/* ==== pages/article.css ==== */
/* =====================================================================
   Investigation article (body[data-page="article"]). Script: assets/js/pages/article.js
   Newsroom reading layout: centred headline, a cover that eases in and opens to full-bleed, a sticky
   "On this page" column on wide screens, one full-bleed image break, the notice card, previous/next tiles.
   The CSS bundle is global, so every class is prefixed art- (plus .crumbs / .read-progress).
   ===================================================================== */

/* ---------- Header + cover ---------- */
.art-head{padding-top:calc(var(--nav-h) + clamp(48px,9vh,104px))}
.art-copy{max-width:1000px;text-align:center}
.crumbs{display:inline-flex;align-items:center;gap:10px;margin-bottom:clamp(14px,2.2vh,22px);font-size:15px;font-weight:500;color:var(--text-meta)}
.crumbs a{display:inline-flex;align-items:center;min-height:44px;color:var(--link)}
.crumbs a:hover{text-decoration:underline;text-underline-offset:3px}
.crumbs .chev{width:6px;height:10px}
.art-title{font:600 clamp(42px,6.2vw,92px)/1 var(--f-display);letter-spacing:-.038em;text-wrap:balance}
.art-dek{max-width:28em;margin:clamp(18px,2.6vh,28px) auto 0;font-size:clamp(19px,1.7vw,24px);line-height:1.38;font-weight:450;letter-spacing:-.016em;color:var(--text-2);text-wrap:balance}
.art-meta{display:flex;justify-content:center;gap:10px;margin-top:clamp(14px,2vh,20px);font-size:15px;color:var(--text-meta)}
.art-cover{margin-top:clamp(36px,5.5vw,64px)}
/* the cover eases in under the headline (then core.js opens it to full-bleed as it scrolls) */
.motion .art-cover .frame-media{animation:art-cover-in 1.9s var(--ease) .35s both}
.motion .art-cover .frame-cap{transition:opacity .4s}
@keyframes art-cover-in{from{opacity:0;transform:translate3d(0,72px,0) scale(.96)}to{opacity:1;transform:none}}

/* ---------- Body grid: TOC | prose, with a full-bleed break between the two halves ---------- */
.art-body{display:grid;grid-template-columns:200px minmax(0,1fr);grid-template-rows:auto auto auto;column-gap:clamp(48px,8vw,128px);
  padding-block:clamp(72px,11vw,144px) clamp(56px,8vw,104px)}
.art-toc{grid-column:1;grid-row:1 / span 3;position:sticky;top:calc(var(--nav-h) + 40px);align-self:start;max-height:calc(100vh - var(--nav-h) - 72px);overflow-y:auto;
  overscroll-behavior:contain;scrollbar-width:none;transition:opacity .6s var(--ease),transform .8s var(--ease)}
.art-toc::-webkit-scrollbar{display:none}
.art-toc.is-under:not(:focus-within){opacity:0;transform:translate3d(0,-12px,0);pointer-events:none}
.art-toc-h{margin-bottom:14px;font-size:13px;font-weight:600;color:var(--text)}
.art-toc ol{counter-reset:toc}
.art-toc a{display:grid;grid-template-columns:22px 1fr;padding:8px 0 8px 14px;border-left:1px solid var(--line);font-size:14px;line-height:1.35;color:var(--text-meta);
  transition:color .4s var(--ease),border-color .4s var(--ease)}
.art-toc a::before{counter-increment:toc;content:counter(toc,decimal-leading-zero);font-size:12px;line-height:1.6;font-variant-numeric:tabular-nums;color:var(--text-meta);transition:color .4s}
.art-toc a:hover{color:var(--text)}
.art-toc a[aria-current]{color:var(--text);border-color:var(--accent)}
.art-toc a[aria-current]::before{color:var(--accent)}
.art-prose{grid-column:2;max-width:36em;min-width:0}
.art-prose--a{grid-row:1}
.art-prose--b{grid-row:3}
.art-body:not(.has-break) .art-prose--b{grid-row:2}

/* ---------- Prose ----------
   Long-form rhythm: a ~68-character measure, 1.6 leading, paragraphs a line apart. Sections open with a small
   number (it matches "On this page") over a modest heading, so ten sections read as a calm sequence, not a wall. */
.art-body{counter-reset:art-sec}
.art-prose{font-size:19px;line-height:1.6;letter-spacing:-.012em;color:var(--prose);font-feature-settings:"kern","liga","calt"}
[data-theme="dark"] .art-prose{--prose:#b4b4b9}
.art-prose p{margin:0 0 1.1em}
.art-prose--a>p:first-child{margin-bottom:1.1em;font-size:clamp(22px,2vw,26px);line-height:1.42;font-weight:450;letter-spacing:-.02em;color:var(--text)}
.art-prose h2{margin:2.4em 0 .7em;font:600 clamp(27px,2.5vw,34px)/1.12 var(--f-display);letter-spacing:-.028em;color:var(--text);scroll-margin-top:calc(var(--nav-h) + 28px);text-wrap:balance}
.art-prose h2:not(.art-notice-t):not(.art-prov-h)::before{counter-increment:art-sec;content:counter(art-sec,decimal-leading-zero);display:block;margin-bottom:14px;
  font:600 13px/1 var(--f-text);letter-spacing:.02em;color:var(--text-meta);font-variant-numeric:tabular-nums}
.motion .art-prose h2:not(.art-notice-t):not(.art-prov-h)::before{opacity:0;transition:opacity 1.2s var(--ease)}
.motion .art-prose h2.is-in::before{opacity:1}
.art-prose h2:first-child{margin-top:0}
.art-prose h3{margin:1.9em 0 .5em;font:600 21px/1.25 var(--f-text);letter-spacing:-.018em;color:var(--text)}
.art-prose>:is(ul,ol){margin:.4em 0 1.6em;border-top:1px solid var(--line)}
.art-prose>:is(ul,ol)>li{position:relative;padding:14px 8px 14px 34px;border-bottom:1px solid var(--line);font-size:18px;line-height:1.45;color:var(--text)}
.art-prose>ul>li::before{content:"";position:absolute;left:2px;top:calc(14px + .725em - 1px);width:14px;height:2px;border-radius:1px;background:var(--accent);opacity:.9}
.art-prose>ol{counter-reset:art-li}
.art-prose>ol>li::before{counter-increment:art-li;content:counter(art-li);position:absolute;left:2px;top:15px;font-size:15px;font-weight:600;color:var(--accent);font-variant-numeric:tabular-nums}
.art-prose>:is(ul,ol)>li::first-letter{text-transform:uppercase}
.art-prose>:is(ul,ol)+h2{margin-top:2.1em}
.motion .art-prose li[data-reveal="rise"]{transform:translate3d(0,16px,0)}
.motion .art-prose li[data-reveal].is-in{transform:none}

/* "On this page" for phones and tablets: a quiet disclosure after the opening paragraph */
.art-jump{margin:0 0 2.2em;border-block:1px solid var(--line)}
.art-jump summary{display:flex;width:100%;justify-content:space-between;min-height:56px;color:var(--text);font-size:16px;font-weight:600}
.art-jump .more-d-s{display:flex;align-items:baseline;gap:12px}
.art-jump-n{font-size:14px;font-weight:400;color:var(--text-meta)}
.art-jump .more-d-body{padding:0 0 14px}
.art-jump ol{counter-reset:jump}
.art-jump li a{display:grid;grid-template-columns:30px 1fr;padding:9px 0;font-size:16px;line-height:1.4;color:var(--text-2)}
.art-jump li a::before{counter-increment:jump;content:counter(jump,decimal-leading-zero);font-size:13px;line-height:1.75;color:var(--text-meta);font-variant-numeric:tabular-nums}
.art-jump li a:hover{color:var(--text)}
@media (min-width:1024px){ .art-jump{display:none} }

/* ---------- Full-bleed image break ---------- */
.art-break{grid-column:1 / -1;grid-row:2;justify-self:stretch;position:relative;z-index:2;margin:clamp(56px,8vw,112px) calc(50% - 50vw)}
.art-break .frame-cap{max-width:calc(100% - 96px)}

/* ---------- Notice (Transparency Notice / Documentation) ---------- */
.art-notice{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.5fr);margin-top:clamp(48px,6vw,72px);border-radius:var(--r-lg);overflow:hidden;
  background:var(--surface);box-shadow:0 0 0 1px var(--line-soft)}
.art-notice-media{position:relative;min-height:220px;background:var(--media-bg)}
.art-notice-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:var(--img-filter)}
.art-notice-body{padding:clamp(24px,3vw,36px)}
.art-prose .art-notice-t{margin:0 0 10px;font:600 19px/1.25 var(--f-text);letter-spacing:-.016em}
.art-notice p{margin:0;font-size:16px;line-height:1.55;color:var(--text-2)}
.art-notice p+p{margin-top:.8em}
.art-notice a{color:var(--link);text-decoration:underline;text-underline-offset:3px}
@media (max-width:600px){ .art-notice{grid-template-columns:1fr} .art-notice-media{min-height:0;aspect-ratio:16/8} }

/* ---------- Previous / next ---------- */
.art-pn{display:grid;grid-template-columns:1fr 1fr;gap:20px;padding-bottom:clamp(24px,4vw,48px)}
.art-pn-i{position:relative;display:flex;align-items:flex-end;min-height:clamp(300px,30vw,420px);border-radius:var(--r-xl);overflow:hidden;background:var(--film-bg);isolation:isolate}
.art-pn-media{position:absolute;inset:0;z-index:-2;overflow:hidden}
.art-pn-media img{width:100%;height:100%;object-fit:cover;filter:var(--img-filter);transition:transform 1.6s var(--ease)}
.art-pn-i::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(to top,rgba(0,0,0,.82) 0%,rgba(0,0,0,.36) 56%,rgba(0,0,0,.1) 100%)}
.art-pn-i:hover .art-pn-media img{transform:scale(1.05)}
.art-pn-body{display:block;padding:clamp(22px,3vw,36px)}
.art-pn-body>span{display:block}
.art-pn-k{margin-bottom:8px;font-size:14px;font-weight:600;color:var(--text-meta)}
.art-pn-t{max-width:16em;font:600 clamp(24px,2.4vw,34px)/1.08 var(--f-display);letter-spacing:-.028em;color:#fff}
.art-pn-s{margin-top:10px;font-size:14px;color:var(--text-2)}
.art-pn-i:hover .art-pn-t{text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:5px}

/* ---------- Reading progress: a hairline under the nav ---------- */
.read-progress{position:fixed;left:0;right:0;top:var(--nav-h);z-index:59;height:2px;pointer-events:none;opacity:0;transition:opacity .5s var(--ease)}
.read-progress.is-on{opacity:1}
.read-progress i{display:block;height:100%;background:var(--accent);transform:scaleX(0);transform-origin:0 50%}

@media (max-width:1023px){
  .art-body{grid-template-columns:minmax(0,1fr);justify-items:center}
  .art-toc{display:none}
  .art-prose{grid-column:1;width:100%}
  .art-break{grid-column:1}
}
@media (max-width:767px){
  .art-prose{font-size:18px;line-height:1.58}
  .art-prose--a>p:first-child{font-size:21px}
  .art-prose h2{margin-top:2.1em;font-size:26px}
  .art-prose>:is(ul,ol)>li{font-size:17px}
  .art-pn{grid-template-columns:1fr;gap:14px}
  .art-pn-i{min-height:260px}
}

/* ---------- Concept notes (article.art--concept): badge, numbered ideas, one figure ----------
   Theoretical pieces are labelled at the top ("Concept note · Theoretical") and again in the status card at the end. */
.art-badge{display:flex;width:max-content;max-width:100%;margin:0 auto clamp(16px,2.4vh,26px);border-radius:var(--r-pill);overflow:hidden;
  box-shadow:inset 0 0 0 1px var(--line);font-size:14px;font-weight:600;letter-spacing:-.005em}
.art-badge span{display:inline-flex;align-items:center;min-height:34px;padding:0 16px}
.art-badge-k{background:var(--accent-tint);color:var(--accent)}
.art-badge-s{font-weight:500;color:var(--text-2)}
/* the five ideas: a hairline, a small running number, a modest heading */
.art--concept .art-prose h2{counter-reset:art-idea}
.art--concept .art-prose h3{counter-increment:art-idea;margin:2.1em 0 .5em;padding-top:20px;border-top:1px solid var(--line);font-size:22px;letter-spacing:-.02em}
.art--concept .art-prose h3::before{content:"Idea " counter(art-idea);display:block;margin-bottom:10px;font:600 13px/1 var(--f-text);letter-spacing:.02em;color:var(--accent);font-variant-numeric:tabular-nums}
.art--concept .art-prose h3:first-of-type{margin-top:1.6em}
/* lists in a concept note are written "Label: text": a label over its text on phones, a two-column table (label | text) on wide
   screens, so a seven-item list scans instead of reading as a wall. Codes and sensor names never break at their hyphen. */
.art--concept .art-prose>:is(ul,ol)>li{color:var(--text-2)}
.art-li-k{display:block;margin-bottom:3px;font-weight:600;letter-spacing:-.012em;color:var(--text)}
.art-li-v{display:block}
.art-li-v::first-letter{text-transform:uppercase}
.art-nb{white-space:nowrap}
.art--concept .art-prose>:is(ul,ol)>li:has(>.art-li-k){padding-left:0}
.art--concept .art-prose>ul>li:has(>.art-li-k)::before{display:none}
@media (min-width:768px){
  .art--concept .art-prose>:is(ul,ol)>li:has(>.art-li-k){display:grid;grid-template-columns:minmax(0,10.5em) minmax(0,1fr);column-gap:28px}
  .art-li-k{margin-bottom:0}
}

/* The figure: four steps along a hairline, then two bars (relative lengths, not measurements) */
.art-flow{margin:2.2em 0 2.4em;padding:clamp(22px,3.2vw,36px);border-radius:var(--r-lg);background:var(--surface);box-shadow:0 0 0 1px var(--line-soft)}
.art-flow-h{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:4px 16px;font-size:16px;font-weight:600;letter-spacing:-.014em;color:var(--text)}
.art-flow-tag{font-size:13px;font-weight:500;letter-spacing:0;color:var(--text-meta)}
.art-flow-steps{position:relative;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin:clamp(26px,3.4vw,38px) 0 0;padding:0;border:0}
.art-flow-steps::before,.art-flow-steps::after{content:"";position:absolute;left:0;right:0;top:0;height:1px}
.art-flow-steps::before{background:var(--line)}
.art-flow-steps::after{background:var(--accent);transform-origin:0 50%}
.art-flow-steps li{position:relative;padding:20px 0 0;border:0;font-size:14px;line-height:1.4;letter-spacing:-.008em;color:var(--text-2)}
.art-flow-steps li::before{content:"";position:absolute;left:0;top:-3px;width:7px;height:7px;border-radius:50%;background:var(--accent)}
.art-flow-steps li span{display:block;margin-bottom:6px;font-size:12px;font-weight:600;letter-spacing:.02em;color:var(--accent);font-variant-numeric:tabular-nums}
/* motion: the hairline draws left to right, the steps arrive in turn, the long bar takes its time and the short one is done at once */
.motion .art-flow-steps::after{transform:scaleX(0);transition:transform 2.2s var(--ease-io) .3s}
.motion .art-flow-steps li{opacity:0;transform:translate3d(0,10px,0);transition:opacity 1s var(--ease),transform 1.1s var(--ease)}
.motion .art-flow-steps li:nth-child(1){transition-delay:.3s}
.motion .art-flow-steps li:nth-child(2){transition-delay:.75s}
.motion .art-flow-steps li:nth-child(3){transition-delay:1.2s}
.motion .art-flow-steps li:nth-child(4){transition-delay:1.65s}
.motion .art-flow.is-in .art-flow-steps::after{transform:none}
.motion .art-flow.is-in .art-flow-steps li{opacity:1;transform:none}
@media (max-width:600px){
  .art-flow-steps{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:22px}
  .art-flow-steps::before,.art-flow-steps::after{display:none}
  .art-flow-steps li{border-top:1px solid var(--line)}
  .art-flow-steps li::before{left:0}
}

/* A concept note whose subheadings are not "ideas" (plainH3 in posts.json): plain h3s, no "Idea n" label */
.art--plain-h3 .art-prose h3::before{display:none}
.art--plain-h3 .art-prose h3{margin:1.9em 0 .5em;padding-top:18px;font-size:21px}

/* Sources: a quiet list of links under the last heading */
.art-prose>ul.art-src{margin:.4em 0 1.2em}
.art-prose>ul.art-src>li{padding:9px 0;font-size:15px;line-height:1.4;color:var(--text-2)}
.art-prose>ul.art-src>li::before{display:none}
.art-prose>ul.art-src a{color:var(--link);text-decoration:underline;text-decoration-color:var(--line);text-underline-offset:3px}
.art-prose>ul.art-src a:hover{text-decoration-color:currentColor}

/* The figure: four kinds of "Starlink data" in a small table (what it is | status | does it help spot a slick or a ship) */
.art-lad{margin:2.2em 0 2.4em;padding:clamp(22px,3.2vw,36px);border-radius:var(--r-lg);background:var(--surface);box-shadow:0 0 0 1px var(--line-soft)}
.art-lad-rows{margin:clamp(18px,2.4vw,26px) 0 0;padding:0;list-style:none;border:0}
.art-lad-head,.art-lad-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,9.5em) minmax(0,11em);gap:6px 28px;align-items:start;padding:0;border:0}
.art-lad-head{padding-bottom:10px;font-size:12px;font-weight:600;letter-spacing:.02em;color:var(--text-meta)}
.art-lad-row{padding:18px 0;border-top:1px solid var(--line-soft);font-size:15px;line-height:1.45;color:var(--text-2)}
.art-lad p{margin:0;font-size:15px;line-height:1.45;color:var(--text-2)}
.art-lad .art-lad-k{margin:0 0 4px;font-size:17px;font-weight:600;letter-spacing:-.014em;color:var(--text)}
.art-lad .art-lad-st{display:flex;align-items:baseline;gap:8px;font-weight:600;color:var(--text)}
.art-lad-st i{flex:none;width:8px;height:8px;border-radius:50%;background:var(--text-meta);transform:translateY(-1px)}
.art-lad-row--pub .art-lad-st i{background:var(--accent)}
.art-lad-row--idea .art-lad-st i{background:none;box-shadow:inset 0 0 0 1.5px var(--accent)}
.art-lad .art-lad-lab{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.motion .art-lad .art-lad-row{opacity:0;transform:translate3d(0,10px,0);transition:opacity 1s var(--ease),transform 1.1s var(--ease)}
.motion .art-lad .art-lad-row:nth-child(3){transition-delay:.15s}
.motion .art-lad .art-lad-row:nth-child(4){transition-delay:.3s}
.motion .art-lad .art-lad-row:nth-child(5){transition-delay:.45s}
.motion .art-lad.is-in .art-lad-row{opacity:1;transform:none}
@media (max-width:700px){
  .art-lad-head{display:none}
  .art-lad-row{grid-template-columns:1fr;gap:8px}
  .art-lad .art-lad-lab{position:static;display:block;width:auto;height:auto;margin-bottom:2px;overflow:visible;clip:auto;white-space:normal;font-size:12px;font-weight:600;letter-spacing:.02em;color:var(--text-meta)}
}
.art-flow .art-flow-note{margin:clamp(24px,3vw,34px) 0 0;padding-top:clamp(18px,2.4vw,24px);border-top:1px solid var(--line-soft);font-size:15px;line-height:1.5;color:var(--text-2)}

/* About this piece: provenance card at the foot of an article */
.art-prov{margin-top:clamp(28px,4vw,44px);padding:clamp(20px,2.6vw,32px);border:1px solid var(--line);border-radius:var(--r-lg)}
.art-prose .art-prov-h{margin:0 0 14px;font:600 19px/1.25 var(--f-text);letter-spacing:-.016em}
.art-prov-dl{display:grid;gap:0;margin:0}
.art-prov-dl>div{display:grid;grid-template-columns:minmax(96px,150px) minmax(0,1fr);gap:4px 20px;padding:11px 0;border-top:1px solid var(--line)}
.art-prov-dl dt{font-size:13px;font-weight:600;color:var(--text-meta)}
.art-prov-dl dd{margin:0;font-size:16px;line-height:1.5;color:var(--text-2)}
.art-prov-dl a{color:var(--link);text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--line)}
.art-prov-dl ul{margin:0;padding:0;list-style:none}
@media (max-width:600px){ .art-prov-dl>div{grid-template-columns:1fr} }

/* ==== pages/research.css ==== */
/* Research hub (prefix rs-). Restrained, editorial: type and hairlines only. */
.rs-head{padding:calc(var(--nav-h) + clamp(40px,8vh,96px)) 0 clamp(36px,6vh,64px);border-bottom:1px solid var(--line)}
.rs-head .eyebrow{margin-bottom:14px}
.rs-h1{max-width:18em;text-wrap:balance}
.rs-lead{max-width:38em;margin-top:clamp(16px,2.4vh,24px);font-size:clamp(18px,1.6vw,22px);line-height:1.5;color:var(--text-2)}
.rs-body{max-width:calc(46em + 2*var(--gutter));padding-block:clamp(40px,7vh,88px)}
.rs-sec+.rs-sec{margin-top:clamp(48px,8vh,80px)}
.rs-h{margin-bottom:clamp(16px,2.4vh,24px);font:600 clamp(24px,2.4vw,32px)/1.15 var(--f-display);letter-spacing:-.026em}
.rs-h3{margin:0 0 8px;font:600 clamp(19px,1.7vw,23px)/1.3 var(--f-display);letter-spacing:-.018em}
.rs-sec p{font-size:clamp(17px,1.35vw,19px);line-height:1.6;color:var(--text-2)}
.rs-sec p+p,.rs-sec p+ul{margin-top:1.1em}
.rs-sec a{color:var(--link);text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--line)}
.rs-sec strong{color:var(--text);font-weight:600}
.rs-rows,.rs-pubs,.rs-list{margin:0;padding:0;list-style:none;border-top:1px solid var(--line)}
.rs-row{display:grid;grid-template-columns:minmax(96px,128px) minmax(0,1fr);gap:8px 24px;padding:20px 0;border-bottom:1px solid var(--line)}
.rs-st{margin:0}
.rs-chip{display:inline-block;padding:3px 10px;border:1px solid var(--line);border-radius:var(--r-pill);font-size:13px;font-weight:600;color:var(--text)}
.rs-links{display:flex;flex-wrap:wrap;gap:4px 20px;margin-top:10px}
.rs-links a{display:inline-flex;align-items:center;gap:6px;min-height:44px;font-size:16px;text-decoration:none}
.rs-links a:hover{text-decoration:underline}
.rs-links .chev{width:6px;height:10px}
.rs-dl>div{display:grid;grid-template-columns:minmax(120px,200px) minmax(0,1fr);gap:4px 24px;padding:14px 0;border-bottom:1px solid var(--line)}
.rs-dl{border-top:1px solid var(--line);margin:0}
.rs-dl dt{font-size:15px;font-weight:600;color:var(--text)}
.rs-dl dd{margin:0;font-size:17px;line-height:1.5;color:var(--text-2)}
.rs-list li,.rs-pubs li{padding:14px 0;border-bottom:1px solid var(--line);font-size:clamp(16px,1.3vw,18px);line-height:1.5;color:var(--text-2)}
.rs-pubs li p{font-size:clamp(16px,1.3vw,18px)}
.rs-pub-k{margin-bottom:6px;font-size:13px!important;font-weight:600;color:var(--text-meta)!important}
.rs-pubs .rs-h3 a{color:var(--text);text-decoration:none}
.rs-pubs .rs-h3 a:hover{text-decoration:underline}
.rs-pub-n{margin-top:6px!important;font-size:15px!important}
.rs-after{margin-top:20px!important;font-size:15px!important;color:var(--text-meta)!important}
@media (max-width:600px){
  .rs-row,.rs-dl>div{grid-template-columns:1fr}
}