:root {
  color-scheme: light dark;
  --bg: #fff9f2;
  --surface: rgba(255, 255, 255, 0.82);
  --text: #2c241f;
  --muted: #6f625a;
  --accent: #ef7b45;
  --line: rgba(80, 58, 43, 0.14);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171310;
    --surface: rgba(38, 31, 27, 0.88);
    --text: #fff4e8;
    --muted: #cdbdb0;
    --line: rgba(255, 236, 218, 0.14);
  }
}

* { box-sizing: border-box; }
html { font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", sans-serif; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 90% 0%, rgba(239, 123, 69, 0.16), transparent 36rem),
    var(--bg);
  color: var(--text);
  line-height: 1.7;
}
a { color: var(--accent); text-underline-offset: 0.18em; }
header, main, footer { width: min(760px, calc(100% - 40px)); margin-inline: auto; }
header { padding: 48px 0 20px; }
nav { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 18px; }
main { padding-bottom: 40px; }
footer { border-top: 1px solid var(--line); padding: 24px 0 44px; color: var(--muted); font-size: 0.92rem; }
h1 { margin: 0; font-size: clamp(2rem, 8vw, 3.4rem); line-height: 1.12; letter-spacing: -0.04em; }
h2 { margin-top: 2.2rem; line-height: 1.25; }
p, li { max-width: 68ch; }
.eyebrow { color: var(--accent); font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
.lead { color: var(--muted); font-size: 1.16rem; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 20px; padding: 22px; margin: 18px 0; backdrop-filter: blur(18px); }
.button { display: inline-block; padding: 10px 16px; border-radius: 999px; color: white; background: var(--accent); text-decoration: none; font-weight: 700; }
.language { margin-left: auto; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.92em; }
@media (max-width: 560px) { .language { width: 100%; margin-left: 0; } }