body {
    font-family: 'Roboto', sans-serif;
    font-size: 14px;
    max-width: 960px;
    margin: auto;
    background-color: #f9f9f9;
    color: #333;
}

header {
    text-align: center;
    margin: auto 2em;
    padding: 2em 0;
    background-color: #004f9f;
    color: white;
}

.profile-picture {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1em;
}

h1 {
    font-size: 2.5em;
    letter-spacing: .1em;
    margin-bottom: 0.5em;
}

h2 {
    font-size: 1.5em;
    margin-bottom: 0.5em;
}

h3 {
    font-size: 1.2em;
    margin-bottom: 0.5em;
}

p, ul {
    margin: 0.5em 0;
    line-height: 1.6;
}

a {
    color: #004f9f;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

main { 
    display: flex;
    margin-top: 2em;
}

article {
    flex: 1;
    padding: 2em;
}

#mainLeft {
    border-right: 1px solid lightgray;
}

i {
    margin-right: .5em;
}

section {
    margin-bottom: 2em;
}

ul {
    padding-left: 1.5em;
}

ul li {
    list-style-type: disc;
}

hr {
    border: none;
    height: 1px;
    background-color: white;
    margin: 1em auto;
}

section h2 {
    border-bottom: 2px solid #004f9f;
    padding-bottom: 0.3em;
}

@media (max-width: 768px) {
    main {
        flex-direction: column;
    }

    #mainLeft {
        border-right: none;
    }
}