/*
 * genesis.css — styling for the "Fragments of Infinity" looping animation piece
 * that replaces the static image grid on the homepage.
 */
.genesis {
  position: relative;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  background: #0d130f;            /* dark backdrop while frames load */
  overflow: hidden;
  line-height: 0;
}
.genesis__canvas {
  display: block;
  width: 100%;
  height: auto;
  image-rendering: auto;
  cursor: zoom-in; /* hover affordance: click to enlarge */
}

/* Subtle "click to enlarge" hint that appears on hover (desktop) */
.genesis__hint {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 6px 11px;
  font-size: 12px;
  letter-spacing: .04em;
  color: #fff;
  background: rgba(0, 0, 0, .42);
  border-radius: 20px;
  opacity: 0;
  transition: opacity .25s ease;
  pointer-events: none;
  z-index: 2;
}
@media (hover: hover) {
  .genesis:hover .genesis__hint { opacity: 1; }
}

/* Fullscreen: centre the canvas on a black backdrop */
.genesis.is-fullscreen,
.genesis:fullscreen,
.genesis:-webkit-full-screen {
  max-width: none;
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
}
.genesis.is-fullscreen .genesis__canvas,
.genesis:fullscreen .genesis__canvas,
.genesis:-webkit-full-screen .genesis__canvas {
  width: auto;
  height: auto;
  cursor: zoom-out;
}
.genesis.is-fullscreen .genesis__hint,
.genesis:fullscreen .genesis__hint { display: none; }

/* Sound toggle button (bottom-right) */
.genesis__sound {
  position: absolute;
  bottom: 14px;
  right: 14px;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 50%;
  background: rgba(0, 0, 0, .45);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .2s ease, opacity .2s ease;
  -webkit-tap-highlight-color: transparent;
  z-index: 2;
}
.genesis__sound:hover { background: rgba(0, 0, 0, .7); }
.genesis__sound svg { width: 20px; height: 20px; display: block; }
/* show the muted icon by default; swap to the on icon when active */
.genesis__sound .icon-on { display: none; }
.genesis__sound .icon-off { display: block; }
.genesis__sound.is-on .icon-on { display: block; }
.genesis__sound.is-on .icon-off { display: none; }

@media (max-width: 540px) {
  .genesis__sound { width: 36px; height: 36px; bottom: 10px; right: 10px; }
  .genesis__sound svg { width: 17px; height: 17px; }
}