body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #05060a;
  color: #f5f5f7;
}

a {
  color: #7b5cff;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 32px;
  border-bottom: 1px solid #222533;
  background: #05060a;
  position: sticky;
  top: 0;
  z-index: 10;
}

.logo {
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.nav a {
  margin-left: 16px;
  font-size: 0.9rem;
}

.nav a.active {
  color: #ffffff;
  font-weight: 600;
}

.page {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 16px 64px;
}

.hero {
  margin-bottom: 32px;
}

.hero h1 {
  font-size: 2.2rem;
  margin-bottom: 8px;
}

.hero p {
  max-width: 640px;
  color: #c3c4cf;
}

section {
  margin-bottom: 32px;
}

.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 32px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.card {
  border: 1px solid #222533;
  border-radius: 10px;
  padding: 18px 16px;
  background: #0b0c12;
}

.card h2, .card h3 {
  margin-top: 0;
}

.button {
  display: inline-block;
  margin-top: 12px;
  padding: 10px 20px;
  border-radius: 999px;
  background: #7b5cff;
  color: #fff;
  font-weight: 600;
  box-shadow: 0 0 18px rgba(123,92,255,0.35);
  transition: 0.2s ease;
}

.button:hover {
  box-shadow: 0 0 28px rgba(123,92,255,0.55);
  transform: translateY(-1px);
}

.site-footer {
  border-top: 1px solid #222533;
  padding: 18px 32px;
  font-size: 0.85rem;
  color: #8b8da0;
  text-align: center;
}

.cta-text {
  margin-top: 12px;
  color: #c3c4cf;
}

.surface-switcher {
  position: absolute;
  top: 12px;
  right: 12px;
  display: flex;
  gap: 12px;
  z-index: 9999;
}

.surface-link {
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  opacity: 0.75;
  text-decoration: none;
  padding: 4px 8px;
  border-radius: 4px;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(4px);
  transition: opacity 0.2s ease;
}

.surface-link:hover {
  opacity: 1;
}

@media (max-width: 480px) {
  .site-header {
    padding-top: 48px;
  }
}