:root {
  --bg: #fff;
  --fg: #1a1a1a;
  --border: #eee;
  --muted: #666;
  --link: #0645ad;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16181c;
    --fg: #e8e8e8;
    --border: #2c2f36;
    --muted: #999;
    --link: #6cb2ff;
  }
}

* { box-sizing: border-box; }
body { font-family: system-ui, sans-serif; max-width: 640px; margin: 2rem auto; padding: 0 1rem; background: var(--bg); color: var(--fg); }
h1 { font-size: 1.6rem; overflow-wrap: anywhere; }
.searchbar { display: flex; gap: 0.5rem; }
input { flex: 1; min-width: 0; padding: 0.5rem; font-size: 1rem; box-sizing: border-box; background: var(--bg); color: var(--fg); border: 1px solid var(--border); }
button { padding: 0.5rem 1rem; font-size: 1rem; cursor: pointer; border: 1px solid var(--border); background: var(--bg); color: var(--fg); white-space: nowrap; }
a { color: var(--link); }
a.back { display: inline-block; margin-bottom: 1rem; }
.hint { color: var(--muted); min-height: 1.2em; margin: 0.5rem 0; }
.addrnote { color: var(--muted); font-size: 0.9em; }
.footer { color: var(--muted); font-size: 0.85em; margin-top: 2rem; }
ul { list-style: none; padding: 0; }
li { padding: 0.4rem 0; border-bottom: 1px solid var(--border); overflow-wrap: anywhere; }
#sentinel { height: 1px; }
dl { display: grid; grid-template-columns: max-content 1fr; gap: 0.25rem 1rem; }
dt { font-weight: 600; }
dd { margin: 0; overflow-wrap: anywhere; }

@media (max-width: 480px) {
  body { margin: 1rem auto; padding: 0 0.75rem; }
  h1 { font-size: 1.3rem; }
  dl { grid-template-columns: 1fr; gap: 0.1rem 0; }
  dt { margin-top: 0.6rem; }
  dt:first-child { margin-top: 0; }
}