:root {
  --bg: #f6f1e9;
  --surface: #fffcf7;
  --ink: #1f2328;
  --muted: #6e6760;
  --accent: #a0522a;
  --line: #e6ddd0;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a;
    --surface: #1d2025;
    --ink: #ede6db;
    --muted: #a39c92;
    --accent: #e39a63;
    --line: #2c3036;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.65 Literata, Georgia, "Times New Roman", serif;
  -webkit-text-size-adjust: 100%;
}

main {
  max-width: 680px;
  margin: 0 auto;
  padding: 40px 20px 80px;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 40px;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 15px;
}

.brand {
  color: var(--ink);
  font-weight: 700;
  font-size: 20px;
  text-decoration: none;
  letter-spacing: -0.01em;
}

.langs a { color: var(--muted); text-decoration: none; margin-left: 12px; }
.langs a[aria-current="true"] { color: var(--accent); font-weight: 600; }

h1 { font-size: 34px; line-height: 1.2; margin: 0 0 8px; letter-spacing: -0.01em; }
h2 { font-size: 21px; margin: 36px 0 8px; }
p, li { margin: 0 0 12px; }
ul { padding-left: 22px; }
a { color: var(--accent); }

.updated, footer {
  color: var(--muted);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 14px;
}

.lead { font-size: 20px; color: var(--muted); }

footer {
  margin-top: 56px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

footer a { color: var(--muted); margin-right: 16px; }

/* Duas línguas na mesma página. Sem JavaScript, as duas aparecem. */
html[data-lang="en"] [lang="pt"],
html[data-lang="pt"] [lang="en"] { display: none; }