body {
  background-color: #37627a;
  color: #f6ede1;
  font-family: Arial, Helvetica, sans-serif;
}

header {
  height: 5rem;
}

header section {
  width: 100vw;
  height: 100vh;
}

h1 {
  text-align: center;
  padding: .5rem 0;
  margin: 0;
}

h2 {
  text-align: center;
  margin: 1.5rem 0;
}

button {
  padding: 1rem;
}

input:focus {
  outline: #ffc107 solid 2px;
}

.hidden {
  display: none;
}

/* Name Input Screen */

#name-input-screen {
  text-align: center;
}

#name-input-screen h2 {
  margin: 2rem 0;
}

#name-input-screen input {
  margin: 1rem 0;
  padding: 1rem;
}

#name-input-screen button {
  padding: 1rem;
  margin: 0 0 0 0.5rem;
}

/* Level Selection Screen */

#level-selection-screen {
  text-align: center;
}

#level-selection-screen h2 {
  margin: 0 0 3rem 0;
}

#level-selection-screen button {
  padding: 3rem 1rem;
}

/* Game Screen */

#game-screen {
  padding: 2rem 1rem 0 1rem;
  display: flex;
  flex-direction: row;
}

#game-screen #metrics-column {
  width: 20%;
  padding: 0 1rem;
}

#game-screen #cards {
  display: grid;
}

#game-screen #cards img {
  display: block;
  padding: 1rem;
  max-width: 100%;
  max-height: 40vh;
  border-radius: 10%;
}

#cards.cards-8 {
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(2, 1fr);
}

#cards.cards-12 {
  grid-template-columns: repeat(6, 1fr);
  grid-template-rows: repeat(2, 1fr);
}

#cards.cards-18 {
  grid-template-columns: repeat(6, 1fr);
  grid-template-rows: repeat(3, 1fr);
}
#game-screen #cards.cards-18 img {
  max-height: 29vh;
}

#game-screen p {
  padding-top: 1rem;
}

#game-screen .three-buttons {
  margin-top: 3rem;
}

#game-screen button {
  margin: 0.5rem;
}

/* Congrats Screen */

#congrats-screen {
  text-align: center;
}

#congrats-screen h2 {
  margin: 0 0 3rem 0;
}