/* ============================================================
   TechFit — hoja de estilos principal (v4)
   Rediseño completo según el handoff de Claude Design
   ("TechFit Web.dc.html" + "TechFit Brand Identity.dc.html"):
   paleta, tipografía, espaciados y radios en valores exactos.
   Ancho de diseño: 1440px. Padding de página: 64px desktop,
   20-24px mobile.
   ============================================================ */

:root {
  /* Marca */
  --navy: #14181c;        /* Carbón */
  --cream: #fafaf8;       /* Hueso */
  --cream-card: #ffffff;
  --mint: #00d9a6;        /* Menta (primario) */
  --mint-dark: #00a87f;   /* Menta oscuro — el mismo acento sobre fondo claro */
  --mint-ink: #0c4b3b;    /* texto sobre fondo menta */
  --coral: #e8674a;       /* Coral (acento puntual) */

  /* Grises (sobre oscuro y sobre claro) */
  --g900: #1f2429;
  --g850: #252b31;
  --g800: #2a2f34;
  --g700: #3a3f44;
  --g600: #4a4e52;
  --g500: #6b7076;
  --g450: #7a7f84;
  --g400: #8a8e92;
  --g350: #9a9fa4;
  --g300: #b8bcc0;
  --g250: #c8cac6;
  --g200: #e2e3e0;
  --g100: #f2f3f0;

  --ink: var(--navy);
  --ink-muted: var(--g500);
  --ink-soft: var(--g350);
  --border: var(--g200);

  --radius: 2px;
  --radius-lg: 2px;
  --radius-pill: 100px;
  --max-width: 1440px;
  --gutter: 64px;
  --gutter-mobile: 20px;
  --shadow: 0 6px 20px rgba(0, 0, 0, 0.18);
  --shadow-panel: 0 12px 48px rgba(0, 0, 0, 0.14);
  font-size: 16px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  line-height: 1.5;
  scroll-behavior: smooth;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
  box-sizing: border-box;
}

@media (max-width: 640px) {
  .container { padding: 0 var(--gutter-mobile); }
}

/* ---------- Banner superior ---------- */

.top-banner {
  background: var(--mint);
  color: var(--navy);
  text-align: center;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 12px var(--gutter);
}

@media (max-width: 640px) {
  .top-banner { padding: 9px 20px; font-size: 11px; letter-spacing: 0.8px; }
}

/* ---------- Header / nav ---------- */

header.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--navy);
}

.nav {
  padding: 24px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

@media (max-width: 640px) { .nav { padding: 18px 20px; } }

.logo { display: flex; align-items: center; flex-shrink: 0; }

.nav-links { display: flex; gap: 36px; align-items: center; }
.nav-links a { font-size: 15px; font-weight: 500; color: var(--cream); }
.nav-links a.active { color: var(--mint); font-weight: 700; }
.nav-links a:hover { color: var(--mint); }

.nav-search {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 220px;
  background: var(--g900);
  border-radius: var(--radius);
  padding: 10px 14px;
  color: var(--g450);
}
.nav-search input {
  background: none;
  border: none;
  outline: none;
  color: var(--cream);
  font-size: 14px;
  width: 100%;
  font-family: inherit;
}
.nav-search input::placeholder { color: var(--g450); }

.nav-right { display: flex; gap: 24px; align-items: center; flex-shrink: 0; }
.nav-right > span { font-size: 14px; color: var(--cream); }

.cart-btn {
  background: none;
  border: none;
  color: var(--cream);
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
}
.cart-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--mint);
  color: var(--navy);
  font-size: 11px;
  font-weight: 700;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span { width: 22px; height: 2px; background: var(--cream); display: block; }

@media (max-width: 900px) {
  .nav-links, .nav-search, .nav-right > span:first-child { display: none; }
  .hamburger { display: flex; }

  .nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--navy);
    border-top: 1px solid var(--g800);
    padding: 8px 20px 16px;
    z-index: 40;
  }
  .nav-links.mobile-open a { padding: 12px 0; border-bottom: 1px solid var(--g800); }
  header.site-header { position: sticky; }
  .nav { position: relative; }
}

/* ---------- Hero / carrusel ---------- */

.hero {
  background: var(--navy);
  position: relative;
  height: 520px;
  overflow: hidden;
}

@media (max-width: 900px) { .hero { height: auto; } }

.hero-slide {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.hero-slide.active { opacity: 1; visibility: visible; pointer-events: auto; }

.hero-copy { padding: 0 var(--gutter); display: flex; flex-direction: column; gap: 28px; max-width: 620px; }
.hero-kicker { font-size: 13px; font-weight: 700; letter-spacing: 3px; text-transform: uppercase; }
.hero-slide h1 {
  font-size: clamp(2.4rem, 4vw, 66px);
  font-weight: 800;
  letter-spacing: -2.5px;
  color: var(--cream);
  line-height: 1.05;
  margin: 0;
}
.hero-lead { font-size: 19px; color: var(--g300); line-height: 1.6; max-width: 420px; margin: 0; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }

.hero-visual {
  height: 520px;
  background: repeating-linear-gradient(135deg, var(--g900), var(--g900) 14px, var(--g850) 14px, var(--g850) 28px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--g500);
  font-size: 14px;
  letter-spacing: 1px;
  font-family: monospace;
}

@media (max-width: 900px) {
  .hero-slide { position: relative; opacity: 1; visibility: visible; pointer-events: auto; display: block; padding: 40px 20px 0; }
  .hero-slide:not(.active) { display: none; }
  .hero-copy { padding: 0 0 44px; max-width: none; gap: 20px; }
  .hero-slide h1 { font-size: 40px; letter-spacing: -1.8px; }
  .hero-actions .btn { width: 100%; text-align: center; }
  .hero-visual { height: 280px; margin: 0 -20px; }
}

.hero-arrow {
  position: absolute;
  top: 50%;
  margin-top: -24px;
  width: 48px;
  height: 48px;
  background: rgba(250, 250, 248, 0.10);
  color: var(--cream);
  font-size: 22px;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 5;
}
.hero-arrow:hover { background: rgba(250, 250, 248, 0.18); }
.hero-arrow.prev { left: 20px; }
.hero-arrow.next { right: 20px; }

.hero-dots { position: absolute; left: var(--gutter); bottom: 28px; display: flex; gap: 10px; align-items: center; z-index: 5; }
.hero-dot { width: 34px; height: 4px; background: rgba(250, 250, 248, 0.28); border: none; cursor: pointer; padding: 0; }
.hero-dot.active { background: var(--mint); }

@media (max-width: 900px) { .hero-arrow, .hero-dots { display: none; } }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 17px 34px;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s ease, border-color 0.15s ease, opacity 0.15s ease;
  text-align: center;
}
.btn-block { width: 100%; }
.btn-primary { background: var(--mint); color: var(--navy); }
.btn-primary:hover { background: #00c298; }
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-dark { background: var(--navy); color: #ffffff; }
.btn-dark:hover { background: var(--g900); }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--ink); padding: 16px 33px; }
.btn-outline:hover { border-color: var(--ink); }
.btn-outline-light { background: transparent; border: 1px solid var(--g700); color: var(--cream); padding: 16px 33px; }
.btn-outline-light:hover { border-color: var(--cream); }
.btn-mint-outline { background: transparent; border: 1px solid var(--mint-dark); color: var(--mint-dark); padding: 17px 33px; }
.btn-mint-outline:hover { background: var(--g100); }

/* ---------- Value / trust strip ---------- */

.trust-bar {
  background: var(--cream);
  border-bottom: 1px solid var(--border);
}
.trust-bar-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.trust-bar-item {
  padding: 36px 24px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-left: 1px solid var(--border);
}
.trust-bar-item:first-child { border-left: none; padding-left: 0; }
.trust-bar-item:last-child { padding-right: 0; }
.trust-bar-item strong { font-size: 15px; font-weight: 700; color: var(--ink); }
.trust-bar-item span { font-size: 14px; color: var(--ink-muted); }

@media (max-width: 750px) {
  .trust-bar-grid { grid-template-columns: 1fr 1fr; }
  .trust-bar-item { border-left: none; padding: 20px 0; border-top: 1px solid var(--border); }
  .trust-bar-item:nth-child(-n+2) { border-top: none; }
}

/* ---------- Section headers ---------- */

section { padding: 80px 0; }
section.tight { padding-top: 0; }

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 32px;
  gap: 20px;
  flex-wrap: wrap;
}
.section-head h2 { font-size: 38px; font-weight: 800; letter-spacing: -1.5px; color: var(--ink); margin: 0; }
.section-head .see-all { font-size: 15px; font-weight: 600; color: var(--mint-dark); }
.section-head .see-all:hover { color: var(--ink); }

@media (max-width: 640px) {
  section { padding: 44px 0; }
  .section-head h2 { font-size: 28px; letter-spacing: -1px; }
}

/* ---------- Category cards ---------- */

.category-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

.category-card { display: flex; flex-direction: column; }
.category-card .thumb {
  height: 260px;
  background: repeating-linear-gradient(135deg, var(--g200), var(--g200) 12px, #d5d6d3 12px, #d5d6d3 24px);
  display: flex;
  align-items: flex-end;
  padding: 20px;
}
.category-card .body { padding: 18px 0 0; display: flex; flex-direction: column; gap: 4px; }
.category-card h3 { font-size: 19px; font-weight: 700; color: var(--ink); margin: 0; }
.category-card span { font-size: 14px; color: var(--ink-muted); }
.category-card:hover h3 { color: var(--mint-dark); }

@media (max-width: 900px) { .category-grid { grid-template-columns: 1fr 1fr; } }

/* ---------- Tabs (más vendidos) ---------- */

.tab-row { display: flex; gap: 10px; flex-wrap: wrap; }
.tab-btn {
  border: 1px solid var(--border);
  background: transparent;
  padding: 9px 18px;
  font-size: 14px;
  color: var(--ink-muted);
  border-radius: var(--radius);
  cursor: pointer;
  font-family: inherit;
}
.tab-btn.active { color: var(--ink); font-weight: 600; border-color: var(--ink); }

/* ---------- Product cards ---------- */

.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

.product-card {
  background: var(--cream-card);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
}
.product-card:hover { border-color: var(--ink); }

.product-card .thumb {
  height: 230px;
  background: repeating-linear-gradient(135deg, #f0f1ee, #f0f1ee 12px, #e6e7e4 12px, #e6e7e4 24px);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.thumb-label { font-family: monospace; font-size: 12px; color: var(--g350); }

/* Fotos reales de producto: pisan el fondo rayado placeholder cuando existen */
.thumb.has-photo, .pdp-thumb.has-photo, .pdp-main-image.has-photo { background: var(--cream-card, #f0f1ee); }
.thumb.has-photo img, .pdp-thumb.has-photo img, .pdp-main-image.has-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.pdp-main-image.has-photo iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}
.pdp-thumb { position: relative; }
.pdp-thumb-play {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
  background: rgba(20, 24, 28, 0.35);
  pointer-events: none;
}

.product-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 5px 10px;
  color: var(--navy);
}
.product-tag.tag-new { background: var(--mint); }
.product-tag.tag-sale { background: var(--coral); color: #ffffff; }
.product-tag.tag-soon { background: var(--navy); color: #ffffff; }

.product-card .body { padding: 20px; display: flex; flex-direction: column; gap: 10px; }
.product-card .cat { font-size: 12px; color: var(--g350); text-transform: uppercase; letter-spacing: 0.5px; }
.product-card h3 { font-size: 17px; font-weight: 700; color: var(--ink); line-height: 1.3; margin: 0; }
.price-row { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.price { font-size: 22px; font-weight: 800; color: var(--ink); }
.price-old { font-size: 14px; color: var(--g350); text-decoration: line-through; }
.price-installments { font-size: 13px; color: var(--mint-dark); font-weight: 600; }
.add-row { margin-top: 4px; }

@media (max-width: 900px) { .product-grid { grid-template-columns: 1fr 1fr; } }

/* ---------- Banners ---------- */

.banners { display: flex; flex-direction: column; gap: 20px; }

.banner-big {
  height: 300px;
  background: repeating-linear-gradient(135deg, var(--g200), var(--g200) 14px, #d5d6d3 14px, #d5d6d3 28px);
  display: flex;
  align-items: center;
  padding: 0 56px;
  position: relative;
}
.banner-big .banner-card {
  background: var(--navy);
  padding: 36px 40px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 440px;
}
.banner-big .banner-kicker { font-size: 12px; font-weight: 700; letter-spacing: 2.5px; text-transform: uppercase; color: var(--mint); }
.banner-big h3 { font-size: 36px; font-weight: 800; letter-spacing: -1.5px; color: var(--cream); line-height: 1.1; margin: 0; }
.banner-big p { font-size: 15px; color: var(--g300); line-height: 1.5; margin: 0; }
.banner-big .banner-photo-label { position: absolute; right: 56px; bottom: 20px; font-family: monospace; font-size: 12px; color: var(--g400); }

.banner-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.banner-small {
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 180px;
  justify-content: center;
}
.banner-small.mint { background: var(--mint); }
.banner-small.mint h3 { color: var(--navy); }
.banner-small.mint p { color: var(--mint-ink); }
.banner-small.mint .banner-link { color: var(--navy); }
.banner-small.dark { background: var(--navy); }
.banner-small.dark h3 { color: var(--cream); }
.banner-small.dark p { color: var(--g300); }
.banner-small.dark .banner-link { color: var(--mint); }
.banner-small h3 { font-size: 26px; font-weight: 800; letter-spacing: -1px; line-height: 1.15; margin: 0; }
.banner-small p { font-size: 15px; line-height: 1.5; margin: 0; }
.banner-small .banner-link { font-size: 15px; font-weight: 700; }

@media (max-width: 700px) {
  .banner-big { padding: 0 24px; height: auto; min-height: 340px; }
  .banner-big .banner-card { max-width: none; }
  .banner-pair { grid-template-columns: 1fr; }
}

/* ---------- Ecosystem / app ---------- */

.ecosystem { background: var(--navy); padding: 0; }
.ecosystem-grid { display: grid; grid-template-columns: 1fr 1fr; align-items: center; }
.ecosystem-visual {
  height: 480px;
  background: repeating-linear-gradient(135deg, var(--g900), var(--g900) 14px, var(--g850) 14px, var(--g850) 28px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--g500);
  font-size: 14px;
  letter-spacing: 1px;
  font-family: monospace;
}
.ecosystem-copy { padding: 80px var(--gutter); display: flex; flex-direction: column; gap: 24px; }
.ecosystem-copy .eyebrow { font-size: 13px; font-weight: 700; letter-spacing: 3px; text-transform: uppercase; color: var(--mint); }
.ecosystem-copy h2 { font-size: 44px; font-weight: 800; letter-spacing: -1.5px; color: var(--cream); line-height: 1.1; margin: 0; }
.feature-list { display: flex; flex-direction: column; gap: 20px; }
.feature-item { display: flex; gap: 16px; align-items: baseline; }
.feature-num { font-size: 14px; font-weight: 800; color: var(--mint); min-width: 24px; }
.feature-item h4 { font-size: 17px; font-weight: 700; color: var(--cream); margin: 0 0 4px; }
.feature-item p { font-size: 15px; color: var(--g400); line-height: 1.5; margin: 0; }

@media (max-width: 800px) {
  .ecosystem-grid { grid-template-columns: 1fr; }
  .ecosystem-visual { height: 260px; }
  .ecosystem-copy { padding: 44px 20px; }
  .ecosystem-copy h2 { font-size: 32px; }
}

/* ---------- Newsletter ---------- */

.newsletter { background: var(--mint); padding: 64px var(--gutter); }
.newsletter-row { display: flex; align-items: center; justify-content: space-between; gap: 48px; flex-wrap: wrap; max-width: var(--max-width); margin: 0 auto; }
.newsletter h3 { margin: 0 0 8px; font-size: 32px; font-weight: 800; letter-spacing: -1px; color: var(--navy); }
.newsletter p { margin: 0; font-size: 16px; color: var(--mint-ink); }
.newsletter-form { display: flex; gap: 10px; flex-wrap: wrap; }
.newsletter-form input {
  padding: 16px 20px;
  width: 280px;
  max-width: 100%;
  border: none;
  font-size: 15px;
  color: var(--ink);
  font-family: inherit;
}
.newsletter-form input::placeholder { color: var(--g350); }

@media (max-width: 640px) {
  .newsletter { padding: 44px 20px; }
  .newsletter-row { flex-direction: column; align-items: flex-start; gap: 24px; }
  .newsletter-form { width: 100%; }
  .newsletter-form input { width: 100%; }
  .newsletter-form button { width: 100%; }
}

/* ---------- Footer ---------- */

.site-footer { background: var(--navy); padding: 64px var(--gutter) 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; max-width: var(--max-width); margin: 0 auto; padding-bottom: 48px; }
.footer-grid p { font-size: 15px; color: var(--g450); line-height: 1.6; max-width: 300px; margin: 12px 0 0; }
.footer-grid h4 { color: #ffffff; margin: 0 0 12px; font-size: 13px; text-transform: uppercase; letter-spacing: 1px; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.footer-grid ul a { font-size: 15px; color: var(--g450); }
.footer-grid ul a:hover { color: var(--mint); }
.footer-social { margin-top: 20px; font-size: 15px; color: var(--cream); }
.footer-bottom {
  border-top: 1px solid var(--g800);
  padding: 24px var(--gutter);
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  max-width: var(--max-width);
  margin: 0 auto;
}
.footer-bottom span, .footer-bottom a { font-size: 13px; color: var(--g500); }

@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 550px) {
  .site-footer { padding: 44px 20px 0; }
  .footer-grid { grid-template-columns: 1fr; padding-bottom: 24px; }
  .footer-bottom { padding: 20px; flex-direction: column; }
}

/* ---------- Breadcrumbs ---------- */

.breadcrumbs { font-size: 13px; color: var(--g350); padding: 28px 0 0; }
.breadcrumbs a { color: var(--g350); }
.breadcrumbs a:hover { color: var(--ink); }

/* ============================================================
   Listado de categoría
   ============================================================ */

.listing-grid { display: grid; grid-template-columns: 260px 1fr; gap: 48px; padding: 0 0 80px; }

.filters { display: flex; flex-direction: column; gap: 32px; }
.filter-group { display: flex; flex-direction: column; gap: 14px; border-top: 1px solid var(--border); padding-top: 24px; }
.filter-group:first-child { border-top: none; padding-top: 0; }
.filter-group h5 { font-size: 13px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; color: var(--ink); margin: 0; }

.filter-check { display: flex; align-items: center; gap: 10px; font-size: 15px; color: var(--g600); cursor: pointer; }
.filter-check input[type="checkbox"] {
  appearance: none;
  width: 16px;
  height: 16px;
  border: 1px solid var(--g250);
  background: #fff;
  margin: 0;
  cursor: pointer;
  flex-shrink: 0;
  position: relative;
}
.filter-check input[type="checkbox"]:checked { background: var(--navy); border-color: var(--navy); }
.filter-check input[type="checkbox"]:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 2px;
  width: 4px;
  height: 8px;
  border: solid #fff;
  border-width: 0 1.5px 1.5px 0;
  transform: rotate(45deg);
}

.price-range-inputs { display: flex; align-items: center; gap: 10px; }
.price-range-inputs input {
  border: 1px solid var(--border);
  background: #fff;
  padding: 10px 12px;
  font-size: 14px;
  color: var(--g600);
  flex: 1;
  width: 0;
  font-family: inherit;
  border-radius: var(--radius);
}
.price-range-sep { font-size: 14px; color: var(--g350); }

.listing-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border);
  padding-bottom: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}
.listing-toolbar .count { font-size: 14px; color: var(--ink-muted); }
.active-filter-chips { display: flex; gap: 8px; flex-wrap: wrap; }
.active-chip {
  background: var(--mint);
  color: var(--navy);
  font-size: 13px;
  font-weight: 600;
  padding: 7px 12px;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.listing-results { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

.pagination { display: flex; gap: 8px; align-items: center; padding-top: 24px; }
.page-btn {
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  color: var(--ink);
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  cursor: pointer;
  font-family: inherit;
}
.page-btn.active { background: var(--navy); color: #ffffff; border-color: var(--navy); }
.page-btn.next { width: auto; padding: 0 16px; }

@media (max-width: 800px) {
  .listing-grid { grid-template-columns: 1fr; }
  .listing-results { grid-template-columns: 1fr 1fr; }
}

/* ============================================================
   Ficha de producto (PDP)
   ============================================================ */

.pdp-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; padding: 32px 0 80px; }

.pdp-gallery { display: flex; gap: 16px; }
.pdp-thumbs { display: flex; flex-direction: column; gap: 12px; }
.pdp-thumb {
  width: 76px;
  height: 76px;
  background: repeating-linear-gradient(135deg, #f0f1ee, #f0f1ee 8px, #e6e7e4 8px, #e6e7e4 16px);
  border: 1px solid var(--border);
  cursor: pointer;
  flex-shrink: 0;
}
.pdp-thumb.active { border: 2px solid var(--navy); }
.pdp-main-image {
  flex: 1;
  height: 560px;
  background: repeating-linear-gradient(135deg, #f0f1ee, #f0f1ee 14px, #e6e7e4 14px, #e6e7e4 28px);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: monospace;
  font-size: 14px;
  color: var(--g350);
  letter-spacing: 1px;
}

.pdp-cat { font-size: 12px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--mint-dark); margin-bottom: 10px; }
.pdp-title { font-size: 44px; font-weight: 800; letter-spacing: -1.5px; color: var(--ink); line-height: 1.1; margin: 0 0 10px; }
.pdp-sku { font-size: 14px; color: var(--ink-muted); margin-bottom: 24px; }

.pdp-price-row { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; border-top: 1px solid var(--border); padding-top: 24px; margin-top: 0; }
.pdp-price { font-size: 42px; font-weight: 800; letter-spacing: -1.5px; color: var(--ink); }
.pdp-sale-badge { background: var(--mint); color: var(--navy); font-size: 12px; font-weight: 700; padding: 5px 10px; }
.pdp-installments { font-size: 15px; color: var(--mint-dark); font-weight: 600; border-bottom: 1px solid var(--border); padding-bottom: 24px; margin-bottom: 24px; }

.color-row { margin-bottom: 24px; }
.color-row h5 { font-size: 14px; font-weight: 700; margin: 0 0 12px; color: var(--ink); }
.color-swatches { display: flex; gap: 10px; }
.color-swatch { width: 44px; height: 44px; border: 1px solid var(--border); cursor: pointer; }
.color-swatch.selected { border: 2px solid var(--navy); box-shadow: inset 0 0 0 3px var(--cream); }

.qty-row { margin-bottom: 12px; }
.qty-control { display: flex; align-items: center; border: 1px solid var(--border); }
.qty-control button {
  width: 44px;
  height: 44px;
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 18px;
  color: var(--g500);
  font-family: inherit;
}
.qty-control span { font-size: 17px; font-weight: 700; color: var(--ink); min-width: 28px; text-align: center; }

.pdp-actions { display: flex; flex-direction: column; gap: 12px; margin-bottom: 24px; }
.pdp-actions .qty-and-add { display: flex; gap: 12px; align-items: stretch; }
.pdp-actions .qty-and-add .btn { flex: 1; }

.pdp-bullets { display: flex; flex-direction: column; gap: 12px; background: var(--g100); padding: 24px; }
.bullet { font-size: 15px; color: var(--ink); }
.bullet strong { font-weight: 700; }

@media (max-width: 800px) { .pdp-grid { grid-template-columns: 1fr; gap: 32px; } }

/* ---------- PDP specs (franja oscura) ---------- */

.pdp-specs-band { background: var(--navy); padding: 80px 0; }
.pdp-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}
.pdp-details h3 { font-size: 32px; font-weight: 800; letter-spacing: -1px; color: var(--cream); margin: 0 0 20px; }
.pdp-details p { font-size: 16px; color: var(--g300); line-height: 1.7; margin: 0; }
.spec-row { display: flex; justify-content: space-between; padding: 14px 0; border-bottom: 1px solid var(--g800); font-size: 15px; }
.spec-row span:first-child { color: var(--g450); }
.spec-row span:last-child { color: var(--cream); font-weight: 600; }

@media (max-width: 800px) {
  .pdp-specs-band { padding: 44px 0; }
  .pdp-details { grid-template-columns: 1fr; gap: 32px; }
}

.related-heading { font-size: 32px; font-weight: 800; letter-spacing: -1px; color: var(--ink); margin: 80px 0 32px; }
.pdp-related .thumb { height: 200px; }

@media (max-width: 800px) { .related-heading { margin: 44px 0 24px; font-size: 26px; } }

/* ============================================================
   Carrito / Checkout
   ============================================================ */

.checkout-stepper { display: flex; gap: 32px; align-items: center; }
.step { display: flex; align-items: center; gap: 10px; }
.step-circle {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid var(--g700);
  color: var(--g450);
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.step.active .step-circle { background: var(--mint); color: var(--navy); border: none; font-weight: 700; }
.step-label { font-size: 14px; color: var(--g450); }
.step.active .step-label { color: var(--cream); font-weight: 600; }

@media (max-width: 700px) { .checkout-stepper { gap: 16px; } .step-label { display: none; } }

.checkout-grid { display: grid; grid-template-columns: 1fr 400px; gap: 56px; padding: 48px 0 80px; align-items: flex-start; }
.checkout-grid h1 { font-size: 38px; font-weight: 800; letter-spacing: -1.5px; color: var(--ink); margin: 0 0 28px; }

.cart-line { display: flex; gap: 20px; padding: 24px 0; border-top: 1px solid var(--border); align-items: center; }
.cart-line:last-child { border-bottom: 1px solid var(--border); }
.cart-line .thumb-sm {
  width: 96px;
  height: 96px;
  background: repeating-linear-gradient(135deg, #f0f1ee, #f0f1ee 10px, #e6e7e4 10px, #e6e7e4 20px);
  flex-shrink: 0;
}
.cart-line .info { flex: 1; display: flex; flex-direction: column; gap: 6px; }
.cart-line h5 { font-size: 18px; font-weight: 700; color: var(--ink); margin: 0; }
.cart-line .meta { font-size: 14px; color: var(--ink-muted); }
.cart-line .stock-note { font-size: 13px; color: var(--mint-dark); font-weight: 600; }
.cart-line .qty-control { flex-shrink: 0; }
.cart-line .qty-control button { width: 34px; height: 40px; }
.cart-line strong { width: 110px; text-align: right; font-size: 20px; font-weight: 800; color: var(--ink); flex-shrink: 0; }

@media (max-width: 640px) {
  .cart-line { flex-wrap: wrap; }
  .cart-line strong { width: auto; margin-left: auto; }
}

.coupon-row { display: flex; gap: 12px; align-items: stretch; margin-top: 28px; }
.coupon-row input {
  border: 1px solid var(--border);
  background: #fff;
  padding: 15px 18px;
  font-size: 15px;
  color: var(--ink);
  width: 280px;
  max-width: 100%;
  font-family: inherit;
}
.coupon-row .btn-outline { padding: 15px 26px; border: 1px solid var(--navy); }

.shipping-box { background: var(--g100); padding: 28px; display: flex; flex-direction: column; gap: 16px; margin-top: 28px; }
.shipping-box > h3 { margin: 0; font-size: 18px; font-weight: 700; color: var(--ink); }
.shipping-option {
  display: flex;
  gap: 14px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--border);
  padding: 18px;
  cursor: pointer;
}
.shipping-option.selected { border: 2px solid var(--navy); padding: 17px; }
.shipping-option .radio { width: 18px; height: 18px; border-radius: 50%; border: 1px solid var(--g250); flex-shrink: 0; }
.shipping-option.selected .radio { border: 5px solid var(--navy); }
.shipping-option .label { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.shipping-option h5 { font-size: 16px; font-weight: 700; color: var(--ink); margin: 0; }
.shipping-option span { font-size: 14px; color: var(--ink-muted); }
.shipping-option .price-free { font-weight: 700; color: var(--mint-dark); white-space: nowrap; }
.shipping-option .price-paid { font-weight: 700; color: var(--ink); white-space: nowrap; }

.form-card { display: flex; flex-direction: column; gap: 16px; margin-top: 28px; }
.form-card h3 { margin: 0; font-size: 18px; font-weight: 700; color: var(--ink); }
.field label { display: block; font-size: 13px; color: var(--ink-muted); margin-bottom: 6px; font-weight: 600; }
.field input, .field textarea {
  width: 100%;
  padding: 13px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: #fff;
  color: var(--ink);
  font-size: 0.95rem;
  font-family: inherit;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--navy); }

.summary-card { display: flex; flex-direction: column; gap: 20px; background: var(--navy); padding: 36px; height: max-content; }
.summary-card h3 { margin: 0; font-size: 22px; font-weight: 800; letter-spacing: -0.5px; color: var(--cream); }
.summary-line { display: flex; justify-content: space-between; font-size: 15px; color: var(--g450); }
.summary-line span:last-child { color: var(--cream); font-weight: 600; }
.summary-line.discount span:last-child { color: var(--mint); }
.summary-line.total { border-top: 1px solid var(--g800); margin-top: 6px; padding-top: 20px; align-items: baseline; }
.summary-line.total span:first-child { font-size: 17px; font-weight: 700; color: var(--cream); }
.summary-line.total span:last-child { font-size: 34px; font-weight: 800; letter-spacing: -1px; color: var(--cream); }
.summary-installments { font-size: 14px; color: var(--mint); font-weight: 600; }
.summary-card .btn-primary { padding: 19px 0; }
.summary-payment-label { font-size: 13px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; color: var(--g450); border-top: 1px solid var(--g800); padding-top: 20px; margin-top: 4px; }
.summary-note { font-size: 13px; color: var(--g500); line-height: 1.6; margin: 0; }
.summary-payment-text { font-size: 14px; color: var(--g300); line-height: 1.6; margin: 6px 0 0; }

/* ---------- Insignia "Página segura" ---------- */

.secure-badge { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--ink-muted); }
.secure-badge svg { flex-shrink: 0; }
.secure-badge strong { color: var(--ink); font-weight: 700; }
.summary-card .secure-badge { color: var(--g300); }
.summary-card .secure-badge strong { color: var(--cream); }

@media (max-width: 900px) { .checkout-grid { grid-template-columns: 1fr; gap: 32px; padding: 32px 0 60px; } }

/* ---------- Cart drawer ---------- */

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(20, 24, 28, 0.5);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 70;
}
.overlay.open { opacity: 1; pointer-events: auto; }

.cart-drawer {
  position: fixed;
  top: 0;
  right: 0;
  height: 100%;
  width: min(400px, 92vw);
  background: var(--cream-card);
  border-left: 1px solid var(--border);
  z-index: 80;
  transform: translateX(100%);
  transition: transform 0.25s ease;
  display: flex;
  flex-direction: column;
}
.cart-drawer.open { transform: translateX(0); }

.cart-header { padding: 20px; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--border); }
.cart-items { flex: 1; overflow-y: auto; padding: 12px 20px; display: flex; flex-direction: column; gap: 14px; }
.cart-item { display: flex; gap: 12px; align-items: center; border-bottom: 1px solid var(--border); padding-bottom: 12px; }
.cart-item .thumb-sm {
  width: 56px;
  height: 56px;
  overflow: hidden;
  background: repeating-linear-gradient(135deg, #efeee7, #efeee7 6px, #e6e4d9 6px, #e6e4d9 12px);
  flex-shrink: 0;
}
.cart-item .info { flex: 1; }
.cart-item h5 { font-size: 0.86rem; margin: 0 0 4px; }
.qty-btn {
  width: 26px;
  height: 26px;
  border: 1px solid var(--border);
  background: #fff;
  cursor: pointer;
  font-size: 0.9rem;
}
.remove-link { color: var(--coral); font-size: 0.78rem; cursor: pointer; background: none; border: none; padding: 0; font-weight: 600; }
.cart-footer { border-top: 1px solid var(--border); padding: 18px 20px; }
.cart-total-row { display: flex; justify-content: space-between; font-weight: 800; font-size: 1.05rem; margin-bottom: 14px; }
.empty-cart { color: var(--ink-muted); text-align: center; padding: 40px 10px; font-size: 0.88rem; }

/* ============================================================
   Chatbot "Asistente TechFit"
   ============================================================ */

.chat-float {
  position: fixed;
  bottom: 22px;
  right: 22px;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 60;
}

.chat-float-tooltip {
  background: var(--navy);
  color: var(--cream);
  padding: 13px 18px;
  font-size: 14px;
  font-weight: 600;
  box-shadow: var(--shadow);
  white-space: nowrap;
}

.chat-float-btn {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--mint);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.20);
  cursor: pointer;
  transition: transform 0.15s ease;
  flex-shrink: 0;
}
.chat-float-btn:hover { transform: scale(1.06); }

@media (max-width: 640px) {
  .chat-float { bottom: 16px; right: 16px; }
  .chat-float-tooltip { display: none; }
}

.chat-panel {
  position: fixed;
  bottom: 96px;
  right: 22px;
  width: min(380px, calc(100vw - 32px));
  max-height: min(580px, calc(100vh - 130px));
  background: var(--cream-card);
  box-shadow: var(--shadow-panel);
  z-index: 81;
  display: none;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--border);
}
.chat-panel.open { display: flex; }

.chat-panel-header {
  background: var(--navy);
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.chat-panel-header .who { display: flex; align-items: center; gap: 12px; }
.chat-avatar { flex-shrink: 0; display: flex; align-items: center; }
.chat-panel-header .who strong { display: block; font-size: 15px; color: var(--cream); }
.chat-status { display: flex; align-items: center; gap: 6px; margin-top: 2px; }
.chat-status .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--mint); }
.chat-status span { font-size: 12px; color: var(--g450); }
.chat-panel-header button { background: none; border: none; color: var(--g450); font-size: 18px; cursor: pointer; }
.chat-panel-header button:hover { color: var(--cream); }

.chat-body {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: var(--g100);
}

.chat-bubble { padding: 14px 16px; font-size: 14px; line-height: 1.55; max-width: 290px; }
.chat-bubble-bot { background: #fff; border: 1px solid var(--border); color: var(--ink); align-self: flex-start; }
.chat-bubble-user { background: var(--mint); color: var(--navy); font-weight: 600; align-self: flex-end; }

.chat-chips { display: flex; flex-wrap: wrap; gap: 8px; padding: 0 20px 16px; background: var(--g100); }
.chat-chip {
  border: 1px solid var(--navy);
  background: var(--cream-card);
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
  padding: 9px 14px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  font-family: inherit;
}
.chat-chip:hover { background: var(--g100); }
.chat-chip:disabled { opacity: 0.45; cursor: default; }

.chat-endrow { display: flex; gap: 8px; padding: 0 20px 16px; background: var(--g100); flex-wrap: wrap; }
.chat-endrow .btn-outline {
  border: 1px solid var(--g250);
  color: var(--g600);
  font-size: 13px;
  padding: 8px 13px;
  border-radius: var(--radius-pill);
  font-weight: 500;
}
.chat-endrow .btn-dark {
  font-size: 13px;
  padding: 8px 13px;
  border-radius: var(--radius-pill);
  font-weight: 500;
}

.chat-input-row {
  border-top: 1px solid var(--border);
  background: var(--cream-card);
  padding: 14px 16px;
  display: flex;
  gap: 10px;
  align-items: center;
}
.chat-input-row input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 14px;
  font-family: inherit;
  color: var(--ink);
}
.chat-input-row input::placeholder { color: var(--g350); }
.chat-input-row button {
  background: var(--navy);
  color: var(--cream);
  border: none;
  font-size: 13px;
  font-weight: 700;
  padding: 11px 18px;
  cursor: pointer;
  font-family: inherit;
}