:root {
  --bg:       #f8f5f0;
  --panel:    #ffffff;
  --line:     #e2d5c3;
  --gold:     #bf8127;
  --gold-dk:  #8b5a16;
  --text:     #1d160d;
  --muted:    #6f604e;
  --ok:       #1f7a3a;
  --danger:   #b3261e;
  --focus:    #1c64f2;
  --topbar-h: 56px;
  --tabbar-h: 42px;
}

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

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}

/* ── Topbar ── */

.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  padding: 0 20px;
  height: var(--topbar-h);
  background: #fff;
  border-bottom: 2px solid var(--gold);
  box-shadow: 0 2px 6px rgba(0,0,0,.08);
  gap: 12px;
}

.topbar-left { display: flex; align-items: baseline; gap: 10px; }
.topbar-right { display: flex; align-items: center; gap: 8px; }
h1 { font-size: 20px; font-weight: 900; color: var(--gold-dk); }

.mode-toggle {
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fff;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  padding: 5px 12px;
  cursor: pointer;
  white-space: nowrap;
}
.mode-toggle:hover { background: #f1e8d8; }
.mode-toggle.keypad { background: var(--gold); color: #fff; border-color: var(--gold); }

.store-select-label { font-size: 12px; font-weight: 700; color: var(--muted); }
.store-select {
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 5px 10px;
  font-size: 13px;
  font-weight: 600;
  background: #fff;
  color: var(--text);
  cursor: pointer;
}
.store-select:focus { outline: 2px solid var(--focus); }

/* ── Tabbar ── */

.tabbar {
  display: flex;
  height: var(--tabbar-h);
  background: #f3eadb;
  border-bottom: 1px solid var(--line);
  padding: 0 16px;
  position: sticky;
  top: var(--topbar-h);
  z-index: 90;
}

.tab-btn {
  border: none;
  border-bottom: 3px solid transparent;
  background: none;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
  padding: 0 20px;
  cursor: pointer;
  transition: color .15s, border-color .15s;
}
.tab-btn.active { color: var(--gold-dk); border-bottom-color: var(--gold); }
.tab-btn:hover:not(.active) { color: var(--text); }

/* ── Tab content ── */

.tab-content { display: none; padding: 16px; }
.tab-content.active { display: block; }

/* ── Scan area ── */

.scan-area {
  background: var(--panel);
  border: 2px solid var(--line);
  border-radius: 12px;
  padding: 16px 20px;
  margin-bottom: 14px;
}

.scan-label {
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: .04em;
}

.barcode-input {
  width: 100%;
  font-size: 18px;
  font-weight: 600;
  padding: 10px 14px;
  border: 2px solid var(--line);
  border-radius: 8px;
  background: #fdfaf6;
  color: var(--text);
  transition: border-color .15s;
}
.barcode-input:focus {
  outline: none;
  border-color: var(--gold);
  background: #fff;
}
.barcode-input.scanning {
  border-color: var(--focus);
  background: #f0f5ff;
}

/* ── Product card ── */

.product-card {
  background: var(--panel);
  border: 2px solid var(--gold);
  border-radius: 12px;
  padding: 18px 20px;
  margin-bottom: 14px;
}
.product-card.hidden { display: none; }
.product-card.error {
  border-color: var(--danger);
  color: var(--danger);
  padding: 14px 20px;
  font-weight: 700;
}

.card-name {
  font-size: 20px;
  font-weight: 800;
  color: var(--gold-dk);
  margin-bottom: 4px;
}
.card-meta {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 14px;
}
.card-stock {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 18px;
  padding: 6px 14px;
  border-radius: 20px;
  background: #f0e6d6;
}
.card-stock .qty { font-size: 22px; font-weight: 900; color: var(--gold-dk); }
.card-stock.low   .qty { color: #c17f00; }
.card-stock.empty .qty { color: var(--danger); }

.card-form { display: flex; flex-direction: column; gap: 10px; }

.unit-toggle {
  display: flex;
  gap: 6px;
  margin-bottom: 4px;
}
.unit-btn {
  border: 2px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 16px;
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
}
.unit-btn.active {
  background: var(--gold);
  color: #fff;
  border-color: var(--gold);
}

.qty-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.qty-input {
  width: 100px;
  font-size: 22px;
  font-weight: 800;
  text-align: center;
  padding: 8px 10px;
  border: 2px solid var(--line);
  border-radius: 8px;
  background: #fff;
}
.qty-input:focus { outline: none; border-color: var(--gold); }

.qty-unit { font-size: 15px; font-weight: 700; color: var(--text); }
.qty-preview {
  font-size: 13px;
  color: var(--muted);
  font-weight: 600;
  margin-left: 4px;
}

.reason-toggle {
  display: flex;
  gap: 6px;
}
.reason-btn {
  border: 2px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 16px;
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
}
.reason-btn.active {
  background: var(--gold-dk);
  color: #fff;
  border-color: var(--gold-dk);
}

.note-input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 13px;
  background: #fff;
}
.note-input:focus { outline: 2px solid var(--focus); }

.btn-register {
  align-self: flex-start;
  border: none;
  border-radius: 8px;
  background: var(--gold);
  color: #fff;
  font-size: 15px;
  font-weight: 800;
  padding: 10px 28px;
  cursor: pointer;
  transition: background .15s;
}
.btn-register:hover { background: var(--gold-dk); }
.btn-register:disabled { background: var(--line); color: var(--muted); cursor: default; }

/* ��─ Numeric keypad (fixed bottom) ── */

.num-keypad {
  position: fixed;
  bottom: 28px; /* above status bar */
  left: 0;
  right: 0;
  z-index: 80;
  background: #fff;
  border-top: 2px solid var(--line);
  padding: 8px 12px 10px;
  box-shadow: 0 -4px 16px rgba(0,0,0,.10);
}

body.keypad-active .tab-content.active {
  padding-bottom: 280px;
}

.keypad-display {
  font-size: 30px;
  font-weight: 900;
  text-align: right;
  padding: 6px 12px;
  background: #fdfaf6;
  border: 2px solid var(--line);
  border-radius: 8px;
  margin-bottom: 6px;
  color: var(--gold-dk);
  line-height: 1.2;
}
.keypad-display .kp-unit {
  font-size: 14px;
  font-weight: 700;
  color: var(--muted);
  margin-left: 6px;
}
.keypad-display .kp-preview {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  text-align: right;
}

.keypad-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 5px;
}

.kp-btn {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  font-size: 20px;
  font-weight: 700;
  padding: 0;
  height: 52px;
  cursor: pointer;
  transition: background .1s;
  user-select: none;
  -webkit-user-select: none;
}
.kp-btn:active { background: #f0e6d6; }
.kp-btn.kp-clear { color: var(--danger); font-size: 15px; }
.kp-btn.kp-back  { font-size: 18px; }
.kp-btn.kp-confirm {
  grid-column: span 3;
  background: var(--gold);
  color: #fff;
  border-color: var(--gold);
  font-size: 16px;
  height: 48px;
}
.kp-btn.kp-confirm:active { background: var(--gold-dk); }

/* ── Recent list ── */

.recent-list { margin-top: 4px; }

.recent-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .04em;
  margin-bottom: 6px;
}

.recent-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 12px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-bottom: 4px;
  font-size: 13px;
}
.recent-item .ri-name { flex: 1; font-weight: 600; }
.recent-item .ri-qty  { font-weight: 800; color: var(--ok); }
.recent-item .ri-qty.neg { color: var(--danger); }
.recent-item .ri-time { font-size: 11px; color: var(--muted); }
.recent-item .ri-stock { font-size: 12px; color: var(--muted); }

/* ── Tab head ── */

.tab-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.tab-title { font-size: 15px; font-weight: 800; color: var(--gold-dk); flex: 1; }

.search-input {
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 6px 12px;
  font-size: 13px;
  background: #fff;
  width: 220px;
}
.search-input:focus { outline: 2px solid var(--focus); }

.btn-reload {
  border: 1px solid var(--gold);
  border-radius: 6px;
  background: #fff;
  color: var(--gold-dk);
  font-weight: 700;
  font-size: 12px;
  padding: 5px 12px;
  cursor: pointer;
}
.btn-reload:hover { background: var(--gold); color: #fff; }

/* ── Table ── */

.table-wrap {
  overflow: auto;
  max-height: calc(100vh - var(--topbar-h) - var(--tabbar-h) - 70px);
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
  box-shadow: 0 2px 8px rgba(60,44,20,.06);
}

table { width: 100%; border-collapse: collapse; font-size: 13px; }

thead th {
  position: sticky;
  top: 0;
  z-index: 10;
  background: #f0e6d6;
  border-bottom: 2px solid var(--line);
  padding: 8px 10px;
  font-size: 12px;
  font-weight: 700;
  color: var(--gold-dk);
  white-space: nowrap;
}

tbody tr:nth-child(even) { background: #faf6f0; }
tbody tr:hover { background: #f5eddf; }

td {
  border-bottom: 1px solid #ede4d5;
  padding: 7px 10px;
  white-space: nowrap;
}

.col-n { text-align: right; min-width: 70px; }

.qty-pos { font-weight: 800; color: var(--ok); }
.qty-neg { font-weight: 800; color: var(--danger); }
.stock-low   { color: #c17f00; font-weight: 700; }
.stock-empty { color: var(--danger); font-weight: 700; }

.badge-reason {
  display: inline-block;
  border-radius: 999px;
  padding: 2px 10px;
  font-size: 11px;
  font-weight: 700;
}
.badge-RECEIVE     { background: #e3f4ea; color: var(--ok); }
.badge-KITCHEN_USE { background: #fff0e0; color: #7a4500; }
.badge-ADJUSTMENT  { background: #e8eaf6; color: #3949ab; }

.empty {
  text-align: center !important;
  color: var(--muted);
  padding: 32px 16px;
  font-size: 13px;
}

/* ── Status bar ── */

.status-bar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  padding: 6px 16px;
  font-size: 12px;
  font-weight: 700;
  background: rgba(255,255,255,.95);
  border-top: 1px solid var(--line);
  min-height: 28px;
}
.status-bar.ok    { color: var(--ok); }
.status-bar.error { color: var(--danger); }

/* ── Responsive ── */

@media (max-width: 700px) {
  .tab-btn { padding: 0 12px; font-size: 13px; }
  .qty-input { width: 80px; font-size: 18px; }
  .card-name { font-size: 17px; }
  .search-input { width: 160px; }
}