:root {
  --bg: #faf7f2;
  --surface: #ffffff;
  --ink: #1f1b16;
  --muted: #6b6259;
  --line: #e7e0d6;
  --accent: #8a3b2e;
  --accent-ink: #ffffff;
  --note: #f3ede3;
  --max: 720px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #15130f;
    --surface: #1d1a15;
    --ink: #eee8de;
    --muted: #a59b8e;
    --line: #2f2a23;
    --accent: #d9826f;
    --accent-ink: #15130f;
    --note: #221e18;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 18px/1.65 Georgia, "Times New Roman", serif;
}
a { color: var(--accent); }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 16px; }

.disclosure-bar {
  background: var(--note);
  border-bottom: 1px solid var(--line);
  font: 14px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--muted);
  padding: 10px 0;
}
.disclosure-bar p { margin: 0; }

header.site {
  border-bottom: 1px solid var(--line);
  padding: 18px 0;
}
header.site .wrap { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; flex-wrap: wrap; }
.brand { font-weight: 700; font-size: 22px; color: var(--ink); text-decoration: none; letter-spacing: -0.01em; }
.brand span { color: var(--accent); }
nav.site { font: 15px system-ui, -apple-system, "Segoe UI", sans-serif; display: flex; gap: 18px; flex-wrap: wrap; }
nav.site a { color: var(--muted); text-decoration: none; }
nav.site a:hover { color: var(--ink); }

main { padding: 40px 0 56px; }
h1 { font-size: 36px; line-height: 1.2; margin: 0 0 12px; letter-spacing: -0.015em; }
h2 { font-size: 25px; line-height: 1.3; margin: 40px 0 10px; }
h3 { font-size: 20px; margin: 28px 0 6px; }
.meta { font: 14px system-ui, -apple-system, "Segoe UI", sans-serif; color: var(--muted); margin: 0 0 28px; }
.lede { font-size: 20px; color: var(--ink); }
ul, ol { padding-left: 22px; }
li { margin: 6px 0; }

.box {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 20px 22px;
  margin: 28px 0;
}
.box h2, .box h3 { margin-top: 0; }
.box.note { background: var(--note); }

.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 600px) { .cols { grid-template-columns: 1fr; } h1 { font-size: 30px; } }

.cta-wrap { text-align: center; margin: 32px 0; }
.cta {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-ink);
  font: 600 18px system-ui, -apple-system, "Segoe UI", sans-serif;
  text-decoration: none;
  padding: 16px 28px;
  border-radius: 8px;
}
.cta:hover { filter: brightness(1.08); }
.cta-note { font: 13px system-ui, -apple-system, "Segoe UI", sans-serif; color: var(--muted); margin-top: 10px; }

.card { display: block; text-decoration: none; color: inherit; }
.card:hover h2 { color: var(--accent); }
.card h2 { margin-top: 0; }

details { border-top: 1px solid var(--line); padding: 12px 0; }
details:last-of-type { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; font-weight: 700; }

footer.site {
  border-top: 1px solid var(--line);
  padding: 28px 0 40px;
  font: 14px/1.6 system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--muted);
}
footer.site a { color: var(--muted); }
footer.site nav { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 10px; }