styles.scss

html {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.5;
  font-size: 105%;
}

body {
  background-color: whitesmoke;
  text-align: center;
  margin: 2rem 1rem;
}

a {
  color: inherit;
  text-underline-position: under;
}

button {
  font: inherit;
  color: inherit;
  box-shadow: 0 0.05rem 0.1rem rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(0, 0, 0, 0.1);
  padding: 0.5rem 1rem;
  background-color: #fff;
  border-radius: 2rem;
  &.active--true, &.active--false {
    margin-bottom: 5rem;
  }
  &.active--false {
    background-color: darkslateblue;
    color: #fff;
  }
  &.mine--false {
    display: none !important;
  }
}

footer button {
  border: none;
  padding: 0.25rem 0.5rem;
  margin-right: 1rem;
}

section {
  margin: 5rem 0 1rem 0;
}

p {
  font-size: 200%;
  margin: 0 auto;
  max-width: 500px;
}

select {
  font: inherit;
  background-color: #fff;
  color: inherit;
  height: 2rem;
  margin-left: 0.5rem;
  display: inline-block;
  border: 1px solid rgba(0, 0, 0, 0.25);
}

@media (prefers-color-scheme: dark) {
  body {
    background-color: rgb(10, 10, 10);
    color: rgba(255, 255, 255, 0.9);
  }
  button, select {
    background-color: rgba(255, 255, 255, 0.1);
  }
}