:root {
  color-scheme: light dark;
  --bg: #f6f3ec;
  --panel: #fffdf8;
  --text: #24211c;
  --muted: #6f685c;
  --line: #ddd5c6;
  --accent: #1f5f5b;
  --accent-text: #ffffff;
  --danger: #a33a2c;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #191816;
    --panel: #23211e;
    --text: #efe9dd;
    --muted: #a79f90;
    --line: #3b372f;
    --accent: #7cc4bb;
    --accent-text: #10211f;
    --danger: #ec8d7d;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
}

main { max-width: 620px; margin: 0 auto; padding: 32px 16px 64px; }
h1 { margin: 0 0 12px; font-size: 26px; line-height: 1.3; }
h2 { margin: 36px 0 12px; font-size: 19px; }
p { margin: 0 0 12px; }

.intro { margin-bottom: 24px; color: var(--muted); }
.field { margin-bottom: 12px; padding: 16px; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; }
.important { border-color: var(--accent); border-width: 2px; }
.question { margin-bottom: 8px; font-weight: 600; }
.required { color: var(--muted); font-size: 13px; font-weight: 400; }
.hint { margin-bottom: 8px; color: var(--muted); font-size: 14px; }
.muted { color: var(--muted); font-size: 14px; }
.status { min-height: 1.6em; margin-top: 12px; color: var(--danger); }
.options { display: grid; gap: 2px; }
.choice { display: flex; gap: 10px; align-items: flex-start; padding: 6px 0; cursor: pointer; }
.choice input { flex: none; width: 18px; height: 18px; margin: 4px 0 0; accent-color: var(--accent); }

input[type="text"], input[type="password"], input[type="date"], textarea {
  width: 100%;
  padding: 10px 12px;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 6px;
  font: inherit;
  font-size: 16px;
}

textarea { resize: vertical; }

button[type="submit"], main > button[type="button"]:not(.link) {
  width: 100%;
  margin-top: 8px;
  padding: 12px;
  color: var(--accent-text);
  background: var(--accent);
  border: 0;
  border-radius: 6px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

button:disabled { opacity: .6; }
button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
a, .link { padding: 0; color: var(--accent); background: none; border: 0; font: inherit; text-decoration: underline; cursor: pointer; }
.danger { color: var(--danger); }
.toolbar { display: flex; gap: 20px; margin: 12px 0 20px; }
.trap { position: absolute; left: -9999px; }

.cards { display: grid; gap: 10px; }
.card {
  display: grid;
  gap: 2px;
  width: 100%;
  padding: 14px 16px;
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.answers { margin: 16px 0; }
.answers dt { margin-top: 14px; color: var(--muted); font-size: 14px; }
.answers dd { margin: 2px 0 0; white-space: pre-wrap; overflow-wrap: anywhere; }
.note { margin-bottom: 10px; padding: 14px 16px; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; white-space: pre-wrap; overflow-wrap: anywhere; }
.note p:last-child { margin-bottom: 0; }
.note-head { display: flex; justify-content: space-between; margin-bottom: 6px; }