header {
  width: 90vw;
  text-align: center;
  margin: auto;
}

header p {
  font-size: 14pt;
}

header .code {
  color: #f44;
  background: #e0e0e0;
  font-family: monospace;
  padding: 4px;
}

.App {
  text-align: center;
}

.App-controls {
    width: 100%;
    display: flex;
    justify-content: space-around;
    padding: 24px;
    box-sizing: border-box;
}

.App-counters {
    display: flex;
    width: 620px;
    margin: auto;
    flex-flow: row wrap;
    align-items: center;
    justify-content: space-around;
}

.Counter {
    display: flex;
    width: 128px;
    height: 128px;
    flex-flow: column wrap;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
}

.Counter-amount {
    display: block;
    font-size: 128px;
    line-height: 128px;
}

button {
    background: #774aa4;
    border: 1px solid #694191;
    color: white;
    font-size: 32px;
    cursor: pointer;
    border-radius: 6px;
}

button:hover {
    filter: brightness(130%);
}
button:active {
    filter: brightness(110%) hue-rotate(40deg);
}

.Counter-button {
    flex: 1 1 auto;
    margin: 4px;
    height: 48px;
    width: 52px;
    box-sizing: border-box;
}
