:root {
  --bg: #F0E0D3;
  --card: #F4EDE4;
  --line: #E2D2C4;
  --text: #1C1B1F;
  --muted: #49454F;
  --brick: #C1440E;
  --brick-deep: #8C2F08;
  --mortar: #F4EDE4;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1A1512;
    --card: #241E1A;
    --line: #3E3530;
    --text: #F4EDE4;
    --muted: #B8AB9E;
    --brick: #F08A3C;
    --brick-deep: #FFB27A;
    --mortar: #241E1A;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: var(--brick-deep); text-underline-offset: 2px; }
a:hover { color: var(--brick); }

.wrap { max-width: 720px; margin: 0 auto; padding: 0 20px; }

header.top { padding: 22px 0; }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; color: var(--text); text-decoration: none; }
.brand svg { width: 30px; height: 30px; }
nav a { margin-left: 18px; font-size: 15px; color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--text); }

.hero { padding-top: 48px; padding-bottom: 32px; }
.hero h1 { font-size: clamp(34px, 7vw, 52px); line-height: 1.1; margin: 0 0 16px; letter-spacing: -0.02em; }
.hero p { font-size: 19px; color: var(--muted); margin: 0; max-width: 34em; }
.badge { display: inline-block; margin-top: 24px; padding: 8px 14px; border-radius: 999px; background: var(--card); border: 1px solid var(--line); font-size: 15px; color: var(--muted); }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; padding-top: 16px; padding-bottom: 40px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px 18px 16px; }
.card h2 { font-size: 17px; margin: 0 0 6px; }
.card p { margin: 0; font-size: 15px; color: var(--muted); }

.doc { padding-top: 24px; padding-bottom: 48px; }
.doc h1 { font-size: 34px; line-height: 1.2; margin: 8px 0 4px; }
.doc .meta { color: var(--muted); font-size: 15px; margin: 0 0 28px; }
.doc h2 { font-size: 22px; margin: 40px 0 8px; padding-top: 8px; border-top: 1px solid var(--line); }
.doc h3 { font-size: 18px; margin: 24px 0 6px; }
.doc ul { padding-left: 22px; }
.doc li { margin: 4px 0; }
.summary { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 6px 20px; }
.doc table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 12px 0; }
.doc th, .doc td { text-align: left; vertical-align: top; padding: 10px 10px 10px 0; border-bottom: 1px solid var(--line); }
.doc th { font-weight: 600; }
.table-scroll { overflow-x: auto; }

footer { border-top: 1px solid var(--line); padding: 22px 0 36px; font-size: 14px; color: var(--muted); }
footer a { color: var(--muted); margin-right: 16px; }

@media (max-width: 480px) {
  body { font-size: 16px; }
  nav a { margin-left: 12px; }
  .doc table, .doc thead, .doc tbody, .doc tr, .doc th, .doc td { display: block; }
  .doc thead { display: none; }
  .doc tr { border-bottom: 1px solid var(--line); padding: 8px 0; }
  .doc td { border: 0; padding: 2px 0; }
  .doc td:first-child { font-weight: 600; }
}