* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html,
body {
  min-height: 99%;
}
body {
  font-family: Arial, sans-serif;
  background-color: #faf8ef;
  display: flex;
  justify-content: center;
  min-height: 99%;
}

.container {
  width: 100%;
  max-width: 500px;
  padding: 1rem;
}

h1 {
  font-size: 3rem;
  color: #776e65;
  margin-bottom: 1rem;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.score-container {
  background: #bbada0;
  padding: 0.5rem 1.5rem;
  border-radius: 3px;
  color: white;
  font-size: 1.2rem;
}

#new-game {
  background: #8f7a66;
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 3px;
  cursor: pointer;
  font-size: 1rem;
}

#new-game:hover {
  background: #7f6a56;
}

.game-container {
  background: #bbada0;
  padding: 1rem;
  border-radius: 6px;
  position: relative;
}

.grid-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-gap: 1rem;
  position: relative;
}

.grid-cell {
  background: rgba(238, 228, 218, 0.35);
  aspect-ratio: 1;
  border-radius: 3px;
}

#tile-container {
  position: absolute;
  top: 1rem;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
}

.tile {
  position: absolute;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 2rem;
  font-weight: bold;
  border-radius: 3px;
  transition: all 0.15s ease-in-out;
  background: #eee4da;
  color: #776e65;
}

.tile[data-value='2'] {
  background: #eee4da;
}
.tile[data-value='4'] {
  background: #ede0c8;
}
.tile[data-value='8'] {
  background: #f2b179;
  color: #f9f6f2;
}
.tile[data-value='16'] {
  background: #f59563;
  color: #f9f6f2;
}
.tile[data-value='32'] {
  background: #f67c5f;
  color: #f9f6f2;
}
.tile[data-value='64'] {
  background: #f65e3b;
  color: #f9f6f2;
}
.tile[data-value='128'] {
  background: #edcf72;
  color: #f9f6f2;
  font-size: 1.8rem;
}
.tile[data-value='256'] {
  background: #edcc61;
  color: #f9f6f2;
  font-size: 1.8rem;
}
.tile[data-value='512'] {
  background: #edc850;
  color: #f9f6f2;
  font-size: 1.8rem;
}
.tile[data-value='1024'] {
  background: #edc53f;
  color: #f9f6f2;
  font-size: 1.5rem;
}
.tile[data-value='2048'] {
  background: #edc22e;
  color: #f9f6f2;
  font-size: 1.5rem;
}