:root{--ink:#10100e;--paper:#f3f0e8;--cream:#e8e1d2;--acid:#d7ff43;--orange:#ff6b35;--blue:#2667ff;--muted:#6b685f;--line:rgba(16,16,14,.16);--sans:"Noto Sans SC",sans-serif;--mono:"IBM Plex Mono",monospace}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);line-height:1.65}.noise{position:fixed;inset:0;pointer-events:none;z-index:20;opacity:.035;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}.masthead,.top{height:74px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 clamp(20px,4vw,64px);position:relative;z-index:5}.brand{font-family:var(--mono);font-size:13px;font-weight:600;letter-spacing:.06em;text-decoration:none;color:inherit}.brand-mark{display:inline-grid;place-items:center;background:var(--ink);color:var(--acid);width:31px;height:31px;margin-right:10px}.nav-mini{display:flex;align-items:center;gap:28px}.nav-mini a{font-family:var(--mono);font-size:12px;color:inherit;text-decoration:none}.nav-start{background:var(--ink);color:white!important;padding:10px 14px}.hero{min-height:690px;display:grid;grid-template-columns:1.02fr .98fr;border-bottom:1px solid var(--line)}.hero-copy{padding:clamp(50px,7vw,105px) clamp(24px,6vw,95px)}.eyebrow{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 38px}.eyebrow span,.section-no{font:500 11px var(--mono);letter-spacing:.1em}.eyebrow span{border:1px solid var(--ink);padding:6px 9px}.hero h1{font-size:clamp(48px,6.5vw,96px);line-height:.98;letter-spacing:-.07em;margin:0;max-width:850px;font-weight:900}.hero h1 em{font-style:normal;color:var(--blue)}.lede{font-size:clamp(17px,1.5vw,21px);max-width:650px;color:#45433d;margin:32px 0}.cta-row{display:flex;align-items:center;gap:25px;flex-wrap:wrap}.cta{display:flex;justify-content:space-between;min-width:230px;background:var(--ink);color:#fff;padding:16px 18px;text-decoration:none;font-weight:700}.cta:hover{background:var(--blue)}.text-btn{border:0;background:transparent;text-decoration:underline;text-underline-offset:5px;cursor:pointer}.hero-proof{display:flex;gap:38px;margin-top:62px}.hero-proof div{display:flex;flex-direction:column}.hero-proof strong{font:600 28px var(--mono)}.hero-proof span{font-size:12px;color:var(--muted)}.hero-visual{background:var(--ink);color:white;padding:42px;display:flex;flex-direction:column;justify-content:center;overflow:hidden}.case-label{font:500 11px var(--mono);letter-spacing:.1em}.pulse{display:inline-block;width:8px;height:8px;background:var(--acid);border-radius:50%;margin-right:8px;box-shadow:0 0 0 6px rgba(215,255,67,.12)}.agent-orbit{max-width:600px;margin:auto;width:100%}.agent-orbit svg{width:100%;overflow:visible}.orbit-path{fill:none;stroke:#45453f;stroke-width:1;stroke-dasharray:4 8}.orbit-node circle{fill:#191917;stroke:#66665e;stroke-width:1.5;transition:.35s}.orbit-node text,.core text{text-anchor:middle;fill:#aaa99e;font:500 11px var(--mono);transition:.35s}.orbit-node text+text{font-size:13px;fill:white}.orbit-node.active circle{stroke:var(--acid);fill:#26300d;filter:drop-shadow(0 0 12px rgba(215,255,67,.25))}.orbit-node.active text{fill:var(--acid)}.core circle{fill:var(--orange)}.core text{fill:#111;font-weight:700}.core .status{font-size:10px}.terminal-strip{border-top:1px solid #45453f;padding:18px 0 0;display:flex;justify-content:space-between;font:12px var(--mono)}.terminal-strip .bad{color:#ff8068}.terminal-strip .good{color:var(--acid)}.manifesto{display:grid;grid-template-columns:1fr 3fr;padding:110px clamp(24px,7vw,110px);border-bottom:1px solid 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1fr;margin-top:24px;gap:24px}.phase-story{background:var(--blue);color:white;padding:28px;min-height:320px}.phase-story>span{font:11px var(--mono);color:#b8c9ff}.phase-story h3{font-size:29px;line-height:1.15;margin:35px 0 12px}.phase-story p{font-size:14px;color:#dce5ff}.thread-line{margin-top:38px;font:10px var(--mono);display:flex;align-items:center;gap:7px}.thread-line i{height:1px;background:#9ab2ff;flex:1}.course-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.course-card{background:var(--paper);border:1px solid transparent;padding:24px;text-decoration:none;color:inherit;display:flex;flex-direction:column;min-height:210px;transition:.2s}.course-card:hover{transform:translateY(-4px);border-color:var(--ink);box-shadow:7px 7px 0 var(--ink)}.card-top,.card-foot{display:flex;justify-content:space-between;align-items:center}.card-top>span{font:600 15px var(--mono);background:var(--acid);padding:5px}.card-top small{font:11px var(--mono);color:var(--muted)}.course-card h3{font-size:20px;margin:24px 0 6px}.course-card p{font-size:13px;color:var(--muted);margin:0}.card-foot{margin-top:auto}.card-foot>span{height:3px;background:#ccc;width:60%;display:block}.card-foot i{height:100%;background:var(--blue);display:block}.card-foot b{font-size:12px}.lab-section{background:var(--orange);display:grid;grid-template-columns:.8fr 1.2fr;padding:100px clamp(24px,7vw,110px);gap:70px}.section-no.light{color:#4f1a09}.lab-copy>p:not(.section-no){max-width:530px}.scenario-pills{display:flex;gap:8px;flex-wrap:wrap;margin-top:30px}.scenario-pills button{border:1px solid var(--ink);background:transparent;padding:9px 12px;cursor:pointer}.scenario-pills button.active{background:var(--ink);color:white}.decision-console{background:#121210;color:#efeee8;align-self:center;box-shadow:14px 14px 0 rgba(0,0,0,.18)}.console-top{display:flex;justify-content:space-between;padding:12px 18px;border-bottom:1px solid #444;font:11px var(--mono);color:#999}.decision-body{padding:35px}.decision-body .prompt{font:16px/1.7 var(--mono);min-height:82px}.decision-options{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.decision-options button{background:#252522;color:white;border:1px solid #555;padding:14px 6px;cursor:pointer}.decision-options button:hover{border-color:var(--acid)}.decision-options .right{background:var(--acid);color:#111;border-color:var(--acid)}.decision-options .wrong{background:#8e2917}.decision-feedback{margin-top:22px;border-top:1px solid #444;padding-top:18px;color:#aaa;font-size:14px}.decision-feedback strong{display:block;color:var(--acid);margin-bottom:4px}.foot{padding:40px clamp(24px,5vw,72px);display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:12px}.foot p{color:var(--muted)}.foot a{color:inherit;font-weight:700}
/* course and reader */
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@media(max-width:900px){.nav-mini a:not(.nav-start){display:none}.hero{grid-template-columns:1fr}.hero-visual{min-height:580px}.manifesto,.manifesto>div,.lab-section{grid-template-columns:1fr}.manifesto{gap:30px}.course-stage{grid-template-columns:1fr}.phase-tabs{overflow:auto}.phase-tabs button{min-width:135px}.page{grid-template-columns:1fr}.side{position:static;height:auto;border-right:0;border-bottom:1px solid var(--line);display:flex;overflow:auto;padding:14px}.side h3{display:none}.side a{white-space:nowrap}.article{padding-top:40px}}@media(max-width:620px){.masthead{padding:0 16px}.nav-start{display:block!important}.hero-proof{gap:18px}.hero-visual{padding:24px;min-height:480px}.manifesto,.journey,.lab-section{padding:70px 20px}.manifesto>div{display:block}.course-grid{grid-template-columns:1fr}.journey-head{display:block}.phase-tabs{grid-template-columns:repeat(4,135px)}.decision-options{grid-template-columns:1fr}.foot{align-items:flex-start;flex-direction:column}.course-stage{display:block}.phase-story{margin-bottom:14px}}