:root {
  color-scheme: dark;
  --bg: #0d0f0d;
  --panel: #171b18;
  --line: #303830;
  --text: #f5f7f2;
  --muted: #abb5aa;
  --accent: #d7ff22;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); line-height: 1.65; }
a { color: var(--accent); text-underline-offset: .18em; }
a:hover { color: #efffa1; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 3px; }
.shell { width: min(100% - 40px, 1080px); margin-inline: auto; }
.site-header { border-bottom: 1px solid var(--line); background: rgba(13, 15, 13, .95); }
.header-inner { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--text); text-decoration: none; font-weight: 800; font-size: 1.08rem; letter-spacing: -.02em; }
.brand-mark { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 9px; background: var(--accent); color: #10150b; font-weight: 900; }
.site-nav { display: flex; align-items: center; gap: clamp(12px, 3vw, 28px); font-size: .9rem; }
.site-nav a { color: var(--muted); text-decoration: none; }
.site-nav a[aria-current="page"], .site-nav a:hover { color: var(--accent); }
.hero { padding: clamp(58px, 8vw, 108px) 0 clamp(42px, 6vw, 76px); }
.eyebrow { color: var(--accent); font-size: .76rem; font-weight: 800; letter-spacing: .15em; text-transform: uppercase; }
h1 { font-size: clamp(2.65rem, 6vw, 5.2rem); line-height: 1.02; letter-spacing: -.065em; margin: 15px 0 22px; max-width: 880px; }
.hero p { color: var(--muted); font-size: clamp(1.03rem, 1.9vw, 1.25rem); max-width: 720px; }
.updated { color: var(--muted); font-size: .85rem; margin-top: 28px; }
.cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; padding-bottom: 88px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 22px; padding: 30px; text-decoration: none; color: var(--text); transition: border-color .18s, transform .18s; }
.card:hover { border-color: var(--accent); transform: translateY(-3px); color: var(--text); }
.card .number { color: var(--accent); font-size: .8rem; font-weight: 800; letter-spacing: .12em; }
.card h2 { font-size: 1.45rem; letter-spacing: -.035em; margin: 18px 0 6px; }
.card p { color: var(--muted); margin: 0; }
.card .arrow { display: inline-block; margin-top: 26px; color: var(--accent); font-size: 1.35rem; }
.document-layout { display: grid; grid-template-columns: 205px minmax(0, 1fr); align-items: start; gap: clamp(36px, 6vw, 90px); padding-bottom: 100px; }
.toc { position: sticky; top: 28px; font-size: .84rem; border-left: 1px solid var(--line); padding-left: 18px; }
.toc strong { color: var(--accent); display: block; margin-bottom: 12px; font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; }
.toc a { color: var(--muted); display: block; text-decoration: none; padding: 5px 0; }
.toc a:hover { color: var(--accent); }
.document section { padding: 0 0 30px; margin-bottom: 30px; border-bottom: 1px solid var(--line); scroll-margin-top: 24px; }
.document h2 { font-size: clamp(1.35rem, 2.5vw, 1.75rem); line-height: 1.25; letter-spacing: -.04em; margin: 0 0 14px; }
.document h3 { font-size: 1.05rem; margin: 25px 0 8px; }
.document p, .document li { color: #cbd3ca; }
.document p { margin: 0 0 15px; }
.document ul { padding-left: 22px; margin: 0 0 18px; }
.document li { margin: 0 0 7px; }
.callout { background: #1d2519; border: 1px solid #536129; border-radius: 16px; padding: 20px 22px; margin: 22px 0 32px; }
.callout strong { color: var(--accent); }
.callout p { margin: 6px 0 0; }
.site-footer { border-top: 1px solid var(--line); color: var(--muted); padding: 26px 0 40px; font-size: .83rem; }
.footer-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px 24px; }
.footer-inner nav { display: flex; gap: 18px; }
@media (max-width: 720px) {
  .header-inner { min-height: 68px; }
  .site-nav { gap: 13px; }
  .site-nav a { font-size: .8rem; }
  .cards { grid-template-columns: 1fr; }
  .document-layout { display: block; }
  .toc { position: static; border-left: 0; border-bottom: 1px solid var(--line); padding: 0 0 20px; margin-bottom: 34px; }
  .toc a { display: inline-block; margin-right: 15px; }
}