/* Focused: a quiet, spacious page with room for technical writing. */
:root {
    color-scheme: light;
    --paper: #faf9f6;
    --ink: #292c29;
    --muted: #636760;
    --accent: #38604f;
    --rule: #dedfd7;
    --code: #efefe9;
}

html {
    background: var(--paper);
    font-size: clamp(112.5%, 100% + 0.23vw, 120%);
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    box-sizing: border-box;
    /* About 1080px of reading space, plus the page gutters. */
    max-width: 1180px;
    margin: 0 auto;
    padding: 2.5rem 2.5rem 2rem;
    color: var(--ink);
    font-family: Georgia, "Times New Roman", serif;
    font-size: 1rem;
    line-height: 1.8;
    overflow-wrap: anywhere;
}

a {
    color: var(--accent);
    text-decoration-thickness: 1px;
    text-underline-offset: 0.2em;
}

a:hover {
    text-decoration-thickness: 2px;
}

a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 4px;
    border-radius: 2px;
}

.header,
.footer,
h1,
h2,
h3 {
    font-family: system-ui, sans-serif;
}

.header {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: 0.5rem 2rem;
    margin-bottom: 3.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--rule);
    font-size: 0.85rem;
}

.header a,
.footer a {
    display: inline-block;
    padding: 0.3rem 0;
    color: var(--muted);
    text-decoration: none;
}

.header a:hover,
.footer a:hover {
    color: var(--ink);
    text-decoration: underline;
}

.header .site-name {
    color: var(--ink);
    font-size: 1rem;
    font-weight: 650;
    letter-spacing: -0.025em;
}

.navigation,
.footer p {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem 1.25rem;
}

.navigation {
    width: 100%;
}

/* Gemtexter emits spans and inline headings separated by explicit breaks.
   Block layout gives each paragraph its own consistent reading rhythm. */
.focused-content > br {
    display: none;
}

.focused-content > span {
    display: block;
    margin: 0 0 1.2rem;
}

h1,
h2,
h3 {
    display: block !important;
    color: var(--ink);
    font-weight: 600;
    line-height: 1.3;
    text-wrap: balance;
    break-after: avoid;
    scroll-margin-top: 1.5rem;
}

h1 {
    margin: 0 0 1.5rem;
    font-size: clamp(1.8rem, 1.3rem + 1.8vw, 2.5rem);
    letter-spacing: -0.04em;
}

h2 {
    margin: 2.5rem 0 1rem;
    font-size: 1.4rem;
    letter-spacing: -0.025em;
}

h3 {
    margin: 1.75rem 0 0.8rem;
    font-size: 1.1rem;
    letter-spacing: -0.015em;
}

a.textlink {
    display: block;
    margin: 0 0 0.55rem;
    padding: 0.2rem 0;
    line-height: 1.65;
    text-decoration-color: var(--rule);
}

a.textlink:hover {
    text-decoration-color: var(--accent);
}

.quote {
    padding: 0.2rem 0 0.2rem 1.1rem;
    border-left: 2px solid var(--rule);
    color: var(--muted);
    font-style: italic;
}

/* Publication dates and the generated-at line stay visually quiet. */
.focused-content > h1 + br + br + .quote {
    margin: -0.5rem 0 2rem;
    padding: 0;
    border: 0;
    font-family: system-ui, sans-serif;
    font-size: 0.8rem;
    font-style: normal;
}

ul {
    margin: 1rem 0 1.5rem;
    padding-left: 1.4rem;
}

li {
    margin-bottom: 0.5rem;
    padding-left: 0.2rem;
}

li::marker {
    color: var(--muted);
}

pre,
span.inlinecode {
    font-family: ui-monospace, "DejaVu Sans Mono", monospace;
    font-size: 0.85em;
}

pre {
    margin: 1.5rem 0;
    padding: 1.1rem 1.25rem;
    border-radius: 4px;
    background: var(--code);
    line-height: 1.65;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
    overflow-x: auto;
    tab-size: 4;
}

span.inlinecode {
    padding: 0.1em 0.25em;
    border-radius: 3px;
    background: var(--code);
}

img {
    display: block;
    width: auto;
    max-width: 100%;
    height: auto;
    margin: 1.75rem auto;
}

.footer {
    margin-top: 3.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--rule);
    color: var(--muted);
    font-size: 0.75rem;
    line-height: 1.8;
}

.footer p {
    margin: 0.5rem 0;
}

/* Larger reading text on high-density tablets and foldables. */
@media screen and (min-width: 601px) and (max-width: 1280px) and (min-resolution: 2dppx) {
    html {
        font-size: 273%;
    }

    body {
        padding: 1.25rem 1.25rem 1rem;
    }

    pre {
        padding: 0.55rem 0.625rem;
    }
}

@media screen and (max-width: 600px) {
    html {
        /* Twice the previous mobile type size; keep gutters compact below. */
        font-size: 245.7%;
    }

    body {
        padding: 0.625rem 0.4rem;
    }

    .header {
        margin-bottom: 2.25rem;
    }

    h1,
    h2,
    h3 {
        hyphens: auto;
    }

    pre {
        padding: 0.45rem 0.325rem;
    }
}

@media print {
    html {
        background: white;
        font-size: 100%;
    }

    body {
        max-width: none;
        padding: 0;
        color: black;
        font-size: 11pt;
    }

    .header,
    .footer {
        display: none;
    }

    a {
        color: inherit;
    }
}


/* Plaintext: a quiet terminal notebook with generous line spacing. */
:root {
    --paper: #f5f7f3;
    --ink: #28342b;
    --muted: #5e6c60;
    --accent: #32643c;
    --rule: #d7dfd2;
    --code: #e9eee5;
}
body, .header, .footer, h1, h2, h3 {
    font-family: ui-monospace, "DejaVu Sans Mono", monospace;
}
body { line-height: 1.85; }
h1 { font-size: clamp(1.6rem, 1.2rem + 1.4vw, 2.1rem); letter-spacing: -0.045em; }
h2 { font-size: 1.25rem; }
h3 { font-size: 1.05rem; }
.header { border-bottom-style: dashed; }
.footer { border-top-style: dashed; }
.focused-content > h1 + br + br + .quote { font-family: inherit; }
a.textlink { text-decoration-style: dotted; }
pre, span.inlinecode { font-size: 0.9em; }