:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #18181b;
  background: #f4f4f5;
}

* { box-sizing: border-box; }
body { margin: 0; line-height: 1.65; }
a { color: #1d4ed8; }
.topbar {
  background: #27272a;
  color: #fff;
  border-bottom: 1px solid #09090b;
  box-shadow: 0 8px 24px rgba(24, 24, 27, 0.2);
}
.topbar-inner, main, footer { width: min(860px, calc(100% - 32px)); margin: 0 auto; }
.topbar-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { font-size: 20px; font-weight: 800; color: #fff; text-decoration: none; }
nav { display: flex; gap: 16px; }
nav a { color: #d4d4d8; font-size: 14px; font-weight: 650; text-decoration: none; }
main { background: #fff; margin-top: 28px; margin-bottom: 28px; padding: 32px; border: 1px solid #e4e4e7; box-shadow: 0 12px 30px rgba(24, 24, 27, 0.08); }
h1 { margin: 0 0 4px; font-size: clamp(28px, 6vw, 42px); line-height: 1.15; letter-spacing: 0; }
h2 { margin: 30px 0 8px; font-size: 19px; letter-spacing: 0; }
p, li { color: #3f3f46; }
.updated { margin-top: 0; color: #71717a; font-size: 13px; }
.notice { margin: 22px 0; border-left: 4px solid #ca8a04; background: #fefce8; padding: 12px 14px; }
footer { padding: 0 0 36px; color: #71717a; font-size: 13px; }
@media (max-width: 600px) {
  .topbar-inner { align-items: flex-start; flex-direction: column; justify-content: center; padding: 14px 0; }
  main { margin-top: 16px; padding: 22px 18px; }
}