/* ============================================================
   AutoRecambios — Design System Completo
   Mobile-first · CSS Custom Properties · Sin frameworks
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* ── Tokens globales ─────────────────────────────────────────── */
:root {
  /* Colores base */
  --bg:           #f8fafc;
  --surface:      #ffffff;
  --surface-2:    #f1f5f9;
  --surface-3:    #e2e8f0;
  --text:         #0f172a;
  --text-2:       #334155;
  --text-3:       #64748b;
  --text-4:       #94a3b8;
  --border:       #e2e8f0;
  --border-2:     #cbd5e1;

  /* Header oscuro */
  --nav-bg:       #0f172a;
  --nav-bg-2:     #1e293b;
  --nav-text:     #cbd5e1;
  --nav-text-h:   #ffffff;
  --nav-border:   rgba(255,255,255,.08);

  /* Acento principal */
  --primary:      #1d4ed8;
  --primary-d:    #1e40af;
  --primary-bg:   #eff6ff;
  --primary-ring: rgba(29,78,216,.2);

  /* Por categoría — se sobreescribe inline en cada página */
  --cat:          #1d4ed8;
  --cat-d:        #1e40af;
  --cat-bg:       #eff6ff;
  --cat-text:     #1e40af;
  --cat-ring:     rgba(29,78,216,.18);

  /* Estados */
  --success:      #16a34a;
  --success-bg:   #f0fdf4;
  --danger:       #dc2626;
  --danger-bg:    #fef2f2;
  --warning:      #d97706;
  --warning-bg:   #fffbeb;

  /* Tipografía */
  --font:         'Inter', system-ui, -apple-system, sans-serif;

  /* Espacios */
  --sp-1: .25rem;  --sp-2: .5rem;   --sp-3: .75rem;
  --sp-4: 1rem;    --sp-5: 1.25rem; --sp-6: 1.5rem;
  --sp-8: 2rem;    --sp-10: 2.5rem; --sp-12: 3rem;
  --sp-16: 4rem;   --sp-20: 5rem;   --sp-24: 6rem;

  /* Radios */
  --r:    8px;
  --r-sm: 4px;
  --r-lg: 12px;
  --r-xl: 16px;
  --r-2xl:20px;
  --r-full: 9999px;

  /* Sombras */
  --sh-xs: 0 1px 2px rgba(0,0,0,.05);
  --sh-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --sh:    0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.05);
  --sh-md: 0 10px 15px rgba(0,0,0,.08), 0 4px 6px rgba(0,0,0,.05);
  --sh-lg: 0 20px 25px rgba(0,0,0,.10), 0 10px 10px rgba(0,0,0,.04);

  /* Transiciones */
  --t:    180ms ease;
  --t-sl: 280ms ease;

  --max-w: 1280px;
}

/* ── Reset ───────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font: inherit; border: none; background: none; }
ul, ol { list-style: none; }
h1,h2,h3,h4 { line-height: 1.2; }

/* ── Container ───────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--sp-4);
}
@media (min-width: 640px)  { .container { padding: 0 var(--sp-6); } }
@media (min-width: 1024px) { .container { padding: 0 var(--sp-8); } }

/* ══════════════════════════════════════════════════════════════
   HEADER Y NAVEGACIÓN
══════════════════════════════════════════════════════════════ */
.site-header {
  background: var(--nav-bg);
  border-bottom: 1px solid var(--nav-border);
  position: sticky;
  top: 0;
  z-index: 200;
  box-shadow: 0 2px 16px rgba(0,0,0,.3);
}

/* ── Barra superior ─────────────────────────────────────────── */
.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  gap: var(--sp-4);
}
@media (min-width: 768px) { .header-top { height: 68px; } }

.site-logo {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  flex-shrink: 0;
  text-decoration: none;
}
.logo-icon {
  width: 38px; height: 38px;
  background: var(--cat, var(--primary));
  border-radius: var(--r-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform var(--t);
}
.site-logo:hover .logo-icon { transform: scale(1.08); }
.logo-icon svg { width: 22px; height: 22px; color: #fff; }
.logo-text { display: flex; flex-direction: column; line-height: 1.15; }
.logo-name {
  font-size: 1.1rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -.01em;
}
.logo-name em { color: var(--cat, var(--primary)); font-style: normal; }
.logo-sub { font-size: .65rem; color: var(--nav-text); text-transform: uppercase; letter-spacing: .08em; }

/* Hamburger */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  padding: var(--sp-2);
  border-radius: var(--r);
  border: 1px solid var(--nav-border);
  background: transparent;
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--t);
}
.nav-toggle:hover { background: rgba(255,255,255,.08); }
.nav-toggle span {
  height: 2px;
  background: var(--nav-text);
  border-radius: var(--r-full);
  transition: all var(--t-sl);
}
.nav-toggle span:nth-child(1) { width: 20px; }
.nav-toggle span:nth-child(2) { width: 16px; }
.nav-toggle span:nth-child(3) { width: 20px; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); width: 20px; }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); width: 20px; }
@media (min-width: 900px) { .nav-toggle { display: none; } }

/* ── Barra de categorías ─────────────────────────────────────── */
.cat-nav {
  background: var(--nav-bg-2);
  border-top: 1px solid var(--nav-border);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.cat-nav::-webkit-scrollbar { display: none; }
.cat-nav-inner {
  display: flex;
  align-items: center;
  min-width: max-content;
  gap: var(--sp-1);
  padding: var(--sp-2) 0;
}
.cat-nav-link {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--r-full);
  font-size: .82rem;
  font-weight: 600;
  color: var(--nav-text);
  white-space: nowrap;
  transition: all var(--t);
  position: relative;
}
.cat-nav-link svg { width: 16px; height: 16px; opacity: .75; flex-shrink: 0; }
.cat-nav-link:hover {
  background: rgba(255,255,255,.1);
  color: #fff;
}
.cat-nav-link:hover svg { opacity: 1; }
.cat-nav-link.active {
  background: var(--cat, var(--primary));
  color: #fff;
}
.cat-nav-link.active svg { opacity: 1; }

/* Mobile nav drawer */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
}
.mobile-nav-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.5);
  opacity: 0;
  transition: opacity var(--t-sl);
}
.mobile-nav-drawer {
  position: absolute;
  top: 0; left: 0;
  width: min(300px, 85vw);
  height: 100%;
  background: var(--nav-bg);
  transform: translateX(-100%);
  transition: transform var(--t-sl);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.mobile-nav.open { pointer-events: all; }
.mobile-nav.open .mobile-nav-overlay { opacity: 1; }
.mobile-nav.open .mobile-nav-drawer { transform: translateX(0); }

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-5) var(--sp-6);
  border-bottom: 1px solid var(--nav-border);
}
.drawer-close {
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--r);
  color: var(--nav-text);
  transition: all var(--t);
}
.drawer-close:hover { background: rgba(255,255,255,.1); color: #fff; }
.drawer-close svg { width: 18px; height: 18px; }

.drawer-links { padding: var(--sp-4) var(--sp-3); flex: 1; }
.drawer-section-title {
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--nav-text);
  padding: var(--sp-3) var(--sp-3) var(--sp-2);
  opacity: .6;
}
.drawer-link {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  border-radius: var(--r);
  font-size: .9rem;
  font-weight: 500;
  color: var(--nav-text);
  transition: all var(--t);
  margin-bottom: 2px;
}
.drawer-link svg { width: 18px; height: 18px; opacity: .7; }
.drawer-link:hover { background: rgba(255,255,255,.08); color: #fff; }
.drawer-link:hover svg { opacity: 1; }
.drawer-link.active { background: var(--cat, var(--primary)); color: #fff; }
.drawer-link.active svg { opacity: 1; }

/* ══════════════════════════════════════════════════════════════
   HERO — PÁGINA DE INICIO
══════════════════════════════════════════════════════════════ */
.hero-home {
  background: var(--nav-bg);
  padding: var(--sp-16) 0 var(--sp-12);
  position: relative;
  overflow: hidden;
}
.hero-home::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 80% at 100% 50%, rgba(29,78,216,.12), transparent);
  pointer-events: none;
}
.hero-home-inner {
  position: relative;
  max-width: 680px;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  background: rgba(29,78,216,.15);
  border: 1px solid rgba(29,78,216,.3);
  color: #93c5fd;
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--r-full);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
  margin-bottom: var(--sp-5);
}
.hero-eyebrow svg { width: 14px; height: 14px; }
.hero-home-title {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  color: #fff;
  letter-spacing: -.02em;
  line-height: 1.1;
  margin-bottom: var(--sp-5);
}
.hero-home-title mark {
  background: none;
  color: var(--cat, var(--primary));
}
.hero-home-desc {
  font-size: 1.05rem;
  color: #94a3b8;
  line-height: 1.75;
  margin-bottom: var(--sp-8);
  max-width: 520px;
}
.hero-stats {
  display: flex;
  gap: var(--sp-8);
  flex-wrap: wrap;
  padding-top: var(--sp-6);
  border-top: 1px solid var(--nav-border);
}
.hero-stat-num {
  font-size: 1.75rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}
.hero-stat-num span { color: var(--cat, var(--primary)); }
.hero-stat-lbl { font-size: .78rem; color: #94a3b8; text-transform: uppercase; letter-spacing: .06em; margin-top: 4px; }

/* ══════════════════════════════════════════════════════════════
   HERO — PÁGINAS DE CATEGORÍA
══════════════════════════════════════════════════════════════ */
.cat-hero {
  background: var(--nav-bg);
  padding: var(--sp-12) 0;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--nav-border);
}
.cat-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 100% at 90% 50%, var(--cat-ring, rgba(29,78,216,.12)), transparent);
  pointer-events: none;
}
.cat-hero::after {
  content: '';
  position: absolute;
  right: -60px; top: -60px;
  width: 300px; height: 300px;
  border-radius: 50%;
  background: var(--cat, var(--primary));
  opacity: .04;
  pointer-events: none;
}
.cat-hero-inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--sp-8);
  flex-wrap: wrap;
}
.cat-hero-icon {
  width: 80px; height: 80px;
  border-radius: var(--r-2xl);
  background: var(--cat-bg, var(--primary-bg));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid var(--cat-ring, var(--primary-ring));
}
.cat-hero-icon svg { width: 44px; height: 44px; color: var(--cat, var(--primary)); }
.cat-hero-content {}
.cat-hero-breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: .78rem;
  color: #64748b;
  margin-bottom: var(--sp-3);
  flex-wrap: wrap;
}
.cat-hero-breadcrumb a { color: #94a3b8; transition: color var(--t); }
.cat-hero-breadcrumb a:hover { color: #fff; }
.cat-hero-breadcrumb .sep { color: #334155; }
.cat-hero-breadcrumb .current { color: #cbd5e1; }
.cat-hero-title {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 800;
  color: #fff;
  letter-spacing: -.02em;
  margin-bottom: var(--sp-3);
  line-height: 1.1;
}
.cat-hero-desc { font-size: .95rem; color: #94a3b8; max-width: 560px; line-height: 1.7; }
.cat-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  margin-top: var(--sp-4);
  background: rgba(255,255,255,.05);
  border: 1px solid var(--nav-border);
  color: #94a3b8;
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--r-full);
  font-size: .78rem;
  font-weight: 600;
}
.cat-hero-badge span { color: var(--cat, var(--primary)); }
@media (min-width: 768px) {
  .cat-hero-icon { width: 96px; height: 96px; }
  .cat-hero-icon svg { width: 52px; height: 52px; }
}

/* ══════════════════════════════════════════════════════════════
   GRID DE CATEGORÍAS (index)
══════════════════════════════════════════════════════════════ */
.cat-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-3);
}
@media (min-width: 480px)  { .cat-cards { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 768px)  { .cat-cards { grid-template-columns: repeat(4, 1fr); gap: var(--sp-4); } }
@media (min-width: 1024px) { .cat-cards { grid-template-columns: repeat(5, 1fr); } }

.cat-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: var(--sp-6) var(--sp-5);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-3);
  text-align: center;
  transition: all var(--t-sl);
  overflow: hidden;
  cursor: pointer;
  text-decoration: none;
}
.cat-card::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--t-sl);
  background: linear-gradient(135deg, var(--c-bg, #eff6ff) 0%, transparent 60%);
}
.cat-card:hover {
  border-color: var(--c, var(--primary));
  box-shadow: var(--sh-md), 0 0 0 3px var(--c-ring, var(--primary-ring));
  transform: translateY(-3px);
}
.cat-card:hover::before { opacity: 1; }
.cat-card:focus-visible {
  outline: 2px solid var(--c, var(--primary));
  outline-offset: 2px;
}
.cat-card-icon {
  width: 56px; height: 56px;
  border-radius: var(--r-lg);
  background: var(--c-bg, var(--primary-bg));
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--t-sl);
  position: relative;
  flex-shrink: 0;
}
.cat-card-icon svg { width: 28px; height: 28px; color: var(--c, var(--primary)); }
.cat-card:hover .cat-card-icon { background: var(--c, var(--primary)); }
.cat-card:hover .cat-card-icon svg { color: #fff; }
.cat-card-name {
  font-size: .88rem;
  font-weight: 700;
  color: var(--text);
  position: relative;
  transition: color var(--t);
}
.cat-card:hover .cat-card-name { color: var(--c, var(--primary)); }
.cat-card-count { font-size: .75rem; color: var(--text-3); position: relative; }
.cat-card-arrow {
  position: relative;
  font-size: .75rem;
  color: var(--text-4);
  margin-top: auto;
  transition: all var(--t);
  display: flex;
  align-items: center;
  gap: 3px;
}
.cat-card:hover .cat-card-arrow { color: var(--c, var(--primary)); transform: translateX(3px); }

/* ══════════════════════════════════════════════════════════════
   SECCIÓN DE INTRO SEO
══════════════════════════════════════════════════════════════ */
.seo-intro {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: var(--sp-8);
  margin-bottom: var(--sp-8);
  border-left: 4px solid var(--cat, var(--primary));
}
.seo-intro__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: var(--sp-3);
}
.seo-intro__body {
  font-size: .9rem;
  color: var(--text-3);
  line-height: 1.8;
}
.seo-intro__body p + p { margin-top: var(--sp-3); }
.seo-intro__keywords {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-5);
}
.seo-kw {
  background: var(--cat-bg, var(--primary-bg));
  color: var(--cat-text, var(--primary-d));
  border: 1px solid var(--cat-ring, var(--primary-ring));
  padding: .2em .7em;
  border-radius: var(--r-full);
  font-size: .75rem;
  font-weight: 600;
}

/* ══════════════════════════════════════════════════════════════
   SECCIÓN DE BENEFICIOS / FEATURES
══════════════════════════════════════════════════════════════ */
.benefits-section {
  background: var(--nav-bg);
  padding: var(--sp-16) 0;
  margin-top: var(--sp-16);
  position: relative;
  overflow: hidden;
}
.benefits-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 100%, var(--cat-ring, rgba(29,78,216,.08)), transparent);
  pointer-events: none;
}
.benefits-inner { position: relative; }
.benefits-header {
  text-align: center;
  margin-bottom: var(--sp-12);
}
.benefits-header h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 800;
  color: #fff;
  letter-spacing: -.01em;
  margin-bottom: var(--sp-3);
}
.benefits-header p { font-size: .95rem; color: #94a3b8; }
.benefits-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-4);
}
@media (min-width: 640px)  { .benefits-grid { grid-template-columns: repeat(2,1fr); } }
@media (min-width: 1024px) { .benefits-grid { grid-template-columns: repeat(4,1fr); } }

.benefit-card {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--r-xl);
  padding: var(--sp-6) var(--sp-5);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  transition: all var(--t-sl);
}
.benefit-card:hover {
  background: rgba(255,255,255,.07);
  border-color: rgba(255,255,255,.14);
  transform: translateY(-2px);
}
.benefit-icon {
  width: 48px; height: 48px;
  border-radius: var(--r-lg);
  background: var(--cat-bg, var(--primary-bg));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.benefit-icon svg { width: 24px; height: 24px; color: var(--cat, var(--primary)); }
.benefit-title { font-size: .95rem; font-weight: 700; color: #f1f5f9; }
.benefit-desc { font-size: .82rem; color: #64748b; line-height: 1.6; }

/* ══════════════════════════════════════════════════════════════
   TIPS / CONSEJO DE CATEGORÍA
══════════════════════════════════════════════════════════════ */
.tips-section {
  padding: var(--sp-12) 0 var(--sp-16);
}
.tips-header {
  text-align: center;
  margin-bottom: var(--sp-10);
}
.tips-header h2 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 800;
  color: var(--text);
  letter-spacing: -.01em;
  margin-bottom: var(--sp-2);
}
.tips-header p { font-size: .9rem; color: var(--text-3); }
.tips-grid {
  display: grid;
  gap: var(--sp-4);
  grid-template-columns: 1fr;
}
@media (min-width: 640px)  { .tips-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .tips-grid { grid-template-columns: repeat(3,1fr); } }

.tip-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: var(--sp-6);
  display: flex;
  gap: var(--sp-4);
  align-items: flex-start;
  transition: all var(--t-sl);
}
.tip-card:hover { border-color: var(--cat, var(--primary)); box-shadow: var(--sh); }
.tip-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--cat, var(--primary));
  opacity: .25;
  line-height: 1;
  flex-shrink: 0;
  min-width: 2.5rem;
}
.tip-body {}
.tip-title { font-size: .95rem; font-weight: 700; color: var(--text); margin-bottom: var(--sp-2); }
.tip-desc { font-size: .82rem; color: var(--text-3); line-height: 1.65; }

/* ══════════════════════════════════════════════════════════════
   SECCIÓN: TÍTULO + TOOLBAR
══════════════════════════════════════════════════════════════ */
.products-section { padding: var(--sp-10) 0; }
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--sp-4);
  margin-bottom: var(--sp-6);
  flex-wrap: wrap;
}
.section-title-group {}
.section-label {
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--cat, var(--primary));
  margin-bottom: var(--sp-1);
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}
.section-label::before {
  content: '';
  width: 16px; height: 2px;
  background: var(--cat, var(--primary));
  border-radius: var(--r-full);
}
.section-title {
  font-size: clamp(1.15rem, 2.5vw, 1.5rem);
  font-weight: 800;
  color: var(--text);
  letter-spacing: -.01em;
}
.section-count { font-size: .85rem; color: var(--text-3); margin-top: 2px; }
.section-count strong { color: var(--text); font-weight: 700; }

/* Filtros */
.toolbar { display: flex; align-items: center; gap: var(--sp-3); flex-wrap: wrap; }
.select {
  appearance: none;
  background: var(--surface)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E")
    no-repeat right 10px center;
  border: 1px solid var(--border);
  border-radius: var(--r);
  color: var(--text);
  font-size: .85rem;
  font-family: var(--font);
  padding: .55rem 2.25rem .55rem .85rem;
  cursor: pointer;
  transition: border-color var(--t), box-shadow var(--t);
}
.select:focus {
  outline: none;
  border-color: var(--cat, var(--primary));
  box-shadow: 0 0 0 3px var(--cat-ring, var(--primary-ring));
}

/* ══════════════════════════════════════════════════════════════
   GRID DE PRODUCTOS
══════════════════════════════════════════════════════════════ */
.productos-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-3);
}
@media (min-width: 640px)  { .productos-grid { gap: var(--sp-4); } }
@media (min-width: 768px)  { .productos-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1024px) { .productos-grid { grid-template-columns: repeat(4, 1fr); } }
@media (min-width: 1280px) { .productos-grid { grid-template-columns: repeat(4, 1fr); } }

/* ── Tarjeta producto ────────────────────────────────────────── */
.tarjeta-producto {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--t-sl);
}
.tarjeta-producto:hover {
  border-color: var(--cat, var(--primary));
  box-shadow: var(--sh-md);
  transform: translateY(-3px);
}
.tarjeta-producto__enlace {
  display: flex;
  flex-direction: column;
  flex: 1;
  color: inherit;
}
.tarjeta-producto__enlace:focus-visible {
  outline: 2px solid var(--cat, var(--primary));
  outline-offset: 2px;
  border-radius: var(--r-xl);
}
.tarjeta-producto__imagen-wrap {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--surface-2);
}
.tarjeta-producto__imagen {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 350ms ease;
}
.tarjeta-producto:hover .tarjeta-producto__imagen { transform: scale(1.05); }
.tarjeta-producto__sin-imagen {
  width: 100%; height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-4);
}
.tarjeta-producto__sin-imagen svg { width: 38%; height: 38%; max-width: 80px; }
.tarjeta-producto__cuerpo {
  padding: .875rem 1rem 1rem;
  display: flex;
  flex-direction: column;
  gap: .35rem;
  flex: 1;
}
.tarjeta-producto__nombre {
  font-size: .88rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.tarjeta-producto__precios {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: .35rem;
  margin-top: auto;
  padding-top: .5rem;
}
.tarjeta-producto__stock { font-size: .75rem; font-weight: 500; }

/* Precios */
.precio-normal  { font-size: 1.1rem; font-weight: 800; color: var(--text); }
.precio-oferta  { font-size: 1.1rem; font-weight: 800; color: var(--danger); }
.precio-tachado { font-size: .82rem; color: var(--text-4); text-decoration: line-through; }

/* Stock */
.stock--disponible { color: var(--success); }
.stock--agotado    { color: var(--text-4); }

/* Badge oferta */
.badge--oferta {
  display: inline-flex;
  align-items: center;
  padding: .2em .55em;
  border-radius: var(--r-full);
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  background: var(--danger);
  color: #fff;
  position: absolute;
  top: .6rem;
  left: .6rem;
}

/* ── Skeletons ───────────────────────────────────────────────── */
.skeleton {
  background: linear-gradient(90deg, var(--surface-2) 25%, #e8edf2 50%, var(--surface-2) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--r);
}
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }
.skeleton-tarjeta {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  overflow: hidden;
}
.skeleton--imagen  { aspect-ratio: 4/3; width: 100%; border-radius: 0; }
.skeleton-tarjeta__cuerpo { padding: .875rem 1rem 1rem; display: flex; flex-direction: column; gap: .5rem; }
.skeleton--titulo  { height: .9rem; width: 85%; }
.skeleton--titulo2 { height: .9rem; width: 55%; }
.skeleton--precio  { height: 1.15rem; width: 40%; margin-top: .25rem; }

/* ── Estados ─────────────────────────────────────────────────── */
.estado-error, .estado-vacio {
  grid-column: 1/-1;
  text-align: center;
  padding: var(--sp-16) var(--sp-4);
}
.estado-error__icono { width: 48px; height: 48px; margin: 0 auto var(--sp-4); }
.estado-error__titulo { font-size: 1.1rem; font-weight: 700; color: var(--text); margin-bottom: var(--sp-2); }
.estado-error__desc { font-size: .875rem; color: var(--text-3); max-width: 380px; margin: 0 auto var(--sp-5); }
.sin-resultados { grid-column: 1/-1; text-align: center; padding: var(--sp-16); color: var(--text-3); }

/* ── Paginación ──────────────────────────────────────────────── */
.paginacion {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: .4rem;
  margin-top: var(--sp-10);
  flex-wrap: wrap;
}
.paginacion__btn {
  min-width: 40px; height: 40px;
  padding: 0 .6rem;
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: var(--surface);
  color: var(--text-3);
  font-size: .875rem;
  font-weight: 600;
  font-family: var(--font);
  transition: all var(--t);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
}
.paginacion__btn:hover:not(:disabled) {
  border-color: var(--cat, var(--primary));
  color: var(--cat, var(--primary));
  background: var(--cat-bg, var(--primary-bg));
}
.paginacion__btn--activo {
  background: var(--cat, var(--primary));
  border-color: var(--cat, var(--primary));
  color: #fff;
}
.paginacion__btn:disabled { opacity: .35; cursor: not-allowed; }
.paginacion__btn:focus-visible { outline: 2px solid var(--cat, var(--primary)); outline-offset: 2px; }
.paginacion__ellipsis { color: var(--text-4); padding: 0 .2rem; font-size: .875rem; }

/* ══════════════════════════════════════════════════════════════
   BOTONES
══════════════════════════════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: .65rem 1.25rem;
  border-radius: var(--r);
  font-size: .9rem;
  font-weight: 600;
  font-family: var(--font);
  transition: all var(--t-sl);
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
  border: none;
}
.btn:focus-visible { outline: 2px solid var(--cat, var(--primary)); outline-offset: 2px; }
.btn svg { width: 18px; height: 18px; flex-shrink: 0; }

.btn-primary {
  background: var(--cat, var(--primary));
  color: #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,.12);
}
.btn-primary:hover {
  background: var(--cat-d, var(--primary-d));
  box-shadow: var(--sh-md);
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent;
  color: var(--text-2);
  border: 1px solid var(--border);
}
.btn-outline:hover { border-color: var(--border-2); background: var(--surface-2); }

.btn-comprar {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  background: var(--cat, var(--primary));
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  font-family: var(--font);
  padding: .9rem 1.75rem;
  border-radius: var(--r-lg);
  box-shadow: 0 4px 14px var(--cat-ring, var(--primary-ring));
  transition: all var(--t-sl);
  text-decoration: none;
  border: none;
  cursor: pointer;
}
.btn-comprar:hover {
  background: var(--cat-d, var(--primary-d));
  box-shadow: 0 8px 24px var(--cat-ring, var(--primary-ring));
  transform: translateY(-1px);
}
.btn-comprar:focus-visible { outline: 2px solid var(--cat, var(--primary)); outline-offset: 3px; }
.btn-comprar svg { width: 18px; height: 18px; }

/* ══════════════════════════════════════════════════════════════
   DETALLE DE PRODUCTO
══════════════════════════════════════════════════════════════ */
.detalle-wrapper {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-8);
}
@media (min-width: 768px)  { .detalle-wrapper { grid-template-columns: 1fr 1fr; gap: var(--sp-10); align-items: start; } }
@media (min-width: 1024px) { .detalle-wrapper { grid-template-columns: 55% 1fr; gap: var(--sp-16); } }

.galeria__principal-wrap {
  aspect-ratio: 1;
  background: var(--surface-2);
  border-radius: var(--r-xl);
  overflow: hidden;
  border: 1px solid var(--border);
}
.galeria__imagen-principal {
  width: 100%; height: 100%;
  object-fit: contain;
  padding: var(--sp-4);
  transition: opacity 200ms ease;
}
.galeria__sin-imagen {
  aspect-ratio: 1;
  background: var(--surface-2);
  border-radius: var(--r-xl);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-4);
}
.galeria__sin-imagen svg { width: 25%; height: 25%; max-width: 100px; }
.galeria__miniaturas { display: flex; gap: var(--sp-2); margin-top: var(--sp-3); flex-wrap: wrap; }
.galeria__miniatura {
  width: 72px; height: 72px;
  border: 2px solid var(--border);
  border-radius: var(--r);
  overflow: hidden;
  padding: 2px;
  background: var(--surface-2);
  cursor: pointer;
  transition: border-color var(--t);
}
.galeria__miniatura img { width: 100%; height: 100%; object-fit: cover; border-radius: 4px; }
.galeria__miniatura--activa,
.galeria__miniatura:hover { border-color: var(--cat, var(--primary)); }
.galeria__miniatura:focus-visible { outline: 2px solid var(--cat, var(--primary)); outline-offset: 2px; }

.detalle__info { display: flex; flex-direction: column; gap: var(--sp-4); }
.detalle__categorias { display: flex; flex-wrap: wrap; gap: var(--sp-2); }
.detalle__categoria {
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--cat, var(--primary));
  background: var(--cat-bg, var(--primary-bg));
  padding: .2em .7em;
  border-radius: var(--r-full);
  transition: background var(--t);
}
.detalle__categoria:hover { filter: brightness(.95); }
.detalle__titulo { font-size: clamp(1.4rem, 3vw, 1.9rem); font-weight: 800; color: var(--text); letter-spacing: -.02em; }
.detalle__precios { display: flex; align-items: baseline; flex-wrap: wrap; gap: var(--sp-2); }
.detalle__precio-normal  { font-size: 1.75rem; font-weight: 800; color: var(--text); }
.detalle__precio-oferta  { font-size: 1.75rem; font-weight: 800; color: var(--danger); }
.detalle__precio-tachado { font-size: 1.05rem; color: var(--text-4); text-decoration: line-through; }
.detalle__stock { font-size: .9rem; font-weight: 600; }
.detalle__resumen {
  font-size: .9rem;
  color: var(--text-3);
  line-height: 1.75;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: var(--sp-4) 0;
}
.detalle__descripcion-completa {
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.detalle__descripcion-completa summary {
  font-size: .875rem;
  font-weight: 600;
  color: var(--text);
  padding: .85rem 1rem;
  cursor: pointer;
  background: var(--surface-2);
  user-select: none;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.detalle__descripcion-completa summary::-webkit-details-marker { display: none; }
.detalle__descripcion-completa summary::after {
  content: '↓';
  font-size: .8rem;
  color: var(--text-4);
  transition: transform var(--t);
}
.detalle__descripcion-completa[open] summary::after { transform: rotate(180deg); }
.detalle__descripcion-cuerpo {
  padding: var(--sp-4);
  font-size: .875rem;
  color: var(--text-3);
  line-height: 1.75;
}

/* Skeleton detalle */
#skeleton-detalle .detalle-wrapper { align-items: start; }
.skeleton-detalle__galeria { aspect-ratio: 1; border-radius: var(--r-xl); }
.skeleton-detalle__info { display: flex; flex-direction: column; gap: .75rem; }
.skeleton--cat   { height: .85rem; width: 22%; border-radius: var(--r-full); }
.skeleton--h1    { height: 1.6rem; width: 80%; }
.skeleton--h1b   { height: 1.6rem; width: 55%; }
.skeleton--price { height: 1.9rem; width: 35%; }
.skeleton--line  { height: .85rem; width: 100%; }
.skeleton--line2 { height: .85rem; width: 80%; }
.skeleton--btn   { height: 52px; width: 220px; border-radius: var(--r-lg); margin-top: .5rem; }

/* ══════════════════════════════════════════════════════════════
   PIE DE PÁGINA
══════════════════════════════════════════════════════════════ */
.site-footer {
  background: var(--nav-bg);
  border-top: 1px solid var(--nav-border);
  padding: var(--sp-12) 0 var(--sp-8);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-10);
  margin-bottom: var(--sp-10);
}
@media (min-width: 640px)  { .footer-grid { grid-template-columns: repeat(2,1fr); } }
@media (min-width: 1024px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; } }

.footer-brand {}
.footer-desc { font-size: .82rem; color: #64748b; line-height: 1.7; margin-top: var(--sp-3); max-width: 280px; }
.footer-col-title {
  font-size: .78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: #cbd5e1;
  margin-bottom: var(--sp-4);
}
.footer-links { display: flex; flex-direction: column; gap: var(--sp-2); }
.footer-link { font-size: .85rem; color: #64748b; transition: color var(--t); display: flex; align-items: center; gap: var(--sp-2); }
.footer-link:hover { color: #cbd5e1; }
.footer-link svg { width: 14px; height: 14px; flex-shrink: 0; }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-4);
  padding-top: var(--sp-6);
  border-top: 1px solid var(--nav-border);
  font-size: .78rem;
  color: #475569;
}
.footer-bottom a { color: var(--cat, var(--primary)); }
.footer-bottom a:hover { text-decoration: underline; }

/* ══════════════════════════════════════════════════════════════
   UTILS
══════════════════════════════════════════════════════════════ */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border-width: 0; }
.skip-link {
  position: absolute; top: -100%; left: 1rem;
  background: var(--primary); color: #fff;
  padding: .5rem 1rem; border-radius: var(--r); font-weight: 600; z-index: 9999;
  transition: top var(--t);
}
.skip-link:focus { top: 1rem; }

.main-content { padding-bottom: var(--sp-16); }

:focus-visible { outline: 2px solid var(--cat, var(--primary)); outline-offset: 2px; }
::selection { background: var(--cat-bg, var(--primary-bg)); color: var(--cat-text, var(--primary-d)); }

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--surface-2); }
::-webkit-scrollbar-thumb { background: var(--surface-3); border-radius: var(--r-full); }
::-webkit-scrollbar-thumb:hover { background: var(--border-2); }