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

body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #87CEEB;
    font-family: Arial, sans-serif;
}

.game-container {
    position: relative;
    width: 400px;
    height: 600px;
    overflow: hidden;
    border: 3px solid #333;
    border-radius: 5px;
}

#game-canvas {
    background-color: #87CEEB;
    width: 100%;
    height: 100%;
}

.score-container {
    position: absolute;
    top: 20px;
    left: 0;
    width: 100%;
    text-align: center;
    z-index: 10;
}

.score {
    display: inline-block;
    padding: 5px 10px;
    background-color: rgba(0, 0, 0, 0.5);
    color: white;
    border-radius: 5px;
    font-size: 24px;
    font-weight: bold;
}

.game-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    z-index: 20;
}

.game-message p {
    margin: 10px 0;
}