:root {
  --bg: #0b1120;
  --card: #111827;
  --inset: #0f172a;
  --border: #1f2937;
  --border-focus: #334155;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --faint: #6b7280;
  --hover-card: #0f172a;
  --accent: #60a5fa;
  --success: #4ade80;
  --danger: #f87171;
  --shadow: rgba(0, 0, 0, 0.35);
  --overlay: rgba(11, 17, 32, 0.92);
}

[data-theme="light"] {
  --bg: #f0f4f8;
  --card: #ffffff;
  --inset: #f1f5f9;
  --border: #e2e8f0;
  --border-focus: #94a3b8;
  --text: #1e293b;
  --muted: #64748b;
  --faint: #94a3b8;
  --hover-card: #f8fafc;
  --shadow: rgba(0, 0, 0, 0.1);
  --overlay: rgba(240, 244, 248, 0.92);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 30px 20px;
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: background 0.3s, color 0.3s;
  min-height: 100vh;
}

body > * {
  width: 100%;
  max-width: 1400px;
}

/* ── Header ── */

header {
  display: grid;
  grid-template-columns: 1fr;
  gap: 15px;
  margin-bottom: 20px;
  padding: 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.logo-title {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-bottom: 15px;
  border-bottom: 1px solid var(--border);
}

.logo {
  height: 44px;
  width: auto;
  object-fit: contain;
}

header h1 {
  margin: 0;
  font-size: 1.7rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.header-controls {
  display: grid;
  gap: 12px;
}

.search-container {
  position: relative;
  width: 100%;
}

#search {
  width: 100%;
  padding: 10px 14px;
  background: var(--inset);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s, background 0.2s;
}

#search::placeholder {
  color: var(--faint);
}

#search:focus {
  border-color: var(--accent);
  background: var(--inset);
}

.header-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

select {
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--inset);
  color: var(--text);
  font-size: 0.9rem;
  outline: none;
  width: 100%;
  cursor: pointer;
  transition: border-color 0.2s;
}

select:focus {
  border-color: var(--accent);
}

/* ── Autocomplete ── */

.search-autocomplete {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--card);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 8px 8px;
  max-height: 280px;
  overflow-y: auto;
  z-index: 100;
  box-shadow: 0 8px 24px var(--shadow);
}

.autocomplete-item {
  padding: 10px 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: background 0.15s;
}

.autocomplete-item:hover {
  background: var(--inset);
}

.autocomplete-item img {
  width: 32px;
  height: 32px;
  object-fit: contain;
  border-radius: 4px;
}

.autocomplete-item-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.autocomplete-item-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

.autocomplete-item-price {
  font-size: 0.75rem;
  color: var(--muted);
}

/* ── Controls bar ── */

.controls-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  padding: 0 2px;
}

#itemCount {
  font-size: 0.85rem;
  color: var(--muted);
}

/* ── Item List ── */

#itemsContainer {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 40px;
}

.item-card-list {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 18px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: background 0.15s, border-color 0.15s;
  cursor: default;
}

.item-card-list:hover {
  background: var(--hover-card);
  border-color: var(--border-focus);
}

.item-card-list-image {
  width: 52px;
  height: 52px;
  object-fit: contain;
  border-radius: 6px;
  flex-shrink: 0;
  background: var(--inset);
}

.item-card-list-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.item-card-list-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.item-card-list-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.item-card-list-category {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.item-stock-badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
  letter-spacing: 0.02em;
}

.stock-in {
  background: rgba(74, 222, 128, 0.12);
  color: var(--success);
  border: 1px solid rgba(74, 222, 128, 0.25);
}

.stock-out {
  background: rgba(248, 113, 113, 0.12);
  color: var(--danger);
  border: 1px solid rgba(248, 113, 113, 0.25);
}

.item-moq {
  font-size: 0.72rem;
  color: var(--muted);
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--inset);
  border: 1px solid var(--border);
}

.item-notes {
  font-size: 0.8rem;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.item-card-list-prices {
  flex-shrink: 0;
  text-align: right;
}

.item-price-value {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.01em;
}

/* ── Footer ── */

footer {
  margin-top: auto;
  padding: 24px 0 10px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
  width: 100%;
  max-width: 1400px;
}

footer a {
  color: var(--accent);
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

/* ── Scrollbar ── */

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--faint); }

/* ── Responsive ── */

@media (max-width: 640px) {
  body { padding: 16px 12px; }
  header { padding: 14px; gap: 12px; }
  header h1 { font-size: 1.3rem; }
  .logo { height: 36px; }
  .header-buttons { grid-template-columns: 1fr; }
  .item-card-list { padding: 12px 14px; gap: 12px; }
  .item-card-list-image { width: 44px; height: 44px; }
  .item-card-list-name { font-size: 0.9rem; }
  .item-price-value { font-size: 0.9rem; }
}