/* Cabecera editorial: el marco conserva su altura y solo se recoge el panel visible. */
.site-nav {
  --header-trim: 14px;
  --header-shift: -7px;
  --header-line-height: 3px;
  height: var(--nav-height);
  background: transparent;
  border: 0;
  isolation: isolate;
  pointer-events: none;
}

.site-nav::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 100%;
  z-index: 0;
  background: var(--ivory);
  pointer-events: none;
  transition: height .28s cubic-bezier(.22, 1, .36, 1), background-color .24s ease;
}

.site-nav.is-scrolled::before {
  height: calc(100% - var(--header-trim));
  background: rgba(255, 249, 238, .9);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

/* Un salvia algo más profundo mantiene la legibilidad sobre cualquier fotografía. */
.site-nav.is-scrolled .site-links a,
.site-nav.is-scrolled > .site-visit,
.site-nav.is-scrolled > .site-mobile-menu > summary {
  color: #5e674f;
}

.site-nav > .site-brand,
.site-nav > .site-links,
.site-nav > .site-visit {
  position: relative;
  z-index: 1;
  pointer-events: auto;
  transition: transform .28s cubic-bezier(.22, 1, .36, 1);
}

/* Mantener el desplegable móvil anclado al ancho de la cabecera. */
.site-nav > .site-mobile-menu {
  position: static;
  z-index: 1;
  pointer-events: auto;
}

.site-mobile-menu > summary {
  transition: transform .28s cubic-bezier(.22, 1, .36, 1);
}

.site-nav.is-scrolled > .site-brand {
  transform: translateY(var(--header-shift)) scale(.92);
}

.site-nav.is-scrolled > .site-links,
.site-nav.is-scrolled > .site-visit,
.site-nav.is-scrolled > .site-mobile-menu > summary {
  transform: translateY(var(--header-shift));
}

/* Los seudoelementos del enlace siguen reservando la anchura de sus dos estilos. */
.site-nav .site-links a,
.site-nav .site-links a:hover,
.site-nav .site-links a:focus-visible {
  border-bottom-color: transparent;
}

.site-links a > span {
  position: relative;
}

.site-links a > span::after {
  content: "";
  position: absolute;
  inset: auto 0 -6px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .5s cubic-bezier(.25, .1, .25, 1);
  pointer-events: none;
}

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

.site-visit > span {
  display: inline-block;
  transition: transform .5s cubic-bezier(.25, .1, .25, 1);
}

.site-visit:hover > span,
.site-visit:focus-visible > span {
  transform: translate(3px, -3px);
}

/* Línea salvia constante: acompaña la cabecera sin indicar progreso. */
.site-nav > .site-header-rule {
  position: absolute;
  inset: auto 0 0;
  height: var(--header-line-height);
  z-index: 2;
  background: var(--sage);
  pointer-events: none;
  transition: bottom .28s cubic-bezier(.22, 1, .36, 1);
}

.site-nav.is-scrolled > .site-header-rule {
  bottom: var(--header-trim);
}

@media (max-width: 960px) {
  .site-nav {
    --header-trim: 8px;
    --header-shift: -4px;
    --header-line-height: 2px;
  }

  .site-nav.is-scrolled > .site-brand {
    transform: translateY(var(--header-shift)) scale(.96);
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-nav::before,
  .site-nav > .site-brand,
  .site-nav > .site-links,
  .site-nav > .site-visit,
  .site-nav > .site-header-rule,
  .site-mobile-menu > summary,
  .site-mobile-menu > summary > span,
  .site-links a > span::after,
  .site-visit > span {
    animation: none;
    transition: none;
  }

  .site-visit:hover > span,
  .site-visit:focus-visible > span {
    transform: none;
  }
}

/* El acceso de visita comparte el énfasis de los apartados al interactuar. */
.site-nav > .site-visit { font-synthesis: weight; }
.site-nav > .site-visit:hover,
.site-nav > .site-visit:focus-visible {
  font-style: italic;
  font-weight: 700;
}

/* Cabecera continua: proporciones de la referencia, con altura constante. */
:root {
  --nav-height: 100px;
  --header-safe-top: env(safe-area-inset-top, 0px);
  --header-total-height: calc(var(--nav-height) + var(--header-safe-top));
}

html {
  background: var(--ivory);
  scroll-padding-top: var(--header-total-height);
}

.site-nav,
.site-nav.is-scrolled {
  position: sticky;
  top: 0;
  left: auto;
  right: auto;
  box-sizing: border-box;
  height: var(--header-total-height);
  margin-inline: 0;
  padding-top: var(--header-safe-top);
  padding-bottom: 0;
  padding-inline: max(4vw, env(safe-area-inset-left, 0px), env(safe-area-inset-right, 0px));
  background: var(--ivory);
  border: 0;
  border-radius: 0;
  box-shadow: none;
  transition: none;
}

.site-nav::before,
.site-nav.is-scrolled::before {
  height: 100%;
  background: var(--ivory);
  border: 0;
  border-radius: 0;
  box-shadow: none;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  transition: none;
}

.site-nav > .site-header-rule,
.site-nav.is-scrolled > .site-header-rule {
  display: none;
  bottom: 0;
  background: var(--sage);
  transition: none;
}

.visual-hero {
  height: calc(100svh - var(--header-total-height));
}

@media (min-width: 1800px) {
  .site-nav,
  .site-nav.is-scrolled {
    padding-inline: max(6vw, env(safe-area-inset-left, 0px), env(safe-area-inset-right, 0px));
  }
}

@media (max-width: 1100px) {
  .site-nav,
  .site-nav.is-scrolled {
    padding-inline: max(28px, env(safe-area-inset-left, 0px), env(safe-area-inset-right, 0px));
  }
}

@media (max-width: 960px) {
  :root { --nav-height: 110px; }
  .site-nav,
  .site-nav.is-scrolled {
    padding-inline: max(24px, env(safe-area-inset-left, 0px), env(safe-area-inset-right, 0px));
  }

  .site-mobile-menu nav {
    background: var(--ivory);
    max-height: calc(100svh - var(--header-total-height));
    padding-bottom: max(30px, env(safe-area-inset-bottom, 0px));
  }
}

/* El logo conserva su tono oliva y gana aire dentro de la nueva franja. */
.site-nav > .site-brand {
  flex: 0 0 180px;
  width: 180px;
  height: 80px;
}

.site-nav > .site-brand::before { background: #59634e; }

@media (min-width: 961px) and (max-width: 1100px) {
  .site-nav > .site-brand {
    flex-basis: 160px;
    width: 160px;
  }
}

/* Portada transparente: la luz de la foto se desplaza con ella, sin sombra fija. */
.site-nav,
.site-nav.is-scrolled {
  position: fixed;
  left: 0;
  right: 0;
  background: transparent;
}

.visual-hero { height: 100svh; }

.site-nav::before,
.site-nav.is-scrolled::before {
  height: 100%;
  background: var(--ivory);
  opacity: 1;
  transition: opacity .32s ease;
}

.site-nav:not(.is-scrolled)::before { opacity: 0; }

.site-nav > .site-brand::before {
  transition: background-color .32s ease;
}

.site-nav .site-links a,
.site-nav > .site-visit,
.site-nav > .site-mobile-menu > summary {
  transition: color .32s ease;
}

.site-nav:not(.is-scrolled) > .site-brand::before { background: #fff9ee; }
.site-nav:not(.is-scrolled) > .site-brand img { filter: brightness(0) invert(1); }

.site-nav:not(.is-scrolled) .site-links a,
.site-nav:not(.is-scrolled) > .site-visit,
.site-nav:not(.is-scrolled) > .site-mobile-menu > summary {
  color: #fff9ee;
}

.site-nav:not(.is-scrolled) > .site-visit { border-color: currentColor; }

/* Abrir el menú mantiene una superficie marfil uniforme y el logo oliva. */
.site-nav:has(.site-mobile-menu[open])::before { opacity: 1; transition: none; }
.site-nav:has(.site-mobile-menu[open]) > .site-brand::before { background: #59634e; }
.site-nav:has(.site-mobile-menu[open]) > .site-brand img { filter: none; }
.site-nav:has(.site-mobile-menu[open]) > .site-mobile-menu > summary { color: var(--sage); }

@media (prefers-reduced-motion: reduce) {
  .site-nav::before,
  .site-nav > .site-brand::before,
  .site-nav .site-links a,
  .site-nav > .site-visit,
  .site-nav > .site-mobile-menu > summary {
    transition: none;
  }
}

/* El marfil común exige un oliva ligeramente más profundo en la navegación. */
.site-links a,
.site-mobile-menu nav a { color: #5e674f; }