:root{
  --bg:#0f1214;--bg2:#15191b;--panel:#171b1e;--panel2:#1c2124;--panel3:#22282b;
  --text:#f1eee7;--muted:#a8aaa7;--faint:#757a79;--line:#31383a;--line2:#3b4446;
  --accent:#d9793f;--accent2:#f0a46e;--accent-soft:rgba(217,121,63,.14);--good:#86b89c;
  --shadow:0 30px 80px rgba(0,0,0,.28);--radius:18px;--shell:min(1480px,calc(100vw - 64px));
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,Baskerville,Georgia,serif;
  --sans:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
[data-theme="light"]{--bg:#f1eee8;--bg2:#e8e4dc;--panel:#f8f6f1;--panel2:#efebe4;--panel3:#e7e1d8;--text:#171a1b;--muted:#5f6362;--faint:#7c807e;--line:#d5cfc5;--line2:#c5beb3;--accent:#b65729;--accent2:#8e421f;--accent-soft:rgba(182,87,41,.10);--shadow:0 30px 80px rgba(67,52,38,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);line-height:1.65;}a{color:inherit}button,input,select{font:inherit}button{color:inherit}.skip{position:fixed;left:12px;top:-80px;z-index:999;background:var(--text);color:var(--bg);padding:10px 14px;border-radius:8px}.skip:focus{top:12px}.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}.shell{width:var(--shell);margin-inline:auto}.ambient{position:fixed;inset:0;pointer-events:none;z-index:-1;overflow:hidden}.ambient span{position:absolute;border-radius:50%;filter:blur(100px);opacity:.13;background:var(--accent)}.ambient span:nth-child(1){width:420px;height:420px;left:-160px;top:12vh}.ambient span:nth-child(2){width:360px;height:360px;right:-120px;top:45vh;opacity:.08}.ambient span:nth-child(3){width:260px;height:260px;left:50%;bottom:-170px;opacity:.06}.site-header{width:100%;height:88px;display:flex;align-items:center;padding:0 max(32px,calc((100vw - 1480px)/2));border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(18px);position:sticky;top:0;z-index:80}.brand{display:flex;align-items:center;gap:14px;text-decoration:none;margin-right:auto}.brand strong{font-family:var(--sans);font-size:1.9rem;line-height:1;font-style:normal;color:var(--accent);font-weight:700;letter-spacing:-.08em}.brand span{font-weight:700;letter-spacing:0}.brand small{display:block;color:var(--muted);font-size:.66rem;font-weight:500;letter-spacing:.08em}.header-tools{display:flex;gap:8px;margin-left:30px;flex-shrink:0}.icon-button{width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:transparent;cursor:pointer}.icon-button svg{width:22px;height:22px;display:block;margin:auto}.icon-button:hover{background:var(--panel2);border-color:var(--line2)}.menu-button{display:none}.hero{min-height:690px;display:grid;grid-template-columns:1.04fr .96fr;gap:70px;align-items:center;padding:80px 0}.eyebrow{font-size:.72rem;letter-spacing:.18em;font-weight:750;color:var(--muted);text-transform:uppercase}.signal{display:inline-block;width:42px;height:1px;background:var(--accent);vertical-align:middle;margin-right:12px}.hero h1,.section-heading h2,.lesson-title{font-family:var(--serif);font-weight:400;letter-spacing:-.04em}.hero h1{font-size:clamp(3.7rem,6vw,7.3rem);line-height:.92;margin:20px 0 30px}.hero h1 em{color:var(--accent);font-weight:400}.hero-lead{max-width:760px;color:var(--muted);font-size:1.08rem;line-height:1.85}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}.button{border:1px solid var(--line2);background:transparent;border-radius:10px;padding:12px 17px;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;gap:14px;justify-content:center;font-weight:650;font-size:.9rem}.button:hover{background:var(--panel2);transform:translateY(-1px)}.button.primary{background:var(--accent);border-color:var(--accent);color:#161412}.button.small{padding:9px 12px;font-size:.8rem}.philosophy{margin-top:28px;color:var(--muted);font-size:.9rem}.philosophy strong{color:var(--text)}.constellation-panel{position:relative;min-height:500px;border:1px solid var(--line);border-radius:22px;overflow:hidden;background:linear-gradient(145deg,var(--panel),color-mix(in srgb,var(--panel) 72%,#000));box-shadow:var(--shadow)}.panel-top{height:52px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 22px;color:var(--muted);font-size:.68rem;letter-spacing:.16em}.constellation-panel canvas{width:100%;height:360px;display:block}.constellation-copy{border-top:1px solid var(--line);padding:24px}.constellation-copy h2{font-family:var(--serif);font-weight:400;font-size:2rem;margin:5px 0}.constellation-copy p{color:var(--muted);margin:0}.stat-band{border-block:1px solid var(--line);background:var(--bg2)}.stats{display:grid;grid-template-columns:repeat(4,1fr)}.stats div{padding:28px 28px;border-right:1px solid var(--line)}.stats div:first-child{border-left:1px solid var(--line)}.stats strong{display:block;font-family:var(--serif);font-weight:400;font-size:2.25rem;color:var(--accent)}.stats span{color:var(--muted);font-size:.82rem}.section{padding:110px 0}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:50px;margin-bottom:38px}.section-heading h2{font-size:clamp(2.4rem,4vw,4.4rem);line-height:1.02;margin:10px 0 0;max-width:900px}.section-heading>p{max-width:460px;color:var(--muted)}.domain-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.domain-card{min-height:310px;padding:28px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:linear-gradient(145deg,var(--panel),transparent);display:flex;flex-direction:column;cursor:pointer;position:relative;overflow:hidden}.domain-card:before{content:"";position:absolute;width:160px;height:160px;border:1px solid var(--line);border-radius:50%;right:-74px;top:-74px;transition:.35s}.domain-card:hover:before{transform:scale(1.15);border-color:var(--accent)}.domain-card:hover{background:var(--panel2)}.domain-icon{font-family:var(--serif);font-size:2.2rem;color:var(--accent);height:55px}.domain-card h3{font-family:var(--serif);font-size:2rem;line-height:1.05;font-weight:400;margin:16px 0 14px}.domain-card p{color:var(--muted);font-size:.9rem}.domain-meta{margin-top:auto;padding-top:24px;display:flex;justify-content:space-between;border-top:1px solid var(--line);font-size:.73rem;color:var(--muted);letter-spacing:.06em;text-transform:uppercase}.domain-card.wide{grid-column:span 2}.discover{background:var(--bg2);border-block:1px solid var(--line)}.discover-heading{margin-bottom:24px}.text-button{border:0;background:none;color:var(--accent);text-decoration:underline;text-underline-offset:5px;cursor:pointer}.search-stage{position:sticky;top:88px;z-index:30;background:color-mix(in srgb,var(--bg2) 94%,transparent);backdrop-filter:blur(16px);padding:18px 0;border-bottom:1px solid var(--line);margin-bottom:22px}.search-box{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:14px;background:var(--panel);border:1px solid var(--line2);border-radius:14px;padding:0 18px;height:64px}.search-box:focus-within{outline:2px solid color-mix(in srgb,var(--accent) 50%,transparent);outline-offset:2px}.search-box span{font-size:1.7rem;color:var(--accent)}.search-box input{width:100%;border:0;outline:0;background:transparent;color:var(--text);font-size:1.05rem}.search-box input::placeholder{color:var(--faint)}kbd{font-size:.7rem;padding:3px 8px;border:1px solid var(--line);border-radius:6px;color:var(--muted);background:var(--panel2)}.filters{display:flex;gap:12px;flex-wrap:wrap;margin-top:12px}.filters label{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:.78rem}.filters select{background:var(--panel);border:1px solid var(--line);color:var(--text);padding:8px 28px 8px 10px;border-radius:8px}.check-label{border:1px solid var(--line);background:var(--panel);padding:7px 10px;border-radius:8px}.results-meta{display:flex;justify-content:space-between;color:var(--muted);font-size:.78rem;margin-bottom:12px}.lesson-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.lesson-card{min-height:270px;padding:24px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--panel);display:flex;flex-direction:column;position:relative;cursor:pointer}.lesson-card:hover{background:var(--panel2)}.lesson-card.completed:after{content:"✓";position:absolute;right:18px;top:18px;color:var(--good);font-weight:800}.lesson-card .topline{display:flex;gap:8px;align-items:center;font-size:.68rem;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}.lesson-card .kind{color:var(--accent)}.lesson-card h3{font-family:var(--serif);font-size:1.55rem;line-height:1.12;font-weight:400;margin:22px 0 12px}.lesson-card p{font-size:.88rem;color:var(--muted);margin:0}.lesson-card .bottomline{margin-top:auto;padding-top:20px;display:flex;justify-content:space-between;align-items:end;border-top:1px solid var(--line);font-size:.7rem;color:var(--muted)}.save-mini{border:0;background:transparent;color:var(--muted);cursor:pointer;font-size:1.1rem;padding:2px 5px}.save-mini.saved{color:var(--accent)}.load-more{margin:26px auto 0;display:flex}.path-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.path-card{border:1px solid var(--line);background:var(--panel);padding:28px;border-radius:var(--radius);display:grid;grid-template-columns:1fr auto;gap:20px}.path-card h3{font-family:var(--serif);font-size:2rem;font-weight:400;margin:8px 0}.path-card p{color:var(--muted);font-size:.9rem}.path-steps{display:flex;gap:4px;align-items:center;margin-top:18px}.path-steps span{height:5px;flex:1;background:var(--line);border-radius:4px}.path-steps span.done{background:var(--accent)}.path-count{font-family:var(--serif);font-size:2.6rem;color:var(--accent);line-height:1;text-align:right}.path-count small{font-family:var(--sans);display:block;font-size:.65rem;color:var(--muted);text-transform:uppercase;letter-spacing:.12em;margin-top:7px}.atlas{background:var(--bg2);border-block:1px solid var(--line)}.atlas-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.atlas-card{border:1px solid var(--line);background:var(--panel);border-radius:12px;overflow:hidden}.atlas-card summary{cursor:pointer;list-style:none;padding:20px 22px;display:flex;justify-content:space-between;align-items:center}.atlas-card summary::-webkit-details-marker{display:none}.atlas-card summary h3{font-family:var(--serif);font-size:1.45rem;font-weight:400;margin:0}.atlas-card summary span{font-size:.72rem;color:var(--muted)}.atlas-topics{border-top:1px solid var(--line);padding:18px 22px;display:flex;flex-wrap:wrap;gap:8px}.atlas-topics span{font-size:.74rem;border:1px solid var(--line);border-radius:999px;padding:5px 9px;color:var(--muted)}.principle-grid{display:grid;grid-template-columns:repeat(4,1fr);border-left:1px solid var(--line);border-top:1px solid var(--line)}.principle-grid article{padding:28px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-height:260px}.principle-grid article>span{color:var(--accent);font-family:var(--serif);font-size:1.3rem}.principle-grid h3{font-family:var(--serif);font-size:1.6rem;font-weight:400;margin:48px 0 12px}.principle-grid p{color:var(--muted);font-size:.88rem}.site-footer{padding:46px 0 70px;border-top:1px solid var(--line);display:grid;grid-template-columns:1fr auto;gap:20px;color:var(--muted)}.site-footer strong{color:var(--text)}.site-footer p{margin:4px 0}.site-footer small{grid-column:1/-1;border-top:1px solid var(--line);padding-top:18px}.footer-links{display:flex;gap:20px}.footer-links a{text-decoration:none}.footer-links a:hover{color:var(--accent)}#toast{position:fixed;z-index:200;left:50%;bottom:25px;transform:translate(-50%,30px);opacity:0;pointer-events:none;background:var(--text);color:var(--bg);padding:10px 14px;border-radius:10px;font-size:.8rem;transition:.25s}#toast.show{opacity:1;transform:translate(-50%,0)}
/* LESSON */
.lesson-view{min-height:100vh;background:var(--bg)}.lesson-progress{position:fixed;top:88px;left:0;right:0;height:2px;z-index:70;background:transparent}.lesson-progress span{display:block;height:100%;width:0;background:var(--accent)}.lesson-shell{display:grid;grid-template-columns:230px minmax(0,820px) 270px;gap:55px;align-items:start;padding:70px 0 120px}.lesson-sidebar,.lesson-rail{position:sticky;top:120px}.back-button{border:0;background:transparent;padding:0;color:var(--accent);cursor:pointer;margin-bottom:34px}.lesson-sidebar nav{display:flex;flex-direction:column;border-left:1px solid var(--line);margin-bottom:28px}.lesson-sidebar nav a{font-size:.76rem;color:var(--muted);text-decoration:none;padding:8px 14px}.lesson-sidebar nav a:hover{color:var(--text);border-left:1px solid var(--accent);margin-left:-1px}.sidebar-card,.rail-card{border:1px solid var(--line);background:var(--panel);padding:18px;border-radius:12px}.sidebar-card p{font-size:.82rem;color:var(--muted)}.lesson-article{min-width:0}.breadcrumbs{display:flex;gap:8px;color:var(--muted);font-size:.74rem;margin-bottom:28px;flex-wrap:wrap}.breadcrumbs button{border:0;background:none;color:var(--accent);cursor:pointer;padding:0}.lesson-kicker{display:flex;align-items:center;gap:9px;font-size:.7rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted)}.lesson-title{font-size:clamp(3rem,5vw,5.4rem);line-height:.98;margin:14px 0 22px}.lesson-summary{font-size:1.2rem;line-height:1.8;color:var(--muted);margin-bottom:24px}.lesson-meta-row{display:flex;gap:8px;flex-wrap:wrap;margin:20px 0 30px}.pill{border:1px solid var(--line);border-radius:999px;padding:5px 9px;color:var(--muted);font-size:.7rem}.lesson-actions{display:flex;gap:9px;flex-wrap:wrap;padding-bottom:32px;border-bottom:1px solid var(--line);margin-bottom:34px}.lesson-body section{scroll-margin-top:130px;margin:0 0 46px}.lesson-body h2{font-family:var(--serif);font-size:2.15rem;font-weight:400;margin:0 0 14px}.lesson-body p,.lesson-body li{color:color-mix(in srgb,var(--text) 84%,var(--muted));line-height:1.85}.lesson-body ul{padding-left:20px}.callout{border-left:2px solid var(--accent);background:var(--accent-soft);padding:18px 20px;margin:22px 0;border-radius:0 10px 10px 0}.callout strong{display:block;font-size:.72rem;letter-spacing:.12em;color:var(--accent);text-transform:uppercase;margin-bottom:5px}.misconception{border:1px solid var(--line);padding:20px;border-radius:12px;background:var(--panel)}.code-sample{position:relative;background:#090c0e;color:#e9e6df;border:1px solid #2f3638;border-radius:12px;padding:18px 20px;font-family:"SFMono-Regular",Consolas,monospace;font-size:.84rem;overflow:auto}.interactive{border:1px solid var(--line2);border-radius:16px;background:linear-gradient(145deg,var(--panel2),var(--panel));padding:22px;margin:28px 0}.interactive-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:20px}.interactive-head h3{font-family:var(--serif);font-size:1.55rem;font-weight:400;margin:0}.interactive-head span{font-size:.66rem;color:var(--accent);text-transform:uppercase;letter-spacing:.12em}.visual-stage{min-height:250px;border:1px solid var(--line);border-radius:12px;background:var(--bg);position:relative;overflow:hidden;padding:18px}.controls{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-top:14px}.controls label{font-size:.76rem;color:var(--muted)}.controls input[type="range"]{accent-color:var(--accent)}.controls input[type="text"],.controls input[type="number"]{background:var(--bg);border:1px solid var(--line2);color:var(--text);padding:8px 10px;border-radius:7px}.diagram-row{display:flex;align-items:center;justify-content:space-between;gap:8px;height:100%;min-height:210px}.diagram-node{flex:1;min-width:80px;border:1px solid var(--line);background:var(--panel);border-radius:10px;padding:14px 9px;text-align:center;font-size:.72rem;color:var(--muted);transition:.25s}.diagram-node.active{border-color:var(--accent);color:var(--text);box-shadow:0 0 0 4px var(--accent-soft)}.diagram-arrow{color:var(--faint)}.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.metric{border:1px solid var(--line);background:var(--panel);border-radius:9px;padding:12px}.metric span{display:block;color:var(--muted);font-size:.64rem;text-transform:uppercase}.metric strong{font-family:var(--serif);font-weight:400;font-size:1.2rem}.quiz{border-top:1px solid var(--line);padding-top:25px}.quiz h3{font-family:var(--serif);font-weight:400;font-size:1.7rem}.quiz-options{display:grid;gap:8px}.quiz-options button{text-align:left;border:1px solid var(--line);background:var(--panel);padding:12px;border-radius:9px;cursor:pointer}.quiz-options button:hover{border-color:var(--line2);background:var(--panel2)}.quiz-options button.correct{border-color:var(--good)}.quiz-options button.wrong{border-color:#b66d65}.quiz-feedback{min-height:48px;color:var(--muted);font-size:.85rem;padding-top:10px}.rail-card{margin-bottom:12px}.rail-card h3{font-family:var(--serif);font-weight:400;font-size:1.2rem;margin:0 0 12px}.rail-card a,.rail-card button{display:block;width:100%;text-align:left;border:0;background:none;color:var(--muted);font-size:.78rem;padding:6px 0;cursor:pointer;text-decoration:none}.rail-card a:hover,.rail-card button:hover{color:var(--accent)}.reference-list{margin:0;padding-left:18px}.reference-list li{margin:8px 0;color:var(--muted);font-size:.76rem}.reference-list a{text-decoration:none}.reference-list a:hover{color:var(--accent)}.audio-state{font-size:.74rem;color:var(--muted);margin-left:auto}.wave-canvas,.math-canvas{width:100%;height:220px;display:block}.permission-display{font-family:monospace;font-size:2rem;text-align:center;padding:52px 10px}.qubit-viz{width:210px;height:210px;border:1px solid var(--line2);border-radius:50%;margin:0 auto;position:relative}.qubit-viz:before,.qubit-viz:after{content:"";position:absolute;left:50%;top:8%;bottom:8%;width:1px;background:var(--line)}.qubit-viz:after{left:8%;right:8%;top:50%;bottom:auto;width:auto;height:1px}.qubit-dot{width:14px;height:14px;background:var(--accent);border-radius:50%;position:absolute;left:calc(50% - 7px);top:4px;box-shadow:0 0 18px var(--accent);transition:.2s}.cpu-stage{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.cpu-box{border:1px solid var(--line);border-radius:10px;padding:16px;text-align:center;color:var(--muted)}.cpu-box.active{border-color:var(--accent);color:var(--text);background:var(--accent-soft)}.incident-stage{display:grid;gap:10px}.incident-stage button{border:1px solid var(--line);background:var(--panel);color:var(--text);padding:12px;border-radius:9px;text-align:left;cursor:pointer}.incident-stage button:hover{border-color:var(--accent)}
body.motion-paused *,body.motion-paused *:before,body.motion-paused *:after{animation-play-state:paused!important;transition:none!important}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}
@media(max-width:1180px){:root{--shell:min(100% - 40px,1100px)}.hero{grid-template-columns:1fr;gap:35px}.constellation-panel{min-height:460px}.domain-grid{grid-template-columns:repeat(3,1fr)}.domain-card.wide{grid-column:span 1}.lesson-grid{grid-template-columns:repeat(2,1fr)}.principle-grid{grid-template-columns:repeat(2,1fr)}.lesson-shell{grid-template-columns:190px minmax(0,1fr)}.lesson-rail{grid-column:2;position:static;display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.lesson-progress{top:88px}}
@media(max-width:820px){:root{--shell:calc(100% - 28px)}.site-header{padding:0 14px;height:72px}.menu-button{display:inline-block}.header-tools{margin-left:12px}.hero{padding:55px 0;min-height:auto}.hero h1{font-size:3.5rem}.stats{grid-template-columns:repeat(2,1fr)}.stats div{border-bottom:1px solid var(--line)}.section{padding:75px 0}.section-heading{display:block}.section-heading>p{max-width:100%}.domain-grid,.lesson-grid,.path-grid,.atlas-grid,.principle-grid{grid-template-columns:1fr}.filters{display:grid;grid-template-columns:1fr 1fr}.filters label{justify-content:space-between}.search-stage{top:72px}.lesson-shell{display:block;padding-top:35px}.lesson-sidebar,.lesson-rail{position:static}.lesson-sidebar nav{display:none}.sidebar-card{display:none}.lesson-rail{display:grid;grid-template-columns:1fr}.lesson-title{font-size:3.3rem}.lesson-progress{top:72px}.site-footer{grid-template-columns:1fr}.footer-links{flex-wrap:wrap}.site-footer small{grid-column:auto}.diagram-row{flex-direction:column}.diagram-arrow{transform:rotate(90deg)}.metric-grid,.cpu-stage{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.site-header{padding-inline:12px}.brand{gap:0;min-width:0}.brand span{display:none}.brand strong{font-size:1.55rem}.header-tools{gap:5px;margin-left:auto}.icon-button{width:36px;height:36px}.icon-button svg{width:20px;height:20px}.hero h1{font-size:2.8rem}.hero-lead{font-size:1rem}.constellation-panel canvas{height:280px}.stats{grid-template-columns:1fr 1fr}.stats div{padding:20px 14px}.stats strong{font-size:1.7rem}.filters{grid-template-columns:1fr}.search-box kbd{display:none}.lesson-title{font-size:2.7rem}.lesson-summary{font-size:1.05rem}.metric-grid{grid-template-columns:1fr 1fr}}

/* v0.2.0 — curriculum, glossary, knowledge graph, focus reading, and expanded interactive labs */
.stats{grid-template-columns:repeat(5,1fr)}
.resume-strip{border-bottom:1px solid var(--line);background:linear-gradient(90deg,var(--accent-soft),transparent 60%)}
.resume-inner{min-height:150px;display:flex;align-items:center;justify-content:space-between;gap:36px;padding-block:28px}
.resume-inner h2{font-family:var(--serif);font-weight:400;font-size:clamp(1.7rem,3vw,2.8rem);margin:5px 0}
.resume-inner p{margin:0;color:var(--muted)}.resume-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.curriculum{background:var(--bg);border-bottom:1px solid var(--line)}
.curriculum-layout{display:grid;grid-template-columns:255px minmax(0,1fr);gap:0;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:var(--panel)}
.curriculum-tabs{border-right:1px solid var(--line);background:var(--bg2);padding:12px;display:flex;flex-direction:column;gap:4px}
.curriculum-tabs button{border:0;background:transparent;color:var(--muted);text-align:left;padding:13px 12px;border-radius:9px;cursor:pointer;display:flex;align-items:center;gap:10px;font-size:.82rem}
.curriculum-tabs button span{width:24px;color:var(--accent);font-family:var(--serif);font-size:1.1rem;text-align:center}
.curriculum-tabs button:hover,.curriculum-tabs button.active{background:var(--panel2);color:var(--text)}
.curriculum-panel{min-width:0}.curriculum-summary{display:flex;justify-content:space-between;align-items:end;gap:30px;padding:28px;border-bottom:1px solid var(--line)}
.curriculum-summary h3{font-family:var(--serif);font-weight:400;font-size:2rem;margin:4px 0 0}.curriculum-summary>span{color:var(--accent);font-size:.78rem;text-transform:uppercase;letter-spacing:.08em}
.curriculum-categories{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.curriculum-category{display:grid;grid-template-columns:52px 1fr;gap:16px;padding:25px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-height:230px}.curriculum-category:nth-child(even){border-right:0}
.curriculum-number{font-family:var(--serif);font-size:1.5rem;color:var(--accent)}.curriculum-category h4{font-family:var(--serif);font-weight:400;font-size:1.55rem;margin:0 0 6px}.curriculum-category p{color:var(--muted);font-size:.82rem;margin:0 0 12px}
.curriculum-links{display:grid;gap:4px;margin-bottom:14px}.curriculum-links button{border:0;background:none;color:var(--muted);padding:3px 0;text-align:left;cursor:pointer;font-size:.77rem}.curriculum-links button:hover{color:var(--accent)}
.search-extras{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:0 0 18px}.search-extras>div{border:1px solid var(--line);background:var(--panel);border-radius:12px;padding:14px 16px}.extra-links{display:flex;gap:7px;flex-wrap:wrap;margin-top:8px}.extra-links button{border:1px solid var(--line);background:var(--panel2);color:var(--muted);border-radius:999px;padding:6px 9px;font-size:.72rem;cursor:pointer}.extra-links button:hover{color:var(--text);border-color:var(--accent)}.extra-links small{color:var(--accent)}
.atlas-topics span.highlight{outline:2px solid var(--accent);background:var(--accent-soft);color:var(--text);transform:translateY(-1px)}
.connections{background:var(--bg2);border-block:1px solid var(--line)}.graph-layout{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(260px,.55fr);gap:18px}.graph-panel,.graph-detail{border:1px solid var(--line);background:var(--panel);border-radius:18px}.graph-panel{min-height:560px;overflow:hidden}.graph-panel canvas{display:block;width:100%;height:560px;cursor:pointer}.graph-detail{padding:28px;display:flex;flex-direction:column}.graph-detail h3{font-family:var(--serif);font-weight:400;font-size:2.2rem;margin:6px 0 10px}.graph-detail>p:not(.eyebrow){color:var(--muted)}.graph-buttons{display:grid;gap:5px;margin-top:auto}.graph-buttons button,.graph-bridges button{border:0;background:transparent;color:var(--muted);padding:7px 0;text-align:left;cursor:pointer}.graph-buttons button:hover,.graph-buttons button.active,.graph-bridges button:hover{color:var(--accent)}.graph-bridges{border-top:1px solid var(--line);margin-top:20px;padding-top:18px;display:grid}
.glossary{background:var(--bg)}.glossary-search{height:60px;border:1px solid var(--line2);border-radius:12px;background:var(--panel);display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;padding:0 16px;max-width:840px}.glossary-search span{color:var(--accent);font-size:1.4rem}.glossary-search input{border:0;background:transparent;color:var(--text);outline:0;font-size:1rem;width:100%}.glossary-letters{display:flex;flex-wrap:wrap;gap:5px;margin:20px 0}.glossary-letters button{width:34px;height:34px;border:1px solid var(--line);background:var(--panel);color:var(--muted);border-radius:8px;cursor:pointer;font-size:.75rem}.glossary-letters button:first-child{width:auto;padding-inline:12px}.glossary-letters button.active,.glossary-letters button:hover{background:var(--accent);border-color:var(--accent);color:#161412}.glossary-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line);border-left:1px solid var(--line)}.glossary-card{padding:22px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--panel);min-height:210px}.glossary-term{display:flex;align-items:start;justify-content:space-between;gap:15px}.glossary-term h3,.glossary-card h3{font-family:var(--serif);font-weight:400;font-size:1.55rem;margin:0}.glossary-term span{font-size:.62rem;color:var(--accent);text-transform:uppercase;letter-spacing:.08em;text-align:right}.glossary-card p{color:var(--muted);font-size:.84rem;line-height:1.7}
.narration-rate{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:.74rem}.narration-rate select{background:var(--panel);border:1px solid var(--line);color:var(--text);border-radius:8px;padding:8px 9px}.focus-reading .lesson-shell{grid-template-columns:minmax(0,920px);justify-content:center}.focus-reading .lesson-sidebar,.focus-reading .lesson-rail{display:none}.focus-reading .lesson-article{max-width:920px;margin-inline:auto}.path-mini-progress{height:5px;background:var(--bg);border-radius:999px;overflow:hidden;margin:10px 0}.path-mini-progress span{display:block;height:100%;background:var(--accent)}.path-rail>p:not(.eyebrow){font-size:.72rem;color:var(--muted)}
.lb-wrap{min-height:210px;display:grid;grid-template-columns:auto auto auto auto 1fr;align-items:center;gap:12px}.lb-client,.lb-core{border:1px solid var(--line2);border-radius:10px;background:var(--panel);padding:18px 14px;text-align:center}.lb-core{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}.lb-arrow{color:var(--faint)}.lb-backends{display:grid;gap:8px}.lb-backends button{border:1px solid var(--line);background:var(--panel);color:var(--text);padding:10px;border-radius:9px;cursor:pointer}.lb-backends button span{display:block;color:var(--good);font-size:.65rem}.lb-backends button.down{opacity:.45}.lb-backends button.down span{color:#b66d65}.lb-backends button.selected{border-color:var(--accent);background:var(--accent-soft)}
.binary-bits{display:grid;grid-template-columns:repeat(8,1fr);gap:7px;margin:30px 0}.binary-bits span{border:1px solid var(--line);background:var(--panel);border-radius:9px;padding:16px 5px;text-align:center}.binary-bits span.on{border-color:var(--accent);background:var(--accent-soft)}.binary-bits b{display:block;font-size:1.4rem}.binary-bits small{color:var(--muted);font-size:.62rem}
.logic-stage{min-height:220px;display:grid;grid-template-columns:1fr 1.2fr 1fr 1.3fr;align-items:center;gap:14px}.logic-stage button{border:1px solid var(--line);background:var(--panel);padding:18px;border-radius:10px;cursor:pointer}.logic-gate{border:1px solid var(--accent);background:var(--accent-soft);padding:30px 15px;border-radius:40% 14px 14px 40%;text-align:center;font-weight:700}.logic-result{font-family:var(--serif);font-size:1.35rem;text-align:center}.logic-result strong{color:var(--accent);font-size:2rem}
.latency-ladder{display:grid;gap:7px}.latency-ladder button{display:grid;grid-template-columns:120px 1fr 120px;gap:10px;align-items:center;border:1px solid var(--line);background:var(--panel);color:var(--muted);padding:10px;border-radius:8px;cursor:pointer;text-align:left}.latency-ladder button i{height:8px;background:var(--accent);border-radius:999px;display:block}.latency-ladder button b{font-size:.66rem;font-weight:600;text-align:right}.latency-ladder button.selected{border-color:var(--accent);color:var(--text)}
.queue-stage{min-height:180px;display:flex;align-items:center;gap:10px;overflow:auto}.queue-stage>div{display:flex;gap:7px}.queue-stage>div span{min-width:70px;border:1px solid var(--accent);background:var(--accent-soft);padding:18px 10px;border-radius:9px;text-align:center}.queue-stage>div em{color:var(--muted)}.queue-label{font-size:.62rem;color:var(--muted);letter-spacing:.1em}.rbac-stage{display:grid;grid-template-columns:180px 1fr;gap:15px;min-height:230px}.rbac-roles{display:grid;gap:7px;align-content:start}.rbac-roles button{border:1px solid var(--line);background:var(--panel);color:var(--muted);padding:11px;border-radius:8px;text-align:left;cursor:pointer}.rbac-roles button.selected{border-color:var(--accent);color:var(--text)}.rbac-perms{border:1px solid var(--line);border-radius:10px;padding:18px;display:grid;align-content:start;gap:8px}.rbac-perms h4{font-family:var(--serif);font-size:1.4rem;font-weight:400;margin:0 0 8px}.rbac-perms span{color:var(--good)}.rbac-perms .denied{color:var(--muted);border-top:1px solid var(--line);padding-top:10px;margin-top:4px}

@media(max-width:1180px){.stats{grid-template-columns:repeat(3,1fr)}.glossary-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.graph-layout{grid-template-columns:1fr}.graph-detail{min-height:320px}.graph-buttons{grid-template-columns:repeat(2,1fr)}}
@media(max-width:820px){.resume-inner{align-items:flex-start;flex-direction:column}.curriculum-layout{grid-template-columns:1fr}.curriculum-tabs{border-right:0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:repeat(2,1fr)}.curriculum-categories{grid-template-columns:1fr}.curriculum-category{border-right:0}.search-extras{grid-template-columns:1fr}.glossary-grid{grid-template-columns:minmax(0,1fr)}.graph-panel{min-height:430px}.graph-panel canvas{height:430px}.lb-wrap{grid-template-columns:1fr}.lb-arrow{transform:rotate(90deg);text-align:center}.logic-stage{grid-template-columns:1fr 1fr}.rbac-stage{grid-template-columns:1fr}.stats{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.curriculum-tabs{grid-template-columns:1fr}.curriculum-summary{align-items:flex-start;flex-direction:column}.curriculum-category{grid-template-columns:38px 1fr;padding:20px 14px}.glossary-letters{gap:4px}.graph-panel{min-height:360px}.graph-panel canvas{height:360px}.binary-bits{grid-template-columns:repeat(4,1fr)}.latency-ladder button{grid-template-columns:86px 1fr}.latency-ladder button b{display:none}.logic-stage{grid-template-columns:1fr}.stats{grid-template-columns:1fr 1fr}}


/* v0.4.0 — verification, retention, labs, and expanded interactive models */
.verification-strip{border-block:1px solid var(--line);background:linear-gradient(90deg,var(--bg2),var(--panel))}.verification-inner{display:grid;grid-template-columns:auto 1fr auto;gap:22px;align-items:center;padding-block:30px}.verification-mark{width:58px;height:58px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--good);color:var(--good);font-family:var(--serif);font-size:2rem}.verification-inner h2{font-family:var(--serif);font-weight:400;font-size:clamp(1.5rem,3vw,2.2rem);margin:3px 0 8px}.verification-inner p:not(.eyebrow){color:var(--muted);max-width:850px;margin:0}.verification-actions{display:grid;gap:5px;min-width:180px;text-align:right}.verification-actions strong{font-family:var(--serif);font-size:2rem;color:var(--good);font-weight:400}.verification-actions span{color:var(--muted);font-size:.75rem}.verified-mini{margin-left:auto;color:var(--good);border:1px solid color-mix(in srgb,var(--good) 40%,transparent);border-radius:999px;padding:2px 7px;font-size:.58rem;letter-spacing:.06em;text-transform:uppercase}.verified-pill{border-color:color-mix(in srgb,var(--good) 50%,var(--line));color:var(--good)}.version-pill{border-color:var(--accent);color:var(--accent2)}
.practice{background:var(--bg2);border-block:1px solid var(--line)}.practice-grid{display:grid;grid-template-columns:1.15fr 1fr .85fr;gap:16px}.practice-card{border:1px solid var(--line);background:var(--panel);border-radius:16px;padding:24px;min-width:0}.practice-card-top{display:flex;gap:13px;align-items:center;margin-bottom:20px}.practice-icon{width:42px;height:42px;border:1px solid var(--line2);border-radius:11px;display:grid;place-items:center;color:var(--accent);font-family:var(--serif);font-size:1.15rem}.practice-card h3{font-family:var(--serif);font-size:1.7rem;font-weight:400;margin:2px 0}.practice-card h4{font-family:var(--serif);font-size:1.35rem;font-weight:400;margin:7px 0 15px}.challenge-domain,.flash-domain{font-size:.65rem;text-transform:uppercase;letter-spacing:.09em;color:var(--accent)}.recall-options{display:grid;gap:8px}.recall-options button{border:1px solid var(--line);background:var(--panel2);color:var(--text);text-align:left;padding:12px 14px;border-radius:9px;cursor:pointer;line-height:1.45}.recall-options button:hover:not(:disabled){border-color:var(--accent)}.recall-options button.correct{border-color:var(--good);background:color-mix(in srgb,var(--good) 10%,var(--panel2))}.recall-options button.wrong{border-color:#a35f59}.recall-feedback{min-height:44px}.practice-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:16px}.flashcard{border:1px solid var(--line2);border-radius:14px;min-height:225px;padding:26px;display:flex;flex-direction:column;justify-content:center;cursor:pointer;background:linear-gradient(145deg,var(--panel2),var(--panel))}.flashcard strong{font-family:var(--serif);font-size:2rem;font-weight:400;margin:8px 0}.flashcard p{color:var(--muted)}.retention-metrics{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-bottom:18px}.retention-metrics>div{padding:15px 10px;border-right:1px solid var(--line);text-align:center}.retention-metrics>div:last-child{border:0}.retention-metrics strong{font-family:var(--serif);font-size:1.55rem;font-weight:400;display:block;color:var(--accent)}.retention-metrics span{font-size:.63rem;color:var(--muted)}
.labs{background:var(--bg)}.lab-toolbar{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:16px;color:var(--muted);font-size:.78rem}.lab-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.lab-card{border:1px solid var(--line);background:var(--panel);border-radius:14px;padding:20px;display:flex;flex-direction:column;min-height:310px}.lab-card h3{font-family:var(--serif);font-weight:400;font-size:1.45rem;margin:5px 0 9px}.lab-card>p:not(.eyebrow){color:var(--muted);font-size:.82rem}.lab-card>div:last-child{margin-top:auto;display:flex;justify-content:space-between;gap:10px;align-items:center;color:var(--muted);font-size:.7rem}.lab-visual{height:82px;border:1px solid var(--line);border-radius:10px;margin-bottom:17px;display:flex;align-items:center;justify-content:center;gap:10px;overflow:hidden;background:var(--bg2)}.lab-visual span{font-family:var(--serif);font-size:1.8rem;color:var(--accent)}.lab-visual i{width:8px;height:8px;border-radius:50%;background:var(--line2);position:relative}.lab-visual i:before{content:"";position:absolute;width:18px;height:1px;background:var(--line2);right:8px;top:3px}
.evidence-guide{background:var(--bg2);border-block:1px solid var(--line)}.evidence-steps{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.evidence-steps article{padding:25px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--panel)}.evidence-steps article>span{color:var(--accent);font-family:var(--serif);font-size:1.3rem}.evidence-steps h3{font-family:var(--serif);font-weight:400;font-size:1.4rem}.evidence-steps p{color:var(--muted);font-size:.82rem}.verification-box{border:1px solid color-mix(in srgb,var(--good) 45%,var(--line));border-radius:14px;background:linear-gradient(145deg,color-mix(in srgb,var(--good) 6%,var(--panel)),var(--panel));overflow:hidden}.verification-box-head{display:flex;gap:14px;align-items:center;padding:22px;border-bottom:1px solid var(--line)}.verified-seal{width:42px;height:42px;border:1px solid var(--good);border-radius:50%;display:grid;place-items:center;color:var(--good);font-size:1.25rem}.verification-box-head strong{font-family:var(--serif);font-size:1.4rem;font-weight:400}.verification-box-head p{margin:3px 0 0;color:var(--muted);font-size:.8rem}.verification-facts{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--line)}.verification-facts span{padding:14px;border-right:1px solid var(--line);font-size:.74rem;color:var(--muted)}.verification-facts span:last-child{border:0}.verification-facts b{display:block;color:var(--text);font-size:.62rem;text-transform:uppercase;letter-spacing:.08em;margin-bottom:4px}.version-notice{padding:14px 20px;border-bottom:1px solid var(--line);background:var(--accent-soft)}.version-notice strong{color:var(--accent2)}.version-notice p{margin:3px 0 0;font-size:.78rem}.evidence-list{list-style:none;padding:0;margin:0}.evidence-list li{display:grid;grid-template-columns:34px 1fr;gap:10px;padding:14px 20px;border-bottom:1px solid var(--line)}.evidence-list li:last-child{border:0}.evidence-list li>span{color:var(--faint);font-family:var(--serif)}.evidence-list a{color:var(--text);text-decoration:none}.evidence-list a:hover{color:var(--accent)}.evidence-list small{display:block;color:var(--muted);margin-top:3px}.verify-rail{border-color:color-mix(in srgb,var(--good) 40%,var(--line))}.verify-rail h3{color:var(--good)}
.route-table{border:1px solid var(--line);border-radius:10px;overflow:hidden}.route-row{display:grid;grid-template-columns:1fr 1fr 90px;gap:10px;padding:11px 13px;border-bottom:1px solid var(--line);align-items:center}.route-row:last-child{border:0}.route-row.head{background:var(--panel2);color:var(--muted);font-size:.65rem;text-transform:uppercase;letter-spacing:.08em}.route-row.match{background:var(--accent-soft)}.route-row.winner{outline:2px solid var(--good);outline-offset:-2px}.route-row strong{color:var(--good);font-size:.68rem}.route-result{border:1px solid var(--line);background:var(--panel);border-radius:9px;padding:14px;margin-top:12px;color:var(--muted)}.route-result b,.route-result strong{color:var(--text)}
.kube-flow{min-height:210px;display:flex;align-items:center;justify-content:center;gap:28px}.kube-service,.kube-pod{border:1px solid var(--line2);background:var(--panel);border-radius:13px;padding:22px;text-align:center}.kube-service small{display:block;color:var(--muted);max-width:160px;margin-top:5px}.kube-pod{display:grid;gap:7px;min-width:170px;border-color:var(--good)}.kube-pod span{color:var(--good)}.kube-pod small{color:var(--muted)}.kube-pod.not-ready{border-color:var(--accent)}.kube-pod.not-ready [data-ready]{color:var(--accent2)}.kube-pod.not-live{border-color:#a35f59}.reconcile-summary{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:18px}.reconcile-summary>div{border:1px solid var(--line);background:var(--panel);border-radius:11px;padding:18px;text-align:center}.reconcile-summary span{display:block;color:var(--muted);font-size:.7rem}.reconcile-summary strong{font-family:var(--serif);font-size:2rem;font-weight:400}.reconcile-arrow{color:var(--accent);font-size:.75rem}.pod-field{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;padding:22px}.pod-field span{border:1px solid var(--good);border-radius:999px;padding:8px 12px;color:var(--good);font-size:.75rem}.cache-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.cache-set{border:1px solid var(--line);border-radius:9px;background:var(--panel);padding:12px;display:grid;gap:7px}.cache-set strong{color:var(--muted);font-size:.7rem}.cache-set span{border:1px solid var(--line);padding:12px 6px;border-radius:7px;text-align:center}.cache-set.selected{border-color:var(--accent);background:var(--accent-soft)}.mpi-ranks{display:grid;grid-template-columns:repeat(4,1fr);gap:9px}.mpi-rank{border:1px solid var(--line);background:var(--panel);padding:18px 10px;border-radius:10px;text-align:center}.mpi-rank span{display:block;color:var(--muted);font-size:.68rem;margin-top:5px}.mpi-rank.sending{border-color:var(--accent);background:var(--accent-soft)}.mpi-rank.receiving{border-color:var(--good);background:color-mix(in srgb,var(--good) 8%,var(--panel))}.warp-lanes{display:grid;grid-template-columns:repeat(16,1fr);gap:4px;margin-bottom:17px}.warp-lanes span{border:1px solid var(--line);border-radius:5px;padding:8px 2px;text-align:center;font-size:.64rem}.warp-lanes .path-a.active{border-color:var(--accent);background:var(--accent-soft)}.warp-lanes .path-b.active{border-color:var(--good);background:color-mix(in srgb,var(--good) 9%,var(--panel))}.warp-lanes .muted-lane{opacity:.2}.quantum-gate-stage{display:grid;grid-template-columns:.6fr 1.4fr;gap:20px;align-items:center}.state-vector{border:1px solid var(--line);border-radius:12px;background:var(--panel);padding:20px;display:grid;grid-template-columns:auto 1fr;gap:10px}.state-vector span{color:var(--muted)}.prob-bars{display:grid;gap:13px}.prob-bars>div{display:grid;grid-template-columns:45px 1fr 65px;gap:8px;align-items:center}.prob-bars i{height:12px;background:var(--panel2);border:1px solid var(--line);border-radius:999px;overflow:hidden}.prob-bars b{display:block;height:100%;background:var(--accent);transition:width .2s ease}.btree{text-align:center;padding:18px}.btree-node{border:1px solid var(--line);background:var(--panel);border-radius:9px;padding:13px;transition:.2s}.btree-node.root{display:inline-block}.btree-node.active{border-color:var(--accent);background:var(--accent-soft)}.btree-links{color:var(--faint);padding:12px}.btree-children{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.zt-flow{display:grid;grid-template-columns:repeat(3,1fr) auto;gap:10px;align-items:stretch}.zt-flow>div{border:1px solid var(--line);background:var(--panel);border-radius:10px;padding:16px}.zt-flow>div b{display:block;color:var(--good);margin-top:6px}.zt-flow>strong{border:1px solid var(--good);color:var(--good);border-radius:10px;padding:22px 16px;display:grid;place-items:center}.zt-flow>strong.deny{border-color:#a35f59;color:#d78e86}.toil-checks{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}.toil-checks span{border:1px solid var(--line);border-radius:999px;padding:6px 9px;font-size:.68rem;color:var(--muted)}
@media(max-width:1050px){.practice-grid{grid-template-columns:1fr 1fr}.retention-card{grid-column:1/-1}.lab-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.evidence-steps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){.verification-inner{grid-template-columns:auto 1fr}.verification-actions{grid-column:1/-1;text-align:left;display:flex;flex-wrap:wrap;align-items:center;gap:10px}.practice-grid,.lab-grid{grid-template-columns:1fr}.retention-card{grid-column:auto}.verification-facts{grid-template-columns:1fr 1fr}.evidence-steps{grid-template-columns:1fr}.kube-flow{flex-direction:column;gap:12px}.reconcile-summary{grid-template-columns:1fr}.reconcile-arrow{transform:rotate(90deg)}.mpi-ranks{grid-template-columns:1fr 1fr}.warp-lanes{grid-template-columns:repeat(8,1fr)}.quantum-gate-stage{grid-template-columns:1fr}.zt-flow{grid-template-columns:1fr 1fr}.cache-grid{grid-template-columns:1fr 1fr}}
@media(max-width:460px){.verification-facts,.retention-metrics,.zt-flow{grid-template-columns:1fr}.verification-facts span,.retention-metrics>div{border-right:0;border-bottom:1px solid var(--line)}.route-row{grid-template-columns:1fr 1fr}.route-row span:nth-child(2){display:none}.btree-children{grid-template-columns:1fr}.cache-grid{grid-template-columns:1fr}.mpi-ranks{grid-template-columns:1fr 1fr}}


/* v0.6.0 — multi-page, responsive learning experience */
.learn-page-nav{display:flex;gap:6px;align-items:center;padding:18px 0;overflow-x:auto;overscroll-behavior-inline:contain;scrollbar-width:thin;border-bottom:1px solid var(--line)}
.learn-page-nav a{flex:0 0 auto;text-decoration:none;color:var(--muted);border:1px solid transparent;border-radius:999px;padding:9px 13px;font-size:.75rem;white-space:nowrap}
.learn-page-nav a:hover{color:var(--text);border-color:var(--line)}.learn-page-nav a[aria-current="page"]{color:var(--text);border-color:var(--accent);background:var(--accent-soft)}
.learn-page-intro{padding:54px 0 30px}.learn-page-intro h1{font-family:var(--serif);font-size:clamp(2.5rem,6vw,4.8rem);font-weight:400;line-height:1;margin:8px 0 15px}.learn-page-intro>p:last-child{max-width:760px;color:var(--muted);font-size:1.05rem;line-height:1.7}
.lesson-progress{top:88px}.lesson-shell{display:block!important;max-width:1180px;padding:34px 0 80px!important}.lesson-sidebar,.lesson-rail{display:none!important}.lesson-topbar{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:0 0 22px;border-bottom:1px solid var(--line);margin-bottom:34px}.lesson-topbar .back-button{margin:0}.lesson-progress-tools{display:flex;align-items:center;gap:12px}.lesson-progress-tools span{display:grid;text-align:right}.lesson-progress-tools b{font-size:.8rem}.lesson-progress-tools small{font-size:.65rem;color:var(--muted)}
.lesson-article{max-width:1120px;margin:0 auto}.lesson-title{font-size:clamp(2.7rem,6vw,5.2rem)}.lesson-summary{max-width:900px}.lesson-actions{align-items:center;margin-bottom:18px}.lesson-actions .voice-control,.lesson-actions .narration-rate{display:flex;align-items:center;gap:6px;color:var(--muted);font-size:.72rem}.lesson-actions select{max-width:230px;background:var(--bg);color:var(--text);border:1px solid var(--line2);border-radius:8px;padding:9px 28px 9px 9px;font-size:.78rem}.lesson-actions .audio-state{flex-basis:100%;margin-left:0}
.lesson-page-tabs{position:sticky;top:88px;z-index:55;display:flex;gap:5px;overflow-x:auto;scrollbar-width:thin;padding:10px 0;background:color-mix(in srgb,var(--bg) 94%,transparent);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);margin-bottom:18px}.lesson-page-tabs button{flex:0 0 auto;border:1px solid var(--line);background:var(--panel);color:var(--muted);border-radius:999px;padding:9px 14px;cursor:pointer}.lesson-page-tabs button.active{border-color:var(--accent);background:var(--accent-soft);color:var(--text)}
.lesson-dashboard{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:18px 0 34px}.lesson-dashboard article{min-width:0;border:1px solid var(--line);background:var(--panel);border-radius:12px;padding:15px;display:flex;flex-direction:column;align-items:flex-start;gap:5px}.lesson-dashboard strong{font-family:var(--serif);font-size:1.08rem;font-weight:400;line-height:1.25}.lesson-dashboard small{color:var(--muted);font-size:.68rem}.lesson-dashboard .text-button{font-size:.68rem;padding:3px 0}.verified-dashboard{border-color:color-mix(in srgb,var(--good) 45%,var(--line))!important}
.lesson-page-content{max-width:900px;min-height:360px}.lesson-page-content section{margin-bottom:30px!important}.lesson-page-content h2{font-size:clamp(1.75rem,4vw,2.25rem)}.overview-next{display:flex;justify-content:flex-end;padding-top:8px}.hands-on-card,.practice-prompt{border:1px solid var(--line);background:var(--panel);border-radius:14px;padding:22px}.hands-on-card h3,.practice-prompt h3{font-family:var(--serif);font-size:1.45rem;font-weight:400}.hands-on-card li{margin:.5rem 0}.practice-complete{display:flex;gap:9px;flex-wrap:wrap;margin-top:18px}
.focus-reading .lesson-dashboard,.focus-reading .breadcrumbs,.focus-reading .lesson-meta-row{display:none}.focus-reading .lesson-page-content{max-width:760px;margin-inline:auto}.focus-reading .lesson-page-tabs{max-width:760px;margin-inline:auto}
@media(max-width:1100px){.lesson-dashboard{grid-template-columns:repeat(2,minmax(0,1fr))}.lesson-article{max-width:900px}.lesson-page-content{max-width:100%}}
@media(max-width:820px){.learn-page-nav{padding:12px 0}.learn-page-intro{padding:35px 0 18px}.lesson-shell{padding-top:20px!important}.lesson-topbar{position:static;align-items:flex-start}.lesson-page-tabs{top:72px}.lesson-actions .button,.lesson-actions .text-button{min-height:44px}.lesson-actions .voice-control,.lesson-actions .narration-rate{width:100%;justify-content:space-between}.lesson-actions select{flex:1;max-width:none}.lesson-title{font-size:clamp(2.45rem,12vw,4rem)}.interactive{padding:14px}.visual-stage{min-height:210px}.metric-grid{grid-template-columns:repeat(2,1fr)}.diagram-row{overflow-x:auto;justify-content:flex-start;padding-bottom:8px}.diagram-node{min-width:120px;flex:0 0 120px}}
@media(max-width:600px){.lesson-dashboard{grid-template-columns:1fr}.lesson-topbar{display:grid;grid-template-columns:1fr}.lesson-progress-tools{justify-content:space-between}.lesson-progress-tools span{text-align:left}.lesson-page-tabs button{min-height:44px}.lesson-actions{display:grid;grid-template-columns:1fr 1fr}.lesson-actions>*{min-width:0}.lesson-actions .voice-control,.lesson-actions .narration-rate,.lesson-actions .audio-state{grid-column:1/-1}.lesson-actions #preview-voice{grid-column:1/-1}.lesson-actions select{font-size:16px}.controls{display:grid;grid-template-columns:1fr}.controls input,.controls select,.controls button{width:100%;min-height:44px;font-size:16px}.metric-grid{grid-template-columns:1fr}.lesson-summary{font-size:1.05rem}.breadcrumbs{margin-bottom:18px}.lesson-page-content{min-height:260px}.verification-facts{grid-template-columns:1fr!important}.verification-facts span{border-right:0!important;border-bottom:1px solid var(--line)}.evidence-list li{grid-template-columns:26px minmax(0,1fr)}.evidence-list a{overflow-wrap:anywhere}}
@media(max-width:360px){:root{--shell:calc(100% - 20px)}.site-header{padding:0 8px}.brand span{display:none}.lesson-actions{grid-template-columns:1fr}.lesson-actions>*{grid-column:1!important}.lesson-title{font-size:2.35rem}.learn-page-nav a{padding:8px 10px}.button{padding-inline:12px}}
/* Prevent long-page flash before JavaScript applies the selected library page. */
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body[data-library-page="browse"] #verification-standard,body[data-library-page="browse"] #continue-learning,body[data-library-page="browse"] #domains,body[data-library-page="browse"] #practice,body[data-library-page="browse"] #labs,body[data-library-page="browse"] #paths,body[data-library-page="browse"] #connections,body[data-library-page="browse"] #glossary,body[data-library-page="browse"] #evidence-guide{display:none}
body[data-library-page="paths"] #verification-standard,body[data-library-page="paths"] #continue-learning,body[data-library-page="paths"] #domains,body[data-library-page="paths"] #curriculum,body[data-library-page="paths"] #discover,body[data-library-page="paths"] #practice,body[data-library-page="paths"] #labs,body[data-library-page="paths"] #connections,body[data-library-page="paths"] #atlas,body[data-library-page="paths"] #glossary,body[data-library-page="paths"] #evidence-guide{display:none}
body[data-library-page="practice"] #verification-standard,body[data-library-page="practice"] #continue-learning,body[data-library-page="practice"] #domains,body[data-library-page="practice"] #curriculum,body[data-library-page="practice"] #discover,body[data-library-page="practice"] #labs,body[data-library-page="practice"] #paths,body[data-library-page="practice"] #connections,body[data-library-page="practice"] #atlas,body[data-library-page="practice"] #glossary,body[data-library-page="practice"] #evidence-guide{display:none}
body[data-library-page="labs"] #verification-standard,body[data-library-page="labs"] #continue-learning,body[data-library-page="labs"] #domains,body[data-library-page="labs"] #curriculum,body[data-library-page="labs"] #discover,body[data-library-page="labs"] #practice,body[data-library-page="labs"] #paths,body[data-library-page="labs"] #connections,body[data-library-page="labs"] #atlas,body[data-library-page="labs"] #glossary,body[data-library-page="labs"] #evidence-guide{display:none}
body[data-library-page="glossary"] #verification-standard,body[data-library-page="glossary"] #continue-learning,body[data-library-page="glossary"] #domains,body[data-library-page="glossary"] #curriculum,body[data-library-page="glossary"] #discover,body[data-library-page="glossary"] #practice,body[data-library-page="glossary"] #labs,body[data-library-page="glossary"] #paths,body[data-library-page="glossary"] #connections,body[data-library-page="glossary"] #atlas,body[data-library-page="glossary"] #evidence-guide{display:none}
body[data-library-page="map"] #verification-standard,body[data-library-page="map"] #continue-learning,body[data-library-page="map"] #domains,body[data-library-page="map"] #curriculum,body[data-library-page="map"] #discover,body[data-library-page="map"] #practice,body[data-library-page="map"] #labs,body[data-library-page="map"] #paths,body[data-library-page="map"] #atlas,body[data-library-page="map"] #glossary,body[data-library-page="map"] #evidence-guide{display:none}
body[data-library-page="verify"] #continue-learning,body[data-library-page="verify"] #domains,body[data-library-page="verify"] #curriculum,body[data-library-page="verify"] #discover,body[data-library-page="verify"] #practice,body[data-library-page="verify"] #labs,body[data-library-page="verify"] #paths,body[data-library-page="verify"] #connections,body[data-library-page="verify"] #atlas,body[data-library-page="verify"] #glossary{display:none}
body[data-library-page]:not([data-library-page="home"]) #library-view>.hero,body[data-library-page]:not([data-library-page="home"]) .stat-band{display:none}


/* v0.6.0 — lab studio + retrieval sprint */
.lab-toolbar{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap}.lab-filter-tools{display:flex;align-items:end;gap:8px;flex-wrap:wrap}.lab-filter-tools label{display:grid;gap:4px;color:var(--muted);font-size:.68rem;text-transform:uppercase;letter-spacing:.08em}.lab-filter-tools select{background:var(--panel);color:var(--text);border:1px solid var(--line2);border-radius:8px;padding:9px 30px 9px 10px;min-height:42px}.sprint-card{grid-column:span 1}.sprint-finish{display:grid;gap:10px;padding:16px 0}.sprint-finish strong{font-family:var(--serif);font-size:2.5rem;font-weight:400}.switch-stage,.join-result{display:grid;gap:15px}.switch-hosts{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.switch-hosts button,.scheduler-nodes>div{border:1px solid var(--line2);background:var(--panel);color:var(--text);border-radius:10px;padding:13px;text-align:left}.switch-hosts small,.scheduler-nodes span{display:block;color:var(--muted);margin-top:4px}.switch-core{border:1px solid var(--accent);background:var(--accent-soft);padding:16px;text-align:center;border-radius:10px;font-weight:700}.switch-table{border:1px solid var(--line);padding:14px;border-radius:10px}.switch-table [data-fdb]{display:grid;gap:6px;margin-top:8px}.switch-table [data-fdb] span{display:flex;justify-content:space-between;gap:12px;border-top:1px solid var(--line);padding-top:6px}.scheduler-nodes{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}.scheduler-nodes>div.feasible{border-color:var(--good)}.scheduler-nodes>div.chosen{background:var(--accent-soft);border-color:var(--accent)}.quorum-stage{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;padding:26px 0}.quorum-stage span{display:grid;place-items:center;width:48px;height:48px;border:1px solid var(--line2);border-radius:50%;font-size:1.3rem}.quorum-stage .up{border-color:var(--good)}.quorum-stage .down{opacity:.45}.good{color:var(--good)!important}.bad{color:#d66!important}.join-inputs{display:grid;grid-template-columns:1fr 1fr;gap:12px}.join-inputs>div,.join-result{border:1px solid var(--line);border-radius:10px;padding:14px}.join-inputs span,.join-result span{display:grid;grid-template-columns:45px 1fr;gap:8px;padding:6px 0;border-top:1px solid var(--line)}.join-result span{grid-template-columns:38px 1fr}.risk-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:5px;max-width:520px;margin:0 auto 18px}.risk-grid span{aspect-ratio:1;display:grid;place-items:center;border:1px solid var(--line);border-radius:7px;font-size:.76rem;color:var(--muted)}.risk-grid span.selected{background:var(--accent-soft);border-color:var(--accent);color:var(--text);font-weight:700}.series-diagram{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;margin:14px 0 22px}.series-diagram span,.series-diagram i{border:1px solid var(--line2);padding:12px 16px;border-radius:8px;font-style:normal}.series-diagram i:before{content:'— '}.series-diagram i:after{content:' —'}
@media(max-width:760px){.lab-filter-tools{width:100%;display:grid;grid-template-columns:1fr 1fr}.lab-filter-tools .button,.lab-filter-tools .text-button{min-height:44px}.switch-hosts,.scheduler-nodes{grid-template-columns:1fr}.join-inputs{grid-template-columns:1fr}.risk-grid{max-width:100%}}
@media(max-width:480px){.lab-filter-tools{grid-template-columns:1fr}.lab-filter-tools select{font-size:16px;width:100%}.risk-grid span{font-size:.65rem}.quorum-stage span{width:42px;height:42px}}


/* v0.7.0 — proof ledger + additional verified interactive labs */
.claim-ledger{margin:22px 0;border:1px solid var(--line);border-radius:12px;padding:16px;background:var(--panel)}.claim-ledger ol{list-style:none;margin:10px 0;padding:0;display:grid;gap:8px}.claim-ledger li{display:grid;grid-template-columns:28px minmax(0,1fr);gap:8px;align-items:start;border-top:1px solid var(--line);padding-top:10px}.claim-ledger li>span{display:grid;place-items:center;width:22px;height:22px;border:1px solid var(--good);border-radius:50%;color:var(--good);font-size:.72rem}.claim-ledger li p{margin:3px 0 0}.claim-ledger>small{color:var(--muted)}
.ttl-track{height:56px;border:1px solid var(--line2);border-radius:10px;position:relative;overflow:hidden;margin-bottom:16px;display:grid;place-items:center}.ttl-fill{position:absolute;inset:0 auto 0 0;background:var(--accent-soft);border-right:2px solid var(--accent);transition:width .2s}.ttl-track>span{position:relative;font-weight:800;letter-spacing:.12em}.nat-diagram,.page-map{display:flex;align-items:center;justify-content:space-around;gap:12px;flex-wrap:wrap;padding:18px;border:1px solid var(--line);border-radius:10px}.nat-diagram>div,.page-map>div{display:grid;gap:5px;text-align:center}.nat-table{margin-top:15px;border:1px solid var(--line);border-radius:10px;padding:14px}.nat-table [data-nat-rows]{display:grid;margin-top:8px}.nat-table [data-nat-rows] span{display:grid;grid-template-columns:minmax(0,1fr) 24px minmax(0,1fr) minmax(100px,1fr);gap:8px;padding:8px 0;border-top:1px solid var(--line);align-items:center}.nat-table small{color:var(--muted)}
.firewall-rules{display:grid;gap:6px}.firewall-rules>div{display:grid;grid-template-columns:50px 70px 70px minmax(120px,1fr) 70px;gap:8px;padding:9px;border:1px solid var(--line);border-radius:8px;align-items:center}.firewall-rules>div.active{border-color:var(--accent);background:var(--accent-soft)}.rollout-pods,.hpa-scale>div{display:flex;flex-wrap:wrap;gap:7px;min-height:85px;align-content:center}.rollout-pods span,.hpa-scale span{border:1px solid var(--line2);border-radius:999px;padding:8px 12px;font-size:.74rem}.rollout-pods .new,.hpa-scale .new{border-color:var(--accent);background:var(--accent-soft)}.rollout-pods .old{opacity:.65}.page-map code{font-size:1.05rem}.rr-timeline{display:flex;align-items:end;gap:6px;flex-wrap:wrap;min-height:110px}.rr-timeline span{display:grid;place-items:center;min-width:50px;padding:12px;border:1px solid var(--line2);border-radius:8px}.rr-timeline small{color:var(--muted)}.branch-stage{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:8px;align-items:center;text-align:center}.branch-stage>div:not(:nth-child(even)){border:1px solid var(--line);border-radius:10px;padding:18px}.branch-stage span{display:block;color:var(--muted);font-size:.7rem;text-transform:uppercase}.branch-stage strong{font-family:var(--serif);font-size:1.8rem}.reduction-tree{display:grid;gap:10px}.reduction-tree>div{display:flex;align-items:center;justify-content:center;gap:6px;flex-wrap:wrap}.reduction-tree b{width:70px;color:var(--muted);font-size:.7rem}.reduction-tree span{min-width:42px;border:1px solid var(--line2);border-radius:7px;padding:8px;text-align:center}.bell-circuit{display:grid;gap:10px;font-family:monospace;font-size:1.15rem;padding:18px;border:1px solid var(--line);border-radius:10px}.bell-circuit>div{display:flex;gap:14px}.bell-bars{display:grid;gap:8px;margin-top:14px}.bell-bars span{position:relative;height:30px;border:1px solid var(--line);border-radius:7px;overflow:hidden}.bell-bars i{position:absolute;inset:0 auto 0 0;background:var(--accent-soft);border-right:1px solid var(--accent)}.bell-bars b{position:relative;display:grid;place-items:center;height:100%}
@media(max-width:700px){.nat-table [data-nat-rows] span{grid-template-columns:1fr}.firewall-rules>div{grid-template-columns:40px 55px 55px 1fr}.firewall-rules>div strong{grid-column:1/-1}.branch-stage{grid-template-columns:1fr}.branch-stage>div:nth-child(even){transform:rotate(90deg)}}
@media(max-width:420px){.nat-diagram,.page-map{display:grid}.nat-table code{overflow-wrap:anywhere}.bell-circuit{font-size:.95rem;overflow-x:auto}}


/* v0.8.0 — mastery + interactive evidence labs */
.mastery-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.mastery-domain,.mastery-card{border:1px solid var(--line);background:var(--panel);border-radius:18px;padding:20px;min-width:0}.mastery-domain-head{display:flex;gap:14px;align-items:center}.mastery-domain-head>span{font-size:1.6rem}.mastery-domain h3,.mastery-card h3{margin:.25rem 0 .8rem}.mastery-bar{height:7px;background:var(--panel2);border-radius:999px;overflow:hidden;margin:16px 0}.mastery-bar i{display:block;height:100%;background:var(--accent);border-radius:inherit}.mastery-metrics{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:16px}.mastery-metrics span{font-size:.8rem;color:var(--muted)}.mastery-metrics strong{display:block;color:var(--text);font-size:1rem}.mastery-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:20px}.mastery-list{display:grid;gap:8px}.mastery-list button{width:100%;display:flex;justify-content:space-between;gap:14px;align-items:center;text-align:left;border:1px solid var(--line);border-radius:12px;background:var(--panel2);color:var(--text);padding:12px 14px;cursor:pointer}.mastery-list button:hover,.mastery-list button:focus-visible{border-color:var(--accent)}.evidence-lab .lab-checks{display:grid;gap:10px;margin:18px 0}.evidence-lab .lab-checks label{display:flex;gap:10px;align-items:flex-start;padding:10px 12px;border:1px solid var(--line);border-radius:12px;background:var(--panel2)}.evidence-lab input[type=checkbox]{width:20px;height:20px;flex:0 0 auto}.lab-notes{display:grid;gap:8px;color:var(--muted);font-size:.85rem;margin:18px 0}.lab-notes textarea{width:100%;resize:vertical;min-height:100px;border:1px solid var(--line);border-radius:12px;background:var(--bg);color:var(--text);padding:12px;font:inherit}.evidence-reveal{margin-top:16px;border:1px solid var(--line);border-radius:12px;padding:12px 14px;background:var(--panel2)}.evidence-reveal summary{cursor:pointer;color:var(--accent);font-weight:700}.evidence-reveal[open] summary{margin-bottom:12px}
@media(max-width:980px){.mastery-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:680px){.mastery-grid,.mastery-actions{grid-template-columns:1fr}.mastery-domain,.mastery-card{padding:16px}.mastery-metrics{justify-content:space-between}.lab-notes textarea{font-size:16px}}

/* v1.0 evidence-first generic interactive studios */
.workflow-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}.workflow-grid article,.teachback label{min-width:0;border:1px solid var(--line2);border-radius:14px;padding:1rem;background:color-mix(in srgb,var(--panel) 88%,transparent)}.workflow-grid article>span{display:inline-grid;place-items:center;width:2rem;height:2rem;border-radius:999px;border:1px solid var(--line2);font-weight:700}.workflow-grid h4{margin:.6rem 0}.workflow-grid textarea,.teachback textarea,.fault-tree textarea,.concept-slots input{width:100%;box-sizing:border-box;min-height:44px}.workflow-claim{margin-top:.75rem;padding:.85rem;border-left:3px solid var(--accent);background:var(--panel2);overflow-wrap:anywhere}.fault-tree{text-align:center}.fault-root{display:inline-block;padding:.85rem 1.2rem;border:1px solid var(--line2);border-radius:12px}.fault-branches{display:flex;gap:.75rem;justify-content:center;flex-wrap:wrap;margin:1rem 0}.fault-branches button,.decision-grid button{min-height:44px}.fault-branches .selected{outline:2px solid var(--accent);outline-offset:2px}.sequence-strip{display:flex;gap:.6rem;flex-wrap:wrap;align-items:center}.sequence-strip span{display:flex;gap:.5rem;align-items:center;padding:.65rem .8rem;border:1px solid var(--line2);border-radius:999px}.decision-grid{display:grid;grid-template-columns:minmax(9rem,1.3fr) repeat(2,minmax(5rem,1fr));gap:.45rem;align-items:stretch}.decision-grid>*{padding:.7rem;border:1px solid var(--line2);border-radius:8px;min-width:0}.concept-map{display:grid;gap:1rem}.concept-center{justify-self:center;padding:1rem 1.25rem;border:2px solid var(--accent);border-radius:999px;text-align:center}.concept-slots{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.75rem}.teachback{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}.teachback label{display:grid;gap:.6rem}.check-builder{display:grid;gap:.5rem}.check-builder label{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:.6rem;padding:.65rem .75rem;border:1px solid var(--line2);border-radius:10px}.check-builder button{min-width:2.5rem;min-height:2.5rem}
@media(max-width:720px){.workflow-grid,.teachback,.concept-slots{grid-template-columns:1fr}.decision-grid{grid-template-columns:minmax(7.5rem,1.2fr) repeat(2,minmax(4.5rem,1fr));font-size:.88rem}.workflow-grid textarea,.teachback textarea,.fault-tree textarea{font-size:16px}.fault-branches{display:grid;grid-template-columns:1fr}.sequence-strip{align-items:stretch}.sequence-strip span{border-radius:10px}}

/* v1.1.0 — deep learning edition: multi-audience lessons, concept visuals, video companions, review studio */
.deep-pill{border-color:color-mix(in srgb,var(--accent) 62%,var(--line));color:var(--accent)}
.learning-mode-bar{display:flex;justify-content:space-between;gap:22px;align-items:center;border:1px solid var(--line2);border-radius:16px;padding:17px 18px;background:linear-gradient(135deg,var(--panel),var(--panel2));margin-bottom:28px}.learning-mode-bar>div{min-width:0}.learning-mode-bar strong{display:block;font-family:var(--serif);font-size:1.35rem;font-weight:400}.learning-mode-bar small{display:block;color:var(--muted)}.learning-mode-bar label{display:grid;gap:6px;color:var(--muted);font-size:.74rem;flex:0 0 min(290px,42%)}.learning-mode-bar select{min-height:44px;width:100%;border:1px solid var(--line2);border-radius:9px;background:var(--bg);color:var(--text);padding:8px 10px}
.essential-question{display:grid;grid-template-columns:46px minmax(0,1fr);gap:15px;align-items:start;border:1px solid var(--line);border-radius:15px;background:var(--panel);padding:20px}.essential-question>span{width:42px;height:42px;display:grid;place-items:center;border-radius:50%;border:1px solid var(--accent);color:var(--accent);font-family:var(--serif);font-size:1.45rem}.essential-question p{margin:2px 0;font-size:1.04rem}
.lesson-route{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--line);border-left:1px solid var(--line)}.lesson-route article{min-width:0;padding:18px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--panel)}.lesson-route article>span{display:block;color:var(--accent);font-size:.7rem;letter-spacing:.12em}.lesson-route strong{display:block;margin:8px 0 5px}.lesson-route p{font-size:.82rem!important;margin:0;color:var(--muted)!important}
.starter-card,.analogy-card,.technical-scope,.teach-prompt,.claim-focus{border:1px solid var(--line);border-radius:14px;background:var(--panel);padding:19px}.starter-card{border-color:color-mix(in srgb,var(--good) 40%,var(--line))}.analogy-card strong{display:block;color:var(--accent);font-size:.75rem;letter-spacing:.08em;text-transform:uppercase}.analogy-card p,.starter-card p,.technical-scope p,.teach-prompt p{margin:.45rem 0}.claim-focus{display:grid;grid-template-columns:34px minmax(0,1fr);gap:11px;align-items:start;border-color:color-mix(in srgb,var(--good) 50%,var(--line))}.claim-focus>span{display:grid;place-items:center;width:28px;height:28px;border:1px solid var(--good);border-radius:50%;color:var(--good)}.claim-focus p{margin:0}.technical-scope{display:grid;gap:10px}.technical-scope p{padding-bottom:10px;border-bottom:1px solid var(--line)}.technical-scope p:last-child{border-bottom:0;padding-bottom:0}
.vocab-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.vocab-grid details,.vocab-empty{min-width:0;border:1px solid var(--line);border-radius:12px;background:var(--panel);padding:12px 14px}.vocab-grid summary{cursor:pointer;color:var(--accent);font-weight:700}.vocab-grid p,.vocab-empty p{margin:.55rem 0 0;font-size:.85rem!important}.reasoning-steps{list-style:none!important;padding:0!important;margin:0;display:grid;gap:9px}.reasoning-steps li{display:grid;grid-template-columns:36px minmax(0,1fr);gap:12px;align-items:start;border:1px solid var(--line);border-radius:12px;background:var(--panel);padding:12px 14px}.reasoning-steps li>span{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--accent-soft);color:var(--accent);font-weight:800}.reasoning-steps p{margin:0!important;font-size:.9rem!important}.connection-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.connection-columns article{min-width:0;border:1px solid var(--line);border-radius:13px;padding:15px;background:var(--panel)}.connection-columns button{display:block;text-align:left;margin:.35rem 0}.connection-columns p{font-size:.85rem!important}
.concept-visual-wrap{display:grid;gap:14px}.concept-visual{position:relative;min-height:520px;border:1px solid var(--line2);border-radius:20px;background:radial-gradient(circle at 50% 50%,var(--accent-soft),transparent 38%),var(--panel);overflow:hidden}.concept-visual svg{position:absolute;inset:7%;width:86%;height:86%;overflow:visible}.concept-visual line{stroke:var(--line2);stroke-width:.45;vector-effect:non-scaling-stroke}.concept-center-node{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:min(240px,34%);min-height:120px;display:grid;place-items:center;align-content:center;text-align:center;border:2px solid var(--accent);border-radius:50%;background:var(--bg);padding:18px;z-index:2}.concept-center-node span{font-size:.62rem;letter-spacing:.14em;color:var(--accent)}.concept-center-node strong{font-family:var(--serif);font-weight:400;font-size:1.1rem;line-height:1.1}.concept-node{position:absolute;left:var(--vx);top:var(--vy);transform:translate(-50%,-50%);width:170px;min-height:84px;border:1px solid var(--line2);border-radius:13px;background:var(--panel2);color:var(--text);padding:10px 12px;cursor:pointer;text-align:left;z-index:3}.concept-node:hover,.concept-node:focus-visible,.concept-node.selected{border-color:var(--accent);outline:none;box-shadow:0 0 0 3px var(--accent-soft)}.concept-node span{display:block;color:var(--accent);font-size:.64rem;text-transform:uppercase;letter-spacing:.08em}.concept-node strong{display:block;margin-top:4px;font-size:.76rem;line-height:1.25}.visual-detail{border:1px solid var(--line);border-radius:14px;background:var(--panel);padding:18px}.visual-detail h3{font-family:var(--serif);font-size:1.55rem;font-weight:400;margin:4px 0}.visual-detail p{margin:0!important}
.video-companion{display:grid;gap:18px}.video-policy{display:grid;grid-template-columns:42px minmax(0,1fr);gap:12px;align-items:start;border:1px solid color-mix(in srgb,var(--accent) 45%,var(--line));background:var(--accent-soft);border-radius:14px;padding:15px}.video-policy>span{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--accent);color:#161412}.video-policy p{margin:3px 0!important;font-size:.84rem!important}.responsive-video{position:relative;width:100%;aspect-ratio:16/9;border:1px solid var(--line2);border-radius:16px;overflow:hidden;background:#000}.responsive-video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.video-meta{border-left:2px solid var(--accent);padding-left:16px}.video-meta h3{font-family:var(--serif);font-size:1.65rem;font-weight:400;margin:4px 0}.video-meta p{margin:4px 0!important}.video-actions{display:flex;gap:9px;flex-wrap:wrap}.video-curator{border:1px solid var(--line);border-radius:13px;background:var(--panel);padding:13px 15px}.video-curator summary{cursor:pointer;color:var(--accent);font-weight:700}.video-pin-row{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:8px;margin-top:12px}.video-pin-row input{min-width:0;min-height:44px;background:var(--bg);color:var(--text);border:1px solid var(--line2);border-radius:9px;padding:9px 11px}.form-status{min-height:1.4em;color:var(--muted)!important;margin:.5rem 0 0!important}.young-video-note{border:1px solid var(--line);border-radius:12px;padding:13px 15px}.young-video-note p{margin:.3rem 0!important;font-size:.82rem!important}.video-missing{border:1px dashed var(--line2);border-radius:14px;padding:20px;background:var(--panel)}
.watch-prompts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.watch-prompts article{border:1px solid var(--line);border-radius:13px;padding:15px;background:var(--panel)}.watch-prompts strong{color:var(--accent)}.watch-prompts p{font-size:.84rem!important;margin:.35rem 0 0!important}.lab-blueprint{display:grid;grid-template-columns:minmax(220px,.8fr) minmax(0,1.2fr);gap:22px;border:1px solid var(--line);border-radius:16px;background:var(--panel);padding:20px}.lab-blueprint h3{font-family:var(--serif);font-size:1.55rem;font-weight:400;margin:.35rem 0}.lab-blueprint ol{list-style:none;padding:0;margin:0;display:grid;gap:7px}.lab-blueprint li{display:grid;grid-template-columns:30px minmax(0,1fr);gap:9px;align-items:start}.lab-blueprint li>span{width:26px;height:26px;display:grid;place-items:center;border-radius:50%;background:var(--accent-soft);color:var(--accent);font-weight:700}.lab-blueprint li p{margin:0!important;font-size:.84rem!important}
.memory-ladder{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.memory-ladder article{display:grid;grid-template-columns:36px minmax(0,1fr);gap:11px;border:1px solid var(--line);border-radius:12px;background:var(--panel);padding:13px}.memory-ladder article>span{width:31px;height:31px;border-radius:50%;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent);font-weight:800}.memory-ladder strong{font-size:.76rem;color:var(--accent);text-transform:uppercase;letter-spacing:.06em}.memory-ladder p{font-size:.84rem!important;margin:.25rem 0 0!important}.teachback-studio{display:grid;gap:14px;border:1px solid var(--line);border-radius:16px;background:var(--panel);padding:19px}.teachback-studio h3{font-family:var(--serif);font-weight:400;font-size:1.45rem;margin:.35rem 0}.teachback-studio label{display:grid;gap:7px;color:var(--muted);font-size:.82rem}.teachback-studio textarea{width:100%;min-height:130px;resize:vertical;background:var(--bg);border:1px solid var(--line2);border-radius:10px;color:var(--text);padding:11px;font:inherit}.teachback-actions{display:flex;gap:8px;flex-wrap:wrap}.teachback-rubric{display:grid;gap:8px;border-top:1px solid var(--line);padding-top:13px}.teachback-rubric>label{display:flex;gap:9px;align-items:flex-start;border:1px solid var(--line);border-radius:9px;padding:9px}.teachback-rubric input{width:20px;height:20px;flex:0 0 auto}.review-planner{border:1px solid var(--line);border-radius:15px;padding:18px;background:var(--panel)}.review-planner>label{display:grid;grid-template-columns:minmax(190px,1fr) minmax(140px,2fr) auto;gap:12px;align-items:center}.review-planner input[type=range]{accent-color:var(--accent);width:100%}.review-planner output{color:var(--accent);font-weight:700}.review-buttons{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}.review-due{font-size:.82rem!important;color:var(--muted)!important}
@media(max-width:900px){.lesson-route{grid-template-columns:repeat(2,minmax(0,1fr))}.concept-visual{min-height:640px}.concept-center-node{width:220px}.concept-node{width:155px}.watch-prompts{grid-template-columns:1fr}.lab-blueprint{grid-template-columns:1fr}.video-pin-row{grid-template-columns:1fr}.video-pin-row .button{width:100%}.learning-mode-bar{align-items:flex-start}.memory-ladder{grid-template-columns:1fr}}
@media(max-width:720px){.learning-mode-bar{display:grid}.learning-mode-bar label{width:100%;max-width:none}.lesson-page-tabs{gap:7px;padding:8px 0}.lesson-page-tabs button{padding:9px 13px}.vocab-grid,.connection-columns{grid-template-columns:1fr}.concept-visual{min-height:0;display:grid;grid-template-columns:1fr;gap:8px;padding:12px;background:var(--panel)}.concept-visual svg{display:none}.concept-center-node,.concept-node{position:static;transform:none;width:100%;min-height:0;border-radius:11px}.concept-center-node{order:-1;min-height:92px}.concept-node{text-align:left}.review-planner>label{grid-template-columns:1fr}.responsive-video{border-radius:11px}}
@media(max-width:520px){.lesson-route{grid-template-columns:1fr}.essential-question{grid-template-columns:38px minmax(0,1fr);padding:15px}.essential-question>span{width:34px;height:34px}.video-actions,.teachback-actions,.review-buttons{display:grid;grid-template-columns:1fr}.video-actions .button,.teachback-actions .button,.review-buttons .button{width:100%;min-height:44px}.memory-ladder article{grid-template-columns:32px minmax(0,1fr)}.lesson-page-tabs{margin-inline:-2px;scroll-padding-inline:8px}.lesson-page-tabs button{font-size:.83rem}.teachback-studio textarea,.video-pin-row input,.learning-mode-bar select{font-size:16px}}
@media(max-width:720px){.lesson-page-tabs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));overflow:visible;gap:6px;padding:8px 0}.lesson-page-tabs button{min-width:0;width:100%;padding:8px 5px;font-size:.76rem;white-space:nowrap}}
@media(max-width:360px){.lesson-page-tabs button{font-size:.7rem;padding-inline:3px}}
.provenance-box{margin:18px 0;border:1px solid color-mix(in srgb,var(--accent) 45%,var(--line));border-radius:13px;background:var(--accent-soft);padding:16px}.provenance-box h3{font-family:var(--serif);font-weight:400;margin:.3rem 0}.source-reading-guide{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin:10px 0 20px}.source-reading-guide article{display:grid;grid-template-columns:32px minmax(0,1fr);gap:8px;border:1px solid var(--line);background:var(--panel);border-radius:11px;padding:12px}.source-reading-guide article>span{grid-row:1/3;width:27px;height:27px;display:grid;place-items:center;border-radius:50%;background:var(--accent-soft);color:var(--accent);font-weight:800}.source-reading-guide p{font-size:.8rem!important;margin:.2rem 0 0!important}
@media(max-width:620px){.source-reading-guide{grid-template-columns:1fr}}


/* Dedicated experience pages: catalog tiles launch full-screen labs in their own tab. */
.lab-tile-link{display:block;color:inherit;text-decoration:none;cursor:pointer;transition:transform .16s,border-color .16s,box-shadow .16s}
.lab-tile-link:hover,.lab-tile-link:focus-visible{transform:translateY(-2px);border-color:var(--accent);box-shadow:0 18px 45px rgba(0,0,0,.18);outline:none}
.lab-tile-link .text-button{pointer-events:none}
.lesson-card.standalone-tile{cursor:pointer}
.lesson-card.standalone-tile:hover,.lesson-card.standalone-tile:focus-visible{border-color:var(--accent);outline:2px solid color-mix(in srgb,var(--accent) 50%,transparent);outline-offset:2px}
body.standalone-experience{}
body.standalone-experience>.site-header,body.standalone-experience>footer.site-footer,body.standalone-experience>.ambient{display:none!important}
body.standalone-experience main{min-height:100dvh}
body.standalone-experience #lesson-view{display:block!important;min-height:100dvh;padding-top:0}
body.standalone-experience .lesson-shell{width:min(1500px,calc(100% - 28px));max-width:none;padding-top:12px}
body.standalone-experience .lesson-topbar{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 94%,transparent);backdrop-filter:blur(14px);padding-block:10px}
.standalone-experience-nav{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);gap:10px;align-items:stretch;margin:0 0 24px;padding:10px 0 16px;border-bottom:1px solid var(--line)}
.standalone-experience-nav a{display:flex;align-items:center;min-height:48px;padding:9px 12px;border:1px solid var(--line);border-radius:9px;color:var(--accent);text-decoration:none;font-size:.84rem;line-height:1.3}
.standalone-experience-nav a:last-child{justify-content:flex-end;text-align:right}
.standalone-experience-nav .all-experiences{justify-content:center;text-align:center;font-weight:800;border-color:var(--accent)}
.standalone-experience-nav a:hover,.standalone-experience-nav a:focus-visible{border-color:var(--accent);text-decoration:underline;outline:none}
@media(max-width:700px){.standalone-experience-nav{grid-template-columns:1fr}.standalone-experience-nav a,.standalone-experience-nav a:last-child{justify-content:center;text-align:center}.standalone-experience-nav .all-experiences{order:-1}body.standalone-experience .lesson-shell{width:min(100% - 18px,1500px)}}

/* Keep the same top-banner menu on every learning page and screen size. */
.site-header .menu-button{display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px}

.glossary-card,.glossary-term>*{min-width:0;overflow-wrap:anywhere}
.glossary-term{flex-wrap:wrap}
.glossary-search{grid-template-columns:auto minmax(0,1fr) auto}


/* September 23 Connected Systems solar integration */
.knowledge-solar-slot{min-width:0;width:100%;align-self:center}
.knowledge-solar-slot .vnext-cosmos{width:100%;max-width:none;border-radius:14px;align-self:center;box-shadow:0 20px 65px #0004}
.knowledge-solar-slot .vnext-cosmos-scene{}
.knowledge-solar-slot .vnext-cosmos .vnext-system-tabs{grid-template-columns:repeat(5,minmax(0,1fr));padding:10px;gap:5px;border-right:0}
.knowledge-solar-slot .vnext-cosmos .vnext-system-tabs button{font-size:.69rem;padding:9px 3px;min-height:42px;border-radius:5px;gap:4px;text-align:center}
.knowledge-solar-slot .vnext-cosmos .vnext-system-tabs button:last-child{grid-column:auto}
.knowledge-solar-slot .vnext-cosmos .vnext-system-tabs button span:not(.vnext-tab-dot){font-size:inherit;flex:0 1 auto}
.knowledge-solar-slot .vnext-cosmos .vnext-tab-dot{display:none}
.knowledge-solar-slot .vnext-cosmos .vnext-sys-top{font-size:.59rem;padding:14px 16px}
.knowledge-solar-slot .vnext-cosmos .vnext-sys-detail{padding:19px 22px;min-height:174px}
.knowledge-solar-slot .vnext-detail-grid{display:block}
.knowledge-solar-slot .vnext-detail-grid>div:last-child ul{display:none}
.knowledge-solar-slot .vnext-cosmos .vnext-sys-detail h2{font-size:1.2rem;line-height:1.24;letter-spacing:-.03em;max-width:38ch;margin-top:8px}
.knowledge-solar-slot .vnext-cosmos .vnext-sys-detail p{font-size:.78rem;line-height:1.65}
.knowledge-solar-slot .vnext-cosmos .vnext-cta{font-size:.75rem;min-height:36px;padding-block:5px}
.knowledge-solar-slot .vnext-sys-meta{font-size:.56rem;letter-spacing:.13em}
.knowledge-solar-slot .vnext-world{}
.knowledge-solar-slot .vnext-world strong,.knowledge-solar-slot .vnext-world small{}
.knowledge-solar-slot .vnext-cosmos-hint{font-size:.45rem;letter-spacing:.1em}
.knowledge-solar-slot .vnext-cosmos-core{}
.knowledge-solar-slot .vnext-cosmos-core span{}
.knowledge-solar-slot .vnext-cosmos-core small{}
body[data-library-page="home"] .hero:has(.knowledge-solar-slot){grid-template-columns:minmax(0,.92fr) minmax(0,1.12fr);gap:60px}
@media(max-width:1180px){
  body[data-library-page="home"] .hero:has(.knowledge-solar-slot){grid-template-columns:1fr;gap:35px}
  .knowledge-solar-slot{max-width:820px;margin-inline:auto}
}
@media(max-width:600px){
  .knowledge-solar-slot .vnext-cosmos-scene{}
  .knowledge-solar-slot .vnext-cosmos .vnext-sys-top{font-size:.5rem;letter-spacing:.06em;padding:12px}
  .knowledge-solar-slot .vnext-cosmos .vnext-system-tabs{grid-template-columns:repeat(5,minmax(0,1fr));padding:8px;gap:4px}
  .knowledge-solar-slot .vnext-cosmos .vnext-system-tabs button{font-size:.58rem;padding:8px 2px}
  .knowledge-solar-slot .vnext-cosmos .vnext-system-tabs button:last-child{grid-column:auto}
  .knowledge-solar-slot .vnext-cosmos .vnext-sys-detail{padding:16px;min-height:0}
  .knowledge-solar-slot .vnext-cosmos .vnext-sys-detail h2{font-size:1.09rem}
  .knowledge-solar-slot .vnext-cosmos .vnext-sys-detail p{font-size:.74rem}
}

/* Unified portfolio monogram sizing */
@media(max-width:820px){.site-header .brand strong{font-size:1.65rem}.site-header .brand{gap:10px}}


/* 2026-09-24 learning landing alignment pass. */
body[data-library-page="home"] .hero{gap:48px}
body[data-library-page="home"] .learn-page-nav{margin-top:18px}
body[data-library-page="home"] .domain-grid{align-items:stretch}
body[data-library-page="home"] .domain-card{min-height:280px}
@media(max-width:820px){
  body[data-library-page="home"] .hero{gap:28px;padding-bottom:34px}
  body[data-library-page="home"] .stats{align-items:stretch}
  body[data-library-page="home"] .stats>div{min-height:118px}
}


/* 2026-09-24 learning navigation cleanup. */
body[data-library-page] .learn-page-nav{
  border-bottom:0!important;
  gap:8px;
  padding:14px 0 20px;
  scroll-padding-inline:14px
}
body[data-library-page] .learn-page-nav a{
  border:1px solid color-mix(in srgb,var(--line) 78%,transparent);
  border-radius:12px;
  background:color-mix(in srgb,var(--panel) 34%,transparent);
  padding:9px 12px
}
body[data-library-page] .learn-page-nav a[aria-current="page"]{
  border-color:var(--accent);
  background:color-mix(in srgb,var(--accent-soft) 72%,transparent)
}
:root[data-theme=light] body[data-library-page] .learn-page-nav a{
  color:#10281d;
  background:rgba(244,249,242,.26);
  border-color:rgba(24,72,49,.24)
}
:root[data-theme=light] body[data-library-page] .learn-page-nav a[aria-current="page"]{
  color:#06150d;
  background:rgba(231,176,137,.38);
  border-color:#9c4b25
}


/* Knowledge home v4 — remove spreadsheet borders and keep cards orderly. */
body[data-library-page="home"] .principle-grid{
  border:0!important;gap:14px!important
}
body[data-library-page="home"] .principle-grid article{
  border:1px solid rgba(32,78,59,.23)!important;border-radius:18px!important;
  background:rgba(248,251,246,.15)!important;min-height:230px!important
}
html[data-theme="dark"] body[data-library-page="home"] .principle-grid article{
  border-color:rgba(176,214,222,.24)!important;background:rgba(7,13,16,.15)!important
}
body[data-library-page="home"] .stats{border:0!important;gap:14px!important}
body[data-library-page="home"] .stats>div{border-radius:18px!important}
body[data-library-page="home"] .domain-grid{border:0!important;gap:14px!important}
body[data-library-page="home"] .domain-card{border-radius:18px!important}
body[data-library-page="home"] .verification-strip,
body[data-library-page="home"] .resume-strip,
body[data-library-page="home"] .discover,
body[data-library-page="home"] .curriculum{background:transparent!important;border-block:0!important}
@media(max-width:820px){
  body[data-library-page="home"] .principle-grid{grid-template-columns:1fr!important}
  body[data-library-page="home"] .principle-grid article{min-height:0!important;padding:24px!important}
  body[data-library-page="home"] .principle-grid h3{margin-top:26px!important}
}


/* Readability scale v9 — keep the learning system legible on phones and tablets. */
html{font-size:17px}
body{font-size:1rem}