*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.58}.skip-link{color:var(--text);z-index:20;background:#161b22;border-radius:.5rem;padding:.75rem 1rem;position:absolute;top:.5rem;left:.5rem;transform:translateY(-150%)}.skip-link:focus{transform:none}.topbar{z-index:10;border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#0d1117eb;justify-content:space-between;align-items:center;gap:1rem;padding:.85rem clamp(1rem,3vw,2rem);display:flex;position:sticky;top:0}.brand{color:var(--text);align-items:center;gap:.7rem;text-decoration:none;display:flex}.brand span{color:#fff;background:#238636;border-radius:.7rem;place-items:center;width:2.5rem;height:2.5rem;font-weight:900;display:grid}nav{flex-wrap:wrap;gap:.35rem;display:flex}nav a{color:var(--brand);border-radius:.7rem;align-items:center;gap:.35rem;padding:.55rem .7rem;font-weight:800;text-decoration:none;display:inline-flex}nav a:hover,nav a:focus-visible{background:var(--surface-2)}.shell{width:min(1240px,100% - 2rem);margin:0 auto}.hero{grid-template-columns:minmax(0,1.4fr) minmax(290px,.6fr);gap:1.25rem;padding:2rem 0;display:grid}.hero>div,.panel,.card,.question,.source-panel,.scenario-card,.domain-card,.lesson-row,.flash{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}h1,h2,h3{margin:0 0 .6rem;line-height:1.15}h1{letter-spacing:0;font-size:clamp(2rem,4vw,4rem)}p{margin:.45rem 0 0}.muted{color:var(--muted)}.eyebrow{color:var(--brand);text-transform:uppercase;letter-spacing:.1em;margin:0 0 .3rem;font-size:.76rem;font-weight:900}.actions,.toolbar{flex-wrap:wrap;align-items:center;gap:.7rem;margin-top:1rem;display:flex}.button,button.option{border:1px solid var(--line);background:var(--surface-2);color:var(--brand);cursor:pointer;border-radius:.75rem;justify-content:center;align-items:center;padding:.75rem .95rem;font-weight:900;text-decoration:none;display:inline-flex}.button.small{padding:.5rem .7rem;font-size:.9rem}.stats,.domain-grid,.cards,.flash-grid,.domain-strip{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem;margin:1rem 0;display:grid}.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);gap:.2rem;padding:1rem;display:grid}.stat svg{color:var(--brand)}.stat span,.source-panel span{color:var(--muted)}.grid{gap:1.2rem;display:grid}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.lesson-layout{grid-template-columns:minmax(0,1fr) 310px;align-items:start}.panel,.card,.question,.source-panel{margin-bottom:1rem;padding:1.2rem}.page-title p:not(.eyebrow){max-width:82ch;color:var(--muted);font-size:1.08rem}.progress{margin:.8rem 0}.progress>div{justify-content:space-between;gap:1rem;display:flex}meter{width:100%;height:.9rem}.domain-card{color:inherit;padding:1.2rem;text-decoration:none;display:block}.domain-card span,.badge{background:var(--surface-2);color:var(--brand);border-radius:999px;padding:.28rem .55rem;font-size:.78rem;font-weight:900;display:inline-flex}.badge.good{color:var(--success);background:#2ea04329}.lesson-list{gap:.75rem;display:grid}.lesson-row{grid-template-columns:auto minmax(0,1fr) auto;align-items:start;gap:.8rem;padding:.9rem;display:grid}.lesson-row a{color:var(--text);text-decoration:none}.lesson-row a:hover{text-decoration:underline}.lesson-row input{width:1.2rem;height:1.2rem;margin-top:.25rem}.table-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);margin:1rem 0;padding:1rem;overflow:auto}table{border-collapse:collapse;width:100%;min-width:760px}th,td{border:1px solid var(--line);text-align:left;vertical-align:top;padding:.7rem}th{background:var(--surface-2);color:var(--text)}.source-panel{position:sticky;top:6rem}.source-panel a{color:var(--brand);border-top:1px solid var(--line);padding:.7rem 0;text-decoration:none;display:block}.source-panel strong,.source-panel span{display:block}.lesson h2{margin-top:1.4rem}.scenario-card{border-left:5px solid var(--brand-2);background:#0f1b14;margin:1rem 0;padding:1rem}.search{background:var(--surface);border:1px solid var(--line);border-radius:.8rem;align-items:center;gap:.5rem;margin-bottom:1rem;padding:.65rem .8rem;display:flex}.search input,select{width:100%;font:inherit;color:var(--text);background:0 0;border:0}select{border:1px solid var(--line);background:var(--surface);border-radius:.7rem;width:auto;padding:.65rem}.question h2{font-size:1.25rem}.option{text-align:left;width:100%;margin:.45rem 0;display:block}.option.correct{border-color:var(--success);color:var(--success);background:#2ea04329}.option.wrong{border-color:var(--danger);color:var(--danger);background:#f8514924}.feedback{border-top:1px solid var(--line);margin-top:.8rem;padding-top:.8rem}.score{color:var(--text);border-radius:var(--radius);background:#010409;margin:1rem 0;padding:1rem;font-size:1.1rem}.sources-inline a{color:var(--brand);margin-right:.5rem;display:inline-block}.small-cards{grid-template-columns:repeat(auto-fit,minmax(160px,1fr))}.mini{background:var(--surface);border:1px solid var(--line);border-radius:.8rem;padding:.75rem}.mini strong{font-size:1.4rem;display:block}.flash button:first-child{background:var(--surface-2);width:100%;min-height:170px;color:var(--text);border-radius:var(--radius);text-align:left;cursor:pointer;border:0;padding:1rem}.flash button strong{margin-top:.5rem;font-size:1.15rem;display:block}.flash .actions{padding:0 1rem 1rem}.flash .actions button{border:1px solid var(--line);background:var(--surface-2);color:var(--text);border-radius:.65rem;padding:.45rem}.check{align-items:flex-start;gap:.55rem;margin:.7rem 0;display:flex}footer{text-align:center;color:var(--muted);margin-top:3rem;padding:2rem}:focus-visible{outline:3px solid var(--brand);outline-offset:3px}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (width<=900px){.topbar{display:block}.brand{margin-bottom:.75rem}.hero,.grid.two,.lesson-layout{grid-template-columns:1fr}.source-panel{position:static}.lesson-row{grid-template-columns:auto minmax(0,1fr)}.lesson-row .badge{grid-column:2}.shell{width:min(100% - 1rem,1240px)}table{min-width:0}thead{display:none}tr,td{display:block}tr{border:1px solid var(--line);margin-bottom:.7rem}td{border:0;border-bottom:1px solid var(--line)}}.case-study{border:1px solid var(--line);border-radius:var(--radius);background:#0f1b2d;margin:1rem 0;padding:1rem}.case-study dl{gap:.7rem;margin:0;display:grid}.case-study dt{color:var(--brand);font-weight:900}.case-study dd{color:var(--text);margin:0}.walkthrough .mock-screen{border:1px solid var(--line);background:#0d1117;border-radius:1rem;margin:1rem 0;overflow:hidden}.mock-top{color:var(--text);background:#010409;align-items:center;gap:.4rem;padding:.65rem;display:flex}.mock-top span{background:#6e7681;border-radius:50%;width:.65rem;height:.65rem}.mock-top strong{margin-left:.5rem}.mock-body{padding:1rem}.mock-body h3{font-size:1.2rem}.mock-badges{flex-wrap:wrap;gap:.45rem;margin-top:.8rem;display:flex}.mock-badges span{color:var(--brand);background:#58a6ff24;border-radius:999px;padding:.3rem .55rem;font-size:.8rem;font-weight:900}body:before{content:"";pointer-events:none;z-index:-1;background:0 0;display:none;position:fixed;inset:0}input,select,button{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}.button:hover,.option:hover,.flash .actions button:hover{border-color:var(--brand);background:#1f2937}.domain-card:hover,.lesson-row:hover,.card:hover{border-color:#58a6ff}.badge{background:#1f2937}.walkthrough .mock-screen{box-shadow:inset 0 0 0 1px #f0f6fc08}.guide-card,.must-know{border:1px solid var(--line);border-radius:var(--radius);background:#161b22;margin:1rem 0;padding:1rem}.practice-grid{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:.75rem;margin:1rem 0;display:grid}.practice-grid div,.practice-link{border:1px solid var(--line);background:var(--surface-2);color:var(--text);border-radius:.9rem;padding:.85rem;text-decoration:none}.practice-grid strong{color:var(--brand);font-size:1.8rem;display:block}.practice-grid span,.practice-link span{color:var(--muted);font-size:.85rem;display:block}.practice-link strong{font-size:1rem;line-height:1.3}.practice-link:hover{border-color:var(--brand);background:#1f2937}.steps li{margin:.55rem 0}.lesson .toolbar{margin-bottom:1rem}:root{--bg:#0d1117;--surface:#161b22;--surface-2:#1c2128;--text:#dbe3ec;--muted:#9aa7b4;--line:#30363d;--brand:#79c0ff;--shadow:0 10px 28px #01040938;--radius:10px}body{font-size:15.5px;line-height:1.62}body:before{display:none}.topbar{gap:.75rem;padding:.7rem clamp(1rem,2vw,1.5rem)}.brand span{border-radius:.55rem;width:2.1rem;height:2.1rem}.brand strong{font-size:.95rem}nav{gap:.15rem}nav a{color:#b6d7ff;border-radius:.5rem;padding:.42rem .55rem;font-size:.9rem}.hero{grid-template-columns:minmax(0,1.15fr) minmax(260px,.55fr);gap:1rem;padding:1.35rem 0}.hero>div,.panel,.card,.question,.source-panel,.scenario-card,.domain-card,.lesson-row,.flash{box-shadow:var(--shadow);border-radius:var(--radius)}.hero>div{padding:clamp(1.1rem,2.2vw,1.7rem)}.hero>div:first-child{background:var(--surface);border-color:var(--line)}h1{color:#f0f6fc;font-size:clamp(1.65rem,2.6vw,2.6rem);font-weight:760}h2{color:#dbe3ec;font-size:clamp(1.08rem,1.45vw,1.38rem);font-weight:720}h3{color:#c9d1d9;font-size:1rem}.page-title p:not(.eyebrow){max-width:76ch;font-size:1rem}.eyebrow{letter-spacing:.08em;font-size:.7rem}.stats,.domain-grid,.cards,.flash-grid,.domain-strip{gap:.75rem;margin:.85rem 0}.stat,.domain-card,.lesson-row,.panel,.card,.question,.source-panel,.flash{background:#161b22}.stat{padding:.85rem}.domain-card{padding:1rem}.domain-card h2{font-size:1.08rem}.lesson-row{padding:.78rem}.button,button.option{border-radius:.55rem;padding:.62rem .78rem;font-size:.93rem}.button.primary{background:#238636;border-color:#2ea043}.badge,.domain-card span{padding:.22rem .48rem;font-size:.72rem}.guide-card,.must-know{border-radius:var(--radius);background:#161b22}.practice-grid div,.practice-link,.mini{background:#1c2128;border-radius:.65rem}.practice-grid strong{font-size:1.4rem}.table-wrap{box-shadow:var(--shadow);border-radius:var(--radius);padding:.75rem}.source-panel{top:5rem}.search{border-radius:.6rem}footer{border-top:1px solid var(--line);text-align:left;margin-top:2rem;padding:1.25rem 0}.footer-inner{justify-content:space-between;align-items:flex-start;gap:1rem;width:min(1120px,100% - 2rem);margin:0 auto;display:flex}.footer-inner p{max-width:70ch}.footer-links{flex-wrap:wrap;justify-content:flex-end;gap:.45rem;display:flex}.footer-links a{border:1px solid var(--line);color:#b6d7ff;background:#161b22;border-radius:.55rem;align-items:center;gap:.35rem;padding:.45rem .6rem;text-decoration:none;display:inline-flex}.footer-links a:hover{border-color:var(--brand);background:#1c2128}@media (width<=900px){.footer-inner{display:grid}.footer-links{justify-content:flex-start}.topbar nav{max-height:8rem;overflow:auto}.hero{padding:1rem 0}}.quiz-guide{margin-bottom:1rem}.filter-control{flex-wrap:wrap;align-items:center;gap:.55rem;margin:.25rem 0 .75rem;font-weight:700;display:inline-flex}.question{scroll-margin-top:5rem}.question-counter{border:1px solid var(--line);color:#f0f6fc;background:#0d1117;border-radius:.5rem;margin:0 0 .35rem;padding:.22rem .48rem;font-size:.85rem;font-weight:800;display:inline-flex}.options-list{gap:.45rem;margin-top:.7rem;display:grid}.option{gap:.45rem;min-height:2.75rem}.option-prefix{color:#f0f6fc;background:#0d1117;border-radius:.45rem;justify-content:center;align-items:center;min-width:1.65rem;height:1.65rem;font-weight:900;display:inline-flex}.option.correct .option-prefix{background:#2ea04347}.option.wrong .option-prefix{background:#f851493d}.embedded-practice .question{margin-top:.75rem}.brand-logo{object-fit:contain;width:2.4rem;height:2.4rem;box-shadow:none;background:0 0;border:0;border-radius:0;display:block}.brand img{box-shadow:none;background:0 0;border:0}.brand:hover .brand-logo,.brand:focus-visible .brand-logo{box-shadow:none}.breadcrumbs{margin:1rem 0 0}.breadcrumbs ol{color:var(--muted);flex-wrap:wrap;gap:.35rem;margin:0;padding:0;font-size:.9rem;list-style:none;display:flex}.breadcrumbs li{align-items:center;display:flex}.breadcrumbs li+li:before{content:"/";color:#6e7681;margin-right:.35rem}.breadcrumbs a{color:#b6d7ff;text-decoration:none}.breadcrumbs a:hover{text-decoration:underline}.lesson-page{align-items:flex-start;gap:1.4rem;display:flex}.lesson-content{flex:1;max-width:760px}.lesson-rail{width:280px;display:block;position:sticky;top:5rem}.lesson-tracker,.lesson-rail .source-panel{border:1px solid var(--line);border-radius:var(--radius);box-shadow:none;background:#161b22;margin-bottom:1rem;padding:1rem}.lesson-tracker h2{font-size:1rem}.tracker-label{color:#f0f6fc;margin-top:.8rem;font-weight:800}.lesson-meta{margin:1rem 0 0;display:block}.lesson-meta div,.lesson-summary-list div{border-top:1px solid var(--line);padding:.65rem 0}.lesson-meta dt,.lesson-summary-list dt{color:var(--muted);font-size:.82rem}.lesson-meta dd,.lesson-summary-list dd{color:var(--text);margin:0;font-weight:750}.lesson-summary-list{flex-wrap:wrap;gap:1rem;margin:1rem 0;display:flex}.lesson-summary-list div{border-top:0;border-left:3px solid var(--line);min-width:9rem;padding:.2rem 0 .2rem .65rem}.practice-list{border:1px solid var(--line);border-radius:var(--radius);margin:0 0 1rem;padding:0;list-style:none;overflow:hidden}.practice-list li+li{border-top:1px solid var(--line)}.practice-list a{color:var(--text);background:#161b22;padding:.8rem 1rem;text-decoration:none;display:block}.practice-list a:hover{background:#1c2128}.practice-list span{color:var(--muted);margin-bottom:.18rem;font-size:.82rem;font-weight:800;display:block}.lesson-content .guide-card,.lesson-content .must-know,.lesson-content .question,.lesson-content .scenario-card,.lesson-content .case-study{box-shadow:none}@media (width<=1000px){.lesson-page{display:block}.lesson-content{max-width:none}.lesson-rail{width:auto;position:static}.lesson-summary-list{display:block}.lesson-summary-list div{min-width:0;margin:.45rem 0}}:root{--bg:#0f151c;--surface:#17202a;--surface-2:#1d2834;--surface-3:#101820;--text:#dbe3ec;--muted:#a9b4c0;--line:#314050;--brand:#9dccff;--brand-2:#7bd88f;--danger:#ff9b92;--success:#7bd88f;--warn:#e3b341;--shadow:none;--radius:8px;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;font-size:16px;font-weight:400;line-height:1.7}strong,b,dt,.stat strong,.mini strong{font-weight:650}.topbar{background:#0f151cf5;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:1rem;padding:.75rem clamp(1rem,2vw,1.4rem);display:grid}.brand{gap:.65rem;min-width:max-content}.brand strong{letter-spacing:0;font-size:.98rem;font-weight:620}.brand-logo{width:2.15rem;height:2.15rem}nav{justify-content:flex-end;gap:.2rem .35rem}nav a{color:#c7d2de;border-radius:.45rem;padding:.4rem .5rem;font-size:.9rem;font-weight:520}nav a svg{color:#91a4b7;width:14px;height:14px}.page-title p:not(.eyebrow){color:var(--muted);max-width:72ch;font-size:1rem;line-height:1.65}.hero{padding:1.25rem 0}.hero>div,.panel,.card,.question,.source-panel,.scenario-card,.domain-card,.lesson-row,.flash,.guide-card,.must-know,.lesson-tracker{background:var(--surface);border:1px solid var(--line);box-shadow:none;border-radius:var(--radius)}h3{font-size:1rem;line-height:1.35}.guide-card{background:#151e27;padding:1rem 1.15rem}.score{border:1px solid var(--line);color:var(--text);background:#111922;font-size:1rem;font-weight:500}.button,button.option,.flash .actions button{border-radius:.5rem;font-weight:560}.button{color:#d8e8ff;background:#1d2834;border-color:#3b4b5d}.question{margin:1rem 0 1.15rem;padding:1.05rem 1.1rem}.question-counter{color:#cfd8e3;background:#111922;border-color:#3a4857;font-size:.82rem;font-weight:620}.option,button.option{text-align:left;color:#dbe3ec;background:#1d2834;border-color:#364657;justify-content:flex-start;width:100%;min-height:3rem;margin:0;padding:.68rem .8rem;font-weight:450;line-height:1.5}.option:disabled{opacity:1}.option-prefix{color:#dbe3ec;background:#111922;border:1px solid #3a4857;flex:none;font-weight:620}.feedback{color:#dbe3ec}.filter-control{color:#dbe3ec;font-weight:560}.search,select{color:var(--text);background:#151e27;border-color:#3a4857}.stat strong{font-size:1.35rem}.domain-card h2,.lesson-row strong{font-weight:620}.lesson-row p,.domain-card p,.card p,.panel p{color:var(--muted)}.lesson-row{align-items:center}.footer-links a{font-weight:520}.breadcrumbs ol{font-size:.92rem}.lesson-meta dd,.lesson-summary-list dd{font-weight:620}.tracker-label{color:#dbe3ec;font-weight:620}.source-panel strong{font-weight:620}.source-panel span{color:#9facba}@media (width<=900px){.topbar{grid-template-columns:1fr}.brand{margin-bottom:0}nav{justify-content:flex-start;max-height:none}.shell{width:min(100% - 1rem,1060px)}.question{padding:1rem}.option,button.option{align-items:flex-start}.option-prefix{margin-top:.05rem}}:root{--bg:#111418;--surface:#181c21;--surface-2:#20262d;--surface-3:#15191e;--text:#eceff3;--muted:#b8c0c9;--line:#3b444e;--brand:#f2c86b;--accent-green:#7bd88f;--accent-coral:#ff9b8f;--accent-violet:#b9a7ff;--accent-sky:#8fc7ff;--danger:#ff9b8f;--success:#7bd88f;--warn:#f2c86b;--shadow:none;--radius:8px}body{background:var(--bg);color:var(--text);font-size:16px;font-weight:400;line-height:1.72}.topbar{border-bottom:1px solid var(--line);background:#111418f7;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:1rem;padding:.75rem clamp(.9rem,2vw,1.35rem);display:grid}.brand strong{color:#f4f1e8;font-size:1rem;font-weight:600}nav{justify-content:flex-end;gap:.25rem;min-width:0}nav a{color:#cbd3dc;white-space:nowrap;border-radius:.5rem;padding:.43rem .55rem;font-size:.9rem;font-weight:500}nav a svg{color:#9ba8b5}nav a:hover,nav a:focus-visible{color:#fff;background:#242b33}nav a.active,nav a[aria-current=page]{color:#ffe3a1;background:#2b2414;box-shadow:inset 0 0 0 1px #f2c86b59}.page-title{padding:1.35rem 0 1rem}.page-title p:not(.eyebrow){color:var(--muted);max-width:72ch}.eyebrow{color:#d8b45f;letter-spacing:.04em;text-transform:none;font-size:.72rem;font-weight:600}h1,h2,h3{color:#f0f2f5;letter-spacing:0;font-weight:610}h1{font-size:clamp(1.65rem,2.1vw,2.3rem);line-height:1.2}h2{font-size:clamp(1.12rem,1.35vw,1.3rem);line-height:1.32}h3{font-size:1rem}.panel,.card,.question,.source-panel,.scenario-card,.domain-card,.lesson-row,.flash,.guide-card,.must-know,.lesson-tracker{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:none}.panel,.card,.question,.source-panel{padding:1.15rem}.guide-card{border-left:4px solid var(--accent-green);background:#182019}.must-know{border-left:4px solid var(--accent-violet);background:#1d1b24}.scenario-card{border-left:4px solid var(--accent-coral);background:#1f1a16}.score{border:1px solid #51456f;border-left:4px solid var(--accent-violet);color:#f0edf9;background:#1b1824;font-size:1rem;font-weight:500}.question{border-color:#3f4954;border-left:4px solid var(--brand);background:#181d23;margin:1rem 0 1.2rem;padding:1.1rem}.question h2{color:#f4f6f8;margin-bottom:.75rem;font-size:1.03rem;font-weight:600}.question-counter{color:#ffe1a1;background:#27210f;border-color:#5a4720;font-weight:620}.options-list{gap:.6rem}.option,button.option{text-align:left;color:#e6ebf0;background:#20262d;border-color:#434d58;justify-content:flex-start;align-items:flex-start;width:100%;min-height:3.1rem;margin:0;padding:.75rem .85rem;font-weight:450;line-height:1.55}.option:hover:not(:disabled){background:#28313a;border-color:#6b7785}.option-prefix{color:#f3d37e;background:#111418;border:1px solid #554620;flex:none;margin-top:.05rem;font-weight:650}.feedback{color:#e6ebf0;border-color:#44505c}.button,.flash .actions button{color:#ffe2a3;background:#242b33;border-color:#4b5561;font-weight:560}.badge,.domain-card span{color:#ffe2a3;background:#2b2414;font-weight:600}.domain-card:nth-child(6n+1){border-left:4px solid var(--brand)}.domain-card:nth-child(6n+2){border-left:4px solid var(--accent-green)}.domain-card:nth-child(6n+3){border-left:4px solid var(--accent-coral)}.domain-card:nth-child(6n+4){border-left:4px solid var(--accent-violet)}.domain-card:nth-child(6n+5){border-left:4px solid var(--accent-sky)}.domain-card:nth-child(6n){border-left:4px solid #d59bf6}.stat:nth-child(4n+1){border-top:3px solid var(--brand)}.stat:nth-child(4n+2){border-top:3px solid var(--accent-green)}.stat:nth-child(4n+3){border-top:3px solid var(--accent-coral)}.stat:nth-child(4n){border-top:3px solid var(--accent-violet)}.lesson-row p,.domain-card p,.card p,.panel p,.muted{color:var(--muted)}a{color:#ffd783}@media (width<=760px){body{font-size:16px;line-height:1.68}.shell{width:min(100% - 1rem,1040px)}.topbar{padding:.65rem .75rem .55rem;display:block;position:sticky}.brand{margin-bottom:.55rem}.brand-logo{width:2rem;height:2rem}nav{scrollbar-width:thin;-webkit-overflow-scrolling:touch;flex-wrap:nowrap;gap:.35rem;padding-bottom:.25rem;display:flex;overflow:auto hidden}nav a{flex:none;padding:.48rem .62rem;font-size:.86rem}nav a svg{display:none}.page-title{padding:1rem 0 .75rem}h1{font-size:1.55rem}h2{font-size:1.13rem}.hero,.grid.two,.lesson-page{display:block}.stats,.domain-grid,.cards,.flash-grid,.domain-strip{grid-template-columns:1fr;gap:.7rem}.question,.panel,.card,.source-panel,.guide-card,.must-know{padding:1rem}.question{border-left-width:3px}.option,button.option{gap:.55rem;padding:.78rem .75rem}.option-prefix{min-width:1.75rem;height:1.75rem}.score{padding:.9rem}.footer-inner{display:block}.footer-links{justify-content:flex-start;margin-top:.8rem}}.skip-link{color:#ffe3a1;background:#27210f;border:1px solid #5a4720}.page-lessons,.page-labs,.page-walkthroughs,.page-glossary,.page-flashcards{max-width:980px}.content-stack{max-width:820px;display:block}.library-list{display:block}.library-list .card,.glossary-list .card{margin-bottom:.85rem}.library-list .card{border-left:4px solid var(--accent-green)}.library-list .card:nth-child(3n+2){border-left-color:var(--accent-coral)}.library-list .card:nth-child(3n){border-left-color:var(--accent-violet)}.library-list .card h2,.glossary-list .card h2{font-size:1.08rem}.library-list .card ul,.library-list .card ol{margin-top:.55rem}.glossary-list{columns:2 320px;column-gap:1rem;display:block}.glossary-list .card{break-inside:avoid;border-left:4px solid var(--accent-sky)}.recall-list{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}.flash{overflow:hidden}.flash button:first-child{background:#1b1824;border-bottom:1px solid #51456f;min-height:150px}.flash button:first-child span{color:#d8b45f;font-weight:650}.flash button:first-child strong{font-size:1rem;font-weight:560;line-height:1.45}.flash .actions{gap:.5rem;display:flex}.flash .actions button{flex:1;min-height:2.65rem}.table-wrap{border-left:4px solid var(--accent-violet);background:#181c21}td a{overflow-wrap:anywhere}.lesson-list{gap:.6rem}.lesson-row{border-left:4px solid #0000}.lesson-row:hover,.lesson-row:focus-within{border-left-color:var(--brand);background:#1d232a}.lesson-row input{accent-color:#f2c86b;min-width:1.25rem}.sources-inline{line-height:1.55}.sources-inline a{margin:.2rem .45rem .2rem 0}.check input{accent-color:#7bd88f;min-width:1.2rem}.walkthrough .mock-screen{background:#12161b;border-color:#444d58;border-radius:8px}.mock-badges span{color:#ffe2a3;background:#2b2414}meter{accent-color:#f2c86b}@media (width<=760px){.page-lessons,.page-labs,.page-walkthroughs,.page-glossary,.page-flashcards{max-width:none}.toolbar,.actions{grid-template-columns:1fr;gap:.55rem;display:grid}.button,.button.small,button.option{width:100%}.filter-control{width:100%;min-width:0}.filter-control select{width:100%;min-width:0;max-width:100%}.lesson-row{grid-template-columns:auto minmax(0,1fr);align-items:start}.lesson-row .badge{grid-column:2;width:max-content}.glossary-list{columns:1}.recall-list{grid-template-columns:1fr}.flash button:first-child{min-height:130px}.table-wrap{padding:.65rem;overflow:visible}table,tbody,tr,td,th{width:100%}td{overflow-wrap:anywhere}.mock-body{padding:.85rem}.mock-badges{gap:.35rem}}:root{--bg:#121518;--surface:#191d21;--surface-2:#20252a;--surface-3:#15191d;--text:#d7dde4;--muted:#aeb7c0;--line:#343b43;--line-soft:#2a3036;--brand:#d9bf7a;--accent-green:#8ba891;--accent-coral:#b8948e;--accent-violet:#9d96b8;--accent-sky:#8fa6b7;--danger:#c79a96;--success:#8ba891;--warn:#d9bf7a}body{color:var(--text);background:#121518}h1,h2,h3{color:#d8d3c7;font-weight:560}h1{font-size:clamp(1.5rem,1.85vw,2rem)}h2{font-size:clamp(1.06rem,1.2vw,1.22rem)}.page-title p:not(.eyebrow),.lesson-row p,.domain-card p,.card p,.panel p,.muted{color:#aeb7c0}.eyebrow{color:#bca66e}.panel,.card,.question,.source-panel,.scenario-card,.domain-card,.lesson-row,.flash,.guide-card,.must-know,.lesson-tracker{background:#191d21;border-color:#343b43}.guide-card,.must-know,.scenario-card,.question,.library-list .card,.glossary-list .card,.table-wrap{border-left:1px solid #343b43}.guide-card,.must-know,.scenario-card{background:#191d21}.score{color:#d7dde4;background:#1a1d23;border-color:#343b43;border-left-style:solid;border-left-width:1px}.badge,.domain-card span{color:#d9bf7a;background:#222017;border:1px solid #3d3928}.domain-card:nth-child(n),.stat:nth-child(n){border-top-color:#343b43;border-left-color:#343b43}.domain-card:hover,.lesson-row:hover,.card:hover{background:#1d2227;border-color:#454d55}.lesson-row:hover,.lesson-row:focus-within{background:#1d2227;border-left-color:#4a5159}.button,.flash .actions button{color:#d9bf7a;background:#20252a;border-color:#3b444d}.button:hover,.option:hover,.flash .actions button:hover{background:#252b31;border-color:#535c66}.question{background:#191d21;border-left:1px solid #343b43}.question-counter{color:#d9bf7a;background:#222017;border-color:#3d3928}.search,select,input{color:#d7dde4;background:#171b1f;border-color:#3b444d}.footer-links a{color:#d9bf7a;background:#191d21;border-color:#3b444d}.sources-inline a,a{color:#d9bf7a}a:hover{color:#ead79f}.walkthrough .mock-screen{background:#171b1f;border-color:#343b43}.mock-top{background:#20252a}.mock-badges span{color:#d9bf7a;background:#222017;border:1px solid #3d3928}.lab-card{border-left:0;padding:1.15rem 1.2rem}.lab-card h2{max-width:70ch;margin-top:.45rem}.lab-objective{color:#cdd4db;font-size:1rem}.lab-section{border-top:1px solid var(--line-soft);margin-top:1rem;padding-top:.85rem}.lab-section h3{margin-bottom:.35rem}.lab-section ul,.lab-section ol{margin-top:.35rem}.lab-section li{margin:.42rem 0}.lab-notes{gap:.65rem;margin:1rem 0 0;display:grid}.lab-notes div{border:1px solid var(--line-soft);background:#171b1f;border-radius:7px;padding:.75rem .8rem}.lab-notes dt{color:#bca66e;font-size:.82rem;font-weight:600}.lab-notes dd{color:#cdd4db;margin:.2rem 0 0}@media (width<=760px){h1{font-size:1.42rem}h2{font-size:1.08rem}.topbar nav{justify-content:flex-start}.lab-card{padding:1rem}.badge,.domain-card span{white-space:normal;line-height:1.35}}h1{color:#cfc7b8;font-weight:520}h2{color:#cbc5b8;font-weight:520}h3{color:#b9c1c9;font-weight:540}.card h2,.panel h2,.lab-card h2,.question h2{color:#d0cac0;font-weight:540}.page-title p:not(.eyebrow){color:#aab3bc}.badge,.domain-card span,.mock-badges span{color:#cdb26e;background:#1f1e19;border-color:#342f22}.lab-card{background:#181c20;border-color:#30373f}.lab-section{border-top-color:#2b3138}.lab-notes div{background:#161a1e;border-color:#2b3138}.lab-notes dt{color:#c2aa6d}.lab-notes dd,.lab-objective{color:#c4ccd4}.option.selected{color:#efe6d1;background:#25241f;border-color:#6b6250}.exam-guide{margin-bottom:1rem}.page-mock .question{scroll-margin-top:5rem}.page-mock .mini strong{font-size:1.05rem}@media (width<=760px){.page-mock .toolbar{display:grid}.page-mock .filter-control select{width:100%}}.reference-aid{border:1px solid var(--line-soft);border-radius:var(--radius);background:#171b1f;padding:1rem}.reference-aid h3{margin-bottom:.45rem}.reference-aid ol{margin:.45rem 0 0;padding-left:1.15rem}.reference-aid li{color:#aeb7c0;margin:.35rem 0}.flash small,.mini small{color:#aab3bc;margin-top:.45rem;font-size:.82rem;display:block}.action-section{border-top:1px solid var(--line-soft);margin:1.35rem 0;padding:1.05rem 0}.action-section h2{margin-bottom:.45rem}.action-section p{max-width:78ch}.action-steps{gap:.75rem;margin:.9rem 0 0;padding:0;list-style:none;display:grid}.action-steps li{grid-template-columns:2rem minmax(0,1fr);align-items:start;gap:.75rem;margin:0;display:grid}.action-steps span{color:#d9bf7a;background:#222017;border:1px solid #3d3928;border-radius:999px;justify-content:center;align-items:center;width:2rem;height:2rem;font-size:.88rem;font-weight:620;display:inline-flex}.action-steps p{color:#d7dde4;margin:.08rem 0 0}.artifact-list{gap:.55rem;margin:.9rem 0 0;display:grid}.artifact-list div{border:1px solid var(--line-soft);background:#161a1e;border-radius:7px;padding:.75rem .8rem}.artifact-list dt{color:#e1d3ac;overflow-wrap:anywhere;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9rem}.artifact-list dd{color:#b9c2ca;margin:.3rem 0 0}.artifact-library-link{color:#aeb7c0;margin-top:.35rem;font-size:.9rem;display:block}.prompt-box{border:1px solid var(--line-soft);white-space:pre-wrap;color:#d7dde4;background:#15191d;border-radius:7px;margin:.8rem 0 0;padding:.9rem;font-size:.92rem;line-height:1.65;overflow:auto}.checklist{margin:.75rem 0 0;padding-left:1.15rem}.checklist li{margin:.45rem 0}.avoid-section{border:1px solid var(--line-soft);background:#181b1f;border-radius:7px;padding:.95rem}.avoid-section ul{margin:.7rem 0 0;padding-left:1.15rem}.worked-question h3{color:#e1d3ac;margin:.9rem 0 .45rem;font-size:1rem}.worked-options{gap:.55rem;margin:.85rem 0;padding:0;list-style:none;display:grid}.worked-options li{border:1px solid var(--line-soft);background:#161a1e;border-radius:7px;grid-template-columns:2rem minmax(0,1fr);align-items:start;gap:.65rem;padding:.7rem .75rem;display:grid}.worked-options span{color:#d7dde4;background:#101316;border:1px solid #343b43;border-radius:7px;justify-content:center;align-items:center;width:2rem;height:2rem;font-weight:620;display:inline-flex}.worked-options p{color:#d7dde4;margin:.08rem 0 0}.worked-options .correct-option{background:#17231b;border-color:#3f6b4a}.worked-options .correct-option span{color:#d8f0dd;background:#1c3322;border-color:#4d8058}.worked-rationales ul,.config-example ol,.config-example ul{margin:.65rem 0 0;padding-left:1.15rem}.worked-rationales li,.config-example li{margin:.42rem 0}.lesson-teaching-table h2{margin-bottom:.45rem}.lesson-teaching-table p{max-width:78ch;margin-bottom:.75rem}.lesson-teaching-table td{overflow-wrap:anywhere}.topic-specific h3{color:#e1d3ac;margin:.25rem 0 .65rem;font-size:1rem}.topic-specific ul{margin:.75rem 0 0;padding-left:1.15rem}.topic-specific li{margin:.4rem 0}.key-terms{border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);margin:1.2rem 0;padding:1rem 0}.key-terms div{flex-wrap:wrap;gap:.45rem;margin-top:.65rem;display:flex}.key-terms a{color:#d9bf7a;background:#1f1e19;border:1px solid #342f22;border-radius:999px;padding:.32rem .62rem;font-size:.9rem;text-decoration:none;display:inline-flex}.key-terms a:hover{color:#ead79f;background:#242219}.library-section{margin:1.5rem 0 2rem}.library-section-heading{margin-bottom:.75rem}.library-template-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}.template-card{flex-direction:column;gap:.55rem;display:flex}.template-card h3{margin:.15rem 0 0}.template-card h3 a{color:#d8d3c7;text-decoration:none}.template-card h3 a:hover{text-decoration:underline}.template-card .button{width:max-content;margin-top:auto}.template-tags{flex-wrap:wrap;gap:.35rem;margin:.65rem 0;display:flex}.template-tags code{color:#d9bf7a;overflow-wrap:anywhere;background:#171a1e;border:1px solid #343b43;border-radius:999px;padding:.22rem .48rem;font-size:.82rem;display:inline-flex}.library-detail h2:not(:first-child){margin-top:1.2rem}@media (width<=760px){.action-section{margin:1.1rem 0;padding:.9rem 0}.action-steps li{grid-template-columns:1.75rem minmax(0,1fr);gap:.6rem}.action-steps span{width:1.75rem;height:1.75rem;font-size:.82rem}.prompt-box{max-height:24rem;font-size:.88rem}.artifact-list div{padding:.7rem}.library-template-grid{grid-template-columns:1fr}.template-card .button{width:100%}}.page-home{max-width:1180px}.home-hero{grid-template-columns:minmax(0,1.35fr) minmax(320px,.65fr);align-items:stretch;gap:1rem;margin:1rem 0 1.1rem;display:grid}.home-hero-copy,.home-status-panel{border-radius:var(--radius);background:#191d21;border:1px solid #343b43;padding:clamp(1.1rem,2.4vw,1.55rem)}.home-hero-copy{background:#202631;border-color:#4a4030 #4a4030 #4a4030 #d9bf7a;border-left-style:solid;border-left-width:5px;flex-direction:column;justify-content:center;min-height:23rem;display:flex}.home-hero-copy h1{color:#e6dece;max-width:12ch;font-size:4rem;line-height:1.03}.home-lede{color:#c3cbd3;max-width:74ch;font-size:1.03rem}.home-actions .button{gap:.45rem}.home-status-panel{background:#1b2827;border-color:#3b5054 #3b5054 #3b5054 #7aa6a6;border-left-style:solid;border-left-width:5px;flex-direction:column;justify-content:space-between;display:flex}.home-status-list{gap:.7rem;margin:1rem 0 0;display:grid}.home-status-list div{border-top:1px solid var(--line-soft);padding:.72rem 0}.home-status-list dt{color:#aeb7c0;font-size:.78rem}.home-status-list dd{color:#d7dde4;margin:.18rem 0 0;font-weight:560}.home-metrics{grid-template-columns:repeat(4,minmax(0,1fr));gap:.7rem;margin:1rem 0 1.4rem;display:grid}.home-metrics .stat{border-width:4px 1px 1px;min-height:7.25rem}.home-metrics .stat:nth-child(4n+1){background:#1b1e21;border-top-color:#d9bf7a}.home-metrics .stat:nth-child(4n+2){background:#171f21;border-top-color:#7aa6a6}.home-metrics .stat:nth-child(4n+3){background:#18211c;border-top-color:#8ba891}.home-metrics .stat:nth-child(4n){background:#1c1b24;border-top-color:#9d96b8}.home-section{margin:1.4rem 0}.home-section-heading{max-width:820px;margin-bottom:.8rem}.home-section-heading p:not(.eyebrow){color:#aeb7c0}.home-capability-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:.75rem;display:grid}.home-capability{border-radius:var(--radius);color:#d7dde4;background:#191d21;border:1px solid #343b43;border-top-width:4px;grid-template-rows:auto auto 1fr;gap:.45rem;min-height:12rem;padding:1rem;text-decoration:none;display:grid}.home-capability:nth-child(4n+1){background:#1b1e21;border-top-color:#d9bf7a}.home-capability:nth-child(4n+2){background:#171f21;border-top-color:#7aa6a6}.home-capability:nth-child(4n+3){background:#18211c;border-top-color:#8ba891}.home-capability:nth-child(4n){background:#1c1b24;border-top-color:#9d96b8}.home-capability svg{color:#d9bf7a}.home-capability strong{color:#ded7c8;font-size:1.02rem}.home-capability span{color:#aeb7c0;font-size:.94rem}.home-capability:hover,.home-capability:focus-visible,.home-op:hover,.home-op:focus-visible{color:#ead79f;background:#1e2328;border-color:#555f69}.home-flow,.home-domain-readiness{border-left-width:5px;margin-bottom:0}.home-flow{background:#1b2620;border-left-color:#8ba891}.home-domain-readiness{background:#1a2430;border-left-color:#8fa6b7}.home-flow-step{border-top:1px solid var(--line-soft);color:#d7dde4;grid-template-columns:2rem minmax(0,1fr);gap:.25rem .75rem;padding:.75rem 0;text-decoration:none;display:grid}.home-flow-step span{color:#d9bf7a;background:#222017;border:1px solid #3d3928;border-radius:999px;grid-row:1/span 2;justify-content:center;align-items:center;width:2rem;height:2rem;font-weight:620;display:inline-flex}.home-flow-step strong{color:#ded7c8}.home-flow-step p{color:#aeb7c0;margin:0}.home-ops-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:.75rem;display:grid}.home-op{border-radius:var(--radius);background:#171b1f;border:1px solid #343b43;border-left-width:4px;gap:.2rem;min-height:8rem;padding:1rem;text-decoration:none;display:grid}.home-op:nth-child(4n+1){background:#171f21;border-left-color:#7aa6a6}.home-op:nth-child(4n+2){background:#1b1e21;border-left-color:#d9bf7a}.home-op:nth-child(4n+3){background:#1c1b24;border-left-color:#9d96b8}.home-op:nth-child(4n){background:#18211c;border-left-color:#8ba891}.home-op span{color:#aeb7c0;font-size:.82rem}.home-op strong{color:#ded7c8;font-size:1.2rem}.home-op small{color:#aeb7c0;line-height:1.45}@media (width<=980px){.home-hero,.home-capability-grid,.home-ops-grid{grid-template-columns:1fr 1fr}.home-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}.home-hero-copy{min-height:auto}.home-hero-copy h1{max-width:14ch;font-size:3rem}}@media (width<=760px){.page-home{max-width:none}.home-dashboard{padding:.4rem 0 1.2rem}.home-hero,.home-capability-grid,.home-ops-grid,.home-metrics{grid-template-columns:1fr}.home-hero-copy,.home-status-panel{padding:1rem}.home-hero-copy h1{max-width:100%;font-size:2rem}.home-lede{font-size:1rem}.home-capability,.home-op,.home-metrics .stat{min-height:auto}}.topbar{grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:.75rem;display:grid}.topbar .brand{min-width:0;margin-bottom:0}.topbar .brand strong{min-width:0;line-height:1.2}.nav-toggle{color:#ead79f;min-height:3.35rem;font:inherit;cursor:pointer;background:#2b2414;border:1px solid #5a4720;border-radius:999px;justify-content:center;justify-self:end;align-items:center;gap:.55rem;padding:.75rem 1.1rem;font-size:1.05rem;font-weight:650;display:inline-flex}.nav-toggle svg{color:#d9bf7a;flex:none}.primary-nav{border-radius:var(--radius);background:#15191d;border:1px solid #3b444e;grid-column:1/-1;grid-template-columns:repeat(3,minmax(0,1fr));justify-self:end;gap:.45rem;width:min(100%,780px);max-height:calc(100vh - 6rem);margin:.15rem 0 0;padding:.75rem;display:grid;overflow:auto;box-shadow:0 18px 42px #00000047}.topbar .primary-nav{max-height:calc(100vh - 6rem);overflow:auto}.primary-nav[hidden]{display:none!important}.primary-nav a{color:#d7dde4;white-space:normal;background:#191d21;border:1px solid #2a3036;border-radius:7px;align-items:center;gap:.55rem;min-height:3rem;padding:.68rem .75rem;line-height:1.25;text-decoration:none;display:flex}.primary-nav a svg{color:#9ba8b5;flex:none;width:16px;height:16px}.primary-nav a:hover,.primary-nav a:focus-visible{color:#f4f1e8;background:#22272e;border-color:#555f69}.primary-nav a.active,.primary-nav a[aria-current=page]{color:#ffe3a1;box-shadow:none;background:#2b2414;border-color:#5a4720}@media (width<=860px){.primary-nav{grid-template-columns:repeat(2,minmax(0,1fr));justify-self:stretch;width:100%}}@media (width<=760px){.topbar{grid-template-columns:minmax(0,1fr) auto;gap:.55rem;padding:.65rem .75rem;display:grid}.topbar .brand{margin-bottom:0}.topbar .brand strong{font-size:.94rem}.nav-toggle{min-height:3rem;padding:.62rem .82rem;font-size:.98rem}.primary-nav{grid-template-columns:1fr;max-height:calc(100vh - 5rem);padding:.6rem}.topbar .primary-nav{max-height:calc(100vh - 5rem)}.primary-nav a{min-height:2.85rem;padding:.7rem .75rem}}.shell,.footer-inner{width:min(1450px,100% - 2rem)}.page-home,.page-lessons,.page-labs,.page-walkthroughs,.page-glossary,.page-flashcards{max-width:1450px}.content-stack,.lesson-content{max-width:none}.lesson-rail{width:auto}.primary-nav{width:min(100%,1120px)}@media (width>=1001px){.lesson-page{grid-template-columns:minmax(0,1fr) 320px;display:grid}}@media (width>=1280px){.home-metrics{grid-template-columns:repeat(8,minmax(0,1fr))}.primary-nav{grid-template-columns:repeat(5,minmax(0,1fr))}}@media (width<=760px){.shell,.footer-inner{width:min(100% - 1rem,1450px)}.page-home,.page-lessons,.page-labs,.page-walkthroughs,.page-glossary,.page-flashcards{max-width:none}}:root{--border-neutral:#343b43;--border-neutral-strong:#454d55;--surface-neutral:#191d21;--surface-neutral-alt:#171b1f}.panel,.card,.question,.source-panel,.scenario-card,.domain-card,.lesson-row,.flash,.guide-card,.must-know,.lesson-tracker,.table-wrap,.reference-aid,.avoid-section,.artifact-list div,.lab-notes div,.practice-list,.case-study,.home-hero-copy,.home-status-panel,.home-capability,.home-flow,.home-domain-readiness,.home-op,.primary-nav,.primary-nav a,.nav-toggle{border-color:var(--border-neutral)}.guide-card,.must-know,.scenario-card,.question,.score,.domain-card,.library-list .card,.glossary-list .card,.table-wrap,.lesson-row,.home-hero-copy,.home-status-panel,.home-flow,.home-domain-readiness,.home-op{border-left-width:1px;border-left-color:var(--border-neutral)}.stat,.home-metrics .stat,.home-capability{border-top-width:1px;border-top-color:var(--border-neutral)}.domain-card:nth-child(n),.stat:nth-child(n),.home-metrics .stat:nth-child(n),.home-capability:nth-child(n),.home-op:nth-child(n){border-color:var(--border-neutral);border-left-color:var(--border-neutral);border-top-color:var(--border-neutral)}.domain-card:nth-child(n),.library-list .card:nth-child(n),.glossary-list .card:nth-child(n),.lesson-row,.lesson-row:hover,.lesson-row:focus-within{border-left-width:1px}.stat:nth-child(n),.home-metrics .stat:nth-child(n),.home-capability:nth-child(n){border-top-width:1px}.home-hero-copy,.home-status-panel,.home-capability,.home-flow,.home-domain-readiness,.home-op,.guide-card,.must-know,.scenario-card,.question,.table-wrap,.library-list .card,.glossary-list .card,.home-metrics .stat:nth-child(n),.home-capability:nth-child(n),.home-op:nth-child(n){background:var(--surface-neutral)}.home-flow,.home-domain-readiness{background:var(--surface-neutral)}.nav-toggle,.nav-toggle:hover,.nav-toggle:focus-visible,.nav-open .nav-toggle,.primary-nav a.active,.primary-nav a[aria-current=page],.primary-nav a:hover,.primary-nav a:focus-visible,.home-capability:hover,.home-capability:focus-visible,.home-op:hover,.home-op:focus-visible,.domain-card:hover,.lesson-row:hover,.lesson-row:focus-within,.card:hover,.button:hover,.flash .actions button:hover{border-color:var(--border-neutral-strong)}.badge,.domain-card span,.mock-badges span,.key-terms a,.template-tags code,.action-steps span,.home-flow-step span{border-color:var(--border-neutral)}:root{--bg:#0f1115;--surface:#1a1e24;--surface-2:#252b33;--surface-3:#14171c;--text:#f6f8fb;--muted:#c5ced8;--line:#3b434e;--line-soft:#2b323c;--brand:#9ed8ff;--brand-2:#9ad8b5;--danger:#ffb2ad;--success:#9ad8a6;--warn:#f1d38b;--border-neutral:#3b434e;--border-neutral-strong:#596574;--surface-neutral:#1a1e24;--surface-neutral-alt:#20262e;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}h1,h2,h3,.brand strong,.card h2,.panel h2,.lab-card h2,.question h2,.home-hero-copy h1,.home-capability strong,.home-flow-step strong,.home-op strong{color:#f7f9fc}.page-title p:not(.eyebrow),.lesson-row p,.domain-card p,.card p,.panel p,.muted,.home-lede,.home-section-heading p:not(.eyebrow),.home-capability span,.home-flow-step p,.home-op span,.home-op small,.source-panel span,.reference-aid li{color:var(--muted)}.eyebrow,.lab-notes dt,.tracker-label,.flash button:first-child span{color:#d9e6f2}a,.sources-inline a,.breadcrumbs a,.template-card h3 a,.key-terms a{color:var(--brand)}a:hover,.sources-inline a:hover,.breadcrumbs a:hover,.template-card h3 a:hover,.key-terms a:hover{color:#d8efff}.topbar{border-bottom-color:var(--line);background:#0f1115f7}.skip-link{background:var(--surface-2);border-color:var(--border-neutral-strong);color:var(--text)}.brand{color:var(--text)}.panel,.card,.question,.source-panel,.scenario-card,.domain-card,.lesson-row,.flash,.guide-card,.must-know,.lesson-tracker,.table-wrap,.reference-aid,.avoid-section,.artifact-list div,.lab-notes div,.practice-list,.case-study,.home-hero-copy,.home-status-panel,.home-capability,.home-flow,.home-domain-readiness,.home-op,.primary-nav,.primary-nav a{background:var(--surface);border-color:var(--border-neutral)}.home-hero-copy,.home-status-panel{background:#202733}.home-metrics .stat:nth-child(n),.home-capability:nth-child(n),.home-op:nth-child(n),.mini,.practice-grid div,.practice-link,.prompt-box,.worked-options li{background:var(--surface)}.button,.flash .actions button,.footer-links a{background:var(--surface-2);border-color:var(--border-neutral);color:#eef5fb}.button:hover,.flash .actions button:hover,.footer-links a:hover,.primary-nav a:hover,.primary-nav a:focus-visible,.home-capability:hover,.home-capability:focus-visible,.home-op:hover,.home-op:focus-visible,.domain-card:hover,.lesson-row:hover,.lesson-row:focus-within,.card:hover{border-color:var(--border-neutral-strong);color:#fff;background:#2c333d}.button.primary{color:#101318;background:#f2f5f8;border-color:#f2f5f8}.button.primary:hover{color:#101318;background:#fff;border-color:#fff}.nav-toggle{color:#101318;background:#f2f5f8;border-color:#f2f5f8}.nav-toggle svg{color:#101318}.nav-toggle:hover,.nav-toggle:focus-visible,.nav-open .nav-toggle{color:#101318;background:#fff;border-color:#fff}.primary-nav a.active,.primary-nav a[aria-current=page]{border-color:var(--border-neutral-strong);color:#fff;background:#303843}.primary-nav a.active svg,.primary-nav a[aria-current=page] svg,.primary-nav a svg,.home-capability svg,.stat svg{color:#d8e7f2}.badge,.domain-card span,.mock-badges span,.template-tags code,.action-steps span,.home-flow-step span,.question-counter{border-color:var(--border-neutral);color:#eef5fb;background:#252b33}.score{border-color:var(--border-neutral);color:var(--text);background:#20252c}input,select,.search{border-color:var(--border-neutral);color:var(--text);background:#15191f}.option,button.option{color:#f4f7fa;background:#242a32;border-color:#4b5562}.option-prefix{color:#f4f7fa;background:#15191f;border-color:#4b5562}.option.correct{color:#eefbf1;background:#17311f;border-color:#5e9f6d}.option.wrong{color:#fff1ef;background:#351d1f;border-color:#b96f68}:focus-visible{outline-color:#9ed8ff}.topbar{background:#0f1115}.home-hero-copy{background:#202733}.home-status-panel{background:#1c2929}.home-flow{background:#1d2821}.home-domain-readiness{background:#1d2632}.home-capability:nth-child(4n+1),.home-metrics .stat:nth-child(4n+1),.home-op:nth-child(4n+1){background:#202733}.home-capability:nth-child(4n+2),.home-metrics .stat:nth-child(4n+2),.home-op:nth-child(4n+2){background:#1c2929}.home-capability:nth-child(4n+3),.home-metrics .stat:nth-child(4n+3),.home-op:nth-child(4n+3){background:#1f2921}.home-capability:nth-child(4n),.home-metrics .stat:nth-child(4n),.home-op:nth-child(4n){background:#252335}.guide-card{background:#1c2530}.must-know{background:#1e2a22}.scenario-card{background:#2a221e}.case-study{background:#1d2733}:root{--gh-bg:#0d1117;--gh-panel:#161b22;--gh-panel-2:#21262d;--gh-border:#30363d;--gh-border-strong:#484f58;--gh-text:#f0f6fc;--gh-muted:#b1bac4;--gh-blue:#58a6ff;--gh-green:#3fb950;--gh-yellow:#d29922;--gh-pink:#db61a2;--gh-purple:#a371f7;--gh-cyan:#39c5cf}body{background:var(--gh-bg);color:var(--gh-text)}.topbar{z-index:30;border-bottom-color:var(--gh-border);background:#0d1117;position:sticky;top:0;overflow:visible}.button.primary,.nav-toggle{color:#fff;background:#238636;border-color:#2ea043}.button.primary:hover,.button.primary:focus-visible,.nav-toggle:hover,.nav-toggle:focus-visible,.nav-open .nav-toggle{color:#fff;background:#2ea043;border-color:#3fb950}.nav-toggle{min-width:7.6rem;height:3.35rem}.nav-toggle svg{color:#fff;width:1.65rem;height:1.65rem}.primary-nav{z-index:40;border-color:var(--gh-border);background:#161b22;width:min(1120px,100vw - 2rem);margin:0;position:absolute;top:calc(100% + .45rem);right:clamp(1rem,3vw,2rem)}.primary-nav a{background:#0d1117;border-color:#21262d;border-radius:8px;position:relative}.primary-nav a:hover,.primary-nav a:focus-visible{border-color:var(--gh-border-strong);background:#21262d}.primary-nav a.active,.primary-nav a[aria-current=page]{color:#fff;background:#1f6feb;border-color:#388bfd}.primary-nav a.active svg,.primary-nav a[aria-current=page] svg{color:#fff}.home-dashboard,.home-hero,.home-hero-copy,.home-status-panel,.home-metrics .stat,.home-capability,.home-op{min-width:0}.home-dashboard{padding:.9rem 0 2rem}.home-hero{gap:1rem;margin:.75rem 0 1rem}.home-hero-copy,.home-status-panel,.home-capability,.home-flow,.home-domain-readiness,.home-op,.panel,.card,.question,.source-panel,.scenario-card,.domain-card,.lesson-row,.flash,.guide-card,.must-know,.lesson-tracker,.table-wrap,.reference-aid{background:var(--gh-panel);border-color:var(--gh-border);box-shadow:none}.home-hero-copy{justify-content:flex-start;gap:.85rem;min-height:auto;padding:clamp(1.1rem,2vw,1.45rem);position:relative;overflow:hidden}.home-hero-copy h1{max-width:none;color:var(--gh-text);margin-bottom:.05rem;font-size:clamp(2.35rem,3.25vw,3.45rem);line-height:1.05}.home-lede{max-width:82ch;color:var(--gh-muted);margin-top:.1rem;font-size:1rem;line-height:1.68}.home-agent-flow{grid-template-columns:minmax(0,1.15fr) minmax(230px,.85fr);gap:.75rem;width:100%;max-width:760px;margin:.45rem 0 .05rem;display:grid}.agent-flow-board,.agent-schema-board{border:1px solid var(--gh-border);background:#0d1117;border-radius:8px;min-width:0;padding:.75rem}.agent-flow-title,.agent-schema-title{color:var(--gh-muted);justify-content:space-between;align-items:center;gap:.75rem;margin-bottom:.65rem;font-size:.78rem;display:flex}.agent-flow-title strong,.agent-schema-title strong{color:#e6edf3;font-size:.85rem}.agent-flow-title span,.agent-schema-title span{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.agent-flow-track{align-items:stretch;gap:.38rem;display:flex}.agent-flow-node{background:#161b22;border:1px solid #30363d;border-radius:7px;flex:1 1 0;grid-template-rows:auto auto 1fr;align-content:start;gap:.22rem;min-width:0;padding:.62rem .55rem;display:grid}.agent-flow-node svg{color:var(--widget-accent,var(--gh-blue))}.agent-flow-node span{color:var(--gh-muted);font-size:.7rem;line-height:1.2}.agent-flow-node strong{color:var(--gh-text);font-size:.78rem;line-height:1.2}.agent-flow-node:first-child{--widget-accent:var(--gh-blue)}.agent-flow-node:nth-child(3){--widget-accent:var(--gh-purple)}.agent-flow-node:nth-child(5){--widget-accent:var(--gh-yellow)}.agent-flow-node:nth-child(7){--widget-accent:var(--gh-green)}.agent-flow-node:nth-child(9){--widget-accent:var(--gh-cyan)}.agent-flow-connector{background:#484f58;border-radius:999px;flex:0 0 .9rem;align-self:center;height:2px}.agent-schema-board{gap:.42rem;display:grid}.agent-schema-row{background:#161b22;border:1px solid #30363d;border-radius:7px;grid-template-columns:minmax(72px,.45fr) minmax(0,1fr);align-items:start;gap:.55rem;padding:.48rem .55rem;display:grid}.agent-schema-row code{color:#79c0ff;white-space:nowrap;font-size:.72rem}.agent-schema-row span{color:var(--gh-muted);font-size:.76rem;line-height:1.35}.home-actions{grid-template-columns:repeat(3,minmax(0,1fr));gap:.7rem;margin-top:.45rem;display:grid}.home-actions .button{background:var(--gh-panel-2);border-color:var(--gh-border-strong);color:#e6edf3;border-radius:6px;min-height:2.8rem}.home-actions .button.primary{color:#fff;background:#238636;border-color:#2ea043}.home-actions .button:hover{background:#30363d;border-color:#6e7681}.home-status-panel{gap:1rem;padding:clamp(1.1rem,2vw,1.35rem);position:relative;overflow:hidden}.home-status-panel:after{content:"";background:var(--gh-green);border-radius:999px;width:.72rem;height:.72rem;position:absolute;top:1rem;right:1rem}.home-status-panel h2{font-size:1.16rem}.home-status-list div{border-top-color:#30363d;padding-left:1.45rem;position:relative}.home-status-list div:before{content:"";background:var(--gh-blue);border-radius:999px;width:.62rem;height:.62rem;position:absolute;top:1.05rem;left:.1rem}.home-status-list div:nth-child(2):before{background:var(--gh-green)}.home-status-list div:nth-child(3):before{background:var(--gh-yellow)}.home-status-list div:nth-child(4):before{background:var(--gh-purple)}.home-status-list dd,.home-status-list dd a{color:#e6edf3}.home-metrics{gap:.8rem;margin:1rem 0 1.35rem}.home-metrics .stat{--widget-accent:var(--gh-blue);background:var(--gh-panel);border-color:var(--gh-border);border-radius:8px;grid-template-columns:2.7rem minmax(0,1fr);grid-template-areas:"icon value""icon label";align-items:center;gap:.08rem .78rem;min-height:6.5rem;padding:.9rem .85rem 1.08rem;position:relative;overflow:hidden}.home-metrics .stat:before{content:"";background:var(--widget-accent);border-radius:999px;height:.22rem;position:absolute;bottom:.67rem;left:.85rem;right:.85rem}.home-metrics .stat svg{box-sizing:border-box;background:#0d1117;border:1px solid #30363d;border-radius:999px;grid-area:icon;width:2.45rem;height:2.45rem;padding:.58rem;color:var(--widget-accent)!important}.home-metrics .stat strong{color:var(--gh-text);grid-area:value;font-size:1.55rem;line-height:1}.home-metrics .stat span{color:var(--gh-muted);grid-area:label;font-size:.9rem;line-height:1.25}.home-metrics .stat:nth-child(6n+1){--widget-accent:var(--gh-blue)}.home-metrics .stat:nth-child(6n+2){--widget-accent:var(--gh-green)}.home-metrics .stat:nth-child(6n+3){--widget-accent:var(--gh-yellow)}.home-metrics .stat:nth-child(6n+4){--widget-accent:var(--gh-cyan)}.home-metrics .stat:nth-child(6n+5){--widget-accent:var(--gh-purple)}.home-metrics .stat:nth-child(6n){--widget-accent:var(--gh-pink)}.home-metrics .stat:nth-child(n),.home-capability:nth-child(n),.home-op:nth-child(n){background:var(--gh-panel);border-color:var(--gh-border)}.home-section-heading{justify-content:space-between;align-items:end;gap:1rem;max-width:none;padding:.15rem 0;display:flex}.home-section-heading h2{max-width:700px}.home-section-heading p:not(.eyebrow){max-width:620px;color:var(--gh-muted)}.home-capability{--widget-accent:var(--gh-blue);background:var(--gh-panel);border-radius:8px;grid-template-rows:auto 1fr;grid-template-columns:2.75rem minmax(0,1fr);gap:.38rem .78rem;min-height:10.25rem;padding:1rem 1rem 1.35rem;position:relative;overflow:hidden}.home-capability:before{content:"";background:var(--widget-accent);border-radius:999px;height:.22rem;position:absolute;bottom:.85rem;left:1rem;right:1rem}.home-capability:after{content:"";background:var(--widget-accent);border-radius:999px;width:1.65rem;height:.5rem;position:absolute;top:1rem;right:1rem}.home-capability svg{box-sizing:border-box;background:#0d1117;border:1px solid #30363d;border-radius:999px;grid-row:1/span 2;width:2.45rem;height:2.45rem;padding:.58rem;color:var(--widget-accent)!important}.home-capability strong{color:var(--gh-text);align-self:end;line-height:1.2}.home-capability span{color:var(--gh-muted);align-self:start;line-height:1.48}.home-capability:nth-child(4n+1){--widget-accent:var(--gh-blue)}.home-capability:nth-child(4n+2){--widget-accent:var(--gh-green)}.home-capability:nth-child(4n+3){--widget-accent:var(--gh-yellow)}.home-capability:nth-child(4n){--widget-accent:var(--gh-purple)}.home-capability:hover,.home-capability:focus-visible,.home-op:hover,.home-op:focus-visible{border-color:var(--gh-border-strong);background:#1c2128;transform:none}.home-flow,.home-domain-readiness{border-radius:8px}.home-flow-step{border-top-color:#30363d;grid-template-columns:2.15rem minmax(0,1fr);padding:.82rem 2rem .82rem 0;position:relative}.home-flow-step:after{content:">";color:var(--gh-green);font-weight:900;position:absolute;top:50%;right:.35rem;transform:translateY(-50%)}.home-flow-step span{color:var(--gh-green);background:#0d1117;border-color:#30363d}.home-flow-step:hover,.home-flow-step:focus-visible{background:#1c2128;border-radius:8px;padding-left:.55rem}.home-domain-readiness .progress{--meter-accent:var(--gh-blue)}.home-domain-readiness .progress:nth-of-type(2){--meter-accent:var(--gh-green)}.home-domain-readiness .progress:nth-of-type(3){--meter-accent:var(--gh-yellow)}.home-domain-readiness .progress:nth-of-type(4){--meter-accent:var(--gh-purple)}.home-domain-readiness .progress:nth-of-type(5){--meter-accent:var(--gh-cyan)}.home-domain-readiness .progress:nth-of-type(6){--meter-accent:var(--gh-pink)}.home-status-panel .progress{--meter-accent:var(--gh-green)}.progress meter{height:.7rem;accent-color:var(--meter-accent,var(--gh-blue));background:#0d1117;border:1px solid #30363d;border-radius:999px;overflow:hidden}.progress meter::-webkit-meter-bar{background:#0d1117;border:0;border-radius:999px}.progress meter::-webkit-meter-optimum-value{background:var(--meter-accent,var(--gh-blue));border-radius:999px}.progress meter::-webkit-meter-suboptimum-value{background:var(--meter-accent,var(--gh-blue));border-radius:999px}.progress meter::-webkit-meter-even-less-good-value{background:var(--gh-pink);border-radius:999px}.progress meter::-moz-meter-bar{background:var(--meter-accent,var(--gh-blue));border-radius:999px}.home-ops-grid{gap:.8rem}.home-op{--widget-accent:var(--gh-blue);background:var(--gh-panel);border-radius:8px;min-height:7rem;padding:1rem 2.6rem 1rem 1rem;position:relative}.home-op:before{content:"";background:var(--widget-accent);border-radius:999px;width:1.7rem;height:.52rem;position:absolute;top:1rem;right:1rem}.home-op:after{content:">";color:var(--widget-accent);font-weight:900;position:absolute;bottom:.95rem;right:1rem}.home-op:nth-child(4n+1){--widget-accent:var(--gh-green)}.home-op:nth-child(4n+2){--widget-accent:var(--gh-yellow)}.home-op:nth-child(4n+3){--widget-accent:var(--gh-purple)}.home-op:nth-child(4n){--widget-accent:var(--gh-blue)}.home-op span,.home-op small{color:var(--gh-muted)}.home-op strong{color:var(--gh-text);font-size:1.1rem;line-height:1.15}.button,.flash .actions button,.footer-links a{border-radius:6px}.eyebrow{color:#8b949e;letter-spacing:.06em}@media (width<=980px){.home-actions{grid-template-columns:1fr}.home-section-heading{display:block}.home-agent-flow{max-width:100%}}@media (width<=760px){.topbar{flex-wrap:wrap;justify-content:space-between;align-items:center;width:100%;max-width:100%;display:flex;overflow:visible}.topbar .brand{flex:auto;min-width:0;margin-bottom:0}.topbar .brand strong{white-space:nowrap;text-overflow:ellipsis;font-size:.9rem;overflow:hidden}.nav-toggle{flex:0 0 3rem;width:3rem;min-width:3rem;height:3rem;margin-left:.55rem;padding:0;display:inline-flex}.nav-toggle span{display:none}.topbar .primary-nav{flex:initial;width:auto;max-height:calc(100vh - 5rem);position:absolute;top:calc(100% + .45rem);left:.75rem;right:.75rem}.home-dashboard{padding:.45rem 0 1.2rem}.home-hero-copy{gap:.65rem;padding:1rem}.home-hero-copy h1{font-size:2rem}.home-agent-flow{grid-template-columns:1fr;gap:.55rem;width:100%;max-width:100%}.agent-flow-board,.agent-schema-board{padding:.58rem}.agent-flow-track{grid-template-columns:1fr;gap:.32rem;display:grid}.agent-flow-connector{flex-basis:auto;justify-self:center;width:2px;height:.68rem;min-height:.68rem}.agent-flow-node{grid-template-rows:auto auto;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:.1rem .55rem}.agent-flow-node svg{grid-row:1/span 2}.home-metrics .stat,.home-capability{min-height:auto}.home-flow-step:hover,.home-flow-step:focus-visible{padding-left:.45rem}}.shell:not(.page-home){padding-top:1.05rem}.shell:not(.page-home) .page-title{background:#161b22;border:1px solid #30363d;border-left:4px solid #58a6ff;border-radius:8px;grid-template-columns:auto minmax(0,1fr);align-items:start;gap:1rem;margin:.8rem 0 1rem;padding:1rem 1.1rem;display:grid}.page-title-icon{color:#58a6ff;background:#0d1117;border:1px solid #30363d;border-radius:8px;place-items:center;width:2.75rem;height:2.75rem;display:inline-grid}.shell:not(.page-home) .page-title h1{color:#f0f6fc;margin:.1rem 0 .35rem;font-size:clamp(1.65rem,2.15vw,2.45rem);font-weight:650}.shell:not(.page-home) .page-title p:not(.eyebrow){color:#b1bac4;max-width:86ch;line-height:1.62}.shell:not(.page-home) .eyebrow{color:#8b949e;letter-spacing:.06em;text-transform:uppercase}.shell:not(.page-home) .panel,.shell:not(.page-home) .card,.shell:not(.page-home) .question,.shell:not(.page-home) .source-panel,.shell:not(.page-home) .scenario-card,.shell:not(.page-home) .domain-card,.shell:not(.page-home) .lesson-row,.shell:not(.page-home) .flash,.shell:not(.page-home) .guide-card,.shell:not(.page-home) .must-know,.shell:not(.page-home) .lesson-tracker,.shell:not(.page-home) .table-wrap,.shell:not(.page-home) .reference-aid,.shell:not(.page-home) .case-study{box-shadow:none;background:#161b22;border:1px solid #30363d;border-radius:8px;position:relative;overflow:hidden}.shell:not(.page-home) .panel:before,.shell:not(.page-home) .card:before,.shell:not(.page-home) .question:before,.shell:not(.page-home) .guide-card:before,.shell:not(.page-home) .must-know:before,.shell:not(.page-home) .lesson-tracker:before,.shell:not(.page-home) .source-panel:before,.shell:not(.page-home) .table-wrap:before,.shell:not(.page-home) .domain-card:before,.shell:not(.page-home) .lab-card:before{content:"";background:var(--surface-accent,#58a6ff);height:3px;position:absolute;top:0;left:0;right:0}.shell:not(.page-home) .panel:nth-of-type(4n+1),.shell:not(.page-home) .card:nth-of-type(4n+1),.shell:not(.page-home) .domain-card:nth-child(4n+1){--surface-accent:#58a6ff}.shell:not(.page-home) .panel:nth-of-type(4n+2),.shell:not(.page-home) .card:nth-of-type(4n+2),.shell:not(.page-home) .domain-card:nth-child(4n+2){--surface-accent:#3fb950}.shell:not(.page-home) .panel:nth-of-type(4n+3),.shell:not(.page-home) .card:nth-of-type(4n+3),.shell:not(.page-home) .domain-card:nth-child(4n+3){--surface-accent:#d29922}.shell:not(.page-home) .panel:nth-of-type(4n),.shell:not(.page-home) .card:nth-of-type(4n),.shell:not(.page-home) .domain-card:nth-child(4n){--surface-accent:#a371f7}.shell:not(.page-home) .guide-card{--surface-accent:#3fb950}.shell:not(.page-home) .must-know{--surface-accent:#d29922;background:#171b1f}.shell:not(.page-home) .scenario-card{--surface-accent:#a371f7;background:#161b22;border-left:1px solid #30363d}.shell:not(.page-home) .source-panel,.shell:not(.page-home) .lesson-tracker{--surface-accent:#39c5cf}.shell:not(.page-home) .panel h2,.shell:not(.page-home) .card h2,.shell:not(.page-home) .guide-card h2,.shell:not(.page-home) .must-know h2,.shell:not(.page-home) .source-panel h3,.shell:not(.page-home) .lesson-tracker h2,.shell:not(.page-home) .table-wrap h2{color:#f0f6fc;font-weight:620}.shell:not(.page-home) .panel h2:before,.shell:not(.page-home) .card h2:before,.shell:not(.page-home) .guide-card h2:before,.shell:not(.page-home) .must-know h2:before,.shell:not(.page-home) .source-panel h3:before,.shell:not(.page-home) .lesson-tracker h2:before,.shell:not(.page-home) .table-wrap h2:before{content:"";background:var(--surface-accent,#58a6ff);vertical-align:.08rem;border-radius:999px;width:.58rem;height:.58rem;margin-right:.48rem;display:inline-block}.shell:not(.page-home) .stats,.shell:not(.page-home) .cards,.shell:not(.page-home) .domain-grid,.shell:not(.page-home) .flash-grid,.shell:not(.page-home) .domain-strip{gap:.85rem}.shell:not(.page-home) .stat,.shell:not(.page-home) .mini,.shell:not(.page-home) .lesson-summary-list div{background:#161b22;border:1px solid #30363d;border-radius:8px;padding:.9rem;position:relative;overflow:hidden}.shell:not(.page-home) .stat:before,.shell:not(.page-home) .mini:before,.shell:not(.page-home) .lesson-summary-list div:before{content:"";background:var(--metric-accent,#58a6ff);border-radius:999px;height:.2rem;position:absolute;bottom:.65rem;left:.85rem;right:.85rem}.shell:not(.page-home) .stat:nth-child(4n+1),.shell:not(.page-home) .mini:nth-child(4n+1),.shell:not(.page-home) .lesson-summary-list div:nth-child(4n+1){--metric-accent:#58a6ff}.shell:not(.page-home) .stat:nth-child(4n+2),.shell:not(.page-home) .mini:nth-child(4n+2),.shell:not(.page-home) .lesson-summary-list div:nth-child(4n+2){--metric-accent:#3fb950}.shell:not(.page-home) .stat:nth-child(4n+3),.shell:not(.page-home) .mini:nth-child(4n+3),.shell:not(.page-home) .lesson-summary-list div:nth-child(4n+3){--metric-accent:#d29922}.shell:not(.page-home) .stat:nth-child(4n),.shell:not(.page-home) .mini:nth-child(4n),.shell:not(.page-home) .lesson-summary-list div:nth-child(4n){--metric-accent:#a371f7}.shell:not(.page-home) .stat svg{box-sizing:border-box;width:2.35rem;height:2.35rem;color:var(--metric-accent,#58a6ff);background:#0d1117;border:1px solid #30363d;border-radius:999px;padding:.55rem}.shell:not(.page-home) .stat strong,.shell:not(.page-home) .mini strong,.shell:not(.page-home) .lesson-summary-list dd{color:#f0f6fc;font-size:1.45rem;font-weight:650}.shell:not(.page-home) .stat span,.shell:not(.page-home) .mini span,.shell:not(.page-home) .mini small,.shell:not(.page-home) .lesson-summary-list dt{color:#b1bac4}.shell:not(.page-home) .domain-card,.shell:not(.page-home) .template-card,.shell:not(.page-home) .lab-card,.shell:not(.page-home) .walkthrough{flex-direction:column;gap:.55rem;display:flex}.shell:not(.page-home) .domain-card:hover,.shell:not(.page-home) .lesson-row:hover,.shell:not(.page-home) .card:hover,.shell:not(.page-home) .practice-list a:hover{background:#1c2128;border-color:#484f58}.shell:not(.page-home) .badge,.shell:not(.page-home) .domain-card span,.shell:not(.page-home) .mock-badges span,.shell:not(.page-home) .template-tags code,.shell:not(.page-home) .question-counter{color:#79c0ff;background:#0d1117;border:1px solid #30363d;border-radius:999px}.shell:not(.page-home) .lesson-list{gap:.7rem}.shell:not(.page-home) .lesson-row{grid-template-columns:auto minmax(0,1fr) auto;gap:.85rem;padding:.9rem 1rem .9rem 1.15rem}.shell:not(.page-home) .lesson-row:before{content:"";background:#58a6ff;border-radius:999px;width:3px;position:absolute;top:.75rem;bottom:.75rem;left:0}.shell:not(.page-home) .lesson-row input{accent-color:#3fb950}.shell:not(.page-home) .lesson-row strong{color:#f0f6fc}.shell:not(.page-home) .lesson-row p{color:#b1bac4}.shell:not(.page-home) .toolbar{background:#161b22;border:1px solid #30363d;border-radius:8px;padding:.75rem}.shell:not(.page-home) .search,.shell:not(.page-home) .filter-control,.shell:not(.page-home) select{border-color:#30363d}.shell:not(.page-home) .steps{counter-reset:guided-step;gap:.65rem;margin:.9rem 0 0;padding:0;list-style:none;display:grid;position:relative}.shell:not(.page-home) .steps li{counter-increment:guided-step;color:#dbe3ec;background:#0d1117;border:1px solid #30363d;border-radius:8px;min-height:2.25rem;padding:.55rem .75rem .55rem 3rem;position:relative}.shell:not(.page-home) .steps li:before{content:counter(guided-step);color:#fff;background:#238636;border:1px solid #2ea043;border-radius:999px;place-items:center;width:1.75rem;height:1.75rem;font-weight:700;display:inline-grid;position:absolute;top:.5rem;left:.65rem}.shell:not(.page-home) .action-section{background:#161b22;border:1px solid #30363d;border-left:4px solid #58a6ff;border-radius:8px;margin:1.15rem 0;padding:1rem;position:relative}.shell:not(.page-home) .action-section .eyebrow{color:#79c0ff}.shell:not(.page-home) .action-steps li,.shell:not(.page-home) .artifact-list div,.shell:not(.page-home) .lab-notes div,.shell:not(.page-home) .worked-options li,.shell:not(.page-home) .reference-aid{background:#0d1117;border-color:#30363d}.shell:not(.page-home) .lesson-content>h2{color:#f0f6fc;border-top:1px solid #30363d;margin:1.35rem 0 .65rem;padding-top:1rem;font-weight:650}.shell:not(.page-home) .lesson-content>h2:before{content:"";vertical-align:.08rem;background:#58a6ff;border-radius:2px;width:.58rem;height:.58rem;margin-right:.45rem;display:inline-block}.shell:not(.page-home) .lesson-content>p{color:#c9d1d9;max-width:82ch}.shell:not(.page-home) .practice-list{gap:.55rem;padding:0;list-style:none;display:grid}.shell:not(.page-home) .practice-list a{color:#dbe3ec;background:#161b22;border:1px solid #30363d;border-radius:8px;gap:.25rem;padding:.8rem .9rem;text-decoration:none;display:grid}.shell:not(.page-home) .practice-list span{color:#79c0ff;background:#0d1117;border:1px solid #30363d;border-radius:999px;width:max-content;padding:.2rem .5rem;font-size:.78rem;font-weight:700}.shell:not(.page-home) .question{--surface-accent:#58a6ff;padding:1.05rem 1.1rem}.shell:not(.page-home) .options-list{gap:.55rem;display:grid}.shell:not(.page-home) .option{color:#dbe3ec;background:#0d1117;border-color:#30363d;border-radius:8px}.shell:not(.page-home) .option-prefix{color:#79c0ff;background:#161b22;border-color:#30363d}.shell:not(.page-home) .feedback{background:#0d1117;border:1px solid #30363d;border-radius:8px;margin-top:.9rem;padding:.85rem}.shell:not(.page-home) .table-wrap{padding:1rem}.shell:not(.page-home) th{color:#f0f6fc;background:#0d1117}.shell:not(.page-home) td{color:#c9d1d9;background:#161b22}.shell:not(.page-home) .source-panel a{border-top-color:#30363d;padding:.8rem 0}.shell:not(.page-home) .mock-screen{background:#0d1117;border-color:#30363d}.shell:not(.page-home) .mock-top{background:#161b22;border-bottom:1px solid #30363d}.shell:not(.page-home) .flash button:first-child{background:#0d1117;border:1px solid #30363d;border-radius:8px}.shell:not(.page-home) .flash .actions{padding:.8rem}@media (width<=760px){.shell:not(.page-home){padding-top:.65rem}.shell:not(.page-home) .page-title{grid-template-columns:1fr;gap:.7rem;padding:.9rem}.page-title-icon{width:2.35rem;height:2.35rem}.shell:not(.page-home) .lesson-row{grid-template-columns:auto minmax(0,1fr);padding:.85rem}.shell:not(.page-home) .lesson-row .badge{grid-column:2}.shell:not(.page-home) .toolbar{display:grid}.shell:not(.page-home) .action-section{padding:.85rem}.shell:not(.page-home) .steps li{padding-right:.65rem}}.shell:not(.page-home) .page-title{border-left:1px solid #30363d;box-shadow:inset 0 1px #21262d}.shell:not(.page-home) .panel:before,.shell:not(.page-home) .card:before,.shell:not(.page-home) .question:before,.shell:not(.page-home) .guide-card:before,.shell:not(.page-home) .must-know:before,.shell:not(.page-home) .lesson-tracker:before,.shell:not(.page-home) .source-panel:before,.shell:not(.page-home) .table-wrap:before,.shell:not(.page-home) .domain-card:before,.shell:not(.page-home) .lab-card:before,.shell:not(.page-home) .stat:before,.shell:not(.page-home) .mini:before,.shell:not(.page-home) .lesson-summary-list div:before,.shell:not(.page-home) .lesson-row:before{display:none}.shell:not(.page-home) .panel,.shell:not(.page-home) .card,.shell:not(.page-home) .question,.shell:not(.page-home) .guide-card,.shell:not(.page-home) .must-know,.shell:not(.page-home) .source-panel,.shell:not(.page-home) .lesson-tracker,.shell:not(.page-home) .domain-card,.shell:not(.page-home) .lesson-row,.shell:not(.page-home) .flash,.shell:not(.page-home) .table-wrap,.shell:not(.page-home) .reference-aid,.shell:not(.page-home) .case-study{border-color:#30363d}.shell:not(.page-home) .panel h2,.shell:not(.page-home) .card h2,.shell:not(.page-home) .guide-card h2,.shell:not(.page-home) .must-know h2,.shell:not(.page-home) .source-panel h3,.shell:not(.page-home) .lesson-tracker h2,.shell:not(.page-home) .table-wrap h2,.shell:not(.page-home) .lesson-content>h2{border-bottom:1px solid #30363d;padding-bottom:.45rem}.shell:not(.page-home) .panel h2:before,.shell:not(.page-home) .card h2:before,.shell:not(.page-home) .guide-card h2:before,.shell:not(.page-home) .must-know h2:before,.shell:not(.page-home) .source-panel h3:before,.shell:not(.page-home) .lesson-tracker h2:before,.shell:not(.page-home) .table-wrap h2:before,.shell:not(.page-home) .lesson-content>h2:before{background:#8b949e;border-radius:2px}.shell:not(.page-home) a:not(.button):not(.brand){color:#79c0ff;text-underline-offset:.18em;-webkit-text-decoration:underline #79c0ff8c;text-decoration:underline #79c0ff8c;text-decoration-thickness:.08em}.shell:not(.page-home) a:not(.button):not(.brand):hover{color:#a5d6ff;text-decoration-color:#a5d6ff}.shell:not(.page-home) .badge,.shell:not(.page-home) .domain-card span,.shell:not(.page-home) .mock-badges span,.shell:not(.page-home) .template-tags code,.shell:not(.page-home) .question-counter{color:#c9d1d9;background:#0d1117;border-color:#30363d}.shell:not(.page-home) .stat svg{color:#79c0ff}.shell:not(.page-home) .lesson-row{border-left:1px solid #30363d}.shell:not(.page-home) .lesson-row:hover,.shell:not(.page-home) .domain-card:hover,.shell:not(.page-home) .card:hover,.shell:not(.page-home) .practice-list a:hover{background:#1c2128;border-color:#6e7681}.shell:not(.page-home) .option.selected{color:#e6f2ff;background:#1f2937;border-color:#58a6ff}.shell:not(.page-home) .option.correct{color:#dff8e6;background:#17301f;border-color:#3fb950}.shell:not(.page-home) .option.wrong{color:#ffe1df;background:#331d1d;border-color:#ff7b72}.shell:not(.page-home) .option.correct .option-prefix{color:#dff8e6;border-color:#3fb950}.shell:not(.page-home) .option.wrong .option-prefix{color:#ffe1df;border-color:#ff7b72}.course-steps{background:#161b22;border:1px solid #30363d;border-radius:8px;grid-template-columns:repeat(6,minmax(0,1fr));gap:.5rem;margin:.9rem 0 1rem;padding:.65rem;display:grid}.course-step{color:#c9d1d9;background:#0d1117;border:1px solid #30363d;border-radius:7px;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:.55rem;min-height:3.25rem;padding:.55rem .62rem;display:grid;text-decoration:none!important}.course-step:hover{color:#f0f6fc;background:#1c2128;border-color:#6e7681}.course-step-icon{color:#8b949e;background:#161b22;border:1px solid #30363d;border-radius:999px;place-items:center;width:1.9rem;height:1.9rem;display:inline-grid}.course-step-text{gap:.05rem;min-width:0;display:grid}.course-step-text small{color:#8b949e;text-transform:uppercase;letter-spacing:.06em;font-size:.68rem}.course-step-text strong{color:inherit;text-overflow:ellipsis;white-space:nowrap;font-size:.9rem;line-height:1.15;overflow:hidden}.course-step.is-complete .course-step-icon{color:#dff8e6;background:#17301f;border-color:#3fb950}.course-step.is-current{border-color:#58a6ff;box-shadow:inset 0 0 0 1px #58a6ff59}.course-step.is-current .course-step-icon{color:#c9e3ff;background:#10233d;border-color:#58a6ff}.course-step.is-next{opacity:.82}.question-meta{flex-wrap:wrap;align-items:center;gap:.5rem;display:flex}.shell:not(.page-home) .badge.difficulty-badge,.shell:not(.page-home) .badge.lab-level-badge{border-radius:999px;align-items:center;width:max-content;max-width:100%;font-weight:750;text-decoration:none;display:inline-flex}.shell:not(.page-home) .badge.difficulty-badge.level-foundation{color:#dff8e6;background:#17301f;border-color:#3fb950}.shell:not(.page-home) .badge.difficulty-badge.level-applied{color:#c9e3ff;background:#10233d;border-color:#58a6ff}.shell:not(.page-home) .badge.difficulty-badge.level-advanced{color:#ffe8b0;background:#332a12;border-color:#d29922}.shell:not(.page-home) .badge.difficulty-badge.level-scenario{color:#eadcff;background:#271b3f;border-color:#a371f7}.shell:not(.page-home) .badge.lab-level-badge.level-standard-lab{color:#c9d1d9;background:#161b22;border-color:#6e7681}.shell:not(.page-home) .badge.lab-level-badge.level-gold-lesson-lab{color:#ffe8b0;background:#332a12;border-color:#d29922}.shell:not(.page-home) .badge.lab-level-badge.level-advanced-practice{color:#c9e3ff;background:#10233d;border-color:#58a6ff}.shell:not(.page-home) .badge.lab-level-badge.level-capstone-project{color:#eadcff;background:#271b3f;border-color:#a371f7}@media (width<=980px){.course-steps{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (width<=560px){.course-steps{grid-template-columns:repeat(2,minmax(0,1fr));justify-content:stretch;gap:.5rem;padding:.55rem;display:grid;overflow:visible}.course-step{min-width:0;min-height:3rem;padding:.52rem}.course-step-icon{width:1.75rem;height:1.75rem}.course-step-text small{font-size:.62rem}.course-step-text strong{white-space:normal;font-size:.86rem}}.shell,.footer-inner{width:min(1450px,100% - 2rem)}.lesson-context-strip{background:#161b22;border:1px solid #30363d;border-radius:8px;flex-wrap:wrap;gap:.5rem;margin:-.35rem 0 1rem;padding:.7rem;display:flex}.context-chip{color:#c9d1d9;background:#0d1117;border:1px solid #30363d;border-radius:999px;align-items:center;width:max-content;max-width:100%;min-height:1.8rem;padding:.3rem .62rem;font-size:.78rem;font-weight:750;line-height:1.2;text-decoration:none;display:inline-flex}.context-chip-wide{white-space:normal;max-width:min(100%,48rem)}.context-chip-quiz{color:#c9e3ff;background:#10233d}.context-chip-lab{color:#dff8e6;background:#17301f}.domain-color-domain-1{color:#c9e3ff;background:#10233d}.domain-color-domain-2{color:#dff8e6;background:#17301f}.domain-color-domain-3{color:#ffe8b0;background:#332a12}.domain-color-domain-4{color:#eadcff;background:#271b3f}.domain-color-domain-5{color:#d8e8ff;background:#1f2b35}.domain-color-domain-6{color:#ffe1df;background:#331d1d}.page-lessons>section>.lesson-list{grid-template-columns:repeat(auto-fit,minmax(min(100%,34rem),1fr));align-items:start;gap:.85rem}.shell:not(.page-home) .lesson-row{grid-template-columns:1.35rem minmax(0,1fr) max-content;align-items:start;gap:1rem;padding:1rem}.lesson-row-main{gap:.45rem;min-width:0;display:grid}.lesson-row-title{width:max-content;max-width:100%;line-height:1.35;display:inline-flex}.lesson-row-title strong{white-space:normal}.shell:not(.page-home) .lesson-row p{color:#c9d1d9;max-width:92ch;margin:0;line-height:1.56}.lesson-row-meta{flex-wrap:wrap;gap:.38rem;margin-top:.1rem;display:flex}.lesson-row-meta .context-chip{min-height:1.55rem;padding:.24rem .5rem;font-size:.72rem}.lesson-page{grid-template-columns:minmax(0,1fr) minmax(320px,360px);align-items:start;gap:1.15rem;display:grid}.lesson-content{min-width:0;max-width:none}.lesson-content.lesson{gap:.95rem;display:grid}.lesson-rail{gap:1rem;width:auto;display:grid;position:sticky;top:5.4rem}.lesson-tracker,.lesson-rail .source-panel{margin:0;position:static}.lesson-actions{justify-content:flex-start;margin:0}.lesson-content .guide-card,.lesson-content .must-know,.lesson-content .scenario-card,.lesson-content .case-study,.lesson-content .embedded-practice,.lesson-content .action-section,.lesson-content .table-wrap,.lesson-content .practice-list{max-width:98ch}.shell:not(.page-home) .lesson-content>h2{color:#f0f6fc;background:#0d1117;border:1px solid #30363d;border-radius:8px;align-items:center;gap:.5rem;width:100%;max-width:98ch;margin:1.15rem 0 .1rem;padding:.72rem .85rem;display:flex}.shell:not(.page-home) .lesson-content>h2:before{background:#58a6ff;border-radius:3px;flex:none;width:.62rem;height:.62rem;margin:0}.shell:not(.page-home) .lesson-content>p,.shell:not(.page-home) .lesson-content>ol,.shell:not(.page-home) .lesson-content>ul{max-width:92ch}.shell:not(.page-home) .action-section{background:#161b22;border-left:1px solid #30363d}.shell:not(.page-home) .topic-specific{background:#121d2b}.shell:not(.page-home) .practical-lab-task{background:#11231a}.shell:not(.page-home) .worked-question{background:#1d182b}.shell:not(.page-home) .config-example{background:#151c24}.shell:not(.page-home) .avoid-section{background:#2a1717}.shell:not(.page-home) .guide-card{background:#121d2b}.shell:not(.page-home) .must-know{background:#221f13}.shell:not(.page-home) .scenario-card{background:#1d182b}.lesson-summary-list{grid-template-columns:repeat(3,minmax(0,1fr));gap:.7rem;margin:.2rem 0;display:grid}.shell:not(.page-home) .lesson-summary-list div{border-color:#30363d}.shell:not(.page-home) .lesson-summary-list div:first-child{background:#10233d}.shell:not(.page-home) .lesson-summary-list div:nth-child(2){background:#17301f}.shell:not(.page-home) .lesson-summary-list div:nth-child(3){background:#271b3f}.shell:not(.page-home) .lesson-summary-list dd{color:#f0f6fc}.shell:not(.page-home) .practice-list a{background:#0d1117}.shell:not(.page-home) .practice-list a:hover{background:#1c2128}.shell:not(.page-home) .source-panel a{border-top-color:#30363d}.shell:not(.page-home) .source-panel a:first-of-type{border-top:0}@media (width<=1100px){.lesson-page{grid-template-columns:1fr}.lesson-rail{position:static}.lesson-content .guide-card,.lesson-content .must-know,.lesson-content .scenario-card,.lesson-content .case-study,.lesson-content .embedded-practice,.lesson-content .action-section,.lesson-content .table-wrap,.lesson-content .practice-list{max-width:none}}@media (width<=760px){.shell,.footer-inner{width:min(100% - 1rem,1450px)}.lesson-context-strip{gap:.4rem;padding:.6rem}.context-chip{width:auto;max-width:100%}.page-lessons>section>.lesson-list{grid-template-columns:1fr}.shell:not(.page-home) .lesson-row{grid-template-columns:1.25rem minmax(0,1fr);gap:.75rem;padding:.85rem}.shell:not(.page-home) .lesson-row .difficulty-badge{grid-column:2}.lesson-summary-list{grid-template-columns:1fr}}.shell:not(.page-home) .page-title p:not(.eyebrow){color:#d0d7de;line-height:1.72}.shell:not(.page-home) .lesson-content p,.shell:not(.page-home) .lesson-content li,.shell:not(.page-home) .action-section p,.shell:not(.page-home) .action-section li,.shell:not(.page-home) .guide-card p,.shell:not(.page-home) .must-know li,.shell:not(.page-home) .scenario-card p,.shell:not(.page-home) .case-study dd,.shell:not(.page-home) .practice-list a,.shell:not(.page-home) .lesson-row p{color:#e1e8f0;line-height:1.78}.shell:not(.page-home) .lesson-content p,.shell:not(.page-home) .action-section p,.shell:not(.page-home) .guide-card p,.shell:not(.page-home) .scenario-card p{margin-top:.72rem}.shell:not(.page-home) .muted,.shell:not(.page-home) .source-panel span,.shell:not(.page-home) .lesson-meta dt,.shell:not(.page-home) .lesson-summary-list dt,.shell:not(.page-home) .lesson-row-meta .context-chip:not([class*=domain-color]){color:#c3ccd7}.shell:not(.page-home) .steps{gap:.8rem}.shell:not(.page-home) .steps li{color:#e1e8f0;padding:.72rem .85rem .72rem 3.15rem;line-height:1.68}.shell:not(.page-home) .steps li:before{top:.72rem}.shell:not(.page-home) .action-steps{gap:.9rem}.shell:not(.page-home) .action-steps li{gap:.85rem}.shell:not(.page-home) .action-steps p{color:#e1e8f0;line-height:1.72}@media (width<=760px){.breadcrumbs ol{gap:.4rem;font-size:.92rem;display:grid}.breadcrumbs li{min-width:0;display:block}.breadcrumbs li+li:before{display:none}.breadcrumbs a,.breadcrumbs li[aria-current=page]{line-height:1.55;display:inline}}@media (width<=360px){.course-steps{grid-template-columns:1fr}}.case-study-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,24rem),1fr))}.case-study-card{color:inherit;flex-direction:column;gap:.65rem;text-decoration:none;display:flex}.case-study-card p{color:#e1e8f0;line-height:1.65}.case-study-meta{grid-template-columns:repeat(3,minmax(0,1fr));gap:.55rem;margin:auto 0 0;padding-top:.7rem;display:grid}.case-study-meta div{background:#0d1117;border:1px solid #30363d;border-radius:8px;padding:.65rem}.case-study-meta dt{color:#c3ccd7;font-size:.78rem}.case-study-meta dd{color:#f0f6fc;margin:0;font-weight:700}.case-study-detail .grid.two{align-items:start}.case-question-stack{gap:1rem;margin:1rem 0;display:grid}.case-options{gap:.55rem;margin:.8rem 0 0;padding:0;list-style:none;display:grid}.case-options li{background:#0d1117;border:1px solid #30363d;border-radius:8px;grid-template-columns:auto minmax(0,1fr);gap:.6rem;padding:.72rem .8rem;display:grid}.case-options li span{color:#79c0ff;background:#161b22;border:1px solid #30363d;border-radius:8px;place-items:center;width:1.85rem;height:1.85rem;font-weight:750;display:inline-grid}.case-options li p{color:#e1e8f0;margin:0;line-height:1.58}.case-options .correct-option{background:#17301f;border-color:#3fb950}.case-options .correct-option span{color:#dff8e6;border-color:#3fb950}.case-feedback{gap:.65rem;display:grid}.case-feedback p{margin:0}.case-product-behavior,.case-tempting{border-radius:8px;padding:.75rem .85rem;line-height:1.65}.case-product-behavior{color:#d8ecff;background:#10243a}.case-tempting{color:#ffe8bf;background:#2b2112}.case-product-behavior strong,.case-tempting strong{color:#f0f6fc}@media (width<=760px){.case-study-meta,.case-options li{grid-template-columns:1fr}.case-options li span{width:max-content;padding:0 .55rem}}