* { box-sizing: border-box; }

:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --border: #dde1e6;
  --text: #1c2128;
  --text-muted: #6b7280;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --danger: #dc2626;
  --success: #16a34a;
  --radius: 8px;
}

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 16px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.topbar h1 {
  font-size: 20px;
  margin: 0;
}

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

.topbar-actions input,
.topbar-actions select {
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
}

#search { min-width: 260px; }

main { padding: 24px; }

.product-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.product-table th,
.product-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

.product-table th {
  background: #fafbfc;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.product-table tbody tr:hover { background: #f9fafb; cursor: pointer; }

.row-thumb {
  width: 40px;
  height: 40px;
  object-fit: cover;
  border-radius: 6px;
  background: #f0f1f3;
  display: block;
}

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

.badge-yes { background: #dcfce7; color: #15803d; }
.badge-no { background: #fee2e2; color: #b91c1c; }

.empty-state {
  text-align: center;
  color: var(--text-muted);
  padding: 40px;
}

.btn {
  padding: 8px 14px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}

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

.btn-secondary { background: #fff; border-color: var(--border); color: var(--text); }
.btn-secondary:hover { background: #f3f4f6; }

.btn-small { padding: 6px 10px; font-size: 13px; }

.btn-danger { background: #fff; border-color: var(--danger); color: var(--danger); }
.btn-danger:hover { background: #fef2f2; }

.btn-icon {
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 16px;
  padding: 4px 6px;
  border-radius: 6px;
  color: var(--text-muted);
}
.btn-icon:hover { background: #f0f1f3; color: var(--text); }

dialog#product-dialog {
  width: min(720px, 92vw);
  max-height: 88vh;
  padding: 0;
  border: none;
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

dialog#product-dialog::backdrop {
  background: rgba(15, 20, 30, 0.5);
}

.dialog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.dialog-header h2 { margin: 0; font-size: 18px; }

.dialog-body {
  padding: 20px;
  overflow-y: auto;
  max-height: calc(88vh - 130px);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 24px;
}

.field { display: flex; flex-direction: column; gap: 4px; }
.field label { font-size: 13px; font-weight: 600; color: var(--text-muted); }
.field input[type=text],
.field input[type=number],
.field input[type=url] {
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  width: 100%;
}

.field-image { grid-column: span 2; flex-direction: row; align-items: center; gap: 14px; }
.field-image label { min-width: 40px; }

.field-description { grid-column: span 2; }
.field-description textarea {
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  resize: vertical;
}

.image-preview-wrap {
  width: 72px;
  height: 72px;
  border-radius: 8px;
  background: #f0f1f3;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex-shrink: 0;
}

.image-preview { width: 100%; height: 100%; object-fit: cover; }
.image-placeholder { font-size: 11px; color: var(--text-muted); text-align: center; padding: 4px; }

.field-toggle { flex-direction: row; align-items: center; }
.field-toggle label { display: flex; align-items: center; gap: 6px; font-size: 14px; color: var(--text); }

.barcode-input-row { display: flex; gap: 6px; }
.barcode-input-row input { flex: 1; }
.barcode-input-row .btn { flex-shrink: 0; white-space: nowrap; }

dialog.scanner-overlay {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  margin: 0;
  padding: 0;
  border: none;
  background: #000;
}

dialog.scanner-overlay[open] {
  display: flex;
  flex-direction: column;
}

.scanner-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  color: #fff;
  font-size: 15px;
  font-weight: 600;
}

.scanner-header .btn-icon { color: #fff; font-size: 20px; }
.scanner-header .btn-icon:hover { background: rgba(255,255,255,0.15); }

#scanner-viewport {
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

#scanner-viewport video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.scanner-status {
  color: #fff;
  text-align: center;
  padding: 16px;
  margin: 0;
  font-size: 14px;
  background: rgba(0,0,0,0.4);
}

.offers-section { border-top: 1px solid var(--border); padding-top: 16px; }
.offers-header { display: flex; align-items: center; justify-content: space-between; }
.offers-header h3 { margin: 0; font-size: 15px; }
.hint { font-size: 12px; color: var(--text-muted); margin: 6px 0 12px; }

.offer-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 10px;
  position: relative;
}

.offer-row-main { display: flex; gap: 10px; flex: 1; min-width: 0; }

.offer-thumb {
  width: 44px;
  height: 44px;
  border-radius: 6px;
  object-fit: cover;
  background: #f0f1f3;
  flex-shrink: 0;
}

.offer-fields { display: flex; flex-direction: column; gap: 6px; flex: 1; min-width: 0; }
.offer-fields input {
  padding: 7px 9px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13px;
  width: 100%;
}
.offer-fields-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 6px; }

.offer-row-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.offer-primary { display: flex; align-items: center; gap: 4px; font-size: 12px; color: var(--text-muted); white-space: nowrap; }

.offer-status {
  position: absolute;
  bottom: 4px;
  right: 12px;
  font-size: 11px;
  color: var(--text-muted);
}

.dialog-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  padding: 14px 20px;
  border-top: 1px solid var(--border);
}

.form-error {
  color: var(--danger);
  font-size: 13px;
  margin-right: auto;
}

@media (max-width: 600px) {
  .form-grid { grid-template-columns: 1fr; }
  .field-image { grid-column: span 1; }
  .offer-fields-grid { grid-template-columns: 1fr; }
}