perspective: 1000px;
}

.mockup-card {
    background: rgba(18, 18, 26, 0.8);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow:
        0 25px 50px -12px rgba(0, 0, 0, 0.5),
        0 0 0 1px var(--glass-border);
}

.mockup-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--glass-border);
}

.mockup-dots {
    display: flex;
    gap: 8px;
}

.mockup-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--glass-border);
}

.mockup-dots span:nth-child(1) {
    background: #ff5f57;
}

.mockup-dots span:nth-child(2) {
    background: #ffbd2e;
}

.mockup-dots span:nth-child(3) {
    background: #28ca41;
}

.mockup-title {
    color: var(--text-muted);
    font-size: 13px;
}

.mockup-content {
    display: flex;
    min-height: 300px;
}

.mockup-sidebar {
    width: 200px;
    padding: 20px;
    border-right: 1px solid var(--glass-border);
    background: rgba(0, 0, 0, 0.2);
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.sidebar-item:hover,
.sidebar-item.active {
    background: var(--glass-bg);
    color: var(--text-primary);
}

.sidebar-item.active {
    background: rgba(99, 102, 241, 0.15);
    color: var(--accent-primary);
}

.mockup-main {
    flex: 1;
    padding: 20px;
}

.storage-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 16px;
    margin-bottom: 20px;
}

.storage-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
}

.storage-label {
    color: var(--text-secondary);
    font-size: 13px;
}

.storage-value {
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 600;
}

.storage-bar {
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
}

.storage-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 3px;
}

.file-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.file-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.file-item:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
}

.file-item span {
    font-size: 12px;
    color: var(--text-secondary);
}

.file-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
}

.file-icon.folder {
    background: linear-gradient(135deg, #f59e0b, #f97316);
}

.file-icon.image {
    background: linear-gradient(135deg, #10b981, #059669);
}

.file-icon.video {
    background: linear-gradient(135deg, #ef4444, #dc2626);
}

.file-icon.code {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
}

/* ============================================
   Trust Bar
   ============================================ */
.trust-bar {
    padding: 60px 0;
    text-align: center;
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
    background: rgba(0, 0, 0, 0.3);
}

.trust-bar p {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 32px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.logo-scroll {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 48px;
    flex-wrap: wrap;
}

.trust-logo {
    opacity: 0.5;
    transition: opacity var(--transition-medium);
}

.trust-logo:hover {
    opacity: 0.8;
}

.trust-logo svg {
    height: 24px;
    width: auto;
    fill: var(--text-secondary);
}

/* ============================================
   Section Styling
   ============================================ */
section {
    padding: var(--section-padding);
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 100px;
    font-size: 14px;
    font-weight: 500;
    color: var(--accent-primary);
    margin-bottom: 20px;
}

.section-header h2 {
    font-size: clamp(28px, 4vw, 48px);
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-header p {
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    font-size: 17px;
    line-height: 1.7;
}

/* ============================================
   Features Section
   ============================================ */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.feature-card {
    padding: 36px;
    text-align: left;
    transition: all var(--transition-medium);
}

.feature-card:hover {
    transform: translateY(-4px);
}

.feature-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
    color: white;
}

.feature-card h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.7;
}

/* ============================================
   How It Works Section
   ============================================ */
.two-column-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.column-text .section-badge {
    margin-bottom: 16px;
}

.column-text h2 {
    font-size: clamp(28px, 3.5vw, 42px);
    margin-bottom: 20px;
    text-align: left;
}

.column-text > p {
    color: var(--text-secondary);
    font-size: 17px;
    line-height: 1.7;
    margin-bottom: 32px;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 0;
    color: var(--text-secondary);
    font-size: 16px;
}

.feature-list li svg {
    flex-shrink: 0;
}

/* Icon Grid */
.icon-grid-3x3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.icon-item {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition-medium);
}

.icon-item:hover {
    color: var(--text-primary);
    transform: scale(1.05);
}

.icon-item.highlight {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(139, 92, 246, 0.2));
    border-color: rgba(99, 102, 241, 0.3);
    color: var(--accent-primary);
}

/* ============================================
   Pricing Section
   ============================================ */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    padding: 40px 32px;
    text-align: center;
    position: relative;
    transition: all var(--transition-medium);
}

.pricing-card:hover {
    transform: translateY(-4px);
}

.pricing-card.featured {
    border-color: var(--accent-primary);
    background: rgba(99, 102, 241, 0.05);
}

.popular-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 20px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
}

.pricing-card h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
}

.price {
    font-size: 56px;
    font-weight: 800;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.price span {
    font-size: 18px;
    font-weight: 400;
    color: var(--text-secondary);
}

.plan-description {
    color: var(--text-secondary);
    font-size: 15px;
    margin-bottom: 32px;
}

.plan-features {
    list-style: none;
    text-align: left;
    margin-bottom: 32px;
}

.plan-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 0;
    border-bottom: 1px solid var(--glass-border);
    color: var(--text-secondary);
    font-size: 15px;
}

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

.plan-features li svg {
    flex-shrink: 0;
}

/* ============================================
   FAQ Section
   ============================================ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 16px;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 24px 28px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 17px;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: color var(--transition-fast);
}

.faq-question:hover {
    color: var(--accent-primary);
}

.faq-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    transition: transform var(--transition-medium);
    color: var(--text-secondary);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
    color: var(--accent-primary);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-medium);
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    padding: 0 28px 24px;
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 15px;
}

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

.cta-card {
    padding: 80px 40px;
    text-align: center;
    background: linear-gradient(
        135deg,
        rgba(99, 102, 241, 0.1) 0%,
        rgba(139, 92, 246, 0.1) 100%
    );
    border-color: rgba(99, 102, 241, 0.2);
}

.cta-card h2 {
    font-size: clamp(28px, 4vw, 40px);
    margin-bottom: 16px;
}

.cta-card > p {
    color: var(--text-secondary);
    margin-bottom: 40px;
    font-size: 18px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

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

/* ============================================
   Features Strip
   ============================================ */
.features-strip {
    padding: 80px 0;
    border-top: 1px solid var(--glass-border);
}

.strip-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
}

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

.strip-item svg {
    color: var(--accent-primary);
    margin-bottom: 20px;
}

.strip-item h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.strip-item p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    padding: 80px 0 40px;
    border-top: 1px solid var(--glass-border);
    background: rgba(0, 0, 0, 0.3);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(4, 1fr);
    gap: 48px;
    margin-bottom: 60px;
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand > p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 24px;
    max-width: 280px;
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background: var(--glass-bg-hover);
    color: var(--text-primary);
    border-color: var(--glass-border-hover);
}

.footer-links h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.footer-links li {
    margin-bottom: 14px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 15px;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid var(--glass-border);
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 14px;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .two-column-layout {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .column-text h2 {
        text-align: center;
    }

    .column-text > p {
        text-align: center;
    }

    .feature-list {
        max-width: 400px;
        margin: 0 auto;
    }

    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-brand {
        grid-column: 1 / -1;
        text-align: center;
    }

    .footer-brand .logo {
        justify-content: center;
    }

    .footer-brand > p {
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
    }

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

@media (max-width: 768px) {
    :root {
        --section-padding: 80px 0;
    }

    .nav-links,
    .nav-cta {
        display: none;
    }

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

    .mobile-menu {
        display: block;
    }

    .hero {
        padding-top: 120px;
    }

    .mockup-sidebar {
        display: none;
    }

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

    .logo-scroll {
        gap: 32px;
    }

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

    .icon-grid-3x3 {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }

    .pricing-card.featured {
        transform: none;
    }

    .strip-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 32px;
    }

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

    .hero-cta .btn-primary,
    .hero-cta .btn-glass {
        width: 100%;
    }

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

    .cta-card {
        padding: 60px 24px;
    }

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

    .cta-buttons .btn-primary,
    .cta-buttons .btn-glass {
        width: 100%;
    }

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

    .footer-links h4 {
        margin-bottom: 16px;
    }
}

/* ============================================
   Animation Utilities
   ============================================ */
[data-aos] {
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

/* Smooth scrolling for anchor links */
html:focus-within {
    scroll-behavior: smooth;
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}