/* ==========================================================================
   GRUPO ZOIN - PORTAL CORPORATIVO (zoin.cl)
   Sistema de Diseño: Consultoría de Ingeniería de Alta Fidelidad (Iteración 2)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. VARIABLES & DESIGN TOKENS
   -------------------------------------------------------------------------- */
:root {
  /* Fondo & Superficies */
  --bg:            #FFFFFF;
  --bg-alt:        #F3F5FA;  /* navy-50 */
  --surface:       #FFFFFF;
  --surface-alt:   #F8FAFC;

  /* Textos & Tipografía */
  --ink:           #101828;  /* foreground principal */
  --ink-muted:     #3D5286;  /* texto secundario = navy-500 */
  --ink-dim:       #5A729E;  /* metadatos = navy-400 */
  --ink-inverse:   #FFFFFF;

  /* Líneas & Bordes */
  --line:          #E6E9F2;  /* navy-100 */
  --line-strong:   #CBD5E1;

  /* Navy Corporativo (Titulares, Footer, Bloques oscuros puntuales) */
  --navy:          #101D33;  /* navy-900 */
  --navy-deep:     #0C1526;  /* navy-950 */
  --navy-light:    #1E293B;

  /* Acento Holding (Naranja ZOIN - Reservado solo para CTA principal y métricas) */
  --accent:        #E8622C;
  --accent-hover:  #D8501F;
  --accent-soft:   #FCE4D6;

  /* Marcas de Filiales (Solo filetes y detalles puntuales) */
  --zoin-bim:      #E8622C;
  --esterpla:      #00A39D;
  --calava:        #F6A01A;
  --calava-navy:   #11175E;

  /* Tipografía */
  --font-sans:     'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-serif:    'Fraunces', Georgia, Cambria, serif;

  /* Radios & Sombras (Máximo 6px) */
  --radius-sm:     4px;
  --radius-md:     6px;

  --shadow-subtle: 0 1px 2px rgba(16, 24, 40, 0.04), 0 2px 8px -2px rgba(16, 24, 40, 0.06);

  /* Transiciones */
  --transition:    0.18s cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout */
  --container-max: 1200px;
}

/* --------------------------------------------------------------------------
   2. RESET & BASE
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition), border-color var(--transition);
}

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

h1, h2, h3, .section-title, .hero__title {
  text-wrap: balance;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   3. LAYOUT & RITMO VERTICAL
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.section {
  padding-top: 6.25rem;
  padding-bottom: 6.25rem;
}

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

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

/* Encabezados de sección variados (no repetitivos) */
.section-header-split {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 3.5rem;
  align-items: end;
  margin-bottom: 4rem;
}

.section-header-centered {
  text-align: center;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 3.5rem;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-dim); /* Navy/Gris, no naranja */
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 3.2vw, 2.75rem);
  font-weight: 500;
  color: var(--navy);
  line-height: 1.2;
  letter-spacing: -0.02em;
  max-width: 22ch;
}

.section-desc {
  font-size: 1.125rem;
  color: var(--ink-muted);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   4. BOTONES & ENLACES UNIFICADOS
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 0.75rem 1.375rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color var(--transition), border-color var(--transition), color var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

/* CTA Primario de la página: naranja sólido */
.btn--primary {
  background-color: var(--accent);
  color: #FFFFFF;
}

.btn--primary:hover {
  background-color: var(--accent-hover);
  color: #FFFFFF;
}

/* Botones de Empresa: contorno navy sobrio unificado */
.btn--outline-navy {
  background-color: transparent;
  border-color: var(--navy);
  color: var(--navy);
}

.btn--outline-navy:hover {
  background-color: var(--navy);
  color: #FFFFFF;
}

.btn--outline-navy svg {
  transition: transform var(--transition);
}

.btn--outline-navy:hover svg {
  transform: translateX(4px);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--navy);
  transition: color var(--transition);
}

.link-arrow svg {
  transition: transform var(--transition);
}

.link-arrow:hover {
  color: var(--accent);
}

.link-arrow:hover svg {
  transform: translateX(4px);
}

/* --------------------------------------------------------------------------
   5. HEADER / NAVEGACIÓN
   -------------------------------------------------------------------------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--bg);
  border-bottom: 1px solid var(--line);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
}

.header__brand {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  text-decoration: none;
}

.header__logo {
  height: 34px;
  width: auto;
  object-fit: contain;
}

.header__brand-title {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--navy);
}

.nav__list {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 2rem;
}

.nav__link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ink-muted);
  padding: 0.5rem 0;
  position: relative;
  transition: color var(--transition);
}

.nav__link:hover {
  color: var(--navy);
}

/* Subrayado animado */
.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: var(--accent);
  transition: width 0.2s ease-in-out;
}

.nav__link:hover::after,
.nav__link.active::after {
  width: 100%;
}

.nav__link.active {
  color: var(--navy);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--navy);
}

/* --------------------------------------------------------------------------
   6. HERO (FOTO REAL PROTAGONISTA & CIFRAS SOBRE EL PLIEGUE)
   -------------------------------------------------------------------------- */
.hero {
  padding-top: 3.5rem;
  padding-bottom: 4.25rem;
  background-color: var(--bg);
  border-bottom: 1px solid var(--line);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 1.15fr;
  gap: 3.5rem;
  align-items: center;
}

.hero__content {
  display: flex;
  flex-direction: column;
}

.hero__eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-dim); /* Gris sobrio, no naranja */
  margin-bottom: 1rem;
}

.hero__title {
  font-family: var(--font-serif);
  font-size: clamp(2.35rem, 4.2vw, 3.5rem);
  font-weight: 500;
  color: var(--navy);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
  max-width: 20ch;
}

.hero__lead {
  font-size: 1.125rem;
  color: var(--ink-muted);
  line-height: 1.6;
  margin-bottom: 2rem;
  max-width: 500px;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

/* Cifras del hero: colocadas para verse sobre el pliegue */
.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--line);
}

.stat-item {
  position: relative;
}

.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 15%;
  height: 70%;
  width: 1px;
  background-color: var(--line);
}

.stat-item__number {
  display: block;
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 500;
  color: var(--navy);
  line-height: 1;
  margin-bottom: 0.35rem;
}

.stat-item__label {
  display: block;
  font-size: 0.8125rem;
  color: var(--ink-dim);
  line-height: 1.35;
}

.stat-item__note {
  grid-column: 1 / -1;
  font-size: 0.6875rem;
  color: var(--ink-dim);
  margin-top: 0.5rem;
}

/* --------------------------------------------------------------------------
   6.1 HERO COLLAGE (ECOSISTEMA GRUPO ZOIN - ZOIN BIM PROTAGONISTA)
   -------------------------------------------------------------------------- */
.hero__collage {
  background-color: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  box-shadow: 0 4px 16px -2px rgba(16, 24, 40, 0.05);
  position: relative;
  background-image: radial-gradient(circle, #CBD5E1 1px, transparent 1px);
  background-size: 22px 22px;
}

.collage__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--line);
}

.collage__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--navy);
}

.collage__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--accent);
}

.collage__location {
  font-size: 0.75rem;
  color: var(--ink-dim);
}

/* Tarjeta PROTAGONISTA: ZOIN BIM */
.collage__card--featured {
  display: flex;
  flex-direction: column;
  background-color: #FFFFFF;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  border-top: 3px solid var(--zoin-bim);
  padding: 1.5rem 1.75rem;
  box-shadow: 0 2px 8px rgba(16, 24, 40, 0.04);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  text-decoration: none;
  position: relative;
}

.collage__card--featured:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px -4px rgba(16, 24, 40, 0.08);
  border-color: var(--zoin-bim);
}

.collage__card-tag {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--zoin-bim);
  text-align: center;
  margin-bottom: 1.125rem;
  background: none;
  padding: 0;
  border: none;
  display: block;
}

.collage__logo-wrap--featured {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 0;
  margin-bottom: 1.25rem;
  min-height: 105px;
}

.collage__logo-bim {
  max-height: 105px;
  max-width: 280px;
  width: auto;
  height: auto;
  object-fit: contain;
  transition: transform var(--transition);
}

.collage__card--featured:hover .collage__logo-bim {
  transform: scale(1.03);
}

.collage__tagline-featured {
  font-size: 0.875rem;
  color: var(--ink-muted);
  line-height: 1.45;
  margin-bottom: 1rem;
  text-align: center;
}

.collage__chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.375rem;
}

.collage__chip {
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--ink-dim);
  background-color: var(--bg-alt);
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
}

/* Conectores Visuales */
.collage__connectors {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  margin: 0.875rem 0;
}

.collage__line {
  flex: 1;
  height: 1px;
  background: repeating-linear-gradient(to right, var(--line-strong) 0, var(--line-strong) 4px, transparent 4px, transparent 8px);
}

.collage__line-hub {
  padding: 0.2rem 0.75rem;
  background-color: var(--bg-alt);
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin: 0 0.75rem;
}

/* Subgrid de Filiales Complementarias */
.collage__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.collage__card--sub {
  background-color: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 1.375rem 1.25rem 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  text-decoration: none;
}

.collage__card--sub:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px -4px rgba(16, 24, 40, 0.06);
}

.collage__card--esterpla {
  border-top: 3px solid var(--esterpla);
}

.collage__card--esterpla:hover {
  border-color: var(--esterpla);
}

.collage__card--calava {
  border-top: 3px solid var(--calava);
}

.collage__card--calava:hover {
  border-color: var(--calava);
}

.collage__sub-tag {
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--esterpla);
  margin-bottom: 0.75rem;
}

.collage__sub-tag--amber {
  color: var(--calava);
}

.collage__logo-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 75px;
  width: 100%;
  margin-bottom: 0.875rem;
}

.collage__logo-sub {
  max-height: 68px;
  max-width: 175px;
  width: auto;
  height: auto;
  object-fit: contain;
  transition: transform var(--transition);
}

.collage__logo-calava {
  max-height: 70px;
  max-width: 135px;
}

.collage__card--sub:hover .collage__logo-sub {
  transform: scale(1.04);
}

.collage__sub-text {
  font-size: 0.75rem;
  color: var(--ink-dim);
  line-height: 1.4;
}

/* Pie del Collage */
.collage__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1.25rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--line);
  font-size: 0.75rem;
  color: var(--ink-dim);
}

.collage__footer-brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
}

.collage__footer-brand img {
  height: 18px;
  width: auto;
  object-fit: contain;
}

.collage__footer-tag {
  font-weight: 600;
  color: var(--navy);
}

/* --------------------------------------------------------------------------
   7. CLIENTES (LOGOS MONOCROMOS HOMOGÉNEOS CON AIRE)
   -------------------------------------------------------------------------- */
.clients-section {
  padding-top: 5rem;
  padding-bottom: 5rem;
  background-color: var(--bg-alt);
  border-bottom: 1px solid var(--line);
}

.clients-intro {
  text-align: center;
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--navy);
  margin-bottom: 3rem;
}

.clients-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 2.25rem 2.5rem;
  align-items: center;
  justify-items: center;
}

.client-logo-item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 140px;
  height: 56px;
}

.client-logo-item img {
  max-width: 130px;
  max-height: 48px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: grayscale(1) contrast(1.1);
  opacity: 0.8;
  transition: opacity var(--transition), filter var(--transition);
}

.client-logo-item:hover img {
  filter: grayscale(0) contrast(1);
  opacity: 1;
}

/* --------------------------------------------------------------------------
   8. EMPRESAS DEL GRUPO (LAYOUT EDITORIAL ALTERNADO, SIN CAJAS)
   -------------------------------------------------------------------------- */
.companies-editorial {
  display: flex;
  flex-direction: column;
  gap: 5.5rem;
}

/* Bloque Editorial 1: ZOIN BIM (Texto Izq 45% / Imagen Der 55%) */
.editorial-row {
  display: grid;
  grid-template-columns: 1.05fr 1.25fr;
  gap: 4rem;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid var(--line);
}

/* Bloque Editorial 2: EsTerPla (En espejo: Imagen Izq 55% / Texto Der 45%) */
.editorial-row--mirror {
  grid-template-columns: 1.25fr 1.05fr;
}

.editorial-row--mirror .editorial-text {
  order: 2;
}

.editorial-row--mirror .editorial-visual {
  order: 1;
}

.editorial-text {
  display: flex;
  flex-direction: column;
}

.editorial-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.editorial-logo {
  height: 32px;
  width: auto;
  object-fit: contain;
}

.editorial-domain {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--ink-dim);
}

.editorial-title {
  font-family: var(--font-serif);
  font-size: 2.125rem;
  font-weight: 500;
  color: var(--navy);
  margin-bottom: 0.35rem;
}

.editorial-tagline {
  font-size: 1rem;
  font-weight: 500;
  color: var(--ink-muted);
  margin-bottom: 1.25rem;
}

.editorial-desc {
  font-size: 0.9375rem;
  color: var(--ink-muted);
  line-height: 1.6;
  margin-bottom: 1.75rem;
}

.editorial-services {
  list-style: none;
  margin-bottom: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.editorial-services li {
  font-size: 0.875rem;
  color: var(--ink);
  line-height: 1.45;
  display: flex;
  align-items: baseline;
  gap: 0.625rem;
}

.editorial-services li::before {
  content: '—';
  color: var(--ink-dim);
  font-weight: 600;
}

.editorial-visual {
  display: flex;
  flex-direction: column;
}

.editorial-img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: var(--radius-sm);
  display: block;
}

/* Imagen vertical con pie de foto incorporado: se muestra completa */
.editorial-img--full {
  aspect-ratio: 4 / 5;
  max-width: 440px;
  margin-inline: auto;
}

.editorial-img-caption {
  font-size: 0.75rem;
  color: var(--ink-dim);
  margin-top: 0.5rem;
}

/* CALAVÁ: Franja sobria a todo el ancho (1 sola fila) */
.calava-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 2.25rem;
  background-color: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  margin-top: 1rem;
}

.calava-strip__left {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.calava-strip__logo {
  height: 28px;
  width: auto;
  object-fit: contain;
}

.calava-strip__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--calava);
  background-color: rgba(246, 160, 26, 0.1);
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-sm);
}

.calava-strip__text {
  font-size: 0.875rem;
  color: var(--ink-muted);
}

.calava-strip__contact {
  font-size: 0.875rem;
  color: var(--ink-muted);
}

.calava-strip__contact a {
  color: var(--navy);
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.calava-strip__contact a:hover {
  color: var(--calava);
}

/* --------------------------------------------------------------------------
   9. SINERGIA / MÉTODO (TEXTO SOBRE EL FONDO, SIN CAJAS)
   -------------------------------------------------------------------------- */
.synergy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
  margin-top: 3.5rem;
}

.synergy-item {
  border-top: 1px solid var(--line);
  padding-top: 1.75rem;
  display: flex;
  flex-direction: column;
}

.synergy-num {
  font-family: var(--font-serif);
  font-size: 2.75rem;
  font-weight: 500;
  color: var(--navy);
  line-height: 1;
  margin-bottom: 0.75rem;
}

.synergy-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 0.5rem;
}

.synergy-title {
  font-family: var(--font-sans);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 0.75rem;
}

.synergy-desc {
  font-size: 0.9375rem;
  color: var(--ink-muted);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   10. CONTACTO HOLDING (ÚNICA TARJETA CON BORDE)
   -------------------------------------------------------------------------- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 4.5rem;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
}

.contact-info h2 {
  font-family: var(--font-serif);
  font-size: 2.25rem;
  font-weight: 500;
  color: var(--navy);
  margin-bottom: 1rem;
}

.contact-info p {
  font-size: 1.0625rem;
  color: var(--ink-muted);
  line-height: 1.6;
  margin-bottom: 2.5rem;
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  border-top: 1px solid var(--line);
  padding-top: 2rem;
}

.contact-list-item {
  display: flex;
  gap: 1.25rem;
}

.contact-icon {
  width: 20px;
  height: 20px;
  color: var(--navy);
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.contact-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-dim);
  margin-bottom: 0.25rem;
}

.contact-val {
  font-size: 1rem;
  color: var(--navy);
  font-weight: 500;
}

.contact-val a:hover {
  color: var(--accent);
}

/* Tarjeta del formulario (Única con borde y fondo en la página) */
.contact-form-card {
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 3rem;
  box-shadow: var(--shadow-subtle);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--navy);
  margin-bottom: 0.5rem;
}

.form-control {
  width: 100%;
  padding: 0.8125rem 1rem;
  font-size: 0.9375rem;
  color: var(--ink);
  background-color: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition);
}

.form-control:focus {
  border-color: var(--navy);
  outline: 2px solid var(--navy);
  outline-offset: 1px;
}

textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

.form-note {
  font-size: 0.75rem;
  color: var(--ink-dim);
  margin-top: 1rem;
  line-height: 1.45;
}

/* --------------------------------------------------------------------------
   11. FOOTER (NAVY OSCURO CON ALTO CONTRASTE AA/AAA)
   -------------------------------------------------------------------------- */
.footer {
  background-color: var(--navy);
  color: #CBD5E1; /* Contraste > 9:1 con #101D33 */
  padding-top: 5rem;
  padding-bottom: 3.5rem;
  border-top: 1px solid var(--navy-deep);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 3.5rem;
  margin-bottom: 4rem;
}

.footer__brand {
  display: flex;
  flex-direction: column;
}

.footer__logo {
  align-self: flex-start;
  display: block;
  height: 40px;
  width: auto;
  object-fit: contain;
  margin-bottom: 1.25rem;
}

.footer__desc {
  font-size: 0.9375rem;
  color: #CBD5E1;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  max-width: 320px;
}

.footer__col-title {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #FFFFFF;
  margin-bottom: 1.25rem;
}

.footer__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer__link {
  font-size: 0.875rem;
  color: #CBD5E1;
  transition: color var(--transition);
}

.footer__link:hover {
  color: #FFFFFF;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer__bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8125rem;
  color: #94A3B8; /* Contraste > 6:1 */
  flex-wrap: wrap;
  gap: 1rem;
}

.footer__bottom strong {
  color: #FFFFFF;
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   12. ANIMACIÓN SUTIL DE ENTRADA
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.4s ease-out, transform 0.4s ease-out;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}

/* --------------------------------------------------------------------------
   13. RESPONSIVE DESIGN (360px, 480px, 600px, 768px, 1024px)
   -------------------------------------------------------------------------- */

/* Breakpoint: Tablets y pantallas medianas (≤ 1024px) */
@media (max-width: 1024px) {
  .hero__grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .section-header-split {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .editorial-row,
  .editorial-row--mirror {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .editorial-row--mirror .editorial-text {
    order: 1;
  }

  .editorial-row--mirror .editorial-visual {
    order: 2;
  }

  .synergy-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .contact-layout {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}

/* Breakpoint: Tablets verticales y móviles grandes (≤ 768px) */
@media (max-width: 768px) {
  .section {
    padding-top: 4rem;
    padding-bottom: 4rem;
  }

  /* Header y Menú Móvil Accesible */
  .header__inner {
    height: 4rem;
  }

  .nav__list {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--bg);
    border-bottom: 2px solid var(--navy);
    flex-direction: column;
    padding: 1rem 1.5rem 1.5rem;
    gap: 0;
    box-shadow: 0 12px 24px -4px rgba(16, 24, 40, 0.12);
    z-index: 999;
  }

  .nav__list.is-open {
    display: flex;
  }

  .nav__list li {
    width: 100%;
    border-bottom: 1px solid var(--line);
  }

  .nav__list li:last-child {
    border-bottom: none;
  }

  .nav__link {
    display: flex;
    align-items: center;
    padding: 0.875rem 0;
    font-size: 1.0625rem;
    width: 100%;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
  }

  /* Hero */
  .hero {
    padding-top: 2.25rem;
    padding-bottom: 3.25rem;
  }

  .hero__title {
    font-size: clamp(2rem, 6vw, 2.75rem);
    line-height: 1.2;
    max-width: 100%;
  }

  .hero__lead {
    font-size: 1.0625rem;
    line-height: 1.55;
    max-width: 100%;
    margin-bottom: 1.75rem;
  }

  .hero__stats {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .stat-item:not(:last-child)::after {
    display: none;
  }

  .stat-item {
    border-bottom: 1px solid var(--line);
    padding-bottom: 1rem;
  }

  .stat-item__number {
    font-size: 2.25rem;
  }

  /* Collage en Móvil */
  .hero__collage {
    padding: 1.375rem 1.25rem;
    border-radius: var(--radius-sm);
  }

  .collage__logo-bim {
    max-height: 85px;
    max-width: 240px;
  }

  .collage__logo-wrap--featured {
    min-height: 90px;
  }

  /* Clientes */
  .clients-section {
    padding-top: 3.5rem;
    padding-bottom: 3.5rem;
  }

  .clients-intro {
    font-size: 1.25rem;
    margin-bottom: 2rem;
  }

  .clients-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.75rem 1.25rem;
  }

  .client-logo-item {
    width: 100%;
    height: 50px;
  }

  /* Empresas Editorial */
  .companies-editorial {
    gap: 3.75rem;
  }

  .editorial-row {
    gap: 2rem;
    padding-top: 1.75rem;
  }

  .editorial-title {
    font-size: 1.875rem;
  }

  .btn--outline-navy {
    width: 100%;
  }

  .calava-strip {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.375rem 1.25rem;
  }

  .calava-strip__left {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  /* Contacto */
  .contact-form-card {
    padding: 2rem 1.5rem;
    border-radius: var(--radius-sm);
  }

  .contact-info h2 {
    font-size: 1.875rem;
  }

  /* Footer */
  .footer {
    padding-top: 3.75rem;
    padding-bottom: 2.5rem;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 2.5rem;
  }

  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
}

/* Breakpoint: Móviles intermedios (≤ 600px) */
@media (max-width: 600px) {
  /* Ocultar botón 'Contacto' del header para que no compita con el toggle */
  .header__actions .btn {
    display: none;
  }

  .header__brand-title {
    font-size: 1rem;
  }

  /* Subgrid de filiales en 1 sola columna para que EsTerPla y CALAVÁ respiren con prestancia */
  .collage__grid {
    grid-template-columns: 1fr;
    gap: 0.875rem;
  }

  .collage__card--sub {
    padding: 1.25rem 1rem;
  }

  .collage__logo-wrap {
    min-height: 60px;
    margin-bottom: 0.625rem;
  }

  .collage__logo-sub {
    max-height: 58px;
    max-width: 155px;
  }

  .collage__logo-calava {
    max-height: 58px;
    max-width: 125px;
  }

  .collage__footer {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.625rem;
    margin-top: 1rem;
    padding-top: 0.75rem;
  }

  .collage__footer-brand {
    flex-direction: column;
    gap: 0.25rem;
    text-align: center;
  }

  .collage__footer-brand span {
    font-size: 0.6875rem;
  }

  .collage__footer-tag {
    font-size: 0.6875rem;
  }
}

/* Breakpoint: Smartphones estándar y compactos (≤ 480px y 360px) */
@media (max-width: 480px) {
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .section {
    padding-top: 3.25rem;
    padding-bottom: 3.25rem;
  }

  .hero {
    padding-top: 1.75rem;
    padding-bottom: 2.75rem;
  }

  .hero__title {
    font-size: clamp(1.75rem, 7.5vw, 2.15rem);
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
    gap: 0.875rem;
  }

  .btn {
    width: 100%;
    min-height: 48px;
  }

  .link-arrow {
    width: 100%;
    justify-content: center;
    padding: 0.625rem;
  }

  .hero__collage {
    padding: 1.125rem 0.875rem;
  }

  .collage__card--featured {
    padding: 1.125rem 0.875rem;
  }

  .collage__card-tag {
    font-size: 0.625rem;
    margin-bottom: 0.75rem;
  }

  .collage__logo-bim {
    max-height: 72px;
    max-width: 205px;
  }

  .collage__logo-wrap--featured {
    min-height: 75px;
    margin-bottom: 0.875rem;
  }

  .collage__tagline-featured {
    font-size: 0.75rem;
    line-height: 1.4;
    margin-bottom: 0.75rem;
  }

  .collage__chip {
    font-size: 0.625rem;
    padding: 0.2rem 0.45rem;
  }

  .editorial-title {
    font-size: 1.625rem;
  }

  .editorial-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.35rem;
  }

  /* Evitar zoom automático en Safari iOS manteniendo al menos 16px */
  .form-control {
    font-size: 1rem;
    padding: 0.75rem;
  }

  .contact-form-card {
    padding: 1.375rem 1rem;
  }
}

/* Breakpoint extra pequeño (≤ 360px - ej. Galaxy S8 / dispositivos muy angostos) */
@media (max-width: 360px) {
  .hero__title {
    font-size: 1.625rem;
  }

  .collage__logo-bim {
    max-height: 62px;
    max-width: 180px;
  }

  .client-logo-item img {
    max-width: 95px;
    max-height: 34px;
  }
}