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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #faf8ef;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    text-align: center;
    padding: 20px;
}

h1 {
    color: #776e65;
    margin-bottom: 10px;
}

.score-board {
    background-color: #bbada0;
    padding: 10px;
    border-radius: 5px;
    display: inline-block;
    margin-bottom: 20px;
}

.score {
    color: #f9f6f2;
    font-size: 18px;
}

.game-board {
    width: 400px;
    height: 400px;
    background-color: #bbada0;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(4, 1fr);
    gap: 10px;
    padding: 10px;
    border-radius: 5px;
    margin: 0 auto 20px;
}

.tile {
    width: 100%;
    height: 100%;
    background-color: #cdc1b4;
    border-radius: 5px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    font-weight: bold;
    color: #776e65;
    transition: all 0.2s ease-in-out;
}

.controls {
    display: flex;
    flex-direction: column;
    align-items: center;
}

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

button:hover {
    background-color: #7a6655;
}

.instructions {
    color: #776e65;
    font-size: 14px;
}

/* Tile colors */
.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; }
.tile-256 { background-color: #edc860; color: #f9f6f2; }
.tile-512 { background-color: #edc550; color: #f9f6f2; }
.tile-1024 { background-color: #edc240; color: #f9f6f2; }
.tile-2048 { background-color: #edbf30; color: #f9f6f2; }