:root {
  --bg-base: #0c0d10;
  --bg-elevated: #16181d;
  --bg-elevated-2: #1c1f26;
  --stroke-subtle: #2a2d34;
  --text-primary: #f4f5f7;
  --text-secondary: #9aa0ab;
  --text-tertiary: #6e7480;
  --accent-mint: #5ce0b8;
  --accent-mint-dim: rgba(92, 224, 184, 0.14);
  --accent-gold: #e7b84b;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
}

body {
  margin: 0;
  background: var(--bg-base);
  background-image:
    radial-gradient(560px 320px at 12% -8%, rgba(92, 224, 184, 0.10), transparent 60%),
    radial-gradient(480px 300px at 100% 0%, rgba(231, 184, 75, 0.06), transparent 55%);
  background-repeat: no-repeat;
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  line-height: 1.65;
}

a {
  color: var(--accent-mint);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.wrap {
  max-width: 660px;
  margin: 0 auto;
  padding: 0 22px 96px;
}

/* Header */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 28px 0 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1.02em;
  letter-spacing: -0.01em;
}

.brand:hover {
  text-decoration: none;
  opacity: 0.85;
}

.brand-mark {
  display: block;
  flex: none;
  border-radius: 22%;
}

.tabs {
  display: inline-flex;
  gap: 2px;
  padding: 3px;
  background: var(--bg-elevated);
  border: 1px solid var(--stroke-subtle);
  border-radius: 999px;
}

.tabs a {
  color: var(--text-secondary);
  font-size: 0.86em;
  font-weight: 500;
  padding: 6px 13px;
  border-radius: 999px;
}

.tabs a:hover {
  color: var(--text-primary);
  text-decoration: none;
}

.tabs a[aria-current="page"] {
  background: var(--accent-mint-dim);
  color: var(--accent-mint);
}

/* Hero (index only) */

.hero {
  padding: 56px 0 40px;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--accent-mint);
  font-size: 0.78em;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.kicker::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-mint);
  box-shadow: 0 0 10px 1px var(--accent-mint);
}

.hero h1 {
  font-size: 2.15em;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}

.hero p {
  color: var(--text-secondary);
  font-size: 1.05em;
  max-width: 46ch;
  margin: 0;
}

.link-grid {
  display: grid;
  gap: 12px;
  margin-top: 36px;
}

.link-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  background: var(--bg-elevated);
  border: 1px solid var(--stroke-subtle);
  border-radius: 14px;
  color: var(--text-primary);
  transition: border-color 0.15s ease, transform 0.15s ease, background 0.15s ease;
}

.link-card:hover {
  border-color: var(--accent-mint);
  background: var(--bg-elevated-2);
  transform: translateY(-1px);
  text-decoration: none;
}

.link-card .title {
  display: block;
  font-weight: 600;
  font-size: 1.02em;
}

.link-card .desc {
  display: block;
  color: var(--text-tertiary);
  font-size: 0.88em;
  margin-top: 4px;
}

.link-card .chev {
  color: var(--text-tertiary);
  flex: none;
}

.link-card:hover .chev {
  color: var(--accent-mint);
}

/* Document pages */

.doc-header {
  padding: 8px 0 4px;
}

.doc-header h1 {
  font-size: 1.7em;
  letter-spacing: -0.015em;
  margin: 0 0 10px;
}

.note {
  color: var(--text-tertiary);
  font-size: 0.86em;
}

.card {
  background: var(--bg-elevated);
  border: 1px solid var(--stroke-subtle);
  border-radius: 16px;
  padding: 8px 28px 20px;
  margin-top: 28px;
}

.card h2 {
  font-size: 0.78em;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin: 2.1em 0 0.9em;
  padding-top: 1.1em;
  border-top: 1px solid var(--stroke-subtle);
}

.card > h2:first-child {
  margin-top: 1.4em;
  padding-top: 0;
  border-top: none;
}

.card p,
.card li {
  color: var(--text-primary);
  font-size: 0.97em;
}

.card ul {
  padding-left: 1.2em;
}

.card li {
  margin: 0.4em 0;
}

.card strong {
  color: var(--text-primary);
}

.card code {
  background: var(--bg-elevated-2);
  border: 1px solid var(--stroke-subtle);
  border-radius: 5px;
  padding: 0.1em 0.4em;
  font-size: 0.92em;
  color: var(--accent-mint);
}

.placeholder {
  color: #ffb4a8;
  background: rgba(224, 108, 108, 0.14);
  padding: 2px 7px;
  border-radius: 5px;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.9em;
}

/* Footer */

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--stroke-subtle);
  color: var(--text-tertiary);
  font-size: 0.85em;
}

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

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.7em;
  }
  .card {
    padding: 4px 18px 12px;
  }
  .site-header {
    padding-top: 22px;
  }
}