:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface-2: #22262f;
  --surface-hover: #282d3a;
  --border: rgba(255,255,255,0.07);
  --border-focus: #5b8def;
  --primary: #5b8def;
  --primary-hover: #4a7de0;
  --primary-soft: rgba(91,141,239,0.12);
  --accent: #e94560;
  --text: #e8eaed;
  --text-2: #9aa0a6;
  --text-3: #5f6368;
  --success: #34d399;
  --success-soft: rgba(52,211,153,0.12);
  --warning: #fbbf24;
  --warning-soft: rgba(251,191,36,0.12);
  --danger: #f87171;
  --danger-soft: rgba(248,113,113,0.12);
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 2px 8px rgba(0,0,0,0.3);
  --transition: 0.15s ease;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Header ─────────────────────────────────────── */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: max(14px, env(safe-area-inset-top)) 20px 10px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.header h1 {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.3px;
  flex: 1;
  min-width: 0;
}
.header .user-area {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.header .user {
  font-size: 12px;
  color: var(--text-2);
  background: var(--surface-2);
  padding: 4px 10px;
  border-radius: 20px;
}

/* ── Main Content ───────────────────────────────── */
.main {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
  padding-top: 10px;
  padding-bottom: 90px;
}

/* ── Cards ──────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 12px;
  box-shadow: var(--shadow);
}
.card-flush { padding: 0; overflow: hidden; }
.card h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}
.card .meta {
  font-size: 12px;
  color: var(--text-2);
  line-height: 1.5;
}
.card-hero {
  text-align: center;
  padding: 24px 16px;
}
.card-hero .item-name {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 4px;
  letter-spacing: -0.3px;
}
.card-hero .item-meta {
  font-size: 13px;
  color: var(--text-2);
}
.card-hero .stock-big {
  font-size: 36px;
  font-weight: 800;
  margin: 12px 0 4px;
  letter-spacing: -1px;
}
.card-hero .stock-big.low { color: var(--warning); }
.card-hero .stock-big.critical { color: var(--danger); }

/* ── Buttons ────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.1s, opacity var(--transition), background var(--transition);
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover:not(:disabled) { background: var(--primary-hover); }
.btn-success { background: var(--success); color: #0f1117; }
.btn-danger { background: var(--danger); color: white; }
.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-outline:hover:not(:disabled) { background: var(--surface-hover); }
.btn-ghost {
  background: transparent;
  border: none;
  color: var(--text-2);
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 500;
}
.btn-ghost:hover { color: var(--text); }
.btn-full { width: 100%; }
.btn-sm { padding: 8px 14px; font-size: 13px; border-radius: 8px; }
.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: 12px;
  font-size: 18px;
}

/* Action button grid */
.action-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.action-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 18px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), transform 0.1s;
  -webkit-tap-highlight-color: transparent;
}
.action-btn:active { transform: scale(0.97); }
.action-btn:hover { background: var(--surface-hover); border-color: rgba(255,255,255,0.12); }
.action-btn .action-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}
.action-btn .action-icon.receive { background: var(--success-soft); color: var(--success); }
.action-btn .action-icon.consume { background: var(--danger-soft); color: var(--danger); }
.action-btn .action-icon.move { background: var(--primary-soft); color: var(--primary); }
.action-btn .action-icon.count { background: var(--warning-soft); color: var(--warning); }

/* ── Scanner Overlay ────────────────────────────── */
.scanner-overlay {
  position: fixed;
  inset: 0;
  background: black;
  z-index: 100;
  display: none;
  flex-direction: column;
}
.scanner-overlay.active { display: flex; }
.scanner-overlay video {
  flex: 1;
  object-fit: cover;
}
.scanner-viewfinder {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 240px;
  height: 240px;
  pointer-events: none;
}
.scanner-viewfinder::before {
  content: '';
  position: absolute;
  inset: 0;
  border: 2px solid rgba(255,255,255,0.5);
  border-radius: 20px;
}
.scanner-corner {
  position: absolute;
  width: 28px;
  height: 28px;
  border-color: var(--primary);
  border-style: solid;
  border-width: 0;
}
.scanner-corner.tl { top: -1px; left: -1px; border-top-width: 4px; border-left-width: 4px; border-top-left-radius: 20px; }
.scanner-corner.tr { top: -1px; right: -1px; border-top-width: 4px; border-right-width: 4px; border-top-right-radius: 20px; }
.scanner-corner.bl { bottom: -1px; left: -1px; border-bottom-width: 4px; border-left-width: 4px; border-bottom-left-radius: 20px; }
.scanner-corner.br { bottom: -1px; right: -1px; border-bottom-width: 4px; border-right-width: 4px; border-bottom-right-radius: 20px; }
.scanner-hint {
  position: absolute;
  bottom: -40px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  white-space: nowrap;
}
.scanner-controls {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px;
  padding-bottom: max(20px, env(safe-area-inset-bottom));
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  background: linear-gradient(transparent, rgba(0,0,0,0.7));
}

/* ── Bottom Nav ─────────────────────────────────── */
.nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 6px 0 2px;
  padding-bottom: max(6px, env(safe-area-inset-bottom));
  z-index: 10;
}
.nav button {
  flex: 1;
  background: none;
  border: none;
  color: var(--text-3);
  font-size: 10px;
  font-weight: 500;
  padding: 4px 0;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  transition: color var(--transition);
  -webkit-tap-highlight-color: transparent;
}
.nav button.active { color: var(--primary); }
.nav button .nav-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.nav button .nav-icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ── List Items ─────────────────────────────────── */
.list-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background var(--transition);
  -webkit-tap-highlight-color: transparent;
}
.list-item:last-child { border-bottom: none; }
.list-item:active { background: var(--surface-hover); }
.list-item .name {
  font-size: 15px;
  font-weight: 500;
  margin-bottom: 2px;
}
.list-item .detail {
  font-size: 12px;
  color: var(--text-2);
}
.list-item .chevron {
  color: var(--text-3);
  margin-left: 8px;
  flex-shrink: 0;
}

/* ── Badges ─────────────────────────────────────── */
.badge {
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
  letter-spacing: -0.2px;
}
.badge-low { background: var(--warning-soft); color: var(--warning); }
.badge-ok { background: var(--success-soft); color: var(--success); }
.badge-danger { background: var(--danger-soft); color: var(--danger); }
.badge-info { background: var(--primary-soft); color: var(--primary); }

/* ── Form Elements ──────────────────────────────── */
label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}

input, select, textarea {
  width: 100%;
  padding: 12px 14px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 16px;
  font-family: inherit;
  margin-bottom: 14px;
  transition: border-color var(--transition), box-shadow var(--transition);
  -webkit-appearance: none;
  appearance: none;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--primary-soft);
}
input::placeholder, textarea::placeholder { color: var(--text-3); }

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%239aa0a6' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

/* Quantity stepper */
.qty-stepper {
  display: flex;
  align-items: center;
  gap: 0;
  margin-bottom: 14px;
}
.qty-stepper button {
  width: 48px;
  height: 48px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 20px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
  -webkit-tap-highlight-color: transparent;
}
.qty-stepper button:first-child { border-radius: var(--radius-sm) 0 0 var(--radius-sm); }
.qty-stepper button:last-child { border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.qty-stepper button:active { background: var(--surface-hover); }
.qty-stepper input {
  width: 72px;
  text-align: center;
  border-radius: 0;
  border-left: none;
  border-right: none;
  margin-bottom: 0;
  font-weight: 700;
  font-size: 18px;
  height: 48px;
  padding: 0;
}
.qty-stepper input:focus { box-shadow: none; border-color: var(--border); }

/* Quick quantity pills */
.qty-pills {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.qty-pill {
  padding: 8px 16px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text-2);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  -webkit-tap-highlight-color: transparent;
}
.qty-pill:active, .qty-pill.active {
  background: var(--primary-soft);
  border-color: var(--primary);
  color: var(--primary);
}

/* ── Toast ──────────────────────────────────────── */
.toast {
  position: fixed;
  top: calc(env(safe-area-inset-top) + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(-100px);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 500;
  z-index: 200;
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  pointer-events: none;
  max-width: 90vw;
  text-align: center;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}
.toast.toast-error { border-color: var(--danger); background: var(--danger-soft); }
.toast.toast-success { border-color: var(--success); background: var(--success-soft); }

/* ── Login Screen ───────────────────────────────── */
.login {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  padding: 32px;
  background: var(--bg);
}
.login-logo {
  width: 64px;
  height: 64px;
  background: var(--primary-soft);
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 16px;
}
.login h1 {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 4px;
}
.login p {
  color: var(--text-2);
  font-size: 14px;
  margin-bottom: 32px;
}
.login form { width: 100%; max-width: 320px; }

/* ── Loading / Empty ────────────────────────────── */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  color: var(--text-2);
  font-size: 14px;
  gap: 8px;
}
.loading::before {
  content: '';
  width: 18px;
  height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-2);
  font-size: 14px;
}
.empty-state .empty-icon {
  font-size: 32px;
  margin-bottom: 12px;
  opacity: 0.5;
}

/* ── Section headers ────────────────────────────── */
.section-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin: 20px 0 10px;
}
.section-label:first-child { margin-top: 0; }

/* ── Search bar ─────────────────────────────────── */
.search-wrap {
  position: relative;
  margin-bottom: 14px;
}
.search-wrap input {
  padding-left: 40px;
  margin-bottom: 0;
}
.search-wrap .search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-3);
  pointer-events: none;
  width: 16px;
  height: 16px;
}

/* ── Inline actions row ─────────────────────────── */
.inline-actions {
  display: flex;
  gap: 8px;
}
.inline-actions .btn { flex: 1; }

/* ── Scan tab hero ──────────────────────────────── */
.scan-hero {
  text-align: center;
  padding: 20px 0;
}
.scan-btn {
  width: 100%;
  padding: 20px;
  font-size: 17px;
  font-weight: 700;
  border-radius: var(--radius);
  background: var(--primary);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: background var(--transition), transform 0.1s;
  -webkit-tap-highlight-color: transparent;
}
.scan-btn:active { transform: scale(0.98); }
.scan-btn:hover { background: var(--primary-hover); }
.scan-btn svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}
.scan-hint {
  margin-top: 10px;
  color: var(--text-3);
  font-size: 13px;
}

/* ── Recent items ───────────────────────────────── */
.recent-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  margin: 0 6px 6px 0;
  transition: background var(--transition);
  -webkit-tap-highlight-color: transparent;
}
.recent-chip:active { background: var(--surface-hover); }

/* ── Divider ────────────────────────────────────── */
.divider {
  height: 1px;
  background: var(--border);
  margin: 16px 0;
}

/* ── Transaction type indicator ─────────────────── */
.txn-type {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}
.txn-type.receive { background: var(--success-soft); color: var(--success); }
.txn-type.consume { background: var(--danger-soft); color: var(--danger); }
.txn-type.move { background: var(--primary-soft); color: var(--primary); }
.txn-type.count, .txn-type.adjust { background: var(--warning-soft); color: var(--warning); }

/* ── Back button ────────────────────────────────── */
.back-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}
.back-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  color: var(--primary);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  padding: 4px 0;
  -webkit-tap-highlight-color: transparent;
}
.back-btn svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}

/* ── Camera-Assisted Onboarding ────────────────── */
.onboard-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.photo-preview-wrap {
  text-align: center;
}
.photo-thumb {
  max-width: 100%;
  max-height: 200px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  object-fit: contain;
}

/* ── OCR ───────────────────────────────────────── */
.ocr-spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: ocrSpin 0.8s linear infinite;
  flex-shrink: 0;
}
@keyframes ocrSpin {
  to { transform: rotate(360deg); }
}
.ocr-chip {
  display: inline-block;
  padding: 3px 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 11px;
  color: var(--text-1);
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ── Animations ─────────────────────────────────── */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeIn 0.2s ease; }

@media (max-width: 640px) {
  .header {
    align-items: flex-start;
  }

  .header .user-area {
    gap: 6px;
  }

  .header .user {
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
}