.hero {
  perspective: 1200px;
}

.ice-cube-field {
  position: fixed;
  z-index: 4;
  inset: 0;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  pointer-events: none;
  perspective: 1200px;
  opacity: 1;
  transition: opacity 0.45s ease;
}

.ice-cube-field.is-hidden {
  opacity: 0;
}

.ice-cube {
  position: absolute;
  display: block;
  width: clamp(4.8rem, 8vw, 8rem);
  aspect-ratio: 1;
  transform-style: preserve-3d;
  will-change: transform;
}

.ice-cube-one {
  top: 18%;
  left: 65%;
  animation: ice-cube-drift-one 13s ease-in-out infinite;
}

.ice-pyramid {
  position: absolute;
  top: 51%;
  left: 78%;
  width: clamp(3.8rem, 6vw, 6rem);
  aspect-ratio: 1;
  transform-style: preserve-3d;
  will-change: transform;
  animation: ice-pyramid-drift 11s 1.2s ease-in-out infinite;
}

.ice-sphere {
  position: absolute;
  top: 67%;
  left: 57%;
  width: clamp(3rem, 5vw, 5rem);
  aspect-ratio: 1;
  overflow: hidden;
  border: 1px solid rgba(163, 201, 201, 0.82);
  border-radius: 50%;
  background: radial-gradient(circle at 30% 25%, rgba(254, 252, 255, 0.72), rgba(0, 247, 212, 0.18) 22%, rgba(32, 106, 100, 0.7) 70%, rgba(0, 47, 43, 0.96));
  box-shadow: inset -1rem -1.1rem 1.8rem rgba(0, 47, 43, 0.45), inset 0.6rem 0.6rem 1.3rem rgba(254, 252, 255, 0.28), 0 0 2.8rem rgba(0, 247, 212, 0.24);
  transform-style: preserve-3d;
  will-change: transform;
  animation: ice-sphere-drift 9s 2.4s ease-in-out infinite;
}

.sphere-latitude,
.sphere-longitude {
  position: absolute;
  display: block;
  border: 1px solid rgba(254, 252, 255, 0.42);
  border-radius: 50%;
  pointer-events: none;
}

.sphere-latitude {
  inset: 28% -12%;
  transform: rotate(-17deg);
  animation: sphere-latitude 4s linear infinite;
}

.sphere-longitude {
  inset: -12% 29%;
  transform: rotate(25deg);
  animation: sphere-longitude 5s linear infinite;
}

.sphere-glint {
  position: absolute;
  top: 18%;
  left: 23%;
  width: 18%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: #fefcff;
  box-shadow: 0 0 1rem rgba(254, 252, 255, 0.8);
}

.pyramid-face {
  position: absolute;
  inset: 0;
  display: block;
  clip-path: polygon(50% 0, 100% 100%, 0 100%);
  border: 1px solid rgba(163, 201, 201, 0.72);
  background: linear-gradient(145deg, rgba(254, 252, 255, 0.34), rgba(0, 247, 212, 0.1) 55%, rgba(32, 106, 100, 0.62));
  transform-origin: 50% 100%;
  backface-visibility: visible;
}

.pyramid-face-front { transform: rotateY(0deg) translateZ(1.2rem) rotateX(2deg); }
.pyramid-face-right { transform: rotateY(90deg) translateZ(1.2rem) rotateX(2deg); }
.pyramid-face-back { transform: rotateY(180deg) translateZ(1.2rem) rotateX(2deg); }
.pyramid-face-left { transform: rotateY(-90deg) translateZ(1.2rem) rotateX(2deg); }

.ice-cube-two {
  top: 50%;
  left: 78%;
  width: clamp(3.2rem, 5vw, 5rem);
  animation: ice-cube-drift-two 10s 1.2s ease-in-out infinite;
}

.ice-cube-three {
  top: 65%;
  left: 57%;
  width: clamp(2.6rem, 4vw, 4rem);
  animation: ice-cube-drift-three 9s 2.4s ease-in-out infinite;
}

.ice-face {
  position: absolute;
  inset: 0;
  display: block;
  border: 1px solid rgba(163, 201, 201, 0.72);
  background:
    linear-gradient(135deg, rgba(254, 252, 255, 0.28), rgba(0, 247, 212, 0.06) 50%, rgba(32, 106, 100, 0.22)),
    rgba(163, 201, 201, 0.08);
  box-shadow: inset 0 0 1.8rem rgba(254, 252, 255, 0.12), 0 0 2.5rem rgba(0, 247, 212, 0.13);
  backface-visibility: visible;
}

.ice-face-front { transform: translateZ(2.7rem); }
.ice-face-back { transform: rotateY(180deg) translateZ(2.7rem); }
.ice-face-right { transform: rotateY(90deg) translateZ(2.7rem); }
.ice-face-left { transform: rotateY(-90deg) translateZ(2.7rem); }
.ice-face-top { transform: rotateX(90deg) translateZ(2.7rem); }
.ice-face-bottom { transform: rotateX(-90deg) translateZ(2.7rem); }

.ice-cube-two .ice-face-front,
.ice-cube-two .ice-face-back,
.ice-cube-two .ice-face-right,
.ice-cube-two .ice-face-left,
.ice-cube-two .ice-face-top,
.ice-cube-two .ice-face-bottom {
  transform-origin: center;
}

.ice-cube-two .ice-face-front { transform: translateZ(1.7rem); }
.ice-cube-two .ice-face-back { transform: rotateY(180deg) translateZ(1.7rem); }
.ice-cube-two .ice-face-right { transform: rotateY(90deg) translateZ(1.7rem); }
.ice-cube-two .ice-face-left { transform: rotateY(-90deg) translateZ(1.7rem); }
.ice-cube-two .ice-face-top { transform: rotateX(90deg) translateZ(1.7rem); }
.ice-cube-two .ice-face-bottom { transform: rotateX(-90deg) translateZ(1.7rem); }

.ice-cube-three .ice-face-front { transform: translateZ(1.35rem); }
.ice-cube-three .ice-face-back { transform: rotateY(180deg) translateZ(1.35rem); }
.ice-cube-three .ice-face-right { transform: rotateY(90deg) translateZ(1.35rem); }
.ice-cube-three .ice-face-left { transform: rotateY(-90deg) translateZ(1.35rem); }
.ice-cube-three .ice-face-top { transform: rotateX(90deg) translateZ(1.35rem); }
.ice-cube-three .ice-face-bottom { transform: rotateX(-90deg) translateZ(1.35rem); }

@keyframes ice-cube-drift-one {
  0%, 100% { transform: translate3d(0, 0, 0) rotateX(18deg) rotateY(-24deg) rotateZ(8deg); }
  50% { transform: translate3d(-2rem, 2.4rem, 5rem) rotateX(188deg) rotateY(152deg) rotateZ(28deg); }
}

@keyframes ice-cube-drift-two {
  0%, 100% { transform: translate3d(0, 0, 0) rotateX(-16deg) rotateY(26deg) rotateZ(-14deg); }
  50% { transform: translate3d(1.4rem, -2rem, 2rem) rotateX(170deg) rotateY(-144deg) rotateZ(18deg); }
}

@keyframes ice-cube-drift-three {
  0%, 100% { transform: translate3d(0, 0, 0) rotateX(24deg) rotateY(18deg) rotateZ(-12deg); }
  50% { transform: translate3d(2.2rem, 1.2rem, 3rem) rotateX(-140deg) rotateY(190deg) rotateZ(22deg); }
}

@keyframes ice-pyramid-drift {
  0%, 100% { transform: translate3d(0, 0, 0) rotateX(12deg) rotateY(-28deg) rotateZ(8deg); }
  50% { transform: translate3d(1.8rem, -2rem, 4rem) rotateX(178deg) rotateY(156deg) rotateZ(-22deg); }
}

@keyframes ice-sphere-drift {
  0%, 100% { transform: translate3d(0, 0, 0) rotateX(0deg) rotateY(0deg); }
  50% { transform: translate3d(2.2rem, 1.4rem, 3rem) rotateX(180deg) rotateY(220deg); }
}

@keyframes sphere-latitude {
  from { transform: rotate(-17deg) translateX(-4%); }
  to { transform: rotate(-17deg) translateX(4%); }
}

@keyframes sphere-longitude {
  from { transform: rotate(25deg) scaleX(0.72); }
  to { transform: rotate(25deg) scaleX(1.12); }
}

@media (max-width: 680px) {
  .ice-cube-one { top: 20%; left: 69%; }
  .ice-pyramid { top: 53%; left: 75%; }
  .ice-sphere { top: 68%; left: 53%; }
}

@media (prefers-reduced-motion: reduce) {
  .ice-cube-one,
  .ice-pyramid,
  .ice-sphere {
    animation: none;
  }

  .sphere-latitude,
  .sphere-longitude {
    animation: none;
  }
}