:root {
    --fg: #000;
    --bg: #fff;
    --dim: #555;
    --rule: #000;
    --accent: slateblue;
    --measure: 80ch;
    --space: 1rem;
}

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

html {
    font-size: 100%;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    padding: calc(var(--space) * 2) calc(var(--space) * 2);
    max-width: var(--measure);
    background: var(--bg);
    color: var(--fg);
    font-family: "Times New Roman", Times, Georgia, serif;
    font-size: 1.125rem;
    line-height: 1.55;
    text-rendering: optimizeLegibility;
}

/* Headings */

h1, h2, h3, h4, h5, h6 {
    font-weight: normal;
    line-height: 1.2;
    margin: calc(var(--space) * 1.5) 0 calc(var(--space) * 0.5);
}

h1 {
    font-size: 1.9rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    border-bottom: 3px double var(--rule);
    padding-bottom: 0.3rem;
}

h2 {
    font-size: 1.45rem;
    letter-spacing: 0.04em;
    border-bottom: 1px solid var(--rule);
    padding-bottom: 0.2rem;
}

h3 { font-size: 1.2rem; font-style: italic; }
h4, h5, h6 { font-size: 1rem; text-transform: uppercase; letter-spacing: 0.08em; }

/* Text */

p, ul, ol, dl, table, pre, blockquote, figure, form {
    margin: 0 0 var(--space);
}

a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 0.15em;
    svg {
        fill: var(--accent)
    }
}

a:hover, a:focus-visible {
    background: var(--accent); 
    color: var(--bg); 
    svg {
        fill: var(--bg)
    }
}

:focus-visible {
    outline: 2px solid var(--fg);
    outline-offset: 2px;
}

a svg {
    height: 1.5rem;
}

a:has(> svg) {
    display: inline-flex;
    flex-direction: row;
    align-items: center;
    gap: 0.3rem;
}

.links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

strong, b { font-weight: bold; }
em, i, cite, var { font-style: italic; }
small { font-size: 0.85em; color: var(--dim); }
abbr[title] { text-decoration: underline dotted; cursor: help; }
mark { background: var(--fg); color: var(--bg); }
del { text-decoration: line-through; color: var(--dim); }
ins { text-decoration: underline; }

sub, sup { font-size: 0.7em; line-height: 0; position: relative; }
sup { top: -0.5em; }
sub { bottom: -0.25em; }

hr {
    border: none;
    border-top: 1px solid var(--rule);
    margin: calc(var(--space) * 2) 0;
}

blockquote {
    border-left: 2px solid var(--rule);
    padding-left: var(--space);
    color: var(--dim);
    font-style: italic;
}

blockquote cite { display: block; font-style: normal; font-size: 0.9em; }
blockquote cite::before { content: "— "; }

/* Lists */

ul, ol { padding-left: 1.5rem; }
li { margin-bottom: 0.25rem; }
li > ul, li > ol { margin: 0.25rem 0; }

ul { list-style: square; }
nav ul { list-style: none; padding: 0; }
nav li { display: inline; margin-right: 1rem; }

dt { font-weight: bold; }
dd { margin: 0 0 0.5rem 1.5rem; }

/* Code */

code, kbd, samp, pre {
    font-family: "Courier New", Courier, monospace;
    font-size: 0.9em;
}

code { padding: 0 0.15em; }
code::before, code::after { content: "`"; color: var(--dim); }
pre code::before, pre code::after { content: none; }

kbd { border: 1px solid var(--rule); padding: 0 0.25em; }

pre {
    border: 1px solid var(--rule);
    padding: var(--space);
    overflow-x: auto;
    line-height: 1.4;
    white-space: pre;
    tab-size: 4;
}

/* Tables */

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95em;
}

caption {
    caption-side: top;
    text-align: left;
    font-style: italic;
    padding-bottom: 0.4rem;
}

th, td {
    border: 1px solid var(--rule);
    padding: 0.35rem 0.6rem;
    text-align: left;
    vertical-align: top;
}

thead th { border-bottom-width: 3px; text-transform: uppercase; letter-spacing: 0.06em; }
tfoot { font-style: italic; }

/* Media */

img, video, canvas, svg, iframe {
    display: block;
    max-width: 100%;
    height: auto;
}

figure { margin-inline: 0; }
figcaption { font-size: 0.9em; color: var(--dim); font-style: italic; padding-top: 0.3rem; }

/* Details */

details { border: 1px solid var(--rule); padding: 0.5rem var(--space); margin-bottom: var(--space); }
summary { cursor: pointer; font-style: italic; }

/* Utility */

[hidden] { display: none !important; }

.visually-hidden:not(:focus):not(:active) {
    position: absolute;
    width: 1px; height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
}

/* Elements */
#avatar {
    aspect-ratio: 1/1;
    object-fit: cover;
    max-width: 50%;
    float: left;
    margin-right: 1rem
}
#goodreads {
    margin-right: -0.5ch
}

/* Responsive */

@media (max-width: 630px) {
    body { 
        /* font-size: 1rem;  */
        padding: var(--space)
    }
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    nav li { display: block; margin: 0 0 0.3rem; }
    table { display: block; overflow-x: auto; }
    #avatar { 
        float: none;
        max-width: 100%;
        margin: 0 auto 1rem auto;
        aspect-ratio: unset;
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation: none !important; transition: none !important; }
}