frontend/src/components/shell/warmup.css

.warmup {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  background: var(--bg);
  transition: opacity 0.45s var(--ease);
}
.warmup.is-ready {
  opacity: 0;
  pointer-events: none;
}
.warmup__inner {
  text-align: center;
  padding: 24px;
}
.warmup__orb {
  position: relative;
  width: 84px;
  height: 84px;
  margin: 0 auto 26px;
}
.warmup__orb-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 3px solid var(--hairline);
  border-top-color: var(--accent-a);
  border-right-color: var(--accent-b);
  animation: spin 1.1s linear infinite;
}
.warmup__orb-core {
  position: absolute;
  inset: 26px;
  border-radius: 50%;
  background: var(--accent-gradient);
  box-shadow: var(--glow-accent-soft);
  animation: corePulse 1.8s var(--ease) infinite;
}
@keyframes corePulse {
  0%,
  100% {
    transform: scale(0.9);
    opacity: 0.85;
  }
  50% {
    transform: scale(1.05);
    opacity: 1;
  }
}
.warmup__title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}
.warmup__sub {
  margin-top: 8px;
  font-size: 13.5px;
  color: var(--text-muted);
  max-width: 360px;
}