/* ===================================================================
   Carousel - Accessible Image Carousel with Controls
   =================================================================== */

.carousel {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background-color: var(--color-background-elevated);
}

/* Carousel Track - Contains Slides */
.carousel__track {
  display: flex;
  transition: transform var(--transition-slow) ease;
}

/* Individual Slide */
.carousel__slide {
  flex: 0 0 100%;
  position: relative;
}

/* Hide inactive slides from screen readers */
.carousel__slide[aria-hidden="true"] {
  visibility: hidden;
}

/* Carousel Image */
.carousel__image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-lg);
}

/* Floating shadow effect using pseudo-element (not direct box-shadow animation) */
.carousel__slide::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 40px rgba(139, 92, 246, 0.3);
  opacity: 0.5;
  transition: opacity var(--transition-base) ease;
  pointer-events: none;
  z-index: 1;
}

.carousel__slide:hover::after {
  opacity: 1;
}

/* Navigation Controls - Previous/Next Arrows */
.carousel__control {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;

  background: var(--color-background-glass);
  backdrop-filter: var(--blur-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);

  width: 3rem;
  height: 3rem;

  display: flex;
  align-items: center;
  justify-content: center;

  font-size: var(--font-size-2xl);
  color: var(--color-text-primary);

  cursor: pointer;
  transition: background-color var(--transition-fast) ease,
              border-color var(--transition-fast) ease;
}

.carousel__control:hover {
  background-color: var(--color-background-elevated);
  border-color: var(--color-border-accent);
}

.carousel__control:focus-visible {
  outline: 2px solid var(--color-accent-primary);
  outline-offset: 2px;
}

/* Hide arrows on mobile (touch swipe implied) */
.carousel__control--prev,
.carousel__control--next {
  display: none;
}

@media (min-width: 768px) {
  .carousel__control--prev,
  .carousel__control--next {
    display: flex;
  }
}

.carousel__control--prev {
  left: var(--spacing-md);
}

.carousel__control--next {
  right: var(--spacing-md);
}

/* Play/Pause Control - Top Right Corner */
.carousel__control--play-pause {
  top: var(--spacing-md);
  right: var(--spacing-md);
  transform: none;
  width: 2.5rem;
  height: 2.5rem;
  font-size: var(--font-size-lg);
}

/* Indicator Dots */
.carousel__indicators {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

.carousel__indicator {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: var(--radius-full);
  background-color: var(--color-border);
  border: none;
  padding: 0;
  cursor: pointer;
  transition: background-color var(--transition-fast) ease,
              width var(--transition-fast) ease;
}

.carousel__indicator:hover {
  background-color: var(--color-border-accent);
}

.carousel__indicator:focus-visible {
  outline: 2px solid var(--color-accent-primary);
  outline-offset: 2px;
}

.carousel__indicator--active {
  width: 1.5rem;
  background: var(--color-accent-gradient);
}

/* Respect motion preferences - instant transitions */
@media (prefers-reduced-motion: reduce) {
  .carousel__track {
    transition: none;
  }

  .carousel__slide::after {
    transition: none;
  }

  .carousel__control {
    transition: none;
  }

  .carousel__indicator {
    transition: none;
  }
}