/* Science News Weekly — "The Weekly Issue"
   A lab notebook on graph paper. Each page is filed as an entry in a weekly issue:
   issue stamp, spec table (What it measures / Sensor type / Validation evidence / Limits),
   accuracy strip (published validation results, colour-coded by who ran the study). */

@font-face{font-family:"Instrument Serif";font-style:normal;font-weight:400;font-display:swap;src:url(/assets/fonts/instrument-serif.woff2) format("woff2")}
@font-face{font-family:"Instrument Serif";font-style:italic;font-weight:400;font-display:swap;src:url(/assets/fonts/instrument-serif-italic.woff2) format("woff2")}
@font-face{font-family:"Public Sans";font-style:normal;font-weight:400 700;font-display:swap;src:url(/assets/fonts/public-sans.woff2) format("woff2")}
@font-face{font-family:"Sometype Mono";font-style:normal;font-weight:400 600;font-display:swap;src:url(/assets/fonts/sometype-mono.woff2) format("woff2")}

:root{
  --ground:#F7F9FB; --grid:#E3E9EF; --grid-strong:#D3DCE5; --paper:#FFFFFF;
  --ink:#10212B; --ink-2:#2B3D48; --muted:#4A5C68; --line:#C6D1DB; --line-soft:#DCE4EB;
  --oxide:#D1432B; --oxide-ink:#B23A22; --oxide-tint:#FBEAE6;
  --blue:#2F4B9A; --blue-tint:#E8EDF8;
  --ok:#1E6B4A; --err:#B23A22;
  --display:"Instrument Serif", Georgia, "Times New Roman", serif;
  --body:"Public Sans", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  --mono:"Sometype Mono", ui-monospace, Consolas, "Courier New", monospace;
  --w:1180px; --w-narrow:780px; --gut:clamp(16px,4vw,32px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:24px}
body{margin:0;color:var(--ink);font:400 17px/1.65 var(--body);
  background-color:var(--ground);
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:24px 24px;background-position:-1px -1px;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--oxide-ink)}
:focus-visible{outline:3px solid var(--oxide);outline-offset:2px}
h1,h2,h3,h4{color:var(--ink);line-height:1.15;margin:0 0 .5em}
h1,h2{font-family:var(--display);font-weight:400;letter-spacing:-.01em}
h3,h4{font-family:var(--body);font-weight:700}
p{margin:0 0 1em}
code{font-family:var(--mono);font-size:.88em;background:var(--paper);border:1px solid var(--line-soft);padding:.05em .35em}
.wrap{max-width:var(--w);margin:0 auto;padding:0 var(--gut)}
.wrap-narrow{max-width:var(--w-narrow);margin:0 auto;padding:0 var(--gut)}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 14px;z-index:100}
.skip-link:focus{left:12px;top:12px}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.mono,.eyebrow{font-family:var(--mono)}
.eyebrow{font-size:12.5px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--oxide-ink);margin:0 0 .6em}

/* ---------- Header ---------- */
.topbar{background:var(--paper);border-bottom:3px double var(--ink)}
.issue-line{background:var(--ink);color:#E9EEF2;font:500 12px/1.4 var(--mono);letter-spacing:.08em;text-transform:uppercase}
.issue-line-inner{max-width:var(--w);margin:0 auto;padding:7px var(--gut);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.issue-line-tag{color:#AFC0CC}
.topbar-inner{max-width:var(--w);margin:0 auto;padding:14px var(--gut);display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none}
.brand-mark{width:38px;height:38px;flex:none;color:var(--ink)}
.wordmark{font-family:var(--display);font-size:30px;line-height:1;letter-spacing:-.01em;white-space:nowrap}
.wordmark em{color:var(--oxide);font-style:italic}
.nav{display:flex;gap:4px;flex-wrap:wrap}
.nav a{font:500 13px/1 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ink);text-decoration:none;padding:10px 11px;border:1px solid transparent}
.nav a:hover{border-color:var(--line)}
.nav a[aria-current="page"]{border-color:var(--ink);background:var(--ground)}
.nav-toggle{display:none;font:600 13px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;background:var(--paper);color:var(--ink);border:2px solid var(--ink);padding:9px 12px;cursor:pointer}
@media (max-width:900px){
  .nav-toggle{display:block}
  .topbar-inner{flex-wrap:wrap}
  .nav{display:none;width:100%;flex-direction:column;border-top:1px solid var(--line);padding-top:8px}
  .nav.is-open{display:flex}
  .nav a{padding:12px 4px}
  .issue-line-tag{display:none}
}
@media (max-width:420px){.wordmark{font-size:25px}.brand-mark{width:32px;height:32px}}

/* ---------- Buttons, tags, chips ---------- */
.btn{display:inline-block;font:600 14px/1 var(--mono);letter-spacing:.06em;text-transform:uppercase;text-decoration:none;padding:14px 18px;border:2px solid var(--ink);cursor:pointer;text-align:center}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--blue);border-color:var(--blue);color:#fff}
.btn-accent{background:var(--oxide);border-color:var(--oxide);color:#fff}
.btn-accent:hover{background:var(--oxide-ink);border-color:var(--oxide-ink);color:#fff}
.btn-ghost{background:var(--paper);color:var(--ink)}
.btn-ghost:hover{background:var(--ground);color:var(--ink)}
.btn-block{display:block;width:100%}
.tag{display:inline-block;font:600 11.5px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;padding:5px 7px;border:1.5px solid currentColor;background:var(--paper)}
.tag-a{color:var(--blue)}
.tag-b{color:var(--oxide-ink)}
.tag-c{color:var(--ink)}
.tag-feature{color:var(--paper);background:var(--ink);border-color:var(--ink)}
.chip{display:inline-block;font:500 12px/1 var(--mono);letter-spacing:.04em;padding:6px 8px;border:1px dashed var(--line);background:var(--paper);color:var(--ink-2)}

/* The issue stamp: the site's filing device */
.issue-stamp{display:inline-grid;grid-template-columns:auto auto;gap:2px 14px;align-items:baseline;font:500 11.5px/1.35 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--oxide-ink);border:2px solid var(--oxide);padding:7px 11px 6px;background:var(--paper);transform:rotate(-1.5deg);transform-origin:left center}
.issue-stamp b{grid-column:1/-1;font-weight:600;font-size:14px;letter-spacing:.12em;border-bottom:1px solid var(--oxide);padding-bottom:3px;margin-bottom:2px}

/* ---------- Breadcrumbs ---------- */
.crumbs{font:500 12.5px/1.4 var(--mono);letter-spacing:.03em;color:var(--muted);padding:22px 0 0;display:flex;flex-wrap:wrap;gap:6px}
.crumbs a{color:var(--muted)}
.crumbs [aria-current]{color:var(--ink)}

/* ---------- Callouts, lists, tables ---------- */
.callout{background:var(--paper);border:1.5px solid var(--ink);border-left-width:6px;padding:16px 18px 6px;margin:1.6em 0}
.callout-note{border-color:var(--blue)}
.callout-watch{border-color:var(--oxide)}
.callout-key{border-color:var(--ink)}
.callout-label{display:block;font:600 11.5px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;margin-bottom:9px}
.callout-note .callout-label{color:var(--blue)}
.callout-watch .callout-label{color:var(--oxide-ink)}
.checklist{list-style:none;padding:0;margin:0 0 1.2em}
.checklist li{position:relative;padding:0 0 .55em 30px}
.checklist li::before{content:"";position:absolute;left:0;top:.38em;width:14px;height:14px;border:1.5px solid var(--ink);background:var(--paper)}
.checklist.all-done li::after,.checklist li.is-done::after{content:"";position:absolute;left:4px;top:.28em;width:6px;height:11px;border:solid var(--oxide);border-width:0 2.5px 2.5px 0;transform:rotate(40deg)}
.steps{list-style:none;counter-reset:st;padding:0;margin:0 0 1.4em}
.steps>li{counter-increment:st;position:relative;padding:2px 0 10px 58px;margin-bottom:10px;border-bottom:1px dashed var(--line)}
.steps>li::before{content:counter(st,decimal-leading-zero);position:absolute;left:0;top:0;font:600 15px/1 var(--mono);color:var(--paper);background:var(--ink);padding:8px 8px 7px;min-width:40px;text-align:center}
.steps-accent>li::before{background:var(--oxide)}
.steps h3{font-size:17px;margin:4px 0 4px}
.steps p{margin:0 0 .4em}
.step-time{font:500 12px/1 var(--mono);color:var(--muted);letter-spacing:.05em;margin-left:6px}
.sources{padding-left:0;list-style:none;counter-reset:src;font-size:15px}
.sources li{counter-increment:src;position:relative;padding:0 0 .7em 44px;overflow-wrap:anywhere}
.sources li::before{content:"[" counter(src) "]";position:absolute;left:0;font:600 13px/1.9 var(--mono);color:var(--blue)}
ul.sources li::before{content:"\2014"}
.disclosure{font-size:13.5px;color:var(--muted);line-height:1.55}
.tbl-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:0 0 1.4em;border:1.5px solid var(--ink);background:var(--paper)}
.data-table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px}
.data-table th,.data-table td{text-align:left;vertical-align:top;padding:10px 12px;border-bottom:1px solid var(--line-soft)}
.data-table thead th{font:600 11.5px/1.3 var(--mono);letter-spacing:.1em;text-transform:uppercase;background:var(--ground);border-bottom:1.5px solid var(--ink)}
.data-table tbody tr:last-child td{border-bottom:0}
.num{font-family:var(--mono);white-space:nowrap}

/* ---------- Sections (home) ---------- */
.section{padding:56px 0}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:18px;flex-wrap:wrap;border-bottom:2px solid var(--ink);padding-bottom:12px;margin-bottom:24px}
.section-head h2{font-size:clamp(32px,4.4vw,46px);margin:0}
.section-head .eyebrow{margin-bottom:.3em}
.section-no{font:500 12.5px/1 var(--mono);color:var(--muted);letter-spacing:.08em;text-transform:uppercase}
.section-lede{max-width:760px;color:var(--ink-2)}

/* Cover */
.cover{padding:34px 0 20px}
.cover-grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:28px;align-items:start}
.cover-sheet{background:var(--paper);border:2px solid var(--ink);padding:clamp(20px,3.4vw,40px);position:relative;box-shadow:6px 6px 0 var(--grid-strong)}
.cover-sheet .issue-stamp{position:absolute;top:18px;right:18px}
.cover-kicker{font:600 12.5px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--blue);margin:0 0 18px}
.cover-title{font-family:var(--display);font-size:clamp(44px,6.6vw,84px);line-height:.98;letter-spacing:-.02em;margin:26px 0 18px;max-width:14ch}
.cover-title em{color:var(--oxide);font-style:italic}
.cover-lede{font-size:18.5px;color:var(--ink-2);max-width:60ch}
.cover-figs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;border:1.5px solid var(--ink);margin:22px 0 22px}
.cover-figs div{padding:12px 14px;border-right:1px solid var(--line)}
.cover-figs div:last-child{border-right:0}
.cover-figs b{display:block;font:400 36px/1 var(--display);color:var(--ink)}
.cover-figs span{font:500 11.5px/1.3 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.cover-actions{display:flex;flex-wrap:wrap;gap:10px}
.contents{background:var(--paper);border:2px solid var(--ink);padding:20px 22px}
.contents h2{font-size:30px;margin:0 0 4px}
.contents .eyebrow{margin-bottom:10px}
.contents ol{list-style:none;padding:0;margin:0}
.contents li{border-top:1px solid var(--line-soft)}
.contents a{display:grid;grid-template-columns:44px minmax(0,1fr);gap:10px;padding:10px 0;color:var(--ink);text-decoration:none}
.contents a:hover .ct-title{color:var(--oxide-ink);text-decoration:underline}
.ct-page{font:600 13px/1.5 var(--mono);color:var(--oxide-ink)}
.ct-title{display:block;font-weight:600;font-size:15.5px;line-height:1.35}
.ct-sub{display:block;font:500 11.5px/1.4 var(--mono);color:var(--muted);letter-spacing:.04em;text-transform:uppercase;margin-top:3px}
.contents-foot{font:500 12px/1.5 var(--mono);color:var(--muted);margin:12px 0 0;border-top:1.5px solid var(--ink);padding-top:10px}

/* Instrument cabinet */
.drawer{margin:0 0 34px;border:2px solid var(--ink);background:rgba(255,255,255,.55)}
.drawer-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding:12px 16px;border-bottom:2px solid var(--ink);background:var(--paper)}
.drawer-label{font:600 13px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;padding:7px 10px;border:1.5px solid var(--ink);background:var(--ground)}
.drawer-head h3{font:400 26px/1.1 var(--display);margin:0}
.drawer-head p{margin:0 0 0 auto;font:500 12px/1.4 var(--mono);color:var(--muted)}
.specimens{list-style:none;margin:0;padding:16px;display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}
.specimens>li{min-width:0}
.specimen{display:flex;flex-direction:column;height:100%;background:var(--paper);border:1.5px solid var(--ink);color:var(--ink);text-decoration:none;transition:transform .15s ease,box-shadow .15s ease}
.specimen:hover{transform:translate(-2px,-2px);box-shadow:4px 4px 0 var(--oxide)}
.specimen-plate{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:8px 10px;border-bottom:1px solid var(--line);font:600 11.5px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase}
.specimen-plate .no{color:var(--oxide-ink)}
.specimen-photo{aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;padding:18px;background-color:#FBFCFD;background-image:linear-gradient(var(--line-soft) 1px,transparent 1px),linear-gradient(90deg,var(--line-soft) 1px,transparent 1px);background-size:16px 16px;border-bottom:1px solid var(--line)}
.specimen-photo img{max-height:100%;width:auto;object-fit:contain;mix-blend-mode:multiply}
.specimen-body{padding:12px 14px 14px;display:flex;flex-direction:column;flex:1}
.specimen-title{font:700 17px/1.25 var(--body);margin:0 0 6px}
.specimen-measures{font:500 12px/1.45 var(--mono);color:var(--blue);margin:0 0 8px}
.specimen-sub{font-size:14.5px;color:var(--ink-2);margin:0 0 10px}
.specimen-go{margin-top:auto;font:600 12px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--oxide-ink)}

/* Features (article teasers) */
.features{display:grid;gap:18px}
.feature-row{display:grid;grid-template-columns:64px minmax(0,300px) minmax(0,1fr);gap:22px;align-items:start;padding:18px;background:var(--paper);border:1.5px solid var(--ink);color:var(--ink);text-decoration:none}
.feature-row:hover .feature-title{color:var(--oxide-ink);text-decoration:underline}
.feature-no{font:400 52px/0.9 var(--display);color:var(--oxide)}
.feature-cover{border:1px solid var(--line)}
.feature-meta{display:flex;gap:10px;flex-wrap:wrap;font:500 11.5px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:10px}
.feature-title{font:400 30px/1.1 var(--display);margin:0 0 8px}
.feature-dek{color:var(--ink-2);margin:0}
@media (max-width:760px){.feature-row{grid-template-columns:minmax(0,1fr);gap:12px}.feature-no{font-size:40px}}

/* Method grid (home + about) */
.how{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px;margin:0 0 1.6em}
.how-item{background:var(--paper);border:1.5px solid var(--ink);border-top-width:6px;padding:16px 16px 6px}
.how-item h3{font-size:16.5px;margin:0 0 8px}
.how-item p{font-size:15px;color:var(--ink-2)}
.how-item.is-accent{border-top-color:var(--oxide)}
.how-item.is-blue{border-top-color:var(--blue)}
.how-item.is-dash{border-top-style:dashed;border-top-color:var(--muted)}
.section-foot{margin:6px 0 0;font:600 13px/1 var(--mono);letter-spacing:.06em;text-transform:uppercase}

/* Legend (accuracy colours), shared by home + product */
.acc-legend{display:flex;flex-wrap:wrap;gap:8px 18px;list-style:none;padding:0;margin:0 0 12px;font:500 12px/1.4 var(--mono);color:var(--ink-2)}
.acc-legend li{display:flex;align-items:center;gap:7px}
.acc-legend i{display:inline-block;width:16px;height:12px;border:2px solid var(--ink)}
.acc-legend .k-indep{background:var(--blue);border-color:var(--blue)}
.acc-legend .k-maker{background:var(--oxide-tint);border-color:var(--oxide)}
.acc-legend .k-none{background:var(--paper);border-style:dashed;border-color:var(--muted)}

/* Newsletter */
.brief{--ok:#8FE0B5;--err:#F6A897;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px;background:var(--ink);color:#E9EEF2;padding:clamp(20px,4vw,40px);border:2px solid var(--ink)}
.brief h2{color:#fff;font-size:clamp(32px,4vw,44px)}
.brief .eyebrow{color:#F08A74}
.brief a{color:#C6D3FF}
.nl-form{display:flex;gap:0;flex-wrap:wrap}
.nl-form input[type=email]{flex:1 1 220px;min-width:0;font:400 16px/1 var(--body);padding:14px;border:2px solid #fff;background:#fff;color:var(--ink)}
.nl-form button{font:600 14px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;padding:14px 18px;background:var(--oxide);color:#fff;border:2px solid var(--oxide);cursor:pointer}
.nl-form button:hover{background:var(--oxide-ink);border-color:var(--oxide-ink)}
.nl-msg{min-height:1.6em;font:500 14px/1.6 var(--mono);margin-top:8px}
.brief .nl-msg{color:#fff}
.nl-note{font-size:13px;color:#AFC0CC;margin-top:8px}
@media (max-width:760px){.brief{grid-template-columns:minmax(0,1fr)}}

/* ---------- Instrument (product) entry ---------- */
.entry-head{padding:22px 0 26px;border-bottom:2px solid var(--ink);margin-bottom:28px}
.entry-head-top{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap;margin-bottom:14px}
.entry-title{font-size:clamp(38px,5.4vw,62px);line-height:1.02;margin:10px 0 12px;max-width:22ch}
.entry-deck{font-size:19px;color:var(--ink-2);max-width:62ch}
.entry-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.entry-meta time{font:500 12.5px/1 var(--mono);color:var(--muted);margin-left:4px}
.entry-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:40px;align-items:start;padding-bottom:64px}
.entry-main{min-width:0}
.entry-main>h2,.prose>h2{font-size:clamp(28px,3.4vw,36px);margin:1.6em 0 .45em;padding-top:.3em;border-top:1px solid var(--line)}
.entry-main>h2:first-child{margin-top:0}
.entry-main h2 .fig,.prose h2 .fig{font:500 12px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--oxide-ink);display:block;margin-bottom:8px}
.abstract{background:var(--paper);border:2px solid var(--ink);padding:18px 20px 8px;margin:0 0 24px}
.abstract h2{font-size:26px;margin:0 0 10px}
.abstract ol{margin:0 0 1em;padding-left:0;list-style:none;counter-reset:ob}
.abstract ol li{counter-increment:ob;position:relative;padding:0 0 .55em 40px}
.abstract ol li::before{content:"Obs." counter(ob);position:absolute;left:0;top:.2em;font:600 11px/1.4 var(--mono);color:var(--oxide-ink);letter-spacing:.04em}
/* Spec table: What it measures / Sensor type / Validation evidence / Limits */
.spec-table{min-width:640px}
.spec-table thead th:nth-child(3){color:var(--blue)}
.spec-table thead th:nth-child(4){color:var(--oxide-ink)}
.spec-table td:first-child{font-weight:700}
.spec-table td:nth-child(2){font-family:var(--mono);font-size:13.5px}
/* Accuracy strip */
.acc-strip{list-style:none;margin:0 0 1.4em;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));border:2px solid var(--ink);background:var(--paper)}
.acc-cell{min-width:0;padding:12px 14px 14px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);border-top:6px solid var(--blue);display:flex;flex-direction:column;gap:5px}
.acc-cell.is-maker{border-top-color:var(--oxide);background:linear-gradient(var(--oxide-tint),var(--oxide-tint)) top/100% 36px no-repeat}
.acc-cell.is-indep{background:linear-gradient(var(--blue-tint),var(--blue-tint)) top/100% 36px no-repeat}
.acc-cell.is-none{border-top:6px dashed var(--muted)}
.acc-metric{font:600 11.5px/1.35 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ink);min-height:30px}
.acc-result{font:400 30px/1.05 var(--display);color:var(--ink)}
.acc-cell.is-none .acc-result{font-size:22px;color:var(--muted)}
.acc-ref{font-size:13.5px;color:var(--ink-2);line-height:1.45}
.acc-src{font:600 12px/1 var(--mono);margin-top:auto}
.acc-note{font-size:13.5px;color:var(--muted);margin-top:-.6em}
/* Aside: fact sheet + CTA */
.entry-aside{position:sticky;top:16px;display:grid;gap:16px;min-width:0}
.factsheet{background:var(--paper);border:2px solid var(--ink)}
.fs-photo{aspect-ratio:5/4;display:flex;align-items:center;justify-content:center;padding:20px;border-bottom:1.5px solid var(--ink);background-color:#FBFCFD;background-image:linear-gradient(var(--line-soft) 1px,transparent 1px),linear-gradient(90deg,var(--line-soft) 1px,transparent 1px);background-size:16px 16px}
.fs-photo img{max-height:100%;width:auto;object-fit:contain;mix-blend-mode:multiply}
.fs-nophoto{font:600 12px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.fs-head{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:12px 14px;border-bottom:1px solid var(--line)}
.fs-title{font:600 12.5px/1.2 var(--mono);letter-spacing:.1em;text-transform:uppercase;margin:0}
.fs-table{width:100%;border-collapse:collapse;font-size:14px}
.fs-table th,.fs-table td{text-align:left;vertical-align:top;padding:8px 14px;border-bottom:1px solid var(--line-soft)}
.fs-table th{font:600 11px/1.5 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);width:40%}
.fs-table tr:last-child th,.fs-table tr:last-child td{border-bottom:0}
.cta-box{background:var(--paper);border:2px solid var(--oxide);padding:14px}
.cta-box .disclosure{margin:10px 0 0}
.aside-block{background:var(--paper);border:1.5px solid var(--ink);padding:14px}
.aside-block h2,.toc-related h2{font:600 12px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;margin:0 0 10px}
.related{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.related a{display:flex;gap:10px;align-items:flex-start;color:var(--ink);text-decoration:none;padding:8px;border:1px solid var(--line-soft)}
.related a:hover{border-color:var(--ink)}
.related a>span:last-child{font-weight:600;font-size:14.5px;line-height:1.3}
.related small{display:block;font-weight:400;color:var(--muted);font-size:13px;margin-top:3px}
.related .tag{flex:none}
@media (max-width:960px){.entry-grid{grid-template-columns:minmax(0,1fr)}.entry-aside{position:static;max-width:520px}}

/* ---------- Feature (article) ---------- */
.article-head{padding:22px 0 24px}
.article-head .issue-stamp{margin-bottom:18px}
.article-kicker{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:6px}
.article-title{font-size:clamp(40px,6vw,70px);line-height:1;letter-spacing:-.02em;margin:12px 0 14px;max-width:20ch}
.article-dek{font-size:20px;color:var(--ink-2);max-width:62ch}
.article-byline{display:flex;flex-wrap:wrap;gap:6px 18px;font:500 12.5px/1.4 var(--mono);color:var(--muted);border-top:1.5px solid var(--ink);border-bottom:1px solid var(--line);padding:10px 0;margin-top:18px}
.article-byline span:first-child{color:var(--ink);font-weight:600}
.article-cover{margin:0 0 34px;border:2px solid var(--ink);background:var(--paper)}
.article-cover figcaption{font:500 12.5px/1.5 var(--mono);color:var(--muted);padding:8px 12px;border-top:1px solid var(--line)}
.article-cover figcaption b{color:var(--oxide-ink)}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:48px;align-items:start;padding-bottom:64px}
.prose{min-width:0;max-width:720px}
.prose>h2:first-of-type{margin-top:1.2em}
.prose h3{font-size:19px;margin:1.4em 0 .4em}
.prose ul,.prose ol:not(.steps):not(.sources){padding-left:1.3em}
.prose li{margin-bottom:.35em}
.finding{background:var(--paper);border:2px solid var(--blue);padding:16px 18px 6px;margin:1.6em 0;position:relative}
.finding::before{content:"Finding";position:absolute;top:-11px;left:14px;background:var(--blue);color:#fff;font:600 11px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;padding:5px 8px}
.toc{position:sticky;top:16px;background:var(--paper);border:1.5px solid var(--ink);padding:16px}
.toc h2{font:600 12px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;margin:0 0 10px}
.toc>ol{margin:0 0 14px;padding:0;list-style:none;counter-reset:tc}
.toc>ol>li{counter-increment:tc;border-top:1px solid var(--line-soft)}
.toc>ol>li>a{display:grid;grid-template-columns:30px minmax(0,1fr);padding:7px 0;font-size:14.5px;color:var(--ink);text-decoration:none;line-height:1.35}
.toc>ol>li>a::before{content:counter(tc,decimal-leading-zero);font:600 12px/1.6 var(--mono);color:var(--oxide-ink)}
.toc>ol>li>a:hover{text-decoration:underline}
.toc-related{border-top:1.5px solid var(--ink);padding-top:12px}
@media (max-width:960px){.article-grid{grid-template-columns:minmax(0,1fr)}.toc{position:static;order:-1}}

/* ---------- Docs ---------- */
.doc-head{padding:22px 0 20px;border-bottom:2px solid var(--ink);margin-bottom:26px}
.doc-head h1{font-size:clamp(40px,6vw,60px);margin:6px 0 12px}
.doc-head p{font-size:18.5px;color:var(--ink-2)}
.doc-meta{font:500 12.5px/1.4 var(--mono);color:var(--muted)}
.doc{padding-bottom:64px}
.doc h2{font-size:32px;margin:1.5em 0 .45em;padding-top:.3em;border-top:1px solid var(--line)}
.doc h3{font-size:18px}
.doc ul:not(.checklist):not(.sources){padding-left:1.3em}
.doc li{margin-bottom:.45em}
.doc-card{background:var(--paper);border:2px solid var(--ink);padding:16px 18px;margin:1.2em 0}
.doc-card dl{display:grid;grid-template-columns:140px minmax(0,1fr);gap:8px 16px;margin:0}
.doc-card dt{font:600 11.5px/1.6 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.doc-card dd{margin:0;overflow-wrap:anywhere}
@media (max-width:520px){.doc-card dl{grid-template-columns:minmax(0,1fr)}.doc-card dd{margin-bottom:8px}}

/* ---------- 404 ---------- */
.nf{padding:56px var(--gut) 72px;max-width:760px}
.nf .big{font:400 clamp(110px,22vw,200px)/.9 var(--display);color:var(--oxide);margin:0 0 10px}
.nf h1{font-size:clamp(34px,5vw,52px)}

/* ---------- Footer ---------- */
.site-footer{background:var(--paper);border-top:3px double var(--ink);margin-top:24px}
.footer-grid{max-width:var(--w);margin:0 auto;padding:40px var(--gut) 24px;display:grid;grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));gap:28px}
.footer-brand p{font-size:14.5px;color:var(--ink-2);margin-top:12px;max-width:44ch}
.site-footer h5{font:600 12px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;margin:0 0 12px}
.site-footer a{display:block;color:var(--ink);text-decoration:none;font-size:14.5px;padding:3px 0}
.site-footer a:hover{color:var(--oxide-ink);text-decoration:underline}
.footer-brand .brand{display:flex}
.footer-contact{font-style:normal;font-size:14.5px;line-height:1.6}
.footer-contact strong{display:block}
.footer-contact a{overflow-wrap:anywhere}
.linklike{background:none;border:0;padding:3px 0;font:inherit;font-size:14.5px;color:var(--blue);text-decoration:underline;cursor:pointer}
.footer-bottom{max-width:var(--w);margin:0 auto;padding:16px var(--gut) 28px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
.footer-bottom a{display:inline;color:var(--blue);text-decoration:underline;font-size:inherit;padding:0}
@media (max-width:860px){.footer-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.footer-brand{grid-column:1/-1}}
@media (max-width:480px){.footer-grid{grid-template-columns:minmax(0,1fr)}}

/* ---------- Cookie banner ---------- */
#cookieBanner{display:none;position:fixed;left:16px;right:16px;bottom:16px;z-index:50;max-width:720px;margin:0 auto;background:var(--paper);border:2px solid var(--ink);box-shadow:6px 6px 0 var(--grid-strong);padding:14px 16px;font-size:14.5px}
#cookieBanner.show{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
#cookieBanner p{margin:0;flex:1 1 320px}
.cookie-banner-actions{display:flex;gap:8px}
.cookie-banner-actions button{font:600 13px/1 var(--mono);letter-spacing:.06em;text-transform:uppercase;padding:11px 14px;border:2px solid var(--ink);cursor:pointer;background:var(--paper);color:var(--ink)}
#cbAccept{background:var(--ink);color:#fff}

/* ---------- Home responsive ---------- */
@media (max-width:960px){.cover-grid{grid-template-columns:minmax(0,1fr)}}
@media (max-width:600px){
  body{font-size:16.5px}
  .cover-sheet .issue-stamp{position:static;margin-bottom:6px}
  .cover-title{margin-top:12px}
  .cover-figs{grid-template-columns:minmax(0,1fr)}
  .cover-figs div{border-right:0;border-bottom:1px solid var(--line)}
  .cover-figs div:last-child{border-bottom:0}
  .drawer-head p{margin-left:0}
  .specimens{padding:12px;grid-template-columns:minmax(0,1fr)}
  .specimen-photo{aspect-ratio:4/3}
  .section{padding:40px 0}
}

@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}.specimen:hover{transform:none}}
@media print{body{background:#fff}.topbar,.site-footer,#cookieBanner,.cta-box{display:none}}