* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
:root {
  font-size: 62.5%;
  --bg-color: #121214;
  --text-color: #fff;

  --base-color: 194;
  --primary-color: hsl(var(--base-color), 100%, 63%);
  --bg-primary-color: hsla(var(--base-color), 100%, 63%, 0.13)
}
body {
  color: var(--text-color);
  font-family: 'Roboto', sans-serif;
  background-color: var(--bg-color);
  font-weight: bold;

  min-height: 100vh;
  display: grid;
}

main {
  justify-self: center;
  align-self: end;
}
button {
  background: transparent;
  border: none;
  cursor: pointer;
}
p {
  font-size: 1.4rem;
}
a {
  color: white;
  text-decoration: none;
}
#timer {
  font-size: clamp(5rem, 5rem + 5vw, 8.8rem);
  display: flex;
  margin-bottom: 1.6rem;
}
#controls {
  background-color: var(--bg-primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 9999px;
  
  gap: 3.2rem;
  
  width: clamp(14rem, 14rem + 5vw, 22.8rem);
  height: clamp(8rem, 5rem + 5vw, 10.8rem);
}

button svg {
  width: clamp(3.2rem, 3.2rem + 5vw, 6.4rem);
}
.play svg path,
.pause svg path,
.sound-on svg path {
  fill: var(--primary-color);
}
.sound-off,
.sound-on,
.sound-off hide,
.sound-on hide {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
}
.hide {
  display: none;
}
footer {
  display: flex;
  justify-content: center;
  align-self: flex-end;
  padding: 0 4rem 3.2rem 4rem;
  width: 100vw;
}