@font-face {
    font-family: playfair;
    src: url("PlayfairDisplay-VariableFont_wght.woff2") format("woff2")
}
*::before *::after{
    box-sizing: border-box;
}
:root{
    font-family: playfair, sans-serif;
    line-height: 1.6rem;
    font-size: 1.125rem;
}

header {
    background-color: #333;
    color: #fff;
    border: 5px solid #000;
}

header ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

header a {
    color: #fff;
    text-decoration: none;
    display: block;
    padding: 0.5em 1em;
    border-top: 1px solid #999;
}

header .title {
    font-size: 150%;
    font-style: italic;
    font-weight: bold;
    padding: 1em;
}

@media(min-width: 40em) {
    header {
        display: flex;
        justify-content: space-between;
        align-items: center;

        ul {
            display: flex;
        }

        a {
            border-block-start: 0;
        }
    }
}

body{
    max-width: 80rem;

    h1, h2, h3 {
        margin-inline-start: 1rem;
        margin-block: 2rem 1.5rem;
    }
    h2 + h3{
        margin-block-start: 0.5rem;
    }

    p{
        max-width: 50rem;
        margin-inline-start: 2rem;
        margin-block: 1rem;
    }
}

h3{font-size: calc(1.5*1.125rem)}
h2{font-size: calc(1.5*1.5*1.125rem)}
h1{font-size: calc(1.5*1.5*1.5*1.125rem)}

.metadetails{
    font-style: italic;
}

.introduction{
    font-weight:600;
    color:oklch(0.3387 0.1353 295.24);
}