/* =========================================================
   LAYOUT — header, portada de capítulo, cierre de capítulo, footer
   ========================================================= */

/* ---------- Header: solo logo + redes ---------- */
.site-header__logo {
  position: fixed; z-index: 50;
  top: calc((var(--header-h) - 52px) / 2); left: var(--gutter);
  display: block;
}
.site-header__logo img { height: clamp(42px, 3.9vw, 52px); width: auto; }

.social {
  display: flex; gap: 6px;
}
.site-header .social {
  position: fixed; z-index: 50;
  top: calc((var(--header-h) - 40px) / 2); right: var(--gutter);
}

/* Logos de marca a color, sobre una chapa clara — así no se pierden contra
   fondos oscuros, fotos o el acento rosa. */
.social a {
  display: grid; place-items: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--color-white);
  box-shadow: 0 1px 3px color-mix(in srgb, var(--color-black) 18%, transparent);
  transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) ease;
}
.social a:hover, .social a:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 4px 10px color-mix(in srgb, var(--color-black) 22%, transparent);
}
.social svg { width: 22px; height: 22px; border-radius: 50%; overflow: hidden; }

/* ---------- Capítulo ---------- */
.chapter { position: relative; }
.chapter__body { padding-bottom: 0; }

/* ---------- Portada de capítulo (hero) ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex; flex-direction: column; justify-content: flex-end;
  overflow: hidden;
  isolation: isolate;
  background: var(--color-black);
  color: var(--color-white);
}
.hero > .media--fill { z-index: -2; }

/* Hero partido: dos fotos lado a lado en vez de una sola a pantalla completa
   (se activa pasando un arreglo de 2 claves en heroImage). */
.hero__split { position: absolute; inset: 0; z-index: -2; display: flex; }
.hero__split-item { position: relative; height: 100%; flex: var(--w, 50) 1 0; min-width: 0; overflow: hidden; }
.hero__split-item + .hero__split-item { border-left: 1px solid color-mix(in srgb, var(--color-white) 18%, transparent); }
.hero__split-media { position: relative; width: 100%; height: 100%; aspect-ratio: auto; }

.hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(to top, var(--color-scrim) 0%, transparent 58%),
    linear-gradient(to bottom, var(--color-scrim-soft) 0%, transparent 28%);
  pointer-events: none;
}

.hero__chapter {
  position: absolute;
  top: calc(var(--header-h) + 2.5rem); left: var(--gutter);
  display: flex; align-items: center; gap: 0.9rem;
}
.hero__chapter::before { content: ""; width: 44px; height: 1px; background: currentColor; }
.hero__chapter span { opacity: 0.55; }

.hero__content {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 24rem);
  align-items: end;
  gap: var(--space-s) var(--space-m);
  padding: 0 var(--gutter-r) clamp(56px, 9vh, 104px) var(--gutter);
}

.hero__number {
  display: block;
  font-family: var(--font-display);
  font-size: var(--fs-mega);
  line-height: 0.78;
  color: transparent;
  -webkit-text-stroke: 1.5px color-mix(in srgb, var(--color-white) 75%, transparent);
  margin-bottom: 0.08em;
  margin-left: -0.04em;
}

.hero__title { margin-left: -0.03em; }

.hero__quote {
  color: color-mix(in srgb, var(--color-white) 90%, transparent);
  padding-bottom: 0.35em;
  border-left: 1px solid var(--color-accent);
  padding-left: 1.25rem;
}

.hero__cue {
  position: absolute; left: 50%; bottom: 0;
  width: 1px; height: clamp(36px, 7vh, 72px);
  background: color-mix(in srgb, var(--color-white) 55%, transparent);
}

/* Portada principal (capítulo 01) */
.hero--intro .hero__title { font-size: var(--fs-mega); line-height: 0.8; }
.hero--intro .hero__kicker { display: block; margin-bottom: 1.5rem; color: var(--color-accent); }

/* Solo escritorio: títulos de portada más chicos para que se vean las botargas */
@media (min-width: 1024px) {
  .hero .hero__title { font-size: clamp(3.4rem, 8vw, 8rem); }
  .hero .hero__number { font-size: clamp(5rem, 12vw, 12rem); }
  .hero--intro .hero__title { font-size: clamp(5rem, 12vw, 12rem); }
}

/* ---------- Cierre de capítulo → siguiente ----------
   Transición breve: una línea corta + "Siguiente — 03 Título" en una fila.
   A propósito compacta, para no acumular espacio muerto entre capítulos. */
.chapter-end {
  display: flex; align-items: center; gap: 1.1rem;
  padding: calc(var(--space-s) * 1.1) var(--gutter);
  max-width: 32rem;
}
.chapter-end__line {
  position: relative; overflow: hidden; flex: none;
  width: clamp(30px, 4.4vw, 52px); height: 1px;
  background: var(--line);
}
.chapter-end__line::after {
  content: ""; position: absolute; inset: 0;
  background: var(--ink);
  transform: scaleX(0); transform-origin: left;
  transition: transform 700ms var(--ease-out) 100ms;
}
.chapter-end.is-in .chapter-end__line::after { transform: scaleX(1); }

.chapter-end__next { display: flex; align-items: baseline; gap: 0.65rem; min-width: 0; }
.chapter-end__num {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--color-accent);
  flex: none;
}
.chapter-end__title {
  font-family: var(--font-label); font-size: 0.88rem; letter-spacing: 0.04em;
  color: var(--ink-muted);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  transition: color var(--dur-fast) ease;
}
.chapter-end:hover .chapter-end__title,
.chapter-end:focus-visible .chapter-end__title { color: var(--ink); }

/* ---------- Footer ---------- */
.site-footer {
  padding: var(--space-l) var(--gutter-r) calc(var(--space-s) + env(safe-area-inset-bottom)) var(--gutter);
  border-top: 1px solid var(--line);
}
.footer__cta { display: grid; gap: 1.5rem; margin-bottom: var(--space-l); }
.footer__cta-link {
  display: inline-flex; align-items: center; gap: 0.25em;
  width: fit-content;
  transition: color var(--dur-fast) ease;
}
.footer__cta-link svg { width: 0.6em; height: 0.6em; stroke-width: 1.2; transition: transform var(--dur) var(--ease-out); }
.footer__cta-link:hover { color: var(--color-accent); }
.footer__cta-link:hover svg { transform: translateX(0.15em); }
.footer__contacts { display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem 2.5rem; }
.footer__contacts a { color: var(--ink-muted); transition: color var(--dur-fast) ease; }
.footer__contacts a:hover { color: var(--ink); }
.footer__contact--icon { display: inline-flex; align-items: center; gap: 0.5em; }
.footer__contact-icon { display: inline-flex; width: 1.5em; height: 1.5em; border-radius: 50%; overflow: hidden; flex: none; }
.footer__contact-icon svg { width: 100%; height: 100%; }

.footer__bar {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1.5rem;
  padding-top: var(--space-s);
  border-top: 1px solid var(--line);
}
.footer__bar img { height: 34px; width: auto; }
.footer__copy { color: var(--ink-muted); }

/* ---------- Responsive ---------- */
@media (max-width: 767px) {
  :root { --header-h: 74px; }

  .site-header .social a { width: 36px; height: 36px; }

  .hero { min-height: 92vh; min-height: 92svh; }
  .hero__split { flex-direction: column; }
  .hero__split-item + .hero__split-item { border-left: 0; border-top: 1px solid color-mix(in srgb, var(--color-white) 18%, transparent); }
  .hero__content {
    grid-template-columns: 1fr;
    padding-bottom: clamp(88px, 14vh, 120px); /* espacio para la barra de navegación inferior */
  }
  .hero__quote { max-width: 32ch; }
  .hero__cue { display: none; }

  .site-footer { padding-bottom: calc(96px + env(safe-area-inset-bottom)); }
  .footer__cta-link { font-size: clamp(3rem, 16vw, 5rem); }
}