/* =============================================================
   Carousel — reusable scroll-snap slider
   ============================================================= */

.carousel {
  position: relative;
}

.carousel__track-wrapper {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.carousel__track {
  display: flex;
  gap: var(--sp-4);
  scroll-snap-type: x mandatory;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  scroll-behavior: smooth;
}

.carousel__track::-webkit-scrollbar { display: none; }

.carousel__slide {
  scroll-snap-align: start;
  flex-shrink: 0;
}

/* Full-width banner carousel */
.carousel--banner .carousel__track {
  gap: 0;
}

.carousel--banner .carousel__slide {
  width: 100%;
}

/* Multi-item carousels */
.carousel--4 .carousel__slide  { width: calc(25% - var(--sp-3)); }
.carousel--3 .carousel__slide  { width: calc(33.333% - var(--sp-3)); }
.carousel--2 .carousel__slide  { width: calc(50% - var(--sp-2)); }

/* Navigation arrows */
.carousel__btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-primary);
  transition: background var(--transition), border-color var(--transition);
}

.carousel__btn:hover {
  background: var(--color-brand);
  border-color: var(--color-brand);
  color: #fff;
}

.carousel__btn--prev { left: -16px; }
.carousel__btn--next { right: -16px; }

.carousel__btn svg {
  width: 18px;
  height: 18px;
}

.carousel__btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

/* Dots */
.carousel__dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: var(--sp-4);
}

.carousel__dots--overlay {
  position: absolute;
  bottom: var(--sp-4);
  left: 50%;
  transform: translateX(-50%);
  margin-top: 0;
}

.carousel__dots--overlay .carousel__dot {
  background: rgba(255, 255, 255, 0.5);
}

.carousel__dots--overlay .carousel__dot--active {
  background: #fff;
}

.carousel__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-border);
  transition: background var(--transition), width var(--transition);
  cursor: pointer;
  border: none;
}

.carousel__dot--active {
  background: var(--color-brand);
  width: 24px;
  border-radius: var(--radius-full);
}

/* Responsive */
@media (max-width: 1024px) {
  .carousel--4 .carousel__slide { width: calc(33.333% - var(--sp-3)); }
  .carousel__btn--prev { left: -8px; }
  .carousel__btn--next { right: -8px; }
}

@media (max-width: 767px) {
  .carousel--4 .carousel__slide,
  .carousel--3 .carousel__slide { width: calc(50% - var(--sp-2)); }
  .carousel--2 .carousel__slide { width: 85%; }
  .carousel__btn { display: none; }
}

/* =============================================================
   Brands carousel — логотипы брендов
   ============================================================= */

.carousel--brands .carousel__track {
  gap: var(--sp-2);
}

.carousel--brands .carousel__slide {
  width: calc((100% - var(--sp-2) * 9) / 10);
  flex-shrink: 0;
}

.brand-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 64px;
  padding: var(--sp-2);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
  text-decoration: none;
}
.brand-logo:hover {
  border-color: var(--color-brand);
  box-shadow: var(--shadow-sm);
}

.brand-logo__img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: grayscale(0.2);
  transition: filter var(--transition);
}
.brand-logo:hover .brand-logo__img {
  filter: grayscale(0);
}

.brand-logo__fallback {
  font-size: 14px;
  font-weight: 800;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
}

@media (max-width: 1024px) {
  .carousel--brands .carousel__slide { width: calc((100% - var(--sp-2) * 6) / 7); }
}
@media (max-width: 767px) {
  .carousel--brands .carousel__slide { width: calc((100% - var(--sp-2) * 4) / 5); }
  .brand-logo { height: 56px; }
}
@media (max-width: 480px) {
  .carousel--brands .carousel__slide { width: calc((100% - var(--sp-2) * 3) / 4); }
}