*,
*::before,
*::after {
    box-sizing: border-box;
}

:root {
    --main-light-colour: #FCF6D9;
    --main-accent-colour: #DBF3FE;
    --main-dark-colour: #6B3446;
    --another-accent-colour: #245501;
    --main-darkest-colour: #433123;
    --max-width: 800px;
}

html {
    margin: 0;
    font-family: "Libertinus Serif Display", system-ui;
    line-height: 1.45;
    background: var(--main-dark-colour);
    color: white;
}

body {
    margin: 0;
    padding: 1rem;

    /* dvh tracks the visible viewport on mobile; vh is the fallback. */
    min-height: 100vh;
    min-height: 100dvh;

    display: flex;
    flex-direction: column;
    align-items: center;
}

.content {
    padding: 32px;
    background: var(--main-light-colour);
    width: 100%;
    max-width: var(--max-width);
    margin-top: 1rem;
    margin-bottom: 1rem;

    color: var(--main-darkest-colour);
    font-size: 1.3rem;
    flex: 1;

    a {
        color: var(--another-accent-colour);
    }
}

.footer {
    border: var(--main-light-colour) dashed 2px;
    width: 100%;
    max-width: var(--max-width);
    /* Absorbs the free space in body's column flex, pinning the footer down. */
    margin-top: auto;

    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-inline: 1rem;
    background-color: var(--main-dark-colour);

    p,
    a {
        color: #fffff0;
        font-size: 1.3rem;
    }

    a {
        text-decoration: none;
    }

    a:hover,
    a:focus-visible {
        background-color: var(--main-accent-colour);
        color: var(--main-dark-colour);
    }
}

nav {
    width: 100%;
    max-width: var(--max-width);
    background-color: var(--main-dark-colour);
    font-size: 1.5rem;
    border: var(--main-light-colour) dashed 2px;

    ul {
        margin: 0;
        display: flex;
        justify-content: center;

        li {
            list-style: none;
            margin: 16px;
        }

        a {
            color: #fffff0;
            text-decoration: none;
        }

        a:hover,
        a:focus-visible {
            background-color: var(--main-accent-colour);
            color: var(--main-dark-colour);
        }

        .active {
            text-decoration: underline;
        }
    }
}

h1, h2 {
    color: var(--main-dark-colour);
}

@media (max-width: 800px) {
    body {
        padding-inline: 0;
    }

    .content {
        padding-inline: 1.25rem;
    }

    nav {
        border-left: none;
        border-right: none;
    }

    .footer {
        border-left:none;
        border-right: none;
    }
}