body {
    font-family: Arial, sans-serif;
    margin: 0;
    background-color: #e0ffff;
    touch-action: manipulation;
}

.container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    text-align: center;
}

@media (max-width: 768px) {
    .container {
        min-height: 100%;
    }
}

#game-screen {
    position: relative;
    width: 400px;
    height: 300px;
    background-color: #fff;
    border: 1px solid #ccc;
    margin-top: 20px;
}

@media (max-width: 768px) {
    #game-screen {
        width: 100vw;
        height: 80vh;
    }
}

#target {
    position: absolute;
    width: 50px;
    height: 50px;
    background-color: #f08080;
    border-radius: 50%;
    cursor: pointer;
    animation: breathe 1s infinite alternate;
}

@keyframes breathe {
    0% {
        transform: scale(1);
    }
    100% {
        transform: scale(1.2);
    }
}

.particle {
    position: absolute;
    width: 10px;
    height: 10px;
    background-color: #f08080;
    border-radius: 50%;
    pointer-events: none;
}