* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
}
body, html {
    height: 100%;
    background-color: #f0f8ff;
}
#game-container {
    max-width: 960px;
    margin: 20px auto;
    padding: 20px;
    background-color: #d0eaff;
    border-radius: 10px;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.2);
    text-align: center;
}
h1 {
    margin-bottom: 15px;
    color: #0a3d62;
}
#score-board {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: #2d3436;
}
#game-area {
    position: relative;
    background-color: #81ecec;
    height: 300px;
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
}
#start-btn {
    padding: 10px 20px;
    font-size: 1rem;
    border: none;
    border-radius: 5px;
    background-color: #0984e3;
    color: white;
    cursor: pointer;
    transition: background-color 0.3s ease;
}
#start-btn:hover {
    background-color: #74b9ff;
}
.mouse {
    position: absolute;
    width: 50px;
    height: 50px;
    background-image: url('https://cdn-icons-png.flaticon.com/512/616/616408.png');
    background-size: contain;
    background-repeat: no-repeat;
    cursor: pointer;
    user-select: none;
    border-radius: 50%;
    /* border: thick double #270000; */
    border: solid 2px black;
}

/* Responsive styles for various screen sizes */

/* Smallest devices (up to 320px wide) */
@media only screen and (max-width: 320px) {
    #game-container {
        margin: 10px;
        padding: 15px;
    }
    #game-area {
        height: 280px;
    }
    .mouse {
        width: 35px;
        height: 35px;
    }
    #start-btn {
        font-size: 0.8rem;
        padding: 8px 16px;
    }
}

/* Small TVs and small screens (up to 480px) */
@media only screen and (max-width: 480px) {
    #game-area {
        height: 220px;
    }
    .mouse {
        width: 40px;
        height: 40px;
    }
    #start-btn {
        font-size: 0.9rem;
    }
}

/* Medium TVs and tablets (481px to 768px) */
@media only screen and (min-width: 481px) and (max-width: 768px) {
    #game-area {
        height: 280px;
    }
    .mouse {
        width: 45px;
        height: 45px;
    }
}

/* Large TVs (769px to 1200px) */
@media only screen and (min-width: 769px) and (max-width: 1200px) {
    #game-area {
        height: 320px;
    }
    .mouse {
        width: 55px;
        height: 55px;
    }
}

/* Largest TVs (1201px and larger) */
@media only screen and (min-width: 1201px) {
    #game-area {
        height: 400px;
    }
    .mouse {
        width: 70px;
        height: 70px;
    }
}