/* CSS Resets */
h1, h2, h3, h4, p, nav ul {
    padding: 0;
    margin: 0;
}
nav ul {
    list-style-type: none;
}
img { max-width: 100%; display: block; }
* { box-sizing: border-box; }

/* end Resets */

body {
    font-family: Arial, Helvetica, sans-serif;
    color: #2C2F33; 
    background-color: #F4F4F4; 
    padding: 0 20px;
}

header, footer {
    background-color: #34496E; 
    padding: 20px;
    color: white;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2); 
}

main {
    padding: 20px;
    background-color: #ffffff; 
    border-radius: 8px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1); 
    margin-bottom: 20px;
}

.container {
    max-width: 1000px;
    margin: auto;
}

h1, h2 {
    margin-bottom: .5em;
    color: #1ABC9C; 
}

p {
    line-height: 1.6em;
    margin-bottom: 1em;
    color: #4A69A5; 
}

a {
    text-decoration: none;
    font-weight: bold;
    color: #D4B483; 
}

a:hover {
    color: #1ABC9C; 
}

ul li {
    margin-bottom: 1em;
}

img {
    margin-bottom: 20px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); 
}

aside {
    background-color: #2C2F33; 
    padding: 20px;
    color: white;
    border-radius: 8px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1); 
    margin-bottom: 20px;
}

aside img {
    border-radius: 50%;
    margin-left: auto;
    margin-right: auto;
    width: 200px;
}

@media only screen and (min-width: 600px) {
    .container{ 
        display: flex;
        flex-wrap: wrap;
    }
    header, footer {
        width: 100%;
    }
    main { flex: 2; }
    aside { flex: 1; }
}

@media only screen and (min-width: 800px) {
    .container{ margin: auto; }
    main { display: flex; }
    main div { flex: 1; }
}