/* ==========================================================================
   Obscura — an austere publication theme.
   No web fonts, no radius, no shadows, no gradients, no motion.
   Everything is a hairline rule and a flat surface.
   ========================================================================== */

:root {
    --bg:          #131415;
    --bg-sunk:     #0e0f10;
    --bg-raised:   #191a1c;

    --fg:          #c2c3c4;
    --fg-strong:   #e6e7e8;
    --fg-dim:      #78797b;
    --fg-faint:    #555658;

    --rule:        #2a2b2d;
    --rule-strong: #3a3b3e;

    --link:        #93a9c4;
    --link-hover:  #c8d6e6;
    --visited:     #9a93b0;

    --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
            "Liberation Mono", "DejaVu Sans Mono", monospace;
    --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
            "Helvetica Neue", "PingFang SC", "Hiragino Sans GB",
            "Microsoft YaHei", Arial, sans-serif;
    --serif: Charter, "Bitstream Charter", "Iowan Old Style", Georgia,
             "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", serif;

    --measure: 40rem;
    --gutter: 1.5rem;
}

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

html {
    -webkit-text-size-adjust: 100%;
    background: var(--bg);
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--fg);
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.wrap {
    width: 100%;
    max-width: var(--measure);
    margin: 0 auto;
    padding: 0 var(--gutter);
}

a {
    color: var(--link);
    text-decoration: underline;
    text-underline-offset: 2px;
    text-decoration-thickness: 1px;
}
a:hover { color: var(--link-hover); }
a:visited { color: var(--visited); }

.skip {
    position: absolute;
    left: -9999px;
}
.skip:focus {
    left: var(--gutter);
    top: 0.5rem;
    z-index: 10;
    background: var(--bg-raised);
    border: 1px solid var(--rule-strong);
    padding: 0.4rem 0.7rem;
    font: 0.75rem var(--mono);
}

:focus-visible {
    outline: 1px solid var(--link);
    outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   Masthead
   -------------------------------------------------------------------------- */

.site-head {
    border-bottom: 1px solid var(--rule);
    padding: 2.25rem 0 0;
}

.site-id {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0 0.75rem;
}

.site-title {
    font-family: var(--mono);
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--fg-strong);
    text-decoration: none;
}
.site-title:visited { color: var(--fg-strong); }
.site-title:hover { color: var(--fg-strong); text-decoration: underline; }

.site-desc {
    margin: 0;
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--fg-faint);
    letter-spacing: 0.01em;
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0 1.25rem;
    margin-top: 1.5rem;
}

.site-nav a {
    display: block;
    padding: 0.5rem 0;
    border-bottom: 1px solid transparent;
    margin-bottom: -1px;
    font-family: var(--mono);
    font-size: 0.78rem;
    letter-spacing: 0.04em;
    color: var(--fg-dim);
    text-decoration: none;
}
.site-nav a:visited { color: var(--fg-dim); }
.site-nav a:hover { color: var(--fg-strong); }
.site-nav a[aria-current="page"] {
    color: var(--fg-strong);
    border-bottom-color: var(--rule-strong);
}

/* --------------------------------------------------------------------------
   Stream header (home / tag / author)
   -------------------------------------------------------------------------- */

.stream-head {
    padding: 2.5rem 0 0;
}

.stream-kicker {
    margin: 0 0 0.4rem;
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--fg-faint);
}

.stream-title {
    margin: 0;
    font-size: 1.15rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    color: var(--fg-strong);
}

.stream-desc {
    margin: 0.6rem 0 0;
    font-family: var(--serif);
    font-size: 0.95rem;
    color: var(--fg-dim);
}

.stream-count {
    margin: 0.45rem 0 0;
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--fg-faint);
}

/* --------------------------------------------------------------------------
   Post list
   -------------------------------------------------------------------------- */

.post-list {
    margin-top: 1.75rem;
    border-top: 1px solid var(--rule);
}

.post-item {
    padding: 1.6rem 0;
    border-bottom: 1px solid var(--rule);
}

.post-item.is-featured {
    border-left: 2px solid var(--rule-strong);
    padding-left: 1rem;
    margin-left: -1rem;
}

.post-item-title {
    margin: 0;
    font-size: 1.12rem;
    font-weight: 600;
    line-height: 1.4;
    letter-spacing: 0.005em;
}
.post-item-title a {
    color: var(--fg-strong);
    text-decoration: none;
}
.post-item-title a:visited { color: var(--fg); }
.post-item-title a:hover { text-decoration: underline; }

.post-item-excerpt {
    margin: 0.5rem 0 0;
    font-family: var(--serif);
    font-size: 0.94rem;
    line-height: 1.65;
    color: var(--fg-dim);
}

.post-item-meta {
    margin: 0.7rem 0 0;
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.03em;
    color: var(--fg-faint);
}
.post-item-meta .sep { margin: 0 0.5rem; color: var(--rule-strong); }
.post-item-meta a { color: var(--fg-dim); text-decoration: none; }
.post-item-meta a:hover { color: var(--fg-strong); text-decoration: underline; }
.post-item-meta .flag {
    border: 1px solid var(--rule-strong);
    padding: 0 0.35rem;
    color: var(--fg-dim);
}

/* --------------------------------------------------------------------------
   Pagination
   -------------------------------------------------------------------------- */

.pagination {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 1rem;
    padding: 1.5rem 0 0;
    font-family: var(--mono);
    font-size: 0.75rem;
    letter-spacing: 0.03em;
}
.pagination a { text-decoration: none; color: var(--fg-dim); }
.pagination a:hover { color: var(--fg-strong); text-decoration: underline; }
.pagination .is-off { color: var(--fg-faint); opacity: 0.45; }
.pagination .page-pos { color: var(--fg-faint); }

/* --------------------------------------------------------------------------
   Single post
   -------------------------------------------------------------------------- */

.post-head {
    padding: 2.5rem 0 1.5rem;
    border-bottom: 1px solid var(--rule);
}

.post-kicker {
    margin: 0 0 0.6rem;
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}
.post-kicker a { color: var(--fg-dim); text-decoration: none; }
.post-kicker a:hover { color: var(--fg-strong); text-decoration: underline; }

.post-title {
    margin: 0;
    font-size: 1.75rem;
    font-weight: 600;
    line-height: 1.28;
    letter-spacing: -0.005em;
    color: var(--fg-strong);
}

.post-dek {
    margin: 0.85rem 0 0;
    font-family: var(--serif);
    font-size: 1.02rem;
    line-height: 1.6;
    color: var(--fg-dim);
}

.post-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0 1.75rem;
    margin: 1.5rem 0 0;
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.03em;
}
.post-meta div { display: flex; gap: 0.5rem; }
.post-meta dt {
    color: var(--fg-faint);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}
.post-meta dd { margin: 0; color: var(--fg-dim); }
.post-meta a { color: var(--fg-dim); text-decoration: none; }
.post-meta a:hover { color: var(--fg-strong); text-decoration: underline; }

.post-figure {
    margin: 2rem 0 0;
}
.post-figure img {
    display: block;
    width: 100%;
    height: auto;
    border: 1px solid var(--rule);
}
.post-figure figcaption {
    margin-top: 0.5rem;
    font-family: var(--mono);
    font-size: 0.7rem;
    color: var(--fg-faint);
}

/* --------------------------------------------------------------------------
   Article body — the one place that prioritises comfort over austerity
   -------------------------------------------------------------------------- */

.post-content {
    font-family: var(--serif);
    font-size: 1.05rem;
    line-height: 1.78;
    color: var(--fg);
    padding: 2rem 0 0;
}

.post-content > * { margin: 0 0 1.4em; }
.post-content > *:last-child { margin-bottom: 0; }

.post-content h1,
.post-content h2,
.post-content h3,
.post-content h4 {
    font-family: var(--sans);
    font-weight: 600;
    line-height: 1.35;
    color: var(--fg-strong);
    margin: 2.4em 0 0.7em;
    letter-spacing: 0.005em;
}
.post-content h2 {
    font-size: 1.22rem;
    padding-bottom: 0.45rem;
    border-bottom: 1px solid var(--rule);
}
.post-content h3 { font-size: 1.06rem; }
.post-content h4 { font-size: 0.96rem; color: var(--fg); }

.post-content a { color: var(--link); }

.post-content strong { color: var(--fg-strong); font-weight: 600; }

.post-content ul,
.post-content ol { padding-left: 1.4em; }
.post-content li { margin-bottom: 0.5em; }
.post-content li::marker { color: var(--fg-faint); }

.post-content blockquote {
    margin-left: 0;
    margin-right: 0;
    padding: 0.2em 0 0.2em 1.25em;
    border-left: 2px solid var(--rule-strong);
    color: var(--fg-dim);
}
.post-content blockquote p:last-child { margin-bottom: 0; }

.post-content hr {
    border: 0;
    border-top: 1px solid var(--rule);
    margin: 2.6em 0;
}

.post-content code {
    font-family: var(--mono);
    font-size: 0.85em;
    background: var(--bg-sunk);
    border: 1px solid var(--rule);
    padding: 0.1em 0.35em;
    color: var(--fg-strong);
}

.post-content pre {
    font-family: var(--mono);
    font-size: 0.8rem;
    line-height: 1.65;
    background: var(--bg-sunk);
    border: 1px solid var(--rule);
    padding: 1rem 1.1rem;
    overflow-x: auto;
    color: var(--fg);
}
.post-content pre code {
    background: none;
    border: 0;
    padding: 0;
    font-size: inherit;
    color: inherit;
}

.post-content img,
.post-content video,
.post-content iframe {
    display: block;
    max-width: 100%;
    height: auto;
    border: 1px solid var(--rule);
}

.post-content figure { margin-left: 0; margin-right: 0; }
.post-content figcaption {
    margin-top: 0.5rem;
    font-family: var(--mono);
    font-size: 0.7rem;
    line-height: 1.5;
    color: var(--fg-faint);
    text-align: left;
}

.post-content table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--sans);
    font-size: 0.85rem;
}
.post-content th,
.post-content td {
    border: 1px solid var(--rule);
    padding: 0.5rem 0.7rem;
    text-align: left;
    vertical-align: top;
}
.post-content th {
    background: var(--bg-raised);
    color: var(--fg-strong);
    font-family: var(--mono);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

/* Ghost card normalisation */
.post-content .kg-card { margin-bottom: 1.6em; }
.post-content .kg-width-wide,
.post-content .kg-width-full { max-width: 100%; }
.post-content .kg-image { width: 100%; }
.post-content .kg-bookmark-card a {
    display: block;
    border: 1px solid var(--rule);
    padding: 1rem;
    text-decoration: none;
    color: var(--fg);
}
.post-content .kg-bookmark-title { color: var(--fg-strong); font-weight: 600; }
.post-content .kg-bookmark-description { font-size: 0.9rem; color: var(--fg-dim); }
.post-content .kg-bookmark-thumbnail { display: none; }

/* --------------------------------------------------------------------------
   Post footer
   -------------------------------------------------------------------------- */

.post-foot {
    margin-top: 2.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--rule);
}

.post-tags {
    margin: 0;
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.03em;
}
.post-tags .label {
    color: var(--fg-faint);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-right: 0.75rem;
}
.post-tags a {
    color: var(--fg-dim);
    text-decoration: none;
    border: 1px solid var(--rule);
    padding: 0.15rem 0.45rem;
    margin-right: 0.4rem;
    display: inline-block;
}
.post-tags a:hover { color: var(--fg-strong); border-color: var(--rule-strong); }

/* --------------------------------------------------------------------------
   Related
   -------------------------------------------------------------------------- */

.related { margin-top: 3.5rem; }

.section-title {
    margin: 0;
    font-family: var(--mono);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--fg-faint);
}
.related .post-list { margin-top: 1rem; }
.related .post-item-excerpt { display: none; }

/* --------------------------------------------------------------------------
   404
   -------------------------------------------------------------------------- */

.error-page {
    padding: 5rem 0;
    border-bottom: 1px solid var(--rule);
}
.error-code {
    margin: 0;
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.16em;
    color: var(--fg-faint);
}
.error-title {
    margin: 0.5rem 0 0;
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--fg-strong);
}
.error-note {
    margin: 0.75rem 0 1.5rem;
    font-family: var(--serif);
    color: var(--fg-dim);
}

/* --------------------------------------------------------------------------
   Disclaimer foot — dense legal text, deliberately quiet
   -------------------------------------------------------------------------- */

#main { padding-bottom: 4rem; }

.site-foot {
    border-top: 1px solid var(--rule);
    background: var(--bg-sunk);
    padding: 1.75rem 0 2.5rem;
    color: var(--fg-faint);
}

.site-foot .wrap { max-width: 62rem; }

/* Collapsed by default — native <details>, no JavaScript */

.foot-details { border: 1px solid var(--rule); }

.foot-toggle {
    display: block;
    list-style: none;
    cursor: pointer;
    padding: 0.85rem 1rem 0.85rem 2.2rem;
    position: relative;
    background: var(--bg-raised);
    -webkit-tap-highlight-color: transparent;
}
.foot-toggle::-webkit-details-marker { display: none; }
.foot-toggle::marker { content: ""; }

.foot-toggle::before {
    content: "+";
    position: absolute;
    left: 1rem;
    top: 0.8rem;
    font-family: var(--mono);
    font-size: 0.85rem;
    line-height: 1.2;
    color: var(--fg-dim);
}
.foot-details[open] > .foot-toggle::before { content: "\2212"; }

.foot-toggle:hover { background: #202123; }
.foot-toggle:hover .toggle-main { color: var(--fg-strong); }

.foot-details[open] > .foot-toggle { border-bottom: 1px solid var(--rule); }

.toggle-main {
    display: block;
    font-family: var(--mono);
    font-size: 0.74rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--fg-dim);
}

.toggle-sub {
    display: block;
    margin-top: 0.2rem;
    font-family: var(--mono);
    font-size: 0.63rem;
    letter-spacing: 0.03em;
    color: var(--fg-faint);
}

.foot-body { padding: 2rem 1rem 2.5rem; }

.foot-title {
    margin: 2rem 0 0;
    font-family: var(--mono);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--fg-dim);
}

.foot-sub {
    margin: 0.3rem 0 0;
    font-family: var(--mono);
    font-size: 0.68rem;
    letter-spacing: 0.06em;
    color: var(--fg-faint);
}

.foot-law {
    margin: 0.9rem 0 0;
    padding: 0.5rem 0.7rem;
    border: 1px solid var(--rule);
    font-family: var(--mono);
    font-size: 0.63rem;
    line-height: 1.7;
    letter-spacing: 0.02em;
    color: var(--fg-faint);
}

.foot-warn {
    margin: 0;
    padding: 0.75rem 0.9rem;
    border: 1px solid var(--rule-strong);
    border-left: 3px solid var(--fg-dim);
    background: var(--bg-raised);
    font-family: var(--sans);
    font-size: 0.7rem;
    line-height: 1.75;
    color: var(--fg-dim);
}
.foot-warn strong { color: var(--fg-strong); font-weight: 600; }

.foot-cols {
    margin-top: 2rem;
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
}

.foot-lang h3 {
    margin: 0 0 1.25rem;
    padding-bottom: 0.4rem;
    border-bottom: 1px solid var(--rule);
    font-family: var(--mono);
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--fg-dim);
}

.foot-lang h4 {
    margin: 1.5rem 0 0.45rem;
    font-family: var(--sans);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--fg-dim);
}
.foot-lang h4:first-of-type { margin-top: 0; }

.foot-lang p {
    margin: 0 0 0.5rem;
    font-family: var(--sans);
    font-size: 0.68rem;
    line-height: 1.72;
    color: var(--fg-faint);
    text-align: justify;
    hyphens: auto;
}

.foot-lang strong { color: var(--fg-dim); font-weight: 600; }
.foot-lang em { font-style: italic; }

.site-foot a { color: var(--fg-dim); }

@media (min-width: 62rem) {
    .foot-cols {
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
    }
}

/* --------------------------------------------------------------------------
   Narrow screens
   -------------------------------------------------------------------------- */

@media (max-width: 34rem) {
    :root { --gutter: 1.1rem; }
    .post-title { font-size: 1.45rem; }
    .post-content { font-size: 1rem; }
    .post-meta { gap: 0 1rem; }
    .site-nav { gap: 0 1rem; }
}

/* Respect a light-mode preference by staying dark but lifting contrast
   slightly — this theme is deliberately single-tone. */
@media (prefers-contrast: more) {
    :root {
        --fg: #d8d9da;
        --fg-dim: #9a9b9d;
        --fg-faint: #7c7d7f;
        --rule: #3a3b3e;
    }
}

@media print {
    body { background: #fff; color: #000; }
    .site-nav, .pagination, .related { display: none; }
    .site-foot { background: none; border-top: 1px solid #999; }
    .site-foot, .foot-lang p { color: #333; font-size: 7pt; }
    .foot-cols { grid-template-columns: 1fr 1fr; gap: 1.5rem; }
    /* force the collapsed terms open so they actually print */
    .foot-details > .foot-body { display: block !important; }
    .foot-toggle { display: none; }
    .foot-details { border: 0; }
    .foot-body { padding: 0; }
    .post-content { font-size: 11pt; }
}