/* rogmendoza.com — navy & gold brand, with a little PCB on the side */
:root {
  --bg: #f8f6f0;
  --bg-alt: #efebe0;
  --surface: #fffdf8;
  --ink: #0c1a30;
  --ink-soft: #3d4a5e;
  --muted: #6c7686;
  --line: #ddd6c4;
  --accent: #052754;      /* brand navy */
  --accent-soft: #e3e9f3;
  --gold: #9c7b1c;        /* brand gold, darkened for text contrast */
  --gold-brand: #c8a742;
  --gold-soft: #f5edd3;
  --focus: #c8a742;
  --code-bg: #0b1a33;
  --code-ink: #e3e8f1;
  --shadow: 0 1px 0 rgba(0,0,0,.04), 0 8px 24px -12px rgba(5,39,84,.22);
  --radius: 10px;
  --max: 1120px;
  --read: 70ch;
  --font: "Space Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
  --brand-font: "Montserrat", var(--font);
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #07111f; --bg-alt: #0c1a2e; --surface: #0f1f37; --ink: #eef1f6; --ink-soft: #bcc6d6;
    --muted: #8a96aa; --line: #1d2e48; --accent: #9fbbe6; --accent-soft: #14294a; --gold: #d8b95a;
    --gold-brand: #c8a742; --gold-soft: #2e2611; --code-bg: #040a14; --code-ink: #dbe3ef;
    --shadow: 0 1px 0 rgba(0,0,0,.3), 0 10px 30px -14px rgba(0,0,0,.75); color-scheme: dark;
  }
}
:root[data-theme="dark"] {
    --bg: #07111f; --bg-alt: #0c1a2e; --surface: #0f1f37; --ink: #eef1f6; --ink-soft: #bcc6d6;
    --muted: #8a96aa; --line: #1d2e48; --accent: #9fbbe6; --accent-soft: #14294a; --gold: #d8b95a;
    --gold-brand: #c8a742; --gold-soft: #2e2611; --code-bg: #040a14; --code-ink: #dbe3ef;
    --shadow: 0 1px 0 rgba(0,0,0,.3), 0 10px 30px -14px rgba(0,0,0,.75); color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; animation: none !important; } }
body {
  margin: 0; background: var(--bg); color: var(--ink); font-family: var(--font);
  font-size: 17px; line-height: 1.6; overflow-x: hidden;
}
img, svg { max-width: 100%; }
a { color: var(--accent); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--gold); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: 4px; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 16px; }
@media (min-width: 720px) { .wrap { padding: 0 32px; } }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--bg); padding: 8px 12px; z-index: 99; }
.skip:focus { left: 8px; }
.mono { font-family: var(--mono); }

/* ---------- header ---------- */
.site-head {
  position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(10px); -webkit-backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-head .wrap { display: flex; align-items: center; gap: 16px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--accent); text-decoration: none; }
.brand img { height: 36px; width: auto; flex: none; display: block; }
.brand span { font-family: var(--brand-font); font-weight: 500; font-size: 14px; letter-spacing: .24em; text-transform: uppercase; color: var(--ink); }
.brand:hover span { color: var(--gold); }
.nav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.nav a { color: var(--ink-soft); text-decoration: none; font-size: 15px; padding: 6px 10px; border-radius: 6px; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); background: var(--bg-alt); }
.theme-btn {
  border: 1px solid var(--line); background: var(--surface); color: var(--ink-soft); width: 36px; height: 36px;
  border-radius: 8px; display: grid; place-items: center; cursor: pointer; margin-left: 4px;
}
.theme-btn svg { width: 18px; height: 18px; }
@media (max-width: 560px) { .nav a.hide-sm { display: none; } .brand span { font-size: 12px; letter-spacing: .16em; } }
@media (max-width: 360px) { .brand span { display: none; } }

/* ---------- hero ---------- */
.hero { position: relative; padding: 72px 0 56px; border-bottom: 1px solid var(--line); overflow: hidden; }
.hero-traces { position: absolute; inset: 0; pointer-events: none; opacity: .5; color: var(--line); }
.hero-traces svg { position: absolute; right: -40px; top: 0; height: 100%; width: auto; min-width: 560px; }
.hero .wrap { position: relative; }
.hero-grid { display: grid; gap: 32px; grid-template-columns: 1fr; align-items: end; }
@media (min-width: 900px) { .hero-grid { grid-template-columns: 1.35fr 1fr; gap: 48px; } }
.portrait { position: relative; justify-self: center; width: min(100%, 400px); aspect-ratio: 435 / 482; }
.portrait::before {
  content: ""; position: absolute; left: 6%; right: 6%; bottom: 0; aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle at 50% 40%, #0b3a78, #052754 70%);
  box-shadow: 0 0 0 6px var(--bg), 0 0 0 8px var(--gold-brand);
}
.portrait img { position: relative; display: block; width: 100%; height: auto; border-radius: 0 0 50% 50% / 0 0 18% 18%; }
.portrait .sig { position: absolute; right: -4%; bottom: 6%; width: 34%; height: auto; border-radius: 0; filter: drop-shadow(0 2px 6px rgba(0,0,0,.25)); }
@media (max-width: 899px) { .portrait { width: min(78%, 320px); order: -1; } }
.eyebrow { font-family: var(--brand-font); font-weight: 600; font-size: 12.5px; letter-spacing: .22em; text-transform: uppercase; color: var(--gold); margin: 0 0 14px; }
.hero h1 { font-size: clamp(38px, 7vw, 72px); line-height: 1.02; letter-spacing: -.035em; margin: 0 0 20px; max-width: 14ch; }
.hero h1 em { font-style: normal; color: var(--accent); }
.lede { font-size: clamp(18px, 2.2vw, 21px); color: var(--ink-soft); max-width: 58ch; margin: 0 0 28px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 11px 18px; border-radius: 8px; font-weight: 600;
  text-decoration: none; border: 1px solid var(--ink); color: var(--bg); background: var(--ink); font-size: 15px;
}
.btn:hover { background: var(--gold-brand); border-color: var(--gold-brand); color: #052754; }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn.ghost:hover { border-color: var(--ink); background: var(--surface); color: var(--ink); }

.stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; margin-top: 48px; }
@media (min-width: 760px) { .stats { grid-template-columns: repeat(4, 1fr); } }
.stat { background: var(--surface); padding: 18px 20px; }
.stat b { display: block; font-size: clamp(26px, 3.4vw, 34px); letter-spacing: -.02em; line-height: 1.1; }
.stat span { color: var(--muted); font-size: 14px; }

/* ---------- sections ---------- */
section.block { padding: 72px 0; border-bottom: 1px solid var(--line); }
.sec-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 32px; }
.sec-head h2 { font-size: clamp(28px, 4vw, 40px); letter-spacing: -.03em; margin: 0; line-height: 1.1; }
.sec-head .tag { font-family: var(--mono); font-size: 13px; color: var(--muted); }
.sec-intro { color: var(--ink-soft); max-width: 62ch; margin: -16px 0 32px; }

/* projects */
.grid { display: grid; gap: 20px; grid-template-columns: 1fr; }
@media (min-width: 760px) { .grid.two { grid-template-columns: repeat(2, 1fr); } .grid.three { grid-template-columns: repeat(3, 1fr); } }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px;
  box-shadow: var(--shadow); display: flex; flex-direction: column; gap: 12px; min-width: 0;
}
.card.feature { border-top: 3px solid var(--accent); }
.card h3 { margin: 0; font-size: 22px; letter-spacing: -.02em; line-height: 1.2; }
.card .meta { font-family: var(--mono); font-size: 12.5px; color: var(--gold); text-transform: uppercase; letter-spacing: .06em; }
.card p { margin: 0; color: var(--ink-soft); }
.card ul { margin: 0; padding-left: 18px; color: var(--ink-soft); }
.card li + li { margin-top: 6px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; padding-top: 6px; }
.chip { font-family: var(--mono); font-size: 12px; padding: 3px 8px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); border: 1px solid transparent; }
.chip.cu { background: var(--gold-soft); color: var(--gold); }
.card a.more { font-weight: 600; text-decoration: none; }

/* timeline */
.timeline { list-style: none; margin: 0; padding: 0; position: relative; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 2px; background: repeating-linear-gradient(var(--line) 0 6px, transparent 6px 10px); }
.timeline > li { position: relative; padding: 0 0 36px 36px; }
.timeline > li:last-child { padding-bottom: 0; }
.timeline > li::before { content: ""; position: absolute; left: 0; top: 6px; width: 16px; height: 16px; border-radius: 50%; background: var(--bg); border: 3px solid var(--gold); }
.tl-head { display: flex; flex-wrap: wrap; gap: 4px 14px; align-items: baseline; }
.tl-head h3 { margin: 0; font-size: 20px; letter-spacing: -.01em; }
.tl-head .when { font-family: var(--mono); font-size: 13px; color: var(--muted); }
.tl-role { color: var(--accent); font-weight: 600; margin: 2px 0 8px; }
.timeline ul { margin: 0; padding-left: 18px; color: var(--ink-soft); max-width: 78ch; }
.timeline ul li + li { margin-top: 4px; }

/* skills */
.skills { display: grid; gap: 20px; grid-template-columns: 1fr; }
@media (min-width: 760px) { .skills { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1020px) { .skills { grid-template-columns: repeat(3, 1fr); } }
.skill h3 { font-size: 16px; margin: 0 0 10px; display: flex; gap: 8px; align-items: center; }
.skill h3::before { content: ""; width: 10px; height: 10px; border-radius: 2px; background: var(--gold); flex: none; }

/* credentials */
.creds { display: grid; gap: 12px; grid-template-columns: 1fr; }
@media (min-width: 760px) { .creds { grid-template-columns: repeat(2, 1fr); } }
.cred { display: flex; gap: 14px; align-items: flex-start; padding: 16px 18px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.cred .ico { width: 36px; height: 36px; border-radius: 8px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; flex: none; }
.cred .ico svg { width: 20px; height: 20px; }
.cred b { display: block; }
.cred span { color: var(--muted); font-size: 15px; }

/* posts list */
.posts { display: grid; gap: 0; border-top: 1px solid var(--line); }
.post-row { display: grid; grid-template-columns: 1fr; gap: 6px; padding: 22px 0; border-bottom: 1px solid var(--line); text-decoration: none; color: inherit; }
@media (min-width: 760px) { .post-row { grid-template-columns: 130px 1fr; gap: 24px; } }
.post-row time { font-family: var(--mono); font-size: 13px; color: var(--muted); padding-top: 4px; }
.post-row h3 { margin: 0 0 6px; font-size: 21px; letter-spacing: -.015em; line-height: 1.25; color: var(--ink); }
.post-row:hover h3 { color: var(--accent); }
.post-row p { margin: 0 0 10px; color: var(--ink-soft); }
.post-row .chips { padding-top: 0; }
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.filters button {
  font: inherit; font-family: var(--mono); font-size: 13px; padding: 6px 12px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--line); background: var(--surface); color: var(--ink-soft);
}
.filters button[aria-pressed="true"] { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.count { font-family: var(--mono); font-size: 13px; color: var(--muted); }

/* contact */
.contact { display: grid; gap: 24px; grid-template-columns: 1fr; align-items: center; }
@media (min-width: 860px) { .contact { grid-template-columns: 1.4fr 1fr; } }
.contact h2 { font-size: clamp(28px, 4vw, 40px); letter-spacing: -.03em; margin: 0 0 12px; line-height: 1.1; }
.contact p { color: var(--ink-soft); margin: 0 0 20px; max-width: 56ch; }
.links { display: grid; gap: 10px; }
.links a { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 14px 16px; border: 1px solid var(--line); border-radius: 8px; text-decoration: none; color: var(--ink); background: var(--surface); }
.links a:hover { border-color: var(--accent); color: var(--accent); }
.links small { color: var(--muted); font-family: var(--mono); font-size: 12px; }

/* ---------- article ---------- */
.article-head { padding: 56px 0 32px; border-bottom: 1px solid var(--line); }
.article-head .crumbs { font-family: var(--mono); font-size: 13px; margin-bottom: 18px; }
.article-head .crumbs a { color: var(--muted); text-decoration: none; }
.article-head .crumbs a:hover { color: var(--accent); }
.article-head h1 { font-size: clamp(32px, 5.4vw, 52px); line-height: 1.08; letter-spacing: -.03em; margin: 0 0 16px; max-width: 22ch; }
.article-head .dek { font-size: 20px; color: var(--ink-soft); max-width: 60ch; margin: 0 0 20px; }
.article-meta { display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: center; font-family: var(--mono); font-size: 13px; color: var(--muted); }
.prose { max-width: var(--read); padding: 40px 0 24px; font-size: 18px; }
.prose > * + * { margin-top: 1.1em; }
.prose p, .prose ul, .prose ol, .prose blockquote, .prose pre { margin-bottom: 0; }
.prose h2 { font-size: 27px; letter-spacing: -.02em; line-height: 1.2; margin: 1.9em 0 0; }
.prose h3 { font-size: 21px; letter-spacing: -.01em; margin: 1.6em 0 0; }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li + li { margin-top: .35em; }
.prose blockquote { margin-left: 0; padding: 4px 0 4px 18px; border-left: 3px solid var(--gold); color: var(--ink-soft); font-style: italic; }
.prose code { font-family: var(--mono); font-size: .86em; background: var(--bg-alt); padding: .12em .38em; border-radius: 4px; border: 1px solid var(--line); }
.prose pre { background: var(--code-bg); color: var(--code-ink); padding: 18px 20px; border-radius: var(--radius); overflow-x: auto; font-size: 14.5px; line-height: 1.55; }
.prose pre code { background: none; border: 0; padding: 0; font-size: inherit; color: inherit; }
.prose hr { border: 0; border-top: 1px dashed var(--line); margin: 2.2em 0; }
.prose table { border-collapse: collapse; width: 100%; font-size: 16px; display: block; overflow-x: auto; }
.prose th, .prose td { border: 1px solid var(--line); padding: 8px 12px; text-align: left; vertical-align: top; }
.prose th { background: var(--bg-alt); }
.callout { border: 1px solid var(--line); border-left: 3px solid var(--accent); background: var(--surface); padding: 14px 18px; border-radius: 8px; }
.post-nav { display: grid; gap: 12px; grid-template-columns: 1fr; padding: 24px 0 64px; max-width: var(--read); }
@media (min-width: 640px) { .post-nav { grid-template-columns: 1fr 1fr; } }
.post-nav a { display: block; padding: 16px; border: 1px solid var(--line); border-radius: 8px; text-decoration: none; color: var(--ink); background: var(--surface); }
.post-nav a:hover { border-color: var(--accent); }
.post-nav small { display: block; font-family: var(--mono); font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.post-nav .next { text-align: right; }

/* ---------- footer ---------- */
.site-foot { padding: 40px 0 48px; color: var(--muted); font-size: 14px; }
.site-foot .wrap { display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; align-items: center; }
.foot-logo { height: 84px; width: auto; display: block; }
.logo-dark { display: none; }
:root[data-theme="dark"] .logo-light { display: none; }
:root[data-theme="dark"] .logo-dark { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .logo-light { display: none; }
  :root:not([data-theme="light"]) .logo-dark { display: block; }
}
.site-foot a { color: var(--muted); }
.site-foot nav { display: flex; gap: 16px; flex-wrap: wrap; }

.page-head { padding: 56px 0 24px; }
.page-head h1 { font-size: clamp(36px, 6vw, 60px); letter-spacing: -.035em; line-height: 1.05; margin: 0 0 14px; }
.page-head p { color: var(--ink-soft); font-size: 19px; max-width: 60ch; margin: 0; }

/* ---------- figures & galleries ---------- */
.prose figure { margin: 1.6em 0 0; }
.prose figure img, .cover img { display: block; width: 100%; height: auto; border-radius: var(--radius); border: 1px solid var(--line); background: var(--bg-alt); }
.prose figcaption { font-size: 14.5px; color: var(--muted); margin-top: 8px; line-height: 1.45; }
.gallery { display: grid; gap: 12px; margin-top: 1.6em; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.gallery figure { margin: 0; }
@media (min-width: 720px) { .gallery.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); } .gallery.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.cover { margin: 32px 0 0; max-width: var(--read); }
.cover img { width: auto; max-width: 100%; max-height: 640px; }
.prose figure.narrow { max-width: 440px; }
.prose figure.chart { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 16px 12px; }
.chart svg { display: block; width: 100%; height: auto; font-family: var(--mono); }
.chart .ax { stroke: var(--line); }
.chart .lbl { fill: var(--muted); font-size: 12px; }
.chart .val { fill: var(--ink); font-size: 13px; font-weight: 500; }
.chart .b1 { fill: var(--muted); opacity: .6; }
.chart .b2 { fill: var(--accent); }
.chart .b3 { fill: var(--gold-brand); }
.chart .ln { stroke: var(--accent); stroke-width: 2; fill: none; }
.chart .ln2 { stroke: var(--gold-brand); stroke-width: 2; fill: none; stroke-dasharray: 5 4; }
.chart .band { fill: var(--accent); opacity: .1; }
.chart .dot { fill: var(--gold-brand); }
.legend { display: flex; flex-wrap: wrap; gap: 6px 16px; font-family: var(--mono); font-size: 12px; color: var(--muted); margin-top: 6px; }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 6px; vertical-align: -1px; }

/* post list thumbnails */
.post-row.has-thumb { grid-template-columns: 1fr; }
.post-row .thumb { width: 100%; aspect-ratio: 16 / 9; object-fit: contain; border-radius: 8px; border: 1px solid var(--line); background: var(--bg-alt); }
@media (min-width: 760px) {
  .post-row.has-thumb { grid-template-columns: 130px 1fr 168px; }
  .post-row.has-thumb .thumb { grid-column: 3; grid-row: 1; aspect-ratio: 4 / 3; }
  .post-row.has-thumb > div { grid-column: 2; grid-row: 1; }
}

/* project cards with media */
.card .media { margin: -24px -24px 4px; border-bottom: 1px solid var(--line); background: var(--bg-alt); border-radius: var(--radius) var(--radius) 0 0; overflow: hidden; }
.card .media img { display: block; width: 100%; height: 220px; object-fit: contain; }
.card .media.contain img { object-fit: contain; padding: 12px; background: #0d0f12; }

/* research teaser */
.theory { display: grid; gap: 24px; grid-template-columns: 1fr; align-items: start; }
@media (min-width: 900px) { .theory { grid-template-columns: 1.1fr 1fr; } }
.verdicts { display: grid; gap: 10px; }
.verdict { display: grid; grid-template-columns: 74px 1fr; gap: 12px; align-items: baseline; padding: 12px 14px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); }
.verdict b { font-family: var(--mono); font-size: 12px; letter-spacing: .06em; padding: 2px 6px; border-radius: 4px; text-align: center; }
.v-null { background: var(--gold-soft); color: var(--gold); }
.v-adopt { background: var(--accent-soft); color: var(--accent); }
.v-fixed { background: var(--bg-alt); color: var(--ink-soft); }
.verdict span { color: var(--ink-soft); font-size: 15.5px; }

/* ---------- academic theory paper ---------- */
.paper-head { padding: 56px 0 36px; border-bottom: 1px solid var(--line); background:
  linear-gradient(180deg, var(--bg-alt), var(--bg)); }
.paper-head h1 { font-size: clamp(30px, 5vw, 50px); line-height: 1.08; letter-spacing: -.03em; margin: 0 0 14px; max-width: 24ch; }
.paper-head .dek { font-size: 19px; color: var(--ink-soft); max-width: 64ch; margin: 0 0 20px; }
.paper-byline { display: flex; flex-wrap: wrap; gap: 6px 22px; font-family: var(--mono); font-size: 13px; color: var(--muted); }
.paper-byline b { color: var(--ink); font-weight: 500; }
.paper-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 32px; padding-top: 32px; padding-bottom: 72px; }
@media (min-width: 1040px) { .paper-grid { grid-template-columns: 220px minmax(0, 1fr); gap: 48px; } }
.paper-toc { font-size: 14.5px; }
@media (min-width: 1040px) { .paper-toc { position: sticky; top: 84px; align-self: start; max-height: calc(100vh - 100px); overflow: auto; } }
.toc-label { font-family: var(--brand-font); font-weight: 600; font-size: 12px; letter-spacing: .2em; text-transform: uppercase; color: var(--gold); margin: 0 0 10px; }
.paper-toc ol { margin: 0; padding-left: 1.9em; color: var(--muted); }
.paper-toc li + li { margin-top: 6px; }
.paper-toc a { color: var(--ink-soft); text-decoration: none; }
.paper-toc a:hover { color: var(--accent); }
.abstract { background: var(--surface); border: 1px solid var(--line); border-top: 3px solid var(--gold-brand); border-radius: var(--radius); padding: 20px 22px; max-width: var(--read); }
.abs-h { font-family: var(--brand-font); font-size: 13px; letter-spacing: .2em; text-transform: uppercase; color: var(--gold); margin: 0 0 8px; }
.abstract p { margin: 0; font-size: 17px; }
.abstract .kw { margin-top: 12px; font-size: 14.5px; color: var(--muted); }
.paper-body { counter-reset: sec; padding-top: 8px; }
.paper-body h2 { counter-increment: sec; counter-reset: sub; scroll-margin-top: 80px; }
.paper-body h2::before { content: counter(sec) ". "; color: var(--gold); }
.paper-body h3 { counter-increment: sub; scroll-margin-top: 80px; }
.paper-body h3::before { content: counter(sec) "." counter(sub) " "; color: var(--muted); font-weight: 500; }
.paper-body h2.unnumbered::before, .paper-body h2#references::before { content: none; }
.paper-body table { font-size: 15px; }
.paper-body td:last-child { white-space: nowrap; }
.paper-body ol.refs { font-size: 15px; color: var(--ink-soft); }
.tag-null, .tag-adopt, .tag-queue, .tag-fixed { font-family: var(--mono); font-size: 11.5px; padding: 1px 6px; border-radius: 4px; white-space: nowrap; }
.tag-null { background: var(--gold-soft); color: var(--gold); }
.tag-adopt { background: var(--accent-soft); color: var(--accent); }
.tag-queue, .tag-fixed { background: var(--bg-alt); color: var(--ink-soft); border: 1px solid var(--line); }
.hide-sm { }
@media (max-width: 560px) { .nav .hide-sm { display: none; } }
.legend .sw-b1 { background: var(--muted); opacity: .6; }
.legend .sw-b2 { background: var(--accent); }
.legend .sw-b3 { background: var(--gold-brand); }
.card-links { display: flex; flex-wrap: wrap; gap: 6px 16px; }
.card .media.light { background: #fbfbf9; }
.card .media.light img { padding: 8px; }
.card.comm { display: grid; grid-template-columns: 1fr; gap: 16px 24px; align-items: center; }
@media (min-width: 640px) { .card.comm { grid-template-columns: 150px 1fr; } }
.card.comm > div:last-child { display: flex; flex-direction: column; gap: 8px; }
.comm-badge { width: 150px; height: 150px; border-radius: 12px; display: grid; place-items: center; overflow: hidden; background: #fbfbf9; border: 1px solid var(--line); }
.comm-badge img { width: 100%; height: 100%; object-fit: contain; padding: 8px; }
.comm-badge svg { width: 64px; height: 64px; color: var(--accent); }
.comm-badge:has(svg) { background: var(--accent-soft); }
@media (max-width: 640px) {
  .prose figure.chart { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .chart svg { min-width: 560px; }
}