/* ─── Reset ─────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #080c14;
  --bg2:       #0d1220;
  --bg3:       #121829;
  --bg4:       #1a2235;
  --border:    #1e2d45;
  --border2:   #243352;
  --accent:    #4f8ef7;
  --accent2:   #7c6cf7;
  --glow:      rgba(79,142,247,.18);
  --success:   #22d07a;
  --warning:   #f5a623;
  --danger:    #f05a5a;
  --text:      #e4eaf6;
  --text2:     #7a8db0;
  --text3:     #3f5070;
  --radius:    14px;
  --radius-sm: 8px;
  --sidebar-w: 230px;
  --topbar-h:  58px;
}

html, body {
  height: 100%;
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}

/* ─── Sidebar ────────────────────────────────────────────────────────────── */
.sidebar {
  position: fixed; left: 0; top: 0; bottom: 0;
  width: var(--sidebar-w);
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  padding: 1.5rem 0;
  z-index: 200;
  transition: transform .28s cubic-bezier(.4,0,.2,1);
}

.sidebar-brand {
  display: flex; align-items: center; gap: .85rem;
  padding: 0 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: .5rem;
}
.brand-logo {
  width: 38px; height: 38px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px var(--glow);
}
.logo-icon { font-size: 1.2rem; color: #fff; font-style: normal; }
.logo-icon.sm { font-size: 1rem; margin-right: .35rem; }
.brand-name { font-size: 1rem; font-weight: 700; letter-spacing: -.01em; }
.brand-sub  { font-size: .68rem; color: var(--text3); margin-top: .05rem; }

.nav-section-label {
  font-size: .62rem; font-weight: 700; letter-spacing: .1em;
  color: var(--text3); padding: .75rem 1.25rem .3rem;
}
.nav-links { display: flex; flex-direction: column; gap: .1rem; padding: 0 .75rem; }
.nav-link {
  display: flex; align-items: center; gap: .75rem;
  padding: .65rem .85rem;
  color: var(--text2); font-weight: 500; font-size: .88rem;
  border-radius: var(--radius-sm);
  cursor: pointer; transition: all .15s;
  user-select: none;
}
.nav-link:hover { background: var(--bg3); color: var(--text); }
.nav-link.active {
  background: linear-gradient(90deg, rgba(79,142,247,.18), rgba(79,142,247,.08));
  color: var(--accent);
  box-shadow: inset 3px 0 0 var(--accent);
}
.nav-icon { font-size: 1rem; width: 1.1rem; text-align: center; }

.sidebar-footer { margin-top: auto; padding: 1rem 1.25rem; border-top: 1px solid var(--border); }
.index-pill {
  display: flex; align-items: center; gap: .5rem;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 20px; padding: .4rem .85rem;
  font-size: .73rem; color: var(--text2);
}
.index-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 6px var(--success);
  flex-shrink: 0;
}

/* ─── Mobile top bar ─────────────────────────────────────────────────────── */
.topbar {
  display: none; position: fixed; top: 0; left: 0; right: 0;
  height: var(--topbar-h);
  background: var(--bg2); border-bottom: 1px solid var(--border);
  align-items: center; padding: 0 1rem; gap: .85rem; z-index: 201;
}
.menu-btn {
  background: none; border: none; cursor: pointer;
  display: flex; flex-direction: column; gap: 4px; padding: 4px;
}
.menu-btn span {
  display: block; width: 20px; height: 2px;
  background: var(--text2); border-radius: 2px; transition: .2s;
}
.topbar-brand { font-weight: 700; font-size: .95rem; display: flex; align-items: center; }
.sidebar-overlay {
  display: none; position: fixed; inset: 0; background: rgba(0,0,0,.6);
  z-index: 199; backdrop-filter: blur(2px);
}

/* ─── Main content ───────────────────────────────────────────────────────── */
.main-content {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
  padding: 2.25rem 2.5rem;
}

/* ─── Pages ──────────────────────────────────────────────────────────────── */
.page { display: none; animation: fadeIn .2s ease; }
.page.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.page-header {
  display: flex; justify-content: space-between; align-items: flex-start;
  margin-bottom: 2rem; gap: 1rem;
}
.page-header h1 { font-size: 1.7rem; font-weight: 800; letter-spacing: -.02em; }
.page-sub { color: var(--text2); font-size: .85rem; margin-top: .25rem; }
.header-actions { display: flex; gap: .65rem; align-items: center; flex-shrink: 0; }

/* ─── Search bar ─────────────────────────────────────────────────────────── */
.search-bar {
  display: flex; align-items: center; gap: .5rem;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: .45rem .85rem;
  transition: border-color .15s;
}
.search-bar:focus-within { border-color: var(--accent); }
.search-bar-icon { color: var(--text3); font-size: .85rem; }
.search-bar input {
  background: none; border: none; color: var(--text);
  font-size: .85rem; width: 200px; outline: none;
}
.search-bar input::placeholder { color: var(--text3); }

/* ─── Cards ──────────────────────────────────────────────────────────────── */
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: 0 4px 32px rgba(0,0,0,.35);
}

/* ─── Buttons ────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  padding: .55rem 1.15rem; border-radius: var(--radius-sm);
  font-size: .85rem; font-weight: 600; cursor: pointer; border: none;
  transition: all .15s; white-space: nowrap; letter-spacing: -.01em;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff; box-shadow: 0 4px 14px rgba(79,142,247,.35);
}
.btn-primary:hover { box-shadow: 0 6px 20px rgba(79,142,247,.5); transform: translateY(-1px); }
.btn-ghost  { background: var(--bg3); color: var(--text2); border: 1px solid var(--border); }
.btn-ghost:hover  { background: var(--bg4); color: var(--text); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-lg     { padding: .75rem 2rem; font-size: .95rem; }
.btn-sm     { padding: .35rem .75rem; font-size: .78rem; }
.btn-full   { width: 100%; }
.btn:disabled { opacity: .4; cursor: not-allowed; transform: none !important; box-shadow: none !important; }

/* ─── Tabs ───────────────────────────────────────────────────────────────── */
.tab-row {
  display: flex; gap: .35rem; margin-bottom: 1.1rem;
  background: var(--bg3); border: 1px solid var(--border);
  padding: .3rem; border-radius: var(--radius-sm);
}
.tab-row.three .tab { flex: 1; }
.tab {
  flex: 1; padding: .45rem .6rem;
  background: none; border: none; color: var(--text2);
  border-radius: 6px; font-size: .8rem; font-weight: 600;
  cursor: pointer; transition: all .15s;
}
.tab.active { background: var(--bg4); color: var(--text); box-shadow: 0 1px 6px rgba(0,0,0,.3); }
.tab-panel  { display: none; }
.tab-panel.active { display: block; }

/* ─── Drop zone ──────────────────────────────────────────────────────────── */
.drop-zone {
  border: 2px dashed var(--border2);
  border-radius: var(--radius); padding: 2.25rem 1.5rem;
  text-align: center; cursor: pointer;
  transition: all .2s; color: var(--text2);
  background: var(--bg3);
}
.drop-zone:hover { border-color: var(--accent); background: rgba(79,142,247,.06); color: var(--text); }
.dz-icon  { font-size: 2.25rem; margin-bottom: .5rem; display: block; }
.dz-hint  { font-size: .72rem; color: var(--text3); display: block; margin-top: .4rem; }

/* ─── Camera ─────────────────────────────────────────────────────────────── */
.cam-container {
  position: relative; background: #000;
  border-radius: var(--radius); overflow: hidden;
  min-height: 240px; width: 100%;
}
.cam-container video {
  width: 100%; display: block;
  max-height: 320px; object-fit: cover;
}
.cam-overlay {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  background: rgba(8,12,20,.75); gap: .75rem;
  transition: opacity .25s;
}
.cam-overlay.hidden { opacity: 0; pointer-events: none; }
.cam-overlay-hint { color: var(--text2); font-size: .8rem; }
.cam-start-btn {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff; border: none; padding: .7rem 1.5rem;
  border-radius: var(--radius-sm); font-size: .88rem;
  font-weight: 600; cursor: pointer;
  box-shadow: 0 4px 20px rgba(79,142,247,.4);
  transition: .15s;
}
.cam-start-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(79,142,247,.5); }

/* Shutter button */
.cam-shutter {
  position: absolute; bottom: 14px; left: 50%; transform: translateX(-50%);
  width: 54px; height: 54px; border-radius: 50%;
  background: rgba(255,255,255,.15);
  border: 3px solid #fff;
  color: #fff; font-size: 1.6rem; line-height: 1;
  cursor: pointer; transition: .15s;
  display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(6px);
}
.cam-shutter:not(:disabled):hover { background: rgba(255,255,255,.28); transform: translateX(-50%) scale(1.07); }
.cam-shutter:disabled { opacity: .3; cursor: not-allowed; }

.cam-captured-wrap { margin-top: .85rem; }

/* ─── Preview ────────────────────────────────────────────────────────────── */
.preview-wrap {
  margin-top: .85rem;
  display: flex; flex-direction: column; gap: .5rem;
}
.preview-img {
  width: 100%; max-height: 280px; object-fit: contain;
  border-radius: var(--radius-sm); background: var(--bg3);
  border: 1px solid var(--border);
}

/* ─── Stats ──────────────────────────────────────────────────────────────── */
.stats-row {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1rem; margin-bottom: 2rem;
}
.stat-card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.35rem 1.5rem;
  position: relative; overflow: hidden;
}
.stat-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
}
.stat-icon { font-size: 1.1rem; color: var(--accent); margin-bottom: .5rem; }
.stat-num  { font-size: 2.1rem; font-weight: 800; letter-spacing: -.03em; }
.stat-label{ font-size: .75rem; color: var(--text2); margin-top: .2rem; }

/* ─── Inventory grid ─────────────────────────────────────────────────────── */
.inventory-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 1rem;
}
.inventory-card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  cursor: pointer; transition: all .2s;
}
.inventory-card:hover {
  border-color: var(--accent); transform: translateY(-3px);
  box-shadow: 0 12px 36px rgba(79,142,247,.18);
}
.inv-img {
  width: 100%; height: 155px; object-fit: cover;
  display: block; background: var(--bg3);
}
.inv-img-placeholder {
  width: 100%; height: 155px; background: var(--bg3);
  display: flex; align-items: center; justify-content: center; font-size: 2.5rem;
}
.inv-body { padding: .85rem 1rem; }
.inv-name {
  font-weight: 600; font-size: .88rem;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.inv-label { font-size: .73rem; color: var(--text2); margin-top: .15rem; }
.inv-meta  { display: flex; justify-content: space-between; margin-top: .5rem; }
.inv-qty   { font-size: .73rem; font-weight: 700; color: var(--accent); }
.inv-loc   { font-size: .7rem; color: var(--text3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 110px; }

/* ─── Scanner layout ─────────────────────────────────────────────────────── */
.scanner-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.scan-results-card { height: fit-content; }

/* ─── AI results ─────────────────────────────────────────────────────────── */
.ai-badge {
  display: inline-flex; align-items: center; gap: .4rem;
  background: rgba(79,142,247,.12); border: 1px solid rgba(79,142,247,.25);
  color: var(--accent); border-radius: 20px;
  padding: .25rem .8rem; font-size: .72rem; font-weight: 700;
  margin-bottom: 1rem; letter-spacing: .04em;
}
.detection-list { display: flex; flex-direction: column; gap: .4rem; }
.detection-row {
  display: flex; align-items: center; gap: .75rem;
  padding: .5rem .75rem; background: var(--bg3);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
}
.detection-label { font-weight: 600; flex: 1; font-size: .85rem; }
.detection-conf  { font-size: .75rem; color: var(--text2); }
.conf-bar { height: 4px; background: var(--border); border-radius: 2px; flex: 1; max-width: 70px; overflow: hidden; }
.conf-fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent2)); border-radius: 2px; }

.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .5rem; margin-top: .75rem; }
.feature-item {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: .55rem .75rem;
}
.feature-key { font-size: .68rem; color: var(--text3); text-transform: uppercase; letter-spacing: .05em; }
.feature-val { font-size: .85rem; font-weight: 600; margin-top: .15rem; }

.badge { display: inline-block; padding: .15rem .5rem; border-radius: 4px; font-size: .72rem; font-weight: 700; }
.badge-metal    { background: rgba(148,163,184,.12); color: #94a3b8; }
.badge-tool     { background: rgba(245,166,35,.12);  color: var(--warning); }
.badge-electronic { background: rgba(79,142,247,.12); color: var(--accent); }
.badge-plastic  { background: rgba(34,208,122,.12);  color: var(--success); }
.badge-unknown  { background: var(--bg4); color: var(--text2); }

/* ─── Forms ──────────────────────────────────────────────────────────────── */
.section-divider {
  font-size: .72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: .1em; color: var(--text3);
  border-bottom: 1px solid var(--border); padding-bottom: .5rem;
  margin: 1.25rem 0 .75rem;
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .65rem; }
.form-group { display: flex; flex-direction: column; gap: .3rem; }
.form-group.full-width { grid-column: 1 / -1; }
.form-group label { font-size: .75rem; color: var(--text2); font-weight: 600; }
.form-group input, .form-group textarea, .form-group select {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: .55rem .75rem;
  color: var(--text); font-size: .85rem; font-family: inherit;
  transition: border-color .15s, box-shadow .15s;
}
.form-group input:focus, .form-group textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79,142,247,.15);
}
.form-group textarea { resize: vertical; }
.form-hint { font-size: .75rem; color: var(--text3); margin-bottom: .65rem; }
.form-actions { display: flex; gap: .65rem; justify-content: flex-end; margin-top: 1.25rem; }

/* ─── Search layout ──────────────────────────────────────────────────────── */
.search-layout { display: grid; grid-template-columns: 310px 1fr; gap: 1.5rem; align-items: start; }
.search-input-col { position: sticky; top: 2rem; }
.search-controls { margin-top: 1rem; display: flex; flex-direction: column; gap: .65rem; border-top: 1px solid var(--border); padding-top: 1rem; }
.topk-row { display: flex; align-items: center; gap: .6rem; }
.topk-row label { font-size: .75rem; color: var(--text2); font-weight: 600; white-space: nowrap; }
.topk-row input[type=range] { flex: 1; accent-color: var(--accent); }
.topk-val { font-size: .8rem; font-weight: 700; color: var(--accent); min-width: 1.5rem; text-align: right; }

/* ─── Search results ─────────────────────────────────────────────────────── */
.results-placeholder {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; gap: .5rem; min-height: 340px;
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text2);
}
.placeholder-icon { font-size: 3rem; color: var(--border2); }
.placeholder-hint { font-size: .78rem; color: var(--text3); }

.search-results-list { display: flex; flex-direction: column; gap: .75rem; }
.results-header { display: flex; align-items: center; gap: .75rem; margin-bottom: 1rem; }
.results-count { font-size: .82rem; color: var(--text2); }
.results-query-badge {
  display: inline-flex; align-items: center; gap: .3rem;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 20px; padding: .2rem .65rem;
  font-size: .72rem; font-weight: 700; color: var(--text2);
}

.search-result-card {
  display: flex; gap: 1rem; background: var(--bg2);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: .9rem; cursor: pointer; transition: all .18s;
  position: relative; overflow: hidden;
}
.search-result-card::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0;
  width: 3px; border-radius: 3px 0 0 3px;
}
.search-result-card.exact::before        { background: var(--success); }
.search-result-card.very_similar::before { background: var(--accent); }
.search-result-card.similar::before      { background: var(--warning); }
.search-result-card.loosely_related::before { background: var(--text3); }
.search-result-card:hover { border-color: var(--border2); transform: translateX(3px); }

.result-thumb {
  width: 80px; height: 80px; object-fit: cover;
  border-radius: var(--radius-sm); background: var(--bg3); flex-shrink: 0;
}
.result-thumb-placeholder {
  width: 80px; height: 80px; background: var(--bg3);
  border-radius: var(--radius-sm); display: flex;
  align-items: center; justify-content: center; font-size: 2rem; flex-shrink: 0;
  border: 1px solid var(--border);
}
.result-info { flex: 1; min-width: 0; display: flex; flex-direction: column; justify-content: space-between; }
.result-name { font-weight: 700; font-size: .9rem; }
.result-meta { font-size: .75rem; color: var(--text2); margin-top: .2rem; }
.result-score-row { display: flex; align-items: center; gap: .6rem; margin-top: .5rem; }
.score-bar { flex: 1; height: 5px; background: var(--border); border-radius: 3px; overflow: hidden; max-width: 120px; }
.score-fill { height: 100%; border-radius: 3px; transition: width .4s cubic-bezier(.4,0,.2,1); }
.score-fill.exact        { background: var(--success); }
.score-fill.very_similar { background: linear-gradient(90deg, var(--accent), var(--accent2)); }
.score-fill.similar      { background: var(--warning); }
.score-fill.loosely_related { background: var(--text3); }
.score-pct { font-size: .78rem; font-weight: 700; color: var(--text2); }
.match-pill {
  font-size: .67rem; font-weight: 700; padding: .15rem .5rem;
  border-radius: 20px; text-transform: uppercase; letter-spacing: .04em;
}
.match-pill.exact        { background: rgba(34,208,122,.15); color: var(--success); }
.match-pill.very_similar { background: rgba(79,142,247,.15); color: var(--accent); }
.match-pill.similar      { background: rgba(245,166,35,.15);  color: var(--warning); }
.match-pill.loosely_related { background: var(--bg3); color: var(--text3); }

/* ─── Modal ──────────────────────────────────────────────────────────────── */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,.7);
  z-index: 300; display: none; backdrop-filter: blur(4px);
}
.modal-backdrop.open { display: block; }
.modal {
  position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%);
  background: var(--bg2); border: 1px solid var(--border2);
  border-radius: var(--radius); width: min(92vw, 620px);
  max-height: 88vh; overflow-y: auto; z-index: 301; display: none;
  box-shadow: 0 32px 80px rgba(0,0,0,.7);
}
.modal.open { display: block; animation: modalIn .22s ease; }
@keyframes modalIn { from { opacity:0; transform: translate(-50%,-48%); } to { opacity:1; transform: translate(-50%,-50%); } }
.modal-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 1.25rem 1.5rem; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; background: var(--bg2); z-index: 1;
}
.modal-header h2 { font-size: 1rem; font-weight: 700; }
.modal-close {
  background: var(--bg3); border: 1px solid var(--border);
  color: var(--text2); width: 28px; height: 28px;
  border-radius: 50%; cursor: pointer; font-size: .85rem;
  display: flex; align-items: center; justify-content: center;
}
.modal-body { padding: 1.5rem; }
.modal-img {
  width: 100%; max-height: 260px; object-fit: contain;
  border-radius: var(--radius-sm); background: var(--bg3);
  border: 1px solid var(--border); margin-bottom: 1.25rem;
}
.modal-fields { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem 1.5rem; }
.modal-field-key { font-size: .7rem; color: var(--text3); text-transform: uppercase; letter-spacing: .05em; }
.modal-field-val { font-size: .88rem; font-weight: 600; margin-top: .1rem; word-break: break-word; }
.modal-actions {
  display: flex; gap: .65rem; justify-content: flex-end;
  margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid var(--border);
}

/* ─── Loading / empty ────────────────────────────────────────────────────── */
.loading-state {
  display: flex; flex-direction: column; align-items: center;
  gap: .75rem; padding: 2.5rem; color: var(--text2);
}
.spinner {
  width: 30px; height: 30px;
  border: 2.5px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.empty-state {
  display: flex; flex-direction: column; align-items: center;
  gap: .5rem; padding: 3.5rem; color: var(--text2);
  grid-column: 1 / -1;
}

/* ─── Toast ──────────────────────────────────────────────────────────────── */
.toast {
  position: fixed; bottom: 2rem; right: 2rem;
  background: linear-gradient(135deg, #1a3a2a, #1e4530);
  border: 1px solid var(--success); color: var(--success);
  padding: .8rem 1.35rem; border-radius: var(--radius-sm);
  font-weight: 600; font-size: .85rem; z-index: 400;
  opacity: 0; transform: translateY(12px); pointer-events: none;
  transition: opacity .28s, transform .28s;
  box-shadow: 0 8px 28px rgba(34,208,122,.2);
}
.toast.show { opacity: 1; transform: translateY(0); }

/* ─── Light theme ────────────────────────────────────────────────────────── */
[data-theme="light"] {
  --bg:      #f0f4fb;
  --bg2:     #ffffff;
  --bg3:     #e8edf7;
  --bg4:     #dce3f0;
  --border:  #c8d3e8;
  --border2: #b0bdd6;
  --glow:    rgba(79,142,247,.12);
  --text:    #111827;
  --text2:   #4b5a7a;
  --text3:   #8a98b8;
}
[data-theme="light"] .card         { box-shadow: 0 2px 16px rgba(0,0,0,.08); }
[data-theme="light"] .sidebar      { box-shadow: 2px 0 12px rgba(0,0,0,.07); }
[data-theme="light"] .inv-table tr:hover td { background: #edf1fb; }
[data-theme="light"] .pin-card     { background: #fff; box-shadow: 0 24px 60px rgba(0,0,0,.12); }
[data-theme="light"] .pin-key      { background: #f0f4fb; border-color: #c8d3e8; color: #111827; }
[data-theme="light"] .pin-key:hover { background: #dce3f0; }

/* ─── PIN screen ──────────────────────────────────────────────────────────── */
.pin-screen {
  position: fixed; inset: 0; z-index: 1000;
  background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  transition: opacity .35s ease;
}
.pin-screen.unlocking { opacity: 0; pointer-events: none; }

.pin-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 2.5rem 2rem 2rem;
  width: min(340px, 92vw);
  display: flex; flex-direction: column; align-items: center;
  box-shadow: 0 32px 80px rgba(0,0,0,.5);
  animation: fadeIn .3s ease;
}
.pin-logo {
  width: 56px; height: 56px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1rem;
  box-shadow: 0 8px 28px var(--glow);
}
.pin-logo-icon { font-size: 1.6rem; color: #fff; }
.pin-title { font-size: 1.35rem; font-weight: 800; letter-spacing: -.02em; margin-bottom: .25rem; }
.pin-sub   { font-size: .8rem; color: var(--text2); margin-bottom: 1.75rem; }

.pin-dots { display: flex; gap: 1rem; margin-bottom: .75rem; }
.pin-dot {
  width: 14px; height: 14px; border-radius: 50%;
  border: 2px solid var(--border2);
  background: transparent;
  transition: background .15s, border-color .15s, transform .15s;
}
.pin-dot.filled {
  background: var(--accent);
  border-color: var(--accent);
  transform: scale(1.15);
  box-shadow: 0 0 10px var(--glow);
}

.pin-error {
  font-size: .78rem; color: var(--danger); font-weight: 600;
  height: 1.1rem; margin-bottom: 1rem;
  opacity: 0; transition: opacity .2s;
}
.pin-error.visible { opacity: 1; }

.pin-pad {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: .6rem; width: 100%;
}
.pin-key {
  height: 60px; border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg3); color: var(--text);
  font-size: 1.25rem; font-weight: 700; font-family: inherit;
  cursor: pointer; transition: all .12s;
  display: flex; align-items: center; justify-content: center;
}
.pin-key:hover  { background: var(--bg4); border-color: var(--accent); }
.pin-key:active { transform: scale(.93); }
.pin-key-del    { font-size: 1rem; }

@keyframes shake {
  0%,100% { transform: translateX(0); }
  20%     { transform: translateX(-8px); }
  40%     { transform: translateX(8px); }
  60%     { transform: translateX(-6px); }
  80%     { transform: translateX(6px); }
}
.shake { animation: shake .45s ease; }

/* ─── Theme + Lock buttons ────────────────────────────────────────────────── */
.sidebar-bottom-actions {
  display: flex; gap: .5rem; margin-top: .75rem;
}
.theme-btn, .lock-btn {
  flex: 1; padding: .45rem;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text2);
  font-size: .9rem; cursor: pointer; transition: all .15s;
  display: flex; align-items: center; justify-content: center;
}
.theme-btn:hover, .lock-btn:hover {
  background: var(--bg4); color: var(--text); border-color: var(--accent);
}
.topbar-actions .theme-btn { flex: none; padding: .4rem .6rem; }

/* ─── Inventory table ─────────────────────────────────────────────────────── */
.inv-table-wrap { padding: 0; overflow: hidden; }
.inv-table-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 1.25rem; border-bottom: 1px solid var(--border);
}
.inv-table-title { font-weight: 700; font-size: .92rem; }
.sort-row { display: flex; align-items: center; gap: .5rem; font-size: .78rem; color: var(--text2); }
.sort-row select {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 6px; padding: .3rem .6rem;
  color: var(--text); font-size: .78rem; font-family: inherit; cursor: pointer;
}
.inv-table-scroller { overflow-x: auto; }
.inv-table {
  width: 100%; border-collapse: collapse; font-size: .85rem;
}
.inv-table thead th {
  padding: .7rem 1rem; text-align: left;
  font-size: .7rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: .06em; color: var(--text3);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.inv-table tbody tr.inv-row {
  cursor: pointer; transition: background .12s;
}
.inv-table tbody tr.inv-row:hover td { background: var(--bg3); }
.inv-table tbody td {
  padding: .8rem 1rem; border-bottom: 1px solid var(--border);
  color: var(--text2); vertical-align: middle;
}
.inv-table tbody tr:last-child td { border-bottom: none; }
.item-name { font-weight: 600; color: var(--text); font-size: .875rem; }
.label-chip {
  display: inline-block; padding: .18rem .55rem;
  background: rgba(79,142,247,.12); color: var(--accent);
  border-radius: 20px; font-size: .72rem; font-weight: 600;
}
.qty-badge {
  display: inline-block; padding: .15rem .5rem;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 6px; font-weight: 700; font-size: .8rem;
  color: var(--text);
}
.col-qty, .col-date { white-space: nowrap; }
.col-act  { width: 40px; text-align: center; }
.row-del-btn {
  background: none; border: none; cursor: pointer;
  font-size: .9rem; opacity: .35; transition: opacity .15s;
  padding: .2rem .35rem; border-radius: 4px;
}
.row-del-btn:hover { opacity: 1; background: rgba(240,90,90,.12); }
.table-loading {
  text-align: center; padding: 3rem; color: var(--text2);
}
.table-empty {
  text-align: center; padding: 3.5rem; color: var(--text2);
  display: flex; flex-direction: column; align-items: center; gap: .6rem;
}

/* ─── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 960px) {
  .scanner-layout { grid-template-columns: 1fr; }
  .search-layout  { grid-template-columns: 1fr; }
  .search-input-col { position: static; }
}

@media (max-width: 700px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .sidebar-overlay.open { display: block; }
  .topbar { display: flex; }
  .main-content { margin-left: 0; padding: 1rem 1rem; padding-top: calc(var(--topbar-h) + 1rem); }
  .page-header { flex-direction: column; }
  .stats-row { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .modal-fields { grid-template-columns: 1fr; }
  .search-bar input { width: 140px; }
}