html, body {
  margin: 0;
  height: 100%;
  font-family: 'Open Sans', sans-serif;
}

#root {
  height: 100%;
}

.app {
  height: 100%;
  box-sizing: border-box;

  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;

  font-size: 18px;
  line-height: 27px;

  background-color: var(--bg-color);
  color: var(--main-color);
}

.app > main {
  flex: 1 1 auto;

  height: 100%;
  width: 100%;
  box-sizing: border-box;
}
@media (min-width: 800px) {
  .app > main {
    height: 90%;
    max-height: 90%;

    max-width: 800px;
  }
}

/* Common */

a {
  border-bottom: 2px solid currentColor;
  color: inherit;
  text-decoration: none;
}

a:focus {
  background-color: hsl(0, 0%, 0%, 0.1);
}

/* Dirty views */

.app > main.home {
  padding: var(--inner-padding);
  max-height: unset;
  height: 200%;
}

.home input,
.home select {
  padding: 4px 8px;
  color: var(--main-color);
  background-color: var(--bg-color);
  border: 2px solid var(--main-color);
  outline-offset: 0;
  font: inherit;
}

.home summary {
  display: inline-block;
  padding-right: 4px;
  cursor: pointer;
}

.home details > ul {
  border-left: 4px solid currentColor;
}

.home .play label {
  display: block;
  margin-bottom: 16px;
}

.home .play input {
  box-sizing: border-box;
  width: 100%;
  max-width: 400px;
}