:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --text: #1d2330;
  --muted: #5b6475;
  --line: #dde1e7;
  --accent: #1f5fa8;
  --accent-text: #ffffff;
  --ok-bg: #e7f5ec; --ok-text: #1b5e34;
  --err-bg: #fbeaea; --err-text: #8a1f1f;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171c;
    --card: #1d2128;
    --text: #e6e8ec;
    --muted: #a0a8b5;
    --line: #333944;
    --accent: #6ea8ec;
    --accent-text: #0e1420;
    --ok-bg: #173323; --ok-text: #9fe0b5;
    --err-bg: #3a1c1c; --err-text: #f2b0b0;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }
a { color: var(--accent); }
.site-head { border-bottom: 1px solid var(--line); background: var(--card); }
.site-head .wrap { padding-top: 14px; padding-bottom: 14px; }
.brand { font-weight: 700; font-size: 1.15rem; letter-spacing: .01em; }
main.wrap { padding-top: 28px; padding-bottom: 28px; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 22px 24px;
  margin-bottom: 20px;
}
h1, .h1 { font-size: 1.6rem; line-height: 1.25; margin: 0 0 4px; }
h2 { font-size: 1.1rem; margin: 22px 0 4px; }
.card > .h1 { margin-bottom: 14px; }
.sub, .hint { color: var(--muted); }
.sub { margin-top: 0; }
p { margin: 0 0 10px; }
.legal h2 { font-size: 1.15rem; margin-top: 28px; }
.legal h3 { font-size: 1rem; margin: 16px 0 4px; }
.legal ul { padding-left: 1.3em; margin: 0 0 10px; }
.field { margin-bottom: 14px; }
label { display: block; font-weight: 600; margin-bottom: 4px; }
input[type=text], input[type=email], textarea {
  width: 100%;
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 9px 11px;
}
input:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
textarea { resize: vertical; min-height: 140px; }
button {
  font: inherit;
  font-weight: 600;
  background: var(--accent);
  color: var(--accent-text);
  border: 0;
  border-radius: 6px;
  padding: 10px 20px;
  cursor: pointer;
}
button[disabled] { opacity: .6; cursor: wait; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.status { border-radius: 6px; padding: 10px 14px; margin-bottom: 14px; }
.status.ok { background: var(--ok-bg); color: var(--ok-text); }
.status.err { background: var(--err-bg); color: var(--err-text); }
.site-foot { border-top: 1px solid var(--line); color: var(--muted); font-size: .95rem; }
.site-foot .wrap { display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; padding-top: 16px; padding-bottom: 24px; }
.site-foot nav a { margin-left: 16px; }
.site-foot nav a:first-child { margin-left: 0; }
@media (max-width: 520px) {
  body { font-size: 16px; }
  .card { padding: 18px 16px; }
}