:root {
  --bg: #fbfaf7;
  --fg: #222;
  --muted: #666;
  --line: #ccc;
  --accent: #b5532b;
  --bad: #b02a2a;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1b1a18;
    --fg: #eee;
    --muted: #aaa;
    --line: #4a4844;
    --accent: #e0865c;
    --bad: #f08080;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
}
main { max-width: 22rem; margin: 15vh auto 0; padding: 1rem; }
h1 { font-size: 1.5rem; margin: 0 0 1.25rem; }
label { display: block; margin-bottom: 1rem; color: var(--muted); }
input {
  display: block;
  width: 100%;
  margin-top: 0.25rem;
  padding: 0.6rem;
  font: inherit;
  color: var(--fg);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 6px;
}
button {
  width: 100%;
  font: inherit;
  padding: 0.65rem;
  border: 0;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}
a { color: var(--accent); }
.message { margin: 0 0 1rem; }
.message.bad { color: var(--bad); }