.references__inner { max-width: none; }
.references__head {
  max-width: 1160px;
  margin: 0 auto var(--space-md);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-md);
  flex-wrap: wrap;
}
.references__head h2 { font-size: clamp(2.2rem, 5vw, 3.2rem); }
.references__intro { max-width: 52ch; margin: 0; }
.references .scene-foot { max-width: 1160px; margin-left: auto; margin-right: auto; }

.surprise-btn {
  appearance: none;
  background: rgba(255, 255, 255, 0.7);
  border: 1.5px dashed rgba(10, 70, 255, 0.45);
  color: var(--color-accent);
  font-weight: var(--fw-medium);
  font-size: 1rem;
  padding: 13px 20px;
  border-radius: var(--radius-md);
}
.surprise-btn:hover { background: #fff; border-style: solid; }
.surprise-btn:disabled { cursor: default; opacity: 0.6; }

.carousel { position: relative; display: flex; align-items: center; gap: var(--space-sm); }

.carousel__track {
  display: flex;
  gap: var(--space-md);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: var(--space-md) 4px;
  scrollbar-width: none;
}
.carousel__track::-webkit-scrollbar { display: none; }

.ref-card {
  position: relative;
  flex: 0 0 clamp(220px, min(22vw, 36vh), 340px);
  aspect-ratio: 4 / 5;
  scroll-snap-align: start;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--color-ink-black);
  box-shadow: var(--shadow-card);
  cursor: pointer;
  transition: box-shadow var(--motion-fast), outline-color 300ms ease;
  outline: 3px solid transparent;
  outline-offset: 4px;
}
.ref-card:hover, .ref-card:focus { box-shadow: var(--shadow-card-hover); z-index: 1; }
.ref-card.is-picked { outline-color: var(--color-sky-blue); }
/* sin JS de inclinación (táctil / movimiento reducido) mantenemos el salto clásico */
.carousel__track.is-native .ref-card:hover { transform: translateY(-4px); }

.ref-card__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--motion-slow), opacity var(--motion-fast);
}
.ref-card:hover .ref-card__img, .ref-card:focus .ref-card__img { transform: scale(1.08); opacity: 0.55; }

.ref-card__glare {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background: radial-gradient(circle at var(--gx, 50%) var(--gy, 0%), rgba(255, 255, 255, 0.38) 0%, rgba(255, 255, 255, 0) 55%);
  mix-blend-mode: overlay;
  opacity: 0;
  transition: opacity 300ms ease;
}
.ref-card:hover .ref-card__glare { opacity: 1; }

.ref-card__platform {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  z-index: 1;
  width: 84px;
  height: 40px;
  object-fit: contain;
  object-position: right center;
  filter: drop-shadow(0 1px 3px rgba(11, 11, 13, 0.7));
}

.ref-card--cobalt { background: linear-gradient(135deg, var(--color-deep-cobalt), var(--color-sky-blue)); }
.ref-card--sky { background: linear-gradient(135deg, var(--color-sky-blue), var(--color-cloud-white)); }
.ref-card--ink { background: linear-gradient(135deg, var(--color-ink-black), #33363d); }
.ref-card--gray { background: linear-gradient(135deg, var(--color-soft-gray), #ffffff); }

.ref-card__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-md);
  color: #fff;
  background: linear-gradient(180deg, rgba(11, 11, 13, 0) 40%, rgba(11, 11, 13, 0.55) 70%, rgba(11, 11, 13, 0.92) 100%);
  transition: background var(--motion-fast);
}
.ref-card:hover .ref-card__overlay, .ref-card:focus .ref-card__overlay {
  background: linear-gradient(180deg, rgba(11, 11, 13, 0.05) 0%, rgba(11, 11, 13, 0.6) 45%, rgba(11, 11, 13, 0.95) 100%);
}

.ref-card__category { font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-sky-blue); font-weight: var(--fw-medium); }
.ref-card__title { font-size: 1.25rem; margin: 6px 0 0; color: #fff; }

.ref-card__desc, .ref-card__credit {
  color: rgba(255, 255, 255, 0.9);
  opacity: 0;
  max-height: 0;
  overflow: hidden;
  transition: opacity var(--motion-fast), max-height var(--motion-fast), margin var(--motion-fast);
}
.ref-card__desc { font-size: 0.85rem; margin: 0; }
.ref-card__credit { font-size: 0.68rem; color: rgba(255, 255, 255, 0.65); margin: 0; }

.ref-card:hover .ref-card__desc, .ref-card:focus .ref-card__desc {
  opacity: 1;
  max-height: 100px;
  margin: 8px 0 4px;
}
.ref-card:hover .ref-card__credit, .ref-card:focus .ref-card__credit {
  opacity: 1;
  max-height: 40px;
  margin-top: 6px;
}

.carousel__arrow {
  border: none;
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
  width: 44px; height: 44px;
  border-radius: 50%;
  font-size: 1.4rem;
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  margin: 0 var(--space-xs);
}
.carousel__arrow:hover { background: var(--color-accent); color: #fff; }
.carousel__arrow[hidden] { display: none; }

@media (max-width: 640px) {
  .carousel__arrow { display: none; }
  .ref-card { flex-basis: 72vw; }
}