:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#172033;background:#f4f7fb;font-synthesis:none;--panel: rgba(255, 255, 255, .96);--line: #dce4ef;--muted: #66758a;--accent: #2563eb;--violet: #4f46e5;--amber: #d97706}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:#f4f7fb}body{min-width:320px}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid rgba(79,70,229,.28);outline-offset:2px}.app-shell{min-height:100vh;background:#f4f7fb}.topbar{height:56px;display:flex;align-items:center;gap:16px;padding:0 18px;border-bottom:1px solid var(--line);background:#ffffffe6;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);position:relative;z-index:20;box-shadow:0 1px #0f172a05}.brand{display:flex;align-items:center;gap:9px;text-decoration:none;min-width:max-content;color:#172033;font-size:14px;letter-spacing:.01em}.brand-mark{width:30px;height:30px;display:grid;place-items:center;border:1px solid #c7d2fe;border-radius:9px;color:#3730a3;background:linear-gradient(145deg,#eef2ff,#e0e7ff);box-shadow:0 3px 10px #4f46e51a;font-weight:850}.search-wrap{position:relative;flex:1;max-width:620px;margin-inline:auto}.search-input{width:100%;border:1px solid #d8e0eb;background:#f8fafc;color:#172033;border-radius:10px;padding:8px 14px 8px 38px;outline:none;box-shadow:inset 0 1px 2px #0f172a06}.search-input::placeholder{color:#94a3b8}.search-input:focus{border-color:#818cf8;background:#fff;box-shadow:0 0 0 3px #6366f11f}.search-glyph{position:absolute;left:13px;top:7px;color:#64748b}.search-results{position:absolute;inset:calc(100% + 8px) 0 auto;background:#fff;border:1px solid var(--line);border-radius:14px;padding:7px;box-shadow:0 22px 60px #1e293b29;max-height:62vh;overflow:auto}.search-result{display:block;padding:10px 12px;border-radius:9px;text-decoration:none}.search-result:hover,.search-result:focus{background:#eef2ff;outline:none}.search-result strong{display:block;color:#1e293b;font-size:14px}.search-result span{color:var(--muted);font-size:12px}.lang-switch{display:flex;border:1px solid #d8e0eb;border-radius:10px;overflow:hidden;background:#f8fafc}.lang-switch a{padding:8px 10px;text-decoration:none;color:#64748b;font-size:12px}.lang-switch a.active{background:#3730a3;color:#fff;font-weight:750}.workspace{height:calc(100vh - 56px);position:relative;overflow:hidden}.graph-stage{width:100%;height:100%;min-width:0;position:relative;overflow:hidden;background-color:#f8fafc;background-image:linear-gradient(#e8edf5 1px,transparent 1px),linear-gradient(90deg,#e8edf5 1px,transparent 1px),radial-gradient(circle at 50% 42%,#fff 0,#ffffffb8 48%,#eef2ff6b);background-size:28px 28px,28px 28px,100% 100%}.graph-stage:after{content:"";position:absolute;inset:0;pointer-events:none;box-shadow:inset 0 0 80px #4755690f}.graph-heading{position:absolute;z-index:4;left:16px;top:14px;width:min(520px,calc(100% - 32px));border:1px solid rgba(220,228,239,.9);border-radius:11px;background:#ffffffe6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 7px 20px #1e293b0f}.graph-heading summary{min-height:38px;display:flex;align-items:center;gap:10px;padding:8px 10px 8px 12px;cursor:pointer;list-style:none}.graph-heading summary::-webkit-details-marker{display:none}.graph-heading .eyebrow,.tutorial-eyebrow{color:#4f46e5;text-transform:uppercase;letter-spacing:.14em;font-size:9px;font-weight:850;white-space:nowrap}.graph-heading summary strong{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#273449;font-size:12px}.info-glyph{margin-left:auto;flex:0 0 auto;width:20px;height:20px;display:grid;place-items:center;border-radius:99px;background:#eef2ff;color:#4338ca;font:750 11px/1 Georgia,serif}.graph-heading p{margin:0;padding:4px 12px 7px;color:var(--muted);max-width:500px;font-size:12px;line-height:1.45}.graph-meta{display:block;padding:0 12px 11px;color:#64748b;font-size:10px}.graph-controls{position:absolute;z-index:4;left:28px;bottom:24px;display:flex;gap:8px;flex-wrap:wrap}.control{border:1px solid #d8e0eb;color:#475569;background:#ffffffe6;padding:9px 12px;border-radius:10px;cursor:pointer;font-size:12px;font-weight:650;box-shadow:0 5px 16px #1e293b12}.control:hover:not(:disabled){border-color:#a5b4fc;color:#3730a3}.control.active{border-color:#a5b4fc;color:#3730a3;background:#eef2ff}.control:disabled{cursor:default;opacity:.5}.graph-canvas{width:100%;height:100%;display:block}.graph-empty{height:100%;display:grid;place-items:center;color:var(--muted)}.material-panel{position:absolute;z-index:12;top:12px;right:12px;bottom:12px;width:min(400px,calc(100vw - 24px));overflow:auto;background:var(--panel);border:1px solid var(--line);border-radius:16px;box-shadow:0 22px 70px #1e293b2e}.material{min-height:100%}.material-head{padding:28px 28px 22px;border-bottom:1px solid var(--line);background:linear-gradient(150deg,#eef2ff,#fff 64%)}.breadcrumb{color:var(--muted);font-size:11px;line-height:1.5}.material h2{color:#172033;margin:12px 0 10px;font-size:27px;line-height:1.1;letter-spacing:-.025em}.meta-line{display:flex;gap:8px;flex-wrap:wrap;color:var(--muted);font-size:12px}.pill{border:1px solid #dbe3ed;background:#ffffffbf;border-radius:99px;padding:5px 8px}.panel-section{padding:21px 28px;border-bottom:1px solid #e5eaf1}.panel-label{margin:0 0 12px;color:#475569;font-size:11px;text-transform:uppercase;letter-spacing:.12em;font-weight:850}.concept-list{display:flex;flex-wrap:wrap;gap:7px}.concept{padding:6px 8px;background:#eef2ff;color:#4338ca;border:1px solid #e0e7ff;border-radius:7px;font-size:12px}.lesson-list,.relation-list{display:grid;gap:8px}.lesson-card,.relation{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:center;color:inherit;text-decoration:none;padding:11px 12px;border-radius:10px;border:1px solid #dfe6ef;background:#fff;box-shadow:0 2px 7px #1e293b06}.lesson-card:hover,.relation:hover{border-color:#a5b4fc;background:#fafaff}.lesson-title{color:#273449;font-size:13px;line-height:1.35}.lesson-meta{font-size:11px;color:var(--muted)}.relation button{all:unset;cursor:pointer;color:#334155;font-size:12px}.relation.requires{border-left:3px solid #f59e0b}.relation.unlocks{border-left:3px solid #0ea5e9}.tutorial-page{min-height:100vh;background:radial-gradient(circle at 78% 0%,#eef2ff,transparent 32%),#f8fafc}.tutorial-header{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:20px;min-height:64px;padding:10px 24px;border-bottom:1px solid var(--line);background:#ffffffe6;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.back-link{color:#4338ca;text-decoration:none;font-size:13px;font-weight:700}.tutorial-header .lang-switch{margin-left:auto}.tutorial-wrap{width:min(1120px,calc(100% - 32px));margin:0 auto;display:grid;grid-template-columns:minmax(0,720px) 280px;gap:56px;padding:64px 0 96px}.tutorial-main h1{color:#172033;font-size:clamp(34px,5vw,60px);line-height:.98;letter-spacing:-.045em;margin:12px 0 18px}.tutorial-deck{color:var(--muted);font-size:14px;display:flex;flex-wrap:wrap;gap:8px 18px}.fallback-banner{margin:24px 0;border:1px solid #fcd34d;background:#fffbeb;color:#92400e;border-radius:12px;padding:12px 14px;font-size:13px}.prose{color:#334155;line-height:1.75}.prose p{margin:.65em 0}.prose ul,.prose ol{padding-left:1.35em}.prose .katex-display{overflow-x:auto;overflow-y:hidden;padding:6px 0}.tutorial-section{margin-top:42px}.tutorial-section>h2{color:#1e293b;margin:0 0 16px;font-size:22px;letter-spacing:-.02em}.definition{font-size:18px;border-left:3px solid #4f46e5;padding:4px 0 4px 20px}.content-card{border:1px solid #dfe6ef;border-radius:14px;padding:18px;background:#fff;box-shadow:0 5px 18px #1e293b09;margin:10px 0}.content-card h3{color:#273449;font-size:15px;margin:0 0 10px}.content-card.success{border-color:#a7f3d0;background:#f0fdf4}.step-number{display:inline-grid;place-items:center;width:23px;height:23px;margin-right:8px;border-radius:99px;background:#e0e7ff;color:#4338ca;font-size:11px;font-weight:850}.artifact-title{color:#273449;font-size:16px;margin:18px 0 0}.artifact-level,.block-label{margin:8px 0;color:var(--muted);font-size:11px;font-weight:750;letter-spacing:.05em;text-transform:uppercase}details.disclosure{border:1px solid #dfe6ef;border-radius:13px;background:#fff;margin:10px 0;overflow:hidden}details.disclosure>summary{cursor:pointer;color:#273449;padding:15px 17px;font-weight:750;font-size:14px}details.disclosure[open]>summary{background:#f8fafc;border-bottom:1px solid #e8edf3}.disclosure-body{padding:0 17px 17px}.answer{border-left:3px solid #10b981;padding-left:14px;margin-top:15px;color:#166534}.hint{border-left:3px solid #f59e0b;padding-left:14px;color:#92400e}.illustration-card{border:1px dashed #7dd3fc;background:#f0f9ff;border-radius:14px;padding:18px}.illustration-card img{width:100%;max-height:420px;object-fit:contain;border-radius:9px}.tutorial-aside{position:sticky;top:92px;align-self:start;display:grid;gap:12px}.aside-card{border:1px solid #dfe6ef;border-radius:14px;padding:16px;background:#ffffffe0;box-shadow:0 7px 24px #1e293b0a}.aside-card strong{color:#273449;display:block;font-size:13px;margin-bottom:8px}.aside-card p{color:var(--muted);font-size:12px;line-height:1.5;margin:0}.tutorial-nav{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:46px}.tutorial-nav a{border:1px solid #dfe6ef;background:#fff;color:#3730a3;padding:14px;border-radius:12px;text-decoration:none;font-size:13px}.tutorial-nav a:hover{border-color:#a5b4fc;background:#fafaff}.tutorial-nav a:last-child{text-align:right}@media(max-width:900px){.material-panel{width:min(400px,calc(100vw - 24px))}.tutorial-wrap{grid-template-columns:1fr}.tutorial-aside{position:static;order:-1;grid-template-columns:1fr 1fr}}@media(max-width:640px){.topbar{padding:0 10px;gap:8px}.brand strong{display:none}.search-wrap{max-width:none}.search-input{font-size:13px}.lang-switch a{padding-inline:7px}.workspace{height:calc(100vh - 56px)}.graph-heading{left:10px;top:10px;width:calc(100% - 20px)}.graph-heading .eyebrow{display:none}.graph-controls{left:16px;bottom:16px}.material-panel{inset:8px;width:auto;border-radius:14px}.tutorial-header{padding:10px 14px}.tutorial-wrap{width:min(100% - 28px,720px);padding-top:38px}.tutorial-aside,.tutorial-nav{grid-template-columns:1fr}.tutorial-nav a:last-child{text-align:left}}.account-page{max-width:800px;margin:0 auto;padding:32px 20px;overflow-wrap:anywhere}.account-form{display:grid;gap:16px;max-width:420px;margin:24px 0}.account-form label{display:grid;gap:8px}.account-form input{min-width:0;padding:10px;border:1px solid var(--line);border-radius:8px}.progress-record{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:20px;margin:16px 0}.progress-record h2{font-size:18px}.depth-control{display:flex;align-items:center;gap:8px}.depth-control select{color:inherit;font:inherit;border:0;background:transparent;cursor:pointer}.graph-controls{max-width:calc(100% - 32px)}.graph-node:focus-visible circle{stroke:#4338ca;stroke-width:4px}.graph-notice{position:absolute;left:28px;top:80px;padding:10px;border-radius:8px;background:#fff7ed;color:#9a3412}.section-picker{position:absolute;inset:76px 24px 90px;overflow:auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));align-content:start;gap:12px;padding:4px}.section-choice{display:flex;align-items:center;gap:14px;min-height:64px;padding:14px;border:1px solid #d8e0eb;border-radius:12px;background:#fffffff0;color:#273449;font:inherit;font-size:14px;font-weight:650;text-align:left;cursor:pointer}.section-choice span{flex:0 0 18px;height:18px;border-radius:50%;background:#4f46e5}.section-choice:hover{border-color:#a5b4fc;background:#eef2ff}.section-choice:focus-visible{outline:3px solid #818cf8;outline-offset:1px}@media(max-width:640px){.section-picker{inset:76px 12px 124px;grid-template-columns:1fr}}.graph-stage{display:flex;flex-direction:column}.explorer-header{flex:0 0 auto;padding:14px 16px 0;position:relative;z-index:4}.explorer-header .graph-heading{position:relative;left:auto;top:auto;width:min(520px,100%)}.explorer-breadcrumbs{display:flex;flex-wrap:wrap;align-items:center;gap:2px 6px;padding-top:6px;font-size:12px;color:var(--muted)}.explorer-breadcrumbs a{display:inline-flex;align-items:center;min-height:32px;padding:4px;max-width:100%;overflow-wrap:anywhere;border-radius:5px;text-decoration:none}.explorer-breadcrumbs a:hover{background:#eef2ff;color:#3730a3}.explorer-breadcrumbs a[aria-current=page]{color:#273449;font-weight:650}.graph-view{flex:1;min-height:0;position:relative}.graph-view .section-picker{inset:12px 24px 90px}.section-choice{text-decoration:none}.section-choice small{display:block;margin-top:5px;color:var(--muted);font-size:12px;font-weight:400}@media(max-width:640px){.explorer-header{padding:10px 12px 0}.graph-view .section-picker{inset:12px 12px 124px}}.topbar{height:76px;padding:0 32px;box-shadow:none;background:#fff}.brand{font-size:27px;letter-spacing:-.04em;gap:12px}.brand-mark{border:0;background:none;box-shadow:none;color:#3265f1;width:38px;height:38px}.search-wrap{max-width:700px}.search-input{padding:12px 16px 12px 46px;font-size:15px;background:#f8faff;border-color:#d5def0}.search-glyph{top:12px;left:15px}.lang-switch{border:0;background:none}.lang-switch a{font-size:14px;font-weight:650}.lang-switch a.active{background:none;color:#2563eb}.workspace{height:calc(100dvh - 76px)}.atlas-workspace{height:auto;min-height:calc(100dvh - 76px);overflow:visible;background:#fcfdff}.atlas{max-width:1800px;margin:auto;padding:22px 32px 26px;color:#111a32}.atlas-intro{margin-bottom:24px}.atlas-eyebrow{font-size:11px;font-weight:750;letter-spacing:.24em;color:#61729c}.atlas-intro h1{margin:10px 0;font-size:clamp(30px,3.6vw,50px);line-height:1.12;letter-spacing:-.04em;font-weight:750}.atlas-intro h1:focus{outline:none}.atlas-intro p{max-width:62ch;margin:0;color:#617295;font-size:clamp(16px,1.7vw,20px);line-height:1.55}.atlas-body{display:grid;grid-template-columns:minmax(0,1fr);min-height:0}.atlas-map{position:relative;min-width:0;display:flex;flex-direction:column;min-height:340px;background-image:radial-gradient(#dce6f7 .8px,transparent .8px);background-size:22px 22px;box-shadow:inset 0 0 80px #4755690f}.atlas-scroll{overflow:auto;flex:1;max-height:680px}.atlas-clusters{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,390px),470px));justify-content:center;align-content:center;gap:44px 72px;min-height:280px;padding:32px 28px}.subject-cluster{display:flex;align-items:center;gap:24px;min-width:0;flex-direction:row-reverse}.subject-cluster.reverse{flex-direction:row}.subject-hub{flex:0 0 132px;padding:8px 0;border:0;cursor:pointer;color:#111a32;background:transparent;display:flex;flex-direction:column;align-items:center;gap:8px}.subject-hub strong{font-size:20px;letter-spacing:-.03em}.subject-action{font-size:11px;font-weight:750;letter-spacing:.08em;text-transform:uppercase;color:var(--subject-color)}.subject-orb,.index-orb{display:grid;place-items:center;border-radius:50%;background:var(--subject-color);color:#fff}.subject-orb{width:82px;height:82px;box-shadow:0 7px 22px color-mix(in srgb,var(--subject-color) 22%,transparent);border:5px solid color-mix(in srgb,var(--subject-color) 65%,white)}.subject-hub.selected .subject-orb{outline:5px solid color-mix(in srgb,var(--subject-color) 14%,white)}.subject-hub:hover .subject-orb{outline:5px solid color-mix(in srgb,var(--subject-color) 20%,white)}.subject-branches{display:flex;flex-direction:column;gap:18px;flex:1;min-width:0;position:relative}.atlas-node{position:relative;display:flex;align-items:center;gap:10px;min-height:44px;padding:10px 13px;border-radius:25px;background:color-mix(in srgb,var(--subject-color) 8%,#fff);border:1px solid color-mix(in srgb,var(--subject-color) 20%,white);color:#172033;text-decoration:none;font-size:14px;font-weight:600;line-height:1.35}.atlas-node:after{content:"";position:absolute;width:25px;height:1px;background:color-mix(in srgb,var(--subject-color) 60%,white);left:100%;top:50%}.subject-branches:after{content:"";position:absolute;right:-25px;top:22px;bottom:49px;width:1px;background:color-mix(in srgb,var(--subject-color) 60%,white)}.reverse .atlas-node:after{left:auto;right:100%}.reverse .subject-branches:after{right:auto;left:-25px}.atlas-node:hover{border-color:var(--subject-color);background:color-mix(in srgb,var(--subject-color) 13%,white)}.node-dot{width:9px;height:9px;border-radius:50%;background:var(--subject-color);flex-shrink:0}.atlas-more{display:flex;justify-content:center;align-items:center;gap:5px;border:none;background:none;color:var(--subject-color);cursor:pointer;font-size:12px;min-height:28px}.atlas-footer{display:flex;align-items:center;gap:12px;padding:12px 20px 18px}.atlas-zoom{display:flex;background:#fff;border:1px solid #d5def0;border-radius:8px;overflow:hidden}.atlas-zoom button{display:grid;place-items:center;border:0;border-right:1px solid #d5def0;background:#fff;color:#51648c;height:40px;width:42px;cursor:pointer}.atlas-zoom button:last-child{border:0}.atlas-zoom button:disabled{opacity:.4;cursor:default}.atlas-legend{font-size:11px;color:#65779d}.atlas-index{border-left:1px solid #dce4ef;padding:0 0 0 26px;display:flex;flex-direction:column}.atlas-index h2{font-size:30px;letter-spacing:-.03em;margin:0 0 25px}.index-subject{display:flex;align-items:center;gap:16px;margin-bottom:24px}.index-orb{width:57px;height:57px;flex-shrink:0}.index-subject h3{margin:0 0 5px;font-size:25px;color:var(--subject-color);letter-spacing:-.025em}.index-subject p{color:#7081a6;font-size:14px;margin:0}.atlas-section-list{padding:0;margin:0;list-style:none;display:flex;flex-direction:column;gap:10px;max-height:420px;overflow-y:auto}.atlas-section-list a{display:grid;grid-template-columns:28px 1fr 19px;align-items:center;gap:12px;min-height:59px;border:1px solid #dfe6f2;border-radius:12px;padding:12px;font-size:14px;line-height:1.4;text-decoration:none;background:#fff}.atlas-section-list a:hover{background:#f1f5ff;border-color:#a7bff5}.atlas-section-list svg{color:#7283a7}.section-number{display:grid;place-items:center;background:#edf3ff;border-radius:50%;width:28px;height:28px;color:#416093;font-weight:650}.atlas-primary{display:flex;justify-content:center;align-items:center;gap:14px;background:#2864ee;color:#fff;border-radius:10px;padding:17px 12px;margin-top:22px;text-decoration:none;font-size:15px}.atlas-primary:hover{background:#1c50ce}.atlas-source{margin:auto 0 0;padding-top:30px;color:#8596b7;font-size:12px}.atlas-empty{padding:40px}@media(min-width:1550px){.atlas-node{font-size:15px}}@media(max-width:1150px){.atlas-clusters{grid-template-columns:minmax(0,540px);gap:34px}.subject-cluster{width:100%}.atlas-legend{display:none}}@media(max-width:700px){.topbar{height:auto;min-height:68px;padding:14px 18px;flex-wrap:wrap;gap:12px}.brand{font-size:23px}.search-wrap{order:4;flex-basis:100%;max-width:none}.lang-switch{margin-left:auto}.atlas{padding:22px 18px}.atlas-intro{margin-bottom:22px}.atlas-map{min-height:0}.atlas-scroll{max-height:none;overflow:visible}.atlas-clusters{grid-template-columns:1fr;align-content:start;min-height:0;padding:20px 0 0;gap:36px}.subject-cluster,.subject-cluster.reverse{flex-direction:column;align-items:stretch;gap:16px}.subject-hub{flex-basis:auto;flex-direction:row;justify-content:flex-start;gap:12px;min-height:72px;text-align:left}.subject-hub strong{font-size:18px}.subject-action{margin-left:auto;text-align:right;line-height:1.35}.subject-orb{width:64px;height:64px;flex:0 0 64px}.subject-branches{gap:10px}.atlas-node{min-height:48px;font-size:14px;padding:11px 14px}.atlas-footer{padding:18px 0}.atlas-index{padding:24px 0 0;margin-top:24px;border-left:0;border-top:1px solid #dce4ef}.atlas-section-list{max-height:none}.atlas-index h2{font-size:26px}.workspace:not(.atlas-workspace){height:calc(100dvh - 132px)}}.subject-cluster{position:relative}.cluster-edges{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;overflow:visible}.subject-hub,.subject-branches{position:relative;z-index:1}.atlas-node:after,.subject-branches:after{display:none}@media(min-width:1151px){.subject-cluster{justify-content:center;gap:34px}.subject-cluster.reverse{justify-content:center}.subject-branches{flex:0 1 280px}.atlas-node{font-size:14px}}@media(max-width:700px){.topbar .brand strong{display:inline}}.course-version{display:flex;align-items:center;gap:8px;color:#65718a;font-size:12px;padding:6px 20px;position:relative;z-index:5}.course-version select{max-width:min(360px,65vw);color:#283c60;background:#fff;border:1px solid #dce4ef;border-radius:7px;padding:6px;font:inherit}.course-workspace{height:auto;min-height:calc(100dvh - 76px);overflow:visible;background:#fcfdff}.course-screen{color:#121a33}.course-banner{padding:24px 36px 30px}.course-banner nav{display:flex;gap:16px;text-transform:uppercase;letter-spacing:.15em;color:#7483a9;font-size:11px;font-weight:700}.course-banner nav a{text-decoration:none}.course-identity{display:flex;align-items:center;gap:22px;margin-top:16px}.course-identity-icon{display:grid;place-items:center;width:68px;height:68px;flex-shrink:0;border-radius:50%;background:#7951ec;color:#fff}.course-identity h1{margin:0 0 5px;font-size:clamp(26px,3vw,42px);letter-spacing:-.04em;line-height:1.15}.course-identity p{margin:0;font-size:20px;color:#7584a7}.course-columns{display:grid;grid-template-columns:265px minmax(0,1fr) 340px;border-top:1px solid #edf0f9;min-height:calc(100dvh - 235px)}.course-sections{padding:24px 20px;border-right:1px solid #e3e9f4;display:flex;flex-direction:column}.course-sections h2,.course-material-header{font-size:11px;letter-spacing:.13em;text-transform:uppercase;color:#536993;margin:0 0 24px;font-weight:750}.course-sections ol{list-style:none;padding:0;margin:0}.course-sections li{border-bottom:1px solid #e5eaf5;padding:10px 0}.course-sections li>button{display:grid;grid-template-columns:28px 1fr 16px;align-items:center;gap:10px;width:100%;border:0;background:none;padding:13px 8px;border-radius:9px;text-align:left;color:#192444;font-size:13px;line-height:1.45;cursor:pointer}.course-sections li>button.current{background:#eee8ff;box-shadow:inset 3px 0 #8050f2;font-weight:650}.course-subsections{padding:10px 4px 10px 38px;display:flex;flex-direction:column;gap:4px}.course-subsections button{text-align:left;font-size:13px;line-height:1.5;border:0;border-left:2px solid #e1d7fb;padding:8px 10px;color:#344568;background:none;cursor:pointer}.course-subsections button.active,.course-subsections button:hover{color:#7045d9;background:#f4f0ff}.course-programme{color:#71809e;font-size:11px;margin-top:22px}.course-programme select{display:block;margin-top:8px;width:100%;padding:8px 4px;border:1px solid #e0e6f1;border-radius:7px;background:#fff;color:#455779;font-size:11px}.course-source{font-size:12px;color:#7f8fb0;margin:auto 0 0;padding-top:30px}.course-center{min-width:0;display:flex;flex-direction:column;background-image:radial-gradient(#dfe7f7 .8px,transparent .8px);background-size:20px 20px}.course-graph-header{padding:24px 24px 16px;display:flex;flex-wrap:wrap;align-items:center;gap:16px;background:#fcfdff}.course-graph-header h2{font-size:27px;letter-spacing:-.03em;margin:0 0 4px}.course-graph-header p{font-size:17px;color:#7483a5;margin:0}.course-tools{display:flex;gap:12px;margin-left:auto;color:#65769b;font-size:11px;align-items:center}.course-tools button{display:flex;gap:6px;align-items:center;border:0;background:transparent;font:inherit;color:inherit;cursor:pointer}.switch-track{width:28px;height:17px;border-radius:20px;background:#dfe5f1;position:relative}.switch-track:after{content:"";position:absolute;left:2px;top:2px;width:13px;height:13px;border-radius:50%;background:#fff}.enabled .switch-track{background:#8760e8}.enabled .switch-track:after{left:13px}.course-tools label{display:flex;gap:7px;align-items:center;border:1px solid #dae2f1;padding:7px;border-radius:6px}.course-tools select{border:0;color:inherit;background:transparent;font:inherit}.course-graph-scroll{overflow:auto;flex:1;max-height:680px;min-height:400px}.course-map{position:relative}.course-edges{position:absolute;inset:0;pointer-events:none}.course-node{position:absolute;transform:translateY(-50%);width:110px;border:0;background:transparent;color:#192441;padding:0;display:flex;flex-direction:column;align-items:center;gap:10px;font-size:15px;cursor:pointer}.course-orb{width:65px;height:65px;display:grid;place-items:center;border-radius:50%;background:#7c4eec;color:#fff;border:4px solid #c4aaff;box-shadow:0 4px 13px #8766dd30}.subsection .course-orb{background:#6694f5;border-color:#c2d8ff;width:56px;height:56px}.course-node.topic{width:206px;min-height:56px;flex-direction:row;gap:10px;text-align:left;padding:12px 15px;font-size:14px;line-height:1.4;border:1px solid #d4e1fc;border-radius:28px;background:#edf3ff}.topic-dot{width:10px;height:10px;flex:0 0 10px;border-radius:50%;background:#6893f1}.course-node.topic.chosen{border-color:#9e77f6;background:#eee7ff;box-shadow:0 0 0 4px #ede6fc90}.topic.chosen .topic-dot{background:#8850f1}.course-node:hover{filter:brightness(.98)}.course-node:focus-visible{outline:3px solid #7951ec;outline-offset:4px}.course-map-footer{margin-top:auto;display:flex;justify-content:space-between;gap:12px;align-items:center;padding:18px 24px}.course-map-footer>span{font-size:11px;color:#6b7c9e}.course-material{min-width:0;padding:24px;border-left:1px solid #e3e9f4;background:#fff;max-height:850px;overflow:auto}.course-material-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.course-material-header button{border:0;color:#637597;background:none;padding:4px;cursor:pointer}.course-material>h2{font-size:29px;letter-spacing:-.03em;line-height:1.2;margin:0 0 12px}.course-material-path{color:#7d69b9;font-size:13px;margin-bottom:32px}.course-lessons h3,.course-related h3{display:flex;gap:9px;align-items:center;font-size:19px;margin:0 0 14px}.course-lessons h3>span{font-size:11px;background:#eef2fa;padding:2px 6px;border-radius:9px;color:#6c7da1}.course-lesson{display:grid;grid-template-columns:23px minmax(0,1fr) auto;align-items:center;gap:10px;border-top:1px solid #e6ecf6;padding:17px 0;font-size:13px;line-height:1.5;color:#223052;text-decoration:none}.course-lesson>svg{color:#697fa9}.course-lesson small{font-size:10px;color:#697c9e;background:#f0f3f9;padding:3px 7px;border-radius:12px}.course-lesson[href]:hover{color:#6f42d7;background:#faf8ff}.course-pending{display:flex;gap:9px;align-items:flex-start;background:#f2f5fc;border-radius:10px;padding:13px;color:#7182a4;font-size:13px;line-height:1.6}.course-pending svg{flex-shrink:0;margin-top:3px}.course-related{margin-top:25px}.course-related button{display:flex;justify-content:space-between;align-items:center;gap:10px;width:100%;border:1px solid #dfd4fb;border-radius:9px;padding:12px;background:#fff;color:#7951ca;text-align:left;cursor:pointer;margin-bottom:8px;font-size:13px}.course-related small{display:block;font-size:10px;color:#8d9ab2;margin-bottom:4px}.course-topic-details{color:#7384a1;font-size:12px;line-height:1.6;margin-top:24px}.course-topic-details summary{cursor:pointer}.course-topic-details ul{padding-left:15px;overflow-wrap:anywhere}.course-material-empty{color:#8695af;padding:70px 5px;text-align:center}.course-material-empty h2{font-size:23px;color:#394b6b}.course-material-empty p{font-size:14px;line-height:1.7}.course-error{padding:15px;color:#a73535}@media(min-width:1550px){.course-columns{grid-template-columns:295px minmax(0,1fr) 380px}}@media(max-width:1100px){.course-columns{grid-template-columns:220px minmax(0,1fr)}.course-material{grid-column:1/-1;border-top:1px solid #e3e9f4;max-height:none}.course-identity h1{font-size:31px}}@media(max-width:700px){.course-banner{padding:22px 18px}.course-identity{gap:12px}.course-identity h1{font-size:25px}.course-identity p{font-size:15px;line-height:1.5}.course-identity-icon{width:50px;height:50px}.course-columns{grid-template-columns:1fr}.course-sections{border-right:0;border-bottom:1px solid #e3e9f4;max-height:340px;overflow:auto}.course-center{min-height:640px}.course-graph-header{padding:20px 18px}.course-graph-header h2{font-size:24px}.course-tools{margin-left:0}.course-graph-scroll{max-height:600px}.course-material{padding:24px 18px}.course-map-footer>span{font-size:10px}.course-source{display:none}}.course-node:not(.topic){transform:translateY(-32px)}.course-node.subsection{transform:translateY(-28px)}@media(min-width:1101px){.course-columns{grid-template-columns:290px minmax(0,1fr) 380px}}.course-lesson{font-size:14px}.course-sections li>button{font-size:14px}@media(min-width:1101px){.course-center{height:calc(100dvh - 238px);min-height:650px}.course-graph-scroll{min-height:0}.course-material{max-height:calc(100dvh - 238px);min-height:650px}}.graph-pan{cursor:grab;touch-action:pan-x pan-y pinch-zoom;user-select:none;-webkit-user-select:none}.graph-pan.is-panning,.graph-pan.is-panning *{cursor:grabbing!important}.focused-page{max-width:1120px;margin:0 auto;padding:32px 28px 72px}.focused-heading{margin-bottom:28px}.focused-heading nav{font-size:14px;line-height:1.8}.focused-heading h1{font-size:clamp(26px,4vw,40px);line-height:1.2;margin:12px 0}.programme-label,.muted{color:#61708a}.choice-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px}.navigation-card{display:flex;flex-direction:column;gap:10px;padding:20px;border:1px solid #dce3ef;border-radius:14px;background:#fff;text-decoration:none;color:#192444}.navigation-card:hover,.navigation-card.highlighted{border-color:#8050f2;background:#faf8ff}.navigation-card span{font-size:14px;color:#596882}.navigation-card h3{margin:0}.topic-list{display:grid;gap:12px}.topic-group{margin:30px 0}.topic-group h2{font-size:22px}.filter-bar{display:flex;gap:16px;align-items:end;flex-wrap:wrap;margin:24px 0}.filter-bar label{display:grid;gap:8px;flex:1;min-width:180px}.filter-bar input,.filter-bar select,.map-settings select{padding:10px;border:1px solid #cbd4e4;border-radius:8px;background:#fff;color:#192444;max-width:100%;min-height:44px}.focused-section-picker,.map-settings,.topic-details{padding:16px;border:1px solid #dce3ef;border-radius:10px;margin:18px 0}.focused-section-picker nav{display:grid;gap:12px;padding-top:16px}.view-tabs{display:flex;gap:8px;margin:20px 0}.view-tabs button{padding:12px 20px;border:1px solid #dce3ef;border-radius:8px;background:#fff;cursor:pointer}.view-tabs button.active{background:#eee8ff;border-color:#8050f2}.map-settings label{display:inline-flex;align-items:center;gap:12px;padding:12px}.reader-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:36px}.reader-layout .tutorial-main{padding:0;min-width:0}.reader-aside{font-size:14px}.reader-aside h2{font-size:18px}.reader-aside .control{display:inline-block;margin-top:20px}.reader-page .tutorial-deck{margin-bottom:28px}.reader-aside [aria-current=page]{font-weight:700;color:#6436c8}.site-search{display:flex;align-items:center;gap:10px;flex:1}.site-search input:not([type=hidden]){min-width:0;flex:1;padding:10px;border:1px solid #dce3ef;border-radius:8px;background:#fafbff}.site-account{white-space:nowrap}.shared-header{gap:20px}.skip-link{position:absolute;top:-100px;left:12px;z-index:1000;padding:12px;background:#fff}.skip-link:focus{top:8px}.navigation-loading{position:fixed;bottom:16px;right:16px;padding:10px 20px;background:#eee8ff;border:1px solid #8050f2;border-radius:8px;z-index:1000}.atlas-body{grid-template-columns:minmax(0,1fr)}.progress-record pre{white-space:pre-wrap;overflow-wrap:anywhere}.progress-record dd{margin-left:0;overflow-wrap:anywhere}.progress-record dt{font-weight:600}.pending{background:#f8f9fc}.focused-page h1:focus{outline:none}a:focus-visible,button:focus-visible,summary:focus-visible,select:focus-visible{outline:3px solid #8050f2;outline-offset:3px}.focused-page summary{cursor:pointer;min-height:28px}.focused-page .back-link{display:inline-block;margin-bottom:12px}@media(max-width:800px){.reader-layout{grid-template-columns:1fr}.reader-aside{border-top:1px solid #dce3ef;padding-top:24px}.shared-header{flex-wrap:wrap}.site-search{order:3;flex-basis:100%}.site-account{margin-left:auto}.focused-page{padding:24px 18px 48px}.choice-grid{grid-template-columns:1fr}.filter-bar{align-items:stretch}.filter-bar label{min-width:100%}.focused-page .course-graph-scroll{height:560px}.reader-layout .tutorial-main{order:0}}@media(min-width:701px)and (max-width:800px){.shared-header{height:auto;min-height:112px;padding-top:12px;padding-bottom:12px}}.focused-heading nav span{display:inline-block;margin:0 7px}.focused-page h1{overflow-wrap:anywhere}.topic-list>a:not(.navigation-card){padding:7px 0;min-height:36px}.assessment-question{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:20px;margin:16px 0}.question-number{font-size:12px;letter-spacing:.04em;text-transform:uppercase;color:#61708a;margin:0 0 8px}.question-prompt{margin-bottom:12px}.question-fields{border:0;margin:0;padding:0;min-width:0}.choice-list{display:grid;gap:10px}.choice-option{display:flex;gap:10px;align-items:flex-start;padding:10px 12px;border:1px solid #dce3ef;border-radius:10px;background:#fff;cursor:pointer}.choice-option input{margin-top:4px}.response-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;margin:10px 0}.response-row label{font-size:13px;font-weight:650;color:#475569;flex:0 0 auto}.response-row input,.response-row select{flex:1 1 160px;min-width:0;padding:10px;border:1px solid #cbd4e4;border-radius:8px;background:#fff;color:#192444;min-height:44px}.question-unit{color:#61708a;font-size:14px;overflow-wrap:anywhere}.question-help{color:#61708a;font-size:13px;margin:8px 0 0}.question-error{color:#b42318;font-size:13px;margin:8px 0 0}.unanswered-note{color:#61708a;font-size:13px;margin:8px 0}.assessment-feedback{margin-top:14px;padding:12px 14px;border-radius:10px;border:1px solid #c7d2fe;background:#eef2ff}.assessment-feedback.feedback-bad{border-color:#fecdca;background:#fef3f2}.feedback-line{margin:0}.feedback-frame{color:#475569;font-size:13px}.feedback-correct{color:#027a48}.feedback-wrong{color:#b42318}.feedback-explanation{margin-top:8px}.feedback-stale{margin:8px 0 0;color:#92400e;font-size:13px}.runner-total{color:#61708a;font-size:14px}.form-error{color:#b42318;background:#fef3f2;border:1px solid #fecdca;border-radius:10px;padding:12px 14px;margin:16px 0;font-size:14px}.conflict-banner{color:#92400e;background:#fffbeb;border:1px solid #fcd34d;border-radius:12px;padding:12px 14px;margin:16px 0;font-size:14px}.unsaved-hint{color:#9a3412;background:#fff7ed;border:1px solid #fbd38d;border-radius:10px;padding:10px 12px;margin:12px 0;font-size:13px}.practice-note{color:#3730a3;background:#eef2ff;border:1px solid #c7d2fe;border-radius:10px;padding:10px 12px;margin:12px 0;font-size:13px}.runner-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin:20px 0}.runner-nav{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin:16px 0}.inline-form{display:flex;margin:12px 0}.page-links{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}.page-links a{min-width:40px;min-height:40px;display:inline-flex;align-items:center;justify-content:center;border:1px solid #dce3ef;border-radius:8px;padding:8px 10px;text-decoration:none;color:#192444;font-size:13px;background:#fff}.page-links a[aria-current=page]{background:#eee8ff;border-color:#8050f2;font-weight:700}.page-gap{padding:8px 4px;color:#61708a}.assessment-summary{display:flex;flex-wrap:wrap;gap:8px 24px;margin:16px 0;font-size:15px}.assessment-summary p{margin:0}.concept-entry{display:grid;gap:8px}.concept-practice{color:#4338ca;font-size:13px;font-weight:700;text-decoration:none;min-height:36px;display:inline-flex;align-items:center}@media(max-width:480px){.assessment-question{padding:14px}.page-links a{min-width:36px;min-height:36px}.runner-actions{gap:8px}}@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(./KaTeX_AMS-Regular.BQhdFMY1.woff2) format("woff2"),url(./KaTeX_AMS-Regular.DMm9YOAa.woff) format("woff"),url(./KaTeX_AMS-Regular.DRggAlZN.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(./KaTeX_Caligraphic-Bold.Dq_IR9rO.woff2) format("woff2"),url(./KaTeX_Caligraphic-Bold.BEiXGLvX.woff) format("woff"),url(./KaTeX_Caligraphic-Bold.ATXxdsX0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(./KaTeX_Caligraphic-Regular.Di6jR-x-.woff2) format("woff2"),url(./KaTeX_Caligraphic-Regular.CTRA-rTL.woff) format("woff"),url(./KaTeX_Caligraphic-Regular.wX97UBjC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(./KaTeX_Fraktur-Bold.CL6g_b3V.woff2) format("woff2"),url(./KaTeX_Fraktur-Bold.BsDP51OF.woff) format("woff"),url(./KaTeX_Fraktur-Bold.BdnERNNW.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(./KaTeX_Fraktur-Regular.CTYiF6lA.woff2) format("woff2"),url(./KaTeX_Fraktur-Regular.Dxdc4cR9.woff) format("woff"),url(./KaTeX_Fraktur-Regular.CB_wures.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(./KaTeX_Main-Bold.Cx986IdX.woff2) format("woff2"),url(./KaTeX_Main-Bold.Jm3AIy58.woff) format("woff"),url(./KaTeX_Main-Bold.waoOVXN0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(./KaTeX_Main-BoldItalic.DxDJ3AOS.woff2) format("woff2"),url(./KaTeX_Main-BoldItalic.SpSLRI95.woff) format("woff"),url(./KaTeX_Main-BoldItalic.DzxPMmG6.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(./KaTeX_Main-Italic.NWA7e6Wa.woff2) format("woff2"),url(./KaTeX_Main-Italic.BMLOBm91.woff) format("woff"),url(./KaTeX_Main-Italic.3WenGoN9.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(./KaTeX_Main-Regular.B22Nviop.woff2) format("woff2"),url(./KaTeX_Main-Regular.Dr94JaBh.woff) format("woff"),url(./KaTeX_Main-Regular.ypZvNtVU.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(./KaTeX_Math-BoldItalic.CZnvNsCZ.woff2) format("woff2"),url(./KaTeX_Math-BoldItalic.iY-2wyZ7.woff) format("woff"),url(./KaTeX_Math-BoldItalic.B3XSjfu4.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(./KaTeX_Math-Italic.t53AETM-.woff2) format("woff2"),url(./KaTeX_Math-Italic.DA0__PXp.woff) format("woff"),url(./KaTeX_Math-Italic.flOr_0UB.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(./KaTeX_SansSerif-Bold.D1sUS0GD.woff2) format("woff2"),url(./KaTeX_SansSerif-Bold.DbIhKOiC.woff) format("woff"),url(./KaTeX_SansSerif-Bold.CFMepnvq.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(./KaTeX_SansSerif-Italic.C3H0VqGB.woff2) format("woff2"),url(./KaTeX_SansSerif-Italic.DN2j7dab.woff) format("woff"),url(./KaTeX_SansSerif-Italic.YYjJ1zSn.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(./KaTeX_SansSerif-Regular.DDBCnlJ7.woff2) format("woff2"),url(./KaTeX_SansSerif-Regular.CS6fqUqJ.woff) format("woff"),url(./KaTeX_SansSerif-Regular.BNo7hRIc.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(./KaTeX_Script-Regular.D3wIWfF6.woff2) format("woff2"),url(./KaTeX_Script-Regular.D5yQViql.woff) format("woff"),url(./KaTeX_Script-Regular.C5JkGWo-.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(./KaTeX_Size1-Regular.mCD8mA8B.woff2) format("woff2"),url(./KaTeX_Size1-Regular.C195tn64.woff) format("woff"),url(./KaTeX_Size1-Regular.Dbsnue_I.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(./KaTeX_Size2-Regular.Dy4dx90m.woff2) format("woff2"),url(./KaTeX_Size2-Regular.oD1tc_U0.woff) format("woff"),url(./KaTeX_Size2-Regular.B7gKUWhC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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) format("woff2"),url(./KaTeX_Size3-Regular.CTq5MqoE.woff) format("woff"),url(./KaTeX_Size3-Regular.DgpXs0kz.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(./KaTeX_Size4-Regular.Dl5lxZxV.woff2) format("woff2"),url(./KaTeX_Size4-Regular.BF-4gkZK.woff) format("woff"),url(./KaTeX_Size4-Regular.DWFBv043.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(./KaTeX_Typewriter-Regular.CO6r4hn1.woff2) format("woff2"),url(./KaTeX_Typewriter-Regular.C0xS9mPB.woff) format("woff"),url(./KaTeX_Typewriter-Regular.D3Ib7_Hf.ttf) format("truetype")}.katex{font: 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;position:relative;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.18.4"}.katex .katex-mathml{border:0;-webkit-clip-path:inset(50%);clip-path:inset(50%);height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.katex-newline{display:block}.katex .katex-base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .katex-base,.katex .katex-strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .katex-vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .katex-thinbox{display:inline-flex;flex-direction:row;max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .katex-hdashline,.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-rule,.katex .katex-underline .underline-line,.katex .mfrac .frac-line{min-height:1px}.katex .mspace{display:inline-block}.katex .katex-smash{display:inline;line-height:0}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.katex-inner,.katex .llap>.katex-inner,.katex .rlap>.katex-inner{position:absolute}.katex .clap>.katex-fix,.katex .llap>.katex-fix,.katex .rlap>.katex-fix{display:inline-block}.katex .llap>.katex-inner{right:0}.katex .clap>.katex-inner,.katex .rlap>.katex-inner{left:0}.katex .clap>.katex-inner>span{margin-left:-50%;margin-right:50%}.katex .katex-rule{border:0 solid;display:inline-block;position:relative}.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .katex-hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.katex-root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .katex-sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .katex-sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .katex-sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .katex-sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .katex-sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .katex-sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .katex-sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .katex-sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .katex-sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .katex-sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .katex-sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .katex-sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .katex-sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .katex-sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .katex-sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .katex-sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .katex-sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .katex-sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .katex-sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .katex-sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .katex-sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .katex-sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .katex-sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .katex-sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .katex-sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .katex-sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .katex-sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .katex-sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .katex-sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .katex-sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .katex-sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .katex-sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .katex-sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .katex-sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .katex-sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .katex-sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .katex-sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .katex-sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .katex-sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .katex-sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .katex-sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .katex-sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .katex-sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .katex-sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .katex-sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .katex-sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .katex-sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .katex-sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .katex-sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .katex-sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .katex-sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .katex-sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .katex-sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .katex-sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .katex-sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .katex-sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .katex-sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .katex-sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .katex-sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .katex-sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .katex-sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .katex-sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .katex-sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .katex-sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .katex-sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .katex-sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .katex-sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .katex-sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .katex-sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .katex-sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .katex-sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .katex-sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .katex-sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .katex-sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .katex-sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .katex-sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .katex-sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .katex-sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .katex-sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .katex-sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .katex-sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .katex-sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .katex-sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .katex-sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .katex-sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .katex-sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .katex-sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .katex-sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .katex-sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .katex-sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .katex-sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .katex-sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .katex-sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .katex-sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .katex-sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .katex-sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .katex-sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .katex-sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .katex-sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .katex-sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .katex-sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .katex-sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .katex-sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .katex-sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .katex-sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .katex-sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .katex-sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .katex-sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .katex-sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .katex-sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .katex-sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .katex-sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .katex-sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .katex-sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .katex-sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .katex-sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .katex-sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .katex-sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .katex-sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .katex-sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .katex-sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .katex-accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .katex-accent .accent-body{position:relative}.katex .katex-accent .accent-body:not(.accent-full){width:0}.katex .katex-overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .katex-stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .katex-stretchy:after,.katex .katex-stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .katex-sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.katex-tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.katex-tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}