:root {
  /* Palette (names kept stable — JS references some of these directly) */
  --bg-dark: #0a0f1c;
  --bg-card: #131c30;
  --bg-header: #1c2840;
  --text-primary: #eef2f9;
  --text-secondary: #93a1b8;
  --accent-blue: #4f7cff;
  --accent-hover: #3b66e6;
  --border-color: #24314d;
  --success: #34d399;
  --danger: #f87171;

  /* Extended design tokens */
  --brand-2: #7c5cff;
  --surface-2: #1b2740;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 12px 28px -14px rgba(0, 0, 0, 0.55);
  --shadow-lg: 0 28px 60px -20px rgba(0, 0, 0, 0.7);
  --ring: color-mix(in srgb, var(--accent-blue) 45%, transparent);

  /* Sticky layout heights */
  --header-h: 64px;
  --controls-h: 60px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--text-primary);
  line-height: 1.5;
  /* clip (not hidden) avoids creating a scroll container, so position:sticky
     keeps working relative to the viewport */
  overflow-x: clip;
  background-color: var(--bg-dark);
  background-image:
    radial-gradient(900px circle at 12% -10%, color-mix(in srgb, var(--accent-blue) 14%, transparent), transparent 55%),
    radial-gradient(800px circle at 100% 0%, color-mix(in srgb, var(--brand-2) 12%, transparent), transparent 50%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
}

#app {
  width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: clip;
}

/* Custom scrollbars */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--surface-2) transparent;
}

*::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

*::-webkit-scrollbar-thumb {
  background: var(--surface-2);
  border-radius: 999px;
  border: 2px solid transparent;
  background-clip: padding-box;
}

*::-webkit-scrollbar-thumb:hover {
  background: var(--border-color);
  background-clip: padding-box;
}

/* Utilities */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1.25rem;
  width: 100%;
}

/* Buttons */
.btn {
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: var(--surface-2);
  color: var(--text-primary);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.01em;
  transition: transform 0.12s ease, background-color 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  background: color-mix(in srgb, var(--surface-2) 70%, var(--text-primary) 8%);
}

.btn:active {
  transform: translateY(1px);
}

.btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--ring);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-blue), var(--brand-2));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 8px 18px -8px color-mix(in srgb, var(--accent-blue) 80%, transparent);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--accent-hover), color-mix(in srgb, var(--brand-2) 85%, #000));
  box-shadow: 0 10px 22px -8px color-mix(in srgb, var(--accent-blue) 90%, transparent);
}

.btn-sm {
  padding: 0.35rem 0.7rem;
  font-size: 0.78rem;
}

.btn-block {
  width: 100%;
  display: block;
}

.btn-view {
  background: color-mix(in srgb, var(--success) 16%, transparent);
  color: var(--success);
}

.btn-clone {
  background: color-mix(in srgb, var(--brand-2) 18%, transparent);
  color: color-mix(in srgb, var(--brand-2) 70%, #fff);
}

.btn-danger {
  background: color-mix(in srgb, var(--danger) 16%, transparent);
  color: var(--danger);
}

.btn-danger:hover {
  background: color-mix(in srgb, var(--danger) 28%, transparent);
}

/* Stock badges (inventory) */
.stock-badge {
  display: inline-block;
  min-width: 2.2rem;
  text-align: center;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.85rem;
}

.stock-ok {
  background: color-mix(in srgb, var(--success) 16%, transparent);
  color: var(--success);
}

.stock-low {
  background: color-mix(in srgb, var(--danger) 18%, transparent);
  color: var(--danger);
}

.product-location {
  margin-bottom: 0.6rem;
}

.location-badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.85rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  background: color-mix(in srgb, var(--accent, #3b82f6) 14%, transparent);
  color: var(--accent, #3b82f6);
  letter-spacing: 0.02em;
}

.btn-icon-danger {
  background: none;
  border: none;
  color: var(--danger);
  cursor: pointer;
  font-size: 1.2rem;
  line-height: 1;
  border-radius: 6px;
  width: 28px;
  height: 28px;
  transition: background-color 0.2s ease;
}

.btn-icon-danger:hover {
  background: color-mix(in srgb, var(--danger) 18%, transparent);
}

/* Inputs */
.input-field {
  background-color: var(--bg-dark);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-sm);
  width: 100%;
  max-width: 100%;
  font-size: 0.95rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.input-field::placeholder {
  color: color-mix(in srgb, var(--text-secondary) 80%, transparent);
}

.input-field:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px var(--ring);
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(2, 6, 20, 0.7);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  backdrop-filter: blur(6px);
  padding: 1rem;
}

.modal {
  background-color: var(--bg-card);
  padding: 2rem;
  border-radius: var(--radius);
  width: 100%;
  max-width: 540px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  max-height: 88vh;
  overflow-y: auto;
  position: relative;
  animation: modalFadeIn 0.2s ease-out;
}

.modal-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.modal-form .form-row {
  display: flex;
  gap: 1rem;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

@media (max-width: 560px) {
  .modal-form .form-row {
    flex-direction: column;
    gap: 0;
  }
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
    transform: translateY(-16px) scale(0.98);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Login */
.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 1.5rem;
}

.login-card {
  background-color: color-mix(in srgb, var(--bg-card) 92%, transparent);
  backdrop-filter: blur(8px);
  padding: 2.5rem;
  border-radius: var(--radius);
  width: 100%;
  max-width: 410px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
}

.login-title {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 1.75rem;
  text-align: center;
  background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.form-group {
  margin-bottom: 1.1rem;
  flex: 1;
}

.form-label {
  display: block;
  margin-bottom: 0.45rem;
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 500;
}

/* Sticky top app bar (full-bleed even though it lives inside .container) */
.dashboard-header {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100vw;
  margin-left: calc(50% - 50vw);
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  background: color-mix(in srgb, var(--bg-card) 78%, transparent);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--border-color);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  width: 100%;
}

.logo {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  white-space: nowrap;
  background: linear-gradient(135deg, var(--accent-blue), var(--brand-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.admin-nav {
  display: flex;
  gap: 0.5rem;
  flex: 1;
  justify-content: center;
  overflow-x: auto;
  scrollbar-width: none;
}

.admin-nav::-webkit-scrollbar {
  display: none;
}

.nav-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  padding: 0.5rem 0.95rem;
  border-radius: 999px;
  white-space: nowrap;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.nav-btn:hover {
  color: var(--text-primary);
  background: color-mix(in srgb, var(--text-primary) 7%, transparent);
}

.nav-btn.active {
  background: color-mix(in srgb, var(--accent-blue) 16%, transparent);
  color: color-mix(in srgb, var(--accent-blue) 80%, #fff);
}

/* Spacing between the sticky header and whatever content follows it */
.dashboard-header+* {
  margin-top: 1.75rem;
}

/* Mobile header: the logo + nav + Salir don't fit on one row, so the nav
   drops to its own full-width (scrollable) second row. --header-h is bumped to
   the two-row height so the sticky toolbar/table below keep their offsets. */
@media (max-width: 640px) {
  :root {
    --header-h: 96px;
  }

  .header-content {
    flex-wrap: wrap;
    align-content: center;
    height: var(--header-h);
    gap: 0.45rem 0.75rem;
  }

  .logo {
    font-size: 1.05rem;
  }

  .admin-nav {
    order: 3;
    flex: 1 0 100%;
    justify-content: flex-start;
    gap: 0.4rem;
  }

  .nav-btn {
    font-size: 0.82rem;
    padding: 0.45rem 0.8rem;
  }
}

/* Controls / toolbar (search + category) — sticky just under the header */
.controls-section {
  position: sticky;
  top: var(--header-h);
  z-index: 60;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  background-color: var(--bg-dark);
  padding-block: 0.85rem;
}

@media (min-width: 768px) {
  .controls-section {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.controls-left {
  display: flex;
  gap: 0.75rem;
  flex: 1;
  min-width: 0;
}

@media (max-width: 768px) {
  /* En móvil la barra de búsqueda/categoría deja de ser fija: pegada ocupaba
     ~270px de pantalla (con el botón "+ Nuevo Producto") al hacer scroll. */
  .controls-section {
    position: static;
  }

  .controls-left {
    flex-direction: column;
  }

  .category-select {
    min-width: 0;
    width: 100%;
  }
}

.search-box {
  flex: 1;
  min-width: 0;
  font-size: 0.95rem;
}

.category-select {
  background-color: var(--bg-dark);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 0.6rem 2.25rem 0.6rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  cursor: pointer;
  min-width: 210px;
  max-width: 100%;
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--text-secondary) 50%), linear-gradient(135deg, var(--text-secondary) 50%, transparent 50%);
  background-position: calc(100% - 18px) center, calc(100% - 13px) center;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.category-select:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px var(--ring);
}

/* Table */
.table-container {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  /* clip rounds the corners without creating a scroll container,
     so the sticky <thead> can pin to the viewport */
  overflow: clip;
}

.product-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  min-width: 760px;
}

.product-table th {
  position: sticky;
  top: var(--header-h);
  z-index: 20;
  background-color: var(--bg-header);
  padding: 0.9rem 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  box-shadow: inset 0 -1px 0 var(--border-color);
}

/* When a sticky controls bar sits above the table (Inventory), drop the
   sticky header further so it pins right below the toolbar instead of overlapping it */
.controls-section~.table-container .product-table th {
  top: calc(var(--header-h) + var(--controls-h));
}

.product-table td {
  padding: 0.8rem 1rem;
  border-bottom: 1px solid color-mix(in srgb, var(--border-color) 60%, transparent);
  vertical-align: middle;
}

.product-table tbody tr {
  transition: background-color 0.15s ease;
}

.product-table tbody tr:hover {
  background-color: color-mix(in srgb, var(--accent-blue) 7%, transparent);
}

.product-table tbody tr:last-child td {
  border-bottom: none;
}

/* Mobile: collapse table rows into cards (kept above 768 desktop table width) */
@media (max-width: 860px) {

  .product-table {
    min-width: 0;
  }

  .product-table thead {
    display: none;
  }

  .product-table,
  .product-table tbody,
  .product-table tr,
  .product-table td {
    display: block;
    width: 100%;
  }

  .table-container {
    background: transparent;
    border: none;
    overflow: visible;
  }

  .product-table tr {
    margin-bottom: 0.9rem;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 0.4rem 0.9rem;
    box-shadow: var(--shadow);
  }

  .product-table td {
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: right;
    padding: 0.6rem 0;
    border-bottom: 1px solid color-mix(in srgb, var(--border-color) 55%, transparent);
  }

  .product-table td:last-child {
    border-bottom: none;
  }

  .product-table td::before {
    content: attr(data-label);
    font-weight: 600;
    color: var(--text-secondary);
    text-align: left;
    margin-right: 1rem;
    font-size: 0.8rem;
  }

  .product-table td:first-child {
    justify-content: center;
  }

  .product-table td:first-child::before {
    display: none;
  }
}

/* Mobile detail/line-item tables + action cells (fixes label-less cells and
   clipped action buttons inside the collapsed cards). */
@media (max-width: 860px) {
  /* La tabla de detalle del historial vive anidada dentro de una celda
     .product-table; asegúrate de que ocupe todo el ancho como bloque. */
  .sale-detail-table {
    display: block;
    width: 100%;
  }

  /* En tablas de ítems la 1ª columna es un nombre (no un número de fila): que
     quede etiquetada y alineada como el resto, no centrada sin etiqueta. */
  .sale-detail-table td:first-child,
  .product-table.detail-items td:first-child {
    justify-content: space-between;
    text-align: right;
  }

  .sale-detail-table td:first-child::before,
  .product-table.detail-items td:first-child::before {
    display: block;
  }

  /* Botones de acción: que envuelvan en vez de salirse de la tarjeta. */
  .product-table td[data-label="Acciones"] {
    flex-wrap: wrap;
    gap: 0.4rem;
  }

  .product-table td[data-label="Acciones"]::before {
    margin-right: auto;
  }

  /* Objetivos táctiles algo más grandes para los +/- del carrito. */
  .qty-btn {
    width: 32px;
    height: 32px;
  }
}

/* POS / budget editor layout */
.pos-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  height: calc(100vh - var(--header-h) - 3rem);
}

@media (min-width: 1024px) {
  .pos-container {
    grid-template-columns: 2fr 1fr;
  }
}

/* Below the 2-column desktop layout: the grid + cart must NOT be trapped inside
   one viewport-height (that made the cart overlap/clip the products). Let the
   POS grow naturally and the whole page scroll; the cart stacks under the grid. */
@media (max-width: 1023px) {
  .pos-container {
    height: auto;
  }

  .pos-left-panel {
    overflow: visible;
  }

  .pos-grid {
    overflow-y: visible;
  }

  .pos-right-panel {
    height: auto;
  }
}

/* Floating cart button — only on mobile/tablet (hidden on desktop, where the
   cart panel is always visible on the right). */
.cart-fab {
  position: fixed;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  z-index: 200;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.95rem 1.25rem;
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent-blue), var(--brand-2));
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  box-shadow: var(--shadow-lg);
  cursor: pointer;
}

@media (min-width: 1024px) {
  .cart-fab {
    display: none !important;
  }
}

/* Cabecera del carrito/hoja + botón de cierre (el cierre solo aparece en móvil) */
.pos-cart-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.pos-sheet-close,
.pos-backdrop {
  display: none;
}

/* Móvil/tablet: el panel del carrito (POS y editor de presupuesto) es una hoja
   inferior que se abre con el FAB, en vez de vivir muy por debajo de la grilla. */
@media (max-width: 1023px) {
  .pos-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 240;
    background: rgba(2, 6, 20, 0.6);
    backdrop-filter: blur(2px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
  }

  .pos-container.cart-open .pos-backdrop {
    opacity: 1;
    pointer-events: auto;
  }

  .pos-right-panel {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 250;
    height: auto;
    max-height: 85vh;
    border-radius: var(--radius) var(--radius) 0 0;
    transform: translateY(110%);
    transition: transform 0.3s ease;
  }

  .pos-container.cart-open .pos-right-panel {
    transform: translateY(0);
  }

  .pos-sheet-close {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: none;
    width: 2rem;
    height: 2rem;
    font-size: 1.5rem;
    line-height: 1;
    border: none;
    border-radius: 50%;
    background: var(--surface-2);
    color: var(--text-secondary);
    cursor: pointer;
  }

  .pos-sheet-close:hover {
    color: var(--text-primary);
  }
}

.pos-left-panel {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-height: 0;
}

/* Inside the POS the panel scrolls internally, so its toolbar must not be sticky */
.pos-left-panel .controls-section {
  position: static;
  background: transparent;
  padding-block: 0;
  margin-bottom: 1rem;
}

.pos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 1rem;
  overflow-y: auto;
  padding-right: 0.25rem;
  padding-bottom: 1rem;
  min-height: 0;
}

.pos-product-card {
  position: relative;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1rem;
  cursor: pointer;
  transition: border-color 0.2s ease, transform 0.12s ease, box-shadow 0.2s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  /* Altura fija para que todas las tarjetas queden alineadas como en un POS;
     el título se acota a 2 líneas (ver .pos-card-title) y nada se sale del cuadro. */
  height: 150px;
  overflow: hidden;
}

/* Botón "ojo" para ver la foto del producto (esquina superior derecha) */
.pos-card-eye {
  position: absolute;
  top: 0.4rem;
  right: 0.4rem;
  z-index: 2;
  width: 1.9rem;
  height: 1.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  font-size: 0.95rem;
  line-height: 1;
  border: 1px solid var(--border-color);
  border-radius: 50%;
  background-color: color-mix(in srgb, var(--bg-card) 70%, transparent);
  cursor: pointer;
  opacity: 0.7;
  transition: opacity 0.15s ease, border-color 0.15s ease, transform 0.12s ease;
}

.pos-card-eye:hover {
  opacity: 1;
  border-color: var(--accent-blue);
  transform: scale(1.1);
}

.pos-product-card:hover {
  border-color: var(--accent-blue);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.pos-card-title {
  font-weight: 600;
  font-size: 0.85rem;
  line-height: 1.25;
  margin-bottom: 0.25rem;
  padding-right: 1.6rem; /* deja espacio para el botón ojo de la esquina */
  /* Acota el nombre a 2 líneas con '…' para no romper la altura de la tarjeta */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.pos-card-stock {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.pos-card-price {
  font-weight: 700;
  color: var(--success);
  font-size: 1.1rem;
}

.pos-card-meta {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin: 0.15rem 0 0.4rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pos-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-top: auto;
}

/* POS cart */
.pos-right-panel {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
  box-shadow: var(--shadow);
}

/* Contador de ítems sobre la lista del carrito/presupuesto */
.cart-items-counter {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.6rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

.cart-items {
  flex: 1;
  overflow-y: auto;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
  min-height: 0;
}

/* Número de orden de cada ítem dentro del carrito/presupuesto */
.cart-item-num {
  color: var(--accent-blue);
  font-weight: 700;
  margin-right: 0.15rem;
}

.cart-item {
  padding: 0.8rem 0;
  border-bottom: 1px solid color-mix(in srgb, var(--border-color) 60%, transparent);
}

.cart-item:last-child {
  border-bottom: none;
}

.cart-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.cart-item-name {
  font-weight: 600;
  font-size: 0.9rem;
}

.cart-item-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  flex-wrap: wrap;
}

.control-group {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--text-secondary);
}

.qty-btn {
  background-color: var(--bg-dark);
  color: var(--text-primary);
  width: 26px;
  height: 26px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.qty-btn:hover {
  border-color: var(--accent-blue);
  background-color: var(--surface-2);
}

.cart-item-total {
  font-weight: 700;
  color: var(--text-primary);
}

.cart-summary {
  padding-top: 1rem;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 1rem;
  font-size: 1.05rem;
  font-weight: 600;
}

.summary-row.total {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--accent-blue);
}

/* Catalog grid (buyer view) */
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.5rem;
  padding-bottom: 2rem;
}

.product-card-visual {
  background-color: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.product-card-visual:hover {
  transform: translateY(-5px);
  border-color: var(--accent-blue);
  box-shadow: var(--shadow-lg);
}

.product-image-container {
  width: 100%;
  height: 200px;
  background-color: #05080f;
  position: relative;
  overflow: hidden;
}

.product-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.product-card-visual:hover .product-image {
  transform: scale(1.06);
}

.product-badge {
  position: absolute;
  top: 0.6rem;
  right: 0.6rem;
  background-color: rgba(5, 8, 15, 0.7);
  backdrop-filter: blur(4px);
  color: #fff;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
}

.product-info {
  padding: 1.1rem;
}

.product-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.product-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.product-price-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.price {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--success);
}

/* --- Historial de Ventas --- */
.sales-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.sales-stat-card {
  flex: 1 1 180px;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
}

.sales-stat-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.sales-stat-value {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--accent-blue);
  line-height: 1.1;
}

.sales-stat-sub {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--success);
}

/* Fila y tabla de detalle expandible dentro del historial */
.sale-detail-row > td {
  background-color: color-mix(in srgb, var(--accent-blue) 6%, transparent);
  padding: 0.5rem 1rem 1rem;
}

.sale-detail-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.sale-detail-table th {
  text-align: left;
  color: var(--text-secondary);
  font-weight: 600;
  padding: 0.35rem 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

.sale-detail-table td {
  padding: 0.35rem 0.5rem;
  border-bottom: 1px solid color-mix(in srgb, var(--border-color) 50%, transparent);
}

/* --- Lightbox de foto de producto (POS) --- */
.image-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background-color: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(2px);
}

.image-modal {
  position: relative;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1rem;
  max-width: min(92vw, 560px);
  max-height: 90vh;
  overflow: auto;
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.image-modal-stage {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.image-modal-img {
  max-width: 100%;
  max-height: 65vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
  background-color: var(--bg-dark, #0f172a);
}

.image-modal-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 2.4rem;
  height: 2.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  line-height: 1;
  border: none;
  border-radius: 50%;
  background-color: rgba(0, 0, 0, 0.5);
  color: #fff;
  cursor: pointer;
}

.image-modal-nav:hover { background-color: rgba(0, 0, 0, 0.75); }
.image-modal-nav.prev { left: 0.4rem; }
.image-modal-nav.next { right: 0.4rem; }

.image-modal-counter {
  margin-top: 0.4rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Indicador "📷 N" sobre la miniatura del listado de Inventario */
.inv-thumb-wrap {
  position: relative;
  display: inline-block;
  line-height: 0;
}

.inv-thumb-count {
  position: absolute;
  bottom: 2px;
  right: 2px;
  padding: 0 0.3rem;
  font-size: 0.65rem;
  line-height: 1.3;
  border-radius: 999px;
  background-color: rgba(0, 0, 0, 0.7);
  color: #fff;
  pointer-events: none;
}

/* Tira de miniaturas en el formulario de Inventario */
.img-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
}

.img-thumb {
  position: relative;
  width: 64px;
  height: 64px;
}

.img-thumb img {
  width: 64px;
  height: 64px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.img-thumb-del {
  position: absolute;
  top: -6px;
  right: -6px;
  width: 1.3rem;
  height: 1.3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  line-height: 1;
  border: none;
  border-radius: 50%;
  background-color: var(--danger, #ef4444);
  color: #fff;
  cursor: pointer;
}

.img-thumb-main {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  font-size: 0.6rem;
  text-align: center;
  background-color: rgba(0, 0, 0, 0.6);
  color: #fff;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

.image-modal-caption {
  margin-top: 0.8rem;
  font-size: 1rem;
}

.image-modal-spec {
  margin-top: 0.25rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.image-modal-noimg {
  margin-top: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-style: italic;
}

.image-modal-close {
  position: absolute;
  top: 0.4rem;
  right: 0.4rem;
  /* Sit above the (relatively-positioned) stage/image, which comes later in the
     DOM and would otherwise paint over the button and swallow its clicks. */
  z-index: 2;
  width: 2.25rem;
  height: 2.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  line-height: 1;
  border: 1px solid var(--border-color);
  border-radius: 50%;
  background-color: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
}

.image-modal-close:hover {
  color: var(--text-primary, #fff);
  background-color: var(--border-color);
}

/* --- Toasts (non-blocking feedback) --------------------------------------- */
.toast-container {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-width: min(90vw, 380px);
  pointer-events: none;
}
.toast {
  background: var(--surface-2, #1b2740);
  color: var(--text-primary, #eef2f9);
  border: 1px solid var(--border-color, #24314d);
  border-left: 4px solid var(--accent-blue, #4f7cff);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  font-size: 0.9rem;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  pointer-events: auto;
}
.toast.show { opacity: 1; transform: translateY(0); }
.toast-success { border-left-color: var(--success, #34d399); }
.toast-error { border-left-color: var(--danger, #f87171); }
.toast-info { border-left-color: var(--accent-blue, #4f7cff); }

/* --- Accessibility: visible keyboard focus + interactive cards ------------- */
:focus-visible {
  outline: 2px solid var(--accent-blue, #4f7cff);
  outline-offset: 2px;
}
/* Product cards act as buttons (add to cart) — keep them looking like cards but
   reachable/activatable by keyboard. */
.product-card[role="button"],
.pos-product-card[role="button"] {
  cursor: pointer;
}
/* Full-width app error banner shown when initial data fails to load. */
.app-error-banner {
  background: var(--surface-2, #1b2740);
  color: var(--text-primary, #eef2f9);
  border: 1px solid var(--danger, #f87171);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin: 1rem auto;
  max-width: 640px;
  text-align: center;
}
.app-error-banner button {
  margin-top: 0.75rem;
}

/* --- Eye button inside cart / budget item rows ---------------------------- */
.cart-item-actions {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex-shrink: 0;
}
.cart-item-eye {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  padding: 0.15rem 0.3rem;
  border-radius: 6px;
  opacity: 0.7;
}
.cart-item-eye:hover {
  opacity: 1;
  background: var(--border-color, #24314d);
}

/* ===== Guía Técnica ======================================================== */
.guide-container { padding: 1rem 0 3rem; }
.guide-header {
  display: flex; flex-wrap: wrap; gap: 1rem;
  align-items: center; justify-content: space-between; margin-bottom: 1rem;
}
.guide-title { margin: 0; font-size: 1.3rem; }
.guide-subtitle { color: var(--text-secondary); font-size: 0.9rem; margin-top: 0.15rem; }
.guide-tabs { display: flex; gap: 0.35rem; background: var(--surface-2, #1b2740); padding: 0.3rem; border-radius: 10px; }
.guide-tab {
  border: none; background: transparent; color: var(--text-secondary);
  padding: 0.5rem 0.9rem; border-radius: 8px; cursor: pointer; font-size: 0.9rem; white-space: nowrap;
}
.guide-tab:hover { color: var(--text-primary); }
.guide-tab.active { background: var(--accent-blue); color: #fff; }

.guide-toolbar { display: flex; gap: 0.5rem; margin-bottom: 0.75rem; }
.guide-toolbar .input-field { flex: 1; }

.guide-chips { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1rem; }
.guide-chip {
  --chip: #94a3b8;
  border: 1px solid var(--border-color); background: var(--bg-card); color: var(--text-secondary);
  padding: 0.3rem 0.7rem; border-radius: 999px; cursor: pointer; font-size: 0.82rem;
  display: inline-flex; align-items: center; gap: 0.35rem;
}
.guide-chip::before { content: ''; width: 9px; height: 9px; border-radius: 50%; background: var(--chip); }
.guide-chip:hover { color: var(--text-primary); border-color: var(--chip); }
.guide-chip.active { background: var(--chip); color: #0a0f1c; border-color: var(--chip); font-weight: 600; }

.guide-diagram {
  position: relative; max-width: 760px; margin: 0 auto; color: #9fb0c9;
  background: radial-gradient(ellipse at center, rgba(79,124,255,0.05), transparent 70%);
  border-radius: 12px;
}
.guide-diagram svg { display: block; width: 100%; height: auto; }
.guide-diagram-loading { padding: 3rem; text-align: center; color: var(--text-secondary); }
.guide-pin-layer { position: absolute; inset: 0; }
.guide-pin {
  --pin: #4f7cff;
  position: absolute; width: 22px; height: 22px; transform: translate(-50%, -50%);
  border-radius: 50%; background: var(--pin); border: 2px solid rgba(255,255,255,0.85);
  box-shadow: 0 2px 6px rgba(0,0,0,0.45); cursor: pointer; padding: 0; transition: transform 0.12s ease;
}
.guide-pin:hover, .guide-pin:focus-visible { transform: translate(-50%, -50%) scale(1.3); z-index: 3; }
.guide-pin.dim { opacity: 0.28; }
.guide-pin.pulse { animation: guidePinPulse 1.1s ease-out infinite; z-index: 2; }
@keyframes guidePinPulse {
  0% { box-shadow: 0 0 0 0 var(--pin); }
  70% { box-shadow: 0 0 0 14px rgba(0,0,0,0); }
  100% { box-shadow: 0 0 0 0 rgba(0,0,0,0); }
}
.guide-hint { text-align: center; color: var(--text-secondary); font-size: 0.82rem; margin: 0.6rem 0 1rem; }

.guide-results { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 0.5rem; }
.guide-comp-card {
  display: flex; align-items: center; gap: 0.5rem; text-align: left;
  background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 8px;
  padding: 0.6rem 0.75rem; cursor: pointer; color: var(--text-primary); font-size: 0.88rem;
}
.guide-comp-card:hover { border-color: var(--accent-blue); }
.guide-comp-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.guide-comp-name { flex: 1; font-weight: 500; }
.guide-comp-sys { color: var(--text-secondary); font-size: 0.72rem; }
.guide-empty { color: var(--text-secondary); padding: 1rem; text-align: center; }

/* Diagnóstico */
.guide-diag-list { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0.75rem 0 1rem; }
.guide-diag-card {
  display: inline-flex; align-items: center; gap: 0.4rem; background: var(--bg-card);
  border: 1px solid var(--border-color); color: var(--text-primary); border-radius: 8px;
  padding: 0.55rem 0.8rem; cursor: pointer; font-size: 0.86rem;
}
.guide-diag-card:hover { border-color: var(--accent-blue); }
.guide-diag-card.active { border-color: var(--accent-blue); background: rgba(79,124,255,0.12); }
.guide-diag-detail {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: 10px; padding: 1rem 1.25rem;
}
.guide-diag-title { margin: 0 0 0.35rem; }
.guide-diag-summary { color: var(--text-secondary); margin: 0 0 0.75rem; }
.guide-diag-actions { margin-bottom: 0.75rem; }
.guide-suspects { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.6rem; }
.guide-suspect { border: 1px solid var(--border-color); border-radius: 8px; padding: 0.6rem 0.8rem; }
.guide-suspect-head { display: flex; align-items: center; gap: 0.5rem; }
.guide-suspect-rank {
  width: 22px; height: 22px; border-radius: 50%; background: var(--accent-blue); color: #fff;
  display: inline-flex; align-items: center; justify-content: center; font-size: 0.78rem; font-weight: 700; flex-shrink: 0;
}
.guide-suspect-name { font-weight: 600; flex: 1; }
.guide-suspect-why, .guide-suspect-check { font-size: 0.85rem; color: var(--text-secondary); margin-top: 0.3rem; }
.guide-suspect-link { margin-top: 0.5rem; }

/* Aprender */
.guide-learn-system { margin-bottom: 1.5rem; }
.guide-learn-title { display: flex; align-items: center; gap: 0.5rem; font-size: 1.05rem; margin: 0 0 0.6rem; }
.guide-learn-count { color: var(--text-secondary); font-size: 0.8rem; font-weight: 400; }

/* Ficha técnica / editor (modal) */
.guide-modal-overlay {
  position: fixed; inset: 0; z-index: 1200; display: flex; align-items: flex-start; justify-content: center;
  padding: 2rem 1rem; background: rgba(0,0,0,0.7); backdrop-filter: blur(2px); overflow-y: auto;
}
.guide-modal {
  position: relative; background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: 12px; padding: 1.5rem; max-width: 640px; width: 100%; box-shadow: var(--shadow-lg);
}
.guide-modal-close {
  position: absolute; top: 0.6rem; right: 0.6rem; z-index: 2; width: 2.25rem; height: 2.25rem;
  display: flex; align-items: center; justify-content: center; font-size: 1.5rem; line-height: 1;
  border: 1px solid var(--border-color); border-radius: 50%; background: var(--bg-card); color: var(--text-secondary); cursor: pointer;
}
.guide-modal-close:hover { color: var(--text-primary); background: var(--border-color); }
.fs-head { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 0.5rem; padding-right: 2rem; }
.fs-head h3 { margin: 0; }
.fs-sys { color: var(--text-secondary); font-size: 0.82rem; }
.fs-badges { display: flex; gap: 0.4rem; flex-wrap: wrap; margin-bottom: 0.75rem; }
.fs-badge {
  font-size: 0.75rem; padding: 0.2rem 0.55rem; border-radius: 999px;
  background: var(--surface-2, #1b2740); color: var(--text-secondary); border: 1px solid var(--border-color);
}
.fs-badge.fs-ok { color: var(--success); border-color: var(--success); }
.fs-badge.fs-warn { color: #eab308; border-color: #eab308; }
.fs-badge.fs-danger { color: var(--danger); border-color: var(--danger); }
.fs-block { margin-bottom: 0.9rem; }
.fs-block h4 { margin: 0 0 0.25rem; font-size: 0.9rem; color: var(--accent-blue); }
.fs-block p { margin: 0; color: var(--text-primary); font-size: 0.9rem; line-height: 1.45; }
.fs-block ul { margin: 0; padding-left: 1.1rem; color: var(--text-primary); font-size: 0.9rem; line-height: 1.5; }
.fs-parts { display: flex; flex-direction: column; gap: 0.35rem; }
.fs-part {
  display: flex; align-items: center; gap: 0.5rem; background: var(--surface-2, #1b2740);
  border-radius: 6px; padding: 0.4rem 0.6rem; font-size: 0.85rem;
}
.fs-part-name { flex: 1; }
.fs-part-price { color: var(--success); font-weight: 600; }
.fs-part-stock { font-size: 0.72rem; color: var(--text-secondary); }
.fs-part-stock.low { color: #eab308; }
.fs-part-stock.out { color: var(--danger); }
.fs-videos { display: flex; flex-direction: column; gap: 0.35rem; }
.fs-video { color: var(--accent-blue); text-decoration: none; font-size: 0.88rem; }
.fs-video:hover { text-decoration: underline; }
.fs-chips { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.fs-chip {
  background: var(--surface-2, #1b2740); border: 1px solid var(--border-color); color: var(--text-primary);
  border-radius: 999px; padding: 0.3rem 0.7rem; cursor: pointer; font-size: 0.8rem;
}
.fs-chip:hover { border-color: var(--accent-blue); }
.fs-actions { display: flex; gap: 0.5rem; margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--border-color); }
.fs-form { display: flex; flex-direction: column; gap: 0.6rem; margin-top: 0.5rem; }
.fs-form label { display: flex; flex-direction: column; gap: 0.25rem; font-size: 0.8rem; color: var(--text-secondary); }
.fs-form .input-field { font-size: 0.9rem; }

@media (min-width: 860px) {
  .guide-diag { display: grid; grid-template-columns: 260px 1fr; gap: 1rem; align-items: start; }
  .guide-diag > .guide-hint, .guide-diag > .input-field { grid-column: 1 / -1; }
  .guide-diag-list { flex-direction: column; margin: 0; }
  .guide-diag-card { width: 100%; }
}