/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #4ccbe1;
  --primary-dark: #1a6c7a;
  --primary-light: #e6f7fa;
  --success: #22c55e;
  --danger: #ef4444;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-700: #334155;
  --gray-900: #0f172a;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 4px 12px rgba(0,0,0,.04);
  --shadow-lg: 0 4px 24px rgba(0,0,0,.10);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans TC", sans-serif;
  background: linear-gradient(135deg, #e6f7fa 0%, #f3f9fb 50%, #e8f5e9 100%);
  min-height: 100vh;
  color: var(--gray-900);
  line-height: 1.6;
  padding: 20px 16px 40px;
}

/* ===== Container ===== */
.form-container {
  max-width: 720px;
  margin: 0 auto;
  background: #fff;
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  padding: 32px 28px;
}

.form-header { text-align: center; margin-bottom: 24px; }
.form-header h1 { font-size: 1.75rem; color: var(--gray-900); }
.form-header .subtitle { color: var(--gray-500); font-size: 0.9rem; margin-top: 4px; }

/* ===== Progress Bar ===== */
.progress-bar { margin-bottom: 32px; }
.progress-steps {
  display: flex;
  justify-content: space-between;
  position: relative;
  margin-bottom: 8px;
}
.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  z-index: 1;
}
.step span {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--gray-200);
  color: var(--gray-500);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.85rem;
  transition: all .3s;
}
.step.active span, .step.done span { background: var(--primary); color: #fff; }
.step.done span { background: var(--success); }
.step label { font-size: 0.75rem; color: var(--gray-400); }
.step.active label { color: var(--primary); font-weight: 600; }

.progress-fill {
  height: 4px;
  background: var(--gray-200);
  border-radius: 2px;
  margin-top: -46px;
  margin-bottom: 56px;
  position: relative;
  z-index: 0;
}
.progress-fill-inner {
  height: 100%;
  background: var(--primary);
  border-radius: 2px;
  transition: width .4s ease;
  width: 0%;
}

/* ===== Form Steps ===== */
.form-step { display: none; animation: fadeIn .3s ease; }
.form-step.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.form-step h2 { font-size: 1.3rem; margin-bottom: 4px; color: var(--gray-900); }
.step-desc { color: var(--gray-500); font-size: 0.9rem; margin-bottom: 20px; }
.section-title { font-size: 1rem; color: var(--gray-700); margin: 24px 0 12px; padding-top: 16px; border-top: 1px solid var(--gray-200); }

/* ===== Mode Toggle ===== */
.mode-toggle {
  display: flex;
  background: var(--gray-100);
  border-radius: 10px;
  padding: 4px;
  margin-bottom: 24px;
}
.mode-btn {
  flex: 1;
  padding: 10px 16px;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  background: transparent;
  color: var(--gray-500);
  transition: all .2s;
}
.mode-btn.active {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 1px 4px rgba(0,0,0,.08);
}
.mode-btn:hover:not(.active) { color: var(--gray-700); }

.btn-full { width: 100%; }

/* ===== Fields ===== */
.field-group { margin-bottom: 18px; }
.field-group > label { display: block; font-weight: 600; font-size: 0.9rem; margin-bottom: 6px; color: var(--gray-700); }
.required { color: var(--danger); }
.sub-label { font-size: 0.8rem !important; font-weight: 500 !important; color: var(--gray-500) !important; }
.input-with-select { display: flex; gap: 8px; }
.input-with-select select { width: 140px; flex-shrink: 0; }
.input-with-select input { flex: 1; }
.field-hint { font-size: 0.8rem; color: var(--gray-400); margin-top: 2px; margin-bottom: 2px; display: block; }

input[type="text"],
input[type="tel"],
input[type="email"],
input[type="number"],
input[type="date"],
input[type="time"],
select,
textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--gray-300);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  transition: border-color .2s, box-shadow .2s;
  background: #fff;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(14,165,233,.15);
}
input.invalid, select.invalid { border-color: var(--danger); }

.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field-row-3 { grid-template-columns: 1fr 1fr 1fr; }

.input-with-btn { display: flex; gap: 8px; }
.input-with-btn input { flex: 1; }
.btn-lookup {
  padding: 10px 20px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background .2s;
}
.btn-lookup:hover { background: var(--primary-dark); }
.btn-lookup:disabled { background: var(--gray-300); cursor: not-allowed; }

.lookup-status { margin-top: 8px; font-size: 0.85rem; min-height: 20px; }
.lookup-status.found { color: var(--success); }
.lookup-status.not-found { color: var(--gray-500); }
.lookup-status.no-history { color: #f59e0b; }

/* ===== Activity Cards (checkbox) ===== */
.activity-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 8px;
}
.activity-card { cursor: pointer; }
.activity-card input { display: none; }
.card-content {
  text-align: center;
  padding: 16px 8px;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius);
  transition: all .2s;
}
.card-content:hover { border-color: var(--primary-light); background: var(--gray-50); }
.activity-card input:checked + .card-content {
  border-color: var(--primary);
  background: var(--primary-light);
  box-shadow: 0 0 0 2px rgba(14,165,233,.2);
}
.card-icon { font-size: 2rem; margin-bottom: 4px; color: var(--gray-500); }
.activity-card input:checked + .card-content .card-icon { color: var(--primary-dark); }
.card-content { position: relative; }
.order-hint {
  background: var(--primary-light);
  border-left: 3px solid var(--primary);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.88rem;
  color: var(--primary-dark);
  margin-bottom: 8px;
}
.order-badge {
  position: absolute;
  top: 4px;
  right: 4px;
  background: var(--primary);
  color: #fff;
  font-size: 0.65rem;
  padding: 2px 6px;
  border-radius: 8px;
  line-height: 1.3;
}
.card-label { font-size: 0.85rem; font-weight: 600; color: var(--gray-700); }

/* ===== Sub Panels ===== */
.sub-panel {
  margin-top: 12px;
  padding: 16px;
  background: var(--primary-light);
  border-radius: 10px;
  border-left: 3px solid var(--primary);
  animation: fadeIn .25s ease;
}
.sub-panel-header {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 10px;
  color: var(--gray-700);
}
.sub-panel select { margin-top: 4px; }
.sub-field { margin-bottom: 12px; }
.sub-field:last-child { margin-bottom: 0; }
.sub-field > label { display: block; font-weight: 600; font-size: 0.85rem; margin-bottom: 6px; color: var(--gray-700); }

/* ===== Conditional Sections ===== */
.conditional-section { animation: fadeIn .25s ease; }

/* ===== Checkboxes & Radios ===== */
.checkbox-group { display: flex; flex-direction: column; gap: 8px; }
.checkbox-item, .radio-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 400;
  font-size: 0.95rem;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: 8px;
  transition: background .15s;
}
.checkbox-item:hover, .radio-item:hover { background: var(--gray-50); }
.radio-group-inline { display: flex; flex-wrap: wrap; gap: 4px; }
.info-note { background: var(--gray-50); border-radius: 8px; font-size: 0.85rem; color: var(--gray-700); }
.agreement { font-size: 0.85rem; color: var(--gray-700); line-height: 1.5; background: var(--gray-50); padding: 12px 16px; border-radius: 8px; }

/* ===== Navigation ===== */
.form-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--gray-200);
}
.btn {
  padding: 12px 32px;
  border: none;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .2s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); }
.btn-secondary { background: var(--gray-100); color: var(--gray-700); }
.btn-secondary:hover { background: var(--gray-200); }
.btn-submit { background: var(--success); color: #fff; }
.btn-submit:hover { background: #16a34a; transform: translateY(-1px); }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }

/* ===== Summary ===== */
.summary-card {
  background: var(--gray-50);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}
.summary-card h3 { font-size: 0.95rem; color: var(--gray-500); margin-bottom: 8px; }
.summary-row { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px solid var(--gray-200); font-size: 0.9rem; }
.summary-row:last-child { border-bottom: none; }
.summary-label { color: var(--gray-500); }
.summary-value { font-weight: 600; color: var(--gray-900); text-align: right; max-width: 60%; }

/* ===== Policies ===== */
.policies { margin-bottom: 20px; }
.policies details {
  background: var(--gray-50);
  border-radius: 8px;
  margin-bottom: 8px;
}
.policies summary {
  padding: 12px 16px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  color: var(--gray-700);
}
.policies details[open] summary { border-bottom: 1px solid var(--gray-200); }
.policies ul, .policies p { padding: 12px 16px 12px 32px; font-size: 0.85rem; color: var(--gray-500); }
.policies li { margin-bottom: 4px; }

/* ===== Success ===== */
.success-message { text-align: center; padding: 48px 20px; }
.success-icon {
  width: 72px; height: 72px;
  background: var(--success); color: #fff;
  border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 2rem; margin-bottom: 16px;
}
.success-message h2 { margin-bottom: 8px; }
.success-message p { color: var(--gray-500); margin-bottom: 24px; }

/* ===== Hidden ===== */
/* Policy content */
.policy-content { font-size: 0.82rem; line-height: 1.8; color: var(--gray-700); padding: 12px 4px; }
.policy-content p { margin: 14px 0 6px; }
.policy-content ul { padding-left: 20px; margin: 6px 0 12px; }
.policy-content li { margin-bottom: 6px; }
.policy-table { width: 100%; border-collapse: collapse; font-size: 0.82rem; margin: 12px 0; border-radius: 8px; overflow: hidden; border: 1px solid var(--gray-200); }
.policy-table th { background: var(--gray-50); padding: 10px 14px; text-align: left; font-size: 0.8rem; font-weight: 600; border-bottom: 2px solid var(--gray-200); }
.policy-table td { padding: 10px 14px; border-bottom: 1px solid var(--gray-100); }
.policy-table td:last-child { text-align: right; color: var(--gray-700); }
.policy-table tr:last-child td { border-bottom: none; }

.hidden { display: none !important; }

/* ===== Language Row ===== */
.lang-row {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}
.lang-row label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-500);
  white-space: nowrap;
}
.lang-row select {
  width: auto;
  min-width: 100px;
  padding: 6px 12px;
  font-size: 0.9rem;
}

/* ===== Order Type Toggle ===== */
.order-type-toggle {
  display: flex;
  background: var(--gray-100);
  border-radius: 10px;
  padding: 4px;
  margin-bottom: 20px;
}
.order-type-btn {
  flex: 1;
  padding: 10px 16px;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  background: transparent;
  color: var(--gray-500);
  transition: all .2s;
}
.order-type-btn.active {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 1px 4px rgba(0,0,0,.08);
}
.order-type-btn:hover:not(.active) { color: var(--gray-700); }

/* ===== Order Confirm ===== */
.order-confirm-box {
  background: var(--gray-50);
  border: 1.5px solid var(--primary);
  border-radius: 10px;
  padding: 14px 18px;
}
.order-confirm-box p {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 10px;
  color: var(--gray-700);
}

/* ===== Order Status ===== */
.order-status {
  margin-top: 8px;
  font-size: 0.85rem;
  min-height: 20px;
  line-height: 1.5;
}
.order-status.found {
  color: var(--success);
  background: rgba(34,197,94,.08);
  padding: 10px 14px;
  border-radius: 8px;
  border-left: 3px solid var(--success);
}
.order-status.not-found {
  color: var(--danger);
}

/* ===== Age Display ===== */
.age-display {
  display: inline-block !important;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 6px;
  margin-top: 6px;
}
.age-display.ok { color: var(--success); background: rgba(34,197,94,.1); }
.age-display.caution { color: #f59e0b; background: rgba(245,158,11,.1); }

/* ===== Edit Changed Highlight ===== */
.summary-value.changed {
  color: var(--danger);
  font-weight: 700;
}
.summary-value.changed::after {
  content: ' (已修改)';
  font-size: 0.75rem;
  font-weight: 400;
}

/* ===== Admin Login ===== */
.admin-trigger {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: var(--gray-200);
  color: var(--gray-400);
  font-size: 1.2rem;
  cursor: pointer;
  opacity: 0.4;
  transition: opacity .2s;
  z-index: 50;
}
.admin-trigger:hover { opacity: 1; }

.admin-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}
.admin-modal {
  background: #fff;
  border-radius: 16px;
  padding: 32px 28px;
  width: 340px;
  box-shadow: 0 8px 32px rgba(0,0,0,.15);
}
.admin-modal h3 {
  font-size: 1.15rem;
  margin-bottom: 20px;
  text-align: center;
  color: var(--gray-900);
}
.admin-field { margin-bottom: 14px; }
.admin-field input {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--gray-300);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
}
.admin-field input:focus { outline: none; border-color: var(--primary); }
.admin-error {
  color: var(--danger);
  font-size: 0.85rem;
  text-align: center;
  margin-bottom: 12px;
}
.admin-actions {
  display: flex;
  gap: 10px;
  margin-top: 8px;
}
.admin-actions .btn { flex: 1; padding: 10px; }

/* ===== Responsive ===== */
@media (max-width: 600px) {
  .form-container { padding: 20px 16px; border-radius: 16px; }
  .form-header h1 { font-size: 1.4rem; }
  .activity-cards { grid-template-columns: repeat(2, 1fr); }
  .field-row, .field-row-3 { grid-template-columns: 1fr; }
  .radio-group-inline { flex-direction: column; }
  .btn { padding: 12px 20px; font-size: 0.95rem; }
  .step label { font-size: 0.65rem; }
}