/* Nexus Observatory kit. Colour, type, space and motion come from the token block (system/tokens/tokens.json). */
/* tokens:begin — generated from system/tokens/tokens.json by `node tools/nxo.mjs tokens`; edit the tokens, not this block */
@font-face{font-family:"IBM Plex Sans";src:url(fonts/plex-sans-400.woff2) format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Sans";src:url(fonts/plex-sans-500.woff2) format("woff2");font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Sans";src:url(fonts/plex-sans-600.woff2) format("woff2");font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Mono";src:url(fonts/plex-mono-400.woff2) format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Mono";src:url(fonts/plex-mono-500.woff2) format("woff2");font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Sans Condensed";src:url(fonts/plex-sans-condensed-500.woff2) format("woff2");font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Sans Fallback";src:local("Arial"),local("Liberation Sans"),local("Helvetica");size-adjust:101.82%;ascent-override:100.67%;descent-override:27.01%;line-gap-override:0%}
@font-face{font-family:"IBM Plex Mono Fallback";src:local("Courier New"),local("Liberation Mono"),local("Menlo");size-adjust:99.98%;ascent-override:102.52%;descent-override:27.50%;line-gap-override:0%}
:root{--bg:#000;--surface:#0a0a0a;--elev:#111;--muted:#141414;--hover:#1a1a1a;--hair:rgba(255,255,255,.08);--hair2:rgba(255,255,255,.20);--t1:#fff;--t2:#d4d4d4;--t3:#a3a3a3;--accent:#FF1F1F;--accent-bg:#3A0404;--btn-primary-hover:#FF4A3D;--code-string:#FF7A6E;--code-comment:#8c8c8c;--accent-graphic:#FF1F1F;--accent-hot:#FF4A3D;--accent-text:#FF1F1F;--accent-glint:#FFE1DD;--on-accent:#000;--accent-pressed:#D91414;--on-accent-pressed:#fff;--ink:255,255,255;--paper:0,0,0;--ramp-1:#1A0303;--ramp-2:#4D0606;--ramp-3:#8A0A0A;--ramp-4:#D91414;--ramp-5:#FF1F1F;--ramp-6:#FF7A6E;--ramp-7:#FFE1DD;color-scheme:dark;--r:5px;--rc:4px;--sans:"IBM Plex Sans","IBM Plex Sans Fallback",system-ui,sans-serif;--mono:"IBM Plex Mono","IBM Plex Mono Fallback",ui-monospace,monospace;--condensed:"IBM Plex Sans Condensed","IBM Plex Sans",sans-serif;--display:var(--mono);--cond:var(--sans);--numeric:tabular-nums slashed-zero;--scene-filter-light:invert(1) hue-rotate(178deg) saturate(3.4);--track-display-1:-0.045em;--track-display-2:-0.045em;--track-title:-0.012em;--track-lede:-0.008em;--track-sub:-0.008em;--track-body:0;--track-small:0;--track-eyebrow:0.16em;--track-nav:0.06em;--track-data:0;--track-button:-0.005em;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:24px;--space-6:32px;--space-7:48px;--space-8:64px;--space-gutter:48px;--space-gutter-md:20px;--space-gutter-sm:16px;--space-section:120px;--space-section-md:88px;--space-page-max:1440px;--space-nav-h:64px;--dur-fast:150ms;--dur-base:250ms;--dur-slow:600ms;--ease-standard:cubic-bezier(0.2,0,0,1);--ease-out:cubic-bezier(0,0,0.2,1);--z-content:2;--z-caption:3;--z-sticky:10;--z-nav:20;--z-site-bar:30;--z-overlay:40;--z-consent:50;--shadow-menu:0 40px 80px rgba(var(--paper),.6);--shadow-marker:inset 2px 0 #FF1F1F}
:root[data-theme=light]{--bg:#fff;--surface:#f6f6f5;--elev:#efefee;--muted:#ebebea;--hover:#e5e5e4;--hair:rgba(0,0,0,.09);--hair2:rgba(0,0,0,.22);--t1:#0a0a0a;--t2:#2b2b2b;--t3:#5c5c5c;--accent:#FF1F1F;--accent-bg:#FFF0EE;--btn-primary-hover:#FF4A3D;--code-string:#8A0A0A;--code-comment:#6b6b6b;--accent-graphic:#FF1F1F;--accent-hot:#FF4A3D;--accent-text:#0a0a0a;--accent-glint:#FFE1DD;--on-accent:#000;--accent-pressed:#D91414;--on-accent-pressed:#fff;--ink:0,0,0;--paper:255,255,255;--ramp-1:#FFF0EE;--ramp-2:#FFC6BF;--ramp-3:#FF7A6E;--ramp-4:#FF1F1F;--ramp-5:#D91414;--ramp-6:#8A0A0A;--ramp-7:#4D0606;color-scheme:light}
@media (prefers-color-scheme:light){:root:not([data-theme]){--bg:#fff;--surface:#f6f6f5;--elev:#efefee;--muted:#ebebea;--hover:#e5e5e4;--hair:rgba(0,0,0,.09);--hair2:rgba(0,0,0,.22);--t1:#0a0a0a;--t2:#2b2b2b;--t3:#5c5c5c;--accent:#FF1F1F;--accent-bg:#FFF0EE;--btn-primary-hover:#FF4A3D;--code-string:#8A0A0A;--code-comment:#6b6b6b;--accent-graphic:#FF1F1F;--accent-hot:#FF4A3D;--accent-text:#0a0a0a;--accent-glint:#FFE1DD;--on-accent:#000;--accent-pressed:#D91414;--on-accent-pressed:#fff;--ink:0,0,0;--paper:255,255,255;--ramp-1:#FFF0EE;--ramp-2:#FFC6BF;--ramp-3:#FF7A6E;--ramp-4:#FF1F1F;--ramp-5:#D91414;--ramp-6:#8A0A0A;--ramp-7:#4D0606;color-scheme:light}}
/* tokens:end */
*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--t1);font:400 14px/1.5 var(--sans);-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.w{max-width:1440px;margin:0 auto;padding:0 48px}
.eyebrow{font:500 11px/1.4 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--t3)}
.eyebrow b{color:var(--accent-text);font-weight:500}
/* nav: 64px, canvas, hairline */
.nav{position:fixed;inset:0 0 auto 0;z-index:20;background:var(--bg);border-bottom:1px solid var(--hair)}
.nav .w{display:flex;align-items:center;height:64px;gap:40px}
.logo{display:flex;align-items:center;gap:10px;font:600 15px/1 var(--sans);letter-spacing:.04em;text-transform:uppercase}
.logo i{width:8px;height:8px;border-radius:50%;background:var(--accent)}
.links{display:flex;gap:28px;font-size:14px;color:var(--t3)}.links a:hover{color:var(--t1)}
.sp{flex:1}.navr{display:flex;gap:8px;align-items:center}
/* buttons: .nf-ui-btn — 5px, 36px default, 44px marketing, sentence case */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:36px;padding:0 14px;border-radius:var(--r);font:500 14px/1 var(--sans);border:1px solid transparent;transition:background .15s,border-color .15s;white-space:nowrap}
.btn[data-size=lg]{height:44px;padding:0 18px;font-size:15px}
.btn[data-variant=primary]{background:var(--accent);color:var(--on-accent)}.btn[data-variant=primary]:hover{background:var(--btn-primary-hover)}
.btn[data-variant=secondary]{border-color:var(--hair2);color:var(--t1)}.btn[data-variant=secondary]:hover{background:var(--hover)}
.btn[data-variant=ghost]{color:var(--t2);background:transparent}.btn[data-variant=ghost]:hover{color:var(--t1);background:var(--hover)}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
/* badge: mono uppercase 4px, hairline-strong, dot */
.badge{display:inline-flex;align-items:center;gap:7px;height:22px;padding:0 8px;border-radius:var(--rc);border:1px solid var(--hair2);font:500 10.5px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--t2)}
.badge:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
/* hero */
.hero{position:relative;height:100vh;min-height:760px;overflow:hidden;border-bottom:1px solid var(--hair)}
#globe{position:absolute;inset:0;width:100%;height:100%}
.hero .w{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:center;pointer-events:none}.hero .w *{pointer-events:auto}
.hrow{display:flex;gap:14px;align-items:center}
h1{margin:22px 0 20px;font:500 clamp(40px,4.4vw,64px)/1.04 var(--sans);letter-spacing:-.03em;max-width:18ch}
.lede{max-width:60ch;font-size:17px;line-height:1.55;color:var(--t2);margin:0 0 32px}
.cta{display:flex;gap:10px;flex-wrap:wrap}
.facts{display:flex;gap:0;margin:44px 0 0;padding:0;border-top:1px solid var(--hair);max-width:560px}
.facts div{padding:14px 28px 0 0}.facts dt{font:500 11px var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--t3)}.facts dd{margin:6px 0 0;font:500 15px var(--mono);font-variant-numeric:tabular-nums}
/* count band */
.band .w{display:grid;grid-template-columns:repeat(4,1fr)}
.m{padding:32px 24px 28px 0;border-left:1px solid var(--hair);padding-left:24px}.m:first-child{border-left:0;padding-left:0}
.m b{display:block;font:500 32px/1.1 var(--mono);letter-spacing:-.01em;font-variant-numeric:tabular-nums;margin:10px 0 6px}.m:first-child b{color:var(--accent)}.m span{font-size:13px;color:var(--t3)}
.band{border-bottom:1px solid var(--hair)}
/* sections */
section.s{padding:120px 0;border-bottom:1px solid var(--hair)}
h2{margin:14px 0 14px;font:500 clamp(30px,2.8vw,40px)/1.12 var(--sans);letter-spacing:-.028em;max-width:24ch}
.sub{font-size:15px;line-height:1.55;color:var(--t2);max-width:62ch;margin:0 0 48px}
/* pp-cells: 1px hairline gutters, no radius */
.cells{display:grid;gap:1px;background:var(--hair);border:1px solid var(--hair)}
.cell{position:relative;background:var(--bg);padding:24px;display:flex;flex-direction:column;min-height:260px;overflow:hidden;transition:background .15s}
.cell:hover{background:var(--surface)}
.cell h3{margin:auto 0 6px;font:500 15px/1.35 var(--sans);letter-spacing:-.01em}.cell p{margin:0;font-size:13px;line-height:1.5;color:var(--t2);max-width:46ch}
.bento{grid-template-columns:repeat(6,1fr);grid-auto-rows:280px}
.c3{grid-column:span 3}.c2{grid-column:span 2}.c4{grid-column:span 4}.tall{grid-row:span 2}
.viz{position:absolute;left:0;right:0;top:44px;height:calc(100% - 150px);width:100%;pointer-events:none}
.states{position:absolute;left:24px;right:24px;top:64px;display:flex;flex-direction:column;gap:10px;font:400 12px var(--mono)}
.st{display:flex;align-items:center;gap:12px;color:var(--t3)}.st i{width:7px;height:7px;border-radius:50%;border:1px solid currentColor;flex:none}
.st.on{color:var(--t1)}.st.on i{background:var(--t1);border-color:var(--t1)}.st.cur{color:var(--t1)}.st.cur i{background:var(--accent);border-color:var(--accent-text)}
.st em{font-style:normal;color:var(--t3);margin-left:auto;font-size:11px}
/* products */
.prod{grid-template-columns:repeat(4,1fr)}
.prod .cell{min-height:220px}
.prod svg{width:40px;height:40px;stroke:var(--t1);fill:none;stroke-width:1.2}
.prod .cell:hover svg{stroke:var(--accent)}
.prod .go{margin-top:14px;font:500 12px var(--mono);color:var(--t3)}.prod .cell:hover .go{color:var(--t1)}
/* open */
.open{display:grid;grid-template-columns:1fr 1.1fr;gap:64px;align-items:center}
.ol{list-style:none;padding:0;margin:0;border-top:1px solid var(--hair)}.ol li{display:grid;grid-template-columns:170px 1fr;gap:18px;padding:16px 0;border-bottom:1px solid var(--hair)}
.ol b{font-weight:500;font-size:14px}.ol span{color:var(--t2);font-size:13.5px}
.code{border-radius:var(--r);border:1px solid var(--hair2);background:var(--surface);overflow:hidden;font:400 13px/1.75 var(--mono)}
.code .bar{display:flex;justify-content:space-between;align-items:center;padding:10px 16px;border-bottom:1px solid var(--hair);color:var(--t3);font-size:12px}
.code pre{margin:0;padding:18px 20px;color:var(--t2);white-space:pre}.k{color:var(--t1)}.s1{color:var(--code-string)}.n{color:var(--t2);text-decoration:underline;text-decoration-color:var(--hair2)}.c{color:var(--code-comment)}
footer{padding:40px 0 56px;color:var(--t3);font-size:13px}footer .w{display:flex;justify-content:space-between}
@media (max-width:900px){.links{display:none}.bento,.prod{grid-template-columns:1fr;grid-auto-rows:auto}.cell{min-height:240px}.c2,.c3,.c4{grid-column:auto}.tall{grid-row:auto;min-height:340px}.prod{grid-template-columns:1fr 1fr}.open{grid-template-columns:1fr}.band .w{grid-template-columns:1fr 1fr}.m:nth-child(3){border-left:0;padding-left:0}.w{padding:0 20px}section.s{padding:88px 0}.facts{display:none}}
/* ---------- Type system (owner, 2026-10-27): IBM Plex. Plex Mono for display headlines, labels, nav, numbers, data and
   code; Plex Sans for titles, UI and body. Families, files and tracking come from the token block above. */
h1,h2{font-family:var(--display)!important;font-weight:400!important;letter-spacing:var(--track-display-1)!important;text-wrap:balance}
h1{font-size:clamp(32px,3.4vw,52px)!important;line-height:1.04!important;max-width:22ch!important}
h2{font-size:clamp(24px,2.3vw,36px)!important;line-height:1.1!important;max-width:28ch!important}
.close h2{font-size:clamp(30px,3.1vw,48px)!important;max-width:22ch!important}
h3{font-family:var(--sans)!important;font-weight:600!important;letter-spacing:-.012em!important}
.lede,.sub{letter-spacing:-.008em}
.nav .links a,.sx-gl a{font:400 12px var(--mono)!important;letter-spacing:.06em!important;text-transform:uppercase}
.btn{font-family:var(--sans)!important;font-weight:600!important;letter-spacing:-.005em}
/* ---------- phone widths (QA 2026-10-27): no horizontal scroll at 390 px */
@media (max-width:700px){
  .nav .w{gap:14px}.navr .btn[data-variant=ghost]{display:none}.navr .btn{height:34px;padding:0 12px}
  .logo{font-size:13px;letter-spacing:.03em}.w{padding:0 16px}
  img,svg,canvas,iframe,video{max-width:100%}
  .fb .w{flex-wrap:wrap;row-gap:10px}.fb .jump{display:none}
}
/* Top bar at 480 px and below: the account call to action becomes an icon (its text stays the accessible name), so
   the language and theme controls always fit beside it. */
@media (max-width:480px){
  .navr{gap:6px}.navr .btn[data-variant=primary]{width:34px;min-width:34px;padding:0;font-size:0!important;justify-content:center;gap:0}
  .navr .btn[data-variant=primary]::before{content:"";width:16px;height:16px;background:currentColor;-webkit-mask:var(--ico-user) center/16px no-repeat;mask:var(--ico-user) center/16px no-repeat}
}
:root{--ico-user:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23000' stroke-width='1.4'%3E%3Ccircle cx='8' cy='5.5' r='3'/%3E%3Cpath d='M2.5 14.5c.6-3 2.8-4.6 5.5-4.6s4.9 1.6 5.5 4.6'/%3E%3C/svg%3E")}
@media (max-width:700px){
  .seg,#fk,.cta,.tog{flex-wrap:wrap!important;row-gap:8px}.seg{max-width:100%}
  table.tbl,table.gt{display:block;max-width:100%;overflow-x:auto}
  .tb{max-width:100%;overflow:hidden}
  #wheel{max-width:100%}
}
@media (max-width:700px){
  table{display:block;max-width:100%;overflow-x:auto}
  .w>*,.split>*,.hero .w>*{min-width:0;max-width:100%}
  .cta{max-width:100%}.cta .btn{white-space:normal;height:auto;min-height:44px;text-align:center}
  .filters,.fbar,.ctrl,.controls,.next{flex-wrap:wrap;max-width:100%}.next{flex-direction:column;align-items:flex-start;gap:16px}
  #wheel{width:100%!important;height:auto!important;overflow:hidden!important}.top,.sw{grid-template-columns:minmax(0,1fr)!important}.split{grid-template-columns:minmax(0,1fr)!important}
}
@media (max-width:700px){html,body{overflow-x:clip}}
/* ---------- Light, dark and system themes (theme.js). Dark is the brand default; "system" follows the device. ---------- */
/* wireframe scenes and their stills are drawn white on black; in light mode they print as ink on paper */
:root[data-theme=light] :is(canvas,iframe,.gimg,.limg,img[src*="thumbs/"]){filter:var(--scene-filter-light)}
@media (prefers-color-scheme:light){:root:not([data-theme]) :is(canvas,iframe,.gimg,.limg,img[src*="thumbs/"]){filter:var(--scene-filter-light)}}
html,body{background:var(--bg);color:var(--t1)}
.thm{display:inline-flex;gap:2px;margin-right:6px;padding:2px;border:1px solid var(--hair2);border-radius:5px}
.thm button{width:26px;height:26px;display:inline-grid;place-items:center;padding:0;border:0;border-radius:4px;background:transparent;color:var(--t3);cursor:pointer}
.thm button svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:1.3;stroke-linecap:round}
.thm button:hover{color:var(--t1)}.thm button[aria-pressed=true]{color:var(--t1);background:var(--hover)}
.thm button:focus-visible{outline:2px solid var(--accent);outline-offset:1px}
@media (max-width:700px){.thm{margin-right:0}.thm button{width:24px;height:24px}}
/* ---------- Red and numbers (owner, 2026-10-27; docs/30 §3–4). Red marks live, active, signal, protocol, attention and
   the one primary action, never decoration. Numbers set tabular with a slashed zero wherever they are not mono. */
body{font-variant-numeric:var(--numeric)}
main :where(p,dd,td,figcaption,.prose li) a:not(.btn){text-decoration:underline;text-decoration-color:var(--accent-text);text-decoration-thickness:1px;text-underline-offset:.2em}
main :where(p,dd,td,figcaption,.prose li) a:not(.btn):hover{color:var(--accent-text)}
:where(a,button,input,select,textarea,summary,[tabindex]):focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.eyebrow.dot::before{content:"";display:inline-block;width:6px;height:6px;margin-right:8px;border-radius:50%;background:var(--accent);vertical-align:.1em}
/* One red focal point per view: the account call to action in the top bar stays ink; the page's own primary action
   carries the red. */
:where(.navr,.sx-g) .btn[data-variant=primary]{background:var(--t1);color:var(--bg)}
:where(.navr,.sx-g) .btn[data-variant=primary]:hover{background:var(--t2)}
.btn[data-variant=primary]:active{background:var(--accent-pressed);color:var(--on-accent-pressed)}
/* Own-header pages (owner 2026-10-28): the bar never wraps. Wordmark and labels stay on one line; the secondary
   ghost button hides below 1280 px; spacing tightens below 1440 px; the section links hide below 1200 px, as they do
   on phones, so the bar keeps one line at every width. */
@media (min-width:701px){.nav .w{flex-wrap:nowrap}.nav .logo,.nav .links a,.navr .btn{white-space:nowrap}.nav .logo,.navr{flex:none}}
@media (max-width:1439px){.nav .w{gap:24px}.nav .links{gap:18px}}
@media (max-width:1279px){.navr .btn[data-variant=ghost]{display:none}}
@media (max-width:1199px){.nav .links{display:none}}