/* ============================================================
   Header / navegación
   ============================================================ */
#sitio-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(5, 5, 5, .86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.sitio-header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: var(--space-3) var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}
.sitio-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
}
.sitio-logo:hover { color: var(--color-text); }
#sitio-menu-btn { display: none; }

.sitio-nav {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}
.sitio-nav-link {
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--color-text-muted);
}
.sitio-nav-link:hover, .sitio-nav-link[aria-current="page"] { color: var(--color-gold-bright); }

.sitio-nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: var(--control-h);
  padding: 0 var(--space-5);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: .02em;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-gold-bright);
  background: linear-gradient(165deg, var(--color-gold-bright) 0%, var(--color-gold) 60%, #B08F3C 100%);
  color: #0B0A07;
  text-decoration: none;
  white-space: nowrap;
  transition: box-shadow var(--duration-base) var(--ease-out), transform var(--duration-fast) var(--ease-out);
}
.sitio-nav-cta:hover { color: #0B0A07; box-shadow: var(--shadow-md), var(--glow-gold-md); transform: translateY(-2px); }

@media (max-width: 860px) {
  #sitio-menu-btn { display: inline-flex; }
  .sitio-header-inner { position: relative; }
  .sitio-nav {
    position: absolute;
    top: calc(100% + var(--space-3));
    right: var(--space-5);
    left: auto;
    width: min(280px, calc(100vw - var(--space-5) * 2));
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-1);
    padding: var(--space-3);
    background: var(--color-surface);
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg), var(--glow-gold-sm);
    display: none;
    opacity: 0;
    transform: translateY(-8px);
  }
  .sitio-nav.abierto {
    display: flex;
    animation: fade-in-up var(--duration-base) var(--ease-out) forwards;
  }
  .sitio-nav-link {
    padding: var(--space-3);
    border-radius: var(--radius-sm);
    transition: background-color var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
  }
  .sitio-nav-link:hover, .sitio-nav-link[aria-current="page"] { background: var(--tint-gold-1); }
  .sitio-nav-cta { order: 99; margin-top: var(--space-2); justify-content: center; }
}

/* ============================================================
   Footer
   ============================================================ */
#sitio-footer {
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-8);
}
.sitio-footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: var(--space-7) var(--space-5);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}
.sitio-footer-crest { opacity: .8; margin-bottom: var(--space-2); }

/* ============================================================
   Estructura de página compartida
   ============================================================ */
.sitio-main { display: block; }
.sitio-section {
  max-width: var(--container);
  margin: 0 auto;
  padding: var(--space-8) var(--space-5);
}
.sitio-section-header { max-width: 62ch; margin-bottom: var(--space-6); }
.sitio-section-header.centrado { max-width: 62ch; margin-inline: auto; text-align: center; }
.sitio-section-header.centrado h2.ruled::after { left: 50%; transform: translateX(-50%); transform-origin: center; }

/* ============================================================
   Hero de página interior — foto real a sangre, degradado a negro
   ============================================================ */
.sitio-hero {
  position: relative;
  min-height: 46vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-5) var(--space-8);
  text-align: center;
  overflow: clip;   /* clip, no hidden: hidden crea scroll container y rompe view() */
}
.sitio-hero h1 {
  font-size: var(--text-4xl);
  text-wrap: balance;
  animation: fade-in-up var(--duration-reveal) var(--ease-out) 120ms backwards;
}
.sitio-hero .eyebrow { animation: fade-in var(--duration-reveal) var(--ease-out) backwards; }
.sitio-hero p {
  max-width: 56ch;
  margin: 0 auto var(--space-5);
  color: var(--color-text-muted);
  animation: fade-in-up var(--duration-reveal) var(--ease-out) 280ms backwards;
}
.sitio-hero p:last-child { margin-bottom: 0; }
@media (max-width: 640px) {
  .sitio-hero { min-height: 38vh; }
  .sitio-hero h1 { font-size: var(--text-3xl); }
}
.sitio-hero-foto {
  filter: saturate(.45) contrast(1.05);
}
/* El degradado va en el HERO, no en la capa de foto: la capa se desplaza con el
   parallax y arrastraba su propia sombra, destapando una franja de foto cruda en el
   borde inferior conforme bajabas. Anclado al contenedor, cubre siempre el 100%. */
.sitio-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(5, 5, 5, .55) 0%, rgba(5, 5, 5, .72) 45%, var(--color-bg) 100%);
}
.sitio-hero > *:not(.sitio-hero-foto) { position: relative; z-index: 1; }

/* Indicador "baja": el hero sale casi vacío y la página parece terminar ahí, cuando el
   contenido entra con la animación al hacer scroll. Etiqueta dorada + un hilo por el que
   cae un destello (mismo lenguaje que el indicador del inicio). Se inyecta desde
   sitio-nav.js en todo `.sitio-hero`; clic = baja a la siguiente sección. */
.sitio-hero { padding-bottom: calc(var(--space-8) + var(--space-6)); }
.sitio-hero > .sitio-hero-scroll {
  position: absolute;
  bottom: var(--space-4);
  left: 50%;
  translate: -50% 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  height: auto;
  padding: var(--space-2) var(--space-4);
  background: transparent;
  border: 0;
  box-shadow: none;
  cursor: pointer;
  font-size: var(--text-2xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--color-gold);
  animation: fade-in var(--duration-reveal) var(--ease-out) 900ms backwards;
}
.sitio-hero > .sitio-hero-scroll:hover { color: var(--color-gold-bright); background: transparent; box-shadow: none; transform: none; }
.sitio-hero-scroll-hilo {
  position: relative;
  width: 2px;
  height: 44px;
  overflow: hidden;
  background: rgba(201, 168, 76, .4);
  border-radius: var(--radius-full);
}
.sitio-hero-scroll-hilo::after {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 16px;
  background: linear-gradient(180deg, transparent, var(--color-gold-bright));
  animation: sitio-scroll-cae 1.9s var(--ease-out) infinite;
}
@keyframes sitio-scroll-cae {
  0% { transform: translateY(-16px); }
  100% { transform: translateY(44px); }
}
@media (prefers-reduced-motion: reduce) {
  .sitio-hero-scroll-hilo::after { animation: none; transform: translateY(14px); }
}

/* ============================================================
   Ornamento divisor — rombo dorado entre hairlines. Reemplaza la línea de corte:
   separa sin cajas ni bordes duros (lenguaje de rótulo de estudio).
   ============================================================ */
.sitio-ornamento {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  margin: var(--space-7) auto;
  max-width: 420px;
  color: var(--color-gold);
}
.sitio-ornamento::before, .sitio-ornamento::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(201, 168, 76, .45));
}
.sitio-ornamento::after { background: linear-gradient(90deg, rgba(201, 168, 76, .45), transparent); }
.sitio-ornamento span {
  width: 7px;
  height: 7px;
  rotate: 45deg;
  background: var(--color-gold);
  box-shadow: var(--glow-gold-sm);
}
.sitio-ornamento span:nth-child(2) { width: 4px; height: 4px; opacity: .6; }
.sitio-ornamento span:nth-child(3) { width: 7px; height: 7px; }

/* ============================================================
   Iconos de línea del estudio (ver iconos.js)
   ============================================================ */
.sitio-icono {
  width: 32px;
  height: 32px;
  color: var(--color-gold);
  transition: transform var(--duration-base) var(--ease-spring), color var(--duration-base) var(--ease-out);
}
.sitio-icono-lg { width: 44px; height: 44px; }

/* ============================================================
   Marco ornamental — para retratos y fotos destacadas (esquinas doradas)
   ============================================================ */
.sitio-marco {
  position: relative;
  padding: var(--space-2);
}
.sitio-marco::before, .sitio-marco::after {
  content: '';
  position: absolute;
  width: 22px;
  height: 22px;
  border: 1px solid var(--color-gold);
  opacity: .55;
  transition: opacity var(--duration-base) var(--ease-out), width var(--duration-base) var(--ease-out), height var(--duration-base) var(--ease-out);
}
.sitio-marco::before { top: 0; left: 0; border-right: 0; border-bottom: 0; }
.sitio-marco::after { bottom: 0; right: 0; border-left: 0; border-top: 0; }
.sitio-marco:hover::before, .sitio-marco:hover::after { opacity: 1; width: 34px; height: 34px; }

/* ============================================================
   Destello que sigue al cursor — se dibuja donde está el ratón, no como
   luz de fondo permanente. Va sobre cualquier tarjeta/tile con [data-destello].
   ============================================================ */
[data-destello] { position: relative; isolation: isolate; }
[data-destello]::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(220px circle at var(--mx, 50%) var(--my, 50%), rgba(232, 201, 109, .16), transparent 65%);
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out);
  pointer-events: none;
  z-index: 0;
}
[data-destello]:hover::before { opacity: 1; }
[data-destello] > * { position: relative; z-index: 1; }

/* ============================================================
   Collage asimétrico — fotos reales escalonadas y superpuestas
   ============================================================ */
.sitio-collage {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}
/* Casi en blanco y negro por default para que el collage no pelee con el negro+dorado;
   recupera color al pasar el ratón — el color es la recompensa de la interacción. */
.sitio-collage img {
  width: 100%;
  border-radius: var(--radius-md);
  object-fit: cover;
  box-shadow: var(--shadow-lg);
  filter: grayscale(.85) contrast(1.05) brightness(.92);
  transition: filter var(--duration-slow) var(--ease-out), transform var(--duration-slow) var(--ease-out);
}
.sitio-collage img:hover {
  filter: grayscale(0) contrast(1) brightness(1);
  transform: scale(1.03);
  z-index: 3;
}
.sitio-collage img:nth-child(1) { aspect-ratio: 3 / 4; }
.sitio-collage img:nth-child(2) { aspect-ratio: 1; margin-top: var(--space-8); }
.sitio-collage img:nth-child(3) {
  position: absolute;
  width: 46%;
  aspect-ratio: 4 / 3;
  left: 27%;
  bottom: -12%;
  border: 3px solid var(--color-bg);
}

/* ============================================================
   Banda a sangre — foto de ancho completo con parallax y degradado a negro
   ============================================================ */
.sitio-banda {
  position: relative;
  min-height: 460px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: clip;   /* clip, no hidden: hidden crea scroll container y rompe view() */
  text-align: center;
}
.sitio-banda::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, var(--color-bg) 0%, rgba(5, 5, 5, .62) 35%, rgba(5, 5, 5, .62) 65%, var(--color-bg) 100%);
}
.sitio-banda-contenido {
  position: relative;
  z-index: 1;
  max-width: 62ch;
  padding: var(--space-8) var(--space-5);
}

/* ============================================================
   Enlace de texto con subrayado que se dibuja al hover
   ============================================================ */
.sitio-enlace {
  position: relative;
  display: inline-block;
  font-weight: 600;
}
.sitio-enlace::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 100%;
  height: 1px;
  background: var(--rule-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-base) var(--ease-out);
}
.sitio-enlace:hover::after { transform: scaleX(1); }