/* Glüheffekte für Header-Bild und Upload-Box
   Lokal, ohne externe Abhängigkeiten. Wird durch data/scripts/bild-komprimierer-effekte.js befüllt. */

.tool-header-image,
.hero-dropzone {
  isolation: isolate;
}

.header-glow-layer {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: block;
  overflow: hidden;
  border-radius: inherit;
  pointer-events: none;
  mix-blend-mode: screen;
}

.header-glow-layer::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 22% 28%, rgba(76, 225, 255, 0.08), transparent 25%),
    radial-gradient(circle at 76% 38%, rgba(141, 105, 255, 0.07), transparent 23%);
  opacity: 0.42;
}

.header-glow-dot {
  position: absolute;
  left: var(--start-x, 50%);
  top: var(--start-y, 50%);
  width: var(--size, 10px);
  height: var(--size, 10px);
  border-radius: 999px;
  background:
    radial-gradient(circle,
      rgba(255, 255, 255, var(--core-a, 0.80)) 0 9%,
      rgba(122, 239, 255, var(--color-a, 0.68)) 24%,
      rgba(55, 163, 255, var(--edge-a, 0.20)) 54%,
      transparent 77%);
  box-shadow:
    0 0 calc(var(--size, 10px) * 0.86) rgba(126, 238, 255, var(--halo-a, 0.32)),
    0 0 calc(var(--size, 10px) * 2.10) rgba(82, 158, 255, var(--wide-halo-a, 0.14));
  opacity: 0;
  visibility: hidden;
  filter: blur(var(--blur, 0px));
  transform: translate3d(0, 0, 0) scale(0.38);
  will-change: transform, opacity;
}

.header-glow-dot.is-glow-active {
  visibility: visible;
  animation: headerGlowFly var(--duration, 12s) var(--timing, ease-in-out) 0s 1 both;
}

.header-glow-dot:nth-child(3n) {
  background:
    radial-gradient(circle,
      rgba(255, 255, 255, var(--core-a, 0.78)) 0 9%,
      rgba(176, 135, 255, var(--color-a, 0.62)) 24%,
      rgba(100, 92, 255, var(--edge-a, 0.18)) 54%,
      transparent 77%);
  box-shadow:
    0 0 calc(var(--size, 10px) * 0.86) rgba(190, 151, 255, var(--halo-a, 0.30)),
    0 0 calc(var(--size, 10px) * 2.10) rgba(94, 128, 255, var(--wide-halo-a, 0.13));
}

.header-glow-dot.is-large-glow {
  mix-blend-mode: screen;
}

@keyframes headerGlowFly {
  0%, 10% {
    opacity: 0;
    transform: translate3d(0, 0, 0) scale(0.34);
  }
  30% {
    opacity: calc(var(--opacity, 0.40) * 0.62);
  }
  44% {
    opacity: var(--opacity, 0.40);
    transform: translate3d(var(--mid-x, 30px), var(--mid-y, -16px), 0) scale(0.88);
  }
  66% {
    opacity: var(--opacity, 0.40);
    transform: translate3d(var(--mid2-x, 54px), var(--mid2-y, -26px), 0) scale(1);
  }
  86% {
    opacity: calc(var(--opacity, 0.40) * 0.44);
  }
  100% {
    opacity: 0;
    transform: translate3d(var(--move-x, 90px), var(--move-y, -44px), 0) scale(0.52);
  }
}

.header-engine-badge,
.header-phase-badge {
  z-index: 3;
}

@media (max-width: 640px) {
  .header-glow-dot {
    width: calc(var(--size, 10px) * 0.82);
    height: calc(var(--size, 10px) * 0.82);
  }
}

@media (prefers-reduced-motion: reduce) {
  .header-glow-dot {
    animation: none;
    opacity: 0.16;
    visibility: visible;
  }
}