:root {
  color-scheme: light dark;
  font-family: Arial, sans-serif;
  --page: #f8fafc;
  --text: #0f172a;
  --card: #fff;
  --border: #e2e8f0;
  --muted: #64748b;
  --button: #0f172a;
  --button-text: #fff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --page: #09090b;
    --text: #fafafa;
    --card: #18181b;
    --border: #27272a;
    --muted: #a1a1aa;
    --button: #fafafa;
    --button-text: #18181b;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--page); color: var(--text); }
main { max-width: 600px; margin: 48px auto; padding: 0 16px; }
h1 { margin: 0; }
p { color: var(--muted); }
section, li { padding: 16px; border: 1px solid var(--border); border-radius: 8px; background: var(--card); }
section { margin-top: 16px; }
label { display: block; margin-bottom: 8px; }
form { display: flex; flex-wrap: wrap; gap: 8px; }
input { min-width: 0; flex: 1; padding: 8px 12px; border: 1px solid var(--border); border-radius: 6px; background: var(--page); color: var(--text); font: inherit; }
button { padding: 8px 16px; border: 0; border-radius: 6px; background: var(--button); color: var(--button-text); font: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid #94a3b8; outline-offset: 2px; }
ul { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
li { overflow-wrap: anywhere; }