:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --bg-primary: #0a0e14;
  --bg-secondary: #141922;
  --bg-accent: #1a2332;
  --text-primary: #f0f2f5;
  --text-secondary: #a8b3c4;
  --text-muted: #6b7789;
  --accent-primary: #00d9ff;
  --accent-secondary: #7c3aed;
  --accent-hot: #ff3366;
  --border-color: #252d3d;
  --success: #10b981;
  --warning: #f59e0b;
}

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

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text-primary);
  background: var(--bg-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Navigation */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 14, 20, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

.nav-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: 0.05em;
  text-decoration: none;
  color: var(--accent-primary);
  text-transform: uppercase;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
  font-size: 0.95rem;
}

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

.nav-links a[aria-current="page"] {
  color: var(--accent-primary);
}

/* Hero Section */
.hero {
  min-height: calc(100vh - 72px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 2rem;
  background: linear-gradient(135deg, #0a0e14 0%, #1a1433 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 217, 255, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  max-width: 700px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, var(--accent-primary), #fff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  display: block;
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-hot), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-top: 0.25rem;
}

.hero-tagline {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 700;
  color: var(--text-primary);
  margin: 1.5rem 0;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-description {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 1.5rem auto 2.5rem;
  max-width: 600px;
}

.hero-description strong {
  color: var(--accent-primary);
  font-weight: 700;
}

/* Buttons */
.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-top: 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 0.75rem;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: #fff;
  box-shadow: 0 4px 16px rgba(0, 217, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 217, 255, 0.4);
}

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

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

.download-note {
  margin-top: 1.5rem;
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* Media Showcase Section - Video + Screenshots */
.media-showcase {
  padding: 5rem 2rem;
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
}

.media-content {
  max-width: 1200px;
  margin: 0 auto;
}

.media-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2rem;
  margin-top: 3rem;
  align-items: start;
}

.media-video {
  position: relative;
  max-width: 360px;
}

.video-wrapper {
  position: relative;
  padding-bottom: 177.78%;
  height: 0;
  overflow: hidden;
  border-radius: 1rem;
  border: 1px solid var(--border-color);
  background: var(--bg-accent);
  box-shadow: 0 8px 32px rgba(0, 217, 255, 0.15);
}

.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 1rem;
}

.media-screenshots {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.screenshot {
  position: relative;
  border-radius: 1rem;
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
  background: var(--bg-accent);
}

.screenshot:hover {
  transform: translateY(-4px);
  border-color: var(--accent-primary);
  box-shadow: 0 8px 24px rgba(0, 217, 255, 0.2);
}

.screenshot img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.3s ease;
}

.screenshot:hover img {
  transform: scale(1.03);
}

/* Features Section */
.features {
  padding: 5rem 2rem;
  background: var(--bg-primary);
}

.features-content {
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 900;
  text-align: center;
  margin-bottom: 3rem;
  letter-spacing: -0.02em;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.feature {
  background: var(--bg-secondary);
  padding: 2rem;
  border-radius: 1rem;
  border: 1px solid var(--border-color);
  text-align: center;
  transition: all 0.3s ease;
}

.feature:hover {
  transform: translateY(-4px);
  border-color: var(--accent-primary);
  box-shadow: 0 8px 24px rgba(0, 217, 255, 0.15);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.feature h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

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

/* Policy/Support Pages */
.policy-page {
  max-width: 800px;
  margin: 0 auto;
  padding: 3rem 2rem 5rem;
}

.policy-content {
  background: var(--bg-secondary);
  padding: 3rem;
  border-radius: 1rem;
  border: 1px solid var(--border-color);
}

.policy-content h1 {
  font-size: clamp(2rem, 5vw, 2.5rem);
  font-weight: 900;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.policy-meta {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
}

.policy-section {
  margin-bottom: 2.5rem;
}

.policy-section h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.policy-section h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 1.5rem 0 0.75rem;
  color: var(--text-primary);
}

.policy-section p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.policy-section ul {
  margin-left: 1.5rem;
  margin-bottom: 1rem;
}

.policy-section li {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 0.5rem;
}

.policy-section a {
  color: var(--accent-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.policy-section a:hover {
  border-bottom-color: var(--accent-primary);
}

.contact-info {
  background: var(--bg-accent);
  padding: 1.25rem;
  border-radius: 0.5rem;
  border-left: 3px solid var(--accent-primary);
  margin: 1rem 0;
}

.faq-item {
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
}

.faq-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.faq-item h3 {
  color: var(--accent-primary);
}

/* Footer */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 2.5rem 2rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

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

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

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

/* Responsive Design */
@media (max-width: 768px) {
  .nav-content {
    padding: 1rem 1.5rem;
  }

  .nav-links {
    gap: 1rem;
  }

  .hero {
    min-height: auto;
    padding: 4rem 1.5rem;
  }

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

  .btn {
    width: 100%;
    justify-content: center;
  }

  .media-showcase {
    padding: 3rem 1.5rem;
  }

  .media-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .media-video {
    max-width: 100%;
  }

  .features {
    padding: 3rem 1.5rem;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .policy-content {
    padding: 2rem 1.5rem;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
  }

  .footer-links {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .policy-content {
    padding: 1.5rem 1rem;
  }

  .policy-section ul {
    margin-left: 1rem;
  }
}