/* ============================================
   Modern CSS Reset & Base Styles
   ============================================ */

:root {
  /* Accessible Color Palette - WCAG AA Compliant */
  --color-primary: #6366f1;
  --color-primary-dark: #4f46e5;
  --color-primary-light: #818cf8;
  --color-secondary: #8b5cf6;
  --color-accent: #ec4899;
  
  /* Neutral Colors */
  --color-bg: #0a0a0f;
  --color-bg-secondary: #111118;
  --color-bg-tertiary: #1a1a24;
  --color-surface: rgba(255, 255, 255, 0.05);
  --color-surface-hover: rgba(255, 255, 255, 0.08);
  
  /* Text Colors */
  --color-text-primary: #ffffff;
  --color-text-secondary: rgba(255, 255, 255, 0.7);
  --color-text-tertiary: rgba(255, 255, 255, 0.5);
  
  /* Border & Shadow */
  --color-border: rgba(255, 255, 255, 0.1);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
  
  /* Container */
  --container-max-width: 1200px;
  --container-padding: 1.5rem;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-overflow-scrolling: touch;
}

* {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  overflow-x: hidden;
  cursor: none; /* Hide default cursor */
  /* Performance optimizations */
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-y: contain;
}

/* Custom Cursor */
.cursor-dot {
  width: 8px;
  height: 8px;
  background: var(--color-primary);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width 0.2s, height 0.2s, background 0.2s;
  mix-blend-mode: difference;
}

.cursor-dot.active {
  width: 40px;
  height: 40px;
  background: rgba(99, 102, 241, 0.2);
  border: 2px solid var(--color-primary);
}

.cursor-dot.hover {
  width: 60px;
  height: 60px;
  background: rgba(99, 102, 241, 0.1);
  border: 2px solid var(--color-primary);
}

.cursor-outline {
  width: 40px;
  height: 40px;
  border: 2px solid var(--color-primary);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: width 0.3s cubic-bezier(0.23, 1, 0.32, 1), 
              height 0.3s cubic-bezier(0.23, 1, 0.32, 1),
              border-color 0.3s,
              opacity 0.3s;
  opacity: 0.5;
  mix-blend-mode: difference;
}

.cursor-outline.active {
  width: 80px;
  height: 80px;
  border-color: var(--color-accent);
  opacity: 0.8;
}

.cursor-outline.hover {
  width: 100px;
  height: 100px;
  border-color: var(--color-secondary);
  opacity: 1;
}

/* Show default cursor on mobile */
@media (max-width: 768px) {
  body {
    cursor: auto;
  }
  .cursor-dot,
  .cursor-outline {
    display: none;
  }
}

/* ============================================
   Utility Classes
   ============================================ */

.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: var(--spacing-3xl) 0;
  position: relative;
}

/* ============================================
   Header & Navigation
   ============================================ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-base), box-shadow var(--transition-base);
  will-change: background, box-shadow;
  transform: translateZ(0);
}

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

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--container-padding);
  min-height: 80px;
}

.logo img {
  height: 40px;
  width: auto;
  transition: transform var(--transition-base);
}

.logo:hover img {
  transform: scale(1.05);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.nav-list {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
  align-items: center;
}

.nav-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  position: relative;
  transition: color var(--transition-base);
  padding: var(--spacing-xs) 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-social {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--color-text-secondary);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  background: var(--color-surface);
}

.social-link:hover {
  color: var(--color-text-primary);
  background: var(--color-surface-hover);
  transform: translateY(-2px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  z-index: 1001;
}

.nav-toggle span {
  width: 28px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 100px;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: -1;
  overflow: hidden;
  will-change: transform;
  transform: translateZ(0);
}

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  animation: float 20s ease-in-out infinite;
  will-change: transform;
  transform: translateZ(0);
}

.orb-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--color-primary), transparent);
  top: -200px;
  left: -200px;
  animation-delay: 0s;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--color-secondary), transparent);
  bottom: -150px;
  right: -150px;
  animation-delay: 5s;
}

.orb-3 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, var(--color-accent), transparent);
  top: 50%;
  right: 10%;
  animation-delay: 10s;
}

@keyframes float {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(30px, -30px) scale(1.1);
  }
  66% {
    transform: translate(-20px, 20px) scale(0.9);
  }
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-text {
  animation: fadeInUp 0.8s ease-out;
}

.hero-title {
  font-size: var(--font-size-6xl);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, var(--color-text-primary), var(--color-primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.title-subtitle {
  display: block;
  font-size: var(--font-size-2xl);
  font-weight: 400;
  color: var(--color-text-secondary);
  margin-top: var(--spacing-sm);
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  max-width: 500px;
  line-height: 1.8;
}

.hero-image {
  position: relative;
  animation: fadeInRight 0.8s ease-out 0.2s both;
}

.image-wrapper {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-glow);
}

.hero-img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-xl);
}

.floating-shape {
  position: absolute;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  opacity: 0.3;
  filter: blur(40px);
  animation: floatShape 15s ease-in-out infinite;
}

.shape-1 {
  width: 200px;
  height: 200px;
  top: -50px;
  right: -50px;
  animation-delay: 0s;
}

.shape-2 {
  width: 150px;
  height: 150px;
  bottom: -30px;
  left: -30px;
  animation-delay: 7.5s;
}

@keyframes floatShape {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(20px, -20px) scale(1.2);
  }
}

.scroll-indicator {
  position: absolute;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  animation: bounce 2s infinite;
}

.mouse {
  width: 30px;
  height: 50px;
  border: 2px solid var(--color-text-tertiary);
  border-radius: 20px;
  position: relative;
}

.wheel {
  width: 4px;
  height: 8px;
  background: var(--color-text-tertiary);
  border-radius: 2px;
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  animation: scroll 2s infinite;
}

@keyframes bounce {
  0%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  50% {
    transform: translateX(-50%) translateY(-10px);
  }
}

@keyframes scroll {
  0% {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateX(-50%) translateY(20px);
  }
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-base);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: var(--color-text-primary);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

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

.btn-large {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: var(--font-size-lg);
}

/* ============================================
   Section Headers
   ============================================ */

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-title {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, var(--color-text-primary), var(--color-primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

/* ============================================
   Features Section
   ============================================ */

.features {
  background: var(--color-bg-secondary);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
}

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: transform var(--transition-base), background var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
  position: relative;
  overflow: hidden;
  will-change: transform;
  transform: translateZ(0);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-8px);
  background: var(--color-surface-hover);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
  transition: transform var(--transition-base);
}

.feature-card:hover .feature-icon {
  transform: scale(1.1) rotate(5deg);
}

.feature-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-primary);
}

.feature-description {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ============================================
   About Section
   ============================================ */

.about {
  background: var(--color-bg);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.about-image {
  position: relative;
}

.image-container {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.image-container img {
  width: 100%;
  height: auto;
  display: block;
}

.image-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.3), transparent);
  pointer-events: none;
  animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 0.5;
    transform: translate(-50%, -50%) scale(1);
  }
  50% {
    opacity: 0.8;
    transform: translate(-50%, -50%) scale(1.1);
  }
}

.about-steps {
  animation: fadeInRight 0.8s ease-out;
}

.steps-list {
  margin: var(--spacing-xl) 0;
}

.step-item {
  display: flex;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  padding: var(--spacing-lg);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: transform var(--transition-base), background var(--transition-base), border-color var(--transition-base);
  animation: fadeInUp 0.6s ease-out both;
  will-change: transform;
  transform: translateZ(0);
}

.step-item:nth-child(1) { animation-delay: 0.1s; }
.step-item:nth-child(2) { animation-delay: 0.2s; }
.step-item:nth-child(3) { animation-delay: 0.3s; }

.step-item:hover {
  transform: translateX(8px);
  background: var(--color-surface-hover);
  border-color: var(--color-primary);
}

.step-number {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  min-width: 60px;
  flex-shrink: 0;
}

.step-content {
  flex: 1;
}

.step-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text-primary);
}

.step-description {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ============================================
   Videos Section
   ============================================ */

.videos {
  background: var(--color-bg-secondary);
}

.videos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--spacing-xl);
}

.video-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
  animation: fadeInUp 0.6s ease-out both;
  will-change: transform;
  transform: translateZ(0);
}

.video-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
}

.video-thumbnail {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 aspect ratio */
  background: var(--color-bg-tertiary);
  overflow: hidden;
}

.video-thumbnail img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 64px;
  height: 64px;
  background: rgba(0, 0, 0, 0.7);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-base);
  backdrop-filter: blur(10px);
}

.video-play-button:hover {
  background: rgba(99, 102, 241, 0.9);
  transform: translate(-50%, -50%) scale(1.1);
}

.video-play-button svg {
  width: 24px;
  height: 24px;
  fill: var(--color-text-primary);
  margin-left: 4px;
}

.video-info {
  padding: var(--spacing-lg);
}

.video-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text-primary);
}

.video-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* ============================================
   CTA Section
   ============================================ */

.cta {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
}

.cta-content {
  text-align: center;
  position: relative;
  z-index: 1;
  animation: fadeInUp 0.8s ease-out;
}

.cta-title {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

.cta-description {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   Footer
   ============================================ */

.footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

.footer-text {
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.footer-contact {
  list-style: none;
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
}

.footer-contact li svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-primary);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.form-group {
  position: relative;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  transition: all var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-message {
  margin-top: var(--spacing-sm);
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  text-align: center;
  font-size: var(--font-size-sm);
  display: none;
}

.form-message.success {
  display: block;
  background: rgba(34, 197, 94, 0.1);
  color: #4ade80;
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.form-message.error {
  display: block;
  background: rgba(239, 68, 68, 0.1);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.copyright {
  color: var(--color-text-tertiary);
  font-size: var(--font-size-sm);
}

.footer-social {
  display: flex;
  gap: var(--spacing-sm);
}

/* ============================================
   Animations
   ============================================ */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out both;
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 1024px) {
  :root {
    --font-size-6xl: 3rem;
    --font-size-5xl: 2.5rem;
    --font-size-4xl: 2rem;
    --spacing-3xl: 4rem;
  }
  
  .hero-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }
  
  .about-content {
    grid-template-columns: 1fr;
  }
  
  .about-image {
    order: -1;
  }
}

@media (max-width: 768px) {
  :root {
    --container-padding: 1rem;
    --font-size-6xl: 2.5rem;
    --font-size-5xl: 2rem;
    --font-size-3xl: 1.5rem;
    --spacing-3xl: 3rem;
    --spacing-2xl: 2rem;
  }
  
  /* Reduce expensive effects on mobile */
  .header {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 400px;
    height: 100vh;
    background: var(--color-bg-secondary);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--spacing-2xl);
    transition: right var(--transition-base);
    border-left: 1px solid var(--color-border);
    z-index: 1000;
    will-change: transform;
    transform: translateZ(0);
  }
  
  /* Reduce blur effects on mobile for better performance */
  .gradient-orb {
    filter: blur(40px);
    opacity: 0.3;
  }
  
  .floating-shape {
    filter: blur(20px);
    opacity: 0.2;
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    gap: var(--spacing-md);
  }
  
  .nav-social {
    margin-top: var(--spacing-lg);
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .hero {
    min-height: auto;
    padding-top: calc(90px + var(--spacing-xl));
    padding-bottom: var(--spacing-2xl);
    align-items: flex-start;
  }

  .hero-content {
    margin-top: var(--spacing-md);
  }
  
  .hero-title {
    font-size: var(--font-size-4xl);
  }
  
  .title-subtitle {
    font-size: var(--font-size-xl);
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .videos-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .scroll-indicator {
    display: none;
  }
}

@media (max-width: 480px) {
  :root {
    --font-size-6xl: 2rem;
    --font-size-5xl: 1.75rem;
    --spacing-xl: 1.5rem;
  }
  
  .section {
    padding: var(--spacing-2xl) 0;
  }
  
  .btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
  }
  
  .step-item {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .step-number {
    min-width: auto;
  }
}

/* ============================================
   Accessibility
   ============================================ */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ============================================
   Loading States
   ============================================ */

.loading {
  opacity: 0.6;
  pointer-events: none;
}

.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-surface) 25%,
    var(--color-surface-hover) 50%,
    var(--color-surface) 75%
  );
  background-size: 200% 100%;
  animation: loading 1.5s ease-in-out infinite;
}

@keyframes loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}