:root {
  color-scheme: dark;
  --bg: #080b14;
  --bg-soft: #10182a;
  --bg-elevated: rgba(22, 30, 48, 0.6);
  --text: #f6f8ff;
  --text-secondary: #a7b1cd;
  --accent: #4fb4ff;
  --accent-glow: rgba(79, 180, 255, 0.4);
  --border: rgba(140, 166, 219, 0.15);
  --border-hover: rgba(140, 166, 219, 0.3);
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.2), 0 10px 10px -5px rgba(0, 0, 0, 0.1);
  --glass: blur(12px);
  --font-main: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-main);
  color: var(--text);
  background-color: var(--bg);
  background-image:
    radial-gradient(circle at 80% -10%, rgba(79, 180, 255, 0.15), transparent 40%),
    radial-gradient(circle at -10% 20%, rgba(60, 40, 255, 0.12), transparent 40%),
    linear-gradient(180deg, #080b14 0%, #0c121f 100%);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--accent);
}

.container {
  width: min(100% - 2rem, 1120px);
  margin: 0 auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: var(--glass);
  -webkit-backdrop-filter: var(--glass);
  background: rgba(8, 11, 20, 0.6);
  border-bottom: 1px solid var(--border);
  z-index: 100;
  transition: all 0.3s ease;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  font-size: 1.1rem;
}

.brand img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1rem;
  padding: 0;
  margin: 0;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  align-items: center;
}

.nav-links a {
  position: relative;
  padding: 0.5rem 1rem;
  border-radius: 99px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}

.nav-links a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 16px rgba(79, 180, 255, 0.15);
  text-shadow: 0 0 8px rgba(255, 255, 255, 0.5);
}

/* Hero */
.hero {
  padding: 6rem 0 4rem;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-content {
  max-width: 580px;
}

.eyebrow {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
  font-size: 0.75rem;
  margin-bottom: 1rem;
  display: block;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1.1;
  margin: 0 0 1.5rem;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #fff 30%, #a5b4fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-copy {
  color: var(--text-secondary);
  font-size: 1.125rem;
  margin-bottom: 2rem;
  max-width: 540px;
}

.badge-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0;
  margin: 0 0 2.5rem;
}

.badge-list li {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  padding: 0.4rem 0.85rem;
  border-radius: 100px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
  transition: all 0.2s ease;
}

.badge-list li:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
}

.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  padding: 0.85rem 1.75rem;
  border-radius: 12px;
  transition: all 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
  text-decoration: none;
  font-size: 1rem;
}

.btn-primary {
  background: var(--accent);
  color: #080b14;
  border: 1px solid transparent;
  box-shadow: 0 4px 14px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px var(--accent-glow);
  filter: brightness(1.1);
  color: #080b14;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  color: var(--text);
}

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

.btn-secondary[aria-disabled="true"] {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

/* Hero Image */
.hero-image-wrap {
  margin: 0;
  padding: 10px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg), 0 0 120px rgba(79, 180, 255, 0.1);
  position: relative;
  transition: transform 0.5s ease;
}

.hero-image-wrap:hover {
  transform: scale(1.02);
}

.hero-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, 0.2);
}

/* Features Section */
.section {
  padding: 5rem 0;
}

h2 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  margin-bottom: 2rem;
  letter-spacing: -0.01em;
}

.section p.section-copy {
  margin-bottom: 3rem;
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 60ch;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.card {
  padding: 1.75rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 16px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  background: rgba(30, 41, 59, 0.6);
  box-shadow: var(--shadow-lg);
}

.card h3 {
  margin: 0 0 0.75rem;
  font-size: 1.25rem;
  color: var(--text);
}

.card p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Settings Section */
.settings-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.settings-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.settings-list li {
  padding: 1rem 1.25rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  display: flex;
  gap: 0.75rem;
  align-items: baseline;
  transition: background 0.2s ease;
}

.settings-list li:hover {
  background: rgba(30, 41, 59, 0.6);
  border-color: var(--border-hover);
}

.settings-list li strong {
  color: var(--text);
  white-space: nowrap;
}

.settings-list li::before {
  content: "✓";
  color: var(--accent);
  font-weight: bold;
}

/* Video Section */
.hero-video-placeholder {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  background: #000;
}

.video-slot {
  aspect-ratio: 16/9;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-secondary);
}

/* Gallery Section */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 200px;
  gap: 1rem;
}

.gallery-item {
  margin: 0;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
  position: relative;
  transition: transform 0.3s ease;
  background: var(--bg-elevated);
  padding: 0;
}

.gallery-item:hover {
  transform: scale(1.03);
  z-index: 2;
  box-shadow: var(--shadow-lg);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: rgba(0,0,0,0.2);
  display: block;
  padding: 1rem;
}

/* First item spans 2x2 */
.gallery-wide {
  grid-column: span 2;
  grid-row: span 2;
}

.gallery-wide img {
  object-fit: cover;
  padding: 0;
}

/* Footer */
.site-footer {
  margin-top: 4rem;
  padding: 3rem 0;
  border-top: 1px solid var(--border);
  background: rgba(8, 11, 20, 0.3);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
}

.footer-content a {
  color: var(--text-secondary);
}

.footer-content a:hover {
  color: var(--text);
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
  }

  .hero-content {
    margin: 0 auto;
  }

  .cta-group, .badge-list {
    justify-content: center;
  }

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

@media (max-width: 650px) {
  .nav-links {
    display: none;
  }
  
  h1 {
    font-size: 2.5rem;
  }
  
  .gallery-grid {
    grid-template-columns: 1fr 1fr; /* 2 columns on mobile */
    grid-auto-rows: 150px;
  }
  
  .gallery-wide {
    grid-column: span 2;
    grid-row: span 2;
  }
}