html, body {
  height: 100vh;
  background-color: black;
  overflow: hidden;
  font-family: "Noto Sans", sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

canvas {
  height: 100vh;
  width: 100vw;
  position: relative;
  z-index: 9;
}

#logo {
  display: flex;
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 4;
  opacity: 0.08;
  white-space: nowrap;
  pointer-events: none;
}

#logo > img {
  height: 3.2vmin;
}

#background-image,
#background-filter {
  height: 100%;
  width: 100%;
  position: fixed;
  top: 0px;
  left: 0px;
}
  
#background-image {
  z-index: 1;
  background-image: url("https://assets.codepen.io/1468070/Lofi+Rainy+Loft+Interior.jpg?format=webp&quality=90");
  background-size: cover;
  background-position: center;
  opacity: 0.6;
  filter: blur(4px) grayscale(30%);
}

#background-filter {
  z-index: 2;
  background: radial-gradient(rgb(0 0 0 / 60%) 50%, transparent);
}

#control-bar-wrapper {
  width: 100%;
  display: flex;
  justify-content: center;
  position: fixed;
  top: 0px;
  left: 0px;
  z-index: 10;
  padding: 0.5rem;
}

.toggle {
  background-color: rgb(255 255 255 / 10%);
  backdrop-filter: blur(5px);
  padding: 0.5rem;
  border-radius: 0.25rem;
  height: 2rem;
  border: none;
  outline: none;
  cursor: pointer;
}

.toggle:is(:hover, :focus-visible) {
  background-color: rgb(255 255 255 / 15%);
}

.toggle > i {
  color: white;
  display: none;
  height: 1rem;
  width: 1rem;
  font-size: 0.6rem;
  line-height: 1rem;
  text-align: center;
}

.toggle[data-toggled="true"] > i.on {
  display: block;
}

.toggle[data-toggled="false"] > i.off {
  display: block;
}

#sound-message {
  position: fixed;
  top: 36%;
  left: 50%;
  translate: -50% -50%;
  z-index: 3;
  padding: 0.75rem;
  background-color: rgb(255 255 255 / 5%);
  border-radius: 0.4rem;
  transition: opacity 1000ms;
  pointer-events: none;
}

body:has(#sound-toggle[data-toggled="true"]) #sound-message {
  opacity: 0;
}

#sound-message > p {
  color: white;
  font-size: 0.9rem;
  white-space: nowrap;
}