:root {
  --brand: #0f5c9c;
  --brand-dark: #0a3d69;
  --bg: #f4f6f8;
  --card: #ffffff;
  --border: #d9dee3;
  --text: #1d2733;
  --muted: #66727f;
  --danger: #c0392b;
  --success: #1e8449;
  --warning: #b9770e;
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Segoe UI', 'Microsoft JhengHei', 'PingFang TC', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

a {
  color: var(--brand);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

.topbar {
  background: var(--brand);
  color: #fff;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.topbar h1 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
}
.topbar .subtitle {
  font-size: 13px;
  opacity: 0.85;
}
.topbar nav a {
  color: #fff;
  margin-left: 18px;
  font-size: 14px;
  opacity: 0.9;
}
.topbar nav a:hover {
  opacity: 1;
  text-decoration: underline;
}

.container {
  max-width: 920px;
  margin: 0 auto;
  padding: 24px 16px 60px;
}
.container.wide {
  max-width: 1200px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
}
.card h2 {
  margin-top: 0;
  font-size: 17px;
  color: var(--brand-dark);
  border-bottom: 1px solid var(--border);
  padding-bottom: 10px;
}
.card h3 {
  margin: 18px 0 8px;
  font-size: 15px;
}

label {
  display: block;
  margin: 14px 0 4px;
  font-weight: 600;
  font-size: 14px;
}
label .optional {
  font-weight: 400;
  color: var(--muted);
  font-size: 12px;
}
input[type='text'],
input[type='password'],
input[type='date'],
input[type='number'],
input[type='email'],
select,
textarea {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  background: #fff;
}
input:focus,
select:focus,
textarea:focus {
  outline: 2px solid rgba(15, 92, 156, 0.35);
  border-color: var(--brand);
}
textarea {
  resize: vertical;
  min-height: 60px;
}
.hint {
  font-size: 12px;
  color: var(--muted);
  margin-top: 4px;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 20px;
}
.form-grid .full {
  grid-column: 1 / -1;
}
@media (max-width: 640px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
}

.btn {
  display: inline-block;
  padding: 10px 20px;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  background: var(--brand);
  color: #fff;
}
.btn:hover {
  background: var(--brand-dark);
}
.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
.btn.secondary {
  background: #e8edf2;
  color: var(--text);
}
.btn.secondary:hover {
  background: #d8e0e8;
}
.btn.danger {
  background: var(--danger);
}
.btn.ghost {
  background: transparent;
  color: var(--brand);
  border: 1px solid var(--brand);
}
.btn.ghost:hover {
  background: rgba(15, 92, 156, 0.08);
}
.btn-row {
  margin-top: 22px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.alert {
  padding: 12px 16px;
  border-radius: 6px;
  margin: 14px 0;
  font-size: 14px;
}
.alert.error {
  background: #fdecea;
  border: 1px solid #f5c6c2;
  color: var(--danger);
}
.alert.success {
  background: #eafaf1;
  border: 1px solid #a9dfbf;
  color: var(--success);
}
.alert.info {
  background: #eaf2fb;
  border: 1px solid #a9c7e8;
  color: var(--brand-dark);
}
.alert.warning {
  background: #fef9e7;
  border: 1px solid #f9e79f;
  color: var(--warning);
}
.alert ul {
  margin: 6px 0 0;
  padding-left: 18px;
}

.result-box {
  background: #f0f7f0;
  border: 1px solid #bfe0bf;
  border-radius: 8px;
  padding: 20px;
  margin: 16px 0;
}
.result-box .app-no {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--brand-dark);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}
th,
td {
  border: 1px solid var(--border);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
}
th {
  background: #eef2f6;
  font-weight: 600;
}
tr:nth-child(even) td {
  background: #fafbfc;
}

.dl {
  display: grid;
  grid-template-columns: 220px 1fr;
  row-gap: 8px;
  font-size: 14px;
}
.dl dt {
  color: var(--muted);
  font-weight: 600;
}
@media (max-width: 640px) {
  .dl {
    grid-template-columns: 1fr;
  }
}

.status-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}
.status-badge.received {
  background: #eaf2fb;
  color: var(--brand-dark);
}
.status-badge.locked {
  background: #fdecea;
  color: var(--danger);
}
.status-badge.exported {
  background: #fef9e7;
  color: var(--warning);
}

.pagination {
  margin-top: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
}
.pagination button {
  padding: 6px 14px;
}
.file-drop {
  border: 2px dashed var(--border);
  border-radius: 8px;
  padding: 30px;
  text-align: center;
  color: var(--muted);
  cursor: pointer;
  transition: border-color 0.2s;
}
.file-drop:hover,
.file-drop.dragover {
  border-color: var(--brand);
  background: #f6faff;
}

.empty {
  color: var(--muted);
  text-align: center;
  padding: 30px;
}

.loading {
  color: var(--muted);
  padding: 12px 0;
  font-size: 14px;
}

pre.json {
  background: #f5f7f9;
  border-radius: 6px;
  padding: 12px;
  overflow: auto;
  font-size: 12px;
}

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 20px 0;
}

.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 2px solid var(--border);
  margin-bottom: 20px;
}
.tabs button {
  background: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
}
.tabs button.active {
  color: var(--brand);
  border-bottom-color: var(--brand);
}

.toolbar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: end;
  margin-bottom: 16px;
}
.toolbar .field {
  flex: 1;
  min-width: 140px;
}
.toolbar .field label {
  margin: 0 0 4px;
}