/* Lab: an index of written-up work that can be described but not shipped, and the article
   layout each note uses. Read-mode surface: open divider rows, a comfortable measure. */

/* ---------- Index ---------- */
.lab-entries{padding-bottom:96px}
.lab-entries__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:28px}
.lab-entries__head h2{font-size:clamp(1.6rem,2.6vw,2.3rem)}
.lab-list[hidden],.lab-empty[hidden],.lab-entries .filter-tabs[hidden]{display:none}
.lab-list{list-style:none;margin:0;padding:0;border-bottom:1px solid var(--border-medium)}
.lab-entry>a{display:grid;grid-template-columns:140px minmax(0,1fr) minmax(200px,280px) 24px;align-items:baseline;gap:32px;padding:30px 0;border-top:1px solid var(--border-medium);color:inherit;text-decoration:none}
.lab-entry time{font-size:13px;color:var(--text-secondary);font-variant-numeric:tabular-nums}
.lab-entry h3{font-size:clamp(1.3rem,2vw,1.75rem);letter-spacing:-.025em;transition:color 160ms ease}
.lab-entry__main p{margin-top:10px;font-size:15px;color:var(--text-secondary);max-width:62ch}
.lab-entry__meta{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--text-secondary)}
.lab-entry__meta span:first-child{color:var(--text-primary)}
.lab-entry svg{align-self:center;color:var(--text-secondary);transition:transform 220ms var(--ease-out),color 160ms ease}
.lab-empty{border-top:1px solid var(--border-medium);border-bottom:1px solid var(--border-medium);padding:44px 0;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.lab-empty p{font-size:clamp(1.15rem,1.8vw,1.5rem);letter-spacing:-.02em;max-width:40ch}

.lab-kinds{background:rgba(255,255,255,.022);padding-block:84px}
.lab-kinds__layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.6fr);gap:80px}
.lab-kinds h2{font-size:clamp(1.8rem,3.2vw,3rem)}
.lab-kinds__list article{padding-block:24px;border-top:1px solid #383c47}
.lab-kinds__list article:first-child{padding-top:4px;border:0}
.lab-kinds__list h3{font-size:22px}
.lab-kinds__list p{margin-top:10px;font-size:15px;color:var(--text-secondary);max-width:58ch}

@media(hover:hover) and (pointer:fine){
 .lab-entry>a:hover h3{color:#b9c4ff}
 .lab-entry>a:hover svg{transform:translate(3px,-3px);color:var(--text-primary)}
}

/* ---------- Article ---------- */
.lab-article{padding-top:calc(var(--nav-height) + 48px);padding-bottom:96px}
.lab-article__back{margin-bottom:28px;color:var(--text-secondary)}

.lab-article__header h1{max-width:20ch;font-size:clamp(2.4rem,5.2vw,4.6rem)}
.lab-article__lead{margin-top:26px;font-size:clamp(1.05rem,1.4vw,1.25rem);line-height:1.6;color:var(--text-secondary);max-width:64ch}
.lab-article__layout{display:grid;grid-template-columns:200px minmax(0,1fr);gap:48px;margin-top:56px;padding-top:32px;border-top:1px solid var(--border-medium)}
.lab-article__meta{margin:0;display:flex;flex-direction:column;gap:20px;align-self:start;position:sticky;top:calc(var(--nav-height) + 24px)}
.lab-article__meta dt{font-size:12px;color:var(--text-muted)}
.lab-article__meta dd{margin:4px 0 0;font-size:14px;color:var(--text-primary)}
.lab-article__body{max-width:70ch;font-size:17px;line-height:1.7}
.lab-article__body--split{max-width:none}
.lab-article__body>*+*,.lab-section__prose>*+*{margin-top:1.1em}
.lab-section{display:grid;grid-template-columns:minmax(0,64ch) minmax(380px,1fr);gap:52px;align-items:start;padding-top:48px;margin-top:48px;border-top:1px solid var(--border-subtle)}
.lab-section:first-child{padding-top:0;margin-top:0;border-top:0}
.lab-section__prose{min-width:0}
.lab-section__media{min-width:0;position:sticky;top:calc(var(--nav-height) + 24px);display:flex;flex-direction:column;gap:28px}
.lab-section__media figure{margin:0}
.lab-article__body h2{font-size:clamp(1.5rem,2.4vw,2.1rem);margin-top:2.2em;margin-bottom:.2em}
.lab-article__body h2:first-child,.lab-section__prose h2:first-child{margin-top:0}
.lab-article__body h3{font-size:1.25rem;margin-top:1.8em}
.lab-article__body ul,.lab-article__body ol{padding-left:1.3em}
.lab-article__body li+li{margin-top:.4em}
.lab-article__body a{color:#b9c4ff;text-decoration:underline;text-underline-offset:.2em;text-decoration-thickness:1px}
.lab-article__body code{font-size:.9em;background:var(--bg-raised);border:1px solid var(--border-subtle);border-radius:4px;padding:.1em .35em}
.lab-article__body pre{background:var(--bg-raised);border:1px solid var(--border-subtle);border-radius:8px;padding:16px 20px;overflow-x:auto;font-size:14px;line-height:1.55}
.lab-article__body pre code{background:none;border:0;padding:0;font-size:inherit}
.lab-article__body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:14px;line-height:1.5}
.lab-article__body th,.lab-article__body td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border-subtle);vertical-align:top}
.lab-article__body th{color:var(--text-muted);font-weight:500;font-size:12px;border-bottom:1px solid var(--border-medium)}
.lab-article__body td{color:var(--text-secondary)}
.lab-article__body td:first-child{color:var(--text-primary);white-space:nowrap}
.lab-article__body figure{margin:2em 0}
.lab-article__pair{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.lab-article__body img{display:block;width:100%;height:auto;border-radius:12px;background:#191b21;border:1px solid var(--border-subtle)}
.lab-img-trigger{position:relative;display:block;width:100%;padding:0;margin:0;border:0;background:none;border-radius:12px;cursor:zoom-in;text-align:left;color:inherit}
.lab-img-trigger:focus-visible{outline:3px solid var(--focus-ring,#7186ff);outline-offset:4px}
.lab-img-trigger img{transition:transform 260ms var(--ease-out,ease),border-color 180ms ease}
.lab-img-trigger__badge{position:absolute;right:10px;bottom:10px;display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:999px;background:rgba(17,18,20,.82);border:1px solid rgba(255,255,255,.16);color:var(--text-primary);font-size:11px;line-height:1;pointer-events:none;backdrop-filter:blur(6px);transition:background-color 160ms ease,border-color 160ms ease}
.lab-img-trigger__badge svg{width:13px;height:13px;flex-shrink:0}
@media(hover:hover) and (pointer:fine){
 .lab-img-trigger:hover img{border-color:#6374d8}
 .lab-img-trigger:hover .lab-img-trigger__badge{background:#4f61cd;border-color:#7186ff}
}
.lab-article__body figcaption{margin-top:12px;font-size:13px;line-height:1.55;color:var(--text-secondary)}

/* ---------- Fullscreen Lightbox ---------- */
.lab-lightbox{position:fixed;inset:0;z-index:1200;display:flex;flex-direction:column;background:rgba(11,13,17,.95);backdrop-filter:blur(10px);opacity:0;pointer-events:none;transition:opacity 180ms ease}
.lab-lightbox.is-open{opacity:1;pointer-events:auto}
.lab-lightbox[hidden]{display:none}
.lab-lightbox__bar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px clamp(14px,2vw,28px);border-bottom:1px solid var(--border-subtle);background:rgba(17,18,20,.88);flex-shrink:0}
.lab-lightbox__count{font-size:13px;color:var(--text-secondary);font-variant-numeric:tabular-nums}
.lab-lightbox__actions{display:flex;align-items:center;gap:8px}
.lab-lightbox__btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:42px;min-width:42px;padding:0 14px;border-radius:999px;border:1px solid var(--border-medium);background:var(--bg-raised);color:var(--text-primary);font:inherit;font-size:13px;font-weight:500;cursor:pointer;transition:background-color 150ms ease,border-color 150ms ease}
.lab-lightbox__btn:hover{background:#282c35;border-color:#6374d8}
.lab-lightbox__btn[aria-pressed="true"]{background:var(--accent-primary,#4f61cd);border-color:#7186ff;color:#fff}
.lab-lightbox__btn:focus-visible{outline:3px solid var(--focus-ring,#7186ff);outline-offset:3px}
.lab-lightbox__stage{flex:1;min-height:0;display:flex;align-items:center;justify-content:center;overflow:auto;padding:clamp(12px,2.5vw,32px);-webkit-overflow-scrolling:touch;touch-action:pan-x pan-y pinch-zoom}
.lab-lightbox__img{display:block;max-width:100%;max-height:100%;width:auto;height:auto;border-radius:10px;background:#191b21;border:1px solid var(--border-subtle);cursor:zoom-in;user-select:none;transition:width 180ms ease}
.lab-lightbox.is-zoomed .lab-lightbox__stage{align-items:flex-start;justify-content:flex-start}
.lab-lightbox.is-zoomed .lab-lightbox__img{max-width:none;max-height:none;width:max(175vw,1380px);cursor:grab}
.lab-lightbox.is-zoomed .lab-lightbox__img.is-portrait{width:max(115vw,680px)}
.lab-lightbox.is-dragging .lab-lightbox__img{cursor:grabbing}
.lab-lightbox__caption{padding:12px clamp(16px,2.5vw,32px) 16px;border-top:1px solid var(--border-subtle);background:rgba(17,18,20,.88);font-size:13px;line-height:1.5;color:var(--text-secondary);text-align:center;flex-shrink:0}
.lab-article__boundary{margin-top:2.4em;padding:24px 0;border-top:1px solid var(--border-medium);border-bottom:1px solid var(--border-medium)}
.lab-article__boundary h2{font-size:1.25rem;margin:0 0 .5em}
.lab-article__boundary p{font-size:15px;color:var(--text-secondary)}

@media(max-width:1240px){
 .lab-section{grid-template-columns:minmax(0,1fr);gap:28px}
 .lab-section__media{position:static}
 .lab-article__body--split{max-width:72ch}
}

@media(max-width:1050px){
 .lab-entry>a{grid-template-columns:110px minmax(0,1fr) 24px;gap:24px}
 .lab-entry__meta{grid-column:2;grid-row:2;flex-direction:row;flex-wrap:wrap;gap:4px 16px}
 .lab-entry svg{grid-column:3;grid-row:1/3}
 .lab-kinds__layout{gap:48px}
 .lab-article__layout{grid-template-columns:200px minmax(0,1fr);gap:40px}
}
@media(max-width:760px){
 .lab-entry>a{grid-template-columns:minmax(0,1fr) 22px;gap:8px 12px;padding:24px 0}
 .lab-entry time{grid-column:1;grid-row:1;font-size:12px}
 .lab-entry__main{grid-column:1;grid-row:2}
 .lab-entry__meta{grid-column:1;grid-row:3;font-size:12px;margin-top:6px}
 .lab-entry svg{grid-column:2;grid-row:1/4}
 .lab-entry__main p{font-size:14px}
 .lab-kinds{padding-block:56px}
 .lab-kinds__layout{grid-template-columns:1fr;gap:28px}
 .lab-kinds__list article:first-child{border-top:1px solid #383c47;padding-top:22px}
 .lab-entries{padding-bottom:60px}
 .lab-article{padding-top:calc(var(--nav-height) + 30px);padding-bottom:60px}
 .lab-article__layout{grid-template-columns:1fr;gap:28px;margin-top:36px}
 .lab-article__meta{position:static;display:grid;grid-template-columns:1fr 1fr;gap:16px 20px}
 .lab-article__body{font-size:16px}
}
.lab-article__body ul{list-style:disc}.lab-article__body ol{list-style:decimal}.lab-article__body li::marker{color:var(--text-muted)}