:root {
  --bg: #ffffff;
  --fg: #1d2a24;
  --muted: #5b6b63;
  --border: #cfd8d3;
  --accent: #1f5c3f;
  --accent-fg: #ffffff;
  --ok-bg: #e6f4ec;
  --err-bg: #fbe9e7;
  --err-fg: #8a1c12;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111814;
    --fg: #e4ece7;
    --muted: #9aaba2;
    --border: #33423a;
    --accent: #5fbf8b;
    --accent-fg: #0b130f;
    --ok-bg: #16301f;
    --err-bg: #3a1714;
    --err-fg: #f3b3aa;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
main { max-width: 40rem; margin: 0 auto; padding: 2rem 1rem 4rem; }
h1 { margin: 0 0 .5rem; font-size: 1.6rem; }
a { color: var(--accent); }
.lede { margin-top: 0; }
.muted, .hint { color: var(--muted); }
.hint { font-size: .875rem; margin: .25rem 0 1rem; }
label { display: block; font-weight: 600; margin-top: 1rem; }
label.inline { display: inline-flex; gap: .35rem; align-items: center; font-weight: 400; margin: .25rem 1rem .25rem 0; }
input[type="text"], input:not([type]), select {
  width: 100%; margin-top: .35rem; padding: .55rem .65rem; font: inherit; color: var(--fg);
  background: var(--bg); border: 1px solid var(--border); border-radius: 6px;
}
fieldset { border: 1px solid var(--border); border-radius: 6px; margin: 1rem 0 0; padding: .5rem .9rem .25rem; }
legend { font-weight: 600; padding: 0 .3rem; }
button {
  margin-top: 1rem; padding: .6rem 1.1rem; font: inherit; font-weight: 600; cursor: pointer;
  color: var(--accent-fg); background: var(--accent); border: 0; border-radius: 6px;
}
button:disabled { opacity: .6; cursor: default; }
#result { margin-top: 1.25rem; padding: 0; border-radius: 6px; }
#result.ok, #result.error, #result.pending { padding: .75rem 1rem; }
#result.ok { background: var(--ok-bg); }
#result.error { background: var(--err-bg); color: var(--err-fg); }
#result.pending { border: 1px dashed var(--border); }
#result ul { margin: 0; padding-left: 1.2rem; }