:root {
  --bg: #fbfbfa;
  --fg: #1d1d1b;
  --muted: #5f5f5a;
  --rule: #e3e2de;
  --accent: #2d5b8a;
  --code-bg: #f0efeb;
  --warn-bg: #fff4e0;
  --warn-fg: #6b4300;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161615;
    --fg: #ebeae6;
    --muted: #a3a29c;
    --rule: #2e2e2b;
    --accent: #8db8e3;
    --code-bg: #232321;
    --warn-bg: #3a2c12;
    --warn-fg: #f3d394;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
main { max-width: 42rem; margin: 0 auto; padding: 3rem 16px 4rem; }
header.site { border-bottom: 1px solid var(--rule); padding-bottom: 1rem; margin-bottom: 2rem; }
header.site a { color: var(--fg); text-decoration: none; font-weight: 600; letter-spacing: .01em; }
h1 { font-size: 1.6rem; line-height: 1.25; margin: 0 0 .5rem; }
h2 { font-size: 1.1rem; margin: 2rem 0 .5rem; }
p, li { color: var(--fg); }
.muted { color: var(--muted); font-size: .9rem; }
a { color: var(--accent); }
ul { padding-left: 1.2rem; }
code, .code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .85rem;
  background: var(--code-bg);
  border-radius: 4px;
}
code { padding: .1rem .3rem; }
.code { display: block; padding: .75rem; overflow-x: auto; white-space: pre-wrap; word-break: break-all; }
.warn { background: var(--warn-bg); color: var(--warn-fg); padding: .75rem 1rem; border-radius: 6px; }
button {
  font: inherit; font-size: .9rem; padding: .4rem .9rem; margin-top: .5rem;
  border: 1px solid var(--rule); border-radius: 6px; background: var(--code-bg); color: var(--fg); cursor: pointer;
}
footer { margin-top: 3rem; padding-top: 1rem; border-top: 1px solid var(--rule); }
footer a { margin-right: 1rem; }