/* ===== Experiencia inmersiva JE (2026-10-01) =====
   Historia: "La fachada nace" — plano → aluminio → vidrio → luz, controlada con el scroll.
   Se suma a styles-v2.css; no reemplaza nada. */
:root{ --obra-pos: 50% 50%; }
@media (max-aspect-ratio: 1/1){ :root{ --obra-pos: 78% 50%; } }

/* El contenedor alto da el recorrido; la portada queda fija dentro */
.obra{ position: relative; height: 340vh; }
.obra > .hero{ position: sticky; top: 0; height: 100vh; height: 100svh; min-height: 0; overflow: hidden; }
.obra .hero-bg img, .obra .hero-bg canvas{ position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: var(--obra-pos); }

/* Capas de la obra (de abajo hacia arriba) */
.capa-base{ filter: grayscale(1) contrast(1.15) brightness(var(--base-b, .16)); }
.capa-plano{ pointer-events: none; opacity: var(--plano-o, 1); }
.capa-vidrio{ filter: saturate(.35) brightness(.5) contrast(1.1) hue-rotate(-8deg); clip-path: inset(var(--vidrio-top, 100%) 0 0 0); }
.capa-luz{ opacity: var(--luz, 0); filter: saturate(calc(.9 + var(--luz, 0) * .2)); }
.obra-brillo{ position: absolute; inset: 0; z-index: -1; pointer-events: none; opacity: var(--luz, 0);
  background: radial-gradient(48% 40% at 70% 52%, rgba(227,197,103,.22), transparent 70%); }
/* Franja de reflejo que cruza los vidrios al instalarse */
.obra-reflejo{ position: absolute; inset: 0; z-index: -1; pointer-events: none; overflow: hidden; opacity: var(--refl-o, 0); }
.obra-reflejo::before{ content: ""; position: absolute; top: -20%; bottom: -20%; width: 18%; left: var(--refl-x, -20%);
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.16), transparent); transform: skewX(-18deg); }

/* Textos de cada etapa: lado izquierdo, zona oscura (contraste planeado) */
.obra-etapas{ position: absolute; left: var(--gutter, 24px); bottom: clamp(120px, 22vh, 220px); width: min(560px, 82vw); z-index: 3; pointer-events: none; }
.etapa{ position: absolute; left: 0; bottom: 0; opacity: 0; transform: translateY(24px); transition: none; }
/* Velocidad (2026-10-02): el primer texto se ve desde el inicio, sin esperar al JS (es lo primero que mide Google) */
.etapa:first-child{ opacity: 1; transform: none; }
.etapa small{ display: block; font-size: 12px; letter-spacing: .24em; text-transform: uppercase; color: var(--gold-2); margin-bottom: 12px; }
.etapa p{ font-size: clamp(30px, 4.6vw, 64px); line-height: 1.04; font-weight: 600; letter-spacing: -.02em; color: var(--text); text-shadow: 0 2px 30px rgba(0,0,0,.55); }
.etapa p em{ font-style: normal; color: var(--gold-2); }

/* Riel de avance: 1 Plano · 2 Aluminio · 3 Vidrio · 4 Luz */
.obra-riel{ position: absolute; right: var(--gutter, 24px); top: 50%; transform: translateY(-50%); z-index: 3; display: flex; flex-direction: column; gap: 14px; pointer-events: none; }
.obra-riel span{ display: flex; align-items: center; gap: 10px; justify-content: flex-end; font-size: 11px; letter-spacing: .18em; text-transform: uppercase; color: rgba(245,243,239,.38); transition: color .4s; }
.obra-riel span::after{ content: ""; width: 8px; height: 8px; border-radius: 50%; border: 1px solid currentColor; transition: background .4s, box-shadow .4s; }
.obra-riel span.on{ color: var(--gold-2); }
.obra-riel span.on::after{ background: var(--gold); box-shadow: 0 0 12px var(--gold); }
.obra-saltar{ position: absolute; left: 50%; bottom: 22px; transform: translateX(-50%); z-index: 4; font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--text-2); border-bottom: 1px solid rgba(245,243,239,.3); padding-bottom: 2px; }
.obra-saltar:hover{ color: var(--text); }

/* El contenido original de la portada aparece cuando la casa está terminada */
.obra .hero-inner, .obra .trust{ opacity: var(--fin, 0); transform: translateY(calc((1 - var(--fin, 0)) * 26px)); pointer-events: none; }
.obra.terminada .hero-inner, .obra.terminada .trust{ pointer-events: auto; }
.obra .hero-in, .obra .hero [data-split]{ animation: none !important; opacity: 1 !important; transform: none !important; }
.obra .hero-shade{ opacity: calc(.55 + var(--fin, 0) * .45); }
.obra .hero-tag{ position: absolute; top: calc(var(--nav-h, 76px) + 14px); left: var(--gutter, 24px); z-index: 3; font-size: 12px; letter-spacing: .2em; text-transform: uppercase; color: var(--text-2); opacity: calc(1 - var(--fin, 0)); }

@media (max-width: 760px){
  .obra{ height: 300vh; }
  .obra-riel{ top: auto; bottom: clamp(120px, 20vh, 180px); transform: none; gap: 10px; }
  .obra-riel span{ font-size: 10px; }
  .obra-etapas{ bottom: clamp(200px, 32vh, 280px); width: calc(100% - 2 * var(--gutter, 18px)); }
}
@media (prefers-reduced-motion: reduce){
  .obra{ height: auto; }
  .obra > .hero{ position: relative; height: auto; min-height: 100svh; }
  .obra .hero-inner, .obra .trust{ opacity: 1; transform: none; pointer-events: auto; }
  .capa-luz{ opacity: 1; } .obra-etapas, .obra-riel, .obra-saltar, .capa-plano, .capa-vidrio{ display: none; }
}

/* ===== Toca el vidrio ===== */
.vaho-sec{ padding: clamp(80px, 11vw, 140px) 0; }
.vaho-cabeza{ display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; flex-wrap: wrap; margin-bottom: 28px; }
.vaho-cabeza h2{ max-width: 16ch; }
.vaho-cabeza p{ max-width: 38ch; }
.vaho-marco{ position: relative; border-radius: 18px; overflow: hidden; aspect-ratio: 16/9; background: #0d0c0a; touch-action: pan-y; cursor: none; isolation: isolate; }
.vaho-marco img{ position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 60%; filter: brightness(.85); transition: filter 1.6s var(--ease, ease), transform 2s var(--ease, ease); transform: scale(1.03); }
.vaho-marco.claro img{ filter: brightness(1.05) saturate(1.08); transform: scale(1); }
.vaho-marco canvas{ position: absolute; inset: 0; width: 100%; height: 100%; transition: opacity 1.3s; }
.vaho-marco.claro canvas{ opacity: 0; }
.vaho-pista{ position: absolute; right: 16px; bottom: 16px; display: flex; align-items: center; gap: 10px; padding: 9px 14px; border-radius: 999px; background: rgba(17,16,14,.55); border: 1px solid rgba(245,243,239,.2); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); font-size: 13px; color: var(--text); transition: opacity .6s; }
.vaho-pista b{ color: var(--gold-2); font-variant-numeric: tabular-nums; min-width: 3.6ch; text-align: right; font-weight: 600; }
.vaho-marco.claro .vaho-pista{ opacity: 0; }
.vaho-final{ position: absolute; left: 22px; bottom: 20px; right: 22px; font-size: clamp(22px, 3vw, 38px); font-weight: 600; letter-spacing: -.02em; color: var(--text); text-shadow: 0 2px 24px rgba(0,0,0,.6); opacity: 0; transform: translateY(14px); transition: opacity 1s .5s, transform 1s .5s; }
.vaho-final em{ font-style: normal; color: var(--gold-2); }
.vaho-marco.claro .vaho-final{ opacity: 1; transform: none; }
.vaho-cursor{ position: absolute; left: 0; top: 0; width: 80px; height: 80px; margin: -40px 0 0 -40px; border-radius: 50%; border: 1px solid rgba(255,255,255,.8); display: grid; place-items: center; font-size: 10px; letter-spacing: .16em; text-transform: uppercase; color: #fff; pointer-events: none; opacity: 0; mix-blend-mode: difference; transition: opacity .3s; z-index: 2; }
.vaho-cursor.on{ opacity: 1; }
.vaho-marco.claro .vaho-cursor{ opacity: 0; }
@media (max-width: 760px){ .vaho-marco{ aspect-ratio: 4/5; cursor: auto; } .vaho-cursor{ display: none; } }
@media (prefers-reduced-motion: reduce){ .vaho-marco canvas, .vaho-pista{ display: none; } }

/* Las partículas originales ponen "position: relative" a todo lo de la portada; las capas de la obra deben flotar */
.obra .hero > .obra-reflejo, .obra .hero > .obra-brillo, .obra .hero > .obra-etapas,
.obra .hero > .obra-riel, .obra .hero > .obra-saltar, .obra .hero > .hero-tag { position: absolute !important; }
.obra .obra-riel, .obra .obra-saltar { opacity: calc(1 - var(--fin, 0)); }

/* Video real de la obra (reemplaza las capas de vidrio y luz hechas con código) */
.obra .hero-bg canvas.capa-video{ opacity: var(--video-o, 0); }
.obra .capa-vidrio{ display: none; }
.obra .capa-luz{ opacity: 0; }
@media (prefers-reduced-motion: reduce){ .obra .capa-luz{ opacity: 1; } .obra .hero-bg canvas.capa-video{ display: none; } }

/* Recorrido más largo (más suave) */
.obra{ height: 520vh; }
@media (max-width: 760px){ .obra{ height: 460vh; } }
/* Pausa al terminar: "Desliza para continuar" con 2 puntos (uno por deslizada) */
.obra .hero > .obra-continuar{ position: absolute !important; left: 50%; bottom: calc(26px + env(safe-area-inset-bottom, 0px)); transform: translate(-50%, 10px); z-index: 5;
  display: flex; align-items: center; gap: 10px; padding: 9px 16px; border-radius: 999px; background: rgba(17,16,14,.55); border: 1px solid rgba(227,197,103,.35);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--text);
  opacity: 0; pointer-events: none; transition: opacity .5s, transform .5s; }
.obra-continuar.on{ opacity: .55; transform: translate(-50%, 0); }
.obra-continuar.listo{ opacity: 1; }
.obra-continuar b{ display: flex; gap: 5px; }
.obra-continuar i{ width: 7px; height: 7px; border-radius: 50%; border: 1px solid var(--gold-2); transition: background .3s; }
.obra-continuar i.ok{ background: var(--gold); }
.obra-continuar em{ font-style: normal; color: var(--gold-2); animation: bajaSuave 1.4s ease-in-out infinite; }
@keyframes bajaSuave{ 0%,100%{ transform: translateY(0); } 50%{ transform: translateY(4px); } }
.obra.terminada .obra-saltar{ display: none; }
@media (prefers-reduced-motion: reduce){ .obra-continuar{ display: none !important; } }