:root {
  --spider-runtime-phase: booting;
  --spider-camera-z: 0;
  --spider-hero-z: 99;
  --spider-hand-guide-z: 100;
  --spider-fx-z: 100;
  --spider-hud-z: 110;
}

[data-spider-runtime-layer],
.spider-hero-layer {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.spider-hero-layer {
  z-index: var(--spider-hero-z);
  display: block;
}

[data-spider-runtime-layer="hero"] {
  z-index: var(--spider-hero-z);
}

[data-spider-preview-source="synthetic"] {
  z-index: var(--spider-camera-z);
}

html[data-spider-runtime-phase="synthetic-preview"] .stage {
  visibility: hidden;
}

.spider-preview-label {
  position: fixed;
  top: max(16px, calc(env(safe-area-inset-top) + 10px));
  left: 50%;
  z-index: 111;
  padding: 8px 13px;
  color: #d8f3ff;
  font: 700 11px/1.25 ui-sans-serif, system-ui, sans-serif;
  letter-spacing: .08em;
  white-space: nowrap;
  pointer-events: none;
  background: rgb(4 10 19 / 82%);
  border: 1px solid rgb(84 196 255 / 38%);
  border-radius: 999px;
  box-shadow: 0 8px 28px rgb(0 0 0 / 32%);
  transform: translateX(-50%);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.spider-action-fx-layer {
  z-index: var(--spider-fx-z);
}

.spider-hud {
  z-index: var(--spider-hud-z);
}

html[data-spider-mode="shadow"] .spider-hero-layer {
  /* Palette changes happen in the renderer; this marker stays declarative. */
  color-scheme: dark;
}

@media (prefers-reduced-motion: reduce) {
  [data-spider-runtime-layer],
  .spider-hero-layer {
    transition-duration: 0ms !important;
    animation-duration: 0ms !important;
  }
}

@media (max-width: 680px) {
  .spider-preview-label {
    top: max(10px, calc(env(safe-area-inset-top) + 6px));
    max-width: calc(100vw - 24px);
    overflow: hidden;
    font-size: 9px;
    text-overflow: ellipsis;
  }
}