:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --text: #1d2330;
  --muted: #667085;
  --accent: #f38020;
  --border: #e4e7ec;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1218;
    --card: #181c25;
    --text: #e6e8ec;
    --muted: #98a2b3;
    --border: #2a3040;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 32px 16px; }
h1 { margin: 0; }
h2 { margin-top: 0; font-size: 1.1rem; }
.lead, .hint { color: var(--muted); margin-top: 4px; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-top: 20px;
}
.grid { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; margin: 0; }
.grid dt { color: var(--muted); }
.grid dd { margin: 0; font-variant-numeric: tabular-nums; }
.big { font-size: 2.5rem; font-weight: 700; margin: 0; color: var(--accent); }
form { display: grid; gap: 8px; }
input, textarea, button {
  font: inherit;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
}
button { background: var(--accent); color: #fff; border: none; cursor: pointer; font-weight: 600; }
button:disabled { opacity: 0.6; }
.error { color: #d92d20; margin: 0; }
#entries { list-style: none; padding: 0; margin: 16px 0 0; }
#entries li { border-top: 1px solid var(--border); padding: 12px 0; }
#entries .meta { color: var(--muted); font-size: 0.85rem; }