#overview #overview-title{font:600 clamp(40px,4.8vw,68px)/1.05 var(--display);letter-spacing:-.025em;color:var(--ink);margin:0 0 34px}
.overview-section{padding-bottom:100px}
.overview-lead{font:400 clamp(22px,2.2vw,31px)/1.5 var(--display);letter-spacing:-.025em;color:var(--ink);margin:0 0 24px;max-width:1100px}
.overview-description{font:400 clamp(16px,1.3vw,19px)/1.85 var(--sans);color:var(--muted);max-width:1100px;margin:0}
.overview-figure{margin:50px 0 64px;padding:28px 0 20px;border-block:1px solid var(--line)}
.overview-figure-scroll{overflow-x:auto;overscroll-behavior-x:contain}
.overview-figure img{display:block;width:100%;height:auto;min-width:760px}
.overview-figure figcaption{margin-top:22px;color:var(--quiet);font:12px/1.7 var(--sans)}
.overview-contributors>h3{font:500 clamp(30px,3vw,42px)/1.2 var(--display);color:var(--ink);margin:0 0 32px}
.contribution-group{margin-top:30px}
.contribution-group>h4{font:500 17px/1.5 var(--sans);color:var(--ink);margin:0 0 13px}
.contribution-group p{font:400 15px/1.95 var(--sans);color:var(--muted);margin:0}
.contribution-group .core-contributors{font-size:18px;color:var(--ink-600)}
.contributor-name{display:inline-block;white-space:nowrap}
.contributor-name sup{font-size:.65em;margin-left:2px}
.contribution-areas{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 48px}
.contribution-row{border-top:1px solid var(--line);padding-top:18px}
.contribution-row h4{font:500 14px/1.6 var(--sans);color:var(--ink-600);margin:0 0 8px}
.contribution-row:last-child{grid-column:1/-1}
.contribution-notes{display:flex;flex-wrap:wrap;gap:8px 28px;font:12px/1.7 var(--sans);color:var(--quiet);margin:25px 0 0}
@media(max-width:600px){.overview-section{padding-bottom:55px}.overview-lead{font-size:23px}.overview-description{font-size:16px}.overview-figure{margin:32px 0 40px;padding-top:18px}.contribution-areas{grid-template-columns:1fr;gap:20px}.contribution-group .core-contributors{font-size:16px}.chapter-nav{gap:12px;font-size:10px}.chapter-nav a{gap:5px}.chapter-nav a span{font-size:9px}}
/* An editorial architecture diagram, with a causal execution loop. */
.overview-figure-scroll:has(.arch-map){overflow:visible}
.arch-map{color:#e9edf4;background:#080b10;border:1px solid #ffffff12;border-radius:10px;overflow:hidden}
.arch-map-top{padding:28px 30px 10px;display:flex;justify-content:space-between;align-items:start;gap:24px}
.arch-overline-html{font:10px var(--sans);letter-spacing:1.8px;color:#7e8b9c}
.arch-map-top h3{font:400 clamp(23px,2.5vw,34px)/1.2 var(--display);margin:12px 0 0;color:#e4eaf3}
.arch-map-actions{display:flex;gap:18px;padding-top:2px;flex-shrink:0}.arch-map-actions button{border:0;background:none;color:#8e9bad;cursor:pointer;font:11px var(--sans);padding:5px 0;white-space:nowrap}.arch-map-actions button:hover{color:#fff}.arch-map-actions button:focus-visible{outline:1px solid #adc5e7;outline-offset:6px}
.arch-map .arch-diagram{display:block;width:100%;height:auto;min-width:0}
.arch-section-label{font:12px var(--sans);letter-spacing:1.7px;fill:#748399}
.arch-divider{stroke:#ffffff13;fill:none}
.arch-title{font:500 21px var(--sans);fill:#dde6f3}
.arch-main-title{font:500 28px var(--sans);fill:#f1f5fb}
.arch-resource-title{font:500 25px var(--display);fill:#e6f3ec}
.arch-label{font:16px var(--sans);fill:#91a0b4}
.arch-wire-label{font:13px var(--sans);fill:#7e8ca0}
.arch-live-label{font:13px var(--mono);fill:#9dc1ed}
.arch-symbol{fill:none;stroke:#a8bdd8;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}
.arch-main{fill:#142236;stroke:#6484ac;stroke-width:1.1}
.arch-runtime{fill:#11161f;stroke:#374351;stroke-width:.8}
.arch-human{fill:#191815;stroke:#756854;stroke-width:1}
.arch-human~.arch-title{fill:#ded0bb}
.arch-worker-card{fill:#101925;stroke:#344b68;stroke-width:.85}
.arch-tools{fill:#0e141e;stroke:#354155;stroke-width:.8}
.arch-apps{fill:#151618;stroke:#5c5c5b;stroke-width:.9}
.arch-resource{fill:#11221e;stroke:#537c6b;stroke-width:1.1}
.arch-candidate{fill:#101a17;stroke:#4e6a5e;stroke-width:.9;stroke-dasharray:4 4}
.arch-route{opacity:.18;stroke-width:1;transition:opacity .3s,stroke-width .3s}
.arch-route-active,.arch-route-selected{opacity:.85;stroke-width:1.8}
.arch-route-muted{opacity:.08}
.arch-status{fill:#acd0ff}
.arch-module{cursor:pointer;outline:none;transition:opacity .25s}
.arch-module rect{transition:stroke .25s,fill .25s}
.arch-muted{opacity:.52}
.arch-selected>rect,.arch-selected .arch-worker-card,.arch-module:focus-visible>rect{stroke:#e3edf9;stroke-width:1.5}
.arch-active>rect,.arch-active .arch-worker-card{stroke-width:1.4}
.arch-worker-event{font:12px var(--mono);fill:#aac7e8}
.arch-worker-track{stroke:#476385;stroke-width:1;opacity:.4}
.arch-revision-line{stroke:#355248;stroke-width:1.5;fill:none}
.arch-revision{fill:#29463a;stroke:#11221e;stroke-width:3;transition:fill .3s,r .3s}
.arch-revision-current{fill:#b7dfcb;r:7}
.arch-explanation{position:relative;border-top:1px solid #ffffff12;padding:22px 30px;display:flex;justify-content:space-between;gap:24px;min-height:130px;box-sizing:border-box}
.arch-explanation strong{font:400 25px/1.25 var(--display);color:#dce7f4}.arch-explanation p{font:13px/1.8 var(--sans);color:#8f9daf;margin:8px 0 0;max-width:760px;min-height:46px}
.arch-interaction-hint{font:10px var(--sans);color:#6e7f96;white-space:nowrap;padding-top:5px}
.arch-story-progress{position:absolute;inset:0 0 auto;height:1px;background:#ffffff05}.arch-story-progress span{display:block;width:100%;height:100%;background:#92b8df;transform-origin:left;opacity:.65}
@media(max-width:700px){.arch-map-top{padding:22px 20px 8px;flex-direction:column;gap:14px}.arch-map-top h3{font-size:27px;max-width:340px}.arch-map-actions{gap:22px}.arch-map .arch-diagram{min-width:0}.arch-explanation{padding:20px;min-height:168px}.arch-explanation strong{font-size:23px}.arch-explanation p{font-size:12px}.arch-interaction-hint{display:none}}
.arch-narrow .arch-title{font-size:26px}.arch-narrow .arch-main-title{font-size:32px}.arch-narrow .arch-resource-title{font-size:30px}.arch-narrow .arch-label{font-size:20px}.arch-narrow .arch-worker-event{font-size:18px}.arch-narrow .arch-wire-label{font-size:17px}
/* Machined surfaces: fixed geometry keeps every wire attached to its port. */
.arch-map{background:radial-gradient(ellipse at 24% 20%,#16213166,transparent 64%),#090c11}
.arch-main,.arch-worker-card{fill:url(#arch-metal-blue)}
.arch-runtime,.arch-tools,.arch-apps{fill:url(#arch-metal-neutral)}
.arch-human{fill:url(#arch-metal-warm)}
.arch-resource,.arch-candidate{fill:url(#arch-metal-green)}
.arch-solid{pointer-events:none}
.arch-solid-shadow{fill:#000;opacity:.7;filter:url(#arch-contact-shadow);stroke:none!important}
.arch-solid-side{fill:url(#arch-side);stroke:#4b617533;stroke-width:.7}
.arch-solid-bottom{fill:url(#arch-bottom);stroke:#617a9333;stroke-width:.65}
.arch-solid-front{stroke:#738aa388;stroke-width:.9}
.arch-main.arch-solid-front{stroke:#94b8dcaa}.arch-resource.arch-solid-front{stroke:#95c2ac88}
.arch-solid-rim{fill:none;stroke:#dcecff;stroke-opacity:.23;stroke-width:1;pointer-events:none}
.arch-module.arch-active .arch-solid-rim,.arch-module.arch-selected .arch-solid-rim{stroke-opacity:.65}
.arch-module.arch-active .arch-solid-side{stroke:#a6c8eb66}
.arch-candidate{stroke-dasharray:4 3}
.arch-map .arch-module .arch-solid-shadow{stroke:none}

/* Balanced collaboration and shared-workspace composition. */
.arch-zone{fill:#080c1280;stroke:#ffffff0c;stroke-width:1}
.arch-map-top{padding:26px 30px;align-items:center;border-bottom:1px solid #ffffff0c}
.arch-map-top h3{margin:0;font-size:27px}
.arch-map{background:#090d13}
.arch-solid-shadow{opacity:.35}
.arch-solid-rim{stroke-opacity:.12}
.arch-main-title{font-size:23px}
.arch-resource-title{font:500 21px var(--sans)}
.arch-human.arch-solid-front{fill:#191d27;stroke:#929aab99}
.arch-worker-card.arch-solid-front{fill:#1b1728;stroke:#77638c88}
.arch-tools.arch-solid-front{fill:#10221f}
@media(max-width:700px){.arch-map-top{flex-direction:row;padding:20px}.arch-map-top h3{font-size:23px}}

/* Quiet inset compartments reveal the interfaces within each module. */
.arch-inset{fill:#080e17;stroke:#9aafc420;stroke-width:1;pointer-events:none}
.arch-inset-label{font-size:13px}
.arch-narrow .arch-inset-label{font-size:17px}
.arch-apps~text{pointer-events:none}