:root {
  --glow: #ff4500;
  --metal: #ff9900;
  --tube-bg: radial-gradient(circle, #111 0%, #000 100%);
}

body {
  margin: 0;
  /*background: var(--tube-bg);*/
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;

  background: radial-gradient(circle at center, #2b1f08 0%, #331a00 60%, #000 100%);
  box-shadow: inset 0 0 200px #1b1101;
}

.clock-structure {
  position: relative;
  width: 220px;
  height: 540px;
}

.tube {
  position: absolute;
  top: 50px;
  left: 50%;
  transform: translateX(-50%);
  width: 160px;
  height: 420px;
  background: rgba(0, 0, 0, 0.6);
  border-radius: 80px;
  box-shadow: 0 0 60px var(--glow);
  border: 4px solid var(--metal);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 30px;
}

.honeycomb {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(#222 1px, transparent 1px);
  background-size: 12px 12px;
  opacity: 0.2;
  z-index: 0;
}

.digits {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 0.5em;
  align-items: center;
}

.digit {
  font-family: 'Courier New', monospace;
  font-size: 2.8em;
  color: var(--glow);
  text-shadow: 0 0 10px var(--glow), 0 0 20px var(--glow);
  text-align: center;
}
.unit-label {
  font-size: 0.8em;
  color: var(--glow);
  text-shadow: 0 0 6px var(--glow);
  margin-bottom: 0.5em;
}


.support {
  position: absolute;
  width: 12px;
  height: 420px;
  background: var(--metal);
  border-radius: 6px;
  top: 50px;
}

.support.left { left: 20px; }
.support.right { right: 20px; }

.arch-top {
  position: absolute;
  top: 0;
  left: 20px;
  right: 20px;
  height: 50px;
  border-top: 4px solid var(--metal);
  border-radius: 50% / 100%;
}

.finial {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 18px;
  height: 18px;
  background: var(--metal);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--metal);
}

.base {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 220px;
  height: 50px;
  background: #111;
  border-radius: 25px;
  box-shadow: 0 0 40px var(--glow);
}

.base-light {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 18px;
  height: 18px;
  background: var(--glow);
  border-radius: 50%;
  box-shadow: 0 0 30px var(--glow);
}