.scene-viewer {
  font-family: 'Noto Sans', sans-serif;
}

.viewer-loading-overlay {
  display: none;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0, 0, 0, 0.8);
  color: white;
  padding: 20px;
  border-radius: 8px;
  z-index: 10;
}

.viewer-loading-text {
  text-align: center;
  margin-top: 10px;
}

.loading-spinner {
  width: 50px;
  height: 50px;
  border: 5px solid rgba(255, 255, 255, 0.3);
  border-top: 5px solid white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

#viewer-container, #viewer-container-2 {
  height: 500px;
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: 10px;
  margin: 20px auto;
  position: relative;
  overflow: hidden;
  display: flex;
  gap: 10px;
  background: #fff;
}

#viewer-left, #viewer-right, #viewer-left-2, #viewer-right-2 {
  flex: 1;
  height: 100%;
  position: relative;
  border: 1px solid var(--border-color, #e2e8f0);
}

.viewer-label {
  position: absolute;
  top: 10px;
  left: 10px;
  background: rgba(30, 41, 59, 0.85);
  color: white;
  padding: 5px 10px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  z-index: 5;
}

.scene-viewer #button-block,
.scene-viewer #button-block-2 {
  text-align: center;
  margin: 20px auto;
}

#button-block input[type="range"],
#button-block-2 input[type="range"] {
  -webkit-appearance: none;
  width: min(400px, 80vw);
  height: 10px;
  background: linear-gradient(to right, #bfdbfe, #2563eb);
  border-radius: 10px;
  outline: none;
  transition: background 0.3s;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

#button-block input[type="range"]::-webkit-slider-thumb,
#button-block-2 input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #ffffff;
  border: 3px solid #2563eb;
  cursor: pointer;
  transition: transform 0.2s, background-color 0.3s;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

#button-block input[type="range"]::-webkit-slider-thumb:hover,
#button-block-2 input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  background-color: #eff6ff;
}

#button-block span,
#button-block-2 span {
  font-size: 16px;
  font-weight: 600;
  margin-right: 12px;
  color: var(--text-primary, #1e293b);
}

.scene-swiper {
  width: 100%;
  max-width: 100%;
  height: 200px;
  background: var(--background-secondary, #f8fafc);
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: 10px;
  margin: 0 auto;
  position: relative;
  padding: 0 50px !important;
  overflow: hidden;
}

.scene-swiper .swiper-wrapper {
  display: flex;
}

.scene-swiper .swiper-slide {
  flex: 0 0 calc((100% - 40px) / 3);
  display: flex;
  justify-content: center;
  align-items: center;
}

.scene-swiper .swiper-slide img {
  width: auto;
  height: 130px;
  border-radius: 8px;
  cursor: pointer;
  object-fit: cover;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.12);
  transition: transform 0.3s ease;
  border: 2px solid transparent;
}

.scene-swiper .swiper-slide img:hover {
  transform: scale(1.08);
}

.scene-swiper .swiper-slide img.active {
  border: 2px solid #2563eb;
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.35);
}

.scene-swiper .swiper-button-prev,
.scene-swiper .swiper-button-next {
  color: #2563eb;
}

@media screen and (max-width: 768px) {
  #viewer-container, #viewer-container-2 {
    flex-direction: column;
    height: auto;
    min-height: 640px;
  }

  #viewer-left, #viewer-right, #viewer-left-2, #viewer-right-2 {
    min-height: 300px;
  }

  .scene-swiper .swiper-slide {
    flex: 0 0 calc((100% - 20px) / 2);
  }
}