body {
    margin: 0;
    overflow: hidden;
    font-family: Arial, sans-serif;
    background: linear-gradient(to top, #87ceeb, #ffffff);
}

#header {
    text-align: center;
    padding: 10px;
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

#header h1 {
    margin: 0;
    font-size: 24px;
    color: #333;
}

#header p {
    margin: 0;
    font-size: 18px;
    color: #666;
}

#gameArea {
    height: calc(100vh - 60px); 
}


#gameArea {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
}

#scoreBoard {
    position: absolute;
    top: 10px;
    left: 10px;
    font-size: 24px;
    color: #333;
}

.balloon {
    position: absolute;
    width: 50px;
    height: 80px;
    background-color: #ff6347;
    border-radius: 50% 50% 50% 50% / 80% 80% 20% 20%;
    cursor: pointer;
    animation: rise linear infinite;
}

@keyframes rise {
    0% { top: 100vh; }
    100% { top: -100px; }
}