/* RÊVERIE-inspired Reality Configuration transition.
   This is a route-transition layer, not a second scene controller. The native
   Tesseract still owns selection; this layer visualizes configuration + travel. */

.reality-configurator {
  position: fixed;
  inset: 0;
  z-index: 14000;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: rgba(3,2,7,0);
  opacity: 0;
  pointer-events: none;
  perspective: 1100px;
  transition: opacity .18s ease, background .55s ease;
}
.reality-configurator[aria-hidden='false'] {
  opacity: 1;
  background: rgba(3,2,7,.14);
  pointer-events: auto;
}
.reality-configurator__field {
  position: relative;
  width: min(46vw, 31rem);
  aspect-ratio: 1;
  transform-style: preserve-3d;
  transform: rotateX(58deg) rotateZ(45deg) scale(.72);
  opacity: .08;
  transition: opacity .35s ease, transform .85s cubic-bezier(.2,.8,.18,1);
}
.reality-configurator[data-phase='arming'] .reality-configurator__field {
  opacity: .82;
  transform: rotateX(58deg) rotateZ(45deg) scale(1);
}
.reality-configurator[data-phase='twist'] .reality-configurator__field {
  opacity: 1;
  transform: rotateX(66deg) rotateY(-28deg) rotateZ(134deg) scale(1.1);
}
.reality-configurator[data-phase='transfer'] .reality-configurator__field {
  opacity: .2;
  transform: rotateX(76deg) rotateY(-90deg) rotateZ(220deg) scale(3.1);
}

.reality-configurator__plane {
  position: absolute;
  inset: 8%;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: .35rem;
  padding: .35rem;
  border: 1px solid rgba(245,214,154,.26);
  background: rgba(8,5,13,.16);
  box-shadow: inset 0 0 3rem rgba(172,87,150,.08), 0 0 2.5rem rgba(0,0,0,.3);
  transform-style: preserve-3d;
  transition: transform .72s cubic-bezier(.16,.85,.25,1), border-color .4s ease;
}
.reality-configurator__plane:nth-child(1){transform:translateZ(-4.7rem)}
.reality-configurator__plane:nth-child(2){transform:translateZ(0)}
.reality-configurator__plane:nth-child(3){transform:translateZ(4.7rem)}
.reality-configurator[data-phase='twist'] .reality-configurator__plane:nth-child(1){transform:translateZ(-4.7rem) rotateZ(-90deg)}
.reality-configurator[data-phase='twist'] .reality-configurator__plane:nth-child(2){transform:translateZ(0) rotateZ(90deg)}
.reality-configurator[data-phase='twist'] .reality-configurator__plane:nth-child(3){transform:translateZ(4.7rem) rotateZ(-180deg)}
.reality-configurator[data-phase='transfer'] .reality-configurator__plane:nth-child(1){transform:translateZ(-11rem) rotateZ(-180deg)}
.reality-configurator[data-phase='transfer'] .reality-configurator__plane:nth-child(2){transform:translateZ(0) rotateZ(180deg)}
.reality-configurator[data-phase='transfer'] .reality-configurator__plane:nth-child(3){transform:translateZ(11rem) rotateZ(-270deg)}

.reality-configurator__cell {
  border: 1px solid color-mix(in srgb, var(--config-accent, #f1c76a) 52%, transparent);
  background:
    linear-gradient(145deg, color-mix(in srgb, var(--config-accent, #f1c76a) 12%, transparent), transparent 58%),
    rgba(255,255,255,.012);
  box-shadow: inset 0 0 1.25rem color-mix(in srgb, var(--config-accent, #f1c76a) 7%, transparent);
}

/* Impossible-frame silhouette: deliberately illusionistic, not presented as
   a literal scientific model of 4D space. */
.reality-configurator__impossible {
  position: absolute;
  inset: 15%;
  border: clamp(.22rem,.65vw,.52rem) solid rgba(244,214,160,.6);
  transform: translateZ(8.5rem) rotate(45deg);
  box-shadow: 0 0 2.4rem color-mix(in srgb, var(--config-accent, #f1c76a) 20%, transparent);
  opacity: .42;
}
.reality-configurator__impossible::before,
.reality-configurator__impossible::after {
  content: '';
  position: absolute;
  width: 62%;
  height: 62%;
  border: inherit;
}
.reality-configurator__impossible::before { left: -30%; top: 18%; border-right-color: transparent; }
.reality-configurator__impossible::after { right: -30%; bottom: 18%; border-left-color: transparent; }

.reality-configurator__copy {
  position: absolute;
  left: 50%;
  bottom: max(5vh, 2.2rem);
  width: min(42rem, calc(100vw - 2rem));
  transform: translateX(-50%);
  text-align: center;
  color: #f6ead3;
  text-shadow: 0 .25rem 1.1rem rgba(0,0,0,.8);
}
.reality-configurator__copy small {
  display: block;
  margin-bottom: .45rem;
  color: color-mix(in srgb, var(--config-accent, #f1c76a) 72%, #f6ead3);
  font: 760 .58rem/1.2 ui-sans-serif,system-ui,sans-serif;
  letter-spacing: .22em;
  text-transform: uppercase;
}
.reality-configurator__copy strong {
  display: block;
  font: 560 clamp(1.75rem,4vw,3.5rem)/1 Georgia,'Times New Roman',serif;
}
.reality-configurator__copy span {
  display: block;
  margin-top: .5rem;
  color: rgba(246,234,211,.58);
  font: 620 .7rem/1.4 ui-sans-serif,system-ui,sans-serif;
  letter-spacing: .09em;
}
.reality-configurator__progress {
  position: absolute;
  left: 10%; right: 10%; bottom: 0;
  height: 1px;
  background: rgba(255,255,255,.08);
}
.reality-configurator__progress i {
  display: block;
  width: 0;
  height: 100%;
  background: var(--config-accent, #f1c76a);
  box-shadow: 0 0 1rem var(--config-accent, #f1c76a);
  transition: width .85s cubic-bezier(.2,.8,.2,1);
}
.reality-configurator[data-phase='twist'] .reality-configurator__progress i { width: 64%; }
.reality-configurator[data-phase='transfer'] .reality-configurator__progress i { width: 100%; transition-duration: .3s; }

/* The real Tesseract canvas participates in the illusion without surrendering
   ownership of its Three.js scene. */
html[data-reality-configuring='true'] .tesseract-page .tn-scene-shell canvas {
  transform-origin: 50% 50%;
  filter: saturate(1.2) contrast(1.06) brightness(1.08);
  animation: equilibriumRealityTwist .95s cubic-bezier(.2,.78,.2,1) both;
}
@keyframes equilibriumRealityTwist {
  0%   { transform: scale(1) rotate(0deg); }
  42%  { transform: scale(.92) rotate(-4deg); }
  72%  { transform: scale(1.08) rotate(7deg); }
  100% { transform: scale(1.32) rotate(18deg); filter: blur(5px) saturate(1.35) brightness(1.35); }
}

@media (max-width: 720px) {
  .reality-configurator__field { width: min(78vw, 25rem); }
  .reality-configurator__plane:nth-child(1){transform:translateZ(-3.2rem)}
  .reality-configurator__plane:nth-child(3){transform:translateZ(3.2rem)}
  .reality-configurator[data-phase='twist'] .reality-configurator__plane:nth-child(1){transform:translateZ(-3.2rem) rotateZ(-90deg)}
  .reality-configurator[data-phase='twist'] .reality-configurator__plane:nth-child(3){transform:translateZ(3.2rem) rotateZ(-180deg)}
}

@media (prefers-reduced-motion: reduce) {
  .reality-configurator__field,
  .reality-configurator__plane,
  .reality-configurator__progress i { transition-duration: .01ms !important; }
  html[data-reality-configuring='true'] .tesseract-page .tn-scene-shell canvas { animation: none !important; }
}