body {
  background-color: rgb(24, 24, 24);
  color: rgb(151, 99, 246);

  font-family: "Courier New", Courier, monospace;
}

input {
  background-color: rgb(24, 24, 24);
  color: rgb(151, 99, 246);
  border: 2px solid rgb(151, 99, 246);
  padding: 5px;
}

table,
th,
td {
  border: 2px solid rgb(151, 99, 246);
  border-collapse: collapse; /* prevents double borders */
}

th,
td {
  padding: 8px 12px;
  text-align: center;
}

.layout {
  display: flex;
  width: 100%;
}

.layout > div {
  flex: 1;
  min-width: 0;
  padding: 5px;
  border: 2px solid rgb(151, 99, 246);

  display: flex;
  flex-direction: column; /* keep elements stacked */
  align-items: center; /* horizontal center */
}