* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    color-scheme: light dark;
}

body {
    border-top: 3px solid #d22f27;
    font-family: system-ui;
    font-size: 1.5rem;
    line-height: 1.75;
}

a {
    text-decoration: none;
}

a:hover, a:focus, a:active {
    opacity: 0.8;
}

main {
    margin-inline: auto;
    margin-bottom: 3rem;
    margin-top: 3rem;
    max-width: min(70ch, 100% - 4rem);
}

header, article, footer {
    width: 100%;
}

header {
    border-bottom: 1px solid #a9a9a9;    
    display: inline-block;
    padding-bottom: 7px;
    padding-right: 10px;
    width: auto;
}

header h1 {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    font-size: 1.25rem;
    line-height: 1.75rem;
    justify-content: flex-start;
}

header h1 .sectionTitle {
    padding-right: 10px;
}

.overview {
    font-size: 1.25rem;
    line-height: 1.75rem;
    margin: 1rem 0;
}

article {
    padding-bottom: 1em;    
}

article h2 {
    font-size: 1.25rem;
    margin-top: 1.25rem;
    text-transform: uppercase;
}

article hr {
    margin-top: 1.25rem;
}

article p {
    font-size: clamp(1.2rem, calc(1.15rem + .26vw), 1.35rem);
    margin-block-start: 1em;
    max-width: 70ch;
}

ul {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    list-style: none;
    margin: 20px 0 15px 0;
    padding: 0;
}

ul li {
    box-sizing: border-box;
    display: inline-block;
    flex: 1 1 250px;
    text-align: center;
}

ul li a {
    background-color: #d4d4d8;    
    border-radius: 0;
    box-sizing: border-box;
    color: #27272A;
    display: block;
    height: 100%;
    padding: 10px 20px 25px 20px;
    position: relative;
    text-decoration: none;
    width: 100%;
}

ul li a:after {
    bottom: 35%;
    color: #808080;
    content: "\2192";
    font-size: 17px;
    position: absolute;
    right: 15px;
}

ul li a:hover, ul li a:focus, ul li a:active {
    background-color: #fafafa;
    opacity: 1;
}

ul li a h2 {
    font-size: 1.125rem;
    line-height: 1.75rem;
    margin: 0.5rem 0;
}

ul li a p {
    font-size: 1rem;
    line-height: 1.5rem;
}

footer {
    font-size: 1rem;
    opacity: 0.8;
}

footer a {
    white-space: nowrap;
}