:root {
  --ink-900: #07090f;
  --ink-800: #0a0e1a;
  --ink-700: #111727;
  --ink-500: #232c44;
  --text-primary: #f5f1e8;
  --text-secondary: #a3a7b8;
  --text-tertiary: #5b6079;
  --amber: #ffb547;
  --amber-soft: #ffd88c;
  --hairline: rgba(255, 255, 255, 0.06);
  --hairline-strong: rgba(255, 255, 255, 0.12);
  --max-width: 760px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--ink-900);
  color: var(--text-primary);
  font-family: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  font-size: 16px;
}

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

a:hover {
  color: var(--amber-soft);
  text-decoration: underline;
}

header.site-header {
  border-bottom: 1px solid var(--hairline);
  padding: 24px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  font-family: "Georgia", "Times New Roman", serif;
  font-style: italic;
  font-size: 22px;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.brand .dot {
  color: var(--amber);
}

nav.top-nav {
  display: flex;
  gap: 24px;
}

nav.top-nav a {
  font-family: "JetBrains Mono", "Courier New", monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

nav.top-nav a.active {
  color: var(--amber);
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 56px 24px 96px;
}

.eyebrow {
  font-family: "JetBrains Mono", "Courier New", monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 12px;
}

h1 {
  font-family: "Georgia", "Times New Roman", serif;
  font-style: italic;
  font-size: 40px;
  font-weight: 400;
  letter-spacing: -0.01em;
  margin: 0 0 8px;
}

.updated {
  font-family: "JetBrains Mono", "Courier New", monospace;
  font-size: 12px;
  color: var(--text-tertiary);
  margin-bottom: 48px;
}

h2 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 48px 0 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--hairline-strong);
}

h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 28px 0 12px;
}

p, li {
  color: var(--text-secondary);
  font-size: 15px;
}

ul, ol {
  padding-left: 22px;
}

li {
  margin-bottom: 8px;
}

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

.callout {
  background: var(--ink-700);
  border: 1px solid var(--hairline-strong);
  border-left: 3px solid var(--amber);
  border-radius: 14px;
  padding: 20px 22px;
  margin: 24px 0;
}

.callout p {
  margin: 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 14px;
}

th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--hairline);
  color: var(--text-secondary);
}

th {
  font-family: "JetBrains Mono", "Courier New", monospace;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

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

footer p {
  font-family: "JetBrains Mono", "Courier New", monospace;
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
}

.index-links {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 32px;
}

.index-link-card {
  display: block;
  background: var(--ink-700);
  border: 1px solid var(--hairline-strong);
  border-radius: 14px;
  padding: 24px;
  transition: border-color 220ms cubic-bezier(0.2, 0.7, 0.2, 1);
}

.index-link-card:hover {
  border-color: var(--amber);
  text-decoration: none;
}

.index-link-card .title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  display: block;
  margin-bottom: 4px;
}

.index-link-card .desc {
  font-size: 14px;
  color: var(--text-secondary);
}

@media (max-width: 600px) {
  h1 { font-size: 32px; }
  main { padding: 40px 18px 72px; }
  header.site-header { padding: 20px 18px; }
  nav.top-nav { gap: 16px; }
}