/* =========================================================
   AZERO GROUP — style.css
   Mobile-first. Breakpoints: 48rem (tablet) y 60rem (escritorio)
   ========================================================= */

/* ---------- 1. Tokens ---------- */
:root {
  /* Paleta tomada de la imagen de marca: letras azul marino,
     pared de mármol, mueble de nogal y detalles de bronce */
  --navy: #1D2D4F;          /* color de marca */
  --ink: #1A2236;           /* texto principal */
  --graphite: #5C616A;      /* texto secundario (contraste AA sobre fondos claros) */
  --stone: #EFEFEC;         /* mármol */
  --paper: #FAFAF9;         /* fondo general */
  --line: #DCDCD7;          /* líneas finas */
  --seam: #CFCFC9;          /* junta de las placas de mármol */
  --walnut: #2B211B;        /* nogal */
  --bronze: #A08157;        /* solo líneas, nunca texto pequeño */
  --on-dark: #EDE9E3;
  --on-dark-muted: #B9B1A7;

  --font: "Montserrat", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;

  --container: 72rem;
  --gutter: clamp(1.25rem, 5vw, 3rem);
  --header-h: 4rem;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: var(--header-h);
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, p, dl, dd { margin: 0; }

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

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

.visually-hidden {
  position: absolute !important;
  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: 1rem;
  top: -4rem;
  z-index: 100;
  padding: 0.6rem 1rem;
  background: var(--navy);
  color: #fff;
  font-size: 0.875rem;
  font-weight: 600;
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 1rem; }

/* ---------- 3. Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: clamp(4.5rem, 12vw, 8.5rem); }

.section-title {
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--navy);
}

/* Título a la izquierda, contenido a la derecha en escritorio */
.split {
  display: grid;
  gap: 2rem;
}

@media (min-width: 60rem) {
  .split {
    grid-template-columns: 4fr 8fr;
    gap: 4rem;
  }
}

/* ---------- 4. Logotipo vectorial ----------
   El SVG hereda el color del texto (currentColor):
   azul marino por defecto, blanco en el pie. */
.svg-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.logo {
  display: block;
  width: 5rem;
  color: var(--navy);
}

.logo svg {
  display: block;
  width: 100%;
  height: auto;
  fill: currentColor;
  overflow: visible;
}

.logo--light { color: #fff; }

.site-header .logo { padding-block: 0.5rem; }

/* ---------- 5. Cabecera ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--stone);
  border-bottom: 1px solid transparent;
  transition: background-color 0.3s var(--ease), border-color 0.3s var(--ease);
}

.site-header[data-scrolled="true"],
.site-header[data-open="true"] {
  background: var(--paper);
  border-bottom-color: var(--line);
}

@supports ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
  .site-header[data-scrolled="true"]:not([data-open="true"]) {
    background: rgba(250, 250, 249, 0.82);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
  }
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

/* Botón de menú (móvil) */
.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  margin-right: -10px;
  padding: 0 10px;
  background: none;
  border: 0;
  color: var(--navy);
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  height: 1.5px;
  background: currentColor;
  transition: transform 0.3s var(--ease);
}

.site-header[data-open="true"] .nav-toggle-bar--top { transform: translateY(3.75px) rotate(45deg); }
.site-header[data-open="true"] .nav-toggle-bar--bottom { transform: translateY(-3.75px) rotate(-45deg); }

/* Menú desplegable (móvil) */
.site-nav {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  padding: 0.25rem var(--gutter) 1.25rem;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-0.5rem);
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease), visibility 0s linear 0.25s;
}

.site-header[data-open="true"] .site-nav {
  opacity: 1;
  visibility: visible;
  transform: none;
  transition-delay: 0s;
}

.site-nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  display: block;
  padding: 0.95rem 0;
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--navy);
  border-bottom: 1px solid var(--line);
}

.site-nav li:last-child a { border-bottom: 0; }

@media (min-width: 48rem) {
  .nav-toggle { display: none; }

  .site-nav {
    position: static;
    padding: 0;
    background: none;
    border: 0;
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: none;
  }

  .site-nav ul {
    display: flex;
    gap: 2.5rem;
  }

  .site-nav a {
    position: relative;
    padding: 0.5rem 0;
    font-size: 0.9375rem;
    border: 0;
  }

  .site-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0.2rem;
    height: 1px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s var(--ease);
  }

  .site-nav a:hover::after,
  .site-nav a:focus-visible::after { transform: scaleX(1); }
}

/* Sin JavaScript: menú visible siempre */
.no-js .nav-toggle { display: none; }
.no-js .site-nav {
  position: static;
  padding: 0;
  background: none;
  border: 0;
  opacity: 1;
  visibility: visible;
  transform: none;
}
.no-js .site-nav ul { display: flex; gap: 1.25rem; }
.no-js .site-nav a { padding: 0.5rem 0; font-size: 0.875rem; border: 0; }

/* ---------- 6. Hero ---------- */
.hero {
  display: flex;
  flex-direction: column;
  min-height: calc(100vh - var(--header-h));
  min-height: calc(100svh - var(--header-h));
  background: var(--stone);
}

.hero-wall {
  position: relative;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem var(--gutter) 3.5rem;
  text-align: center;
  overflow: hidden;
}

/* Junta vertical entre placas de mármol */
.hero-wall::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--seam) 15%, var(--seam) 85%, transparent);
  transform-origin: top;
}

.wordmark {
  position: relative;
  width: clamp(13.5rem, 66vw, 37rem);
  /* Fondo de mármol + margen vertical: corta la junta por encima y por debajo del logo */
  padding-block: clamp(1rem, 3vw, 1.75rem);
  background: var(--stone);
}

.hero-lead {
  position: relative;
  max-width: 34ch;
  margin-top: clamp(2rem, 6vw, 3.25rem);
  font-size: clamp(1rem, 2.6vw, 1.1875rem);
  line-height: 1.6;
  color: var(--graphite);
  /* Interrumpe la junta vertical detrás del texto */
  padding-block: 0.75rem;
  background: var(--stone);
}

/* Banda de nogal: acceso directo a las filiales */
.hero-console {
  background: var(--walnut);
  box-shadow: inset 0 1px 0 var(--bronze);
  color: var(--on-dark);
}

.console-inner {
  display: grid;
  grid-template-columns: 1fr;
}

.console-link {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.25rem 1rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.console-link:last-child { border-bottom: 0; }

.console-name {
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #fff;
}

.console-desc {
  font-size: 0.875rem;
  color: var(--on-dark-muted);
  transition: color 0.3s var(--ease);
}

.console-link:hover .console-desc,
.console-link:focus-visible .console-desc { color: var(--on-dark); }

.hero-console :focus-visible { outline-color: var(--on-dark); }

@media (min-width: 48rem) {
  .console-inner { grid-template-columns: repeat(3, 1fr); }

  .console-link {
    flex-direction: column;
    align-items: flex-start;
    padding: 1.75rem 1.5rem;
    border-bottom: 0;
  }

  .console-link + .console-link { border-left: 1px solid rgba(255, 255, 255, 0.12); }

  /* La primera columna se alinea con el contenedor */
  .console-link:first-child { padding-left: 0; }
}

@media (min-width: 60rem) {
  .console-link { padding-inline: 2.5rem; }
}

/* Secuencia de entrada (única animación automática de la página) */
@media (prefers-reduced-motion: no-preference) {
  .hero-wall::before { animation: seam 1.2s var(--ease) both; }
  .wordmark .logo-azero { animation: rise 0.9s var(--ease) 0.1s both; }
  .wordmark .logo-letter { animation: spread 1.3s var(--ease) 0.4s both; }
  .wordmark .logo-letter:nth-of-type(2) { --o: 2; }
  .wordmark .logo-letter:nth-of-type(3) { --o: 1; }
  .wordmark .logo-letter:nth-of-type(4) { --o: 0; }
  .wordmark .logo-letter:nth-of-type(5) { --o: -1; }
  .wordmark .logo-letter:nth-of-type(6) { --o: -2; }
  .hero-lead { animation: fade 0.8s var(--ease) 1.2s both; }
}

@keyframes seam {
  from { transform: scaleY(0); }
  to { transform: scaleY(1); }
}

/* Unidades en px = unidades del viewBox del SVG */
@keyframes rise {
  from { opacity: 0; transform: translateY(120px); }
  to { opacity: 1; transform: none; }
}

/* Las letras de GROUP parten agrupadas hacia el centro y se separan */
@keyframes spread {
  from { opacity: 0; transform: translateX(calc(var(--o) * 520px)); }
  to { opacity: 1; transform: none; }
}

@keyframes fade {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ---------- 7. Listas de datos ---------- */
.facts {
  margin-top: 2.5rem;
  border-top: 1px solid var(--line);
}

.facts > div {
  display: grid;
  grid-template-columns: minmax(6.5rem, 11rem) 1fr;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.facts dt {
  font-size: 0.875rem;
  color: var(--graphite);
}

.facts dd {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ink);
}

.facts--flush { margin-top: 0; }

/* ---------- 8. El grupo ---------- */
.group-lead {
  max-width: 36ch;
  font-size: clamp(1.25rem, 3.2vw, 1.625rem);
  line-height: 1.45;
  color: var(--ink);
}

/* ---------- 9. Sociedades ---------- */
.companies { background: var(--stone); }

.company-list {
  margin: clamp(2.5rem, 6vw, 4rem) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--navy);
}

.company {
  display: grid;
  gap: 1.5rem;
  padding-block: clamp(2rem, 5vw, 3rem);
  border-bottom: 1px solid var(--seam);
}

.company-name {
  font-size: clamp(1.5rem, 4.5vw, 2.25rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--navy);
}

.company-body .facts { border-top-color: var(--seam); }
.company-body .facts > div { border-bottom-color: var(--seam); }

.company-link {
  display: inline-block;
  margin-top: 1.5rem;
  padding-bottom: 0.2rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--navy);
  border-bottom: 1px solid currentColor;
}

a.company-link:hover { border-bottom-color: var(--bronze); }

.company-link--pending {
  font-weight: 500;
  color: var(--graphite);
  border-bottom: 0;
}

@media (min-width: 60rem) {
  .company {
    grid-template-columns: 4fr 8fr;
    gap: 4rem;
    align-items: start;
  }
}

/* ---------- 10. Contacto ---------- */
.contact-text {
  max-width: 40ch;
  color: var(--graphite);
}

.contact-mail {
  display: inline-block;
  margin-top: 0.75rem;
  padding-bottom: 0.15rem;
  font-size: clamp(1.25rem, 4.5vw, 2rem);
  font-weight: 600;
  color: var(--navy);
  border-bottom: 1px solid var(--bronze);
  overflow-wrap: anywhere;
  transition: border-color 0.3s var(--ease);
}

.contact-mail:hover { border-bottom-color: var(--navy); }

/* ---------- 11. Pie ---------- */
.site-footer {
  padding-block: 3rem 2rem;
  background: var(--walnut);
  box-shadow: inset 0 1px 0 var(--bronze);
  color: var(--on-dark-muted);
  font-size: 0.875rem;
}

.site-footer :focus-visible { outline-color: var(--on-dark); }

.footer-inner {
  display: grid;
  gap: 2rem;
}

.footer-legal ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-legal a { color: var(--on-dark); }
.footer-legal a:hover { text-decoration: underline; text-underline-offset: 0.25em; }

.copyright {
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.8125rem;
}

@media (min-width: 48rem) {
  .footer-inner {
    grid-template-columns: auto 1fr;
    align-items: center;
  }

  .footer-legal { justify-self: end; }
  .copyright { grid-column: 1 / -1; }
}