/* ============================================================
   COTIZADOR B2B — DISEÑO MODERNO BLANCO/NEGRO
   Fuentes: Syne (display) + DM Sans (cuerpo)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=DM+Sans:ital,wght@0,300;0,400;0,500;0,600;1,400&display=swap');

:root {
  /* ── Paleta principal ── */
  --black:          #0a0a0a;
  --black-soft:     #111111;
  --black-mid:      #1a1a1a;
  --gray-900:       #212121;
  --gray-700:       #444444;
  --gray-500:       #888888;
  --gray-400:       #aaaaaa;
  --gray-300:       #cccccc;
  --gray-200:       #e0e0e0;
  --gray-100:       #f2f2f2;
  --gray-50:        #f8f8f8;
  --white:          #ffffff;

  /* ── Header (dark) ── */
  --hdr-bg:         #0a0a0a;
  --hdr-surface:    #111111;
  --hdr-border:     rgba(255,255,255,0.08);
  --hdr-text:       #ffffff;
  --hdr-muted:      rgba(255,255,255,0.45);
  --hdr-hover-bg:   rgba(255,255,255,0.06);
  --hdr-active-bg:  rgba(255,255,255,0.12);

  /* ── Acento funcional ── */
  --accent:         #111111;
  --accent-hover:   #333333;
  --success:        #1a7a3e;
  --danger:         #b91c1c;
  --warning:        #92400e;
  --wa-green:       #25D366;
  --wa-green-hover: #1db954;

  /* ── Tipografía ── */
  --font-display:   'Syne', sans-serif;
  --font-body:      'DM Sans', sans-serif;

  /* ── Espaciado & forma ── */
  --radius:         6px;
  --radius-lg:      10px;
  --radius-xl:      14px;

  /* ── Sombras ── */
  --shadow-sm:      0 1px 3px rgba(0,0,0,0.06);
  --shadow:         0 2px 12px rgba(0,0,0,0.09);
  --shadow-lg:      0 8px 32px rgba(0,0,0,0.13);
  --shadow-xl:      0 16px 48px rgba(0,0,0,0.18);

  --transition:     .18s ease;
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--gray-900);
  background: var(--gray-50);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--gray-700); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--black); }
img { max-width: 100%; height: auto; }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--hdr-bg);
  font-family: var(--font-body);
}

.header-top {
  background: var(--hdr-surface);
  border-bottom: 1px solid var(--hdr-border);
  padding: 7px 0;
}
.header-top .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.header-top span {
  font-size: 11.5px;
  color: var(--hdr-muted);
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  gap: 6px;
}
.header-top span i { font-size: 10px; opacity: 0.6; }
.header-top a { color: var(--hdr-muted); }
.header-top a:hover { color: var(--hdr-text); }

.header-main {
  background: var(--hdr-bg);
  border-bottom: 1px solid var(--hdr-border);
  padding: 14px 0;
}
.header-main .container {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  flex-shrink: 0;
}
.logo-icon {
  width: 38px; height: 38px;
  background: var(--white);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  transition: transform var(--transition), background var(--transition);
}
.logo-icon i { font-size: 17px; color: var(--black); }
.site-logo:hover .logo-icon { transform: rotate(-6deg) scale(1.05); background: var(--gray-200); }
.logo-text { display: flex; flex-direction: column; line-height: 1.15; }
.logo-text strong { font-family: var(--font-display); font-size: 15.5px; font-weight: 700; color: var(--white); letter-spacing: -0.01em; }
.logo-text span { font-size: 10.5px; color: var(--hdr-muted); letter-spacing: 0.1em; text-transform: uppercase; }

/* Search */
.header-search { flex: 1; min-width: 200px; max-width: 440px; position: relative; }
.header-search input {
  width: 100%;
  padding: 9px 42px 9px 14px;
  border: 1px solid var(--hdr-border);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.05);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 13.5px;
  outline: none;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
  box-sizing: border-box;
}
.header-search input::placeholder { color: var(--hdr-muted); }
.header-search input:focus {
  border-color: rgba(255,255,255,0.35);
  background: rgba(255,255,255,0.08);
  box-shadow: 0 0 0 3px rgba(255,255,255,0.04);
}
.header-search .btn-search {
  position: absolute; right: 0; top: 0;
  height: 100%; width: 40px;
  background: transparent; border: none;
  color: var(--hdr-muted); cursor: pointer; font-size: 13px;
  display: flex; align-items: center; justify-content: center;
  transition: color var(--transition);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.header-search .btn-search:hover { color: var(--white); }

/* Actions */
.header-actions { display: flex; align-items: center; gap: 10px; margin-left: auto; flex-shrink: 0; }
.btn-cotizacion {
  display: flex; align-items: center; gap: 8px;
  background: var(--white); color: var(--black);
  border: none;
  padding: 9px 16px;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-size: 13px; font-weight: 600; letter-spacing: 0.01em;
  cursor: pointer; position: relative;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}
.btn-cotizacion i { font-size: 13px; }
.btn-cotizacion:hover { background: var(--gray-200); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(255,255,255,0.12); }
.btn-cotizacion:active { transform: translateY(0); }
.cart-badge {
  position: absolute; top: -7px; right: -7px;
  background: var(--black); color: var(--white);
  border: 1.5px solid var(--white);
  font-size: 9.5px; font-weight: 700;
  width: 18px; height: 18px;
  border-radius: 50%;
  display: flex !important; align-items: center; justify-content: center;
  font-family: var(--font-display);
}

/* Nav */
.header-nav {
  background: var(--hdr-bg);
  border-bottom: 1px solid var(--hdr-border);
}
.header-nav .container { overflow-x: auto; scrollbar-width: none; }
.header-nav .container::-webkit-scrollbar { display: none; }
.header-nav ul { list-style: none; display: flex; align-items: stretch; gap: 2px; }
.header-nav ul li a {
  display: flex; align-items: center; gap: 7px;
  padding: 11px 14px;
  color: var(--hdr-muted);
  font-family: var(--font-display);
  font-size: 12.5px; font-weight: 500; letter-spacing: 0.03em;
  text-decoration: none;
  border-radius: var(--radius);
  white-space: nowrap;
  transition: color var(--transition), background var(--transition);
  position: relative;
}
.header-nav ul li a i { font-size: 11px; opacity: 0.7; }
.header-nav ul li a:hover { color: var(--white); background: var(--hdr-hover-bg); }
.header-nav ul li a.active { color: var(--white); background: var(--hdr-active-bg); }
.header-nav ul li a.active::after {
  content: '';
  position: absolute; bottom: -1px; left: 14px; right: 14px;
  height: 2px; background: var(--white);
  border-radius: 2px 2px 0 0;
}

/* ============================================================
   CONTAINER
   ============================================================ */
.container { max-width: 1280px; margin: 0 auto; padding: 0 20px; }

/* ============================================================
   HERO / BANNER
   ============================================================ */
.hero-banner {
  background: var(--black);
  color: var(--white);
  padding: 52px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero-banner::before {
  content: '';
  position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M0 40L40 0H20L0 20M40 40V20L20 40'/%3E%3C/g%3E%3C/svg%3E");
}
.hero-banner .container { position: relative; }
.hero-banner h1 {
  font-family: var(--font-display);
  font-size: 2.4rem; font-weight: 800; letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.hero-banner p { font-size: 1.05rem; opacity: 0.65; margin-bottom: 28px; }
.hero-search {
  max-width: 560px; margin: 0 auto;
  display: flex;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.hero-search input {
  flex: 1; padding: 14px 20px;
  border: none; outline: none;
  font-size: 14px; font-family: var(--font-body);
  background: transparent; color: var(--white);
}
.hero-search input::placeholder { color: rgba(255,255,255,0.4); }
.hero-search button {
  background: var(--white); color: var(--black);
  border: none; padding: 14px 24px;
  cursor: pointer; font-size: 13px; font-weight: 700;
  font-family: var(--font-display); letter-spacing: 0.04em;
  transition: background var(--transition);
}
.hero-search button:hover { background: var(--gray-200); }

/* ============================================================
   SLIDER DE MARCAS
   ============================================================ */
.brands-slider-section {
  background: #0d1425;
  padding: 30px 0;
  border-top: 1px solid rgba(255,0,0,0.13);
  border-bottom: 1px solid rgba(255,0,0,0.13);
  overflow: hidden;
}
.brands-slider-label {
  text-align: center;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 3.5px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.18);
  margin: 0 0 22px;
  font-family: var(--font-display);
}
.brands-track-wrap {
  position: relative;
  overflow: hidden;
}
.brands-track-wrap::before,
.brands-track-wrap::after {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  width: 100px;
  z-index: 2;
  pointer-events: none;
}
.brands-track-wrap::before {
  left: 0;
  background: linear-gradient(to right, #0d1425 0%, transparent 100%);
}
.brands-track-wrap::after {
  right: 0;
  background: linear-gradient(to left, #0d1425 0%, transparent 100%);
}
.brands-track {
  display: flex;
  align-items: center;
  gap: 14px;
  width: max-content;
  padding: 4px 0;
  animation: brands-scroll 35s linear infinite;
}
.brands-track:hover { animation-play-state: paused; }
@keyframes brands-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
.brand-pill {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 12px 20px;
  min-width: 120px;
  height: 76px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255,255,255,0.06);
  background: rgba(255,255,255,0.04);
  cursor: default;
  transition: border-color .25s, background .25s, transform .2s;
  flex-shrink: 0;
}
.brand-pill:hover {
  border-color: rgba(255,0,0,0.33);
  background: rgba(255,0,0,0.07);
  transform: translateY(-3px);
}
.brand-pill img {
  width: auto;
  height: 30px;
  max-width: 95px;
  object-fit: contain;
  filter: grayscale(100%) brightness(1.8) opacity(45%);
  transition: filter .3s;
  display: block;
}
.brand-pill:hover img {
  filter: grayscale(0%) brightness(1) opacity(100%);
}
.brand-pill .brand-name {
  font-size: 12px;
  font-weight: 700;
  color: rgba(255,255,255,0.27);
  letter-spacing: 1px;
  text-align: center;
  text-transform: uppercase;
  font-family: var(--font-display);
  transition: color .25s;
  display: none;
}
.brand-pill:hover .brand-name { color: rgba(255,0,0,0.6); }
.brand-pill img.img-error               { display: none; }
.brand-pill img.img-error ~ .brand-name { display: block; }
.brand-pill:not(:has(img)) .brand-name  { display: block; }

/* ============================================================
   CATEGORIES BAR
   ============================================================ */
.categories-bar {
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  padding: 12px 0;
  overflow-x: auto;
}
.categories-bar .container { display: flex; gap: 8px; flex-wrap: nowrap; min-width: max-content; }
.cat-btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 7px 15px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--gray-700);
  font-size: 12.5px; font-family: var(--font-display); font-weight: 500;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition), color var(--transition);
  white-space: nowrap; text-decoration: none;
}
.cat-btn:hover, .cat-btn.active {
  border-color: var(--black);
  background: var(--black);
  color: var(--white);
}
.cat-btn i { font-size: 12px; }

/* ============================================================
   MAIN LAYOUT
   ============================================================ */
.main-layout {
  display: grid;
  grid-template-columns: 256px 1fr;
  gap: 24px;
  padding: 28px 0 48px;
}

/* ============================================================
   SIDEBAR FILTROS
   ============================================================ */
.filter-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 18px;
  margin-bottom: 14px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
}
.filter-card h3 {
  font-family: var(--font-display);
  font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--gray-500);
  margin-bottom: 12px;
  display: flex; align-items: center; gap: 7px;
}
.filter-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 7px 10px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  text-decoration: none;
  color: var(--gray-700);
  font-size: 13.5px;
}
.filter-item:hover { background: var(--gray-100); color: var(--black); }
.filter-item.active { background: var(--black); color: var(--white); }
.filter-badge {
  background: var(--gray-100);
  color: var(--gray-500);
  border-radius: var(--radius);
  padding: 1px 7px;
  font-size: 11px; font-weight: 600;
}
.filter-item.active .filter-badge { background: rgba(255,255,255,0.15); color: var(--white); }

/* Chips de marcas */
.filter-scroll-box {
  display: flex; flex-wrap: wrap; gap: 6px;
  max-height: 160px; overflow-y: auto;
  padding-right: 4px; margin-top: 6px;
}
.filter-scroll-box::-webkit-scrollbar       { width: 4px; }
.filter-scroll-box::-webkit-scrollbar-track { background: transparent; }
.filter-scroll-box::-webkit-scrollbar-thumb { background: var(--gray-300); border-radius: 4px; }
.filter-scroll-box { scrollbar-width: thin; scrollbar-color: var(--gray-300) transparent; }
.filter-chip {
  display: inline-block; padding: 3px 10px; border-radius: 999px;
  font-size: 12px; background: var(--gray-100); color: var(--gray-700);
  border: 1px solid var(--gray-200); text-decoration: none;
  white-space: nowrap; transition: background .15s, color .15s, border-color .15s; line-height: 1.6;
}
.filter-chip:hover  { background: var(--accent); color: var(--white); border-color: transparent; }
.filter-chip.active { background: var(--black); color: var(--white); border-color: transparent; font-weight: 600; }

/* Botón de toggle del sidebar en móvil */
.sidebar-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  background: var(--white);
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-size: 13px; font-weight: 600;
  color: var(--gray-700);
  cursor: pointer;
  transition: all var(--transition);
  width: 100%;
  margin-bottom: 12px;
}
.sidebar-toggle:hover { border-color: var(--black); color: var(--black); }
.sidebar-toggle i { font-size: 12px; }

.sidebar.collapsed .filter-card { display: none; }

/* ============================================================
   PRODUCTS AREA
   ============================================================ */
.products-toolbar {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px; flex-wrap: wrap; gap: 12px;
}
.products-count { color: var(--gray-500); font-size: 13.5px; }
.products-count strong { color: var(--black); font-family: var(--font-display); }
.toolbar-actions { display: flex; gap: 10px; align-items: center; }
.sort-select {
  padding: 7px 13px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius);
  font-size: 13px; font-family: var(--font-body);
  background: var(--white); color: var(--gray-700);
  cursor: pointer; outline: none;
  transition: border-color var(--transition);
}
.sort-select:focus { border-color: var(--gray-400); }

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 18px;
}

/* ============================================================
   PRODUCT CARD
   ============================================================ */
.product-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
  display: flex; flex-direction: column;
  position: relative;
}
.product-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
  border-color: var(--gray-400);
}
.product-badge {
  position: absolute; top: 10px; left: 10px;
  background: var(--black); color: var(--white);
  font-size: 10px; font-weight: 700; font-family: var(--font-display);
  padding: 3px 9px;
  border-radius: var(--radius);
  text-transform: uppercase; letter-spacing: 0.07em;
  z-index: 1;
}
.product-badge.featured { background: var(--gray-700); }
.product-img {
  height: 180px;
  background: var(--gray-100);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden; position: relative;
}
.product-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.product-card:hover .product-img img { transform: scale(1.05); }
.product-img .no-img { font-size: 48px; color: var(--gray-300); }
.product-body { padding: 14px 16px; flex: 1; display: flex; flex-direction: column; }
.product-category {
  font-size: 10.5px; font-family: var(--font-display);
  color: var(--gray-500); font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.07em; margin-bottom: 4px;
}
.product-name {
  font-family: var(--font-display);
  font-size: 14px; font-weight: 700;
  color: var(--gray-900); margin-bottom: 6px; line-height: 1.35;
}
.product-desc {
  font-size: 12.5px; color: var(--gray-500);
  margin-bottom: 10px; flex: 1; line-height: 1.5;
}
.product-meta {
  display: flex; gap: 10px;
  font-size: 11.5px; color: var(--gray-400);
  margin-bottom: 12px; flex-wrap: wrap;
}
.product-meta span { display: flex; align-items: center; gap: 4px; }
.product-footer { padding: 12px 16px; border-top: 1px solid var(--gray-100); }
.btn-add {
  width: 100%;
  background: var(--black); color: var(--white);
  border: none; padding: 9px 16px;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-size: 12.5px; font-weight: 600; letter-spacing: 0.02em;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  display: flex; align-items: center; justify-content: center; gap: 8px;
}
.btn-add:hover { background: var(--gray-700); transform: translateY(-1px); }
.btn-add.added { background: var(--success); }

/* ============================================================
   PAGINATION
   ============================================================ */
.pagination {
  display: flex; justify-content: center; align-items: center;
  gap: 5px; margin-top: 36px; flex-wrap: wrap;
}
.page-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius);
  background: var(--white); color: var(--gray-700);
  font-size: 13px; font-family: var(--font-display);
  cursor: pointer; transition: all var(--transition);
  text-decoration: none;
}
.page-btn:hover { border-color: var(--black); color: var(--black); background: var(--gray-50); }
.page-btn.active { background: var(--black); border-color: var(--black); color: var(--white); }
.page-btn.disabled { opacity: 0.35; pointer-events: none; }

/* ============================================================
   COTIZACIÓN PANEL
   ============================================================ */
.quote-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  z-index: 2000; display: none;
  align-items: stretch; justify-content: flex-end;
}
.quote-overlay.open { display: flex; }
.quote-panel {
  width: 420px; max-width: 100vw;
  background: var(--black-soft);
  display: flex; flex-direction: column;
  height: 100%;
  border-left: 1px solid var(--hdr-border);
  box-shadow: -8px 0 40px rgba(0,0,0,0.5);
  animation: slideInRight .22s ease;
}
@keyframes slideInRight {
  from { transform: translateX(100%); }
  to   { transform: translateX(0); }
}
.quote-header {
  padding: 20px 22px;
  border-bottom: 1px solid var(--hdr-border);
  display: flex; align-items: center; justify-content: space-between;
  flex-shrink: 0;
}
.quote-header h2 {
  font-family: var(--font-display);
  font-size: 15px; font-weight: 700; color: var(--white);
  display: flex; align-items: center; gap: 9px; letter-spacing: -0.01em;
}
.quote-header h2 i { font-size: 14px; opacity: 0.6; }
.btn-close-panel {
  background: var(--hdr-hover-bg);
  border: 1px solid var(--hdr-border);
  color: var(--hdr-muted);
  width: 30px; height: 30px;
  border-radius: var(--radius);
  font-size: 18px; cursor: pointer;
  transition: color var(--transition), background var(--transition);
  display: flex; align-items: center; justify-content: center;
}
.btn-close-panel:hover { color: var(--white); background: rgba(255,255,255,0.12); }

.quote-items {
  flex: 1; overflow-y: auto; padding: 16px 22px;
  scrollbar-width: thin; scrollbar-color: rgba(255,255,255,0.1) transparent;
}
.quote-empty { text-align: center; padding: 60px 20px; color: var(--hdr-muted); }
.quote-empty i { font-size: 48px; margin-bottom: 12px; display: block; opacity: 0.3; }

.quote-item {
  display: grid; grid-template-columns: 52px 1fr auto;
  gap: 12px; align-items: start;
  padding: 12px; background: rgba(255,255,255,0.05);
  border-radius: var(--radius);
  margin-bottom: 10px;
  border: 1px solid var(--hdr-border);
}
.quote-item-img {
  width: 52px; height: 52px; border-radius: var(--radius);
  object-fit: cover; background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden; flex-shrink: 0;
}
.quote-item-img img { width: 100%; height: 100%; object-fit: cover; }
.quote-item-img i { font-size: 20px; color: rgba(255,255,255,0.2); }
.quote-item-name { font-size: 12.5px; font-weight: 600; font-family: var(--font-display); color: var(--white); margin-bottom: 2px; }
.quote-item-meta { font-size: 11px; color: var(--hdr-muted); margin-bottom: 8px; }

.qty-control { display: flex; align-items: center; gap: 6px; }
.qty-btn {
  width: 26px; height: 26px;
  border: 1px solid var(--hdr-border);
  border-radius: 4px; background: rgba(255,255,255,0.06);
  cursor: pointer; font-size: 14px; font-weight: 700;
  color: var(--white); display: flex; align-items: center; justify-content: center;
  transition: background var(--transition), border-color var(--transition);
}
.qty-btn:hover { background: var(--white); color: var(--black); border-color: var(--white); }
.qty-input {
  width: 42px; text-align: center;
  border: 1px solid var(--hdr-border);
  border-radius: 4px; padding: 3px 4px;
  font-size: 13px; font-weight: 600;
  background: rgba(255,255,255,0.06); color: var(--white); outline: none;
}
.btn-remove-item {
  background: none; border: none; color: var(--hdr-muted);
  cursor: pointer; font-size: 15px;
  transition: color var(--transition); padding: 4px; flex-shrink: 0;
}
.btn-remove-item:hover { color: #ff5555; }

.quote-footer {
  padding: 16px 22px 22px;
  border-top: 1px solid var(--hdr-border);
  flex-shrink: 0; display: flex; flex-direction: column; gap: 10px;
}
.quote-form { display: flex; flex-direction: column; gap: 9px; }
.form-group { display: flex; flex-direction: column; gap: 4px; }
.form-group label {
  font-family: var(--font-display);
  font-size: 10.5px; font-weight: 600;
  color: var(--hdr-muted); letter-spacing: 0.09em; text-transform: uppercase;
}
.form-control {
  width: 100%;
  padding: 8px 11px;
  border: 1px solid var(--hdr-border);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.05); color: var(--white);
  font-family: var(--font-body); font-size: 13px;
  outline: none; transition: border-color var(--transition), background var(--transition);
  resize: vertical;
}
.form-control::placeholder { color: rgba(255,255,255,0.22); }
.form-control:focus { border-color: rgba(255,255,255,0.3); background: rgba(255,255,255,0.08); }

.btn-wa {
  width: 100%; background: var(--wa-green); color: var(--white);
  border: none; padding: 12px;
  border-radius: var(--radius);
  font-family: var(--font-display); font-size: 13.5px; font-weight: 700;
  cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 9px;
  transition: background var(--transition), transform var(--transition);
  letter-spacing: 0.02em;
}
.btn-wa:hover { background: var(--wa-green-hover); transform: translateY(-1px); }
.btn-clear {
  width: 100%; background: transparent;
  border: 1px solid var(--hdr-border); color: var(--hdr-muted);
  padding: 9px; border-radius: var(--radius);
  font-family: var(--font-body); font-size: 12.5px;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
  display: flex; align-items: center; justify-content: center; gap: 7px;
}
.btn-clear:hover { color: #ff5555; border-color: rgba(255,85,85,0.35); background: rgba(255,85,85,0.06); }

/* ============================================================
   SEARCH SUGGESTIONS
   ============================================================ */
.search-suggestions {
  position: absolute; top: calc(100% + 6px); left: 0; right: 0;
  background: var(--black-mid); border: 1px solid var(--hdr-border);
  border-radius: var(--radius); box-shadow: var(--shadow-xl);
  z-index: 500; display: none;
  max-height: 320px; overflow-y: auto;
}
.suggestion-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px; cursor: pointer;
  transition: background var(--transition);
  font-size: 13.5px; color: var(--white);
}
.suggestion-item:hover { background: rgba(255,255,255,0.07); }
.suggestion-item img { width: 36px; height: 36px; border-radius: 4px; object-fit: cover; }
.suggestion-item .no-img-icon {
  width: 36px; height: 36px;
  background: rgba(255,255,255,0.08); border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
  color: var(--hdr-muted);
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--black);
  color: rgba(255,255,255,0.5);
  padding: 48px 0 24px;
  margin-top: 48px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px; margin-bottom: 32px;
}
.footer-col h4 {
  font-family: var(--font-display);
  color: var(--white); font-size: 12px; margin-bottom: 14px;
  text-transform: uppercase; letter-spacing: 0.1em;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { color: rgba(255,255,255,0.45); font-size: 13px; transition: color var(--transition); }
.footer-col a:hover { color: var(--white); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 20px; text-align: center;
  font-size: 12px; color: rgba(255,255,255,0.25);
}

/* ============================================================
   BUTTONS (GLOBALES)
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 18px; border-radius: var(--radius);
  font-family: var(--font-display); font-size: 13px; font-weight: 600;
  cursor: pointer; transition: all var(--transition);
  border: none; text-decoration: none; letter-spacing: 0.02em;
}
.btn-primary { background: var(--black); color: var(--white); }
.btn-primary:hover { background: var(--gray-700); color: var(--white); }
.btn-secondary { background: var(--gray-100); color: var(--gray-700); border: 1.5px solid var(--gray-200); }
.btn-secondary:hover { background: var(--gray-200); color: var(--black); }
.btn-success { background: var(--success); color: var(--white); }
.btn-danger  { background: var(--danger);  color: var(--white); }
.btn-sm { padding: 6px 12px; font-size: 11.5px; }
.btn-icon { padding: 7px 10px; }

/* ============================================================
   ADMIN STYLES
   ============================================================ */
.admin-body { background: var(--gray-50); min-height: 100vh; }
.admin-topbar {
  background: var(--black); color: var(--white);
  padding: 0 24px; height: 58px;
  display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 100;
  box-shadow: 0 1px 0 rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.07);
}
.admin-brand {
  font-family: var(--font-display);
  font-size: 16px; font-weight: 700;
  display: flex; align-items: center; gap: 10px; color: var(--white);
}
.admin-brand i { color: var(--white); opacity: 0.6; }
.admin-user { display: flex; align-items: center; gap: 10px; font-size: 13.5px; }
.admin-user a { color: var(--hdr-muted); font-size: 13px; }
.admin-user a:hover { color: var(--white); }

.admin-layout { display: flex; min-height: calc(100vh - 58px); }
.admin-sidebar {
  width: 230px; background: var(--black-soft);
  flex-shrink: 0; padding: 20px 0;
  border-right: 1px solid rgba(255,255,255,0.07);
}
.admin-menu { list-style: none; }
.admin-menu-item a {
  display: flex; align-items: center; gap: 11px;
  padding: 10px 20px;
  color: var(--hdr-muted); font-size: 13.5px;
  transition: color var(--transition), background var(--transition);
  border-left: 2px solid transparent;
}
.admin-menu-item a:hover { color: var(--white); background: var(--hdr-hover-bg); }
.admin-menu-item a.active { color: var(--white); background: var(--hdr-active-bg); border-left-color: var(--white); }
.admin-menu-item a i { width: 16px; text-align: center; font-size: 13px; opacity: 0.7; }
.admin-menu-separator {
  font-size: 9.5px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.12em; color: rgba(255,255,255,0.2);
  padding: 16px 20px 6px;
}
.admin-content { flex: 1; padding: 28px; overflow-x: hidden; }
.page-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 24px; flex-wrap: wrap; gap: 12px;
}
.page-header h1 {
  font-family: var(--font-display);
  font-size: 20px; font-weight: 800; color: var(--black);
  display: flex; align-items: center; gap: 10px; letter-spacing: -0.01em;
}

.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  overflow: hidden;
}
.card-header {
  padding: 15px 20px;
  border-bottom: 1px solid var(--gray-200);
  display: flex; align-items: center; justify-content: space-between;
}
.card-header h3 { font-family: var(--font-display); font-size: 14px; font-weight: 700; color: var(--gray-900); }
.card-body { padding: 20px; }

.stat-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 18px; margin-bottom: 24px;
}
.stat-card {
  background: var(--white); border-radius: var(--radius-lg);
  padding: 20px; box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  display: flex; align-items: center; gap: 16px;
  transition: box-shadow var(--transition), border-color var(--transition);
}
.stat-card:hover { box-shadow: var(--shadow); border-color: var(--gray-300); }
.stat-icon {
  width: 48px; height: 48px; border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; background: var(--gray-100); color: var(--gray-700);
  flex-shrink: 0;
}
.stat-icon.blue   { background: var(--gray-100); color: var(--black); }
.stat-icon.orange { background: var(--gray-100); color: var(--gray-700); }
.stat-icon.green  { background: rgba(26,122,62,0.1); color: var(--success); }
.stat-icon.purple { background: var(--gray-100); color: var(--gray-500); }
.stat-info h3 { font-family: var(--font-display); font-size: 26px; font-weight: 800; color: var(--black); line-height: 1; margin-bottom: 3px; }
.stat-info p { font-size: 12.5px; color: var(--gray-400); }

/* TABLE */
.data-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.data-table th {
  background: var(--gray-50);
  padding: 10px 15px; text-align: left;
  font-family: var(--font-display); font-size: 10.5px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.07em;
  color: var(--gray-500); border-bottom: 1.5px solid var(--gray-200);
}
.data-table td {
  padding: 12px 15px; border-bottom: 1px solid var(--gray-100);
  color: var(--gray-900); vertical-align: middle;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--gray-50); }
.data-table .img-thumb { width: 42px; height: 42px; border-radius: var(--radius); object-fit: cover; border: 1px solid var(--gray-200); }

.badge {
  display: inline-flex; align-items: center;
  padding: 3px 9px; border-radius: var(--radius);
  font-size: 10.5px; font-weight: 700; font-family: var(--font-display);
  letter-spacing: 0.04em;
}
.badge-success { background: rgba(26,122,62,0.1); color: var(--success); }
.badge-danger  { background: rgba(185,28,28,0.1); color: var(--danger); }
.badge-primary { background: var(--gray-100); color: var(--gray-700); }
.badge-warning { background: rgba(146,64,14,0.1); color: var(--warning); }
.actions-cell { display: flex; gap: 6px; align-items: center; }

/* FORM ADMIN */
.admin-form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}
.form-label { display: block; font-family: var(--font-display); font-size: 11.5px; font-weight: 600; color: var(--gray-700); margin-bottom: 5px; letter-spacing: 0.04em; }
.form-label .req { color: var(--danger); }
.form-input, .form-select, .form-textarea {
  width: 100%; padding: 9px 13px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius);
  font-size: 13.5px; font-family: var(--font-body);
  color: var(--gray-900); outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  background: var(--white);
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--black);
  box-shadow: 0 0 0 3px rgba(0,0,0,0.06);
}
.form-textarea { resize: vertical; min-height: 90px; }
.form-check { display: flex; align-items: center; gap: 10px; cursor: pointer; font-size: 13.5px; }
.form-check input { width: 16px; height: 16px; cursor: pointer; accent-color: var(--black); }

.img-preview-box {
  width: 120px; height: 120px;
  border: 2px dashed var(--gray-200);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden; cursor: pointer;
  transition: border-color var(--transition);
  background: var(--gray-50);
}
.img-preview-box:hover { border-color: var(--black); }
.img-preview-box img { width: 100%; height: 100%; object-fit: cover; }
.img-preview-box i { font-size: 34px; color: var(--gray-300); }

.gallery-grid { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 10px; }
.gallery-thumb {
  width: 88px; height: 88px;
  border-radius: var(--radius); overflow: hidden;
  position: relative; border: 1.5px solid var(--gray-200);
}
.gallery-thumb img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumb .btn-del-img {
  position: absolute; top: 4px; right: 4px;
  background: rgba(0,0,0,0.75); color: var(--white);
  border: none; border-radius: 50%;
  width: 22px; height: 22px; font-size: 11px;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: background var(--transition);
}
.gallery-thumb .btn-del-img:hover { background: var(--danger); }

/* ALERT */
.alert { padding: 12px 15px; border-radius: var(--radius); font-size: 13.5px; margin-bottom: 16px; display: flex; align-items: center; gap: 10px; }
.alert-success { background: rgba(26,122,62,0.08); color: #155724; border: 1px solid rgba(26,122,62,0.2); }
.alert-danger  { background: rgba(185,28,28,0.08); color: #7f1111; border: 1px solid rgba(185,28,28,0.2); }
.alert-warning { background: rgba(146,64,14,0.08); color: #7c4209; border: 1px solid rgba(146,64,14,0.2); }
.alert-info    { background: var(--gray-100); color: var(--gray-700); border: 1px solid var(--gray-200); }

/* LOGIN */
.login-wrapper {
  min-height: 100vh;
  background: var(--black);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
.login-card {
  background: var(--black-soft);
  border: 1px solid var(--hdr-border);
  border-radius: var(--radius-xl);
  padding: 40px; width: 100%; max-width: 380px;
  box-shadow: var(--shadow-xl); text-align: center;
}
.login-card .login-logo { font-size: 40px; color: var(--white); margin-bottom: 8px; opacity: 0.8; }
.login-card h1 { font-family: var(--font-display); font-size: 20px; color: var(--white); margin-bottom: 6px; font-weight: 800; }
.login-card p { color: var(--hdr-muted); font-size: 13.5px; margin-bottom: 28px; }
.login-card .form-input {
  background: rgba(255,255,255,0.05); border-color: var(--hdr-border);
  color: var(--white);
}
.login-card .form-input::placeholder { color: rgba(255,255,255,0.25); }
.login-card .form-input:focus { border-color: rgba(255,255,255,0.35); box-shadow: 0 0 0 3px rgba(255,255,255,0.05); }

/* ============================================================
   BREADCRUMB
   ============================================================ */
.breadcrumb {
  display: flex; align-items: center; gap: 6px;
  font-size: 12.5px; color: var(--gray-400);
  margin-bottom: 20px; list-style: none;
}
.breadcrumb li + li::before { content: '/'; color: var(--gray-300); margin-right: 6px; }
.breadcrumb a { color: var(--gray-500); }
.breadcrumb a:hover { color: var(--black); }
.breadcrumb span { color: var(--gray-700); }

/* ============================================================
   TOAST
   ============================================================ */
.toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 9999; display: flex; flex-direction: column; gap: 8px; }
.toast {
  background: var(--black);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--white);
  padding: 12px 18px; border-radius: var(--radius);
  font-size: 13.5px; font-family: var(--font-body);
  box-shadow: var(--shadow-xl);
  display: flex; align-items: center; gap: 10px;
  animation: fadeInUp .25s ease; min-width: 240px;
}
.toast.success { border-left: 3px solid var(--success); }
.toast.error   { border-left: 3px solid var(--danger); }
.toast.info    { border-left: 3px solid rgba(255,255,255,0.4); }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }

/* ============================================================
   PRODUCT DETAIL
   ============================================================ */
.product-detail-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 40px; align-items: start;
}
.product-gallery { position: sticky; top: 80px; }
.main-image {
  width: 100%; height: 380px; object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  background: var(--gray-100);
}
.thumbnail-strip { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.thumb-img {
  width: 66px; height: 66px; border-radius: var(--radius);
  object-fit: cover; cursor: pointer;
  border: 1.5px solid var(--gray-200);
  transition: border-color var(--transition);
}
.thumb-img.active, .thumb-img:hover { border-color: var(--black); }

/* ============================================================
   LOADER / SPINNER
   ============================================================ */
.spinner {
  display: inline-block; width: 18px; height: 18px;
  border: 2.5px solid rgba(255,255,255,0.2);
  border-top-color: var(--white);
  border-radius: 50%;
  animation: spin .55s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================================
   RESPONSIVE — TABLET (≤ 1024px)
   ============================================================ */
@media (max-width: 1024px) {
  .main-layout {
    grid-template-columns: 220px 1fr;
    gap: 18px;
  }
  .products-grid {
    grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  }
  .header-search { max-width: 320px; }
}

/* ============================================================
   RESPONSIVE — MÓVIL GRANDE (≤ 900px)
   ============================================================ */
@media (max-width: 900px) {

  /* Layout principal: sidebar colapsa arriba */
  .main-layout {
    grid-template-columns: 1fr;
    padding: 16px 0 32px;
  }

  /* Mostrar botón toggle del sidebar */
  .sidebar-toggle { display: flex; }

  /* Sidebar colapsado por defecto en móvil */
  .sidebar { order: -1; }
  .sidebar.collapsed .filter-card { display: none; }

  /* Header top: ocultar texto auxiliar largo */
  .header-top .container { justify-content: center; }
  .header-top span:not(:first-child) { display: none; }

  /* Header main */
  .header-main .container {
    gap: 10px;
    flex-wrap: wrap;
  }
  .header-search {
    order: 3;
    max-width: 100%;
    width: 100%;
    min-width: unset;
  }

  /* Hero */
  .hero-banner { padding: 40px 0 36px; }
  .hero-banner h1 { font-size: 1.8rem; }
  .hero-banner p  { font-size: 0.95rem; }

  /* Stats del hero: apilan en 2 columnas */
  .hero-stats { gap: 10px; }
  .hero-stat  { font-size: 12px; padding: 5px 14px; }

  /* Buscador hero */
  .hero-search { max-width: 100%; }
  .hero-search input  { font-size: 13px; padding: 12px 14px; }
  .hero-search button { padding: 12px 16px; font-size: 12px; }

  /* Slider de marcas */
  .brands-slider-section { padding: 22px 0; }
  .brand-pill { min-width: 100px; height: 64px; padding: 8px 14px; }
  .brand-pill img { height: 24px; }
  .brand-pill .brand-name { font-size: 10px; }
  .brands-track-wrap::before,
  .brands-track-wrap::after { width: 50px; }

  /* Grilla de productos */
  .products-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 12px;
  }
  .product-img { height: 150px; }
  .product-name { font-size: 13px; }

  /* Toolbar */
  .products-toolbar { flex-direction: column; align-items: flex-start; gap: 8px; }
  .toolbar-actions  { width: 100%; justify-content: flex-end; }

  /* Panel cotización */
  .quote-panel { width: 100vw; border-left: none; }

  /* Admin sidebar: oculto */
  .admin-sidebar { display: none; }
  .admin-content { padding: 16px; }

  /* Producto detalle */
  .product-detail-grid { grid-template-columns: 1fr; gap: 24px; }
  .product-gallery { position: static; }
  .main-image { height: 280px; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 20px; }

  /* Toast: esquina inferior centrado */
  .toast-container { right: 12px; left: 12px; bottom: 16px; }
  .toast { min-width: unset; width: 100%; }
}

/* ============================================================
   RESPONSIVE — MÓVIL PEQUEÑO (≤ 480px)
   ============================================================ */
@media (max-width: 480px) {

  .container { padding: 0 14px; }

  /* Header */
  .header-top { display: none; } /* ocultar banda superior en pantallas muy pequeñas */
  .header-main { padding: 10px 0; }
  .logo-text span { display: none; } /* solo mostrar nombre del logo */
  .btn-cotizacion span { display: none; } /* solo ícono + badge */
  .btn-cotizacion { padding: 9px 12px; }

  /* Hero */
  .hero-banner { padding: 32px 0 28px; }
  .hero-banner h1 { font-size: 1.45rem; }
  .hero-banner p  { font-size: 0.88rem; margin-bottom: 18px; }

  /* Stats: solo 1 por fila */
  .hero-stats { flex-direction: column; align-items: center; gap: 8px; }
  .hero-stat  { width: 100%; max-width: 260px; justify-content: center; }

  /* Categorías bar */
  .categories-bar { padding: 8px 0; }
  .cat-btn { font-size: 11.5px; padding: 6px 11px; }

  /* Grilla de productos: 2 columnas fijas */
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .product-img { height: 130px; }
  .product-body { padding: 10px 12px; }
  .product-name { font-size: 12px; }
  .product-desc { display: none; } /* quitar descripción en pantallas muy pequeñas */
  .product-meta { display: none; } /* quitar meta en pantallas muy pequeñas */
  .product-footer { padding: 8px 12px; }
  .btn-add { font-size: 11.5px; padding: 7px 10px; }

  /* Paginación */
  .page-btn { width: 32px; height: 32px; font-size: 12px; }

  /* Stats admin */
  .stat-cards { grid-template-columns: 1fr 1fr; gap: 12px; }
  .stat-card  { padding: 14px; gap: 10px; }
  .stat-icon  { width: 38px; height: 38px; font-size: 16px; }
  .stat-info h3 { font-size: 20px; }

  /* Tablas admin: scroll horizontal */
  .card { overflow-x: auto; }
  .data-table { min-width: 520px; }

  /* Footer: 1 columna */
  .footer-grid { grid-template-columns: 1fr; }

  /* Slider marcas: más compacto */
  .brand-pill { min-width: 88px; height: 56px; padding: 6px 10px; gap: 4px; }
  .brand-pill img { height: 20px; }
  .brand-pill .brand-name { font-size: 9px; letter-spacing: 0.5px; }

  /* Login */
  .login-card { padding: 28px 20px; }
}

/* ============================================================
   RESPONSIVE — PANTALLAS MUY PEQUEÑAS (≤ 360px)
   ============================================================ */
@media (max-width: 360px) {
  .products-grid { grid-template-columns: 1fr; }
  .hero-banner h1 { font-size: 1.25rem; }
  .stat-cards { grid-template-columns: 1fr; }
}