/* =========================================================
   Scene 4bis — ¿Qué? ¿Dónde? ¿Cómo?
   Floating elements (inside .scene--4, outside .s4-strip)
   ========================================================= */

/* ── Base: items hidden by default ──────────────────────── */
.s4b-item {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  z-index: 20;
  will-change: transform, opacity;
}

/* ── Floater: wraps image/video + label ─────────────────── */
.s4b-floater {
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* ── Sizes ───────────────────────────────────────────────── */
#s4bDocs     .s4b-floater img   {
  width: 360px;
  height: auto;
  filter: drop-shadow(0 24px 56px rgba(0,0,0,0.28));
}
#s4bPC       .s4b-floater video {
  width: 360px;
  height: auto;
  max-height: 500px;
  object-fit: contain;
  display: block;
  /* Fuerza el video al mismo layer GPU que la animación del floater
     para eliminar los "saltitos" de sincronización de frames */
  transform: translateZ(0);
  backface-visibility: hidden;
  will-change: transform;
}
#s4bQuestion .s4b-floater img   {
  width: 240px;
  height: auto;
  filter: drop-shadow(0 20px 48px rgba(0,0,0,0.20));
}

/* ── Labels ──────────────────────────────────────────────── */
.s4b-label {
  font-family: 'Inter', sans-serif;
  font-size: 72px;
  font-weight: 800;
  color: #1a1410;
  margin-top: 28px;
  text-align: center;
  letter-spacing: -2px;
  white-space: nowrap;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 500ms ease, transform 500ms ease;
}
.s4b-label.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Positions ───────────────────────────────────────────── */

/* Docs — centrado horizontal (360px → left=780) y vertical
   (elemento 490px → top=(1080-490)/2=295) */
#s4bDocs {
  left: 780px;
  top: 295px;
  transform: translateX(-2800px);
}

/* PC — costado izquierdo, ajustado 2% más a la izquierda */
#s4bPC {
  left: 209px;
  top: 295px;
  transform: translateX(-1900px);
}

/* Interrogación — 5% más a la derecha y 5% más abajo */
#s4bQuestion {
  left: 1418px;
  top: 349px;
  transform: translateX(1900px);
}

/* ── Entry animations ────────────────────────────────────── */
#s4bDocs.is-entering {
  animation: s4bDocsIn 950ms cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}
@keyframes s4bDocsIn {
  from { opacity: 0; transform: translateX(-2800px); }
  to   { opacity: 1; transform: translateX(0); }
}

#s4bPC.is-entering {
  animation: s4bPCIn 950ms cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}
@keyframes s4bPCIn {
  from { opacity: 0; transform: translateX(-1900px); }
  to   { opacity: 1; transform: translateX(0); }
}

#s4bQuestion.is-entering {
  animation: s4bQIn 950ms cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}
@keyframes s4bQIn {
  from { opacity: 0; transform: translateX(1900px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ── Float animations — ciclos más largos y movimiento más suave ────── */
#s4bDocs     .s4b-floater { animation: s4bFloat1 7.5s ease-in-out infinite; }
#s4bPC       .s4b-floater { animation: s4bFloat2 6.8s ease-in-out 0.8s infinite; }
#s4bQuestion .s4b-floater { animation: s4bFloat3 8.5s ease-in-out 1.5s infinite; }

@keyframes s4bFloat1 {
  0%   { transform: translate(  0px,   0px) rotate( 0.00deg); }
  25%  { transform: translate(  5px, -10px) rotate( 0.35deg); }
  50%  { transform: translate( -4px, -16px) rotate(-0.25deg); }
  75%  { transform: translate(  7px,  -6px) rotate( 0.20deg); }
  100% { transform: translate(  0px,   0px) rotate( 0.00deg); }
}
@keyframes s4bFloat2 {
  0%   { transform: translate(  0px,   0px) rotate( 0.00deg); }
  25%  { transform: translate( -6px, -12px) rotate(-0.40deg); }
  50%  { transform: translate(  4px, -18px) rotate( 0.28deg); }
  75%  { transform: translate( -3px,  -8px) rotate(-0.18deg); }
  100% { transform: translate(  0px,   0px) rotate( 0.00deg); }
}
@keyframes s4bFloat3 {
  0%   { transform: translate(  0px,   0px) rotate( 0.00deg); }
  25%  { transform: translate(  6px, -13px) rotate( 0.45deg); }
  50%  { transform: translate( -5px, -20px) rotate(-0.32deg); }
  75%  { transform: translate(  4px,  -7px) rotate( 0.15deg); }
  100% { transform: translate(  0px,   0px) rotate( 0.00deg); }
}