body {
    font-family: serif;
    margin: 0;
    padding: 20px;
    background-color: #ffffff;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh; 
    box-sizing: border-box;
}

.container {
    width: 90%;
    max-width: 960px;
    background-color: #ffffff;
    padding: 30px;
    text-align: center;
    box-sizing: border-box;
}

header h1 {
    color: #333;
    margin-bottom: 20px;
    font-size: 2.5em;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex; 
    justify-content: center; 
    flex-wrap: wrap;
}

nav ul li {
    margin: 0 15px;
}

nav ul li a {
    text-decoration: none;
    color: #000000;
    font-weight: bold;
    padding: 5px 0;
    display: block;
    transition: color 0.3s ease;
}

nav ul li a:hover {
    color: #0056b3;
}

a {
    color: black;
}

a:visited {
    color: black;
}

a:hover {
    transition: color 0.3s ease;
    color: #0056b3;
}

main {
    margin-top: 30px;
    line-height: 1.6;
    text-align: left; 
}

main p {
    margin-bottom: 15px;
    line-height: 22px;
    color: #0000000;
}

main img {
    float: center;
    margin-right: 20px;
    margin-bottom: 10px;
    height: auto;
    width: 100%;
}

#alex {    
    float: left;
    margin-right: 20px;
    margin-bottom: 10px;
    max-width: 100%;
    height: auto;
    width: 200px;
}

#az {
    width: 100%;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2em; 
    }

    nav ul li {
        margin: 5px 10px;
    }

    .container {
        padding: 20px; 
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.8em;
    }

    nav ul {
        flex-direction: column;
        align-items: center;
    }

    nav ul li {
        margin: 5px 0;
    }

    .container {
        padding: 15px;
        width: 95%;
    }
}