#config-overlay {
  text-align: center;
}

#config-overlay h2 {
  margin: 0.5rem 0;
}

.form-control {
  margin: 0.5rem 0;
}

.form-control label {
  display: block;
  margin-top: 1rem;
  font-weight: 700;
}

.form-control input {
  font: inherit;
  border: 1px solid hsl(0, 0%, 75%);
  margin-top: 0.5rem;
  width: 15rem;
  padding: 0.35rem;
}

#config-errors {
  margin-bottom: 1.5rem;
  color: hsl(0, 90%, 50%);
  font-weight: 700;
}

#new-game-error {
  margin: 1rem;
  padding: 1rem;
  color: hsl(0, 90%, 50%);
  font-size: 1rem;
  background-color: hsl(0, 75%, 90%);
  box-shadow: 0 1px 4px hsla(0, 0%, 0%, 0.2);
  border: 2px solid hsl(0, 90%, 50%);
  border-radius: 0.25rem;
  -webkit-border-radius: 0.25rem;
  -moz-border-radius: 0.25rem;
  -ms-border-radius: 0.25rem;
  -o-border-radius: 0.25rem;
  display: none;
}

.error input {
  border-color: hsl(0, 90%, 50%);
  background-color: hsl(0, 75%, 90%);
}

#game-configuration {
  width: 90%;
  max-width: 40rem;
  margin: 1.5rem auto 3rem auto;
  text-align: center;
}

#game-configuration ol {
  list-style: none;
  display: flex;
}

#game-configuration li {
  margin: 1rem;
  padding: 1rem;
  width: 50%;
  background-color: hsl(0, 0%, 95%);
  box-shadow: 0 1px 4px hsla(0, 0%, 0%, 0.2);
  border-radius: 0.25rem;
  -webkit-border-radius: 0.25rem;
  -moz-border-radius: 0.25rem;
  -ms-border-radius: 0.25rem;
  -o-border-radius: 0.25rem;
}

#game-configuration h2 {
  font-size: 1rem;
  margin: 0.5rem 0;
}

#game-configuration h3 {
  margin: 1.5rem 0;
  font-size: 1.5rem;
  color: hsl(258, 54%, 33%);
}

.player-symbol {
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: hsl(258, 54%, 33%);
  border: 2px solid hsl(258, 54%, 33%);
  border-radius: 0.15rem;
  -webkit-border-radius: 0.15rem;
  -moz-border-radius: 0.15rem;
  -ms-border-radius: 0.15rem;
  -o-border-radius: 0.15rem;
  width: 6rem;
  height: 6rem;
  font-size: 2.5rem;
  margin: 0.5rem auto;
}

.player-symbol i {
  color: hsl(0, 0%, 90%);
}

#game-configuration button {
  margin: 1rem;
}