body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f4f4;
    color: #333;
    margin: 0;
    padding: 0;
}

h1 {
    text-align: center;
    margin-top: 40px;
    font-size: 2.5em;
    color: #2c3e50;
}

h3 {
    text-align: center;
    margin: 30px auto;
    max-width: 900px;
    font-weight: normal;
    line-height: 1.6;
    color: #444;
    background-color: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

img, video {
    display: block;
    margin: 30px auto;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    transition: transform 0.3s ease;
}

img:hover, video:hover {
    transform: scale(1.03);
}

video {
    max-width: 90%;
    height: auto;
}

@media (max-width: 600px) {
    h1 {
        font-size: 1.8em;
    }

    h3 {
        font-size: 1em;
        padding: 15px;
    }

    img, video {
        width: 90%;
        height: auto;
    }
}