* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background-color: #faf8ef;
    color: #776e65;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    text-align: center;
}

h1 {
    font-size: 48px;
    font-weight: bold;
    color: #776e65;
    margin-bottom: 20px;
}

.score-container {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
}

.score, .best {
    background-color: #bbada0;
    padding: 10px 20px;
    border-radius: 5px;
    color: white;
    font-weight: bold;
}

.score span, .best span {
    display: block;
}

.score span:first-child, .best span:first-child {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.score span:last-child, .best span:last-child {
    font-size: 24px;
    margin-top: 5px;
}

.game-container {
    position: relative;
    background-color: #bbada0;
    border-radius: 10px;
    padding: 10px;
    margin: 0 auto;
    width: 350px;
    height: 350px;
}

.grid-container {
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
}

.grid-row {
    display: flex;
    margin-bottom: 10px;
}

.grid-row:last-child {
    margin-bottom: 0;
}

.grid-cell {
    width: 75px;
    height: 75px;
    background-color: #cdc1b4;
    border-radius: 5px;
    margin-right: 10px;
}

.grid-cell:last-child {
    margin-right: 0;
}

.tile-container {
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
}

.tile {
    position: absolute;
    width: 75px;
    height: 75px;
    border-radius: 5px;
    font-size: 32px;
    font-weight: bold;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.2s ease-in-out;
}

.tile-2 { background-color: #eee4da; color: #776e65; }
.tile-4 { background-color: #ede0c8; color: #776e65; }
.tile-8 { background-color: #f2b179; color: #f9f6f2; }
.tile-16 { background-color: #f59563; color: #f9f6f2; }
.tile-32 { background-color: #f67c5f; color: #f9f6f2; }
.tile-64 { background-color: #f65e3b; color: #f9f6f2; }
.tile-128 { background-color: #edcf72; color: #f9f6f2; font-size: 28px; }
.tile-256 { background-color: #edcc61; color: #f9f6f2; font-size: 28px; }
.tile-512 { background-color: #edc850; color: #f9f6f2; font-size: 28px; }
.tile-1024 { background-color: #edc53f; color: #f9f6f2; font-size: 24px; }
.tile-2048 { background-color: #edc22e; color: #f9f6f2; font-size: 24px; }

.tile-position-0-0 { left: 0px; top: 0px; }
.tile-position-0-1 { left: 85px; top: 0px; }
.tile-position-0-2 { left: 170px; top: 0px; }
.tile-position-0-3 { left: 255px; top: 0px; }
.tile-position-1-0 { left: 0px; top: 85px; }
.tile-position-1-1 { left: 85px; top: 85px; }
.tile-position-1-2 { left: 170px; top: 85px; }
.tile-position-1-3 { left: 255px; top: 85px; }
.tile-position-2-0 { left: 0px; top: 170px; }
.tile-position-2-1 { left: 85px; top: 170px; }
.tile-position-2-2 { left: 170px; top: 170px; }
.tile-position-2-3 { left: 255px; top: 170px; }
.tile-position-3-0 { left: 0px; top: 255px; }
.tile-position-3-1 { left: 85px; top: 255px; }
.tile-position-3-2 { left: 170px; top: 255px; }
.tile-position-3-3 { left: 255px; top: 255px; }

.game-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: rgba(255, 255, 255, 0.9);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    display: none;
}

.game-message.show {
    display: block;
}

.game-message p {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 20px;
}

.game-message button {
    background-color: #8f7a66;
    color: white;
    border: none;
    padding: 10px 20px;
    font-size: 16px;
    border-radius: 5px;
    cursor: pointer;
}

.game-message button:hover {
    background-color: #9f8a76;
}