/* ============================================================
   Comparador DUO — Modelo 3D ⇄ Realidad
   Una sola manija arrastrable sobre dos capas 4:3 alineadas.
   Independiente del comparador de 3 etapas del home.
   Usa los tokens de CGK.
   ============================================================ */

.compare-duo {
  margin-top: clamp(18px, 2.5vw, 30px);
}

.compare-duo__viewport {
  --x: 50%;                    /* separador Modelo 3D | Realidad */
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--bg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--hairline-hi);
  touch-action: none;          /* el arrastre no dispara scroll */
  user-select: none;
  cursor: ew-resize;
}

.compare-duo__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;           /* ambas 4:3 con el mismo encuadre → alinean */
  object-position: center;
  display: block;
  -webkit-user-drag: none;
  user-select: none;
  pointer-events: none;
}

/* Capa base (abajo): Realidad. Capa superior: Render recortado a la izquierda. */
.compare-duo__layer--render {
  position: absolute;
  inset: 0;
  z-index: 2;
  clip-path: inset(0 calc(100% - var(--x)) 0 0);
}
.compare-duo__img--real { z-index: 1; }

/* ---- Etiquetas ---- */
.compare-duo__tag {
  position: absolute;
  top: clamp(10px, 1.6vw, 18px);
  z-index: 5;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-tech);
  text-transform: uppercase;
  color: var(--text-hi);
  background: rgba(11, 13, 15, 0.58);
  border: 1px solid var(--hairline-hi);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  padding: 6px 11px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  transition: opacity var(--dur-fast) var(--ease-out);
}
.compare-duo__tag--render { left: clamp(10px, 1.6vw, 18px); }
.compare-duo__tag--real   { right: clamp(10px, 1.6vw, 18px); }
.compare-duo__tag b { font-weight: 700; }
.compare-duo__tag--render b { color: var(--cat-yellow); }
.compare-duo__tag--real   b { color: var(--signal); }

/* ---- Manija arrastrable ---- */
.compare-duo__handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--x);
  width: 40px;
  transform: translateX(-50%);
  background: transparent;
  border: 0;
  padding: 0;
  margin: 0;
  z-index: 6;
  cursor: ew-resize;
  touch-action: none;
}
.compare-duo__handle::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  transform: translateX(-50%);
  background: var(--cat-yellow);
  box-shadow: 0 0 0 1px rgba(11, 13, 15, 0.4), 0 0 18px rgba(255, 205, 17, 0.35);
}
.compare-duo__grip {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 48px;
  height: 48px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: var(--cat-yellow);
  color: var(--graphite-950);
  display: grid;
  place-items: center;
  font-size: 17px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.6);
  transition: transform var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}
.compare-duo__handle:hover .compare-duo__grip { transform: translate(-50%, -50%) scale(1.07); background: var(--cat-yellow-hi); }
.compare-duo__handle:focus-visible { outline: none; }
.compare-duo__handle:focus-visible .compare-duo__grip { outline: 3px solid var(--graphite-950); outline-offset: 3px; box-shadow: 0 0 0 6px var(--paper); }

/* ---- Hint que desaparece al interactuar ---- */
.compare-duo__hint {
  position: absolute;
  left: 50%;
  bottom: clamp(12px, 2vw, 20px);
  transform: translateX(-50%);
  z-index: 5;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--text-md);
  background: rgba(11, 13, 15, 0.5);
  border: 1px solid var(--hairline);
  padding: 6px 12px;
  border-radius: 999px;
  pointer-events: none;
  transition: opacity var(--dur-mid) var(--ease-out);
}
.compare-duo.is-touched .compare-duo__hint { opacity: 0; }

@media (max-width: 680px) {
  .compare-duo__grip { width: 40px; height: 40px; font-size: 15px; }
  .compare-duo__tag { font-size: 10px; padding: 4px 8px; }
}