:root {
  --bg: #f6f5f3;
  --ink: #1a1a1a;
  --muted: #5c5c5c;
  --faint: #8c8c8c;
  --line: #e4e1db;
  --card: #ffffff;
  --accent: #ff8830;
  --accent-dark: #c45e12;
  --max: 42rem;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.55;
}

a { color: var(--accent-dark); }

a:hover { color: var(--ink); }

.wrap {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
}

header {
  border-bottom: 1px solid var(--line);
  background: var(--card);
}

.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4rem;
}

.brand {
  color: var(--ink);
  font-weight: 760;
  letter-spacing: 0.08em;
  text-decoration: none;
  font-size: 0.95rem;
}

nav {
  display: flex;
  gap: 1rem;
  font-size: 0.95rem;
}

nav a {
  color: var(--muted);
  text-decoration: none;
}

nav a[aria-current="page"] {
  color: var(--ink);
  font-weight: 650;
}

main { padding: 2.5rem 0 4rem; }

h1 {
  font-size: 2rem;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin: 0 0 0.75rem;
}

h2 {
  font-size: 1.2rem;
  line-height: 1.3;
  margin: 2rem 0 0.5rem;
}

.lede {
  font-size: 1.1rem;
  color: var(--muted);
  margin: 0 0 1.5rem;
}

.meta {
  color: var(--faint);
  font-size: 0.9rem;
  margin: 0 0 1.5rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.1rem 1.15rem;
  margin: 0 0 0.75rem;
}

.card h2 {
  margin: 0 0 0.25rem;
  font-size: 1.05rem;
}

.card p { margin: 0; color: var(--muted); }

.card a { font-weight: 600; text-decoration: none; }

ul, ol { padding-left: 1.2rem; }

li { margin: 0.35rem 0; }

footer {
  border-top: 1px solid var(--line);
  color: var(--faint);
  font-size: 0.9rem;
  padding: 1.5rem 0 2.5rem;
}

footer p { margin: 0.25rem 0; }

.notice {
  background: #fff6ee;
  border: 1px solid #f3d2b8;
  border-radius: 12px;
  padding: 0.9rem 1rem;
  margin: 1.25rem 0;
}