:root {
  --bg: #fbfaf7;
  --fg: #1d1d1f;
  --muted: #5f6368;
  --line: #e3e0d8;
  --accent: #1f5f7a;
  --card: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141516;
    --fg: #e8e6e1;
    --muted: #a3a6ab;
    --line: #2c2e31;
    --accent: #7fb8d4;
    --card: #1b1c1e;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.6 Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, serif;
}
main, header, footer { max-width: 44rem; margin: 0 auto; padding: 0 1rem; }
header { padding-top: 3.5rem; }
h1 { font-size: 1.9rem; line-height: 1.25; margin: 0 0 .4rem; font-weight: 600; }
h2 { font-size: 1.15rem; margin: 2.4rem 0 .6rem; font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
     letter-spacing: .02em; text-transform: uppercase; color: var(--muted); font-weight: 600; }
p { margin: 0 0 1rem; }
a { color: var(--accent); text-underline-offset: 2px; }
.lead { color: var(--muted); font-size: 1.05rem; }
.note { border-left: 3px solid var(--accent); padding: .6rem 0 .6rem 1rem; margin: 1.4rem 0; background: var(--card); }
.files { list-style: none; padding: 0; margin: 0; }
.files li { padding: .7rem 0; border-bottom: 1px solid var(--line); }
.files .meta { display: block; color: var(--muted); font-size: .85rem; font-family: ui-monospace, Menlo, Consolas, monospace;
               overflow-wrap: anywhere; }
pre.summary { white-space: pre-wrap; font: .92rem/1.55 ui-monospace, Menlo, Consolas, monospace; background: var(--card);
              border: 1px solid var(--line); padding: 1rem; overflow-wrap: anywhere; }
footer { margin-top: 4rem; padding-bottom: 3rem; border-top: 1px solid var(--line); padding-top: 1rem;
         color: var(--muted); font-size: .9rem; font-family: system-ui, -apple-system, "Segoe UI", sans-serif; }
footer a { color: var(--muted); }