.banner-carousel {
  position: relative;
  overflow: hidden;
  background: #0b3b28;
}

.banner-track {
  position: relative;
  aspect-ratio: 1920 / 900;
  max-height: 680px;
  min-height: 320px;
}

.banner-slide {
  position: absolute;
  inset: 0;
  display: block;
  opacity: 0;
  visibility: hidden;
  transition: opacity .7s ease, visibility .7s ease;
}

.banner-slide.active {
  opacity: 1;
  visibility: visible;
}

.banner-slide img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center;
}

.banner-arrow {
  position: absolute;
  z-index: 3;
  top: 50%;
  transform: translateY(-50%);
  width: 46px;
  height: 46px;
  border: 1px solid rgba(255,255,255,.7);
  border-radius: 50%;
  background: rgba(9,46,32,.55);
  color: #fff;
  font-size: 30px;
  line-height: 1;
  cursor: pointer;
  backdrop-filter: blur(6px);
}

.banner-prev { left: 22px; }
.banner-next { right: 22px; }

.banner-dots {
  position: absolute;
  z-index: 3;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  display: flex;
  gap: 9px;
}

.banner-dots button {
  width: 9px;
  height: 9px;
  padding: 0;
  border: 1px solid #fff;
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
}

.banner-dots button.active { background: #fff; }

@media (max-width: 760px) {
  .banner-track {
    aspect-ratio: 16 / 9;
    min-height: 0;
  }

  .banner-slide img {
    object-position: center;
  }

  .banner-arrow {
    width: 36px;
    height: 36px;
    font-size: 24px;
  }

  .banner-prev { left: 10px; }
  .banner-next { right: 10px; }
  .banner-dots { bottom: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  .banner-slide { transition: none; }
}