/* Lab shell: the ipvx.org header and footer, the lab bar with its jump line, and the section tabs.
   Header and footer follow the portal's own rules (assets/portal.css, relcom.css in ipvx-research);
   colors come from tokens.css only. */
:root{--page:clamp(16px,3vw,48px)}
body{font-size:14px}
a{text-underline-offset:.22em;text-decoration-thickness:1px}
a:hover{text-decoration-color:var(--signal-active)}

.site-header{padding:20px var(--page);display:flex;align-items:center;gap:36px;border-bottom:1px solid var(--rule)}
.wordmark{font-size:29px;line-height:1.1;font-weight:600;letter-spacing:-.025em;text-decoration:none;white-space:nowrap}
.wordmark span{font-weight:400;font-size:14px;letter-spacing:0;display:block;margin-top:4px;color:var(--muted)}
.site-nav{display:flex;gap:4px;flex:1;flex-wrap:wrap}
.site-nav a,.source-link{padding:10px 12px;text-decoration:none;font-size:14px;line-height:1.6;min-height:44px;display:inline-flex;align-items:center;border-radius:6px;white-space:nowrap}
.site-nav a:hover,.source-link:hover{background:var(--button-hover)}
.header-actions{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.source-link[aria-current=page]{background:var(--button-hover);font-weight:600}.nav-sep{width:1px;align-self:center;height:20px;background:var(--control);margin:0 8px;flex:none}.header-actions .source-link.lab-link{border:1px solid var(--control);margin-left:8px;font-weight:500}.header-actions .source-link.lab-link[aria-current=page]{font-weight:600}
.language-switch{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:4px;padding:4px var(--page);border-bottom:1px solid var(--rule)}.language-switch a{padding:8px 12px;text-decoration:none;font-size:14px;line-height:1.6;min-height:44px;display:inline-flex;align-items:center;border-radius:6px}.language-switch a:hover{background:var(--button-hover)}.language-switch a[aria-current=page]{background:var(--button-hover);font-weight:600}

/* The lab band: what this stand is, where to go in it, and whether it answers. */
.lab-band{background:var(--surface);border-bottom:1px solid var(--rule)}
.lab-bar{display:grid;grid-template-columns:auto minmax(280px,620px) 1fr auto;grid-template-areas:"title jump state copy";align-items:center;gap:16px 24px;padding:16px var(--page)}
.lab-title{grid-area:title}.jump{grid-area:jump}.lab-state{grid-area:state}.copy-address{grid-area:copy}
.lab-title{font-size:20px;font-weight:600;letter-spacing:-.02em;line-height:1.2;text-decoration:none;white-space:nowrap}
.lab-title span{display:block;margin-top:2px;font-size:12px;font-weight:400;letter-spacing:0;color:var(--muted)}
.lab-state{display:flex;align-items:center;justify-content:flex-end;flex-wrap:wrap;gap:4px 16px;font-size:13px;color:var(--muted);min-width:0}
.lab-state code{font:12px/1.5 PlexMono,monospace;color:var(--ink);white-space:nowrap}
#address{max-width:28ch;overflow:hidden;text-overflow:ellipsis;padding:2px 6px;border-radius:4px;background:var(--raised)}
#health[data-state]{display:inline-flex;align-items:center;gap:6px;color:var(--ink)}
#health[data-state]::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--unknown)}
#health[data-state=up]::before{background:var(--positive)}
#health[data-state=partial]::before{background:var(--warning)}
#health[data-state=down]::before{background:var(--negative)}
.copy-address{min-height:40px;padding:8px 12px;font-size:13px}

.jump{position:relative;display:flex;align-items:center;height:44px;border:1px solid var(--control);border-radius:6px;background:var(--surface);color:var(--muted)}
.jump:focus-within{border-color:var(--ink)}
.jump .icon{width:16px;height:16px;margin-left:13px;flex:none;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round}
.jump input{flex:1;min-width:0;height:100%;padding:0 12px;border:0;background:transparent;color:var(--ink);font:14px Plex,Arial,sans-serif;outline:none}
.jump input::placeholder{color:var(--muted)}
.jump:has(input:focus-visible){outline:3px solid var(--focus);outline-offset:3px}
.jump kbd{margin-right:10px;padding:1px 7px;border:1px solid var(--control);border-radius:4px;font:12px PlexMono,monospace;color:var(--muted)}
.jump-list{position:absolute;z-index:20;top:calc(100% + 6px);left:-1px;right:-1px;margin:0;padding:6px;list-style:none;background:var(--surface);border:1px solid var(--control);border-radius:6px;max-height:min(420px,60vh);overflow:auto}
.jump-list [role=option]{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:2px 16px;padding:10px 12px;border-radius:4px;cursor:pointer;color:var(--ink)}
.jump-list [role=option] span{font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.jump-list [role=option] code{font:12px/1.6 PlexMono,monospace;color:var(--muted);white-space:nowrap}
.jump-list [role=option] small{grid-column:1/-1;font-size:12px;color:var(--muted)}
.jump-list [aria-selected=true]{background:var(--signal-fill)}
.jump-list [aria-selected=true] code{color:var(--ink)}
.jump-empty{padding:10px 12px;font-size:13px;color:var(--muted)}

/* Sections of the stand: live work in front, earlier stages behind one menu. */
.lab-tabs{display:flex;align-items:stretch;padding:0 var(--page)}
.tab-scroll{display:flex;align-items:stretch;gap:2px;min-width:0;overflow-x:auto;scrollbar-width:none}
.tab-scroll.more{-webkit-mask-image:linear-gradient(90deg,var(--ink) calc(100% - 36px),transparent);mask-image:linear-gradient(90deg,var(--ink) calc(100% - 36px),transparent)}
.tab-scroll::-webkit-scrollbar{display:none}
.tab{display:inline-flex;align-items:center;gap:6px;min-height:48px;padding:0 14px;border:0;border-bottom:2px solid transparent;background:none;color:var(--muted);font:15px/1.4 Plex,Arial,sans-serif;text-decoration:none;white-space:nowrap;cursor:pointer;border-radius:0}
.tab:hover{color:var(--ink);background:none}
.tab.active,.tab[aria-current=page]{color:var(--ink);font-weight:600;border-bottom-color:var(--signal-active)}
.tab-group{display:inline-flex;align-items:center;margin-left:18px;padding:0 6px 0 18px;border-left:1px solid var(--rule);font-size:12px;color:var(--muted);white-space:nowrap}
.archive{position:relative;margin-left:auto;display:flex}
.archive .icon{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;transition:transform .18s cubic-bezier(.2,.8,.2,1)}
.archive-toggle[aria-expanded=true] .icon{transform:rotate(180deg)}
.archive-menu{position:absolute;z-index:20;top:calc(100% - 1px);right:0;min-width:260px;padding:6px;background:var(--surface);border:1px solid var(--control);border-radius:6px}
.menu-item{display:flex;justify-content:space-between;align-items:center;gap:16px;min-height:44px;padding:0 12px;border-radius:4px;text-decoration:none;font-size:14px}
.menu-item:hover{background:var(--button-hover)}
.menu-item[aria-current=page]{background:var(--nav-active);font-weight:600}
.menu-item span{font:12px PlexMono,monospace;color:var(--muted)}
.menu-item.sub{padding-left:28px}

/* Shared view anatomy: a heading, one lead, a list of facts, a sticky bar of the view's blocks,
   and blocks on one rhythm. Each block carries an address (#view/section=name). */
.view-head{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px 48px;align-items:start;padding-bottom:28px}
.view-head h1{font-size:44px;line-height:1.1;letter-spacing:-.03em;margin:0 0 12px}
.page-head .view-lead{font-size:18px;line-height:1.55;max-width:60ch;margin:0 0 20px}
.view-facts{display:grid;grid-template-columns:repeat(3,max-content);gap:12px 40px;margin:0;padding:16px 0;border-block:1px solid var(--rule)}
.view-facts dt{font-size:12px;color:var(--muted)}
.view-facts dd{margin:2px 0 0;font-size:14px;line-height:1.5}
.view-facts code{font:13px PlexMono,monospace;color:var(--ink)}
.view-sections{position:sticky;top:0;z-index:5;display:flex;gap:2px;overflow-x:auto;scrollbar-width:none;margin:0 calc(-1 * var(--page));padding:0 var(--page);background:var(--surface);border-block:1px solid var(--rule)}
.view-sections::-webkit-scrollbar{display:none}
.view-sections a{display:inline-flex;align-items:center;min-height:44px;padding:0 12px;font-size:14px;color:var(--muted);text-decoration:none;white-space:nowrap;border-bottom:2px solid transparent}
.view-sections a:hover{color:var(--ink)}
.view-sections a[aria-current]{color:var(--ink);font-weight:600;border-bottom-color:var(--signal-active)}
.view-block{scroll-margin-top:60px;margin-top:56px;padding-top:24px;border-top:1px solid var(--ink)}
.view-block:focus{outline:none}
.view-block>h2:first-child,.view-block-title{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;font-size:22px;line-height:1.3;letter-spacing:-.015em;margin-bottom:12px}
.view-block>h2:first-child{margin-top:0}
.view-block .badge{font-size:12px;font-weight:400;letter-spacing:0}
/* Right under the section bar its rule already opens the view: the first block adds no second one. */
#scale-content>.view-block:first-child{margin-top:28px;padding-top:0;border-top:0}
#evidence-content>.ev-summary:first-child{border-top:0;border-bottom:0}
/* Archive views keep their blocks beside the bar; prose pages keep blocks inside one reading column. */
.view-sections~.view-block:first-of-type,.view-sections+.prose>.view-block:first-child{margin-top:28px;padding-top:0;border-top:0}
.view-block h3{font-size:16px;line-height:1.4;margin:20px 0 8px}

/* The working sheet sits on the stone ground like a portal section. */
.sheet{display:block;max-width:1600px;margin:8px auto 0;padding:36px var(--page) 40px;background:var(--surface);min-height:60vh}

.site-footer{border-top:1px solid var(--rule);margin-top:48px;padding:40px var(--page);display:grid;grid-template-columns:1fr 2fr;gap:20px 40px;font-size:16px;line-height:1.6;color:var(--ink)}
.site-footer p{margin:0}
.footer-links{display:flex;gap:8px 24px;flex-wrap:wrap}
.site-footer .small{grid-column:2;max-width:68ch;font-size:13px;color:var(--muted)}
.sheet p,.sheet li,.site-footer p{text-wrap:pretty}
.sheet h1,.sheet h2,.sheet h3{text-wrap:balance}

@media(max-width:1250px){.lab-bar{grid-template-columns:auto 1fr auto;grid-template-areas:"title jump copy" "state state state"}.lab-state{justify-content:flex-start}}
@media(max-width:1260px){.site-header{gap:12px 24px;flex-wrap:wrap}.site-nav{order:3;flex-basis:100%;margin-left:-12px}.header-actions{margin-left:auto}}
@media(min-width:701px) and (max-width:900px){.site-nav{flex-wrap:nowrap;overflow-x:auto}.site-nav a{white-space:nowrap}}
@media(max-width:700px){
 .view-sections{margin:0 -16px;padding:0 40px 0 16px;-webkit-mask-image:linear-gradient(90deg,var(--ink) calc(100% - 36px),transparent);mask-image:linear-gradient(90deg,var(--ink) calc(100% - 36px),transparent)}
 .site-header{padding:16px;gap:12px}
 .site-nav{flex-wrap:nowrap;overflow-x:auto;flex-basis:calc(100% + 32px);margin:0 -16px;padding:0 48px 0 16px;gap:2px;scrollbar-width:none;-webkit-mask-image:linear-gradient(90deg,var(--ink) calc(100% - 40px),transparent);mask-image:linear-gradient(90deg,var(--ink) calc(100% - 40px),transparent)}
 .site-nav::-webkit-scrollbar{display:none}
 .site-nav a{padding:8px 10px;min-height:40px;flex:none}
 .language-switch{justify-content:flex-start;padding:0 16px;gap:0}.language-switch a{padding:10px 8px;font-size:13px}
 .header-actions{gap:0}.header-actions .source-link{font-size:13px;padding:10px 6px}.header-actions .source-link.repo-link{display:none}.header-actions .source-link.lab-link{margin-left:4px}.nav-sep{margin:0 4px}
 .lab-bar{grid-template-columns:1fr auto;grid-template-areas:"title copy" "jump jump" "state state";gap:12px;padding:16px}
 .lab-state{gap:4px 12px}
 .lab-tabs{padding:0 0 0 8px}
 .tab-group{display:none}
 .tab{padding:0 10px;font-size:14px}
 .archive-toggle{padding-right:16px}
 .archive-menu{right:8px}
 .sheet{margin-top:0;padding:24px 16px 32px}
 .site-footer{grid-template-columns:1fr;padding:32px 20px;gap:24px}.site-footer .small{grid-column:1}
}
@media(max-width:960px){.view-head{grid-template-columns:1fr;row-gap:12px}.view-facts{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){.view-head h1{font-size:30px}.page-head .view-lead{font-size:16px}.view-facts{gap:10px 16px}.view-block{margin-top:40px}}
@media(max-width:420px){.wordmark{font-size:24px}.jump kbd{display:none}}