/* Motion enhances a fully visible static page. All text keeps full opacity. */
.optics-art figcaption {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 16px;
}
#motion-toggle {
  min-width: 88px;
  min-height: 44px;
  padding: 8px 12px;
  background: transparent;
  color: var(--secondary);
  border: 1px solid var(--line);
  border-radius: 6px;
  font-size: 14px;
}
#motion-toggle:hover:not(:disabled) {
  background: var(--raised);
}
#motion-toggle:disabled {
  cursor: default;
}
:root[data-motion="paused"] * {
  animation-play-state: paused !important;
  transition: none !important;
}
:root[data-motion="paused"],
:root[data-motion="reduced"] {
  scroll-behavior: auto;
}
:root[data-motion="paused"] .primary:hover,
:root[data-motion="reduced"] .primary:hover {
  transform: none;
}
.wave-packet {
  opacity: 0;
  fill: none;
  stroke: var(--accent);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-dasharray: 0.065 0.935;
}
.wave-trace {
  stroke-dasharray: 1;
  stroke-dashoffset: 0;
}
.motion-ready .wave-rings ellipse {
  transform-box: fill-box;
  transform-origin: center;
  animation: wave-radiate 6.4s linear infinite;
  animation-delay: var(--wave-delay, 0s);
  animation-play-state: paused;
}
.motion-ready .wave-packet {
  animation: signal-travel 6.4s linear infinite;
  animation-play-state: paused;
}
.motion-ready .wave-source {
  transform-box: fill-box;
  transform-origin: center;
  animation: source-pulse 6.4s ease-in-out infinite;
  animation-play-state: paused;
}
:root[data-motion="running"][data-wave-active="true"] .wave-rings ellipse,
:root[data-motion="running"][data-wave-active="true"] .wave-packet,
:root[data-motion="running"][data-wave-active="true"] .wave-source {
  animation-play-state: running;
}
@keyframes wave-radiate {
  0% {
    transform: scale(0.86);
    opacity: 0.26;
  }
  38% {
    opacity: 0.95;
  }
  100% {
    transform: scale(1.1);
    opacity: 0.26;
  }
}
@keyframes signal-travel {
  0% {
    stroke-dashoffset: 1.1;
    opacity: 0;
  }
  8% {
    opacity: 1;
  }
  76% {
    opacity: 1;
  }
  92%,
  100% {
    stroke-dashoffset: -0.1;
    opacity: 0;
  }
}
@keyframes source-pulse {
  0%,
  100% {
    transform: scale(1);
  }
  35% {
    transform: scale(1.45);
  }
  60% {
    transform: scale(1);
  }
}
.tabs.tab-motion-ready,
.example-sidebar.tab-motion-ready {
  position: relative;
  isolation: isolate;
}
.tab-motion-ready > .tab-indicator {
  position: absolute;
  left: 0;
  top: 0;
  pointer-events: none;
  border-radius: 7px;
  background: var(--surface);
  box-shadow: 0 1px 4px #00000008;
  transform-origin: left top;
  z-index: 0;
}
.example-sidebar.tab-motion-ready > .tab-indicator {
  background: var(--accent-soft);
  box-shadow: none;
}
.tab-motion-ready > button {
  position: relative;
  z-index: 1;
}
.tabs.tab-motion-ready > button[aria-selected="true"],
.example-sidebar.tab-motion-ready > button[aria-selected="true"] {
  background: transparent;
  box-shadow: none;
}
@media (prefers-reduced-motion: reduce) {
  .motion-ready .wave-rings ellipse,
  .motion-ready .wave-packet,
  .motion-ready .wave-source {
    animation: none !important;
  }
  .wave-packet {
    opacity: 0;
  }
}