:root {
  color-scheme: light dark;
  --ink: #16161a;
  --paper: #ffffff;
  --muted: #5c5c66;
  --line: #d9d9e0;
  --accent: #16161a;
  --on-accent: #ffffff;
  --danger: #b3261e;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #f2f2f5;
    --paper: #0f0f12;
    --muted: #a3a3ad;
    --line: #34343c;
    --accent: #f2f2f5;
    --on-accent: #0f0f12;
    --danger: #ff8a80;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 17px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 420px; margin: 0 auto; padding: 48px 16px 64px; }
h1 { font-size: 28px; margin: 0 0 8px; }
h2 { font-size: 19px; margin: 32px 0 8px; }
.lead, .or, dt { color: var(--muted); }
.or { text-align: center; margin: 16px 0; }
button, input {
  display: block;
  width: 100%;
  min-height: 48px;
  margin: 8px 0;
  padding: 12px 16px;
  border-radius: 12px;
  font: inherit;
}
button {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
}
button.primary { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
button.danger { background: var(--danger); color: #ffffff; border-color: var(--danger); }
button.danger-quiet { color: var(--danger); }
button:disabled { opacity: 0.5; cursor: default; }
button:focus-visible, input:focus-visible, a:focus-visible { outline: 3px solid var(--muted); outline-offset: 2px; }
input { border: 1px solid var(--line); background: transparent; color: var(--ink); }
label { display: block; margin-top: 8px; }
dl { margin: 0; }
dd { margin: 0 0 12px; }
.status { margin-top: 16px; }
a { color: var(--ink); }
[hidden] { display: none !important; }