:root {
  --violet-500: #8b5cf6;
  --violet-600: #7c3aed;
  --violet-700: #6d28d9;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: linear-gradient(135deg, #0f0f23 0%, #1a1a2e 50%, #16213e 100%);
  color: #e2e8f0;
  line-height: 1.6;
  min-height: 100vh;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(15, 15, 35, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(139, 92, 246, 0.2);
}

.nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.25rem;
  color: white;
  text-decoration: none;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--violet-600), var(--violet-500));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.25rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  color: #a5b4fc;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover { color: white; }

.nav-btn {
  background: linear-gradient(135deg, var(--violet-600), var(--violet-500));
  color: white;
  padding: 0.5rem 1.25rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(124, 58, 237, 0.4);
}

.hero {
  padding: 10rem 0 6rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(34, 197, 94, 0.15);
  border: 1px solid rgba(34, 197, 94, 0.3);
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  color: #4ade80;
  margin-bottom: 2rem;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.gradient-text {
  background: linear-gradient(135deg, #c4b5fd 0%, #a855f7 50%, #ec4899 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: #94a3b8;
  max-width: 700px;
  margin: 0 auto 2.5rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 4rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--violet-600), var(--violet-500));
  color: white;
  padding: 1rem 2rem;
  border-radius: 12px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 40px rgba(124, 58, 237, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: white;
  padding: 1rem 2rem;
  border-radius: 12px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.2s;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.25);
}

.detection-types {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.detection-type {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
}

.detection-type.text { background: rgba(59, 130, 246, 0.15); color: #60a5fa; border: 1px solid rgba(59, 130, 246, 0.3); }
.detection-type.image { background: rgba(168, 85, 247, 0.15); color: #c084fc; border: 1px solid rgba(168, 85, 247, 0.3); }
.detection-type.audio { background: rgba(236, 72, 153, 0.15); color: #f472b6; border: 1px solid rgba(236, 72, 153, 0.3); }
.detection-type.video { background: rgba(245, 158, 11, 0.15); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.3); }

.code-snippet {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 1.5rem;
  max-width: 600px;
  margin: 0 auto;
  text-align: left;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.875rem;
  overflow-x: auto;
}

.code-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.code-dot { width: 12px; height: 12px; border-radius: 50%; }
.code-dot.red { background: #ef4444; }
.code-dot.yellow { background: #eab308; }
.code-dot.green { background: #22c55e; }

.code-content { color: #a5b4fc; }
.code-content .comment { color: #6b7280; }
.code-content .string { color: #4ade80; }
.code-content .keyword { color: #f472b6; }

.stats {
  padding: 4rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

@media (max-width: 768px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

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

.stat-value {
  font-size: 3rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--violet-500), #a855f7);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label { color: #94a3b8; font-size: 0.9rem; }

.benchmark, .collage, .comparison, .features, .use-cases, .cta {
  padding: 6rem 0;
}

.collage, .features { background: rgba(0, 0, 0, 0.2); }

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.section-subtitle {
  color: #94a3b8;
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto;
}

.benchmark-table-container, .comparison-table-container {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 2rem;
}

.benchmark-table, .comparison-table {
  width: 100%;
  border-collapse: collapse;
}

.comparison-table-container { overflow-x: auto; }
.comparison-table { min-width: 800px; }

.benchmark-table th,
.benchmark-table td,
.comparison-table th,
.comparison-table td {
  padding: 1rem 1.5rem;
  text-align: left;
}

.comparison-table th,
.comparison-table td { text-align: center; }

.comparison-table th:first-child,
.comparison-table td:first-child {
  text-align: left;
  padding-left: 1.5rem;
}

.benchmark-table th,
.comparison-table th {
  background: rgba(124, 58, 237, 0.2);
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #c4b5fd;
}

.comparison-table th.highlight {
  background: linear-gradient(135deg, var(--violet-600), var(--violet-500));
  color: white;
}

.benchmark-table td,
.comparison-table td {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.benchmark-table tr:hover td,
.comparison-table tr:hover td {
  background: rgba(124, 58, 237, 0.1);
}

.accuracy-bar {
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  overflow: hidden;
  margin-top: 0.5rem;
}

.accuracy-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--violet-600), var(--violet-500));
  border-radius: 4px;
}

.accuracy-90 { width: 90%; }
.accuracy-50 { width: 50%; }
.accuracy-46 { width: 46%; }

.benchmark-note {
  text-align: center;
  color: #94a3b8;
  font-size: 0.875rem;
}

.benchmark-link { color: #a5b4fc; }

.collage-note {
  text-align: center;
  margin-top: 2rem;
  color: #94a3b8;
  font-size: 0.875rem;
}

.metric-good { color: #4ade80; }
.metric-warning { color: #fbbf24; }
.metric-pending { color: #94a3b8; font-style: italic; }
.check-yes { color: #4ade80; font-size: 1.25rem; }
.check-no { color: #ef4444; font-size: 1.25rem; }
.check-partial { color: #fbbf24; font-size: 0.875rem; }

.collage-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.5rem;
}

@media (max-width: 1024px) { .collage-grid { grid-template-columns: repeat(4, 1fr); } }
@media (max-width: 768px) { .collage-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 480px) { .collage-grid { grid-template-columns: repeat(2, 1fr); } }

.collage-item {
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: 8px;
  position: relative;
}

.collage-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.collage-item:hover img { transform: scale(1.1); }

.collage-item::after {
  content: attr(data-label);
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 0.5rem;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
  opacity: 0;
  transition: opacity 0.3s;
}

.collage-item:hover::after { opacity: 1; }
.collage-item.human::after { color: #4ade80; }
.collage-item.ai::after { color: #f472b6; }

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

@media (max-width: 1024px) { .features-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .features-grid { grid-template-columns: 1fr; } }

.feature-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.3s ease;
}

.feature-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(124, 58, 237, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--violet-600), var(--violet-500));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

.feature-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.feature-desc {
  color: #94a3b8;
  font-size: 0.9rem;
  line-height: 1.6;
}

.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

@media (max-width: 768px) { .use-cases-grid { grid-template-columns: 1fr; } }

.use-case-card {
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.1), rgba(168, 85, 247, 0.05));
  border: 1px solid rgba(124, 58, 237, 0.2);
  border-radius: 16px;
  padding: 2rem;
}

.use-case-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.use-case-list { list-style: none; }

.use-case-list li {
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
  color: #cbd5e1;
  font-size: 0.9rem;
}

.use-case-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background: var(--violet-500);
  border-radius: 50%;
}

.cta {
  text-align: center;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.2), rgba(168, 85, 247, 0.1));
  border-top: 1px solid rgba(124, 58, 237, 0.2);
}

.cta-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.cta-subtitle {
  color: #94a3b8;
  font-size: 1.125rem;
  margin-bottom: 2rem;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

footer {
  padding: 3rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  text-align: center;
}

.footer-links {
  display: flex;
  gap: 2rem;
  justify-content: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: #94a3b8;
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.2s;
}

.footer-links a:hover { color: white; }

.footer-copy {
  color: #64748b;
  font-size: 0.875rem;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .mobile-menu-btn { display: block; }
}