/* ================================================================
   VMTOP Catálogo – styles.css
   Diseño mayoreo: oscuro, denso, profesional
   ================================================================ */

/* ─── Reset & variables ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }

:root {
  --clr-bg:          #0B1827;
  --clr-surface:     #0D2139;
  --clr-surface2:    #162d4a;
  --clr-border:      #2e3347;
  --clr-accent:      #f59e0b;       /* amarillo mayoreo */
  --clr-accent2:     #3b82f6;       /* azul acción */
  --clr-text:        #e2e8f0;
  --clr-text-muted:  #b0bccf;
  --clr-success:     #22c55e;
  --clr-tag-bg:      #1e3a5f;
  --clr-tag-text:    #93c5fd;

  --radius-sm:   6px;
  --radius-md:   10px;
  --radius-lg:   16px;

  --shadow-card: 0 2px 12px rgba(0,0,0,.45);
  --shadow-hover: 0 6px 24px rgba(0,0,0,.65);

  --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono: 'Cascadia Code', 'Fira Code', monospace;
  --transition: .18s ease;
}

html { scroll-behavior: smooth; overflow-x: hidden; }

body {
  font-family: var(--font-sans);
  background: var(--clr-bg);
  color: var(--clr-text);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ─── Header ────────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--clr-surface);
  border-bottom: 1px solid var(--clr-border);
  box-shadow: 0 2px 16px rgba(0,0,0,.5);
}

.header-inner {
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 16px;
  height: 60px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand { display: flex; align-items: center; flex-shrink: 0; }
.brand-img { height: 38px; width: auto; display: block; }

.header-controls { display: flex; align-items: center; gap: 10px; flex: 1; }

/* Desktop: búsqueda flexible, acciones a la derecha */
@media (min-width: 769px) {
  .search-wrapper  { flex: 1; max-width: 620px; }
  .header-actions  { margin-left: auto; }
}

.search-wrapper {
  position: relative;
  flex: 1;
  max-width: 780px;
}
.icon-search {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--clr-text-muted);
  pointer-events: none;
}
.search-input {
  width: 100%;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  color: var(--clr-text);
  font-size: 15px;
  padding: 11px 36px 11px 38px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.search-input::placeholder { color: var(--clr-text-muted); }
.search-input:focus {
  border-color: var(--clr-accent2);
  box-shadow: 0 0 0 3px rgba(59,130,246,.2);
}
.search-clear {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--clr-text-muted);
  cursor: pointer;
  font-size: 12px;
  padding: 2px 4px;
  line-height: 1;
  border-radius: var(--radius-sm);
}
.search-clear:hover { color: var(--clr-text); }

.header-stats { font-size: 12px; color: var(--clr-text-muted); white-space: nowrap; }
.header-stats span { color: var(--clr-accent); font-weight: 700; }

/* ─── Layout ─────────────────────────────────────────────────────── */
.main-layout {
  max-width: 1600px;
  margin: 0 auto;
  padding: 16px;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 16px;
  align-items: start;
}

/* ─── Sidebar ────────────────────────────────────────────────────── */
.sidebar {
  position: sticky;
  top: 76px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 16px;
  max-height: calc(100vh - 92px);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--clr-border) transparent;
}
.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.sidebar-title { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: #f0f4f8; }
.sidebar-reset {
  background: none;
  border: none;
  color: var(--clr-accent2);
  font-size: 12px;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.sidebar-reset:hover { background: rgba(59,130,246,.15); }

.category-list { list-style: none; display: flex; flex-direction: column; gap: 2px; }
.category-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  transition: background var(--transition), color var(--transition);
  color: var(--clr-text-muted);
  user-select: none;
}
.category-item:hover { background: var(--clr-surface2); color: var(--clr-text); }
.category-item.active { background: rgba(245,158,11,.12); color: var(--clr-accent); font-weight: 600; }
.category-count {
  font-size: 11px;
  background: var(--clr-surface2);
  color: var(--clr-text-muted);
  border-radius: 99px;
  padding: 1px 7px;
  min-width: 26px;
  text-align: center;
}
.category-item.active .category-count { background: rgba(245,158,11,.2); color: var(--clr-accent); }

/* ─── Price filter ───────────────────────────────────────────────── */
.price-filter { margin-bottom: 4px; }
.price-filter-title {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: #f0f4f8;
  margin-bottom: 2px;
}
.price-filter-subtitle {
  font-size: 11px;
  color: var(--clr-text-muted);
  margin-bottom: 12px;
  opacity: .7;
}
.price-inputs {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  margin-bottom: 14px;
}
.price-input-group { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.price-input-label { font-size: 11px; color: var(--clr-text-muted); font-weight: 500; }
.price-input-box {
  display: flex;
  align-items: center;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  padding: 6px 8px;
  gap: 4px;
  transition: border-color var(--transition);
}
.price-input-box:focus-within { border-color: var(--clr-accent2); }
.price-input-prefix { font-size: 12px; color: var(--clr-text-muted); }
.price-input {
  background: none;
  border: none;
  color: var(--clr-text);
  font-size: 13px;
  font-weight: 600;
  width: 100%;
  outline: none;
  min-width: 0;
}
.price-input::-webkit-inner-spin-button,
.price-input::-webkit-outer-spin-button { -webkit-appearance: none; }
.price-input-sep { font-size: 14px; color: var(--clr-text-muted); padding-bottom: 8px; flex-shrink: 0; }

/* Dual range slider */
.price-range-wrap {
  position: relative;
  height: 20px;
  margin-bottom: 10px;
}
.price-range {
  position: absolute;
  width: 100%;
  height: 4px;
  background: none;
  pointer-events: none;
  -webkit-appearance: none;
  appearance: none;
  top: 50%;
  transform: translateY(-50%);
  outline: none;
}
.price-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--clr-accent2);
  border: 2px solid var(--clr-surface);
  cursor: pointer;
  pointer-events: all;
  box-shadow: 0 0 0 2px rgba(59,130,246,.3);
  transition: box-shadow var(--transition);
}
.price-range::-webkit-slider-thumb:hover {
  box-shadow: 0 0 0 4px rgba(59,130,246,.35);
}
.price-range-track {
  position: absolute;
  height: 4px;
  border-radius: 2px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  width: 100%;
  background: var(--clr-border);
}
.price-range-fill {
  position: absolute;
  height: 4px;
  border-radius: 2px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  background: var(--clr-accent2);
}

.btn-price-reset {
  background: none;
  border: none;
  color: var(--clr-accent2);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  padding: 0;
  opacity: .8;
  transition: opacity var(--transition);
}
.btn-price-reset:hover { opacity: 1; }

.sidebar-divider {
  height: 1px;
  background: var(--clr-border);
  margin: 14px 0;
}

/* ─── Toolbar ────────────────────────────────────────────────────── */
.toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.btn-filter-toggle {
  display: none;              /* visible solo en móvil */
  align-items: center;
  gap: 6px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  color: var(--clr-text);
  font-size: 13px;
  padding: 6px 12px;
  cursor: pointer;
  transition: background var(--transition);
}
.btn-filter-toggle:hover { background: var(--clr-surface2); }

.active-filters { display: flex; flex-wrap: wrap; gap: 6px; flex: 1; }
.filter-chip {
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(245,158,11,.12);
  border: 1px solid rgba(245,158,11,.3);
  color: var(--clr-accent);
  border-radius: 99px;
  font-size: 12px;
  padding: 3px 10px;
}
.filter-chip button {
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  font-size: 13px;
  line-height: 1;
  padding: 0 2px;
  opacity: .7;
}
.filter-chip button:hover { opacity: 1; }

.toolbar-right { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.sidebar-sort { display: flex; flex-direction: column; gap: 8px; }
.sort-select-sidebar {
  width: 100%;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  color: var(--clr-text);
  font-size: 13px;
  padding: 8px 10px;
  cursor: pointer;
  outline: none;
  transition: border-color var(--transition);
}
.sort-select-sidebar:focus { border-color: var(--clr-accent2); }

/* ─── Product Grid ───────────────────────────────────────────────── */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}

/* ─── Product Card ───────────────────────────────────────────────── */
.product-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  box-shadow: var(--shadow-card);
  position: relative;
}
.product-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(245,158,11,.35);
}

/* Descuento badge */
.discount-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  background: #dc2626;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  border-radius: 99px;
  padding: 2px 8px;
  z-index: 2;
  letter-spacing: .02em;
}

/* Imagen */
.card-img-wrap {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: var(--clr-surface2);
  overflow: hidden;
  position: relative;
}
.card-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 8px;
  transition: opacity .3s, transform .3s;
  opacity: 0;
  position: relative;
  z-index: 1;
}
.card-img.loaded { opacity: 1; }
.card-img:hover { transform: scale(1.05); }

/* Placeholder skeleton */
.img-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-border);
  font-size: 36px;
  pointer-events: none;
}

/* Info */
.card-body { padding: 10px 12px; display: flex; flex-direction: column; gap: 6px; flex: 1; }

.card-sku {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--clr-text-muted);
  letter-spacing: .04em;
}
.card-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--clr-text);
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-category {
  display: inline-flex;
  align-items: center;
  background: var(--clr-tag-bg);
  color: var(--clr-tag-text);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  border-radius: 4px;
  padding: 2px 7px;
  width: fit-content;
}

/* Precios */
.card-prices { display: flex; flex-direction: column; gap: 3px; margin-top: 4px; }
.price-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  padding: 3px 6px;
  border-radius: 4px;
}
.price-row.public  { background: rgba(255,255,255,.04); }
.price-row.mayoreo { background: rgba(245,158,11,.08); }
.price-row.dist    { background: rgba(34,197,94,.08); }
.price-row.caja    { background: rgba(59,130,246,.08); }

.price-label { color: var(--clr-text-muted); font-size: 11px; }
.price-value { font-weight: 700; }
.price-row.public  .price-value { color: var(--clr-text-muted); text-decoration: line-through; }
.price-row.mayoreo .price-value { color: var(--clr-accent); }
.price-row.dist    .price-value { color: var(--clr-success); }
.price-row.caja    .price-value { color: #93c5fd; }


/* ─── Header actions (desktop) ───────────────────────────────────── */
.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.btn-how-to-buy {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: var(--radius-sm);
  color: var(--clr-text);
  font-size: 13px;
  font-weight: 600;
  padding: 0 14px;
  height: 42px;
  white-space: nowrap;
  text-decoration: none;
  flex-shrink: 0;
  transition: background var(--transition);
}
.btn-how-to-buy:hover { background: rgba(255,255,255,.2); }

.btn-pdf {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--clr-accent);
  border: none;
  border-radius: var(--radius-sm);
  color: #000;
  font-size: 13px;
  font-weight: 700;
  padding: 0 14px;
  height: 42px;
  white-space: nowrap;
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--transition);
}
.btn-pdf:hover { background: #e08c00; }

/* ─── Hamburguesa (solo móvil) ───────────────────────────────────── */
.hamburger-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: var(--radius-sm);
  width: 42px;
  height: 42px;
  padding: 10px;
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--transition);
}
.hamburger-btn:hover { background: rgba(255,255,255,.2); }
.hamburger-btn span {
  display: block;
  height: 2px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: transform .2s, opacity .2s;
}
.hamburger-btn.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger-btn.open span:nth-child(2) { opacity: 0; }
.hamburger-btn.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ─── Menú móvil (panel lateral) ─────────────────────────────────── */
.mobile-menu-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(3px);
  z-index: 150;
}
.mobile-menu-backdrop.visible { display: block; }

.mobile-menu-panel {
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: 280px;
  max-width: 85vw;
  background: var(--clr-surface);
  border-right: 1px solid var(--clr-border);
  z-index: 160;
  display: flex;
  flex-direction: column;
  transform: translateX(-100%);
  transition: transform .25s ease;
  box-shadow: 8px 0 32px rgba(0,0,0,.4);
}
.mobile-menu-panel.open { transform: translateX(0); }

.mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--clr-border);
  flex-shrink: 0;
}
.mobile-menu-close {
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  color: var(--clr-text);
  width: 30px;
  height: 30px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
.mobile-menu-close:hover { background: var(--clr-border); }

.mobile-menu-body { display: flex; flex-direction: column; padding: 10px 0; flex: 1; }

.mobile-menu-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 22px;
  color: var(--clr-text);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  background: none;
  border: none;
  border-bottom: 1px solid var(--clr-border);
  cursor: pointer;
  width: 100%;
  text-align: left;
  transition: background var(--transition);
}
.mobile-menu-item:last-child { border-bottom: none; }
.mobile-menu-item:hover { background: var(--clr-surface2); }

/* ─── Cart button (header) ───────────────────────────────────────── */
.cart-btn {
  position: relative;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: var(--radius-sm);
  color: var(--clr-text);
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--transition);
}
.cart-btn:hover { background: rgba(255,255,255,.18); }
.cart-count {
  position: absolute;
  top: -8px;
  right: -8px;
  background: var(--clr-accent);
  color: #000;
  font-size: 9px;
  font-weight: 800;
  border-radius: 99px;
  min-width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 5px;
  line-height: 1;
  white-space: nowrap;
}

/* ─── Cart panel ─────────────────────────────────────────────────── */
.cart-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(3px);
  z-index: 150;
}
.cart-backdrop.visible { display: block; }

.cart-panel {
  position: fixed;
  top: 0;
  right: 0;
  height: 100vh;
  width: 380px;
  max-width: 100vw;
  background: var(--clr-surface);
  border-left: 1px solid var(--clr-border);
  z-index: 160;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform .25s ease;
  box-shadow: -8px 0 32px rgba(0,0,0,.4);
}
.cart-panel.open { transform: translateX(0); }

.cart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--clr-border);
  flex-shrink: 0;
}
.cart-title { font-size: 17px; font-weight: 700; }
.cart-close {
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  color: var(--clr-text);
  width: 30px;
  height: 30px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 14px;
  transition: background var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}
.cart-close:hover { background: var(--clr-border); }

.cart-items {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  scrollbar-width: thin;
  scrollbar-color: var(--clr-border) transparent;
}

.cart-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 100%;
  color: var(--clr-text-muted);
  font-size: 14px;
}
.cart-empty span { font-size: 48px; }

/* Cart item */
.cart-item {
  display: grid;
  grid-template-columns: 52px 1fr auto;
  gap: 10px;
  align-items: center;
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  padding: 10px;
}
.cart-item-img {
  width: 52px;
  height: 52px;
  object-fit: contain;
  background: #fff;
  border-radius: 6px;
  padding: 4px;
}
.cart-item-img-placeholder {
  width: 52px;
  height: 52px;
  background: var(--clr-border);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}
.cart-item-info { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.cart-item-sku  { font-size: 10px; color: var(--clr-text-muted); font-family: var(--font-mono); }
.cart-item-name { font-size: 12px; font-weight: 600; line-height: 1.3; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cart-item-controls {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
}
.qty-wrap {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  padding: 2px;
}
.qty-btn {
  background: none;
  border: none;
  color: var(--clr-text);
  width: 22px;
  height: 22px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
.qty-btn:hover { background: var(--clr-border); }
.qty-value { font-size: 13px; font-weight: 700; min-width: 24px; text-align: center; }
.cart-item-remove {
  background: none;
  border: none;
  color: var(--clr-text-muted);
  cursor: pointer;
  font-size: 13px;
  padding: 2px 4px;
  border-radius: 4px;
  transition: color var(--transition), background var(--transition);
}
.cart-item-remove:hover { color: #f87171; background: rgba(248,113,113,.1); }

/* Cart footer */
.cart-footer {
  border-top: 1px solid var(--clr-border);
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex-shrink: 0;
}
.cart-summary { display: flex; flex-direction: column; gap: 4px; }
.cart-summary-row {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--clr-text-muted);
}
.cart-summary-row span:last-child { font-weight: 700; color: var(--clr-text); }
.cart-grand-total {
  display: flex;
  justify-content: space-between;
  font-size: 15px;
  font-weight: 800;
  color: var(--clr-text);
  border-top: 1px solid var(--clr-border);
  padding-top: 8px;
  margin-top: 4px;
}

/* Tier banner */
.cart-tier-banner {
  padding: 0 2px 4px;
}
.tier-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 99px;
}
.tier-dist    { background: rgba(34,197,94,.15);  color: #22c55e; }
.tier-mayoreo { background: rgba(245,158,11,.12); color: #f59e0b; }

/* Precio en item del carrito */
.cart-item-price {
  font-size: 11px;
  color: var(--clr-text-muted);
  margin-top: 2px;
}
.cart-tier-label {
  font-weight: 700;
  font-size: 10px;
  text-transform: uppercase;
  margin-right: 3px;
}

.cart-name-wrap { display: flex; flex-direction: column; gap: 5px; }

/* ─── Checkout popup ─────────────────────────────────────────────── */
.checkout-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.65);
  backdrop-filter: blur(4px);
  z-index: 230;
}
.checkout-overlay.visible { display: block; }

.checkout-popup {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -48%) scale(.96);
  opacity: 0;
  width: 460px;
  max-width: calc(100vw - 24px);
  max-height: 90vh;
  overflow-y: auto;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  z-index: 240;
  box-shadow: 0 24px 60px rgba(0,0,0,.6);
  transition: transform .22s cubic-bezier(.32,1,.32,1), opacity .22s ease;
  pointer-events: none;
}
.checkout-popup.open {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
  pointer-events: all;
}
.checkout-popup-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px 14px;
  border-bottom: 1px solid var(--clr-border);
}
.checkout-popup-title { font-size: 16px; font-weight: 700; }
.checkout-popup-body { padding: 18px 20px; display: flex; flex-direction: column; gap: 14px; }
.checkout-field-group { display: flex; flex-direction: column; gap: 5px; }
.checkout-field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.checkout-note { font-size: 11px; color: var(--clr-text-muted); }
.checkout-popup-footer {
  display: flex;
  gap: 10px;
  padding: 0 20px 20px;
}
.cart-name-label { font-size: 11px; font-weight: 700; color: var(--clr-text-muted); text-transform: uppercase; letter-spacing: .05em; }
.cart-name-input {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  color: var(--clr-text);
  font-size: 14px;
  padding: 9px 12px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}
.cart-name-input::placeholder { color: var(--clr-text-muted); }
.cart-name-input:focus {
  border-color: var(--clr-accent2);
  box-shadow: 0 0 0 3px rgba(59,130,246,.2);
}
.cart-name-input.error {
  border-color: #f87171;
  box-shadow: 0 0 0 3px rgba(248,113,113,.2);
}

.cart-pay-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--clr-text-muted);
  text-transform: uppercase;
  letter-spacing: .05em;
}

.btn-pay-online {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--clr-accent2);
  border: none;
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  padding: 13px;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  box-shadow: 0 4px 14px rgba(59,130,246,.3);
}
.btn-pay-online:hover { background: #2563eb; transform: translateY(-1px); }
.btn-pay-online:active { transform: translateY(0); }

.btn-whatsapp {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: #25D366;
  border: none;
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  padding: 13px;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  box-shadow: 0 4px 14px rgba(37,211,102,.35);
}
.btn-whatsapp:hover { background: #1ebe5d; transform: translateY(-1px); }
.btn-whatsapp:active { transform: translateY(0); }

.btn-clear-cart {
  background: none;
  border: none;
  color: var(--clr-text-muted);
  font-size: 12px;
  text-align: center;
  cursor: pointer;
  padding: 4px;
  transition: color var(--transition);
}
.btn-clear-cart:hover { color: #f87171; }

/* Botón agregar en tarjeta */
.btn-add-cart {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: var(--clr-accent2);
  border: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 8px;
  cursor: pointer;
  width: 100%;
  transition: background var(--transition);
  margin-top: auto;
}
.btn-add-cart:hover { background: #2563eb; }
.btn-add-cart.added { background: var(--clr-success); }

@media (max-width: 560px) {
  .cart-panel { width: 100vw; }
}

/* ─── Empty state ────────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--clr-text-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.btn-secondary {
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  color: var(--clr-text);
  border-radius: var(--radius-sm);
  padding: 8px 18px;
  font-size: 13px;
  cursor: pointer;
  transition: background var(--transition);
}
.btn-secondary:hover { background: var(--clr-border); }

/* ─── Loader ─────────────────────────────────────────────────────── */
.loader {
  text-align: center;
  padding: 24px;
  color: var(--clr-text-muted);
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid var(--clr-border);
  border-top-color: var(--clr-accent);
  border-radius: 50%;
  display: inline-block;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Modal ──────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.75);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  backdrop-filter: blur(4px);
  animation: fadeIn .18s ease;
}
@keyframes fadeIn { from { opacity: 0; } }

.modal-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  max-width: 640px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  overflow-x: hidden;
  position: relative;
  animation: slideUp .2s ease;
  box-shadow: 0 24px 60px rgba(0,0,0,.6);
  word-break: break-word;
}
@keyframes slideUp { from { transform: translateY(20px); opacity: 0; } }

.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  color: var(--clr-text);
  width: 30px;
  height: 30px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 14px;
  z-index: 1;
  transition: background var(--transition);
}
.modal-close:hover { background: var(--clr-border); }

.modal-content { padding: 20px; }

/* Modal layout */
.modal-inner { display: grid; grid-template-columns: 240px 1fr; gap: 20px; }
.modal-img-wrap {
  aspect-ratio: 1/1;
  background: var(--clr-surface2);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--clr-border);
}
.modal-img { width: 100%; height: 100%; object-fit: contain; padding: 12px; }
.modal-info { display: flex; flex-direction: column; gap: 10px; }
.modal-sku { font-family: var(--font-mono); font-size: 12px; color: var(--clr-text-muted); }
.modal-name { font-size: 18px; font-weight: 700; line-height: 1.3; }
.modal-cat { margin-top: 2px; }
.modal-prices { display: flex; flex-direction: column; gap: 4px; margin-top: 8px; }
.modal-price-row {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  padding: 6px 10px;
  border-radius: 6px;
}
.modal-price-row.public  { background: rgba(255,255,255,.04); }
.modal-price-row.mayoreo { background: rgba(245,158,11,.1); }
.modal-price-row.dist    { background: rgba(34,197,94,.08); }
.modal-price-row.caja    { background: rgba(59,130,246,.08); }
.modal-price-row .price-value { font-size: 15px; font-weight: 800; }
.modal-meta { font-size: 12px; color: var(--clr-text-muted); margin-top: auto; }

.modal-cart-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--clr-border);
}
.modal-qty-wrap {
  display: flex;
  align-items: center;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.modal-qty-wrap .qty-popup-btn   { width: 44px; height: 44px; font-size: 20px; }
.modal-qty-wrap .qty-popup-input { font-size: 18px; padding: 6px 0; }
.btn-modal-add-cart {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  background: var(--clr-accent2);
  border: none;
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  padding: 12px;
  cursor: pointer;
  width: 100%;
  transition: background var(--transition);
}
.btn-modal-add-cart:hover { background: #2563eb; }

/* ─── Responsive ─────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .main-layout {
    grid-template-columns: 1fr;
    padding: 12px;
  }
  .sidebar {
    position: fixed;
    top: 60px;
    left: 0;
    height: calc(100vh - 60px);
    width: 260px;
    border-radius: 0;
    transform: translateX(-100%);
    transition: transform .25s ease;
    z-index: 90;
  }
  .sidebar.open { transform: translateX(0); }
  .btn-filter-toggle { display: flex; }

  /* Modal: siempre una columna en móvil */
  .modal-inner { grid-template-columns: 1fr !important; gap: 12px; }
  .modal-img-wrap { max-width: 180px; margin: 0 auto; }
  .modal-overlay { padding: 10px; align-items: flex-end; }
  .modal-card { border-radius: var(--radius-lg) var(--radius-lg) 0 0; max-height: 92vh; width: 100%; max-width: 100%; }
  .modal-content { padding: 14px; }
  .modal-name { font-size: 15px; }
  .modal-price-row { padding: 5px 8px; }
  .modal-price-row .price-label { font-size: 11px; }
  .modal-price-row .price-value { font-size: 13px; }
}

@media (max-width: 768px) {
  .header-actions { display: none; }
  .hamburger-btn  { display: flex; flex-shrink: 0; }
  /* La búsqueda ocupa todo el espacio disponible entre logo y botones */
  .search-wrapper { flex: 1; max-width: unset; }
  .search-input   { font-size: 13px; padding: 9px 30px 9px 34px; }
  /* Carrito y hamburguesa al extremo derecho */
  .cart-btn       { flex-shrink: 0; margin-left: auto; }
}

@media (max-width: 560px) {
  .header-inner { height: 52px; gap: 6px; padding: 0 10px; }
  .brand-img { height: 30px; }
  .brand-sub { display: none; }
  .cart-btn  { width: 38px; height: 38px; }
  .hamburger-btn { width: 38px; height: 38px; }
  .product-grid { grid-template-columns: repeat(auto-fill, minmax(155px, 1fr)); gap: 10px; }
  .card-body { padding: 8px 10px; }
  /* Modal full width en pantallas pequeñas */
  .modal-overlay { padding: 0; }
  .modal-card { border-radius: var(--radius-lg) var(--radius-lg) 0 0; max-height: 95vh; }
  .modal-content { padding: 12px; }
}

/* ─── Z Fold 4 y pantallas muy estrechas (≤320px) ────────────────── */
@media (max-width: 320px) {
  /* Header */
  .header-inner { padding: 0 10px; gap: 8px; height: 50px; }
  .brand-img { height: 28px; }
  .search-input { font-size: 13px; padding: 8px 30px 8px 30px; }

  /* Grid de tarjetas: 1 columna */
  .product-grid { grid-template-columns: 1fr; gap: 8px; }

  /* Modal: sin padding lateral excesivo */
  .modal-overlay { padding: 8px; }
  .modal-card { border-radius: var(--radius-md); max-height: 95vh; }
  .modal-content { padding: 12px; }
  .modal-inner { gap: 10px; }
  .modal-img-wrap { max-width: 120px; }
  .modal-name { font-size: 14px; }
  .modal-price-row { padding: 5px 8px; }
  .modal-price-row .price-value { font-size: 13px; }

  /* Filas de precio: evitar desbordamiento */
  .price-row { padding: 3px 4px; }
  .price-label { font-size: 10px; }
  .price-value { font-size: 11px; }

  /* Carrito panel: ancho completo */
  .cart-panel { width: 100vw; }
  .cart-item { grid-template-columns: 44px 1fr auto; gap: 6px; padding: 8px; }
  .cart-item-img, .cart-item-img-placeholder { width: 44px; height: 44px; }

  /* Qty popup: reducir padding */
  .qty-popup { width: calc(100vw - 20px); }
  .qty-popup-product { padding: 10px 14px; gap: 8px; }
  .qty-popup-body { padding: 12px 14px; }
  .qty-popup-footer { padding: 0 14px 16px; gap: 8px; }
  .qty-popup-btn { width: 42px; height: 42px; font-size: 18px; }
  .qty-popup-input { font-size: 18px; }
}

/* Sidebar overlay (móvil) */
.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 89;
}
.sidebar-backdrop.visible { display: block; }

/* ─── Qty popup (móvil) ──────────────────────────────────────────── */
.qty-popup-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(3px);
  z-index: 210;
}
.qty-popup-overlay.visible { display: block; }

.qty-popup {
  position: fixed;
  top: 50%;
  left: 50%;
  width: 440px;
  max-width: calc(100vw - 32px);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  z-index: 220;
  box-shadow: 0 24px 60px rgba(0,0,0,.6);
  transform: translate(-50%, -48%) scale(.96);
  opacity: 0;
  transition: transform .22s cubic-bezier(.32,1,.32,1), opacity .22s ease;
  pointer-events: none;
}
.qty-popup.open {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
  pointer-events: all;
}

.qty-popup-handle { display: none; }

.qty-popup-product {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px 12px;
  border-bottom: 1px solid var(--clr-border);
}
.qty-popup-img {
  width: 52px;
  height: 52px;
  object-fit: contain;
  background: #fff;
  border-radius: 8px;
  padding: 4px;
  flex-shrink: 0;
}
.qty-popup-img-placeholder {
  width: 52px;
  height: 52px;
  background: var(--clr-surface2);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
}
.qty-popup-info { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.qty-popup-sku  { font-size: 10px; color: var(--clr-text-muted); font-family: var(--font-mono); }
.qty-popup-name { font-size: 14px; font-weight: 700; line-height: 1.3; }
.qty-popup-price { font-size: 13px; font-weight: 700; color: var(--clr-accent); }

.qty-popup-body { padding: 16px 20px; display: flex; flex-direction: column; gap: 14px; }

.qty-popup-label { font-size: 12px; font-weight: 700; color: var(--clr-text-muted); text-transform: uppercase; letter-spacing: .05em; }

.qty-popup-controls {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.qty-popup-btn {
  background: none;
  border: none;
  color: var(--clr-text);
  width: 52px;
  height: 52px;
  font-size: 22px;
  font-weight: 300;
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}
.qty-popup-btn:hover { background: var(--clr-border); }
.qty-popup-input {
  flex: 1;
  background: none;
  border: none;
  border-left: 1px solid var(--clr-border);
  border-right: 1px solid var(--clr-border);
  color: var(--clr-text);
  font-size: 22px;
  font-weight: 700;
  text-align: center;
  outline: none;
  padding: 8px 0;
  min-width: 0;
}
.qty-popup-input::-webkit-inner-spin-button,
.qty-popup-input::-webkit-outer-spin-button { -webkit-appearance: none; }

.btn-add-caja {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: rgba(59,130,246,.12);
  border: 1px dashed var(--clr-accent2);
  border-radius: var(--radius-sm);
  color: var(--clr-accent2);
  font-size: 13px;
  font-weight: 700;
  padding: 11px;
  cursor: pointer;
  width: 100%;
  transition: background var(--transition);
}
.btn-add-caja:hover { background: rgba(59,130,246,.22); }

.qty-popup-footer {
  display: flex;
  gap: 10px;
  padding: 0 20px 20px;
}
.btn-popup-cancel {
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  color: var(--clr-text-muted);
  font-size: 14px;
  font-weight: 600;
  padding: 13px 20px;
  cursor: pointer;
  transition: background var(--transition);
  flex-shrink: 0;
}
.btn-popup-cancel:hover { background: var(--clr-border); }
.btn-popup-confirm {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  flex: 1;
  background: var(--clr-accent2);
  border: none;
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  padding: 13px;
  cursor: pointer;
  transition: background var(--transition);
}
.btn-popup-confirm:hover { background: #2563eb; }

/* ─── Scrollbar ──────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--clr-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--clr-text-muted); }