/* =========================================================
   HEENESIS — control de sonido
   ========================================================= */

.sound {
  position: fixed;
  z-index: 40;
  top: max(16px, env(safe-area-inset-top));
  right: 16px;
  display: flex;
  flex-direction: row-reverse;
  align-items: center;
  gap: 10px;
}

.sound__btn {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--glass-line);
  background: var(--glass);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  color: var(--ink-dim);
  transition: color .4s, border-color .4s, box-shadow .4s;
}
.sound__btn:hover, .sound__btn:focus-visible, .sound.is-open .sound__btn {
  color: var(--ink);
  border-color: rgba(var(--energy-rgb), .42);
  box-shadow: 0 0 20px rgba(var(--energy-rgb), .16);
  outline: none;
}

.sound__wave, .sound__slash { transition: opacity .4s; }
.sound__slash { opacity: 0; }
.sound[data-level="off"]  .sound__wave { opacity: .25; }
.sound[data-level="low"]  .sound__wave--2 { opacity: .25; }
.sound[data-level="mute"] .sound__wave { opacity: 0; }
.sound[data-level="mute"] .sound__slash { opacity: 1; }
.sound[data-level="high"] .sound__wave--1 { animation: wave 3.2s ease-in-out infinite; }
.sound[data-level="high"] .sound__wave--2 { animation: wave 3.2s .4s ease-in-out infinite; }
@keyframes wave { 0%, 100% { opacity: .55; } 50% { opacity: 1; } }

.sound__panel {
  height: 42px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 16px 0 14px;
  border-radius: 21px;
  border: 1px solid var(--glass-line);
  background: rgba(6, 14, 24, .5);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  opacity: 0;
  visibility: hidden;
  transform: translateX(10px);
  transition: opacity .45s var(--ease-soft), transform .5s var(--ease-soft), visibility 0s linear .5s;
}
.sound.is-open .sound__panel {
  opacity: 1;
  visibility: visible;
  transform: none;
  transition: opacity .45s var(--ease-soft), transform .5s var(--ease-soft), visibility 0s;
}

.sound__mute {
  font-size: .58rem;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--ink-faint);
  transition: color .3s;
}
.sound__mute:hover, .sound__mute:focus-visible { color: var(--ink); outline: none; }
.sound[data-level="mute"] .sound__mute { color: var(--energy); }

.sound__range {
  --val: 55%;
  -webkit-appearance: none;
  appearance: none;
  width: clamp(90px, 26vw, 130px);
  height: 18px;
  margin: 0;
  background: transparent;
  cursor: pointer;
}
.sound__range::-webkit-slider-runnable-track {
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, rgba(var(--energy-rgb), .85) var(--val), rgba(255, 255, 255, .16) var(--val));
}
.sound__range::-moz-range-track {
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, rgba(var(--energy-rgb), .85) var(--val), rgba(255, 255, 255, .16) var(--val));
}
.sound__range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px; height: 12px;
  margin-top: -5px;
  border-radius: 50%;
  background: var(--pearl);
  box-shadow: 0 0 10px rgba(var(--energy-rgb), .8);
}
.sound__range::-moz-range-thumb {
  width: 12px; height: 12px;
  border: 0;
  border-radius: 50%;
  background: var(--pearl);
  box-shadow: 0 0 10px rgba(var(--energy-rgb), .8);
}
.sound__range:focus { outline: none; }

.sound__value {
  min-width: 2ch;
  font-size: .62rem;
  letter-spacing: .1em;
  color: var(--ink-faint);
  font-variant-numeric: tabular-nums;
}

@media (max-width: 420px) {
  .sound__value { display: none; }
}