@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=DM+Sans:wght@400;500;600;700;800&display=swap');
:root{color-scheme:dark;--bg:#07121d;--panel:#101f2d;--panel-deep:#0b1926;--border:#2b4350;--text:#f1f4ef;--muted:#a6bdc4;--orange:#ff985e;--mint:#a1e9ca;font-family:'DM Sans',ui-sans-serif,system-ui,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text)}button,code,pre{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible{outline:2px solid var(--mint);outline-offset:4px}::selection{background:var(--mint);color:var(--bg)}
.shell{max-width:1450px;padding-inline:clamp(24px,5vw,80px);margin-inline:auto}.section-pad{padding-block:110px}.section-index,.eyebrow,.panel-top,.node-index,.branch-label,.branch-node>span,.diagram-status,.fact-strip span,.scope-header,.scope-footer,.scope-track,.hero-floor,.scenario-card small,.panel-caption,.pane-note,.reader-top,.receipt-status,.receipt-meta,.read-status,.read-lease,.resource-links,.site-footer,.code-label{font-family:'DM Mono',ui-monospace,monospace}
.topbar{height:84px;display:flex;align-items:center;justify-content:space-between;gap:22px;border-bottom:1px solid var(--border)}.brand{display:flex;gap:15px;align-items:center;flex:none}.brand-glyph{font-size:37px;font-weight:800;letter-spacing:-.13em;line-height:1;color:var(--mint)}.brand-glyph span{color:var(--orange);font-size:22px;vertical-align:top;letter-spacing:0;margin-left:3px}.brand-divider{height:27px;border-left:1px solid #57707b}.brand-title{font:10px/1.4 'DM Mono',ui-monospace,monospace;letter-spacing:.1em}.topbar nav{display:flex;gap:32px;color:#b8cad0;font-size:13px}.topbar nav a:hover,.back-link:hover,.resource-links a:hover{color:var(--orange)}.back-link{font:11px 'DM Mono',ui-monospace,monospace;color:var(--mint);padding:10px 14px;border:1px solid var(--border);white-space:nowrap}
.hero{min-height:655px;display:grid;grid-template-columns:1.04fr .96fr;align-items:center;gap:clamp(30px,5vw,90px);position:relative;padding-block:75px 110px}.hero-copy{position:relative;z-index:1}.eyebrow{color:var(--mint);letter-spacing:.11em;font-size:10px;display:flex;align-items:center;gap:11px}.live-pulse{width:7px;height:7px;border-radius:50%;background:var(--mint);box-shadow:0 0 16px var(--mint);animation:pulse 2s infinite}.hero h1{font-size:clamp(64px,7vw,112px);line-height:1.02;letter-spacing:-.075em;margin:33px 0 25px;font-weight:700}.hero h1 em{font-style:normal;color:var(--orange)}.hero-lede{max-width:600px;color:var(--muted);font-size:17px;line-height:1.8}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:35px}.button{border-radius:2px;padding:14px 19px;font:11px 'DM Mono',ui-monospace,monospace;display:inline-flex;justify-content:center;align-items:center;gap:9px;transition:background .2s,border-color .2s,transform .2s}.button:hover:not(:disabled){transform:translateY(-2px)}.button.primary{background:var(--orange);border:1px solid var(--orange);color:#121c24;font-weight:500}.button.primary:hover:not(:disabled){background:#ffb485}.button.outline{border:1px solid #57707b;color:var(--text)}.button.outline:hover{border-color:var(--mint)}.button:disabled,.reader-button:disabled{opacity:.53;cursor:not-allowed}
.hero-scope{height:455px;border:1px solid #345267;position:relative;overflow:hidden;padding:25px;background:radial-gradient(circle at 48% 51%,#1a4852 0,#103341 22%,#0b2130 50%,#091927 80%);box-shadow:0 12px 60px #030a0eaa}.hero-scope:before,.hero-scope:after{content:'';position:absolute;inset:12% 22%;border:1px solid #97eacc45;border-radius:50%}.hero-scope:after{inset:22% 31%;border-color:#ff985e66;box-shadow:0 0 80px #ff985e33}.scope-header,.scope-footer{display:flex;justify-content:space-between;gap:15px;font-size:9px;letter-spacing:.13em;color:#c0d7db;position:relative;z-index:1}.scope-footer{position:absolute;bottom:26px;left:25px;right:25px}.scope-track{position:absolute;top:49%;left:11%;right:11%;display:flex;justify-content:space-between;align-items:center;color:#d0f3e1;font-size:10px;z-index:2}.scope-track i{width:8px;height:8px;background:var(--mint);border-radius:50%;box-shadow:0 0 22px var(--mint);animation:drift 2.6s ease-in-out infinite alternate}.scope-track i:nth-of-type(2){animation-delay:.45s}.scope-track i:nth-of-type(3){animation-delay:.9s}.scope-track i:nth-of-type(4){animation-delay:1.35s}.scope-core{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:150px;height:150px;display:grid;place-items:center;border:1px solid var(--orange);border-radius:50%;background:#132933;z-index:3;font-size:58px;letter-spacing:-.1em;font-weight:800;box-shadow:0 0 90px #ff985e33}.scope-core span{font-size:30px;color:var(--orange);vertical-align:top;margin-left:-28px;margin-top:-32px}.hero-floor{position:absolute;bottom:30px;left:clamp(24px,5vw,80px);right:clamp(24px,5vw,80px);display:flex;justify-content:space-between;font-size:9px;color:#889eaa;letter-spacing:.08em}
.fact-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-block:1px solid var(--border);background:#0c1b29}.fact-strip>div{padding:28px 0;border-right:1px solid var(--border);display:flex;flex-direction:column;gap:6px}.fact-strip>div:not(:first-child){padding-left:24px}.fact-strip>div:last-child{border:0}.fact-strip strong{font-size:27px;letter-spacing:-.04em;color:var(--mint)}.fact-strip span{color:#a2b4bf;font-size:9px;letter-spacing:.06em}.section-heading{max-width:790px;margin-bottom:43px}.section-index{font-size:10px;letter-spacing:.14em;color:var(--orange)}.section-heading h2,.sub-heading h2{font-size:clamp(40px,4.6vw,70px);line-height:1.1;letter-spacing:-.06em;margin:22px 0}.section-heading p,.sub-heading p{font-size:16px;line-height:1.75;color:var(--muted);margin:0}
.diagram{padding:30px;border:1px solid #385467;background:linear-gradient(145deg,#112735,#0c1d2b);box-shadow:inset 0 1px #4c69704d}.diagram-main{display:grid;grid-template-columns:minmax(0,1fr) 28px minmax(0,1fr) 28px minmax(0,1fr);align-items:stretch;gap:13px}.diagram-node{padding:24px;border:1px solid #3a5863;background:#102431;min-height:238px;transition:border-color .25s,box-shadow .25s}.diagram-node.active,.branch-node.active{border-color:var(--mint);box-shadow:0 0 28px #a1e9ca24}.diagram-node.k2-node{background:#19302f}.node-index,.branch-node>span{color:var(--mint);letter-spacing:.07em;font-size:10px}.diagram-node h3{font-size:25px;letter-spacing:-.04em;margin:19px 0 9px}.diagram-node p{font-size:13px;line-height:1.6;color:var(--muted);margin:0 0 18px}.diagram-node code{font:10px/1.5 'DM Mono',ui-monospace,monospace;color:#fac097;overflow-wrap:anywhere}.diagram-arrow{font:28px 'DM Mono',monospace;color:var(--orange);align-self:center;text-align:center}.diagram-branches{max-width:760px;margin:38px 0 0 auto;padding-left:25px;border-left:1px solid #56727c}.branch-label{color:var(--orange);font-size:10px;letter-spacing:.07em}.branch-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px;margin-top:14px}.branch-node{display:flex;flex-direction:column;gap:12px;border:1px dashed #4b6470;padding:20px;transition:border-color .25s;background:#0b1e2b}.branch-node strong{font-size:16px}.branch-node small{font-size:12px;line-height:1.5;color:var(--muted)}.diagram-status{font-size:10px;line-height:1.7;letter-spacing:.015em;color:#c3e0db;margin:25px 0 0;padding-top:18px;border-top:1px solid var(--border)}.architecture-notes{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:25px}.architecture-notes article{padding-left:17px;border-left:2px solid var(--orange)}.architecture-notes span{font:10px 'DM Mono',ui-monospace,monospace;letter-spacing:.09em;color:var(--orange)}.architecture-notes p{font-size:13px;line-height:1.7;color:var(--muted);margin:10px 0 0}.architecture-notes code{color:var(--text)}
.lab-shell{background:#0b1a27;border-block:1px solid var(--border)}.workbench{display:grid;grid-template-columns:1.03fr .97fr;gap:16px}.scenario-pane,.produce-pane,.reader-card{border:1px solid var(--border);background:#122432;padding:27px;min-width:0}.panel-top,.reader-top,.panel-caption{display:flex;justify-content:space-between;gap:14px;align-items:center;font-size:10px;letter-spacing:.09em;color:#a8bec4}.panel-top span:first-child,.reader-top span:first-child{color:var(--orange)}.workbench h3{font-size:26px;letter-spacing:-.045em;margin:25px 0 18px}.loading-copy{color:var(--muted)}.scenario-list{display:grid;gap:9px}.scenario-card{display:flex;flex-direction:column;gap:6px;text-align:left;padding:15px;border:1px solid #435966;background:#132939;color:var(--text);transition:border-color .2s,background .2s}.scenario-card:hover,.scenario-card.selected{border-color:var(--mint);background:#1b3540}.scenario-card strong{font-size:15px}.scenario-card span{color:#afc4c9;font-size:12px;line-height:1.5}.scenario-card small{color:var(--mint);font-size:9px;letter-spacing:.04em}.payload-panel{border:1px solid #384f5a;background:#071622;margin-top:21px}.panel-caption{padding:13px 15px;border-bottom:1px solid #384f5a}.payload-panel pre,.receipt-detail pre{margin:0;max-height:315px;overflow:auto;padding:16px;font:11px/1.65 'DM Mono',ui-monospace,monospace;white-space:pre-wrap;overflow-wrap:anywhere;color:#c3e3d6}.pane-note{font-size:11px;line-height:1.65;color:#aac0c7;margin:18px 0 0}.produce-pane>p{font-size:14px;line-height:1.75;color:var(--muted);max-width:470px}.produce-button{width:100%;margin:23px 0}.batch-result{min-height:205px;border:1px solid #45606d;background:#081a25;padding:22px;display:flex;flex-direction:column;gap:13px;overflow-wrap:anywhere}.idle-prompt{color:var(--muted);font-size:13px;line-height:1.7}.receipt-status{font-size:10px;color:var(--mint);letter-spacing:.08em}.receipt-id{font:16px 'DM Mono',ui-monospace,monospace;color:#f6c3a0;overflow-wrap:anywhere}.receipt-meta{font-size:10px;color:#acced0;line-height:1.6}.receipt-note{font-size:12px;line-height:1.6;color:var(--muted);margin:0}.receipt-detail{margin-top:18px;border:1px solid var(--border)}.receipt-detail summary{cursor:pointer;padding:13px 15px;color:#cde5d8;font:10px 'DM Mono',ui-monospace,monospace}.receipt-detail summary:hover{color:var(--orange)}.receipt-detail pre{border-top:1px solid var(--border)}
.sub-heading{margin:85px 0 30px;max-width:780px}.reader-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.reader-card{background:#10212c}.reader-card h3{font-size:24px;margin:24px 0 8px}.reader-card>p{font-size:13px;color:var(--muted);line-height:1.65;min-height:62px}.reader-pill{font:9px 'DM Mono',ui-monospace,monospace;color:var(--mint);border:1px solid #527b76;padding:7px 9px}.reader-button{font:11px 'DM Mono',ui-monospace,monospace;background:none;border:1px solid var(--mint);color:var(--mint);padding:13px 16px;transition:background .2s}.reader-button:not(:disabled):hover{background:#193b40}.reader-output{min-height:92px;background:#081925;border:1px solid #344e58;color:#bdd1d2;padding:16px;margin-top:20px;font-size:12px;line-height:1.65}.reader-disclosure{font-size:12px;line-height:1.75;color:var(--muted);border-left:2px solid var(--orange);padding:8px 18px;margin:24px 0 0}.read-status{display:block;color:var(--mint);font:10px 'DM Mono',ui-monospace,monospace}.read-lease{display:block;margin:9px 0;font:10px 'DM Mono',ui-monospace,monospace;color:var(--orange);overflow-wrap:anywhere}.read-event{display:flex;flex-wrap:wrap;gap:6px 13px;padding:9px 0;border-top:1px solid #344e58}.read-event code{color:var(--mint);font:10px 'DM Mono',ui-monospace,monospace}.read-event small{color:#9bafb9}.fanout-proof{margin-top:18px;border:1px solid var(--mint);padding:17px;color:var(--mint);font-size:13px;line-height:1.65}
.semantics-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.semantics-grid article{padding:27px;border:1px solid var(--border);background:#112330}.semantics-grid span{font:10px 'DM Mono',ui-monospace,monospace;color:var(--mint)}.semantics-grid h3{font-size:25px;letter-spacing:-.04em;margin:21px 0 7px}.semantics-grid p{font-size:14px;line-height:1.7;color:var(--muted);margin:0}.underhood{background:#0b1b28;border-top:1px solid var(--border)}.code-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.code-grid article{border:1px solid var(--border);background:#071622;min-width:0}.code-label{font-size:10px;color:var(--orange);letter-spacing:.08em;padding:17px 21px;border-bottom:1px solid var(--border)}.code-grid pre{padding:19px 21px;margin:0;overflow-x:auto;color:#c6eadb;font:11px/1.7 'DM Mono',ui-monospace,monospace}.code-grid p{padding:0 21px 20px;margin:0;color:var(--muted);font-size:12px;line-height:1.6}.resource-links{display:flex;flex-wrap:wrap;gap:16px 27px;margin-top:30px;font-size:11px;color:var(--mint)}.site-footer{min-height:120px;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;gap:18px;color:#9db3bc;font-size:10px}.site-footer a{color:var(--mint)}
@keyframes pulse{50%{opacity:.4;transform:scale(1.4)}}@keyframes drift{to{transform:translateX(12px);opacity:.4}}@media(max-width:1050px){.hero{grid-template-columns:1fr;gap:40px}.hero-scope{max-width:640px;width:100%;height:370px}.hero-floor{position:static;grid-column:1;gap:15px}.diagram-main{grid-template-columns:1fr}.diagram-arrow{transform:rotate(90deg)}.diagram-node{min-height:auto}.diagram-branches{margin-left:0}.workbench{grid-template-columns:1fr}}@media(max-width:720px){.topbar{height:73px}.topbar nav{display:none}.brand-glyph{font-size:31px}.hero{padding-top:70px;min-height:auto}.hero h1{font-size:clamp(58px,12vw,90px)}.hero-scope{height:310px}.scope-core{width:115px;height:115px;font-size:44px}.scope-core span{font-size:21px;margin-left:-21px;margin-top:-25px}.hero-floor{font-size:8px}.fact-strip{grid-template-columns:repeat(2,1fr)}.fact-strip>div{border-bottom:1px solid var(--border);padding:17px 10px!important}.fact-strip>div:nth-child(2){border-right:0}.fact-strip>div:nth-child(n+3){border-bottom:0}.section-pad{padding-block:75px}.diagram{padding:20px}.branch-grid,.architecture-notes,.reader-grid,.semantics-grid,.code-grid{grid-template-columns:1fr}.scenario-pane,.produce-pane,.reader-card{padding:21px}.reader-card>p{min-height:auto}.site-footer{flex-wrap:wrap;padding-block:28px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}