:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --text: #1c1f24;
  --muted: #5f6672;
  --line: #d9dde3;
  --accent: #1f6feb;
  --accent-text: #ffffff;
  --chip-on: #e7f0ff;
  --danger: #c62828;
  --ok: #1a7f37;
  color-scheme: light;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
}

main { max-width: 560px; margin: 0 auto; padding: 16px; }
main.wide { max-width: 1200px; }

h1 { font-size: 1.35rem; margin: 8px 0 16px; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
}

.field { margin-bottom: 18px; border: 0; padding: 0; min-width: 0; }
.field > label, .field > legend { display: block; font-weight: 600; margin-bottom: 6px; padding: 0; }

select, input[type="text"] {
  width: 100%;
  font: inherit;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
}

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  cursor: pointer;
  user-select: none;
}
.chips input { width: 18px; height: 18px; margin: 0; accent-color: var(--accent); }
.chips label:has(input:checked) { border-color: var(--accent); background: var(--chip-on); font-weight: 600; }

.hint { color: var(--muted); font-size: 0.9rem; margin-top: 4px; min-height: 1.35em; }
.error { color: var(--danger); font-size: 0.9rem; margin-top: 4px; }
.error:empty { display: none; }

button {
  font: inherit;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  padding: 10px 16px;
  cursor: pointer;
}
button.primary {
  width: 100%;
  min-height: 52px;
  border: 0;
  background: var(--accent);
  color: var(--accent-text);
  font-weight: 700;
  font-size: 1.05rem;
}
button:disabled { opacity: 0.55; cursor: default; }
button.danger { color: var(--danger); border-color: #f0c4c4; }

.banner { padding: 12px; border-radius: 8px; margin-bottom: 16px; }
.banner.bad { background: #fdecec; color: var(--danger); }
.banner:empty { display: none; }

.done h2 { color: var(--ok); margin: 0 0 4px; font-size: 1.3rem; }
.done .number { font-size: 1.1rem; margin-bottom: 12px; }
.done dl { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; margin: 0 0 16px; }
.done dt { color: var(--muted); }
.done dd { margin: 0; font-weight: 600; word-break: break-word; }

#turnstile { margin: 8px 0 16px; min-height: 65px; }

.toolbar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 12px; }
.toolbar .count { color: var(--muted); margin-right: auto; }
.toolbar button.export { background: var(--ok); color: #fff; border: 0; font-weight: 600; }

.table-wrap { overflow-x: auto; background: var(--card); border: 1px solid var(--line); border-radius: 12px; }
table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
th, td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
th { background: #fafbfc; font-weight: 600; }
td.num { text-align: right; font-variant-numeric: tabular-nums; }
tbody tr:last-child td { border-bottom: 0; }
.empty { padding: 24px; text-align: center; color: var(--muted); }

[hidden] { display: none !important; }