/* ============================================================
   GRUPO ACERERO CHAVEZ — styles.css
   Hoja de estilos global. Sitio estatico HTML/CSS/JS puro.
   Carga: <link rel="stylesheet" href="/css/styles.css">
   ============================================================ */

/* =========================
   1. VARIABLES (paleta GAC)
   ========================= */
:root {
  /* Paleta corporativa (todas validadas en 3501_Brief_Inicial_Cliente_GAC.md) */
  --color-primary:    #0D2845;
  --color-action:     #E30613;
  --color-action-dk:  #B30510;
  --color-neutral:    #6D7782;
  --color-bg-light:   #F2F4F7;
  --color-highlight:  #F59E0B;
  --color-white:      #FFFFFF;
  --color-text:       #1A1A2E;
  --color-text-soft:  #4A4A5E;
  --color-border:     #D9DDE3;

  /* WhatsApp */
  --color-wa: #25D366;
  --color-wa-dk: #128C7E;

  /* Tipografia */
  --font-base: 'Inter', system-ui, -apple-system, "Segoe UI", Arial, sans-serif;

  /* Tamanos */
  --max-width: 1280px;
  --header-height: 76px;

  /* Spacing */
  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;

  /* Sombras */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.12);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.18);

  /* Radii */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-pill: 999px;

  /* Transiciones */
  --tr-fast: 0.15s ease;
  --tr-base: 0.25s ease;
}

/* ===========
   2. RESET
   =========== */
*,
*::before,
*::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body,
h1, h2, h3, h4, h5, h6,
p, ul, ol, figure, blockquote { margin: 0; padding: 0; }

ul, ol { list-style: none; }

img, picture, svg, video {
  display: block;
  max-width: 100%;
  height: auto;
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

button { background: none; border: 0; cursor: pointer; }

a { color: inherit; text-decoration: none; }

/* =================
   3. BASE / BODY
   ================= */
body {
  font-family: var(--font-base);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-white);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-primary);
}

h1 { font-size: clamp(1.75rem, 4vw + 1rem, 3rem); }
h2 { font-size: clamp(1.5rem, 2.5vw + 0.8rem, 2.25rem); }
h3 { font-size: clamp(1.2rem, 1.5vw + 0.7rem, 1.5rem); }
h4 { font-size: 1.125rem; }

p { color: var(--color-text-soft); }

/* ==========================
   4. CONTAINER / UTILIDADES
   ========================== */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-sm);
}

@media (min-width: 768px) {
  .container { padding-inline: var(--space-md); }
}

.section {
  padding-block: var(--space-lg);
}

@media (min-width: 768px) {
  .section { padding-block: var(--space-xl); }
}

.section--dark {
  background: var(--color-primary);
  color: var(--color-white);
}
.section--dark h1,
.section--dark h2,
.section--dark h3 { color: var(--color-white); }
.section--dark p { color: rgba(255,255,255,0.85); }

.section--light { background: var(--color-bg-light); }

/* ===============
   5. BOTONES
   =============== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  border-radius: var(--radius-sm);
  transition: background var(--tr-base), transform var(--tr-fast), box-shadow var(--tr-base);
  text-align: center;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--color-action);
  color: var(--color-white);
}
.btn--primary:hover { background: var(--color-action-dk); }

.btn--outline {
  background: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-white);
}
.btn--outline:hover { background: var(--color-white); color: var(--color-primary); }

.btn--ghost {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}
.btn--ghost:hover { background: var(--color-primary); color: var(--color-white); }

.btn--lg { padding: 1rem 2rem; font-size: 1rem; }

/* ===========
   6. HEADER (Opción C: claro)
   =========== */
/* ===== TOPBAR (barra utilitaria: conmutador + correo, arriba a la derecha) ===== */
.topbar {
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 0.82rem;
}
.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: var(--space-md);
  min-height: 36px;
  padding-block: 0.35rem;
}
.topbar__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--color-white);
  font-weight: 600;
  transition: color var(--tr-fast);
}
.topbar__link:hover { color: var(--color-highlight); }
.topbar__link i { font-size: 0.9em; color: var(--color-highlight); }
@media (max-width: 480px) {
  .topbar { font-size: 0.72rem; }
  .topbar__inner { justify-content: center; gap: var(--space-sm); }
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  height: var(--header-height);
}

.site-header__logo {
  display: flex;
  align-items: center;
  height: 100%;
}
.site-header__logo img {
  height: 62px;
  width: auto;
}

/* Navegacion desktop */
.site-nav {
  display: none;
}
@media (min-width: 960px) {
  .site-nav {
    display: flex;
    align-items: center;
    gap: var(--space-md);
  }
}
.site-nav__link {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.5rem 0.25rem;
  position: relative;
  transition: color var(--tr-fast);
}
.site-nav__link:hover { color: var(--color-action); }
.site-nav__link.is-active { color: var(--color-action); }
.site-nav__link.is-active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -4px;
  height: 2px;
  background: var(--color-action);
}

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

/* Boton hamburguesa (movil) */
.hamburger {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  color: var(--color-primary);
}
.hamburger span {
  display: block;
  height: 2px;
  background: currentColor;
  transition: transform var(--tr-base), opacity var(--tr-base);
}
.hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (min-width: 960px) {
  .hamburger { display: none; }
}

/* Drawer movil */
.mobile-drawer {
  position: fixed;
  inset: var(--header-height) 0 0 0;
  background: var(--color-white);
  padding: var(--space-md);
  transform: translateX(100%);
  transition: transform var(--tr-base);
  z-index: 999;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}
.mobile-drawer.is-open { transform: translateX(0); }
.mobile-drawer__nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.mobile-drawer__link {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 1.125rem;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
}
.mobile-drawer__link.is-active { color: var(--color-action); }

@media (min-width: 960px) {
  .mobile-drawer { display: none; }
}

/* ===========
   7. FOOTER
   =========== */
.site-footer {
  background: var(--color-primary);
  color: var(--color-white);
  padding-block: var(--space-xl) var(--space-md);
  margin-top: var(--space-xl);
}

.site-footer__grid {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: 1fr;
}
@media (min-width: 768px) {
  .site-footer__grid {
    grid-template-columns: 1.2fr 1fr 1.3fr;
  }
}

.site-footer__col h4 {
  color: var(--color-white);
  font-size: 1rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.site-footer__logo {
  display: inline-block;
  margin-bottom: var(--space-sm);
}
.site-footer__logo img { height: 62px; width: auto; }

.site-footer__lead { color: rgba(255,255,255,0.75); font-size: 0.95rem; max-width: 32ch; }

.site-footer__nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}
.site-footer__nav a {
  color: rgba(255,255,255,0.8);
  font-size: 0.95rem;
  transition: color var(--tr-fast);
}
.site-footer__nav a:hover { color: var(--color-action); }

.site-footer__contact {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  font-size: 0.95rem;
  color: rgba(255,255,255,0.85);
}
.site-footer__contact a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  transition: color var(--tr-fast);
}
.site-footer__contact a:hover { color: var(--color-action); }
.site-footer__contact i { width: 18px; color: var(--color-action); }

.site-footer__social {
  display: flex;
  gap: var(--space-xs);
  margin-top: var(--space-sm);
}
.site-footer__social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  color: var(--color-white);
  transition: background var(--tr-fast), color var(--tr-fast);
}
.site-footer__social a:hover {
  background: var(--color-action);
  color: var(--color-white);
}

.site-footer__bottom {
  margin-top: var(--space-lg);
  padding-top: var(--space-sm);
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  text-align: center;
}
@media (min-width: 768px) {
  .site-footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* =====================
   8. WHATSAPP FLOTANTE
   ===================== */
.whatsapp-float {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--color-wa);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  box-shadow: var(--shadow-lg);
  z-index: 9999;
  transition: transform var(--tr-fast), background var(--tr-base);
  text-decoration: none;
}
.whatsapp-float:hover {
  transform: scale(1.08);
  background: var(--color-wa-dk);
}
.whatsapp-float:focus-visible {
  outline: 3px solid var(--color-white);
  outline-offset: 3px;
}

/* ==================
   9. ACCESIBILIDAD
   ================== */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-action);
  color: var(--color-white);
  padding: var(--space-xs) var(--space-sm);
  z-index: 10000;
}
.skip-link:focus { left: 0; }

:focus-visible {
  outline: 3px solid var(--color-action);
  outline-offset: 2px;
}

/* =================================
   10. SECTION HEADING (eyebrow + titulo + lead)
   ================================= */
.section-heading {
  max-width: 56rem;
  margin: 0 auto var(--space-lg);
  text-align: center;
}
.section-heading__eyebrow {
  display: inline-block;
  color: var(--color-action);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--space-xs);
}
.section-heading__title {
  margin-bottom: var(--space-sm);
}
.section-heading__lead {
  font-size: 1.05rem;
  color: var(--color-text-soft);
  max-width: 48rem;
  margin-inline: auto;
}
.section--dark .section-heading__lead { color: rgba(255,255,255,0.85); }
.section--dark .section-heading__eyebrow { color: var(--color-highlight); }

/* =========
   11. HERO
   ========= */
.hero {
  position: relative;
  isolation: isolate;
  color: var(--color-white);
  padding-block: var(--space-xl) var(--space-2xl);
  min-height: clamp(560px, 85vh, 760px);
  display: flex;
  align-items: flex-end; /* texto cae sobre la zona oscura del degradado */
  overflow: hidden;
}
.hero__media {
  position: absolute;
  inset: 0;
  z-index: -1;
}
.hero__bg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  /* Degradado vertical cinematográfico: foto limpia arriba, azul corporativo
     denso abajo para legibilidad del texto. Más un sutil oscurecido lateral
     para concentrar la atención. */
  background:
    linear-gradient(to bottom,
      rgba(13, 40, 69, 0)    0%,
      rgba(13, 40, 69, 0.05) 25%,
      rgba(13, 40, 69, 0.35) 55%,
      rgba(13, 40, 69, 0.68) 85%,
      rgba(13, 40, 69, 0.80) 100%),
    linear-gradient(to right,
      rgba(13, 40, 69, 0.28) 0%,
      rgba(13, 40, 69, 0)    35%,
      rgba(13, 40, 69, 0)    65%,
      rgba(13, 40, 69, 0.20) 100%);
}
.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 56rem;
}
.hero__claim {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background: var(--color-highlight);
  color: var(--color-primary);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-md);
  box-shadow: var(--shadow-sm);
}
.hero__claim i { font-size: 0.95rem; }

.hero__title {
  color: var(--color-white);
  font-size: clamp(2rem, 3.5vw + 1rem, 3.25rem);
  line-height: 1.15;
  max-width: 28ch;
  margin-bottom: var(--space-sm);
  text-shadow: 0 2px 12px rgba(0,0,0,0.35); /* legibilidad sobre overlay suave */
}
.hero__subtitle {
  color: rgba(255,255,255,0.95);
  font-size: clamp(1rem, 0.6vw + 0.9rem, 1.2rem);
  max-width: 46ch;
  margin-bottom: var(--space-sm);
  text-shadow: 0 1px 8px rgba(0,0,0,0.30);
}
.hero__tagline {
  color: var(--color-action); /* rojo de marca #E30613 */
  font-style: italic;
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: var(--space-md);
  text-shadow: 0 1px 8px rgba(0,0,0,0.55);
}
.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

@media (min-width: 768px) {
  .hero { padding-block: var(--space-2xl); }
}

/* =================
   12. FEATURES GRID
   ================= */
.features-grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
}
@media (min-width: 560px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
  .features-grid { grid-template-columns: repeat(3, 1fr); }
  .features-grid > .feature-card:nth-child(4),
  .features-grid > .feature-card:nth-child(5) {
    /* En 3 columnas las 2 últimas tarjetas se centran */
  }
}
@media (min-width: 1200px) {
  .features-grid { grid-template-columns: repeat(5, 1fr); }
}

.feature-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  box-shadow: var(--shadow-sm);
  transition: transform var(--tr-base), box-shadow var(--tr-base), border-color var(--tr-base);
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.feature-card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(227, 6, 19, 0.08);
  color: var(--color-action);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: var(--space-xs);
}
.feature-card__title {
  font-size: 1.1rem;
  color: var(--color-primary);
  margin-bottom: var(--space-2xs);
}
.feature-card__text {
  color: var(--color-text-soft);
  font-size: 0.95rem;
  line-height: 1.55;
}

/* =================
   13. PRODUCTS GRID
   ================= */
.products-grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
}
@media (min-width: 560px) {
  .products-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
  .products-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1200px) {
  .products-grid { grid-template-columns: repeat(4, 1fr); }
}

.product-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--tr-base), box-shadow var(--tr-base), border-color var(--tr-base);
}
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.product-card__link {
  display: flex;
  flex-direction: column;
  height: 100%;
}
.product-card__media {
  display: block;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-bg-light);
}
.product-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.product-card:hover .product-card__media img {
  transform: scale(1.05);
}
.product-card__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
  padding: var(--space-md);
  flex: 1;
}
.product-card__title {
  font-weight: 800;
  color: var(--color-primary);
  font-size: 1.15rem;
  line-height: 1.25;
}
.product-card__desc {
  color: var(--color-text-soft);
  font-size: 0.92rem;
  line-height: 1.5;
  flex: 1;
}
.product-card__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  color: var(--color-action);
  font-weight: 600;
  font-size: 0.9rem;
  margin-top: var(--space-xs);
}
.product-card__cta i {
  transition: transform var(--tr-base);
}
.product-card:hover .product-card__cta i {
  transform: translateX(4px);
}

.products-grid__footer {
  margin-top: var(--space-lg);
  text-align: center;
}

/* =================
   14. STATS BAND
   ================= */
.stats-band .section-heading { margin-bottom: var(--space-md); }

.stats-grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
  text-align: center;
}
@media (min-width: 560px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
  .stats-grid { grid-template-columns: repeat(4, 1fr); }
}

.stat-card {
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
}
.stat-card__value {
  font-weight: 800;
  font-size: clamp(2.5rem, 4vw + 1rem, 3.75rem);
  line-height: 1;
  color: var(--color-highlight);
  display: inline-flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.1em;
}
.stat-card__unit {
  font-size: 0.55em;
  font-weight: 700;
  color: rgba(255,255,255,0.85);
}
.stat-card__label {
  color: rgba(255,255,255,0.85);
  font-size: 0.95rem;
  line-height: 1.4;
}

/* =================
   15. CTA BANNER
   ================= */
.cta-banner {
  background: var(--color-primary);
  color: var(--color-white);
  padding-block: var(--space-lg);
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 50%, rgba(227,6,19,0.15) 0%, transparent 55%);
  pointer-events: none;
}
@media (min-width: 768px) {
  .cta-banner { padding-block: var(--space-xl); }
}

.cta-banner__inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-md);
  position: relative;
  z-index: 1;
}
@media (min-width: 960px) {
  .cta-banner__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-lg);
  }
}

.cta-banner__copy { max-width: 36rem; }
.cta-banner__eyebrow {
  display: inline-block;
  color: var(--color-highlight);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--space-xs);
}
.cta-banner__title {
  color: var(--color-white);
  font-size: clamp(1.5rem, 2vw + 0.8rem, 2.25rem);
  margin-bottom: var(--space-xs);
}
.cta-banner__lead {
  color: rgba(255,255,255,0.85);
  font-size: 1.02rem;
  line-height: 1.55;
}
.cta-banner__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}
.cta-banner .btn--ghost {
  color: var(--color-white);
  border-color: var(--color-white);
}
.cta-banner .btn--ghost:hover {
  background: var(--color-white);
  color: var(--color-primary);
}

/* =================
   16. QUICK CONTACT
   ================= */
.quick-contact {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
}
@media (min-width: 560px) {
  .quick-contact { grid-template-columns: repeat(2, 1fr); }
  .quick-contact__card--combo { grid-column: span 2; }
}
@media (min-width: 960px) {
  .quick-contact { grid-template-columns: 1.4fr 1fr 1fr; }
  .quick-contact__card--combo { grid-column: span 1; }
}

.quick-contact__card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--tr-base), box-shadow var(--tr-base), border-color var(--tr-base);
}
.quick-contact__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.quick-contact__link {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
  padding: var(--space-md);
  height: 100%;
}
.quick-contact__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(227, 6, 19, 0.08);
  color: var(--color-action);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: var(--space-xs);
}
.quick-contact__icon--wa {
  background: rgba(37, 211, 102, 0.12);
  color: var(--color-wa-dk);
}
.quick-contact__title {
  font-weight: 700;
  color: var(--color-primary);
  font-size: 1rem;
}
.quick-contact__value {
  color: var(--color-text);
  font-size: 0.98rem;
  word-break: break-word;
}
.quick-contact__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  color: var(--color-action);
  font-weight: 600;
  font-size: 0.9rem;
  margin-top: auto;
  padding-top: var(--space-xs);
}
.quick-contact__cta i {
  transition: transform var(--tr-base);
}
.quick-contact__card:hover .quick-contact__cta i {
  transform: translateX(4px);
}

/* Tarjeta combo: WhatsApp + llamada (mismo número) con dos acciones */
.quick-contact__card--combo {
  display: flex;
  flex-direction: column;
}
.quick-contact__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
  padding: var(--space-md) var(--space-md) var(--space-xs);
  flex: 1;
}
.quick-contact__actions {
  display: flex;
  gap: var(--space-xs);
  padding: 0 var(--space-md) var(--space-md);
  flex-wrap: wrap;
}
.quick-contact__actions .btn {
  flex: 1;
  font-size: 0.9rem;
  padding: 0.6rem 1rem;
  min-width: 7rem;
}

/* Botón WhatsApp (verde) */
.btn--wa {
  background: var(--color-wa);
  color: var(--color-white);
}
.btn--wa:hover { background: var(--color-wa-dk); }

/* =================
   17. QUICK CONTACT - HORARIO
   ================= */
.quick-contact__hours {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--color-neutral);
  font-size: 0.82rem;
  margin-top: var(--space-2xs);
}
.quick-contact__hours i { font-size: 0.78rem; }

/* =================
   18. PAGE HERO (encabezado interno compacto)
   ================= */
.page-hero {
  background: var(--color-primary);
  color: var(--color-white);
  padding-block: var(--space-lg) var(--space-md);
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 85% 30%, rgba(227,6,19,0.18) 0%, transparent 55%);
  pointer-events: none;
}
@media (min-width: 768px) {
  .page-hero { padding-block: var(--space-xl) var(--space-lg); }
}
.page-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 60rem;
}
.page-hero__eyebrow {
  display: inline-block;
  color: var(--color-highlight);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--space-xs);
}
.page-hero__title {
  color: var(--color-white);
  font-size: clamp(1.85rem, 3vw + 1rem, 2.75rem);
  margin-bottom: var(--space-sm);
  line-height: 1.15;
}
.page-hero__lead {
  color: rgba(255,255,255,0.85);
  font-size: clamp(1rem, 0.4vw + 0.95rem, 1.15rem);
  max-width: 50rem;
  line-height: 1.55;
}

/* =================
   19. BREADCRUMB
   ================= */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
  margin-bottom: var(--space-sm);
}
.breadcrumb a {
  color: rgba(255,255,255,0.9);
  text-decoration: none;
  transition: color var(--tr-fast);
}
.breadcrumb a:hover { color: var(--color-highlight); }
.breadcrumb__sep { color: rgba(255,255,255,0.5); }
.breadcrumb__current {
  color: var(--color-white);
  font-weight: 600;
}

/* =================
   20. PRODUCT SUBSECTION (variante dentro de una categoría)
   ================= */
.product-subsection {
  padding-block: var(--space-md) 0;
}
.product-subsection + .product-subsection {
  padding-top: var(--space-lg);
  margin-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}
.product-subsection__header {
  margin-bottom: var(--space-md);
}
.product-subsection__eyebrow {
  display: inline-block;
  color: var(--color-action);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-2xs);
}
.product-subsection__title {
  color: var(--color-primary);
  font-size: clamp(1.35rem, 1.5vw + 0.8rem, 1.75rem);
  margin-bottom: var(--space-xs);
}
.product-subsection__lead {
  color: var(--color-text-soft);
  font-size: 1rem;
  line-height: 1.6;
  max-width: 56rem;
}
.product-subsection__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs) var(--space-md);
  margin-top: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg-light);
  border-left: 3px solid var(--color-action);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: 0.92rem;
}
.product-subsection__meta dt {
  font-weight: 700;
  color: var(--color-primary);
  margin-right: 0.35rem;
  display: inline;
}
.product-subsection__meta dd {
  display: inline;
  margin: 0 var(--space-sm) 0 0;
  color: var(--color-text-soft);
}
.product-subsection__meta div {
  display: inline-block;
  margin-right: var(--space-md);
}

/* =================
   21. SPEC TABLE (tabla de especificaciones técnicas)
   ================= */
.spec-table-wrap {
  margin-block: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  background: var(--color-white);
}
.spec-table-wrap--scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  min-width: 32rem;
}
.spec-table caption {
  caption-side: top;
  text-align: left;
  font-weight: 700;
  color: var(--color-primary);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg-light);
  border-bottom: 1px solid var(--color-border);
}
.spec-table thead th {
  background: var(--color-primary);
  color: var(--color-white);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  text-align: left;
  padding: 0.65rem 0.9rem;
  border-bottom: 1px solid var(--color-border);
}
.spec-table tbody td,
.spec-table tbody th {
  padding: 0.6rem 0.9rem;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  vertical-align: top;
}
.spec-table tbody th {
  font-weight: 700;
  color: var(--color-primary);
  text-align: left;
  background: rgba(13, 40, 69, 0.03);
}
.spec-table tbody tr:last-child td,
.spec-table tbody tr:last-child th { border-bottom: 0; }
.spec-table tbody tr:nth-child(even) td { background: rgba(13, 40, 69, 0.025); }
.spec-table tbody tr:hover td { background: rgba(227, 6, 19, 0.04); }

/* Nota técnica bajo tabla */
.spec-note {
  margin-top: var(--space-xs);
  font-size: 0.85rem;
  color: var(--color-neutral);
  line-height: 1.5;
}
.spec-note i { color: var(--color-action); margin-right: 0.35rem; }

/* =================
   22. PRODUCT GALLERY
   ================= */
.product-gallery {
  display: grid;
  gap: var(--space-sm);
  grid-template-columns: 1fr;
  margin-block: var(--space-md);
}
@media (min-width: 560px) {
  .product-gallery { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
  .product-gallery { grid-template-columns: repeat(3, 1fr); }
}
.product-gallery__item {
  display: block;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
}
.product-gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.product-gallery__item:hover img { transform: scale(1.04); }

/* =================
   23. CHIP LIST (acabados, normas)
   ================= */
.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-sm);
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.75rem;
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  font-size: 0.82rem;
  color: var(--color-primary);
  font-weight: 600;
}
.chip i { color: var(--color-action); font-size: 0.78rem; }
.chip--highlight {
  background: rgba(245, 158, 11, 0.12);
  border-color: rgba(245, 158, 11, 0.35);
  color: #8a5a08;
}

/* =================
   24. PRODUCT CTA CARD (cierre por categoría)
   ================= */
.product-cta {
  margin-top: var(--space-lg);
  padding: var(--space-lg);
  background: var(--color-bg-light);
  border-left: 4px solid var(--color-action);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
@media (min-width: 768px) {
  .product-cta {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-lg);
  }
}
.product-cta__copy h3 {
  color: var(--color-primary);
  font-size: 1.25rem;
  margin-bottom: var(--space-2xs);
}
.product-cta__copy p {
  color: var(--color-text-soft);
  font-size: 0.95rem;
  max-width: 50rem;
}
.product-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  flex-shrink: 0;
}

/* =================
   25. VALUES GRID (Misión, Visión, Valores)
   ================= */
.values-grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
  margin-top: var(--space-md);
}
@media (min-width: 768px) {
  .values-grid { grid-template-columns: repeat(3, 1fr); }
}
.value-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-action);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}
.value-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: var(--color-white);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: var(--space-xs);
}
.value-card__title {
  font-size: 1.15rem;
  color: var(--color-primary);
  margin-bottom: var(--space-2xs);
}
.value-card__text {
  color: var(--color-text-soft);
  font-size: 0.95rem;
  line-height: 1.6;
}
.value-card ul {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.value-card ul li {
  color: var(--color-text-soft);
  font-size: 0.95rem;
  padding-left: 1.4rem;
  position: relative;
}
.value-card ul li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-action);
  font-weight: 700;
}

/* =================
   26. SECTORS GRID
   ================= */
.sectors-grid {
  display: grid;
  gap: var(--space-sm);
  grid-template-columns: 1fr;
  margin-top: var(--space-md);
}
@media (min-width: 560px) {
  .sectors-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
  .sectors-grid { grid-template-columns: repeat(3, 1fr); }
}
.sector-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: transform var(--tr-base), border-color var(--tr-base), box-shadow var(--tr-base);
}
.sector-item:hover {
  transform: translateY(-2px);
  border-color: var(--color-action);
  box-shadow: var(--shadow-sm);
}
.sector-item__icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: rgba(227, 6, 19, 0.08);
  color: var(--color-action);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.05rem;
  flex-shrink: 0;
}
.sector-item__text {
  font-weight: 600;
  color: var(--color-primary);
  font-size: 0.95rem;
  line-height: 1.35;
}

/* =================
   27. FORM (cotización y contacto)
   ================= */
.form-section {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: 1fr;
}
@media (min-width: 960px) {
  .form-section { grid-template-columns: 1.4fr 1fr; }
}

.form {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  box-shadow: var(--shadow-sm);
}
@media (min-width: 768px) {
  .form { padding: var(--space-lg); }
}

.form__grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
}
@media (min-width: 560px) {
  .form__grid { grid-template-columns: repeat(2, 1fr); }
  .form__grid > .form__field--full { grid-column: 1 / -1; }
}

.form__field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.form__label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-primary);
}
.form__label .req { color: var(--color-action); margin-left: 0.15rem; }
.form__hint { color: var(--color-neutral); font-size: 0.8rem; }
.form__input,
.form__select,
.form__textarea {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  background: var(--color-white);
  color: var(--color-text);
  transition: border-color var(--tr-fast), box-shadow var(--tr-fast);
  font-family: inherit;
}
.form__textarea { min-height: 8rem; resize: vertical; }
.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--color-action);
  box-shadow: 0 0 0 3px rgba(227, 6, 19, 0.12);
}
.form__file {
  padding: 0.5rem;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg-light);
  font-size: 0.9rem;
}

.form__check {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.88rem;
  color: var(--color-text-soft);
  line-height: 1.5;
}
.form__check input { margin-top: 0.2rem; flex-shrink: 0; accent-color: var(--color-action); }
.form__check a { color: var(--color-action); font-weight: 600; text-decoration: underline; }

.form__actions {
  margin-top: var(--space-md);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.form-aside {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.form-aside__card {
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}
.form-aside__card h3 {
  color: var(--color-white);
  font-size: 1.1rem;
  margin-bottom: var(--space-xs);
}
.form-aside__card p,
.form-aside__card a {
  color: rgba(255,255,255,0.9);
  font-size: 0.95rem;
}
.form-aside__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}
.form-aside__list a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--color-white);
  font-weight: 600;
  transition: color var(--tr-fast);
}
.form-aside__list a:hover { color: var(--color-highlight); }
.form-aside__list i { color: var(--color-highlight); width: 18px; }

/* =================
   28. MAP EMBED
   ================= */
.map-embed {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}
.map-embed iframe {
  display: block;
  width: 100%;
  height: 420px;
  border: 0;
}

/* =================
   29. PROSE (texto largo: nosotros, aviso)
   ================= */
.prose {
  max-width: 56rem;
  margin-inline: auto;
}
.prose p {
  color: var(--color-text-soft);
  font-size: 1.02rem;
  line-height: 1.7;
  margin-bottom: var(--space-sm);
}
.prose h2 {
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
  color: var(--color-primary);
  font-size: clamp(1.4rem, 1.5vw + 0.8rem, 1.85rem);
}
.prose h3 {
  margin-top: var(--space-md);
  margin-bottom: var(--space-2xs);
  color: var(--color-primary);
  font-size: 1.2rem;
}
.prose ul, .prose ol {
  margin-bottom: var(--space-sm);
  padding-left: var(--space-md);
}
.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }
.prose ul li, .prose ol li {
  color: var(--color-text-soft);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 0.35rem;
}
.prose blockquote {
  margin: var(--space-md) 0;
  padding: var(--space-sm) var(--space-md);
  border-left: 4px solid var(--color-action);
  background: var(--color-bg-light);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: var(--color-text);
}
.prose strong { color: var(--color-primary); }

/* =========
   30. FORM ERROR BANNER
   ========= */
.form-error-banner {
  background: #FEE2E2;
  border-left: 4px solid var(--color-action);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--space-sm) var(--space-md);
  margin: 0 0 var(--space-md);
  color: var(--color-text);
  /* Si el banner queda dentro de un grid (form-section, contact-grid, etc.),
     que cruce todas las columnas para no quedar atrapado en una celda lateral. */
  grid-column: 1 / -1;
}
.form-error-banner__title {
  margin: 0 0 0.4rem;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-action);
}
.form-error-banner__list {
  margin: 0;
  padding-left: 1.2rem;
  list-style: disc;
}
.form-error-banner__list li {
  margin-bottom: 0.25rem;
  line-height: 1.5;
}
.form-error-banner__list li:last-child {
  margin-bottom: 0;
}
.form__input[aria-invalid="true"],
.form__select[aria-invalid="true"],
.form__textarea[aria-invalid="true"] {
  border-color: var(--color-action);
  box-shadow: 0 0 0 3px rgba(227, 6, 19, 0.12);
}

/* =========
   99. PRINT
   ========= */
@media print {
  .site-header, .site-footer, .whatsapp-float, .hamburger, .mobile-drawer { display: none !important; }
  body { color: #000; background: #fff; }
}