:root {
  --bg: #0b0b10;
  --text: #f5f5ff;
  --cube-size: 220px;

  --spin-duration: 6s;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: radial-gradient(1200px 600px at 50% 30%, #191927, var(--bg));
  color: var(--text);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

.wrap {
  display: grid;
  place-items: center;
  gap: 22px;
  padding: 32px 16px;
  text-align: center;
}

h1 {
  margin: 0;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: lowercase;
}

.scene {
  width: var(--cube-size);
  height: var(--cube-size);
  perspective: 900px;
  perspective-origin: 50% 40%;
}

.cube {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;

  animation: spin var(--spin-duration) linear infinite;
}

.face {
  position: absolute;
  width: var(--cube-size);
  height: var(--cube-size);
  background-image: url("clown.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;

  border: 1px solid rgba(255,255,255,0.15);
  box-shadow: 0 0 20px rgba(0,0,0,0.35) inset;
}

.front  { transform: rotateY(  0deg) translateZ(calc(var(--cube-size) / 2)); }
.back   { transform: rotateY(180deg) translateZ(calc(var(--cube-size) / 2)); }
.right  { transform: rotateY( 90deg) translateZ(calc(var(--cube-size) / 2)); }
.left   { transform: rotateY(-90deg) translateZ(calc(var(--cube-size) / 2)); }
.top    { transform: rotateX( 90deg) translateZ(calc(var(--cube-size) / 2)); }
.bottom { transform: rotateX(-90deg) translateZ(calc(var(--cube-size) / 2)); }

@keyframes spin {
  0%   { transform: rotateX(18deg) rotateY(0deg); }
  100% { transform: rotateX(18deg) rotateY(360deg); }
}

.hint {
  margin: 0;
  opacity: 0.85;
  font-size: 0.95rem;
}