.seat-anatomy-section {
  position: relative;
  background: #FFFFFF;
  border-top: 1px solid #E2E8F0;
  font-family: var(--font-family, 'Plus Jakarta Sans', sans-serif);
  padding: 56px 0 36px;
  overflow: visible !important;
}

.anatomy-scroll-track {
  position: relative;
  height: auto;
  overflow: visible !important;
}

.anatomy-sticky-box {
  position: relative;
  top: auto;
  height: auto;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #FFFFFF;
  z-index: 10;
}

.anatomy-inner-container {
  width: 100%;
  height: auto;
  max-width: 1400px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 20px;
  padding-top: 0;
  padding-bottom: 0;
  box-sizing: border-box;
}

.anatomy-header {
  text-align: center;
  margin-bottom: 4px;
  width: 100%;
  flex-shrink: 0;
}

.anatomy-tagline {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: #DF0513;
  margin-bottom: 4px;
}

.anatomy-title {
  font-size: 32px;
  font-weight: 800;
  color: #0F172A;
  margin: 0;
  line-height: 1.25;
  letter-spacing: -0.8px;
}

.anatomy-stage-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr 1fr;
  gap: 32px;
  align-items: center;
  height: auto;
  width: 100%;
}

.anatomy-cards-col {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.anatomy-card {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  border-radius: 14px;
  padding: 18px 20px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  opacity: 0.45;
  transform: translateY(4px);
}

.anatomy-card.active {
  opacity: 1;
  border-color: #DF0513;
  transform: translateY(0);
  box-shadow: 0 10px 28px rgba(223, 5, 19, 0.12);
}

.anatomy-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.anatomy-step-pill {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 1px;
  padding: 4px 10px;
  border-radius: 4px;
  background: #0B0F19;
  color: #FFFFFF;
  line-height: 1;
}

.anatomy-card.active .anatomy-step-pill {
  background: #DF0513;
}

.anatomy-card-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: #F8FAFC;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s ease;
}

.anatomy-card-icon svg {
  width: 20px;
  height: 20px;
  color: #000000;
  transition: color 0.25s ease;
}

.anatomy-card.active .anatomy-card-icon {
  background: #FEF2F2;
}

.anatomy-card.active .anatomy-card-icon svg,
.anatomy-card:hover .anatomy-card-icon svg {
  color: #DF0513;
}

.anatomy-card-title {
  font-size: 15.5px;
  font-weight: 700;
  color: #0F172A;
  margin: 0 0 6px;
  line-height: 1.3;
}

.anatomy-card-desc {
  font-size: 12.5px;
  color: #64748B;
  margin: 0 0 10px;
  line-height: 1.45;
}

.anatomy-card-feature {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  color: #DF0513;
  background: #FEF2F2;
  padding: 3px 9px;
  border-radius: 4px;
}

.anatomy-center-stage {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: auto;
}

.anatomy-media-frame {
  position: relative;
  width: 100%;
  max-width: 360px;
  aspect-ratio: 9 / 16;
  max-height: 440px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
}

.anatomy-media-frame::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 50px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.75) 45%, #FFFFFF 100%);
  pointer-events: none;
  z-index: 2;
}

.anatomy-video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  pointer-events: none;
  background: transparent;
  display: block;
  -webkit-mask-image: linear-gradient(to bottom, #000000 0%, #000000 calc(100% - 30px), transparent 100%);
  mask-image: linear-gradient(to bottom, #000000 0%, #000000 calc(100% - 30px), transparent 100%);
}

.anatomy-scroll-hint {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
  font-size: 12px;
  font-weight: 700;
  color: #64748B;
  transition: opacity 0.3s ease;
}

.hint-mouse {
  width: 14px;
  height: 22px;
  border: 1.5px solid #64748B;
  border-radius: 10px;
  position: relative;
  display: flex;
  justify-content: center;
}

.hint-wheel {
  width: 2px;
  height: 5px;
  background: #DF0513;
  border-radius: 2px;
  margin-top: 3px;
  animation: mouseWheelMove 1.5s infinite;
}

@keyframes mouseWheelMove {
  0% {
    opacity: 1;
    transform: translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateY(6px);
  }
}

@media (max-width: 1024px) {
  .anatomy-scroll-track {
    height: auto;
  }

  .anatomy-stage-grid {
    position: relative;
    grid-template-columns: 1fr;
    gap: 16px;
    align-items: center;
    justify-content: center;
  }

  .anatomy-cards-col {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10;
    display: flex;
    justify-content: center;
    pointer-events: none;
  }

  .anatomy-cards-col .anatomy-card {
    display: none;
    width: 100%;
    max-width: 380px;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid #E2E8F0;
    border-radius: 12px;
    padding: 12px 16px;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.12);
    pointer-events: auto;
  }

  .anatomy-cards-col .anatomy-card.active {
    display: block;
    animation: anatomyCardSlideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .anatomy-media-frame {
    max-width: 360px;
    max-height: 440px;
  }
}

@keyframes anatomyCardSlideUp {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 840px) {
  .seat-anatomy-section {
    padding: 32px 0 24px;
  }

  .anatomy-scroll-track {
    height: auto !important;
  }

  .anatomy-sticky-box {
    position: static !important;
    height: auto !important;
    top: auto !important;
  }

  .anatomy-inner-container {
    height: auto !important;
    padding: 0 !important;
    gap: 12px;
  }

  .anatomy-stage-grid {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
    height: auto !important;
    position: static;
  }

  .anatomy-center-stage {
    height: auto !important;
    width: 100%;
  }

  .anatomy-media-frame {
    max-width: 340px;
    max-height: 420px;
    aspect-ratio: 9 / 16;
  }

  .anatomy-cards-col {
    display: none !important;
  }

  .anatomy-title {
    font-size: 22px;
  }
}

@media (max-width: 640px) {
  .seat-anatomy-section {
    padding: 28px 0 20px;
  }

  .anatomy-media-frame {
    max-width: 300px;
    max-height: 380px;
  }

  .anatomy-title {
    font-size: 20px;
    line-height: 1.25;
  }
}