* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
}

body {
  background: #050505;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.hero {
  position: relative;
  width: 100%;
  min-height: 100vh;
  overflow: hidden;
  background: #050505;
}

.hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
}

.sound-toggle {
  position: fixed;
  z-index: 5;
  top: clamp(18px, 4vw, 54px);
  left: clamp(18px, 4vw, 58px);
  width: clamp(72px, 9vw, 112px);
  height: clamp(72px, 9vw, 112px);
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: transparent;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  filter: drop-shadow(0 8px 20px rgba(0, 0, 0, .35));
  transition: transform .2s ease, filter .2s ease;
}

.sound-toggle:hover,
.sound-toggle:focus-visible {
  transform: scale(1.04);
  filter: drop-shadow(0 10px 24px rgba(0, 0, 0, .45));
  outline: none;
}

.sound-toggle:focus-visible::before {
  content: "";
  position: absolute;
  inset: -7px;
  border: 2px solid rgba(255, 255, 255, .85);
  border-radius: inherit;
}

.sound-toggle img {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  user-select: none;
  pointer-events: none;
}

.sound-toggle__badge {
  position: absolute;
  right: -2px;
  bottom: -2px;
  display: grid;
  place-items: center;
  width: clamp(27px, 3.2vw, 38px);
  height: clamp(27px, 3.2vw, 38px);
  border: 2px solid rgba(255, 255, 255, .92);
  border-radius: 999px;
  color: white;
  background: rgba(0, 0, 0, .68);
  backdrop-filter: blur(8px);
  font-size: clamp(14px, 1.8vw, 20px);
  line-height: 1;
}

.sound-toggle__icon {
  grid-area: 1 / 1;
  transition: opacity .18s ease, transform .18s ease;
}

.sound-toggle__icon--on {
  opacity: 0;
  transform: scale(.75);
  font-size: .72em;
  letter-spacing: -0.12em;
}

.sound-toggle.is-playing .sound-toggle__icon--off {
  opacity: 0;
  transform: scale(.75);
}

.sound-toggle.is-playing .sound-toggle__icon--on {
  opacity: 1;
  transform: scale(1);
}

.sound-toggle.is-playing::after {
  content: "";
  position: absolute;
  inset: -8px;
  border: 1px solid rgba(255, 255, 255, .55);
  border-radius: inherit;
  animation: soundPulse 1.8s ease-out infinite;
}

.autoplay-fallback {
  position: fixed;
  z-index: 10;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(0, 0, 0, .35);
}

.autoplay-fallback button {
  border: 1px solid rgba(255, 255, 255, .75);
  border-radius: 999px;
  padding: 14px 22px;
  color: white;
  background: rgba(0, 0, 0, .62);
  font: inherit;
  cursor: pointer;
  backdrop-filter: blur(8px);
}

@keyframes soundPulse {
  0% {
    opacity: .75;
    transform: scale(.94);
  }
  100% {
    opacity: 0;
    transform: scale(1.32);
  }
}

@media (max-width: 640px) {
  .sound-toggle {
    top: max(18px, env(safe-area-inset-top));
    left: max(18px, env(safe-area-inset-left));
  }
}