:root {
    color-scheme: light;
}

:root[data-theme="dark"] {
    color-scheme: dark;
}

:root {
    --primary: light-dark(#212f3d, #dedede);
    --background: light-dark(oklch(0.93 0 89.876), #242424);

    --link: light-dark(#155696, #9ae5ff);
    --link-visited: light-dark(#0f2a5f, #63a9ff);
    --link-active: light-dark(#FF0000, #FF0000);
}

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

:root {
    color: var(--primary);
    background-color: var(--background);

    font-family: "Atkinson Hyperlegible Next", sans-serif;
    line-height: 1.5;
    font-size: 1.1rem;

    block-size: 100%;
    padding: 0;
    margin: 0;
}

body {
    padding: 0.5em;
    max-inline-size: 50ch;
    margin: auto;
}

#top-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 1em;
    font-size: larger;
    padding-block: 0.5em;
    border-block-end: 2px solid var(--primary);
}

#main {
    margin-block: 2em 5em;
}

footer {
    text-align: center;
    border-block-start: 2px solid var(--primary);
    padding-block: 1em;
}

h1:has(+ .social-sharing) {
    margin-block: 0;
}

.social-sharing {
    margin-block-end: 2em;
    display: flex;
    gap: 0.5rem;

    svg {
        color: var(--primary);
    }
}

article.blog-entry {
    + article.blog-entry {
        border-block-start: 1px solid var(--primary);
        margin-block-start: 2em;
        padding-block-start: 1em;
    }

    h2 {
        margin: 0;
    }

    .subheading {
        margin: 0;
        font-style: italic;
        font-size: larger;
    }

    time {
        font-size: smaller;
    }
}

article.blog-post {
    h1 {
        margin: 0;
    }

    .subheading {
        font-size: larger;
        font-style: italic;
        margin: 0
    }

    time {
        font-size: smaller;
        display: block;
        margin-block-end: 0.5rem;
    }

    section.footnotes {
        font-size: smaller;
    }

    aside.small-block {
        display: block;
        max-inline-size: 75%;
        margin: auto;

        img {
            display: block;
            inline-size: 100%;
        }
    }

    img, figure {
        display: block;
        max-inline-size: 100%;
    }

    table {
        width: 100%;

        border-collapse: collapse;


        thead {
            border-block-end: 5px double var(--primary);
        }

        tr + tr {
            border-block-start: 1px solid var(--primary);
        }


        tr:nth-child(even), thead tr {
            background-color: oklch(from var(--background) calc(l * 95%) c h);
        }

        th, td {
            padding: 0.25em;
        }
    }
}

#theme-toggle:hover {
    cursor: pointer;
}

.visually-hidden, #skip-link:not(:focus) {
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    height: 1px;
    overflow: hidden;
    position: absolute;
    white-space: nowrap;
    width: 1px;
}

#skip-link:focus {
    position: absolute;
    left: 0.5em;
    top: 0.5em;
    margin: 1em;
    padding: 1em;
    border: 0.25em solid var(--primary);
    font-size: larger;
}

/* General Typography */
:root {
    blockquote p.attribution {
        margin-block: 0.25em;
        font-size: smaller;
        text-align: right;
    }


    :link[aria-current="page"] {
        font-style: italic;
    }

    :link {
        color: var(--link);
    }

    :visited {
        color: var(--link-visited);
    }

    :link:active, :visited:active {
        color: var(--link-active);
    }

    :is(h1, h2, h3, h4, h5, h6) {
        :link, :visited {
            color: inherit;
        }
    }
}


@media (max-width: 50ch) {
    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.25rem;
    }

    #top-nav {
        font-size: medium;
        gap: 1.5em;
    }
}

@media print {
    #theme-toggle {
        display: none;
    }

    article.blog-entry, img, figure, aside, section.footnotes li {
        break-inside: avoid;
    }
}