@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;650;700;750;800&display=swap');
:root{--bg:#edf3fb;--ink:#21364f;--muted:#74849b;--blue:#456dd0;--teal:#378d8b;--border:#d9e3ef;--white:#fff}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Manrope,Arial,sans-serif;font-size:14px}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;color:inherit;cursor:pointer}button:focus-visible,a:focus-visible{outline:3px solid #7e9ff0;outline-offset:4px}a{color:inherit;text-decoration:none}header{height:78px;display:flex;align-items:center;gap:30px;border-bottom:1px solid var(--border);padding:0 4vw;background:#f7faff}.brand{font-weight:800;letter-spacing:1.6px;font-size:14px;display:flex;align-items:center;gap:12px}.brand-symbol{font-size:34px;font-weight:400;color:#5275be}.header-note{font-size:12px;color:var(--muted)}.help{margin-left:auto;font-size:12px}main{max-width:1700px;margin:auto;padding:38px 4vw 0}.intro{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px}.eyebrow{font-size:10px;font-weight:800;letter-spacing:2px;color:#7891ae}h1{font-size:clamp(32px,3.5vw,52px);line-height:1.17;letter-spacing:-2px;margin:12px 0}h1 span{color:#5578b7}.intro p{color:var(--muted);margin:12px 0;font-size:14px}.intro-aside{font-size:12px}.intro-aside small{display:block;color:var(--muted);font-size:11px;margin-top:9px}.live-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:#64a89b;margin-right:8px}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:20px;align-items:start}.map-column{min-width:0;background:#f9fbfe;border:1px solid var(--border);border-radius:18px;overflow:hidden;box-shadow:0 15px 55px #41639207}.toolbar{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:16px;border-bottom:1px solid var(--border);background:#fff}.tabs{display:flex;gap:4px;flex-wrap:wrap}.tabs button,#lessons{background:transparent;border:0;border-radius:7px;padding:9px 11px;font-size:11px;color:#74849a;font-weight:700}.tabs button.active{background:#eaf0fb;color:#3d65ad}#lessons{border:1px solid var(--border);white-space:nowrap;color:#5777b1}#lessons[aria-pressed=false]{opacity:.45}.map-scroll{overflow:auto}.map{position:relative;width:1060px;height:960px;transform-origin:top left;background-image:radial-gradient(#d5dfed .8px,transparent .8px);background-size:18px 18px}.zone{position:absolute;top:23px;font-size:9px;font-weight:800;letter-spacing:1.5px;color:#94a4b8;width:280px;text-align:center}.z-left{left:40px}.z-center{left:390px}.z-right{left:740px}svg{position:absolute;inset:0;width:100%;height:100%;overflow:visible}.edge{stroke:#a1b4d9;stroke-width:1.7;fill:none;marker-end:url(#arrow);transition:opacity .3s,stroke .3s}.edge.teal{stroke:#8cbeb9}.edge.feedback{stroke:#b29dc4;stroke-dasharray:5 5}.edge.focus{stroke-width:3;stroke:#456dd0}.edge.dim{opacity:.12}.edge-label{font-size:9px;fill:#8595ab;font-family:Manrope,Arial,sans-serif;paint-order:stroke;stroke:#f9fbfe;stroke-width:5;stroke-linejoin:round}.cluster-bg{position:absolute;left:367px;top:715px;width:326px;height:213px;border:1px dashed #9cb4df;border-radius:15px;background:#e8f0fc66}.cluster-bg>span{display:block;font-size:8px;color:#7e95b8;letter-spacing:1.2px;text-align:center;padding-top:12px}.node{position:absolute;width:280px;height:154px;background:white;border:1px solid #d8e2ed;border-radius:12px;text-align:left;padding:15px 17px;box-shadow:0 4px 10px #334f7b04;transition:opacity .25s,border-color .25s,box-shadow .25s,transform .2s}.node:hover{transform:translateY(-3px);border-color:#8fafe5;box-shadow:0 8px 24px #24467512}.node.selected{border-color:#5f80c6;box-shadow:0 0 0 3px #c8d9f04d}.node.focus{box-shadow:0 0 0 4px #91b8f044;border-color:#547bc5}.node.dim{opacity:.3}.node-head{display:flex;align-items:center;gap:10px;margin-bottom:9px}.icon{display:flex;align-items:center;justify-content:center;width:29px;height:29px;background:#eff3fc;border-radius:8px;color:#6a87bb;font-size:18px}.node.teal .icon{background:#e9f5f2;color:#4d9690}.node.lilac .icon{background:#f2edf8;color:#9474ab}.node h3{font-size:13px;letter-spacing:-.2px;margin:0;font-weight:800}.node .seq{margin-left:auto;font-size:10px;color:#b1bfd0}.node p{margin:0 0 9px;font-size:10px;color:#78899d;line-height:1.5}.tools{display:flex;gap:4px;flex-wrap:wrap}.tool{padding:3px 6px;border:1px solid #e2e8f1;background:#f9fbfe;border-radius:4px;font-size:8px;color:#68809f}.lesson{position:absolute;bottom:12px;right:15px;font-size:8px;color:#6a85b3;background:#eef3fc;padding:3px 6px;border-radius:4px}.hide-lessons .lesson{display:none}.pods{display:flex;gap:5px;position:absolute;bottom:14px;left:17px}.pods i{width:16px;height:16px;border:1px solid #a2b8db;background:#edf3fd;border-radius:4px}.legend{display:flex;flex-wrap:wrap;gap:14px;padding:15px 18px;border-top:1px solid var(--border);font-size:9px;color:#8090a6}.legend>span{display:flex;align-items:center;gap:6px}.line{width:18px;height:0;border-top:2px solid #93add3}.line.teal{border-color:#85b8b3}.line.dashed{border-color:#af96c0;border-top-style:dashed}.legend-hint{width:100%;font-size:9px;opacity:.8}aside{background:#fff;border:1px solid var(--border);border-radius:16px;padding:25px;position:sticky;top:20px;min-height:490px}.panel-kicker{font-size:9px;letter-spacing:1.6px;color:#8a9db7;font-weight:800}.panel-icon{font-size:30px;color:#6d8bbf;margin:22px 0 12px}aside h2{font-size:23px;line-height:1.3;letter-spacing:-.6px;margin:0 0 15px}aside p{font-size:12px;line-height:1.85;color:#73849b}.detail-section{border-top:1px solid #e8edf4;margin-top:20px;padding-top:16px}.detail-section h4{font-size:9px;letter-spacing:1.3px;color:#8194af;margin:0 0 12px}.detail-section dl{margin:0}.detail-section dt{font-size:11px;font-weight:800;margin:11px 0 4px}.detail-section dd{margin:0;font-size:11px;line-height:1.7;color:#8290a2}.course-note{background:#f0f5fd;border-radius:8px;padding:13px;margin-top:21px;font-size:11px;line-height:1.8;color:#5a77a4}.next-link{border:0;background:transparent;padding:18px 0 0;color:#5477b6;font-size:11px;text-align:left}.journey{padding:20px;background:#ecf2fc;border-top:1px solid #d9e3f1;display:flex;gap:20px;justify-content:space-between;align-items:center}.journey[hidden]{display:none}.journey small{display:block;font-size:9px;letter-spacing:1.5px;color:#7291ba;margin-bottom:8px}.journey strong{font-size:14px}.journey p{font-size:11px;color:#7589a6;line-height:1.7;margin-bottom:0}.step-controls{display:flex;gap:6px;flex-shrink:0}.step-controls button{background:white;border:1px solid #cfdcee;border-radius:7px;padding:10px;font-size:11px}.step-controls button:disabled{opacity:.4;cursor:default}.guide{padding:65px 0 40px}.guide h2{font-size:27px;letter-spacing:-.8px;margin:12px 0 30px}.concepts{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}.concepts article{border-top:1px solid #ccd9e9;padding-top:20px}.concepts article>span{font-size:11px;color:#91a5bf}.concepts h3{font-size:16px}.concepts p{font-size:12px;line-height:1.9;color:#76889f;max-width:360px}.footnote{font-size:11px;line-height:1.9;color:#8393a7;margin-top:35px;max-width:950px}footer{padding:24px 0;border-top:1px solid #d1deee;display:flex;justify-content:space-between;color:#8498b2;font-size:10px} @media(min-width:1450px){.workspace{grid-template-columns:minmax(0,1fr) 320px}}@media(max-width:1050px){.workspace{grid-template-columns:minmax(0,1fr) 265px}aside{padding:20px}.intro-aside{display:none}.header-note{display:none}}@media(max-width:760px){header{height:65px;padding:0 20px}.help{font-size:10px}main{padding:28px 16px 0}.intro{margin-bottom:20px}h1{letter-spacing:-1.2px;font-size:35px}.intro p{font-size:12px;line-height:1.7}.workspace{grid-template-columns:1fr;gap:15px}aside{position:static;min-height:0}.map-scroll{max-height:74vh}.toolbar{padding:10px;align-items:flex-start}.tabs button{font-size:10px;padding:8px}#lessons{font-size:10px;padding:8px}.map{width:1060px}.concepts{grid-template-columns:1fr;gap:15px}.guide{padding-top:45px}.guide h2{font-size:24px}.concepts p{max-width:none}.journey{align-items:flex-start}.journey .step-controls{flex-direction:column}footer{gap:10px;flex-wrap:wrap}.node p{font-size:11px}.tool{font-size:9px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
.node h3{font-size:15px}.node p{font-size:12px}.tool{font-size:10px}.lesson{font-size:10px}.edge-label{font-size:11px}.zone{font-size:10px}.node-head{gap:8px}.sample-dash{border-top:1px solid #e5edf7;margin-top:20px;padding-top:17px}.sample-dash h4{font-size:9px;letter-spacing:1px;color:#8296b1}.sample-dash>div{background:#f5f8fd;border:1px solid #e3eaf4;border-radius:8px;margin:10px 0;padding:12px}.sample-dash b{display:block;font-size:11px}.sample-dash span{font-size:9px;display:block;margin-top:7px;color:#8095ad}.sample-dash svg{display:block;position:static;height:40px;margin-top:9px}.sample-dash small{font-size:9px;color:#8b9bb0;line-height:1.7}.edge-label{stroke-width:6px}.zone{letter-spacing:1px}.map-scroll{position:relative}
header{height:94px}.brand{gap:15px;letter-spacing:0}.hse-emblem{width:48px;height:48px;object-fit:contain;flex-shrink:0}.course-identity{display:flex;flex-direction:column;gap:7px}.course-identity strong{font-size:15px;font-weight:800;letter-spacing:.2px}.course-identity small{font-size:11px;font-weight:500;line-height:1.5;color:#74849b}@media(max-width:760px){header{height:auto;min-height:92px;padding:16px 20px;gap:14px;flex-wrap:wrap}.brand{gap:12px;flex:1;min-width:250px}.hse-emblem{width:44px;height:44px}.course-identity strong{font-size:14px}.course-identity small{font-size:10px;max-width:270px}.help{margin-left:auto;white-space:nowrap}}
#node-deploy{display:flex;flex-direction:column;align-items:flex-start}#node-deploy .node-head{width:100%;flex-shrink:0;margin-bottom:7px}#node-deploy p{font-size:11px;line-height:1.4;margin-bottom:7px}#node-deploy .tools{flex-shrink:0}#node-deploy .pods{position:static;display:flex;align-items:center;gap:4px;margin-top:auto;flex-shrink:0;height:16px}#node-deploy .pods span{font-size:9px;color:#8196b4;margin-right:3px}#node-deploy .pods i{display:block;width:12px;height:12px;flex-shrink:0}
body.locked{overflow:hidden}body.locked #course-content{visibility:hidden}#password-gate{position:fixed;inset:0;z-index:1000;display:grid;place-items:center;padding:24px;background:#edf3fb;overflow:auto}#password-gate[hidden]{display:none}.gate-card{width:min(100%,420px);padding:38px;background:#fff;border:1px solid #d9e3ef;border-radius:18px;box-shadow:0 18px 65px #4163920c}.gate-card>img{display:block;object-fit:contain;margin-bottom:26px}.gate-card .eyebrow{font-size:9px;letter-spacing:1.5px}.gate-card h1{font-size:30px;letter-spacing:-1px;margin:15px 0 10px}.gate-card>p{font-size:11px;line-height:1.8;color:#8191a7;margin-bottom:28px}.gate-card label{display:block;font-size:11px;font-weight:700;margin-bottom:9px;color:#5c7391}.password-input{display:flex;border:1px solid #cedbec;border-radius:8px;background:#f9fbfe;overflow:hidden}.password-input:focus-within{border-color:#7294d1;box-shadow:0 0 0 3px #e6eefb}.password-input input{width:100%;min-width:0;padding:13px 12px;border:0;background:transparent;color:#21364f;font:inherit;outline:none}.password-input button{border:0;background:transparent;color:#7990ad;font-size:10px;padding:0 12px}.gate-submit{width:100%;border:0;background:#456ba9;color:white;border-radius:8px;padding:13px;font-size:12px;font-weight:700}.gate-submit:hover{background:#365c99}#gate-error{min-height:17px;margin:8px 0 12px;font-size:10px;color:#b25460;line-height:1.6}@media(max-width:480px){.gate-card{padding:28px}.gate-card h1{font-size:27px}}