/* Mother — The Living Signal (see ../loader/loader.md) */

:root {
  --living-signal-gap: 0.62rem;
  --living-signal-dot: 0.38rem;
  --living-signal-color: color-mix(in srgb, var(--ink, #171717) 78%, transparent);
}

.living-signal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--living-signal-gap);
  pointer-events: none;
  user-select: none;
}

.living-signal__dot {
  display: block;
  width: var(--living-signal-dot);
  height: var(--living-signal-dot);
  border-radius: 50%;
  background: var(--living-signal-color);
  opacity: 0.42;
  transform: translate3d(0, 0, 0) scale(1);
  will-change: transform, opacity;
}

.living-signal--css .living-signal__dot:nth-child(1) {
  animation: living-signal-wave 1.6s cubic-bezier(0.45, 0.05, 0.25, 1) infinite;
}
.living-signal--css .living-signal__dot:nth-child(2) {
  animation: living-signal-wave 1.6s cubic-bezier(0.45, 0.05, 0.25, 1) infinite;
  animation-delay: 0.22s;
}
.living-signal--css .living-signal__dot:nth-child(3) {
  animation: living-signal-wave 1.6s cubic-bezier(0.45, 0.05, 0.25, 1) infinite;
  animation-delay: 0.44s;
}

@keyframes living-signal-wave {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
    opacity: 0.42;
  }
  35% {
    transform: translate3d(0, -3px, 0) scale(1.14);
    opacity: 0.92;
  }
  70% {
    transform: translate3d(0, 0, 0) scale(1);
    opacity: 0.42;
  }
}

.living-signal-host {
  position: relative;
  min-height: 2.75rem;
}

.living-signal-layer {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.living-signal-host--embed {
  min-height: 3.25rem;
  margin: 0;
  padding: 0.35rem 0;
  border: none;
  background: transparent;
}

.stream-body-shell {
  position: relative;
  min-height: 2.5rem;
  /* grid-area: body lives in style.css for Stream cards */
}

.stream-body-shell > .living-signal-layer {
  min-height: 2.5rem;
}

.living-signal-host > .living-signal {
  flex: 0 0 auto;
}

.app-loader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--page, #f5f2ec);
  transition: opacity 0.28s ease;
}

.app-loader.is-hidden {
  opacity: 0;
  visibility: hidden;
}

html.is-app-loading .app-frame,
html.is-app-loading .mode-switch {
  opacity: 0;
  pointer-events: none;
}

html.is-app-ready .app-frame {
  animation: living-signal-app-in 0.34s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes living-signal-app-in {
  from {
    opacity: 0;
    transform: translate3d(0, 6px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .living-signal--css .living-signal__dot {
    animation: none;
    opacity: 0.65;
  }
  .living-signal--css .living-signal__dot:nth-child(2) {
    opacity: 0.5;
  }
  .living-signal--css .living-signal__dot:nth-child(3) {
    opacity: 0.38;
  }
  html.is-app-ready .app-frame {
    animation: none;
  }
}