/* Shared interior-page rainbow border treatment. Surfaces opt in explicitly. */
.rainbow_border_panel {
  position: relative;
  isolation: isolate;
}

.rainbow_border_panel:not(.rainbow_border_panel--edge-after)::before,
.rainbow_border_panel--edge-after::after {
  position: absolute;
  z-index: 8;
  inset: 0;
  padding: 1.5px;
  border-radius: inherit;
  background: linear-gradient(115deg, #ef3d4d, #ff9f1c, #f2cf32, #21a675, #0f9fe8, #7657d5, #ef3d4d);
  background-position: 100% 50%;
  background-size: 240% 100%;
  content: "";
  opacity: 0;
  pointer-events: none;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  transition: opacity 220ms ease;
}

.rainbow_border_panel:hover:not(.rainbow_border_panel--edge-after)::before,
.rainbow_border_panel:focus-within:not(.rainbow_border_panel--edge-after)::before,
.rainbow_border_panel--edge-after:hover::after,
.rainbow_border_panel--edge-after:focus-within::after {
  opacity: 0.86;
  animation: rainbowBorderSweep 3.2s linear infinite;
}

.rainbow_border_panel--featured:not(.rainbow_border_panel--edge-after)::before,
.rainbow_border_panel--featured.rainbow_border_panel--edge-after::after {
  opacity: 0.7;
  animation: rainbowBorderSweep 4.8s linear infinite;
}

.rainbow_border_panel--featured:hover:not(.rainbow_border_panel--edge-after)::before,
.rainbow_border_panel--featured:focus-within:not(.rainbow_border_panel--edge-after)::before,
.rainbow_border_panel--featured.rainbow_border_panel--edge-after:hover::after,
.rainbow_border_panel--featured.rainbow_border_panel--edge-after:focus-within::after {
  opacity: 0.9;
}

@keyframes rainbowBorderSweep {
  to {
    background-position: -140% 50%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .rainbow_border_panel:not(.rainbow_border_panel--edge-after)::before,
  .rainbow_border_panel--edge-after::after {
    animation: none !important;
    background-position: 50% 50%;
    transition: none;
  }
}