:root {
    --accent-color:charcoal;
}

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
}

body {
    font-family: "Times New Roman", sans-serif;
    background-color: #charcoal;
    color: #333;
    
}

header {
    background-color: lightblue;
    color: charcoal;
    padding: 40px 0px 0px 0px;
    text-align: center;
    position: relative;
}

header img {
    border-radius: 50%;
    width: 170px;
    height: 170px;
    object-fit: cover;
}

header h1 {
    margin: 10px 0;
    font-size: 2.5rem;
}

header h2 {
    margin: 10px 0;
    font-size: 1.5rem;
}



section {
    background: vanilla;
    margin: 30px auto;
    padding: 1px 30px 10px 30px;
    max-width: 900px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    border-radius: 5px;
}

h2 {
    font-size: 1.7rem;
    border-bottom: 2px solid #333;
    padding-bottom: 10px;
    padding-top: 0px;
    margin-bottom: 25px;
}

h3 {
    font-size: 1.2rem;
    color: var(--accent-color);
    margin-top: 20px;
    margin-bottom: 10px;
}

h4 {
    font-size: 1.0rem;
    color: #555;
    margin-top: 15px;
    margin-bottom: 10px;
}

p {
    font-size: 1rem;
    margin-bottom: 15px;
    color: #555;
    line-height: 1.8;
}

ul {
    list-style-type: disc;
    margin: 20px 0;
    padding-left: 40px;
}

li {
    margin-bottom: 10px;
    color: #555;
}

footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 20px;
    position: relative;
    bottom: 0;
    width: 100%;
    font-size: 20;
    box-shadow: 0 -2px 5px rgba(0, 0, 0, 0.1);
}

footer p {
    margin: 0;
    font-size: 0.8rem;
}

@media (max-width: 768px) {

    h2 {
        font-size: 1.8rem;
    }

    h3 {
        font-size: 1.5rem;
    }

    section {
        border-radius: 0px;
    }

    footer p {
        font-size: 0.9rem;
    }
}