/* StackVault Website — Dark Gold Theme */

:root {
  --bg-primary: #0a0b0d;
  --bg-secondary: #1a1a1d;
  --bg-card: #141416;
  --bg-card-hover: #1e1e22;
  --gold: #D4AF37;
  --gold-dim: #b8962e;
  --gold-glow: rgba(212, 175, 55, 0.15);
  --text-primary: #f0f0f0;
  --text-secondary: #a0a0a0;
  --text-muted: #666;
  --border: #2a2a2e;
  --radius: 12px;
  --max-width: 960px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--gold);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--gold-dim);
}

/* Layout */

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

/* Header / Nav */

header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 11, 13, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
}

.nav-brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.nav-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

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

/* Hero */

.hero {
  text-align: center;
  padding: 80px 24px 60px;
}

.hero-icon {
  width: 120px;
  height: 120px;
  border-radius: 28px;
  margin-bottom: 28px;
  box-shadow: 0 8px 40px rgba(212, 175, 55, 0.2);
}

.hero h1 {
  font-size: 2.8rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}

.hero h1 .gold {
  color: var(--gold);
}

.hero .subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-style: italic;
}

.hero .tagline {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.5;
}

.badge-row {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 18px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
}

/* Features */

.features {
  padding: 60px 0;
}

.features h2 {
  text-align: center;
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 40px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: background 0.2s, border-color 0.2s;
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--gold-dim);
}

.feature-card .icon {
  font-size: 1.8rem;
  margin-bottom: 12px;
  display: block;
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--gold);
}

.feature-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* CTA */

.cta {
  text-align: center;
  padding: 60px 24px;
  border-top: 1px solid var(--border);
}

.cta h2 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.cta p {
  color: var(--text-secondary);
  margin-bottom: 28px;
  font-size: 1rem;
}

.btn-primary {
  display: inline-block;
  background: var(--gold);
  color: #0a0b0d;
  font-weight: 700;
  font-size: 1rem;
  padding: 14px 36px;
  border-radius: 999px;
  transition: background 0.2s, transform 0.15s;
}

.btn-primary:hover {
  background: var(--gold-dim);
  color: #0a0b0d;
  transform: translateY(-1px);
}

/* Footer */

footer {
  border-top: 1px solid var(--border);
  padding: 32px 24px;
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

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

.footer-copy {
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* Legal Pages */

.legal {
  padding: 60px 0 80px;
}

.legal h1 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.legal .effective {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 40px;
}

.legal h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-top: 36px;
  margin-bottom: 12px;
  color: var(--gold);
}

.legal p,
.legal li {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 12px;
}

.legal ul {
  padding-left: 24px;
  margin-bottom: 16px;
}

.legal li {
  margin-bottom: 6px;
}

.legal a {
  color: var(--gold);
}

/* Responsive */

@media (max-width: 640px) {
  .hero {
    padding: 48px 16px 40px;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero .tagline {
    font-size: 1.05rem;
  }

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

  .nav-links {
    gap: 16px;
  }
}