/* Arbiter AI — site styles
   Palette: Ink #172033 · Frost #F2F4F7 · Brass #B08A3C · Verdigris #2F7F6E · Text #1B2430 · Muted #5C6675 */
:root{
  --ink:#172033; --ink-2:#1F2A40; --frost:#F2F4F7; --white:#FFFFFF;
  --brass:#B08A3C; --brass-2:#6E5320; --brass-deep:#7A5D25; --verd:#2F7F6E; --verd-2:#24665A; --verd-soft:#E3F1ED;
  --text:#1B2430; --muted:#5C6675; --line:#D9DEE6; --line-2:#C3CAD5;
  --serif:"Spectral",Georgia,"Times New Roman",serif;
  --sans:"IBM Plex Sans",-apple-system,"Segoe UI",Helvetica,Arial,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,monospace;
  --max:1180px; --gutter:24px;
}
*{box-sizing:border-box}
html{scroll-padding-top:80px}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
body{margin:0;font-family:var(--sans);font-size:17px;line-height:1.6;color:var(--text);background:var(--frost);-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3,h4{font-family:var(--serif);font-weight:500;line-height:1.15;margin:0 0 .5em;letter-spacing:-.005em}
h1{font-size:clamp(2.4rem,5vw,3.9rem)}
h2{font-size:clamp(1.8rem,3.2vw,2.5rem)}
h3{font-size:1.35rem}
h4{font-size:1.1rem;font-family:var(--sans);font-weight:600}
p{margin:0 0 1em;max-width:64ch}
.lede{font-size:1.2rem;color:var(--muted);max-width:56ch}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--gutter)}
.small{font-size:.92rem;color:var(--muted)}
.mono{font-family:var(--mono);font-size:.9em}
.center{text-align:center}
.center p{margin-left:auto;margin-right:auto}
ul.plain{list-style:none;margin:0;padding:0}
hr.rule{border:0;border-top:1px solid var(--line);margin:0}

/* Skip link */
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:8px 12px;border-radius:4px;z-index:100}
.skip:focus{left:8px}

/* Header */
.site-head{background:var(--frost);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:24px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--serif);font-size:1.3rem;font-weight:500;color:var(--ink)}
.brand svg{width:28px;height:28px}
.nav{display:flex;gap:28px;align-items:center}
.nav a{text-decoration:none;font-size:.97rem;color:var(--text);padding:6px 0;border-bottom:2px solid transparent}
.nav a:hover,.nav a[aria-current]{border-bottom-color:var(--brass)}
.nav-toggle{display:none;background:none;border:1px solid var(--line-2);border-radius:6px;padding:8px 10px;font:inherit;cursor:pointer}
@media (max-width:860px){
  .nav-toggle{display:block}
  .nav{display:none;position:absolute;left:0;right:0;top:68px;background:var(--white);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:12px 24px 20px;gap:4px}
  .nav.open{display:flex}
  .nav a{padding:12px 0;border-bottom:1px solid var(--line)}
  .nav .btn{margin-top:12px;text-align:center}
}

/* Buttons */
.btn{display:inline-block;padding:12px 22px;border-radius:6px;text-decoration:none;font-weight:600;font-size:.98rem;border:1px solid transparent;cursor:pointer;font-family:var(--sans);line-height:1.2}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--ink-2)}
.btn-brass{background:var(--brass-deep);color:#fff}
.btn-brass:hover{background:var(--brass-2)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--ink)}
.btn-lg{padding:15px 28px;font-size:1.05rem}
.actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center}

/* Sections */
section{padding:88px 0}
.section-tight{padding:56px 0}
.on-ink{background:var(--ink);color:#E9EDF3}
.on-ink h2,.on-ink h3{color:#fff}
.on-ink .lede,.on-ink .small,.on-ink p{color:#B8C2D1}
.on-white{background:var(--white)}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{margin-bottom:.35em}
.kicker{font-family:var(--serif);font-style:italic;color:var(--brass-2);font-size:1.05rem;margin-bottom:10px}
.on-ink .kicker{color:#D6B36A}

/* Hero */
.hero{padding:96px 0 80px;background:var(--frost)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:start}
@media (max-width:920px){.hero-grid{grid-template-columns:1fr;gap:40px}.hero{padding:64px 0}}
.hero h1{margin-bottom:.4em}
.hero .lede{margin-bottom:28px}
.hero-note{margin-top:18px;font-size:.92rem;color:var(--muted)}

/* Custody ledger (hero visual + reused) */
.ledger{background:var(--white);border:1px solid var(--line);border-radius:10px;padding:26px 26px 20px;box-shadow:0 1px 0 rgba(23,32,51,.04)}
.ledger-title{display:flex;justify-content:space-between;align-items:baseline;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:6px}
.ledger-title strong{font-family:var(--serif);font-weight:500;font-size:1.1rem}
.ledger-title span{font-family:var(--mono);font-size:.8rem;color:var(--muted)}
.ledger ol{list-style:none;margin:0;padding:0;counter-reset:step}
.ledger li{display:grid;grid-template-columns:28px 1fr auto;gap:14px;align-items:start;padding:10px 0;border-bottom:1px solid var(--line);opacity:.45;transition:opacity .35s}
.ledger li:last-child{border-bottom:0}
.ledger li.done{opacity:1}
.ledger .mark{width:22px;height:22px;border-radius:50%;border:1.5px solid var(--line-2);display:grid;place-items:center;margin-top:3px}
.ledger li.done .mark{border-color:var(--verd);background:var(--verd)}
.ledger .mark svg{width:12px;height:12px;stroke:#fff;stroke-width:2.5;fill:none;opacity:0}
.ledger li.done .mark svg{opacity:1}
.ledger .step-name{font-weight:600;font-size:.98rem}
.ledger .step-desc{font-size:.9rem;color:var(--muted);line-height:1.45}
.ledger .step-meta{font-family:var(--mono);font-size:.78rem;color:var(--muted);white-space:nowrap;margin-top:4px}
.ledger li.done .step-meta{color:var(--verd)}
.ledger-foot{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-family:var(--mono);font-size:.78rem;color:var(--muted);padding-top:12px;border-top:1px solid var(--line);margin-top:4px}
.ledger-group{display:flex;justify-content:space-between;gap:12px;font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--brass-2);padding:12px 0 2px}
.ledger ol+.ledger-group{border-top:1px solid var(--line);margin-top:4px}
@media (max-width:640px){.ledger{padding:20px 16px 14px}.ledger li{grid-template-columns:24px 1fr;gap:10px 12px}.ledger .step-meta{grid-column:2;margin-top:0;white-space:normal}}

/* Two column feature rows with brass rule */
.row{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:64px;align-items:start;padding:44px 0;border-top:1px solid var(--line)}
.row:first-of-type{border-top:0;padding-top:0}
.row h3{position:relative;padding-left:20px}
.row h3::before{content:"";position:absolute;left:0;top:.2em;bottom:.15em;width:3px;background:var(--brass);border-radius:2px}
@media (max-width:860px){.row{grid-template-columns:1fr;gap:16px;padding:32px 0}}

/* Pillars grid (security) */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:40px 48px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:40px 56px}
.grid-2>*,.grid-3>*{min-width:0}
@media (max-width:860px){.grid-3,.grid-2{grid-template-columns:1fr;gap:32px}}
.pillar h3{font-size:1.2rem}
.pillar p{font-size:.98rem;color:var(--muted)}
.pillar .mark-line{width:36px;height:2px;background:var(--brass);margin-bottom:18px}
.on-ink .pillar p{color:#B8C2D1}

/* Flow strip */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--white)}
.flow div{padding:22px 20px;border-right:1px solid var(--line)}
.flow div:last-child{border-right:0}
.flow b{display:block;font-family:var(--serif);font-weight:500;font-size:1.1rem;margin-bottom:6px}
.flow span{font-size:.9rem;color:var(--muted);line-height:1.45;display:block}
@media (max-width:920px){.flow{grid-template-columns:1fr}.flow div{border-right:0;border-bottom:1px solid var(--line)}.flow div:last-child{border-bottom:0}}

/* Tables */
table{width:100%;border-collapse:collapse;font-size:.97rem;background:var(--white);border:1px solid var(--line);border-radius:10px;overflow:hidden}
th,td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-weight:600;background:#F7F8FA;font-size:.92rem}
tr:last-child td{border-bottom:0}
.tbl-wrap{overflow-x:auto}
td.yes{color:var(--verd);font-weight:600}
td.no{color:var(--muted)}

/* FAQ */
details{border-top:1px solid var(--line);padding:6px 0}
details:last-of-type{border-bottom:1px solid var(--line)}
summary{cursor:pointer;font-weight:600;padding:14px 0;list-style:none;display:flex;justify-content:space-between;gap:16px;font-size:1.02rem}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-family:var(--serif);font-size:1.5rem;line-height:1;color:var(--brass);flex-shrink:0}
details[open] summary::after{content:"–"}
details p{padding-bottom:12px;color:var(--muted)}

/* Code */
pre{background:var(--ink);color:#E9EDF3;padding:20px 22px;border-radius:8px;overflow-x:auto;font-family:var(--mono);font-size:.88rem;line-height:1.55;margin:0 0 1.2em}
code{font-family:var(--mono);font-size:.92em;background:#E7EAF0;padding:1px 5px;border-radius:4px;overflow-wrap:anywhere}
pre code{background:none;padding:0}

/* Links into the repository: a <code> span that is also a link (build.py gh()/src()).
   Same box as any code span, brass text, underline on hover; gold inside a <pre> and on ink;
   plain inside the trace card, which sets its own colours per row. */
.code-link{color:var(--brass-2);text-decoration:none}
.code-link:hover{text-decoration:underline}
pre .code-link,.on-ink .code-link{color:#D6B36A}
.ledger .code-link{color:inherit}
.ledger .code-link code{background:none;padding:0;font-size:inherit}

/* Prose pages */
.prose{max-width:760px}
.prose h2{font-size:1.7rem;margin-top:2em}
.prose h3{margin-top:1.6em}
.prose ul,.prose ol{padding-left:1.3em}
.prose li{margin-bottom:.4em}

/* Steps (docs) */
.steps{counter-reset:s;list-style:none;padding:0;margin:0}
.steps li{counter-increment:s;position:relative;padding:0 0 32px 52px;border-left:1px solid var(--line);margin-left:16px}
.steps li::before{content:counter(s);position:absolute;left:-17px;top:0;width:32px;height:32px;border-radius:50%;background:var(--white);border:1.5px solid var(--brass);color:var(--brass-2);font-family:var(--serif);display:grid;place-items:center;font-size:.95rem}
.steps li:last-child{border-left-color:transparent}

/* CTA band */
.cta-band{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cta-band .wrap{display:flex;justify-content:space-between;align-items:center;gap:32px;flex-wrap:wrap}
.cta-band h2{margin:0;font-size:1.9rem}

/* Footer */
.site-foot{background:var(--ink);color:#B8C2D1;padding:56px 0 32px;font-size:.93rem}
.foot-row{display:flex;justify-content:space-between;align-items:center;gap:20px 32px;flex-wrap:wrap;margin-bottom:18px}
.foot-links{display:flex;gap:6px 26px;flex-wrap:wrap}
.site-foot a{color:#B8C2D1;text-decoration:none;padding:4px 0}
.site-foot a:hover{color:#fff}
.site-foot .brand{color:#fff}
.foot-tag{color:#8B97AB;margin:0 0 28px;max-width:72ch}
.foot-bottom{border-top:1px solid #2A3650;padding-top:20px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.85rem;color:#8B97AB}

/* Callouts */
.callout{border-left:3px solid var(--brass);background:var(--white);padding:18px 22px;border-radius:0 8px 8px 0;margin:24px 0}
.callout p:last-child{margin-bottom:0}
.badge{display:inline-block;font-size:.78rem;font-weight:600;padding:3px 9px;border-radius:999px;background:var(--verd-soft);color:var(--verd-2);letter-spacing:.01em}
.badge.gold{background:#F4ECDA;color:var(--brass-2)}

@media (prefers-reduced-motion:reduce){.ledger li{transition:none}}

/* Property cards (home: the four guarantees, each with where it is enforced and tested) */
.props{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
@media (max-width:860px){.props{grid-template-columns:1fr}}
.prop{background:var(--frost);border:1px solid var(--line);border-radius:10px;padding:28px 28px 24px;min-width:0}
.prop h3{font-size:1.3rem;margin-bottom:.5em}
.prop>p{font-size:.97rem;color:var(--muted)}
.prop dl{margin:14px 0 0;padding-top:14px;border-top:1px solid var(--line);display:grid;gap:10px;font-size:.9rem}
.prop dt{font-family:var(--serif);font-style:italic;color:var(--brass-2)}
.prop dd{margin:0;line-height:1.55;overflow-wrap:anywhere}

/* Pipeline stages and invariants: numbered steps with a "lives in / covered by" line */
.stages{max-width:880px}
.stages li{padding-bottom:36px}
.stages h4{font-size:1.15rem;margin-bottom:.4em}
.stages p{max-width:none}
.stage-meta{font-size:.88rem;color:var(--muted);margin:0;overflow-wrap:anywhere}
.stage-meta b{color:var(--text);font-weight:600}

/* Failure-mode teasers (home) */
.fm-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
@media (max-width:860px){.fm-grid{grid-template-columns:1fr}}
.fm-card{background:var(--frost);border:1px solid var(--line);border-radius:10px;padding:26px 28px 22px;min-width:0;display:flex;flex-direction:column}
.fm-card h3{font-size:1.25rem;line-height:1.3}
.fm-card h3 a{text-decoration:none}
.fm-card h3 a:hover{color:var(--brass-2)}
.fm-card p{font-size:.95rem;color:var(--muted);flex:1}
.fm-card .more{font-weight:600;color:var(--brass-2);text-decoration:none;font-size:.95rem}

/* Author strip and contact links */
.author{max-width:760px}
.author-name{font-family:var(--serif);font-size:1.5rem;color:var(--ink);margin-bottom:.3em}
.author-links{display:flex;gap:8px 24px;flex-wrap:wrap;font-size:.95rem;font-weight:600}
.author-links a{color:var(--brass-2);text-decoration:none}
.author-links a:hover{text-decoration:underline}

/* Benchmarks table */
.bench td .badge{margin-right:6px;vertical-align:middle}
.bench td.mono{white-space:nowrap}

/* ---------------------------------------------------------------- Blog index */
.blog-list{display:grid;gap:24px;max-width:820px}
.blog-card{background:var(--white);border:1px solid var(--line);border-radius:10px;padding:30px 30px 24px;min-width:0}
.blog-card-meta{font-family:var(--mono);font-size:.78rem;color:var(--muted);display:flex;flex-wrap:wrap;gap:10px;margin-bottom:12px}
.blog-card h2{font-size:1.6rem;margin-bottom:.35em}
.blog-card h2 a{text-decoration:none}
.blog-card h2 a:hover{color:var(--brass-2)}
.blog-card-summary{color:var(--muted);margin-bottom:22px}
.blog-feed{max-width:820px;margin-top:26px}

/* ---------------------------------------------------------------- Article */
.post-body{max-width:820px}
.post-body h2{scroll-margin-top:90px}
.post-meta{font-family:var(--mono);font-size:.82rem;color:var(--muted);display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
.post-expansion{font-family:var(--serif);font-style:italic;color:var(--brass-2);margin:-.5em 0 1.1em}
.post-sources li{font-size:.94rem;color:var(--muted)}
.post-backlink{margin-top:2.6em;padding-top:20px;border-top:1px solid var(--line)}
.post-backlink a{color:var(--brass-2);text-decoration:none;font-weight:600}

/* Figures rebuilt from the source article's drawings */
.post-fig{margin:36px 0;padding:26px 26px 20px;background:var(--white);border:1px solid var(--line);border-radius:10px}
.post-fig figcaption{margin-top:20px;padding-top:14px;border-top:1px solid var(--line);font-size:.9rem;color:var(--muted)}
.post-fig-head{font-family:var(--serif);font-style:italic;color:var(--brass-2);font-size:1rem;margin-bottom:20px}
.post-compare{gap:24px}
.post-panel{background:var(--frost);border:1px solid var(--line);border-radius:8px;padding:20px;min-width:0;display:flex;flex-direction:column}
.post-panel-year{font-family:var(--mono);font-size:.8rem;color:var(--brass-2);margin-bottom:14px}
.post-panel-title{font-size:1.02rem;margin-bottom:.7em}
.post-panel .small{margin:auto 0 0;padding-top:12px}
.post-panel-code{padding:20px 16px}
.post-panel-code pre{margin:0;font-size:.78rem;padding:14px 16px;line-height:1.5}

/* Timeline (term list, HIPAA rulemaking) */
.post-fig .post-timeline{list-style:none;margin:0;padding:0}
.post-timeline li{display:grid;grid-template-columns:52px minmax(0,1fr);column-gap:18px;margin:0}
.post-timeline .yr{font-family:var(--mono);font-size:.82rem;color:var(--brass-2);text-align:right;padding-top:4px}
.post-timeline .tl{border-left:1px solid var(--line);padding:0 0 24px 22px;position:relative;min-width:0}
.post-timeline li:last-child .tl{border-left-color:transparent;padding-bottom:0}
.post-timeline .tl::before{content:"";position:absolute;left:-5px;top:6px;width:9px;height:9px;border-radius:50%;background:var(--brass)}
.post-timeline b{display:block;font-family:var(--serif);font-weight:500;font-size:1.1rem;line-height:1.25}
.post-timeline em{display:block;color:var(--brass-2);font-size:.88rem;margin:1px 0 4px}
.post-timeline p{margin:0;font-size:.94rem;color:var(--muted);max-width:54ch}
.post-timeline-plain b{font-size:1.02rem;font-family:var(--sans);font-weight:600}

/* ICD then and now */
.post-causes li{font-size:.95rem;margin-bottom:.2em}
.post-code-big{font-family:var(--mono);font-size:clamp(1.5rem,6vw,2.1rem);letter-spacing:.02em;text-align:center;margin:4px 0 18px;color:var(--ink)}
.post-split{margin:0;display:grid;gap:8px}
.post-split>div{display:grid;grid-template-columns:42px minmax(0,1fr);gap:12px;align-items:baseline}
.post-split dt{font-family:var(--mono);font-size:.95rem;color:var(--brass-2);text-align:right}
.post-split dd{margin:0;font-size:.92rem;color:var(--muted);border-left:1px solid var(--line-2);padding-left:12px}

/* One folder per patient */
.post-panel .post-cards{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.post-cards li{background:var(--white);border:1px solid var(--line-2);border-radius:6px;padding:11px 14px;font-size:.93rem;margin:0}
.post-cards-stamped li{font-family:var(--mono);color:var(--brass-2);border-color:var(--brass);letter-spacing:.05em}

/* Free-text note versus SOAP */
.post-scribble{display:grid;gap:9px;background:var(--white);border:1px solid var(--line-2);border-radius:6px;padding:17px 16px}
.post-scribble span{display:block;height:3px;border-radius:2px;background:var(--line-2)}
.post-soap{margin:0;display:grid;gap:9px}
.post-soap>div{display:grid;grid-template-columns:26px minmax(0,1fr);gap:12px;align-items:baseline;background:var(--white);border:1px solid var(--line);border-radius:6px;padding:9px 14px}
.post-soap dt{font-family:var(--serif);font-size:1.15rem;font-weight:500;color:var(--brass-2)}
.post-soap dd{margin:0;font-size:.93rem}

/* Re-identification funnel */
.post-fig .post-funnel{list-style:none;margin:0;padding:0}
.post-funnel li{position:relative;display:flex;justify-content:space-between;align-items:baseline;gap:14px;background:var(--frost);border:1px solid var(--line-2);border-radius:6px;padding:13px 16px;margin:0 0 32px;font-size:.94rem;min-width:min(100%,11rem)}
.post-funnel li::after{content:"";position:absolute;left:26px;bottom:-25px;border-left:6px solid transparent;border-right:6px solid transparent;border-top:9px solid var(--line-2)}
.post-funnel li:last-child{margin-bottom:0}
.post-funnel li:last-child::after{content:none}
.post-funnel b{font-family:var(--mono);text-align:right}
.post-funnel b.note{font-family:var(--sans);font-weight:400;font-size:.88rem;color:var(--muted)}
.post-funnel li.last{border-color:var(--brass);border-width:1.5px;background:#F4ECDA}
.post-funnel li.last b{color:var(--brass-2);font-size:1.2rem}

/* Regulator reach, before and after */
.post-svg{width:100%;height:auto;margin-bottom:8px}
.post-svg .bx{fill:var(--white);stroke:var(--line-2);stroke-width:1}
.post-svg .bx.out{fill:none;stroke-dasharray:3 3}
.post-svg .lb{font-family:var(--sans);font-size:12px;fill:var(--text);text-anchor:middle}
.post-svg .mut{font-family:var(--sans);font-size:9.5px;fill:var(--muted)}
.post-svg .lb.mut{font-size:12px;fill:var(--muted)}
.post-svg .ln{stroke:var(--ink);stroke-width:1.4;fill:none}
.post-svg .ln.dot{stroke:var(--line-2);stroke-dasharray:3 3}
.post-svg .ln.go{stroke:var(--verd)}

/* EHR adoption bars */
.post-bars{gap:28px 40px}
.post-bar-group{min-width:0}
.post-bar-cols{display:flex;align-items:flex-end;gap:0}
.post-bar{flex:1;min-width:0}
.post-bar-track{height:150px;display:flex;align-items:flex-end;justify-content:center;border-bottom:1px solid var(--line-2)}
.post-bar-fill{position:relative;display:block;width:calc(100% - 22px);max-width:72px;min-height:3px;background:var(--brass);border-radius:3px 3px 0 0}
.post-bar-fill.hi{background:var(--verd)}
.post-bar-fill b{position:absolute;left:0;right:0;text-align:center;bottom:calc(100% + 6px);font-family:var(--mono);font-size:.85rem;color:var(--ink)}
.post-bar-fill.hi b{color:var(--verd-2)}
.post-bar-x{display:block;font-family:var(--mono);font-size:.72rem;color:var(--muted);text-align:center;padding-top:8px}
.post-bar-label{font-weight:600;font-size:.95rem;text-align:center;margin:8px 0 0}

/* Quick reference */
.post-quickref{margin:0;border-top:1px solid var(--line)}
.post-quickref>div{display:grid;grid-template-columns:minmax(0,160px) minmax(0,1fr);gap:6px 20px;padding:12px 0;border-bottom:1px solid var(--line)}
.post-quickref dt{font-weight:600}
.post-quickref dd{margin:0;color:var(--muted);font-size:.95rem}

@media (max-width:640px){
  .post-fig{padding:18px 16px 16px;margin:28px 0}
  .post-panel{padding:16px}
  .blog-card{padding:24px 22px 20px}
  .post-quickref>div{grid-template-columns:1fr}
  .post-timeline li{grid-template-columns:44px minmax(0,1fr);column-gap:14px}
  .post-timeline .tl{padding-left:18px}
  .post-bar-track{height:120px}
}