/* ── Variables ─────────────────────────────────────────────────────────────── */
:root {
  --bg:           #282c31;
  --surface:      #32363d;
  --surface-hi:   #3a3f47;
  --border:       rgba(255,255,255,.07);
  --primary:      #33CC99;
  --primary-dk:   #2BA877;
  --text:         #e8eaed;
  --muted:        rgba(232,234,237,.5);
  --warning:      #f59e0b;
  --danger:       #ef4444;
  --radius:       10px;
  --radius-sm:    6px;
  --shadow:       0 2px 12px rgba(0,0,0,.35);
  --transition:   .18s ease;
}

/* ── Reset / base ──────────────────────────────────────────────────────────── */
*,*::before,*::after { box-sizing: border-box; }

body {
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: 1rem;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  margin: 0;
  overflow-x: hidden;
}

/* ── Sticky header ─────────────────────────────────────────────────────────── */
.top-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 8px rgba(0,0,0,.3);
}

.top-bar-inner {
  max-width: 760px;
  margin: 0 auto;
  padding: .75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.app-title {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--text);
}

.app-title .amp {
  color: var(--primary);
}

.top-bar-actions {
  display: flex;
  align-items: center;
  gap: .5rem;
}

.expiry-badge {
  background: var(--warning);
  color: #1a1a1a;
  font-size: .72rem;
  font-weight: 700;
  padding: .2rem .55rem;
  border-radius: 99px;
  line-height: 1;
}

.icon-btn {
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  padding: .35rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  transition: color var(--transition), background var(--transition);
}
.icon-btn:hover { color: var(--text); background: rgba(255,255,255,.06); }

/* ── Page wrapper ──────────────────────────────────────────────────────────── */
.page {
  max-width: 760px;
  margin: 0 auto;
  padding: 1rem 1rem 3rem;
}

/* ── Expiry banner ─────────────────────────────────────────────────────────── */
.expiry-banner[hidden] { display: none; }
.expiry-banner {
  display: flex;
  align-items: center;
  gap: .6rem;
  background: rgba(245,158,11,.12);
  border: 1px solid rgba(245,158,11,.35);
  border-radius: var(--radius);
  padding: .7rem 1rem;
  margin-bottom: 1rem;
  font-size: .9rem;
  color: var(--warning);
  font-weight: 500;
}

.expiry-banner-icon { font-size: 1rem; flex-shrink: 0; }

/* ── Search ────────────────────────────────────────────────────────────────── */
.search-wrap {
  position: relative;
  margin-bottom: 1.25rem;
}

.search-icon {
  position: absolute;
  left: .85rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  pointer-events: none;
}

.search-wrap input {
  width: 100%;
  padding: .7rem 2.5rem .7rem 2.4rem;
  font-size: .95rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.search-wrap input::placeholder { color: var(--muted); }

.search-wrap input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(51,204,153,.15);
}

.clear-btn {
  position: absolute;
  right: .6rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--muted);
  font-size: 1rem;
  cursor: pointer;
  padding: .25rem .5rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition);
}
.clear-btn:hover { color: var(--text); }

/* ── Location card ─────────────────────────────────────────────────────────── */
.location-group {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 1rem;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.location-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .75rem 1rem;
  border-bottom: 1px solid var(--border);
  gap: .5rem;
}

.location-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin: 0;
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.location-meta {
  font-size: .78rem;
  color: var(--muted);
  flex-shrink: 0;
}

.location-actions {
  display: flex;
  align-items: center;
  gap: .25rem;
  flex-shrink: 0;
}

.loc-action-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: .3rem .4rem;
  border-radius: var(--radius-sm);
  font-size: .85rem;
  color: var(--muted);
  transition: color var(--transition), background var(--transition);
  line-height: 1;
}
.loc-action-btn:hover { color: var(--text); background: rgba(255,255,255,.07); }
.loc-action-btn.danger:hover { color: var(--danger); background: rgba(239,68,68,.1); }

.add-item-btn {
  background: var(--primary);
  color: #fff;
  border: none;
  cursor: pointer;
  padding: .25rem .65rem;
  border-radius: var(--radius-sm);
  font-size: .85rem;
  font-weight: 600;
  line-height: 1.6;
  transition: background var(--transition);
}
.add-item-btn:hover { background: var(--primary-dk); }

/* ── Item list ─────────────────────────────────────────────────────────────── */
.item-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.item-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .5rem .75rem;
  padding: .65rem 1rem;
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}
.item-row:last-child { border-bottom: none; }
.item-row:hover { background: rgba(255,255,255,.03); }

.item-row.out-of-stock { opacity: .55; }
.item-row.out-of-stock .item-name { text-decoration: line-through; }

/* click target for edit */
.item-body {
  flex: 1;
  min-width: 0;
  cursor: pointer;
}

.item-name {
  font-size: .95rem;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.item-tags {
  display: flex;
  flex-wrap: wrap;
  gap: .3rem;
  margin-top: .25rem;
}

/* Use-by date pill */
.use-by-pill {
  display: inline-flex;
  align-items: center;
  gap: .25rem;
  font-size: .72rem;
  font-weight: 600;
  padding: .15rem .5rem;
  border-radius: 99px;
  line-height: 1.4;
}

.use-by-pill.ok {
  background: rgba(51,204,153,.12);
  color: var(--primary);
}

.use-by-pill.soon {
  background: rgba(245,158,11,.15);
  color: var(--warning);
}

.use-by-pill.expired {
  background: rgba(239,68,68,.15);
  color: var(--danger);
}

/* ── Batch chips ───────────────────────────────────────────────────────────── */
.batches-wrap {
  display: flex;
  align-items: center;
  gap: .4rem;
  flex-shrink: 0;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.batch-chips {
  display: flex;
  gap: .3rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.batch-chip {
  display: inline-flex;
  align-items: center;
  border-radius: 99px;
  font-size: .78rem;
  font-weight: 600;
  border: 1px solid transparent;
  padding: .22rem .6rem;
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  transition: filter var(--transition);
}
.batch-chip:hover { filter: brightness(1.15); }

.batch-chip.ok      { background: rgba(16,185,129,.1);  color: #10b981;        border-color: rgba(16,185,129,.25); }
.batch-chip.soon    { background: rgba(245,158,11,.12); color: var(--warning); border-color: rgba(245,158,11,.35); }
.batch-chip.expired { background: rgba(239,68,68,.12);  color: var(--danger);  border-color: rgba(239,68,68,.3);  }
.batch-chip.nodate  { background: var(--bg);            color: var(--muted);   border-color: var(--border);       }

/* Quantity-only count display */
.qty-count {
  font-size: .95rem;
  font-weight: 600;
  color: var(--muted);
  padding: .1rem .2rem;
  min-width: 2ch;
  text-align: right;
}

/* Item-level +/- buttons */
.item-qty-btns { display: flex; gap: .25rem; flex-shrink: 0; }

/* Batch picker modal */
.batch-picker-list { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: .5rem; }
.batch-picker-btn  { font: inherit; }

/* Batch list inside edit modal */
.modal-batch-chips { display: flex; flex-wrap: wrap; gap: .35rem; margin-bottom: .5rem; }
.modal-batch-empty { font-size: .85rem; color: var(--muted); margin: .2rem 0 .5rem; font-style: italic; }

.btn-add-stock {
  background: none;
  border: 1px dashed rgba(51,204,153,.4);
  color: var(--primary);
  padding: .35rem .8rem;
  border-radius: var(--radius-sm);
  font-size: .85rem;
  cursor: pointer;
  width: 100%;
  transition: border-color var(--transition), background var(--transition);
}
.btn-add-stock:hover { border-color: var(--primary); background: rgba(51,204,153,.06); }

/* ── Quantity control ──────────────────────────────────────────────────────── */
.qty-wrap {
  display: flex;
  align-items: center;
  gap: .3rem;
  flex-shrink: 0;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .2rem .35rem;
}

.qty-btn {
  background: var(--primary);
  color: #fff;
  border: none;
  width: 22px;
  height: 22px;
  border-radius: 4px;
  cursor: pointer;
  font-size: .85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: background var(--transition);
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}
.qty-btn:hover { background: var(--primary-dk); }

.qty-display {
  min-width: 28px;
  text-align: center;
  font-weight: 700;
  font-size: .9rem;
}

.out-of-stock-label {
  font-size: .78rem;
  color: var(--danger);
  font-weight: 600;
  padding: .15rem .45rem;
  background: rgba(239,68,68,.1);
  border-radius: 99px;
}

/* Expand touch area on mobile */
@media (pointer: coarse) {
  .qty-btn { position: relative; }
  .qty-btn::after {
    content: '';
    position: absolute;
    inset: -5px;
    border-radius: 8px;
  }
}

/* ── Empty states ──────────────────────────────────────────────────────────── */
.empty-location {
  padding: 1.25rem 1rem;
  text-align: center;
  color: var(--muted);
  font-size: .9rem;
  font-style: italic;
}

.empty-inventory {
  text-align: center;
  color: var(--muted);
  padding: 3rem 1rem;
  font-size: .95rem;
}

.loading-state {
  text-align: center;
  color: var(--muted);
  padding: 2rem;
}

/* ── Add location button ───────────────────────────────────────────────────── */
.add-location-wrap {
  display: flex;
  justify-content: center;
  margin-top: 1.25rem;
}

.add-location-btn {
  display: flex;
  align-items: center;
  gap: .45rem;
  background: none;
  border: 1px dashed rgba(51,204,153,.4);
  color: var(--primary);
  padding: .55rem 1.25rem;
  border-radius: var(--radius);
  font-size: .9rem;
  font-weight: 500;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
}
.add-location-btn:hover {
  border-color: var(--primary);
  background: rgba(51,204,153,.06);
}

/* ── Modal ─────────────────────────────────────────────────────────────────── */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.65);
  backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 400;
  padding: 1rem;
}

.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  width: 100%;
  max-width: 440px;
  padding: 1.5rem;
  box-shadow: 0 16px 48px rgba(0,0,0,.5);
  animation: modalIn .2s ease;
}

@keyframes modalIn {
  from { opacity: 0; transform: translateY(8px) scale(.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-title {
  margin: 0 0 1.1rem;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}

.modal-message {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: .9rem;
  line-height: 1.5;
}

.field-label {
  display: block;
  font-size: .8rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .04em;
  margin-bottom: .35rem;
}

.field-group {
  margin-bottom: .9rem;
}

.modal-input {
  width: 100%;
  padding: .65rem .85rem;
  font-size: .95rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.modal-input::placeholder { color: var(--muted); }
.modal-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(51,204,153,.15);
}

.modal-input[type="number"] { width: 90px; }

/* Toggle row */
.toggle-row {
  display: flex;
  align-items: center;
  gap: .6rem;
  margin-bottom: .9rem;
  cursor: pointer;
  user-select: none;
}
.toggle-row input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--primary);
  cursor: pointer;
}
.toggle-row span {
  font-size: .9rem;
  color: var(--text);
}

.modal-actions {
  display: flex;
  gap: .6rem;
  margin-top: 1.1rem;
}

.modal-actions button {
  flex: 1;
  padding: .65rem;
  border-radius: var(--radius-sm);
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  transition: filter var(--transition), background var(--transition);
  border: none;
}

.btn-confirm {
  background: var(--primary-dk);
  color: #fff;
}
.btn-confirm:hover { filter: brightness(1.1); }

.btn-cancel {
  background: var(--bg);
  border: 1px solid var(--border) !important;
  color: var(--text);
}
.btn-cancel:hover { background: var(--surface-hi); }

.btn-danger {
  background: rgba(239,68,68,.15);
  color: var(--danger);
  border: 1px solid rgba(239,68,68,.3) !important;
}
.btn-danger:hover { background: rgba(239,68,68,.25); }

/* ── Responsive ────────────────────────────────────────────────────────────── */
@media (max-width: 600px) {
  .top-bar-inner { padding: .6rem .75rem; }
  .app-title { font-size: 1.15rem; }
  .page { padding: .75rem .75rem 3rem; }

  .location-header { padding: .6rem .75rem; }
  .item-row { padding: .55rem .75rem; }

  .modal { padding: 1.25rem; }
  .modal-title { font-size: 1rem; }
}