:root {
  --ink: #1c1420;
  --ink-soft: #5a5260;
  --paper: #fdfbf7;
  --paper-raised: #ffffff;
  --line: #e8e2d8;
  --amber: #ff6b35;
  --coral: #ff3d68;
  --gradient: linear-gradient(120deg, var(--amber), var(--coral));
  --header-bg: #17121c;
  --header-ink: #f4f0ea;
  --measure: 680px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ── Header ─────────────────────────────────────────────────────────── */

.hero {
  background: var(--header-bg);
  border-bottom: 4px solid;
  border-image: var(--gradient) 1;
  padding: 28px 24px;
}

.hero-inner {
  max-width: var(--measure);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.wordmark {
  font-family: 'Fraunces', serif;
  font-weight: 700;
  font-size: 22px;
  color: var(--header-ink);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.wordmark span {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: #b8b0be;
}

.chip {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.14);
  color: var(--header-ink);
  padding: 5px 12px;
  border-radius: 100px;
  font-weight: 500;
  font-size: 12px;
}

.updated strong {
  color: var(--header-ink);
  font-weight: 600;
}

/* ── Main content ───────────────────────────────────────────────────── */

main {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 48px 24px 80px;
}

.lede {
  font-size: 18px;
  line-height: 1.65;
  color: var(--ink);
  margin: 0 0 18px;
}

.lede:first-of-type { margin-top: 0; }

/* ── Table of contents — real navigation, not decoration ───────────── */

.toc {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 24px 28px;
  margin: 32px 0 48px;
}

.toc-label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--amber);
  margin-bottom: 14px;
}

.toc ol {
  list-style: none;
  margin: 0;
  padding: 0;
  columns: 1;
}

@media (min-width: 560px) {
  .toc ol { columns: 2; column-gap: 24px; }
}

.toc li { break-inside: avoid; margin-bottom: 10px; }

.toc a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
}

.toc a:hover { color: var(--coral); }

.toc .num {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  color: var(--amber);
  font-size: 13px;
  flex-shrink: 0;
}

/* ── Sections ───────────────────────────────────────────────────────── */

section {
  margin-bottom: 44px;
  scroll-margin-top: 24px;
}

h2 {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 26px;
  letter-spacing: -0.01em;
  margin: 0 0 16px;
  display: flex;
  align-items: baseline;
  gap: 12px;
}

h2 .num {
  font-size: 15px;
  font-weight: 700;
  color: var(--amber);
  background: rgba(255,107,53,0.1);
  padding: 3px 9px;
  border-radius: 7px;
}

h3 {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 15px;
  margin: 24px 0 10px;
  color: var(--ink);
}

p { margin: 0 0 14px; color: var(--ink); }

ul {
  margin: 0 0 14px;
  padding-left: 22px;
}

li {
  margin-bottom: 8px;
  color: var(--ink);
}

li ul { margin-top: 8px; }

strong { font-weight: 600; }

a {
  color: var(--coral);
  text-decoration-thickness: 1.5px;
  text-underline-offset: 2px;
}

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

/* ── Footer ─────────────────────────────────────────────────────────── */

footer {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 32px 24px 56px;
  border-top: 1px solid var(--line);
  display: flex;
  gap: 10px;
  align-items: center;
  font-size: 13px;
  color: var(--ink-soft);
}

footer a {
  color: var(--ink-soft);
  font-weight: 500;
}

footer a:hover { color: var(--coral); }

@media (max-width: 520px) {
  .hero { padding: 22px 18px; }
  main { padding: 36px 18px 60px; }
  h2 { font-size: 22px; }
  .lede { font-size: 16.5px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}