:root {
  color-scheme: light dark;
  --primary: #1f4a3b;
  --bg: #f5f1e8;
  --surface: #ffffff;
  --border: #e2dccf;
  --text: #1c211f;
  --text-2: #4b524e;
  --error: #b3261e;
}
@media (prefers-color-scheme: dark) {
  :root {
    --primary: #9cc3ae;
    --bg: #111816;
    --surface: #1a2420;
    --border: #33403a;
    --text: #eef1ec;
    --text-2: #b5beb8;
    --error: #f2b8b5;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main {
  max-width: 40rem;
  margin: 0 auto;
  padding: 2.5rem 1rem 4rem;
}
header img { display: block; height: 40px; width: auto; }
.card {
  margin-top: 2rem;
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
}
h1 { font-size: 1.75rem; line-height: 1.25; margin: 0 0 .75rem; }
h2 { font-size: 1.125rem; margin: 1.5rem 0 .375rem; }
p, li { color: var(--text-2); }
p { margin: 0 0 .75rem; }
ul, ol { margin: 0; padding-left: 1.25rem; }
a { color: var(--primary); font-weight: 600; }
footer { margin-top: 2rem; font-size: .875rem; color: var(--text-2); }
footer a { margin-right: 1rem; }
.notice { font-size: .875rem; }