/* Propuesta 5 · La obra completa
   Las franjas de letras implosionan en un núcleo de luz, del núcleo sale el plano,
   el edificio sube planta a planta a oscuras, se encienden las luces y acaba como «Del plano a la obra». */

/* ---------- Escena ---------- */
.propuesta-obra .fondo {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(62% 48% at 50% 40%, rgba(34, 86, 132, .30), rgba(34, 86, 132, 0) 72%),
    radial-gradient(120% 80% at 50% 118%, rgba(12, 38, 62, .55), rgba(12, 38, 62, 0) 62%),
    linear-gradient(180deg, #07101a 0%, #04080d 58%, #030508 100%);
}
/* primero, la retícula de fachada de las franjas… */
.fachada {
  position: absolute;
  inset: 0;
  opacity: 0;
  background-image:
    linear-gradient(90deg, rgba(143, 214, 255, .06) 1px, transparent 1px),
    linear-gradient(rgba(143, 214, 255, .045) 1px, transparent 1px);
  background-size: calc(100vw / 12) 100%, 100% 12vh;
  background-position: center top;
}
/* …que se convierte en la retícula del plano */
.rejilla {
  position: absolute;
  inset: 0;
  opacity: 0;
  background-image:
    linear-gradient(rgba(143, 214, 255, .085) 1px, transparent 1px),
    linear-gradient(90deg, rgba(143, 214, 255, .085) 1px, transparent 1px),
    linear-gradient(rgba(143, 214, 255, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(143, 214, 255, .035) 1px, transparent 1px);
  background-size: 160px 160px, 160px 160px, 32px 32px, 32px 32px;
  background-position: 50% 50%;
  -webkit-mask-image: radial-gradient(70% 66% at 50% 44%, #000 28%, transparent 86%);
  mask-image: radial-gradient(70% 66% at 50% 44%, #000 28%, transparent 86%);
}
.resplandor {
  position: absolute;
  left: 50%;
  top: 44%;
  width: 120vmin;
  height: 70vmin;
  transform: translate(-50%, -50%);
  background: radial-gradient(50% 50% at 50% 50%, rgba(70, 180, 255, .20), rgba(70, 180, 255, .06) 45%, rgba(70, 180, 255, 0) 72%);
  opacity: 0;
}
.vineta {
  position: absolute;
  inset: 0;
  background: radial-gradient(80% 70% at 50% 46%, rgba(0, 0, 0, 0) 42%, rgba(0, 0, 0, .5) 80%, rgba(0, 0, 0, .86) 100%);
}
.grano {
  position: absolute;
  inset: 0;
  opacity: .05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23g)'/%3E%3C/svg%3E");
}
.pa-en-marcha .fachada { animation: fachadaVaYViene 4.6s ease forwards; }
@keyframes fachadaVaYViene { 0% { opacity: 0; } 22% { opacity: 1; } 72% { opacity: 1; } 100% { opacity: 0; } }
.pa-en-marcha .rejilla { animation: rejillaEntra 1.4s var(--curva-salida) 3.3s forwards, rejillaRespira 10s ease-in-out 6s infinite; }
@keyframes rejillaEntra { from { opacity: 0; transform: scale(1.05); } to { opacity: 1; transform: none; } }
@keyframes rejillaRespira { 0%, 100% { opacity: 1; } 50% { opacity: .62; } }

/* lienzos a pantalla completa: franjas de letras y partículas */
.lienzo-franjas, .lienzo-particulas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  display: block;
}

/* núcleo de luz de la implosión (siempre redondo): lo crea obra.js y lo coloca en el centro del logo */
.luz-nucleo { position: fixed; inset: 0; z-index: 1; overflow: hidden; pointer-events: none; }
.nucleo, .onda {
  position: absolute;
  left: 50%;
  top: 50%;
  border-radius: 50%;
  opacity: 0;
  mix-blend-mode: screen;
  pointer-events: none;
}
.nucleo {
  width: calc(var(--ancho-logo) * .74);
  height: calc(var(--ancho-logo) * .74);
  transform: translate(-50%, -50%) scale(.3);
  background: radial-gradient(closest-side, rgba(255, 255, 255, .96) 0%, rgba(224, 245, 255, .82) 5%, rgba(143, 214, 255, .44) 14%,
    rgba(70, 180, 255, .17) 34%, rgba(70, 180, 255, .05) 60%, rgba(70, 180, 255, 0) 100%);
}
.onda {
  width: calc(var(--ancho-logo) * 1.5);
  height: calc(var(--ancho-logo) * 1.5);
  transform: translate(-50%, -50%) scale(.06);
  border: 1.2px solid rgba(196, 234, 255, .9);
  box-shadow: 0 0 14px 2px rgba(70, 180, 255, .55), inset 0 0 14px 2px rgba(70, 180, 255, .4);
}

/* ---------- Logo: lienzo con la noche y las luces, que se construye de abajo arriba ---------- */
.propuesta-obra .logo-caja > canvas { height: auto; bottom: auto; aspect-ratio: 774 / 560; }
.propuesta-obra .lienzo {
  -webkit-mask-image: linear-gradient(to top, #000 calc(var(--obra, 0%) - 1.2%), rgba(0, 0, 0, 0) calc(var(--obra, 0%) + 1.2%));
  mask-image: linear-gradient(to top, #000 calc(var(--obra, 0%) - 1.2%), rgba(0, 0, 0, 0) calc(var(--obra, 0%) + 1.2%));
}
.propuesta-obra .lienzo-brillo { filter: blur(10px) saturate(1.4); mix-blend-mode: screen; opacity: .75; }
.js .logo-quieto { visibility: hidden; }
.pa-quieto .logo-quieto { visibility: visible; }
.pa-quieto .propuesta-obra .logo-caja > canvas, .no-js .propuesta-obra .logo-caja > canvas { display: none; }

.linea-obra {
  position: absolute;
  left: 3%;
  right: 3%;
  bottom: var(--obra, 0%);
  height: 2px;
  margin-bottom: -1px;
  border-radius: 2px;
  background: linear-gradient(90deg, rgba(143, 214, 255, 0), #d9f2ff 18%, #ffffff 50%, #d9f2ff 82%, rgba(143, 214, 255, 0));
  box-shadow: 0 0 10px 2px rgba(70, 180, 255, .75), 0 0 34px 6px rgba(70, 180, 255, .3);
  opacity: 0;
  pointer-events: none;
}

.brillo-metal {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  opacity: 0;
  mix-blend-mode: screen;
  -webkit-mask: url("comun/logo/logo-pa-mascara.png") center / 100% 100% no-repeat;
  mask: url("comun/logo/logo-pa-mascara.png") center / 100% 100% no-repeat;
}
.brillo-metal::before {
  content: "";
  position: absolute;
  top: -20%;
  bottom: -20%;
  left: 0;
  width: 30%;
  background: linear-gradient(100deg, rgba(230, 245, 255, 0) 0%, rgba(230, 245, 255, .5) 48%, rgba(190, 230, 255, .2) 62%, rgba(230, 245, 255, 0) 100%);
  transform: translateX(-130%) skewX(-14deg);
}
.pa-en-marcha .brillo-metal { opacity: 1; }
.pa-en-marcha .brillo-metal::before { animation: barridoMetal 9s ease-in-out 12.4s infinite; }
@keyframes barridoMetal {
  0% { transform: translateX(-130%) skewX(-14deg); }
  38%, 100% { transform: translateX(400%) skewX(-14deg); }
}

/* ---------- Plano (SVG por encima del logo) ---------- */
.plano {
  overflow: visible;
  pointer-events: none;
  filter: drop-shadow(0 0 2.5px rgba(70, 180, 255, .7));
}
.plano .trazo { fill: none; stroke: #9ddcff; stroke-width: calc(1.15px / var(--escala, 1)); stroke-linecap: round; stroke-linejoin: round; }
.plano .eje { stroke: rgba(143, 214, 255, .5); stroke-width: calc(1px / var(--escala, 1)); }
.plano .cota-linea { stroke: #9ddcff; stroke-width: calc(1.1px / var(--escala, 1)); }
.plano .burbuja { fill: rgba(4, 10, 16, .85); stroke: #9ddcff; stroke-width: calc(1.1px / var(--escala, 1)); }
.plano text {
  font-family: var(--sans);
  font-weight: 600;
  font-size: calc(11px / var(--escala, 1));
  letter-spacing: .08em;
  fill: #b9e6ff;
  text-anchor: middle;
  dominant-baseline: central;
}
.plano .pista { fill: none; stroke: rgba(157, 220, 255, .55); stroke-width: calc(1.1px / var(--escala, 1)); stroke-linejoin: round; }
.plano .corriente { fill: none; stroke: #f2fbff; stroke-width: calc(2.4px / var(--escala, 1)); stroke-linecap: round; stroke-linejoin: round; opacity: 0; }
.plano .nodo { fill: none; stroke: #e6f7ff; stroke-width: calc(2px / var(--escala, 1)); opacity: 0; transform-box: fill-box; transform-origin: center; }
.plano .llama { fill: none; stroke: #ffffff; stroke-width: calc(3px / var(--escala, 1)); stroke-linecap: round; opacity: 0; }
.plano .cotas, .plano .alambre { opacity: 0; }

/* ---------- Textos (los de «Del plano a la obra», más tarde) ---------- */
.propuesta-obra .nombre .letra { position: relative; opacity: 0; transform: translateY(-.95em); }
.propuesta-obra .nombre .letra::after {
  content: "";
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: -.32em;
  height: 1px;
  background: #9ddcff;
  box-shadow: 0 0 6px #46b4ff;
  opacity: 0;
}
.pa-en-marcha .propuesta-obra .nombre .letra {
  animation: encajar .62s var(--curva-muelle) forwards;
  animation-delay: calc(8900ms + var(--i) * 34ms);
}
.pa-en-marcha .propuesta-obra .nombre .letra::after {
  animation: chispa .55s ease-out forwards;
  animation-delay: calc(9180ms + var(--i) * 34ms);
}
@keyframes encajar {
  0% { opacity: 0; transform: translateY(-.95em); }
  55% { opacity: 1; }
  100% { opacity: 1; transform: none; }
}
@keyframes chispa { 0% { opacity: 0; } 25% { opacity: 1; } 100% { opacity: 0; } }

.cota-nombre {
  display: block;
  position: relative;
  width: min(520px, 78vw);
  height: 9px;
  border-left: 1px solid rgba(157, 220, 255, .75);
  border-right: 1px solid rgba(157, 220, 255, .75);
  transform: scaleX(0);
  opacity: .9;
}
.cota-nombre::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 4px;
  height: 1px;
  background: rgba(157, 220, 255, .75);
  box-shadow: 0 0 6px rgba(70, 180, 255, .6);
}
.pa-en-marcha .cota-nombre { animation: cotaAbre .8s var(--curva-salida) 9.8s forwards; }
@keyframes cotaAbre { to { transform: scaleX(1); } }

.escaneo-caja { position: relative; display: inline-block; max-width: 100%; }
.propuesta-obra .proximamente { clip-path: inset(0 100% 0 0); }
.barra-escaneo {
  position: absolute;
  top: -10%;
  bottom: -10%;
  left: 0;
  width: 2px;
  border-radius: 2px;
  background: #e8f8ff;
  box-shadow: 0 0 12px 3px rgba(70, 180, 255, .8), 0 0 40px 8px rgba(70, 180, 255, .3);
  opacity: 0;
  pointer-events: none;
}
.pa-en-marcha .propuesta-obra .proximamente.escaneando { animation: escanear 1.05s cubic-bezier(.62, .04, .32, 1) forwards; }
.pa-en-marcha .barra-escaneo.escaneando { animation: barraEscaneo 1.05s cubic-bezier(.62, .04, .32, 1) forwards; }
@keyframes escanear { from { clip-path: inset(0 100% 0 0); } to { clip-path: inset(0 0 0 0); } }
@keyframes barraEscaneo {
  0% { left: 0; opacity: 0; }
  8% { opacity: 1; }
  88% { opacity: 1; }
  100% { left: 100%; opacity: 0; }
}

.propuesta-obra .frase { opacity: 0; transform: translateY(10px); }
.pa-en-marcha .propuesta-obra .frase { animation: subir 1s var(--curva-salida) 10.9s forwards; }
@keyframes subir { to { opacity: 1; transform: none; } }

.propuesta-obra .pie { opacity: 0; }
.pa-en-marcha .propuesta-obra .pie { animation: aparecer .9s ease 11.3s forwards; }
@keyframes aparecer { to { opacity: 1; } }

@media (max-width: 600px) {
  .rejilla { background-size: 96px 96px, 96px 96px, 24px 24px, 24px 24px; }
  .fachada { background-size: calc(100vw / 6) 100%, 100% 10vh; }
  .plano .lateral { display: none; }
}

/* ---------- Sin movimiento y sin JavaScript: composición final ---------- */
.pa-quieto .lienzo-franjas, .no-js .lienzo-franjas,
.pa-quieto .lienzo-particulas, .no-js .lienzo-particulas,
.pa-quieto .luz-nucleo, .no-js .luz-nucleo,
.pa-quieto .plano, .no-js .plano,
.pa-quieto .linea-obra, .no-js .linea-obra,
.pa-quieto .barra-escaneo, .no-js .barra-escaneo { display: none; }
.pa-quieto .fachada, .no-js .fachada { animation: none; opacity: 0; }
.pa-quieto .rejilla, .no-js .rejilla { opacity: .7; animation: none; }
.pa-quieto .propuesta-obra .nombre .letra { opacity: 1; transform: none; animation: none; }
.pa-quieto .propuesta-obra .nombre .letra::after { display: none; }
.pa-quieto .cota-nombre, .no-js .cota-nombre { transform: none; animation: none; }
.pa-quieto .propuesta-obra .proximamente, .no-js .propuesta-obra .proximamente { clip-path: none; animation: none; }
.pa-quieto .propuesta-obra .frase, .no-js .propuesta-obra .frase { opacity: 1; transform: none; animation: none; }
.pa-quieto .propuesta-obra .pie { opacity: 1; animation: none; }
.pa-quieto .brillo-metal::before { animation: none; }