/* ============================================================
   "Así se ve tener el control" · Scroll narrativo estilo Apple
   Escritorio: el teléfono queda fijo y la pantalla cambia según el
   bloque de texto que llega al centro. Móvil: pantalla + texto apilados.
   ============================================================ */

.platform-story .story {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 80px;
  max-width: 1040px;
  margin: 24px auto 0;
}

/* ─── Teléfono fijo ─────────────────────────────────────────── */
.platform-story .story-device {
  position: sticky;
  top: max(100px, calc(50vh - 320px + 40px));
  height: min(640px, calc(100vh - 140px));
  align-self: start;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}
.platform-story .story-screens {
  position: relative;
  flex: 1;
  width: 100%;
  min-height: 0;
  /* El contenedor fijo crea su propio contexto: le damos el fondo de la sección
     para que el "multiply" de las capturas se funda con él y no deje un recuadro blanco. */
  background: #f3f8fc;
  /* La imagen crece dentro de su marco (overflow) para no invadir el texto de arriba */
  overflow: hidden;
}
.platform-story .story-screen {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  mix-blend-mode: multiply;
  scale: 1.12;
  opacity: 0;
  transform: translateY(14px) scale(.985);
  transition: opacity .45s var(--ease-out), transform .6s var(--ease-out);
}
.platform-story .story-screen.is-active { opacity: 1; transform: none; }

/* Indicador de avance: la barra activa se alarga */
.platform-story .story-progress { display: flex; gap: 6px; }
.platform-story .story-progress span {
  width: 8px; height: 4px;
  border-radius: 2px;
  background: #c6d9e8;
  transition: width .35s var(--ease-out), background-color .35s var(--ease-out);
}
.platform-story .story-progress span.is-active { width: 28px; background: var(--blue); }

/* ─── Bloques de texto ──────────────────────────────────────── */
.platform-story .story-step {
  min-height: 78vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  opacity: .22;
  transition: opacity .45s var(--ease-out);
}
.platform-story .story-step.is-active { opacity: 1; }
.platform-story .story-step:first-child { min-height: 64vh; justify-content: flex-start; padding-top: 60px; }
.platform-story .story-step:last-child { min-height: 70vh; }
.platform-story .story-step h3 { margin-top: 18px; }
.platform-story .story-step-image { display: none; }

.platform-story .demo-caption { margin-top: 0; padding-bottom: 12px; }

@media (max-width: 1050px) {
  .platform-story .story { gap: 40px; }
}

/* ─── Móvil: el mismo scroll narrativo ─────────────────────────
   El teléfono queda fijo arriba (bajo la barra de promociones) y los
   textos pasan por debajo; el que llega a la zona de lectura se activa. */
@media (max-width: 720px) {
  .platform-story .story { display: block; margin-top: 4px; }
  .platform-story .story-device {
    top: var(--story-top, 38px);
    z-index: 2;
    height: 46svh;
    gap: 10px;
    padding: 10px 0 26px;
    /* Desvanecido inferior: el texto "entra" por debajo del teléfono */
    background: linear-gradient(to bottom, #f3f8fc 0, #f3f8fc calc(100% - 26px), rgba(243, 248, 252, 0) 100%);
  }
  .platform-story .story-screen { scale: 1.08; }
  .platform-story .story-steps { position: relative; z-index: 1; }
  .platform-story .story-step,
  .platform-story .story-step:first-child,
  .platform-story .story-step:last-child {
    min-height: 0;
    justify-content: flex-start;
    padding: 22px 0 64px;
    opacity: .2;
    transform: translateY(8px);
    transition: opacity .4s var(--ease-out), transform .5s var(--ease-out);
  }
  .platform-story .story-step:last-child { padding-bottom: 24px; }
  .platform-story .story-step.is-active { opacity: 1; transform: none; }
  .platform-story .story-step h3 { margin-top: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  .platform-story .story-screen,
  .platform-story .story-step,
  .platform-story .story-progress span { transition: none; }
  .platform-story .story-screen, .platform-story .story-step { transform: none; }
}