:root {
  --bg: #f6f5f2;
  --surface: #ffffff;
  --text: #1d2125;
  --muted: #5d656d;
  --line: #e2e0da;
  --accent: #2f5d62;
  --accent-soft: #e3eeee;
  --display: "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --body: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --radius: 10px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111416;
    --surface: #181c1f;
    --text: #e8e6e1;
    --muted: #9aa3aa;
    --line: #2a3034;
    --accent: #7fb3b8;
    --accent-soft: #1d2a2c;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 var(--body);
}
a { color: var(--accent); text-underline-offset: 3px; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
.wrap { max-width: 880px; margin: 0 auto; padding: 0 16px; }
header.topo { border-bottom: 1px solid var(--line); }
header.topo .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 16px; flex-wrap: wrap; }
.marca { font: 600 20px/1 var(--display); letter-spacing: .01em; color: var(--text); text-decoration: none; }
.marca span { color: var(--accent); }
nav.menu { display: flex; gap: 18px; flex-wrap: wrap; font-size: 14px; }
nav.menu a { color: var(--muted); text-decoration: none; transition: color .15s; }
nav.menu a:hover, nav.menu a[aria-current="page"] { color: var(--text); }
main { padding: 48px 0 64px; }
h1 { font: 600 34px/1.2 var(--display); margin: 0 0 12px; }
.lead { font-size: 18px; color: var(--muted); max-width: 640px; margin: 0 0 40px; }
h2 { font: 600 19px/1.35 var(--body); margin: 36px 0 10px; }
.grade { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin: 8px 0 8px; }
.bloco { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.bloco h3 { margin: 0 0 6px; font-size: 15px; }
.bloco p { margin: 0; color: var(--muted); font-size: 15px; }
dl.ficha { display: grid; grid-template-columns: minmax(140px, max-content) 1fr; gap: 10px 24px; margin: 0; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
dl.ficha dt { color: var(--muted); font-size: 14px; }
dl.ficha dd { margin: 0; font-variant-numeric: tabular-nums; }
.num { font-family: var(--mono); font-size: 15px; }
.data { color: var(--muted); font-size: 14px; margin: -4px 0 32px; }
.texto { max-width: 720px; }
.texto ul { padding-left: 20px; }
footer.rodape { border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
footer.rodape .wrap { padding: 24px 16px; display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; }
@media (max-width: 560px) {
  h1 { font-size: 28px; }
  dl.ficha { grid-template-columns: 1fr; gap: 2px; }
  dl.ficha dd { margin-bottom: 10px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }