:root {
  --ink: #1B2430;
  --paper: #F4F5F7;
  --paper-raised: #FFFFFF;
  --acento: #FFC107;
  --acento-dark: #E0A800;
  --line: #DDE1E6;
  --text-muted: #6B7480;

  --ok: #4C8C6B;
  --ok-bg: #E9F3EE;
  --warn: #E2A83B;
  --warn-bg: #FBF2E2;
  --crit: #C24545;
  --crit-bg: #FBEAEA;

  --font-display: "Space Grotesk", sans-serif;
  --font-body: "Inter", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

.barcode-strip {
  height: 6px;
  background: repeating-linear-gradient(
    90deg,
    var(--ink) 0px, var(--ink) 2px,
    transparent 2px, transparent 5px,
    var(--ink) 5px, var(--ink) 6px,
    transparent 6px, transparent 10px
  );
}

header.topbar {
  background: var(--ink);
  color: white;
  padding: 18px 20px 20px;
}

header.topbar .brand {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

header.topbar .brand .tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: #9AA7B5;
  font-weight: 400;
}

main {
  max-width: 640px;
  margin: 0 auto;
  padding: 20px 16px 80px;
}

h1.page-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin: 4px 0 4px;
}

p.page-sub {
  color: var(--text-muted);
  margin: 0 0 20px;
  font-size: 0.92rem;
}

/* --- Cards de acción (index) --- */
.action-grid {
  display: grid;
  gap: 14px;
}

.action-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 20px;
  text-decoration: none;
  color: var(--ink);
  transition: border-color 0.15s ease, transform 0.1s ease;
}

.action-card:active { transform: scale(0.98); }
.action-card:hover { border-color: var(--steel); }

.action-card .icon {
  font-size: 1.8rem;
  width: 48px;
  text-align: center;
}

.action-card .label {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
}

.action-card .desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* --- Formularios --- */
.field {
  margin-bottom: 16px;
}

.field label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--ink);
}

.field input,
.field select {
  width: 100%;
  padding: 13px 14px;
  border: 1.5px solid var(--line);
  border-radius: 8px;
  font-size: 1rem;
  font-family: var(--font-body);
  background: var(--paper-raised);
}

.field input:focus,
.field select:focus {
  outline: none;
  border-color: var(--steel);
}

.field.mono input { font-family: var(--font-mono); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 14px 18px;
  border-radius: 8px;
  border: none;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.98rem;
  cursor: pointer;
  text-decoration: none;
}

.btn-primary { background: var(--acento); color: var(--ink); }
.btn-primary:active { background: var(--acento-dark); }

.btn-secondary {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--line);
}

.btn-ghost {
  background: transparent;
  color: var(--steel);
  text-decoration: underline;
  padding: 8px;
}

/* --- Scanner --- */
#reader {
  width: 100%;
  border-radius: 10px;
  overflow: hidden;
  border: 2px solid var(--ink);
  background: black;
  aspect-ratio: 4/3;
  object-fit: cover;
  display: block;
}

.scan-result {
  margin-top: 16px;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px;
  display: none;
}

.scan-result.visible { display: block; }

.scan-result .codigo {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.scan-result .nombre {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin: 2px 0 14px;
}

.scan-result .not-found {
  color: var(--crit);
  font-weight: 600;
  font-size: 0.9rem;
}

.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--ink);
  color: white;
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 0.9rem;
  opacity: 0;
  transition: all 0.25s ease;
  pointer-events: none;
  max-width: 90%;
  text-align: center;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast.error { background: var(--crit); }
.toast.success { background: var(--ok); }

/* --- Dashboard --- */
.filter-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 18px;
}

.filter-bar select {
  flex: 1;
  padding: 10px;
  border-radius: 8px;
  border: 1.5px solid var(--line);
  font-family: var(--font-body);
}

.alert-row {
  display: flex;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-bottom: 10px;
  overflow: hidden;
}

.alert-row .stripe { width: 6px; flex-shrink: 0; }
.alert-row.crit .stripe { background: var(--crit); }
.alert-row.warn .stripe { background: var(--warn); }
.alert-row.ok .stripe { background: var(--ok); }

.alert-row .content {
  padding: 12px 14px;
  flex: 1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.alert-row .info .nombre {
  font-weight: 600;
  font-size: 0.95rem;
}

.alert-row .info .meta {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-top: 2px;
}

.alert-row .dias {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 4px 10px;
  border-radius: 20px;
  white-space: nowrap;
}

.alert-row.crit .dias { background: var(--crit-bg); color: var(--crit); }
.alert-row.warn .dias { background: var(--warn-bg); color: var(--warn); }
.alert-row.ok .dias { background: var(--ok-bg); color: var(--ok); }

.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-muted);
}

.empty-state .icon { font-size: 2.2rem; margin-bottom: 8px; }

.report-bar {
  margin-top: 20px;
  display: flex;
  gap: 10px;
}

/* --- Nav links --- */
.navlinks {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  margin-top: 12px;
  padding-bottom: 2px;
  scrollbar-width: none;
}
.navlinks::-webkit-scrollbar { display: none; }

.navlinks a {
  color: #9AA7B5;
  font-size: 0.78rem;
  font-weight: 500;
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 20px;
  white-space: nowrap;
  border: 1px solid transparent;
}

.navlinks a.active {
  background: rgba(255, 255, 255, 0.12);
  color: white;
  border-color: rgba(255, 255, 255, 0.18);
}

/* --- Buscador --- */
.search-box {
  margin-bottom: 16px;
}

.search-box input {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--line);
  border-radius: 8px;
  font-size: 0.95rem;
  background: var(--paper-raised);
}

.search-box input:focus {
  outline: none;
  border-color: var(--steel);
}

/* --- Lista de productos --- */
.prod-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px;
  margin-bottom: 10px;
}

.prod-row .info .nombre {
  font-weight: 600;
  font-size: 0.95rem;
}

.prod-row .info .meta {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-top: 2px;
}

.prod-row .btn-add {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: var(--steel);
  color: white;
  font-size: 1.3rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.prod-row .btn-add:active { background: var(--steel-dark); }

/* --- Modal de conteo rápido --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(27, 36, 48, 0.55);
  display: none;
  align-items: flex-end;
  justify-content: center;
  z-index: 100;
}

.modal-overlay.visible { display: flex; }

.modal-sheet {
  background: var(--paper-raised);
  width: 100%;
  max-width: 640px;
  border-radius: 16px 16px 0 0;
  padding: 22px 20px 26px;
  animation: slideUp 0.2s ease;
}

@keyframes slideUp {
  from { transform: translateY(30px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.modal-sheet .modal-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.modal-sheet .modal-sub {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-bottom: 16px;
}

.modal-actions {
  display: flex;
  gap: 10px;
  margin-top: 4px;
}

.row-actions {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 10px 12px;
  border-left: 1px solid var(--line);
}

.btn-mini {
  font-size: 0.72rem;
  padding: 5px 10px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--paper-raised);
  cursor: pointer;
  white-space: nowrap;
}

.btn-cero:active { background: var(--ok-bg); border-color: var(--ok); }
.btn-eliminar:active { background: var(--crit-bg); border-color: var(--crit); }

.retiro-badge {
  margin-top: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--crit);
}


.section-label {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.lote-card {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px;
  margin-bottom: 12px;
}

.lote-card .field {
  margin-bottom: 10px;
}

.lote-card .field label {
  font-size: 0.75rem;
  margin-bottom: 4px;
}

.lote-card .field input,
.lote-card .field select {
  padding: 9px 10px;
  font-size: 0.9rem;
}

.lote-actions {
  display: flex;
  gap: 8px;
  margin-top: 4px;
}

.lote-actions .btn-mini {
  flex: 1;
  padding: 8px;
  font-size: 0.8rem;
}

/* --- Card de producto (solo lectura) --- */
.info-card {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px;
}

.info-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.info-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  font-size: 0.88rem;
  border-bottom: 1px solid var(--paper);
}

.info-row:last-child { border-bottom: none; }

.info-row span:first-child {
  color: var(--text-muted);
  font-weight: 500;
}

.info-row span:last-child {
  text-align: right;
  font-weight: 500;
}

/* --- Header de sección con acción --- */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

/* --- Filas compactas de lote (reutiliza el patrón de alert-row) --- */
.lote-row {
  display: flex;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-bottom: 8px;
  overflow: hidden;
}

.lote-row .stripe { width: 5px; flex-shrink: 0; }
.lote-row.crit .stripe { background: var(--crit); }
.lote-row.warn .stripe { background: var(--warn); }
.lote-row.ok .stripe { background: var(--ok); }

.lote-row .content {
  padding: 10px 12px;
  flex: 1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.lote-row .info .nombre {
  font-weight: 600;
  font-size: 0.88rem;
}

.lote-row .info .meta {
  font-size: 0.76rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-top: 2px;
}