/* Instant boot shell — visible until React mounts */
#vp-boot-shell {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem 1.5rem;
  background: linear-gradient(180deg, #070b12 0%, #0a1018 50%, #070b12 100%);
  color: #e2e8f0;
  font-family: Inter, system-ui, sans-serif;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}

#vp-boot-shell.vp-boot-done {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.vp-boot-kicker {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #34d399;
  margin: 0 0 1rem;
}

#vp-boot-shell h1 {
  font-size: clamp(1.75rem, 5vw, 3rem);
  line-height: 1.1;
  margin: 0 0 0.75rem;
  color: #f8fafc;
  max-width: 18ch;
}

#vp-boot-shell p {
  margin: 0;
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.95rem;
}

.vp-boot-spinner {
  width: 2rem;
  height: 2rem;
  margin: 1.5rem auto 0;
  border: 2px solid rgba(52, 211, 153, 0.25);
  border-top-color: #34d399;
  border-radius: 50%;
  animation: vp-boot-spin 0.8s linear infinite;
}

@keyframes vp-boot-spin {
  to { transform: rotate(360deg); }
}