:root {
  --bg: #fbfaf7;
  --fg: #1c1f24;
  --muted: #5d6470;
  --line: #e2ded5;
  --accent: #1d4ed8;
  --accent-fg: #fff;
  --ok: #15803d;
  --card: #fff;
  --err: #b91c1c;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #14161a; --fg: #e8e6e1; --muted: #a2a8b3; --line: #2c3038; --accent: #6b8ff5; --accent-fg: #0b0d10; --ok: #4ade80; --card: #1c1f24; --err: #f87171; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--accent); }
header.top { padding: 14px 16px; border-bottom: 1px solid var(--line); }
.brand { font-weight: 700; text-decoration: none; color: var(--fg); letter-spacing: .01em; }
main { max-width: 720px; margin: 0 auto; padding: 24px 16px 48px; }
footer { max-width: 720px; margin: 0 auto; padding: 24px 16px; color: var(--muted); font-size: 14px; border-top: 1px solid var(--line); }
h1 { font-size: 1.9rem; line-height: 1.2; margin: .2em 0; }
h2 { font-size: 1.3rem; margin-top: 2em; }
.sub, .muted, .crumb, .note { color: var(--muted); }
.crumb { font-size: 14px; margin: 0; }
.lead { font-size: 1.2rem; }
.lead.ok { color: var(--ok); }
.domain { font-family: ui-monospace, Consolas, monospace; word-break: break-all; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 18px; margin: 24px 0; }
fieldset { border: none; padding: 0; margin: 0 0 16px; }
legend { font-weight: 600; margin-bottom: 6px; }
label { display: block; margin: 8px 0; }
input[type=text], input:not([type]), input[type=email], input[type=tel] { display: block; width: 100%; padding: 10px; font: inherit; border: 1px solid var(--line); border-radius: 6px; background: var(--bg); color: var(--fg); }
label.check { display: flex; gap: 10px; align-items: flex-start; }
label.check input { margin-top: 5px; }
button { font: inherit; padding: 11px 18px; border-radius: 6px; border: none; background: var(--accent); color: var(--accent-fg); cursor: pointer; }
button.secondary { background: transparent; color: var(--accent); border: 1px solid var(--line); padding: 6px 12px; }
.hp { position: absolute; left: -9999px; }
.search { display: flex; gap: 8px; margin: 16px 0; }
.search input { flex: 1; }
ul.towns { list-style: none; padding: 0; columns: 2 260px; }
ul.towns li { padding: 3px 0; break-inside: avoid; }
.facts li { margin-bottom: 8px; }
.letter { background: var(--card); border: 1px solid var(--line); padding: 18px; border-radius: 8px; font-size: 15px; }
canvas#pad { width: 100%; max-width: 600px; height: 180px; border: 1px dashed var(--muted); border-radius: 6px; background: #fff; touch-action: none; }
.error { color: var(--err); font-weight: 600; }