:root {
  --bg: #f4f5f7;
  --surface: #ffffff;
  --border: #dcdfe4;
  --text: #1f2328;
  --muted: #6b7280;
  --accent: #2563eb;
  --accent-dark: #1d4ed8;
  --danger: #c0392b;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC",
    "PingFang TC", "Microsoft JhengHei", sans-serif;
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
}

.page {
  max-width: 680px;
  margin: 0 auto;
  padding: 32px 16px 80px;
}

.page__header { margin-bottom: 24px; }

.page__header h1 {
  font-size: 1.6rem;
  margin: 0 0 8px;
}

.page__intro {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}

.card__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.card__title {
  font-size: 1.1rem;
  margin: 0 0 16px;
}

.card__head .card__title { margin-bottom: 12px; }

.card__hint {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 0.85rem;
}

.card--notice { border-color: #f0c987; background: #fffdf6; }

.field { margin-bottom: 18px; }
.field:last-child { margin-bottom: 0; }

.field label {
  display: block;
  font-weight: 600;
  font-size: 0.92rem;
  margin-bottom: 6px;
}

.req { color: var(--danger); font-weight: 400; }

input[type="text"],
input[type="tel"],
input[type="email"],
input[type="date"],
input[type="number"] {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
  background: #fff;
  color: inherit;
}

input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}

input[aria-invalid="true"] { border-color: var(--danger); }

.money { display: flex; align-items: center; gap: 8px; }
.money__unit { color: var(--muted); font-weight: 600; }

.radios { display: flex; gap: 20px; flex-wrap: wrap; }

.check {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 400;
  cursor: pointer;
}

.check input { width: 18px; height: 18px; accent-color: var(--accent); margin: 0; }

.error {
  color: var(--danger);
  font-size: 0.82rem;
  margin: 6px 0 0;
  min-height: 0;
}
.error:empty { display: none; }

.loan {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin: 0 0 16px;
  background: #fafbfc;
}

.loan__legend {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  padding: 0;
  margin-bottom: 12px;
}

.loan__title { font-weight: 700; font-size: 1rem; }

.loan__remove {
  border: none;
  background: none;
  color: var(--danger);
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
  padding: 2px 4px;
}
.loan__remove:hover { text-decoration: underline; }
.loan:only-of-type .loan__remove { display: none; }

.btn {
  font: inherit;
  font-weight: 600;
  border-radius: 8px;
  padding: 12px 20px;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn--primary {
  background: var(--accent);
  color: #fff;
  width: 100%;
}
.btn--primary:hover:not(:disabled) { background: var(--accent-dark); }
.btn--primary:disabled { opacity: 0.6; cursor: progress; }

.btn--ghost {
  background: #fff;
  border-color: var(--border);
  color: var(--text);
  width: 100%;
}
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }

.notice { margin-bottom: 20px; }
.notice:last-child { margin-bottom: 0; }
.notice__text { margin: 0 0 8px; font-weight: 600; }

.submit-bar { margin-top: 8px; }

.status {
  margin: 12px 0 0;
  text-align: center;
  font-size: 0.9rem;
  color: var(--muted);
}
.status[data-tone="error"] { color: var(--danger); }

.card--done { text-align: center; }
.card--done h2 { margin-top: 0; }