:root {
  color-scheme: light dark;
  --fg: #1d1d1f;
  --bg: #fafaf8;
  --muted: #6b6b70;
  --line: #dddddd;
  --accent: #5b3cc4;
  --danger: #b3261e;
  font-family: system-ui, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --fg: #ececec;
    --bg: #161618;
    --muted: #9a9aa0;
    --line: #333333;
    --accent: #a58cff;
    --danger: #ff8a80;
  }
}
body { margin: 0; background: var(--bg); color: var(--fg); line-height: 1.5; }
main { max-width: 720px; margin: 0 auto; padding: 32px 16px; }
main.narrow { max-width: 560px; }
a { color: var(--accent); }
.site-header { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; padding: 12px 16px; border-bottom: 1px solid var(--line); }
.site-header nav { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.site-header form { margin: 0; }
.brand { font-weight: 600; text-decoration: none; color: var(--fg); }
.button, button { display: inline-block; padding: 8px 16px; border-radius: 6px; border: 1px solid var(--accent); background: var(--accent); color: #fff; font: inherit; cursor: pointer; text-decoration: none; }
button.link { background: none; border: none; padding: 0; color: var(--accent); text-decoration: underline; }
button.danger { background: none; color: var(--danger); border-color: var(--danger); }
label { display: block; margin: 12px 0 4px; }
input { display: block; box-sizing: border-box; width: 100%; max-width: 360px; margin-top: 4px; padding: 8px; font: inherit; color: inherit; background: transparent; border: 1px solid var(--line); border-radius: 6px; }
.world-list { list-style: none; padding: 0; }
.world-list li { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--line); }
.world-list li button { margin-left: auto; }
.small { color: var(--muted); font-size: 0.9em; }
.error { color: var(--danger); }