:root {
  color-scheme: light dark;
  --bg: #fbfaf7; --fg: #1d1c1a; --muted: #5e5a53; --line: #dcd8d0;
  --panel: #f2efe8; --accent: #2a5d8f; --accent-fg: #ffffff; --warn: #8a3b12; --ok: #2f6b3a;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161514; --fg: #ece9e3; --muted: #a8a299; --line: #3a3733;
    --panel: #201f1d; --accent: #8cb8e6; --accent-fg: #10161d; --warn: #f0a77f; --ok: #8fd19e;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--accent); }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 3px solid var(--accent); outline-offset: 2px; }
header.site, footer.site, main { max-width: 52rem; margin: 0 auto; padding: 1rem 1.25rem; }
header.site { display: flex; flex-wrap: wrap; gap: 1rem; align-items: baseline; justify-content: space-between;
  border-bottom: 1px solid var(--line); }
header.site nav { display: flex; flex-wrap: wrap; gap: 1rem; align-items: baseline; }
.brand { font-weight: 700; text-decoration: none; color: var(--fg); }
footer.site { color: var(--muted); font-size: 0.9rem; border-top: 1px solid var(--line); margin-top: 2rem; }
h1 { font-size: 1.6rem; line-height: 1.25; margin: 1rem 0 0.5rem; }
h2 { font-size: 1.2rem; margin: 2rem 0 0.5rem; }
h3 { font-size: 1.05rem; margin: 1.25rem 0 0.25rem; }
.muted { color: var(--muted); }
.warn { color: var(--warn); }
.ok { color: var(--ok); }
ul.plain { list-style: none; padding: 0; margin: 0; }
ul.cards > li { border: 1px solid var(--line); border-radius: 6px; padding: 0.75rem 1rem; margin: 0.75rem 0; background: var(--panel); }
ul.cards h2, ul.cards h3 { margin: 0 0 0.25rem; }
table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
th, td { text-align: left; padding: 0.4rem 0.5rem; border-bottom: 1px solid var(--line); vertical-align: top; }
pre, code { font-family: ui-monospace, "SFMono-Regular", Menlo, monospace; font-size: 0.9rem; }
pre { background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 0.75rem; overflow-x: auto; white-space: pre-wrap; word-break: break-all; }
form { margin: 0.75rem 0; }
form.inline { display: inline; margin: 0; }
label { display: block; font-weight: 600; margin: 0.75rem 0 0.25rem; }
input[type=text], input[type=search], input[type=url], textarea, select {
  width: 100%; padding: 0.45rem 0.55rem; font: inherit; color: var(--fg); background: var(--bg);
  border: 1px solid var(--line); border-radius: 4px; }
textarea { min-height: 5rem; }
button { font: inherit; padding: 0.4rem 0.9rem; border-radius: 4px; border: 1px solid var(--accent);
  background: var(--accent); color: var(--accent-fg); cursor: pointer; }
button.secondary { background: transparent; color: var(--accent); }
button.link { background: none; border: none; padding: 0; color: var(--accent); text-decoration: underline; }
.row { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: end; }
.row > * { flex: 1 1 12rem; }
.row > button { flex: 0 0 auto; }
.badge { display: inline-block; font-size: 0.8rem; padding: 0.05rem 0.45rem; border: 1px solid var(--line); border-radius: 999px; }
.notice { border-left: 4px solid var(--accent); padding: 0.5rem 0.75rem; background: var(--panel); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }