:root {
  color-scheme: dark;
  --bg: #0c0d10;
  --panel: #14161b;
  --line: #262a33;
  --text: #ecedf0;
  --muted: #9aa0ad;
  --accent: #ff3b30;
  --font: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', 'Segoe UI', Roboto, sans-serif;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.6 var(--font); -webkit-font-smoothing: antialiased; }
a { color: var(--text); text-decoration-color: var(--accent); text-underline-offset: 3px; }
a:hover { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.wrap { max-width: 680px; margin: 0 auto; padding: 0 16px; }
header { border-bottom: 1px solid var(--line); }
header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 650; letter-spacing: -0.01em; text-decoration: none; }
.brand:hover { color: var(--text); }
.mark { width: 12px; height: 20px; border-radius: 3px; background: var(--accent); }
nav { display: flex; gap: 20px; font-size: 15px; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover, nav a[aria-current] { color: var(--text); }
main { padding: 56px 0 72px; }
h1 { font-size: clamp(34px, 7vw, 52px); line-height: 1.08; letter-spacing: -0.03em; margin: 0 0 20px; }
h1 em { font-style: normal; color: var(--accent); }
h2 { font-size: 21px; letter-spacing: -0.01em; margin: 44px 0 10px; }
p, ul { margin: 0 0 14px; }
ul { padding-left: 22px; }
li { margin-bottom: 6px; }
.lede { font-size: 20px; color: var(--muted); max-width: 34em; }
.note { margin-top: 40px; padding: 18px 20px; border: 1px solid var(--line); border-radius: 10px; background: var(--panel); color: var(--muted); font-size: 15px; }
.meta { color: var(--muted); font-size: 15px; }
footer { border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
footer .wrap { padding-top: 24px; padding-bottom: 40px; display: flex; flex-wrap: wrap; gap: 8px 20px; }
footer a { color: var(--muted); }