:root {
  --bg: #f5f6f8;
  --bg-elevated: #ffffff;
  --card-bg: #ffffff;
  --card-bg-hover: #f2f3f6;
  --text: #1a1d24;
  --muted: #6b7280;
  --border: #e2e4e9;
  --primary: #db2777;
  --primary-dark: #be185d;
  --primary-glow: rgba(219, 39, 119, 0.18);
  --accent: #5c9a12;
  --accent-dark: #4a7c0e;
  --danger: #dc2626;
  --success: #5c9a12;
  --radius: 14px;
}

[data-theme="dark"] {
  --bg: #0f1115;
  --bg-elevated: #15181e;
  --card-bg: #1a1e26;
  --card-bg-hover: #1f242d;
  --text: #eef0f4;
  --muted: #8b93a3;
  --border: #262b35;
  --primary: #ec4899;
  --primary-dark: #db2777;
  --primary-glow: rgba(236, 72, 153, 0.25);
  --accent: #a3e635;
  --accent-dark: #84cc16;
  --danger: #f43f5e;
  --success: #a3e635;
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

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

.muted { color: var(--muted); }
.small { font-size: 0.85em; }
.error-text { color: var(--danger); font-size: 0.85rem; }

/* ---------- login ---------- */

.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.login-screen[hidden] {
  display: none;
}

.login-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  width: 100%;
  max-width: 340px;
}
.login-card h1 { font-size: 1.2rem; margin: 0 0 18px; text-align: center; }

/* ---------- topbar ---------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  gap: 12px;
  flex-wrap: wrap;
}

.topbar h1 {
  font-size: 1.2rem;
  font-weight: 800;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  letter-spacing: -0.01em;
  color: var(--primary);
}

.logo-spark {
  color: var(--accent);
  font-size: 0.9rem;
}

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

.shop-select {
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  max-width: 160px;
}

.sync-info {
  padding: 0 16px 8px;
}

.btn-tiny {
  padding: 4px 10px;
  font-size: 0.75rem;
}

.sync-progress-bar {
  padding: 0 16px 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sync-progress-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.sync-progress-track {
  height: 6px;
  border-radius: 999px;
  background: var(--border);
  overflow: hidden;
}

.sync-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  width: 0%;
  transition: width 0.3s ease;
}

.sync-progress-track-indeterminate {
  position: relative;
}

.sync-progress-fill-indeterminate {
  position: absolute;
  height: 100%;
  width: 40%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 999px;
  animation: indeterminate 1.4s ease-in-out infinite;
}

@keyframes indeterminate {
  0% { left: -40%; }
  100% { left: 100%; }
}

.fbo-warehouses-list {
  margin: -8px 0 16px;
  padding: 10px 12px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 0.82rem;
}

.fbo-warehouses-list-title {
  color: var(--muted);
  margin-bottom: 6px;
}

.fbo-warehouse-row {
  display: flex;
  justify-content: space-between;
  padding: 3px 0;
}
.fbo-warehouse-row .qty {
  color: var(--accent);
  font-weight: 700;
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 20px;
  padding: 12px 0;
}

.pagination button {
  background: var(--card-bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 14px;
  cursor: pointer;
  font-size: 0.85rem;
}
.pagination button:hover:not(:disabled) { border-color: var(--primary); }
.pagination button:disabled { opacity: 0.4; cursor: not-allowed; }
.pagination .page-info { font-size: 0.85rem; color: var(--muted); }

.btn {
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: opacity 0.15s, transform 0.1s;
}
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 2px 12px var(--primary-glow);
}
.btn-primary:hover:not(:disabled) { background: var(--primary-dark); }

.btn-ghost {
  background: var(--card-bg);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover:not(:disabled) { background: var(--card-bg-hover); border-color: var(--primary); }

.btn-danger {
  background: transparent;
  color: var(--danger);
  border: 1px solid var(--danger);
}

.btn-danger-solid {
  background: var(--danger);
  color: #fff;
}
.btn-danger-solid:hover:not(:disabled) { opacity: 0.9; }

.btn-block { width: 100%; justify-content: center; margin-top: 8px; }

.icon { display: inline-block; }
.spinning { animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.tabs {
  display: flex;
  padding: 0 16px;
  gap: 4px;
  overflow-x: auto;
}

.tab {
  background: none;
  border: none;
  padding: 10px 14px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 6px;
}
.tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.count-badge {
  background: var(--primary);
  color: #fff;
  font-size: 0.7rem;
  padding: 1px 7px;
  border-radius: 999px;
  box-shadow: 0 0 8px var(--primary-glow);
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px;
}

body.has-bulk-bar main {
  padding-bottom: 70px;
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ---------- sticky filters ---------- */

.sticky-filters {
  position: sticky;
  top: 0;
  background: var(--bg-elevated);
  z-index: 9;
  padding: 10px 16px;
  border-top: 1px solid var(--border);
}

.bulk-edit-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  padding: 8px 12px;
  background: var(--primary);
  color: #fff;
  box-shadow: 0 -4px 16px rgba(0,0,0,0.25);
}
.bulk-edit-bar #bulkSelectedCount {
  font-weight: 700;
  font-size: 0.8rem;
}
.bulk-edit-bar #bulkStockInput {
  width: 110px;
  padding: 6px 8px;
  border-radius: 8px;
  border: none;
  background: rgba(255,255,255,0.15);
  color: #fff;
  font-size: 16px;
}
.bulk-edit-bar #bulkStockInput::placeholder {
  color: rgba(255,255,255,0.7);
}
.bulk-edit-bar .btn {
  padding: 6px 10px;
  font-size: 0.78rem;
}
.bulk-edit-bar .btn-primary {
  background: #fff;
  color: var(--primary);
  box-shadow: none;
}
.bulk-edit-bar .btn-ghost {
  background: transparent;
  border-color: rgba(255,255,255,0.5);
  color: #fff;
}

.search-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.search-input-wrap {
  position: relative;
  flex: 1;
  min-width: 200px;
  display: flex;
}

#searchInput {
  flex: 1;
  padding: 10px 44px 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  font-size: 16px;
  width: 100%;
  transition: border-color 0.15s;
}
#searchInput:focus {
  outline: none;
  border-color: var(--primary);
}

.scan-btn {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  padding: 6px 8px;
  line-height: 1;
  color: var(--muted);
}
.scan-btn:hover { color: var(--primary); }

#brandFilter,
#tagFilter,
#fboWarehouseFilter {
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  font-size: 16px;
  max-width: 180px;
}

.fbo-filter-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--text);
  white-space: nowrap;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  cursor: pointer;
}
.fbo-filter-label input {
  width: auto;
  margin: 0;
  accent-color: var(--primary);
}

.theme-toggle-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  margin-bottom: 4px;
}
.theme-toggle-row input {
  width: auto;
  margin: 0;
  accent-color: var(--primary);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.product-card {
  position: relative;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px;
  cursor: pointer;
  transition: box-shadow 0.15s, transform 0.1s, border-color 0.15s;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.product-card:hover {
  box-shadow: 0 4px 20px rgba(0,0,0,0.35);
  transform: translateY(-1px);
  border-color: var(--border);
  background: var(--card-bg-hover);
}
.product-card.has-pending { border-color: var(--primary); box-shadow: 0 0 0 1px var(--primary); }
.product-card.is-selected { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }

.card-select-checkbox {
  position: absolute;
  top: 8px;
  left: 8px;
  z-index: 2;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 17, 21, 0.75);
  border-radius: 6px;
  cursor: pointer;
}
.card-select-checkbox input {
  width: 16px;
  height: 16px;
  margin: 0;
  accent-color: var(--accent);
  cursor: pointer;
}

.product-photo {
  width: 100%;
  max-height: 180px;
  height: auto;
  object-fit: contain;
  border-radius: 8px;
  background: var(--bg);
  display: block;
  margin: 0 auto;
}

div.product-photo {
  aspect-ratio: 1;
  height: auto;
}

.product-title {
  font-size: 0.85rem;
  font-weight: 600;
  line-height: 1.35;
  overflow-wrap: break-word;
}

.product-meta {
  font-size: 0.75rem;
  color: var(--muted);
}

.stock-block {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stock-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.stock-row-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--muted);
}

.stock-row-value {
  font-weight: 700;
}

.stock-row-fbs .stock-row-label {
  color: var(--text);
}
.stock-row-value-fbs {
  font-size: 1.05rem;
  color: var(--accent);
}

.stock-row-fbo {
  padding-top: 3px;
  border-top: 1px dashed var(--border);
}
.stock-row-value-fbo {
  font-size: 0.85rem;
  color: var(--muted);
}

.stock-inline-edit {
  display: flex;
}

.stock-inline-input {
  width: 56px;
  padding: 2px 4px;
  border: none;
  border-bottom: 1px dashed var(--border);
  background: transparent;
  color: var(--accent);
  font-size: 1.05rem;
  font-weight: 700;
  font-family: inherit;
  text-align: right;
  -moz-appearance: textfield;
}
.stock-inline-input::-webkit-outer-spin-button,
.stock-inline-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.stock-inline-input:focus {
  outline: none;
  border-bottom-color: var(--primary);
  border-bottom-style: solid;
}
.stock-inline-input.dirty {
  color: var(--primary);
}

.fbo-warehouse-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.fbo-chip {
  font-size: 0.65rem;
  color: var(--muted);
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 1px 7px;
}
.fbo-chip b {
  color: var(--muted);
  font-weight: 700;
}

.product-pending-tag {
  font-size: 0.7rem;
  color: var(--primary);
  font-weight: 700;
}

.wb-link {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}
.wb-link:hover {
  text-decoration: underline;
}

.product-tags-row {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.mini-tag {
  font-size: 0.65rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 1px 7px;
  color: var(--muted);
}

.empty-state {
  text-align: center;
  padding: 48px 16px;
  color: var(--muted);
}

/* ---------- modals ---------- */

.modal {
  position: fixed;
  inset: 0;
  background: rgba(4, 5, 8, 0.7);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 16px;
}

.modal[hidden] {
  display: none;
}

.modal-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  max-width: 420px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.modal-card-wide {
  max-width: 520px;
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--muted);
  line-height: 1;
}

.modal-photo {
  width: auto;
  max-width: 100%;
  max-height: 220px;
  height: auto;
  object-fit: contain;
  border-radius: 8px;
  display: block;
  margin: 0 auto 12px;
  background: var(--bg);
}

.modal-card h3 { margin: 0 0 12px; font-size: 1rem; padding-right: 24px; }
.modal-card h4 { margin: 12px 0 8px; font-size: 0.9rem; }
.modal-divider { border: none; border-top: 1px solid var(--border); margin: 16px 0; }

.modal-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.88rem;
  margin-bottom: 16px;
}

.modal-stock-block {
  margin-bottom: 12px;
}
.modal-stock-block .stock-row-label {
  font-size: 0.72rem;
}
.modal-stock-block .stock-row-value-fbs {
  font-size: 1.15rem;
}
.modal-stock-block .stock-row-value-fbo {
  font-size: 0.95rem;
}

.stock-input-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.stock-input-label input,
.stock-input-label select {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  font-size: 1rem;
}
.stock-input-label input:focus,
.stock-input-label select:focus {
  outline: none;
  border-color: var(--primary);
}

.tag-checkboxes {
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 180px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
}

.tag-checkbox-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 400;
  font-size: 0.9rem;
}
.tag-checkbox-row input { width: auto; margin: 0; }

.shop-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 8px;
}

.shop-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
}
.shop-row.active { border-color: var(--primary); box-shadow: 0 0 0 1px var(--primary); }
.shop-row.active .shop-select-btn { color: var(--accent); }
.shop-row-name { flex: 1; font-size: 0.9rem; font-weight: 600; }
.shop-row button {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.9rem;
  padding: 4px 8px;
}
.shop-row .shop-delete { color: var(--danger); }

.pending-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}
.pending-header h2 { font-size: 1rem; margin: 0; }
.pending-actions { display: flex; gap: 8px; }

.pending-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.pending-row {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
}

.pending-row img {
  width: 44px;
  height: 44px;
  object-fit: contain;
  border-radius: 6px;
  background: var(--bg);
  flex-shrink: 0;
}

.pending-row-info { flex: 1; min-width: 0; }
.pending-row-title {
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pending-row-stock {
  font-size: 0.85rem;
  white-space: nowrap;
  display: flex;
  align-items: center;
}
.pending-row-stock .arrow { color: var(--muted); margin: 0 4px; }
.pending-row-stock .new { color: var(--accent); font-weight: 700; }

.pending-row-checkbox {
  position: static;
  background: none;
  width: auto;
  height: auto;
  flex-shrink: 0;
}

.pending-row-input {
  width: 60px;
}

.pending-row-remove {
  background: none;
  border: none;
  color: var(--danger);
  font-size: 1.3rem;
  cursor: pointer;
  line-height: 1;
  padding: 4px 8px;
}

.scan-modal-card {
  max-width: 480px;
}
.scan-video {
  width: 100%;
  border-radius: 8px;
  background: #000;
  max-height: 60vh;
}

.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 12px 20px;
  border-radius: 10px;
  font-size: 0.9rem;
  z-index: 200;
  max-width: 90vw;
  text-align: center;
  box-shadow: 0 8px 30px rgba(0,0,0,0.4);
}
.toast.error { background: var(--danger); border-color: var(--danger); color: #fff; }
.toast.success { background: var(--success); border-color: var(--success); color: #0f1115; }

@media (max-width: 600px) {
  .grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
  .btn { padding: 9px 12px; font-size: 0.85rem; }

  .topbar-inner {
    padding: 8px 10px;
    gap: 8px;
    flex-wrap: nowrap;
  }
  .topbar h1 {
    font-size: 0.95rem;
    flex-shrink: 0;
  }
  .topbar-actions {
    flex-wrap: nowrap;
    gap: 6px;
    flex: 1;
    justify-content: flex-end;
    overflow-x: auto;
  }
  .shop-select {
    max-width: 90px;
    padding: 8px 4px;
    font-size: 16px;
  }
  .btn-label { display: none; }
  .topbar-actions .btn {
    padding: 8px 10px;
  }
  .sync-info {
    padding: 0 10px 6px;
  }
  .sync-info .small {
    font-size: 0.72rem;
  }
  .sync-progress-bar {
    padding: 0 10px 8px;
  }
  .tabs {
    padding: 0 10px;
  }
  .tab {
    padding: 8px 10px;
    font-size: 0.82rem;
  }
  .sticky-filters {
    position: static;
    padding: 8px 10px;
  }
  .search-row {
    gap: 6px;
  }
  .search-input-wrap {
    min-width: 100%;
  }
  #searchInput {
    padding: 8px 40px 8px 10px;
  }
  #brandFilter,
  #tagFilter,
  #fboWarehouseFilter {
    padding: 6px 8px;
    max-width: none;
    width: 100%;
    min-width: 0;
    flex: 1 1 100%;
    font-size: 16px;
    box-sizing: border-box;
  }
  .fbo-filter-label {
    padding: 6px 8px;
    font-size: 0.75rem;
  }
  #productsCount {
    font-size: 0.75rem;
  }
  .bulk-edit-bar {
    padding: 6px 10px;
    gap: 6px;
  }
  .bulk-edit-bar #bulkStockInput {
    width: 90px;
  }
  body.has-bulk-bar main {
    padding-bottom: 96px;
  }
}