* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary: #4472c4;
  --primary-dark: #2f4f8f;
  --bg: #f2f4f8;
  --card: #ffffff;
  --text: #1f2430;
  --muted: #6b7280;
  --border: #dfe3ea;
  --success: #1a9e5c;
  --warn: #c77700;
  --danger: #d9534f;
}

body {
  font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.hidden {
  display: none !important;
}

.app-header {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
  padding: 22px 16px;
  text-align: center;
}

.app-header h1 {
  font-size: 1.5rem;
  letter-spacing: 0.5px;
}

.tagline {
  font-size: 0.9rem;
  opacity: 0.9;
  margin-top: 4px;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.card h2 {
  font-size: 1.05rem;
  margin-bottom: 12px;
}

.drop-zone {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 28px 16px;
  border: 2px dashed var(--border);
  border-radius: 10px;
  background: #fafbfd;
  transition: border-color 0.15s, background 0.15s;
}

.drop-zone.drag-over {
  border-color: var(--primary);
  background: #eef3fb;
}

.hint {
  font-size: 0.82rem;
  color: var(--muted);
  text-align: center;
}

.btn {
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  border-radius: 8px;
  padding: 9px 16px;
  font-size: 0.9rem;
  cursor: pointer;
  transition: filter 0.15s, background 0.15s;
}

.btn:hover {
  background: #f2f4f8;
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-dark);
}

.btn-export {
  background: var(--success);
  border-color: var(--success);
  color: #fff;
}

.btn-export:hover {
  background: #147a49;
}

.btn-danger {
  background: transparent;
  border-color: var(--danger);
  color: var(--danger);
  padding: 4px 10px;
  font-size: 0.8rem;
}

.btn-ghost {
  border: none;
  background: transparent;
  font-size: 1.2rem;
  line-height: 1;
  padding: 4px 8px;
}

.btn-row {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  align-items: start;
}

@media (max-width: 720px) {
  .split {
    grid-template-columns: 1fr;
  }
}

.image-pane img {
  width: 100%;
  max-height: 420px;
  object-fit: contain;
  border-radius: 8px;
  background: #111;
}

.status {
  font-size: 0.9rem;
  border-radius: 8px;
  padding: 10px 12px;
  background: #eef1f6;
  margin-bottom: 10px;
}

.status.success {
  background: #e4f6ec;
  color: var(--success);
}

.status.warn {
  background: #fdf0dc;
  color: var(--warn);
}

.status.error {
  background: #fde8e7;
  color: var(--danger);
}

.candidates {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.9rem;
  font-family: Consolas, "Courier New", monospace;
  cursor: pointer;
}

.chip.active {
  border-color: var(--primary);
  background: var(--primary);
  color: #fff;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.form-grid label {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: 0.85rem;
  color: var(--muted);
}

.form-grid input {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 10px;
  font-size: 0.95rem;
  color: var(--text);
  background: #fff;
}

.form-grid input:focus {
  outline: 2px solid var(--primary);
  border-color: transparent;
}

.form-grid input[readonly] {
  background: #f2f4f8;
}

.list-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.badge {
  background: var(--primary);
  color: #fff;
  border-radius: 999px;
  padding: 2px 10px;
  font-size: 0.8rem;
  vertical-align: middle;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

th,
td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

th {
  background: #f6f8fb;
  color: var(--muted);
  font-weight: 600;
}

.thumb {
  width: 52px;
  height: 52px;
  object-fit: cover;
  border-radius: 6px;
  display: block;
}

td.seq {
  text-align: center;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.grand-total {
  text-align: right;
  margin-top: 12px;
  font-size: 0.95rem;
}

.grand-total strong {
  color: var(--primary-dark);
  font-size: 1.1rem;
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(15, 20, 30, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 100;
}

.modal-box {
  background: #fff;
  border-radius: 12px;
  max-width: 960px;
  width: 100%;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.canvas-wrap {
  display: flex;
  justify-content: center;
  background: #1a1f2b;
  border-radius: 8px;
  padding: 8px;
  overflow: auto;
  max-height: 65vh;
}

#crop-canvas {
  cursor: crosshair;
  touch-action: none;
  max-width: 100%;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.scan-scroll {
  overflow-x: auto;
}

.scan-grid {
  display: grid;
  grid-template-columns: 64px 1.3fr 1fr 0.6fr 0.8fr auto auto;
  gap: 8px;
  align-items: center;
  min-width: 780px;
}

.scan-grid-header {
  font-size: 0.82rem;
  color: var(--muted);
  font-weight: 600;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}

.scan-item {
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}

.scan-item input {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 9px;
  font-size: 0.9rem;
  width: 100%;
  min-width: 0;
  color: var(--text);
  background: #fff;
}

.scan-item input:focus {
  outline: 2px solid var(--primary);
  border-color: transparent;
}

.scan-item input.error {
  border-color: var(--danger);
  outline: 1px solid var(--danger);
  background: #fdf3f2;
}

.scan-total {
  text-align: right;
  font-weight: 600;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}