/* ============================================================
   LAYOUT — header, navegación, hero, rejillas y footer
   ============================================================ */

/* ---------- Header ---------- */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease),
              backdrop-filter var(--dur) var(--ease);
  border-bottom: 1px solid transparent;
}

.site-header__inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-6);
}

/* Sobre el hero oscuro: transparente y en claro */
.site-header { color: var(--c-paper); }

.site-header--solid,
.site-header.is-stuck {
  background: rgba(246, 243, 238, 0.97);
  border-bottom-color: var(--c-paper-3);
  color: var(--c-ink);
}

/* ---------- Marca ---------- */

.brand {
  position: relative;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  flex-shrink: 0;
}

.brand__mark {
  width: 26px;
  height: 26px;
  color: currentColor;
  opacity: 0.9;
}

.brand__name {
  font-family: var(--f-display);
  font-size: 1.22rem;
  letter-spacing: 0.005em;
  line-height: 1;
  white-space: nowrap;
}

.brand__role {
  display: none;
  font-size: 0.6rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  opacity: 0.66;
  margin-top: 3px;
}

@media (min-width: 1100px) {
  .brand__text { display: block; }
  .brand__role { display: block; }
}

/* ---------- Navegación ---------- */

.nav { display: flex; align-items: center; gap: clamp(1.5rem, 3vw, 3rem); }

.nav__list {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 2.4vw, 2.5rem);
}

.nav__link {
  position: relative;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding-block: 0.4rem;
  white-space: nowrap;
  transition: opacity var(--dur-fast) var(--ease);
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur) var(--ease);
}
.nav__link:hover::after,
.nav__link[aria-current="page"]::after { transform: scaleX(1); }
.nav__link[aria-current="page"] { opacity: 1; }

.nav__aside {
  display: flex;
  align-items: center;
  gap: var(--s-5);
}

.nav-toggle {
  position: relative;
  z-index: 2;
  display: none;
  width: 44px; height: 44px;
  margin-right: -10px;
  align-items: center;
  justify-content: center;
  color: currentColor;
}

.nav-toggle__box { display: block; width: 24px; }
.nav-toggle__box span {
  display: block;
  height: 1.5px;
  background: currentColor;
  transition: transform var(--dur) var(--ease), opacity var(--dur-fast) var(--ease), width var(--dur) var(--ease);
}
.nav-toggle__box span + span { margin-top: 6px; width: 17px; }

html[data-nav-open] .nav-toggle__box span:first-child { transform: translateY(3.75px) rotate(45deg); }
html[data-nav-open] .nav-toggle__box span + span { width: 24px; transform: translateY(-3.75px) rotate(-45deg); }

@media (max-width: 1000px) {
  .nav-toggle { display: flex; }

  .nav {
    position: fixed;
    inset: 0;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: var(--s-8);
    padding: calc(var(--header-h) + var(--s-8)) var(--gutter) var(--s-8);
    background: var(--c-deep);
    color: var(--c-paper);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-1.5%);
    transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), visibility var(--dur);
    overflow-y: auto;
  }

  html[data-nav-open] .nav { opacity: 1; visibility: visible; transform: none; }
  html[data-nav-open] .site-header { color: var(--c-paper); background: transparent; border-bottom-color: transparent; }

  .nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--s-2);
    width: 100%;
  }

  .nav__link {
    font-family: var(--f-display);
    font-size: clamp(1.8rem, 8.1vw, 2.7rem);
    letter-spacing: -0.01em;
    text-transform: none;
    font-weight: 400;
    padding-block: 0.15em;
    opacity: 0;
    transform: translateY(14px);
  }
  .nav__link::after { display: none; }
  .nav__link[aria-current="page"] { color: var(--c-foam-2); font-style: italic; }

  html[data-nav-open] .nav__link {
    opacity: 1;
    transform: none;
    transition: opacity 0.5s var(--ease-out) calc(0.07s * var(--i, 0) + 0.08s),
                transform 0.5s var(--ease-out) calc(0.07s * var(--i, 0) + 0.08s);
  }

  .nav__aside {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--s-5);
    width: 100%;
    padding-top: var(--s-6);
    border-top: var(--hairline-dark);
  }
}

@media (prefers-reduced-motion: reduce) {
  .nav__link { opacity: 1; transform: none; }
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  min-height: min(100svh, 980px);
  display: flex;
  align-items: flex-end;
  color: var(--c-paper);
  background: var(--c-deep-2);
  overflow: hidden;
  isolation: isolate;
}

.hero--page {
  min-height: min(74svh, 720px);
  align-items: flex-end;
}

/* Portada: el bloque de texto se va a la mitad derecha y sube al centro.
   Así queda despejada la esquina inferior izquierda de la fotografía, que es
   donde está Sebastián sentado en la roca, y el volcán queda tras el titular.
   El texto sigue alineado a la izquierda dentro de su columna. */
.hero--home { align-items: center; }

/* Texto alineado a la derecha: el borde derecho de cada línea queda a plomo
   y el izquierdo sale en bandera. */
.hero--home .hero__inner {
  padding-block: calc(var(--header-h) + 2rem) var(--s-8);
  text-align: right;
}
.hero--home .hero__title,
.hero--home .hero__text { margin-left: auto; }
.hero--home .hero__actions { justify-content: flex-end; }

@media (min-width: 900px) {
  .hero--home .hero__inner {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
  }
  .hero--home .hero__inner > * { width: min(46rem, 100%); }

  /* el velo se invierte: ahora pesa a la derecha, bajo el texto */
  .hero--home::after {
    background:
      linear-gradient(to left, rgba(7, 32, 38, 0.72) 0%, rgba(7, 32, 38, 0.36) 52%, rgba(7, 32, 38, 0.1) 100%),
      linear-gradient(to top, rgba(7, 32, 38, 0.7) 0%, rgba(7, 32, 38, 0.4) 30%, rgba(7, 32, 38, 0.36) 60%, rgba(7, 32, 38, 0.6) 100%);
  }
}

/* En vertical el recorte se corre hacia la izquierda de la fotografía:
   si no, Sebastián queda fuera de cuadro. */
@media (max-width: 700px) {
  .hero--home .hero__media img { object-position: 26% 62%; }

  /* Se abre el espacio entre el párrafo y los botones. Como el bloque está
     centrado verticalmente, crecer por el medio sube el texto y baja los
     botones a la vez (unos 45 px cada uno, ~5% de la altura), y deja a la
     vista a Sebastián sentado en la roca. */
  .hero--home .hero__actions { margin-top: clamp(5rem, 15vh, 9rem); }
}

.hero__media {
  position: absolute;
  inset: -6% 0 -6% 0;
  z-index: -2;
}

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 55%;
}

.hero__media img[data-parallax] { will-change: transform; }

/* Velo: garantiza contraste del texto sobre cualquier fotografía */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(to right, rgba(7, 32, 38, 0.68) 0%, rgba(7, 32, 38, 0.34) 52%, rgba(7, 32, 38, 0.08) 100%),
    linear-gradient(to top, rgba(7, 32, 38, 0.72) 0%, rgba(7, 32, 38, 0.42) 26%, rgba(7, 32, 38, 0.38) 60%, rgba(7, 32, 38, 0.6) 100%);
}

.hero__inner {
  width: 100%;
  padding-block: clamp(3.5rem, 8vh, 7rem);
  padding-top: calc(var(--header-h) + 4rem);
}

.hero__title {
  font-size: var(--t-hero);
  line-height: 1.02;
  color: var(--c-paper);
  max-width: 17ch;
  margin-bottom: var(--s-6);
}

.hero--page .hero__title { font-size: var(--t-h1); max-width: 14ch; }

.hero__text {
  max-width: 46ch;
  color: rgba(246, 243, 238, 0.86);
  font-size: var(--t-lead);
  line-height: 1.6;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s-4) var(--s-6);
  margin-top: var(--s-7);
}

/* Indicador de scroll: el ratón clásico, sólo en escritorio */
.hero__scroll {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: clamp(1.75rem, 4vh, 3rem);
  display: none;
  color: rgba(246, 243, 238, 0.55);
}

.hero__mouse { width: 26px; height: 42px; }
.hero__wheel { animation: wheel 2.4s var(--ease) infinite; }

@media (min-width: 1000px) { .hero__scroll { display: block; } }

@keyframes wheel {
  0%   { transform: translateY(0);   opacity: 0; }
  20%  { opacity: 1; }
  70%  { transform: translateY(10px); opacity: 0; }
  100% { transform: translateY(10px); opacity: 0; }
}

/* ---------- Rejillas editoriales ---------- */

.grid {
  display: grid;
  gap: clamp(2rem, 5vw, 5rem);
}

.grid--2 { grid-template-columns: 1fr; }
.grid--sidebar { grid-template-columns: 1fr; }
.grid--3 { grid-template-columns: 1fr; gap: clamp(2rem, 4vw, 3.5rem); }

@media (min-width: 860px) {
  .grid--2 { grid-template-columns: 1fr 1fr; align-items: center; }
  .grid--sidebar { grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); align-items: center; }
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
}

.grid--reverse > *:first-child { order: 0; }
@media (min-width: 860px) {
  .grid--reverse > *:first-child { order: 2; }
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--c-deep-2);
  color: var(--c-foam-2);
  padding-top: var(--section-y-sm);
  position: relative;
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 60%;
  background: radial-gradient(70% 100% at 20% 100%, rgba(31, 92, 102, 0.35), transparent 70%);
  pointer-events: none;
}

.site-footer > * { position: relative; }

.footer__grid {
  display: grid;
  gap: var(--s-8);
  grid-template-columns: 1fr;
  padding-bottom: var(--s-9);
}

@media (min-width: 720px) {
  .footer__grid { grid-template-columns: repeat(2, 1fr); gap: var(--s-8) var(--s-6); }
}
@media (min-width: 1000px) {
  .footer__grid { grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: var(--s-6); }
}

.footer__brand .brand { margin-bottom: var(--s-5); color: var(--c-paper); }
.footer__brand p { max-width: 34ch; font-size: 0.95rem; }

.footer__title {
  font-family: var(--f-sans);
  font-size: var(--t-eyebrow);
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
  color: var(--c-foam);
  opacity: 0.75;
  margin-bottom: var(--s-5);
}

.footer__list li + li { margin-top: var(--s-3); }
.footer__list a {
  font-size: 0.95rem;
  transition: color var(--dur-fast) var(--ease);
}
.footer__list a:hover { color: var(--c-paper); }

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3) var(--s-6);
  align-items: center;
  justify-content: space-between;
  padding-block: var(--s-5) var(--s-6);
  border-top: var(--hairline-dark);
  font-size: 0.8rem;
  color: var(--c-foam-2);
  opacity: 0.8;
}
.footer__bottom a:hover { color: var(--c-paper); }