/* ==========================================================================
   Homoffiz México — Home
   Paleta y tipografía según Mini Manual de Identidad Visual Homoffiz
   ========================================================================== */

:root {
  --color-primary: #1E5B82;
  --color-primary-dark: #16465F;
  --color-accent: #6AC4FC;
  --color-slate: #3B4952;
  --color-gray-blue: #7E98A7;
  --color-mid-blue: #3B5D73;
  --color-dark: #1C2A33;
  --color-cream: #F7F5F1;
  --color-white: #FFFFFF;

  --font-body: "Lato", -apple-system, BlinkMacSystemFont, sans-serif;

  --container-width: 1240px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6.5rem;

  --radius: 2px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 300;
  color: var(--color-slate);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  line-height: 1.2;
  letter-spacing: 0.02em;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font-family: inherit; cursor: pointer; }

::selection { background: var(--color-accent); color: var(--color-dark); }

/* ----- Foco de teclado ----- */
a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}
.swatch:focus-visible { outline: none; }
.swatch:focus-visible .swatch__chip { outline: 2px solid var(--color-accent); outline-offset: 3px; }

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-primary);
  color: #fff;
  padding: 0.75rem 1.25rem;
  z-index: 200;
}
.skip-link:focus { left: var(--space-2); top: var(--space-2); }

/* ----- Tipografía según retícula de marca ----- */
h1, h2, h3 {
  font-family: var(--font-body);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  line-height: 1.5;
  font-weight: 900;
  margin: 0;
}

h1 { font-size: clamp(2rem, 4.5vw, 3.4rem); letter-spacing: 0.04em; line-height: 1.15; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.05rem; letter-spacing: 0.08em; }

.overline {
  text-transform: lowercase;
  letter-spacing: 0.1em;
  line-height: 1.2;
  color: var(--color-mid-blue);
  font-weight: 700;
  font-size: 0.85rem;
  margin: 0 0 var(--space-2);
}
.overline::first-letter { text-transform: uppercase; }
.overline--center { text-align: center; }

p { margin: 0 0 var(--space-2); letter-spacing: 0.03em; line-height: 1.65; }

.section { padding-block: var(--space-6); }
.section__head { max-width: 640px; margin-bottom: var(--space-5); }
.section__head h2 { margin-top: var(--space-1); }

/* ----- Botones ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.95rem 1.9rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: transform 0.2s var(--ease), background-color 0.25s var(--ease), color 0.25s var(--ease), box-shadow 0.25s var(--ease);
  border: 1px solid transparent;
  white-space: nowrap;
  transform: translate(var(--mx, 0), var(--my, 0));
}
.btn:hover { transform: translate(var(--mx, 0), var(--my, 0)) translateY(-2px); box-shadow: 0 10px 24px -8px rgba(30,91,130,0.45); }
.btn:active { transform: translate(var(--mx, 0), var(--my, 0)) translateY(0) scale(0.97); box-shadow: none; }
.btn--ghost:hover { box-shadow: none; }

.btn--primary { background: var(--color-primary); color: #fff; }
.btn--primary:hover { background: var(--color-primary-dark); }

.btn--accent { background: var(--color-accent); color: var(--color-dark); }
.btn--accent:hover { background: #8fd2fd; }

.btn--ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,0.6); }
.btn--ghost:hover { background: rgba(255,255,255,0.12); }

.btn--outline { background: transparent; color: var(--color-primary); border-color: rgba(30,91,130,0.3); }
.btn--outline:hover { background: rgba(30,91,130,0.06); border-color: var(--color-primary); }

.btn--lg { padding: 1.15rem 2.4rem; font-size: 0.9rem; }
.btn--sm { padding: 0.6rem 1.3rem; font-size: 0.75rem; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.link-arrow::after { content: "→"; transition: transform 0.25s var(--ease); }
.link-arrow:hover::after { transform: translateX(4px); }

/* ----- Breadcrumb ----- */
.breadcrumb {
  padding-block: var(--space-2);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  color: var(--color-slate);
  opacity: 0.85;
}
.breadcrumb a { color: var(--color-mid-blue); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb__sep { margin: 0 0.4rem; opacity: 0.6; }
.breadcrumb__current { color: var(--color-dark); font-weight: 700; }

/* ----- Header ----- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  border-bottom: 1px solid rgba(30,91,130,0.08);
}
.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  backdrop-filter: blur(8px);
  pointer-events: none;
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 0.85rem;
  gap: var(--space-3);
}
.site-header__logo img { height: 34px; width: auto; }

.main-nav ul { display: flex; gap: var(--space-4); }
.main-nav a {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-slate);
  position: relative;
  padding-bottom: 4px;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s var(--ease);
}
.main-nav a:hover::after { transform: scaleX(1); }

/* ----- Menú desplegable de navegación ----- */
.nav-item-wrap { display: inline-flex; align-items: center; gap: 3px; }
.has-dropdown { position: relative; }
.dropdown-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  background: none;
  border: none;
  padding: 0;
  color: inherit;
  cursor: pointer;
}
.dropdown-toggle__icon { width: 10px; height: 7px; transition: transform 0.25s var(--ease); }
.has-dropdown:hover .dropdown-toggle__icon,
.has-dropdown:focus-within .dropdown-toggle__icon,
.has-dropdown.is-dropdown-open .dropdown-toggle__icon { transform: rotate(180deg); }

.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  display: flex;
  gap: var(--space-4);
  background: var(--color-white);
  border-radius: var(--radius);
  box-shadow: 0 18px 40px rgba(28,42,51,0.16);
  padding: calc(var(--space-3) + 14px) var(--space-4) var(--space-3);
  min-width: 360px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s var(--ease);
  z-index: 10;
}
.has-dropdown:hover .nav-dropdown,
.has-dropdown:focus-within .nav-dropdown,
.has-dropdown.is-dropdown-open .nav-dropdown {
  opacity: 1;
  pointer-events: auto;
}
.nav-dropdown--single { min-width: 180px; }
.nav-dropdown__col { min-width: 140px; }
.nav-dropdown__heading {
  display: block;
  font-size: 0.72rem !important;
  font-weight: 700 !important;
  text-transform: uppercase !important;
  letter-spacing: 0.08em !important;
  color: var(--color-primary) !important;
  margin-bottom: var(--space-2);
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(30,91,130,0.12);
}
.nav-dropdown__col ul { display: flex; flex-direction: column; gap: 0.65rem; }
.nav-dropdown__col ul a {
  font-size: 0.82rem !important;
  font-weight: 400 !important;
  text-transform: none !important;
  letter-spacing: 0.02em !important;
  color: var(--color-slate) !important;
}
.nav-dropdown__col ul a:hover { color: var(--color-primary) !important; }
.nav-dropdown a::after { display: none; }

.site-header__actions { display: flex; align-items: center; gap: var(--space-3); }

.nav-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  margin-right: -6px;
  background: none;
  border: none;
  padding: 0;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-dark);
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ----- Hero ----- */
.hero {
  position: relative;
  min-height: 88svh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: var(--color-dark);
}
.hero__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  animation: hero-kenburns 22s ease-in-out infinite alternate;
  will-change: transform;
}

@keyframes hero-kenburns {
  from { transform: scale(1); }
  to   { transform: scale(1.09); }
}
.hero__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(15,25,31,0.88) 0%, rgba(15,25,31,0.45) 55%, rgba(15,25,31,0.25) 100%);
}
.hero__content {
  position: relative;
  color: #fff;
  padding-block: var(--space-5) var(--space-6);
  max-width: 800px;
}
.hero__content .overline { color: rgba(255,255,255,0.75); font-size: 0.95rem; }
.overline__highlight {
  color: var(--color-accent);
  font-weight: 900;
  letter-spacing: 0.12em;
}
.overline__nocase { text-transform: none; }
.hero h1 { color: #fff; margin-bottom: var(--space-3); }
.hero__lead {
  font-size: 1.05rem;
  max-width: 46ch;
  color: rgba(255,255,255,0.88);
  margin-bottom: var(--space-4);
}
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); }

.hero__content .overline,
.hero h1,
.hero__lead,
.hero__actions {
  opacity: 0;
  transform: translateY(16px);
  animation: hero-in 0.8s var(--ease) forwards;
}
.hero__content .overline { animation-delay: 0.1s; }
.hero h1 { animation-delay: 0.22s; }
.hero__lead { animation-delay: 0.36s; }
.hero__actions { animation-delay: 0.5s; }

@keyframes hero-in {
  to { opacity: 1; transform: translateY(0); }
}

/* ----- Barra de progreso de scroll ----- */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: var(--color-accent);
  z-index: 110;
  transition: width 0.1s linear;
}

/* ----- Intro / Sobre Homoffiz ----- */
.section--intro { background: var(--color-cream); }
.intro__grid { max-width: 760px; }
.intro__text p:last-child { margin-bottom: 0; }

/* ----- Productos ----- */
.product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}
.product-card {
  display: flex;
  flex-direction: column;
  background: var(--color-white);
  perspective: 1200px;
}
.product-card__media {
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border-radius: var(--radius);
  transform: rotateX(var(--ry, 0)) rotateY(var(--rx, 0));
  transition: transform 0.35s var(--ease);
  transform-style: preserve-3d;
}
.product-card__media a { display: block; height: 100%; }
.product-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}
.product-card:hover .product-card__media img { transform: scale(1.06); }
.product-card__body { padding-top: var(--space-3); }
.product-card__body h3 { margin-bottom: var(--space-1); }
.product-card__body p { max-width: 44ch; }

/* ----- Filtros de galería ----- */
.gallery-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}
.filter-btn {
  padding: 0.6rem 1.2rem;
  border-radius: 999px;
  border: 1px solid rgba(30,91,130,0.25);
  background: transparent;
  color: var(--color-mid-blue);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: background-color 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.filter-btn:hover { border-color: var(--color-primary); }
.filter-btn:active { transform: scale(0.96); }
.filter-btn.is-active { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }

.gallery-item.is-hidden {
  display: none;
}
.gallery-item.is-filtering {
  animation: gallery-pop 0.4s var(--ease);
}
@keyframes gallery-pop {
  from { opacity: 0; transform: scale(0.94); }
  to { opacity: 1; transform: scale(1); }
}

/* ----- Infografía comparativa ----- */
.section--infographic { background: var(--color-cream); }
.section__head--center { max-width: 640px; margin-inline: auto; text-align: center; }

.compare-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}
.compare-card {
  background: var(--color-white);
  padding: var(--space-4);
  border-radius: var(--radius);
  border: 1px solid rgba(30,91,130,0.1);
  text-align: center;
}
.compare-card__icon {
  width: 88px;
  height: 88px;
  margin: 0 auto var(--space-3);
}
.compare-card__icon img {
  width: 100%;
  height: 100%;
  opacity: 0;
  transform: scale(0.6) rotate(-8deg);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.compare-card__icon.is-visible img { opacity: 1; transform: scale(1) rotate(0deg); }

.compare-card h3 { margin-bottom: var(--space-3); }
.compare-list { text-align: left; margin-bottom: var(--space-3); }
.compare-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(30,91,130,0.08);
  font-size: 0.92rem;
  opacity: 0;
  transform: translateX(-10px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}
.compare-list li:last-child { border-bottom: none; }
.compare-card.is-visible .compare-list li { opacity: 1; transform: translateX(0); }
.compare-card.is-visible .compare-list li:nth-child(1) { transition-delay: 0.05s; }
.compare-card.is-visible .compare-list li:nth-child(2) { transition-delay: 0.15s; }
.compare-card.is-visible .compare-list li:nth-child(3) { transition-delay: 0.25s; }
.compare-card.is-visible .compare-list li:nth-child(4) { transition-delay: 0.35s; }

.compare-list__mark {
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 0.15rem;
  border-radius: 50%;
  background: var(--color-accent);
  position: relative;
}
.compare-list__mark::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 3px;
  width: 5px;
  height: 9px;
  border: solid var(--color-dark);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

/* ----- Galería ----- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-auto-flow: dense;
  gap: var(--space-2);
}
.gallery-item {
  position: relative;
  padding: 0;
  border: none;
  background: var(--color-dark);
  overflow: hidden;
  border-radius: var(--radius);
  aspect-ratio: 3 / 4;
}
.gallery-item--wide { grid-column: span 2; aspect-ratio: 16 / 10; }
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease), opacity 0.3s;
}
.gallery-item:hover img { transform: scale(1.06); }
.gallery-item::after {
  content: attr(data-caption);
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: var(--space-2) var(--space-2) var(--space-1);
  background: linear-gradient(0deg, rgba(15,25,31,0.85), rgba(15,25,31,0));
  color: #fff;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-align: left;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
}
.gallery-item:hover::after, .gallery-item:focus-visible::after { opacity: 1; transform: translateY(0); }

.gallery-cta {
  margin-top: var(--space-5);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  text-align: center;
}
.gallery-cta p { font-weight: 700; color: var(--color-dark); margin: 0; }

/* ----- Clientes: carrusel infinito ----- */
.section--clients { padding-block: var(--space-5); background: var(--color-cream); overflow: hidden; }

.marquee {
  position: relative;
  margin-top: var(--space-4);
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 8%, #000 92%, transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0, #000 8%, #000 92%, transparent 100%);
}
.marquee__track {
  display: flex;
  width: max-content;
  animation: marquee-scroll 34s linear infinite;
}
.marquee:hover .marquee__track { animation-play-state: paused; }

.client-logos {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  padding-right: var(--space-5);
}
.client-logos img {
  max-height: 48px;
  width: auto;
  object-fit: contain;
  filter: grayscale(1);
  opacity: 0.65;
  transition: opacity 0.25s var(--ease), filter 0.25s var(--ease);
}
.client-logos img:hover { filter: grayscale(0); opacity: 1; }

@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
  .marquee__track { animation: none; }
}

/* ----- CTA final ----- */
.section--cta-final {
  background: var(--color-primary);
  background-image: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  text-align: center;
}
.cta-final__inner { display: flex; flex-direction: column; align-items: center; gap: var(--space-2); }
.cta-final__inner h2 { color: #fff; max-width: 18ch; }
.cta-final__inner p { color: rgba(255,255,255,0.85); margin-bottom: var(--space-2); }

/* ----- Footer ----- */
.site-footer { background: var(--color-dark); color: rgba(255,255,255,0.7); padding-block: var(--space-4); }
.site-footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  text-align: center;
}
.site-footer__logo { height: 30px; width: auto; }
.site-footer__presence { font-size: 0.85rem; max-width: 480px; margin: 0; color: rgba(255,255,255,0.85); letter-spacing: 0.02em; line-height: 1.4; }
.site-footer__presence a { text-decoration: underline; text-underline-offset: 2px; text-decoration-color: rgba(255,255,255,0.4); }
.site-footer__presence a:hover { color: var(--color-accent); text-decoration-color: var(--color-accent); }
.site-footer nav ul { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-3); }
.site-footer nav a { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; }
.site-footer nav a:hover { color: var(--color-accent); }
.site-footer__copy { font-size: 0.75rem; margin: 0; letter-spacing: 0.05em; }

/* ----- WhatsApp flotante ----- */
.whatsapp-fab {
  position: fixed;
  right: var(--space-3);
  bottom: var(--space-3);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25D366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
  z-index: 90;
  transition: transform 0.25s var(--ease);
}
.whatsapp-fab:hover { transform: scale(1.08); }
.whatsapp-fab svg { width: 28px; height: 28px; fill: #fff; }

/* ----- Reveal on scroll ----- */
[data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }

/* ----- Lightbox ----- */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(15,25,31,0.94);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s var(--ease);
}
.lightbox.is-open { opacity: 1; pointer-events: auto; }
.lightbox img { max-width: min(90vw, 1100px); max-height: 82vh; object-fit: contain; border-radius: var(--radius); }
.lightbox--swatch img { max-width: min(70vw, 640px); max-height: 640px; border-radius: var(--radius); }
.lightbox figcaption { color: #fff; text-align: center; margin-top: var(--space-2); font-size: 0.85rem; letter-spacing: 0.05em; }
.lightbox__close {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  width: 44px;
  height: 44px;
  border: none;
  background: rgba(255,255,255,0.1);
  color: #fff;
  font-size: 1.5rem;
  border-radius: 50%;
}
.lightbox__close:hover { background: rgba(255,255,255,0.2); }

.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border: none;
  background: rgba(255,255,255,0.1);
  color: #fff;
  font-size: 1.4rem;
  border-radius: 50%;
  transition: background-color 0.2s var(--ease);
}
.lightbox__nav:hover { background: rgba(255,255,255,0.22); }
.lightbox__prev { left: var(--space-3); }
.lightbox__next { right: var(--space-3); }
.lightbox__count {
  color: rgba(255,255,255,0.6);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-align: center;
  margin-top: 0.35rem;
}

@media (max-width: 640px) {
  .lightbox__nav { width: 44px; height: 44px; font-size: 1.1rem; }
  .lightbox__prev { left: 0.5rem; }
  .lightbox__next { right: 0.5rem; }
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (min-width: 640px) {
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
  .gallery-item--wide { grid-column: span 2; }
}

@media (min-width: 860px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-5); }
  .compare-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .main-nav {
    position: fixed;
    inset: 72px 0 0 0;
    background: var(--color-white);
    padding: var(--space-4) var(--space-3);
    transform: translateX(100%);
    transition: transform 0.3s var(--ease);
  }
  .main-nav.is-open { transform: translateX(0); }
  .main-nav ul { flex-direction: column; gap: var(--space-3); }
  .main-nav a { font-size: 1.1rem; }
  .nav-toggle { display: flex; }
  .site-header__actions .btn--sm { display: none; }

  .nav-item-wrap { width: 100%; justify-content: space-between; }
  .dropdown-toggle { width: 32px; height: 32px; }
  .nav-dropdown {
    position: static;
    display: none;
    flex-direction: column;
    gap: var(--space-3);
    box-shadow: none;
    padding: var(--space-3) 0 0 var(--space-2);
    margin: 0;
    min-width: 0;
    opacity: 1;
    pointer-events: auto;
    transform: none;
  }
  .has-dropdown.is-dropdown-open .nav-dropdown { display: flex; }
  .nav-dropdown__heading { font-size: 0.75rem !important; }
  .nav-dropdown__col ul a { font-size: 1rem !important; }
}

@media (min-width: 901px) {
  .nav-toggle { display: none; }
}

@media (max-width: 480px) {
  .btn { white-space: normal; text-align: center; }
}

.main-nav a[aria-current="page"] { color: var(--color-primary); }
.main-nav a[aria-current="page"]::after { transform: scaleX(1); }

/* ----- Hero de categoría (páginas de línea de producto) ----- */
.hero--category { min-height: 58svh; }
.hero--category .hero__content { max-width: 720px; padding-block: var(--space-5); }
.hero--category .hero__img { object-position: center 62%; }

/* ----- Beneficios rápidos ----- */
.benefits-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  margin-top: var(--space-4);
}
.benefit {
  padding: var(--space-3);
  border: 1px solid rgba(30,91,130,0.1);
  border-radius: var(--radius);
  background: var(--color-white);
}
.benefit h3 { margin-bottom: 0.5rem; }
.benefit p { font-size: 0.9rem; margin: 0; }

@media (min-width: 760px) {
  .benefits-row { grid-template-columns: repeat(3, 1fr); }
}

/* ----- Referencias / colecciones ----- */
.reference-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}
.reference {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}
.reference__media {
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border-radius: var(--radius);
}
.reference__media a { display: block; height: 100%; }
.reference__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}
.reference:hover .reference__media img { transform: scale(1.05); }
.reference__body { display: flex; flex-direction: column; justify-content: center; }
.reference__body h3 a:hover { color: var(--color-mid-blue); }
.reference__body .overline { margin-bottom: 0.5rem; }
.reference__body p { max-width: 52ch; }

@media (min-width: 860px) {
  .reference { grid-template-columns: 1fr 1fr; gap: var(--space-5); align-items: center; }
  .reference--reverse .reference__media { order: 2; }
  .reference--reverse .reference__body { order: 1; }
}

/* ----- Referencias relacionadas (carrusel horizontal) ----- */
.related-strip {
  display: flex;
  gap: var(--space-3);
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  padding-bottom: var(--space-2);
  scrollbar-width: thin;
  scrollbar-color: var(--color-gray-blue) transparent;
}
.related-strip::-webkit-scrollbar { height: 6px; }
.related-strip::-webkit-scrollbar-thumb { background: var(--color-gray-blue); border-radius: 999px; }
.related-card {
  flex: 0 0 240px;
  scroll-snap-align: start;
  display: block;
}
.related-card__media {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: var(--radius);
}
.related-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}
.related-card:hover .related-card__media img { transform: scale(1.06); }
.related-card__body { padding-top: var(--space-2); }
.related-card__body .overline { margin-bottom: 0.25rem; }
.related-card__body h3 { margin: 0 0 0.25rem; }
.related-card:hover .related-card__body h3 { color: var(--color-mid-blue); }
.related-card__body p { margin: 0; font-size: 0.85rem; color: var(--color-gray-blue); letter-spacing: 0.05em; }

@media (min-width: 640px) {
  .related-card { flex-basis: 280px; }
}

.spec-list {
  margin: var(--space-3) 0;
  padding: 0;
  border-top: 1px solid rgba(30,91,130,0.12);
}
.spec-list__item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
  padding: 0.65rem 0;
  border-bottom: 1px solid rgba(30,91,130,0.12);
}
.spec-list__label {
  margin: 0;
  flex: none;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-mid-blue);
  font-weight: 700;
}
.spec-list__value {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-dark);
  letter-spacing: 0.02em;
  text-align: right;
}

.swatch-group { margin: var(--space-3) 0 var(--space-4); }
.swatch-group__label {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-mid-blue);
  font-weight: 700;
  margin-bottom: 0.85rem;
}
.swatch-strip { display: flex; flex-wrap: wrap; gap: 1.4rem; }
.swatch {
  width: 132px;
  text-align: center;
  background: none;
  border: none;
  padding: 0;
  font-family: inherit;
  cursor: zoom-in;
}
.swatch__chip {
  position: relative;
  display: block;
  width: 124px;
  height: 124px;
  margin-inline: auto;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid transparent;
  box-shadow: 0 3px 10px rgba(28,42,51,0.2);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}
.swatch__chip img { width: 100%; height: 100%; object-fit: cover; }
.swatch__chip::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: rgba(28,42,51,0.28) url("data:image/svg+xml;utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='2'%3E%3Ccircle cx='10.5' cy='10.5' r='6.5'/%3E%3Cline x1='15.5' y1='15.5' x2='21' y2='21'/%3E%3C/svg%3E") center / 28px no-repeat;
  opacity: 0;
  transition: opacity 0.25s var(--ease);
}
.swatch:hover .swatch__chip,
.swatch:focus-visible .swatch__chip { transform: scale(1.08); border-color: var(--color-accent); }
.swatch:hover .swatch__chip::after,
.swatch:focus-visible .swatch__chip::after { opacity: 1; }
.swatch__code {
  display: block;
  margin-top: 0.6rem;
  font-size: 0.75rem;
  letter-spacing: 0.03em;
  color: var(--color-slate);
  opacity: 0.8;
  text-transform: uppercase;
}

.spec-download { margin-top: var(--space-4); }

/* ----- Proceso paso a paso (cotización + instalación) ----- */
.process-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}
.process-step { text-align: center; }
.process-step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-cream);
  border: 1.5px solid rgba(30,91,130,0.35);
  color: var(--color-primary);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  margin-bottom: var(--space-2);
  position: relative;
  z-index: 1;
}
.process-step h3 { margin-bottom: 0.4rem; font-size: 0.95rem; }
.process-step p { font-size: 0.82rem; margin: 0 auto; max-width: 26ch; opacity: 0.9; }

@media (min-width: 640px) {
  .process-grid { grid-template-columns: repeat(3, 1fr); gap: var(--space-4) var(--space-3); }
}
@media (min-width: 1100px) {
  .process-grid { grid-template-columns: repeat(6, 1fr); }
  .process-grid::before {
    content: "";
    position: absolute;
    top: 20px;
    left: 0;
    right: 0;
    height: 1px;
    background: rgba(30,91,130,0.12);
    z-index: 0;
  }
}

/* ----- Formulario de contacto ----- */
.contact-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  max-width: 680px;
}
.form-row { display: flex; flex-direction: column; gap: 0.5rem; }
.form-row__optional { text-transform: none; font-weight: 400; letter-spacing: 0; color: var(--color-gray-blue); }
.form-row label {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-slate);
}
.form-row input,
.form-row textarea {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-dark);
  background: var(--color-white);
  border: 1px solid rgba(30,91,130,0.2);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  transition: border-color 0.2s var(--ease);
}
.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}
.form-row textarea { resize: vertical; min-height: 130px; font-family: var(--font-body); }
.botcheck { position: absolute; left: -9999px; }
.form-actions { display: flex; flex-direction: column; align-items: flex-start; gap: var(--space-2); margin-top: var(--space-1); }
.form-status { font-size: 0.85rem; margin: 0; }
.form-status[data-state="success"] { color: #2e7d4f; }
.form-status[data-state="error"] { color: #c0392b; }

@media (min-width: 640px) {
  .contact-form { grid-template-columns: 1fr 1fr; column-gap: var(--space-4); }
  .form-row--full { grid-column: 1 / -1; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  [data-reveal] { opacity: 1; transform: none; transition: none; }
  .btn:hover, .gallery-item:hover img, .product-card:hover .product-card__media img { transform: none; }
  .hero__img { animation: none; }
  .hero__content .overline, .hero h1, .hero__lead, .hero__actions { animation: none; opacity: 1; transform: none; }
  .compare-card__icon img, .compare-list li { transition: none; opacity: 1; transform: none; }
  .product-card__media { transform: none !important; }
}