:root {
  --bg: #fff;
  --fg: #111;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #151515;
    --fg: #e4e4e4;
  }
}

* {
  margin: 0 auto;
  line-height: 1.5em;
  text-align: center;
  width: 100%;
  font-family: sans-serif;
}

h1 {
  margin-top: 0.5em;
  margin-bottom: 1em;
}

h1,
h2 {
  font-weight: normal;
}

body {
  background: var(--bg);
  color: var(--fg);
}

.container {
  max-width: 95%;
  display: grid;
  row-gap: 1em;
  column-gap: 2%;
  grid-auto-rows: 5.15em;
}

@media only screen and (min-width: 570px) {
  .container {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media only screen and (min-width: 870px) {
  .container {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media only screen and (min-width: 1280px) {
  .container {
    max-width: 1216px;
  }
}

.sound:hover {
  color: var(--bg);
  background: var(--fg);
}

.sound {
  border: 2px solid var(--fg);
  cursor: pointer;
  box-sizing: border-box;
  padding: 0.2em;
  display: flex;
  align-items: center;
}

audio {
  display: none;
}