:root {
  color-scheme: light dark;
  --bg: #f6f4ef;
  --fg: #1d1b18;
  --muted: #6b665d;
  --line: #d9d3c7;
  --ok: #1f7a3d;
  --bad: #b3261e;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161513;
    --fg: #ece8df;
    --muted: #a39d92;
    --line: #34312c;
    --ok: #6cc98a;
    --bad: #f08a80;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.5 system-ui, sans-serif;
}
main { max-width: 640px; margin: 0 auto; padding: 24px 16px 48px; }
h1 { font-size: 22px; margin: 0 0 4px; }
h2 { font-size: 15px; margin: 24px 0 8px; color: var(--muted); }
.lead { color: var(--muted); margin: 0 0 20px; }
dl { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; margin: 0; }
dt { color: var(--muted); }
dd { margin: 0; overflow-wrap: anywhere; }
ul, ol { margin: 0; padding-left: 18px; }
.state.ok { color: var(--ok); font-weight: 600; }
.state.bad { color: var(--bad); font-weight: 600; }
form { display: flex; gap: 8px; margin-top: 20px; }
input { flex: 1; min-width: 0; padding: 8px 10px; border: 1px solid var(--line); border-radius: 6px; background: transparent; color: inherit; font: inherit; }
button { padding: 8px 14px; border: 1px solid var(--line); border-radius: 6px; background: var(--fg); color: var(--bg); font: inherit; cursor: pointer; }
#log { font: 12px/1.5 ui-monospace, monospace; color: var(--muted); }