:root{color-scheme:dark;--ink:#08131b;--surface:#0d1b24;--surface-2:#112631;--line:rgba(185,223,215,.18);--muted:#9ab0b5;--text:#f2f8f7;--mint:#78e0c5;--amber:#f5b86a;--rose:#df8bb2;--violet:#ad96f4;--sans:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--serif:Georgia,"Times New Roman",serif}*{box-sizing:border-box}html{background:var(--ink);scroll-behavior:smooth}body{margin:0;background:var(--ink);color:var(--text);font-family:var(--sans);font-size:15px;line-height:1.55}.skip-link{position:absolute;left:-10000px;top:12px;background:var(--mint);color:#07120f;padding:8px 12px;z-index:100}.skip-link:focus{left:12px}.site-header{position:sticky;top:0;z-index:80;background:rgba(8,19,27,.86);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.site-header-inner{max-width:1240px;margin:auto;min-height:72px;padding:0 28px;display:flex;align-items:center;justify-content:space-between;gap:24px}.site-logo{display:inline-flex;align-items:center;gap:9px;color:#fff;text-decoration:none;font-weight:850;letter-spacing:-.04em;font-size:23px}.site-logo span{display:grid;place-items:center;width:31px;height:31px;border-radius:10px;background:var(--mint);color:#07120f;font-size:21px}.site-primary{display:flex;align-items:center;gap:22px;white-space:nowrap}.site-primary a{color:#bed1d1;text-decoration:none;font-weight:720}.site-primary a:hover,.site-primary a[aria-current=page]{color:#fff}.site-primary small{display:inline-block;color:#061711;background:var(--mint);font-size:9px;border-radius:999px;padding:1px 5px;vertical-align:2px;margin-left:3px}.site-primary .site-login{border:1px solid var(--line);border-radius:9px;padding:8px 13px;color:#fff}.course-masthead{max-width:1240px;margin:auto;padding:23px 28px 0;display:flex;align-items:center;justify-content:space-between;gap:18px}.back-link{color:var(--muted);text-decoration:none;font-size:13px}.back-link:hover{color:#fff}.course-switcher{display:flex;gap:4px;overflow:auto;max-width:100%;scrollbar-width:none}.course-switcher::-webkit-scrollbar{display:none}.course-switcher a{color:#90a8ad;text-decoration:none;padding:7px 10px;border-radius:7px;font-size:12px;font-weight:750;white-space:nowrap}.course-switcher a:hover,.course-switcher a[aria-current=page]{background:#16303a;color:#fff}.course-intro{max-width:1240px;margin:auto;padding:44px 28px 35px;display:grid;grid-template-columns:minmax(0,1.3fr) minmax(260px,.7fr);gap:60px;align-items:end}.eyebrow{margin:0 0 10px;color:var(--mint);font-size:10px;letter-spacing:.16em;font-weight:850;text-transform:uppercase}.course-intro h1{font-size:clamp(42px,7vw,88px);line-height:.92;letter-spacing:-.08em;margin:0 0 16px;font-weight:850}.course-intro h1 .title-dot{color:var(--mint)}.course-intro h1+ p{font-size:clamp(22px,3vw,35px);line-height:1.12;letter-spacing:-.045em;max-width:700px;margin:0;font-weight:720}.course-description{color:var(--muted);max-width:380px;margin:0;font-size:16px}.sim-app{max-width:1240px;margin:0 auto 36px;padding:0 28px;min-height:620px}.sim-loading{display:grid;place-items:center;min-height:590px;border:1px solid var(--line);border-radius:24px;background:linear-gradient(135deg,#0c1922,#0a151c);color:var(--muted)}.sim-shell{border:1px solid var(--line);border-radius:24px;background:linear-gradient(140deg,#0e2029,#0b171f 60%);overflow:hidden;box-shadow:0 25px 80px rgba(0,0,0,.28)}.sim-topbar{padding:18px 22px;border-bottom:1px solid var(--line);display:flex;gap:20px;align-items:center;justify-content:space-between}.sim-course-meta{display:flex;align-items:center;gap:11px}.sim-course-meta .sim-kicker{font-size:10px;letter-spacing:.12em;color:var(--mint);font-weight:850}.sim-course-meta h2{margin:0;font-size:20px;letter-spacing:-.03em}.sim-progress{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:12px}.sim-progress-track{width:110px;height:5px;border-radius:99px;background:#19313a;overflow:hidden}.sim-progress-fill{height:100%;background:var(--mint);border-radius:inherit;transition:width .3s}.sim-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(340px,.72fr);min-height:540px}.sim-stage{position:relative;min-height:540px;background:#08141b;overflow:hidden}.sim-canvas{position:absolute;inset:0}.sim-canvas canvas{display:block;width:100%;height:100%}.sim-scene-caption{position:absolute;left:20px;bottom:18px;right:20px;padding:12px 15px;border:1px solid rgba(255,255,255,.14);background:rgba(5,17,24,.76);backdrop-filter:blur(10px);border-radius:12px;color:#d8e7e5;font-size:12px}.sim-view-controls{position:absolute;top:16px;right:16px;display:flex;gap:6px}.sim-view-controls button{border:1px solid var(--line);background:rgba(8,19,27,.8);color:#dcecea;border-radius:7px;padding:7px 9px;cursor:pointer}.sim-workspace{padding:24px;overflow:auto;max-height:540px}.sim-case-head{display:flex;gap:10px;align-items:flex-start;justify-content:space-between}.sim-case-head h3{margin:0;font-size:26px;line-height:1.05;letter-spacing:-.05em}.sim-case-topic{color:var(--amber);font-size:11px;text-transform:uppercase;letter-spacing:.13em;font-weight:850}.sim-case-time{white-space:nowrap;color:var(--muted);font-size:11px}.sim-brief{color:#cad9d8;margin:14px 0 17px}.sim-character{border-left:3px solid var(--mint);padding:7px 0 7px 12px;color:#d6e4e2}.sim-character strong{display:block;color:#fff}.sim-documents{display:flex;gap:7px;flex-wrap:wrap;margin:18px 0}.sim-documents button{border:1px solid var(--line);border-radius:8px;background:#132a33;color:#d6e8e5;padding:8px 10px;text-align:left;cursor:pointer}.sim-documents button:hover{border-color:var(--mint);color:#fff}.sim-decision{margin-top:20px}.sim-decision h4{margin:0 0 10px;color:#f1f8f6;font-size:13px}.sim-choices{display:grid;gap:8px}.sim-choice{width:100%;padding:12px 13px;text-align:left;border-radius:9px;border:1px solid var(--line);background:#10232c;color:#e5f1ee;cursor:pointer;transition:.18s}.sim-choice:hover:not(:disabled){transform:translateX(3px);border-color:var(--mint);background:#15313b}.sim-choice:disabled{cursor:default}.sim-choice.is-correct{border-color:#69d3ae;background:rgba(53,145,113,.22)}.sim-choice.is-wrong{border-color:#ed8da6;background:rgba(158,52,86,.22)}.sim-feedback{margin-top:14px;padding:13px;border:1px solid var(--line);border-radius:10px;background:#10232c;color:#d1e2de}.sim-feedback strong{color:var(--mint)}.sim-feedback.is-wrong strong{color:#ff9eb6}.sim-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}.sim-btn{display:inline-flex;justify-content:center;align-items:center;gap:9px;border:0;border-radius:9px;padding:11px 14px;text-decoration:none;font:inherit;font-weight:800;cursor:pointer}.sim-btn-primary{background:var(--mint);color:#081914}.sim-btn-primary:hover{filter:brightness(1.06)}.sim-btn-secondary{border:1px solid var(--line);background:transparent;color:#d9e8e5}.sim-metrics{display:flex;gap:16px;flex-wrap:wrap;color:var(--muted);font-size:11px;margin-top:16px}.sim-metrics strong{color:#fff;font-size:15px}.sim-overview{padding:24px}.sim-overview-head{display:flex;justify-content:space-between;gap:15px;align-items:end;margin-bottom:22px}.sim-overview h3{font-size:28px;letter-spacing:-.05em;margin:0}.sim-overview p{color:var(--muted);margin:3px 0 0}.sim-chapter-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.sim-chapter{border:1px solid var(--line);background:#10232b;padding:15px;border-radius:12px}.sim-chapter h4{margin:0 0 9px;font-size:14px}.sim-scenario-list{display:grid;gap:4px}.sim-scenario-card{border:0;background:transparent;color:#9eb4b5;text-align:left;padding:5px 0;cursor:pointer;font:inherit;font-size:12px}.sim-scenario-card:hover,.sim-scenario-card.is-active{color:#fff}.sim-scenario-card.is-done:before{content:'✓ ';color:var(--mint)}.sim-modal{position:fixed;inset:0;z-index:100;display:grid;place-items:center;padding:18px;background:rgba(0,0,0,.7);backdrop-filter:blur(6px)}.sim-modal[hidden]{display:none}.sim-modal-content{max-width:650px;width:100%;max-height:min(760px,90vh);overflow:auto;background:#122832;border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:0 30px 100px rgba(0,0,0,.4)}.sim-modal-content header{display:flex;justify-content:space-between;gap:12px}.sim-modal-content h3{margin:0;font-size:23px}.sim-modal-close{border:0;background:transparent;color:var(--muted);font-size:22px;cursor:pointer}.sim-document-body{white-space:pre-wrap;color:#d5e3e0;line-height:1.7;margin-top:18px}.practice-note{max-width:1184px;margin:0 auto;padding:0 28px 62px;display:grid;grid-template-columns:1fr 1fr;gap:30px;color:#91a9ad;font-size:12px}.practice-note p{border-top:1px solid var(--line);padding-top:15px}.practice-note strong{color:#d6e9e4}.hub-hero{max-width:1240px;margin:auto;padding:85px 28px 65px;display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:48px;align-items:center}.hub-hero-copy h1{font-size:clamp(52px,7vw,94px);line-height:.88;letter-spacing:-.09em;margin:0 0 24px}.hub-hero-copy h1 em{font-family:var(--serif);font-weight:400;color:var(--mint)}.hub-hero-copy>p:not(.eyebrow){max-width:440px;color:var(--muted);font-size:17px;margin:0 0 25px}.live-dot{width:7px;height:7px;background:var(--mint);border-radius:99px;display:inline-block;box-shadow:0 0 12px var(--mint)}.hub-facts{display:flex;gap:17px;flex-wrap:wrap;margin-top:28px;color:#9cb0b0;font-size:11px;text-transform:uppercase;letter-spacing:.08em}.hub-facts strong{color:#fff;font-size:18px;display:block;letter-spacing:-.05em}.hub-feature-scene{position:relative;min-height:440px;border:1px solid var(--line);border-radius:22px;background:#0a171e;overflow:hidden}.hub-scene{height:440px}.hub-scene canvas{width:100%;height:100%;display:block}.hub-scene-label{position:absolute;left:18px;right:18px;bottom:58px;display:flex;gap:9px;align-items:center;padding:10px 12px;background:rgba(6,18,24,.78);backdrop-filter:blur(10px);border:1px solid var(--line);border-radius:9px;font-size:10px;letter-spacing:.1em;color:var(--muted)}.hub-scene-label strong{color:#fff;letter-spacing:0}.scene-coordinate{margin-left:auto;color:var(--mint)}.hub-scene-tabs{position:absolute;bottom:12px;left:12px;right:12px;display:flex;gap:5px}.hub-scene-tabs button{flex:1;background:#152a32;color:#9eb3b3;border:1px solid var(--line);padding:7px;border-radius:7px;cursor:pointer;font-weight:700;font-size:11px}.hub-scene-tabs button[aria-pressed=true]{background:var(--mint);color:#071a14}.hub-courses{max-width:1240px;margin:auto;padding:66px 28px}.section-heading{display:flex;justify-content:space-between;gap:25px;align-items:end;margin-bottom:25px}.section-heading h2,.hub-method h2,.hub-bundle h2{font-size:clamp(33px,4vw,55px);line-height:.95;letter-spacing:-.08em;margin:0}.section-heading>p{color:var(--muted);font-size:13px;margin:0}.hub-course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.hub-course-card{background:#0d2028;border:1px solid var(--line);border-radius:15px;overflow:hidden;transition:.2s}.hub-course-card:hover{transform:translateY(-4px);border-color:rgba(120,224,197,.55)}.hub-card-visual{display:block;position:relative;aspect-ratio:1.43;overflow:hidden;background:#10252d}.hub-card-visual img{width:100%;height:100%;object-fit:cover;opacity:.74;filter:saturate(.85);transition:.25s}.hub-course-card:hover img{opacity:.95;transform:scale(1.04)}.card-number{position:absolute;left:13px;top:12px;padding:4px 6px;border-radius:5px;background:rgba(5,15,20,.75);border:1px solid rgba(255,255,255,.18);font-size:9px;letter-spacing:.13em;color:#fff}.card-arrow{position:absolute;right:13px;top:11px;display:grid;place-items:center;border-radius:99px;width:29px;height:29px;background:var(--mint);color:#071a14;font-weight:900}.hub-card-content{padding:18px}.hub-card-content .eyebrow{margin-bottom:6px}.hub-card-content h3{font-size:25px;letter-spacing:-.06em;margin:0 0 8px}.hub-card-content h3 a{color:#fff;text-decoration:none}.hub-card-content>p:not(.eyebrow){color:var(--muted);font-size:13px;min-height:62px;margin:0}.card-tags{display:flex;flex-wrap:wrap;gap:5px;margin:15px 0}.card-tags span{border:1px solid var(--line);border-radius:99px;padding:3px 7px;color:#a8bdbc;font-size:10px}.card-start{border-top:1px solid var(--line);padding-top:13px;display:flex;justify-content:space-between;color:var(--mint);font-size:12px;font-weight:850;text-decoration:none}.card-start span{color:#82999c;font-weight:500}.hub-method{background:#10232c;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:65px max(28px,calc((100% - 1184px)/2));}.method-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:28px}.method-grid article{border-top:1px solid var(--line);padding-top:14px}.method-grid article>span{color:var(--mint);font-size:11px}.method-grid h3{margin:15px 0 6px;font-size:18px}.method-grid p{margin:0;color:var(--muted);font-size:13px}.hub-bundle{max-width:1184px;margin:auto;padding:75px 28px;display:grid;grid-template-columns:1fr .55fr;gap:50px;align-items:end}.hub-bundle p:not(.eyebrow){color:var(--muted);max-width:520px}.small-note{font-size:12px;color:#829b9d!important}.bundle-action{display:grid;gap:10px;justify-items:start}.bundle-action strong{font-size:55px;letter-spacing:-.09em}.bundle-action strong span{font-size:18px;letter-spacing:0;color:var(--mint)}.bundle-action>a:last-child{color:#a4bab8;font-size:12px}.site-footer{max-width:1240px;margin:auto;border-top:1px solid var(--line);padding:35px 28px 45px;display:grid;grid-template-columns:1fr auto auto;gap:35px;align-items:end;color:#81999d;font-size:12px}.site-footer p{margin:10px 0 0;color:#81999d}.site-footer nav{display:flex;gap:15px;flex-wrap:wrap}.site-footer nav a{color:#a9bdbd;text-decoration:none}.site-footer>span{white-space:nowrap}.sim-focus:focus-visible,.sim-btn:focus-visible,.sim-choice:focus-visible,.sim-documents button:focus-visible,.site-primary a:focus-visible,.course-switcher a:focus-visible{outline:2px solid var(--mint);outline-offset:3px}@media(max-width:900px){.course-intro{grid-template-columns:1fr;gap:18px}.sim-layout{grid-template-columns:1fr}.sim-workspace{max-height:none}.sim-stage{min-height:390px}.hub-hero{grid-template-columns:1fr}.hub-course-grid{grid-template-columns:1fr 1fr}.site-footer{grid-template-columns:1fr 1fr}.site-footer>span{grid-column:1/-1}.hub-bundle{grid-template-columns:1fr}.bundle-action{justify-items:start}}@media(max-width:620px){.site-header-inner{min-height:60px;padding:0 14px}.site-logo{font-size:20px}.site-logo span{width:27px;height:27px;font-size:18px}.site-primary{gap:8px;font-size:12px}.site-primary a:not(.site-login):first-child{max-width:120px;overflow:hidden;text-overflow:ellipsis}.site-primary small{display:none}.site-primary .site-login{padding:6px 8px}.course-masthead{padding:15px 14px 0;display:block}.course-switcher{margin-top:10px;margin-left:-5px;margin-right:-5px}.course-intro{padding:34px 14px 24px}.course-intro h1{font-size:53px}.course-intro h1+ p{font-size:24px}.sim-app{padding:0 14px;min-height:0}.sim-topbar{display:block;padding:15px}.sim-progress{margin-top:11px}.sim-workspace{padding:18px}.sim-case-head h3{font-size:23px}.sim-stage{min-height:320px}.sim-canvas{min-height:320px}.practice-note{padding:0 14px 42px;display:block}.practice-note p{margin:20px 0}.hub-hero{padding:50px 14px 34px;gap:27px}.hub-hero-copy h1{font-size:57px}.hub-feature-scene,.hub-scene{min-height:320px;height:320px}.hub-scene-label{bottom:49px}.hub-courses{padding:45px 14px}.section-heading{display:block}.section-heading>p{margin-top:12px}.hub-course-grid{grid-template-columns:1fr}.hub-method{padding:48px 14px}.method-grid{grid-template-columns:1fr;gap:28px}.hub-bundle{padding:50px 14px;display:block}.bundle-action{margin-top:25px}.site-footer{display:block;padding:30px 14px 38px}.site-footer nav{margin:20px 0;gap:12px}.sim-modal{padding:10px}.sim-modal-content{padding:18px}.sim-chapter-grid{grid-template-columns:1fr}.sim-overview{padding:16px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important;transition-duration:.01ms!important}.hub-course-card:hover{transform:none}.hub-course-card:hover img{transform:none}}

/* Shared simulator runtime */
button,input{font:inherit}a{color:var(--mint)}button:focus-visible,a:focus-visible{outline:2px solid var(--mint);outline-offset:3px}
.sim-eyebrow{color:var(--mint);font-size:10px;letter-spacing:.1em;font-weight:800;text-transform:uppercase}.sim-course-meta{display:grid;gap:3px}.sim-course-meta p{margin:0;color:var(--muted);font-size:12px}.sim-top-actions{display:flex;gap:8px;flex-wrap:wrap}.sim-top-actions .sim-btn{font-size:12px;padding:9px 12px}.sim-top-actions [data-review-count]{padding:0 5px;border-radius:4px;background:#18353c;color:var(--mint)}
.sim-progress{display:block;padding:12px 22px;margin:0;border-bottom:1px solid var(--line)}.sim-progress-label{display:flex;justify-content:space-between;gap:10px;margin-bottom:7px}.sim-progress-track{width:100%;height:4px}.sim-progress-track>span{display:block;height:100%;background:var(--mint);transition:width .3s}
.sim-layout{grid-template-columns:minmax(0,1.02fr) minmax(0,1fr);min-height:620px}.sim-stage{min-height:620px}.sim-workspace{max-height:700px;padding:25px;scrollbar-color:#2c4e55 transparent;scrollbar-width:thin}.sim-stage-top{position:absolute;top:18px;left:18px;display:flex;align-items:center;gap:7px;color:#a9c9ca;font-size:9px;letter-spacing:.08em;pointer-events:none}.sim-stage-top [data-scene-time]{margin-left:4px}.sim-live-dot{width:5px;height:5px;background:var(--mint);border-radius:50%}.sim-view-controls{top:45px;left:18px;right:auto}.sim-view-btn{font-size:10px}.sim-view-btn[aria-pressed=true]{color:var(--mint);border-color:var(--mint)}.sim-scene-caption h2{font-size:19px;letter-spacing:-.04em;margin:4px 0}.sim-scene-caption p{margin:0;color:#a2bdbf}.sim-scene-loading{display:grid;place-items:center;height:100%;color:var(--muted)}
.sim-brief h2{font-size:26px;line-height:1.13;letter-spacing:-.04em;margin:15px 0}.sim-brief p{font-size:14px;margin:0}.sim-documents{display:block;margin:22px 0}.sim-label{font-size:11px;font-weight:750;color:#bfd3d0;margin:0 0 9px}.sim-document-row{display:flex;gap:7px;flex-wrap:wrap}.sim-document-btn{display:grid;grid-template-columns:auto 1fr;gap:2px 7px;font-size:11px;flex:1;min-width:150px}.sim-document-kind{grid-column:2;color:#87a2a7;font-size:9px;text-transform:uppercase;letter-spacing:.08em}.sim-document-btn.is-read{border-color:#4f9d8b}.sim-decision h3{font-size:18px;line-height:1.35;letter-spacing:-.025em;margin:12px 0}.sim-step-progress{display:flex;align-items:center;gap:5px;font-size:10px;color:var(--muted)}.sim-step-progress>span:last-child{margin-left:6px}.sim-step-dot{height:4px;width:22px;background:#263c45;border-radius:4px}.sim-step-dot.is-active{background:var(--amber)}.sim-step-dot.is-done{background:var(--mint)}
.sim-choice{display:flex;align-items:flex-start;gap:10px;font-size:12px;line-height:1.5;padding:12px}.sim-choice-letter{display:grid;place-items:center;min-width:23px;height:23px;border:1px solid #38515a;border-radius:5px;color:var(--mint);font-size:10px;font-weight:800}.sim-chosen-label{margin-left:auto;white-space:nowrap;color:#a5c3bd;font-size:9px}.sim-hint{font-size:11px;line-height:1.6;color:#8fa9ae;margin-top:14px}.sim-feedback{font-size:12px}.sim-feedback p{margin:7px 0 0}.sim-correct-answer{padding-top:9px;border-top:1px solid var(--line)}.sim-actions .sim-btn{font-size:12px}.sim-bottom{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:14px 22px;border-top:1px solid var(--line);font-size:10px;color:#8eaaad}.sim-bottom p{margin:0}.sim-bottom a{white-space:nowrap;text-decoration:none}
.sim-overview{padding:0}.sim-overview h2,.sim-summary h2,.sim-access-card h2{font-size:27px;line-height:1.15;letter-spacing:-.04em;margin:12px 0}.sim-overview p,.sim-summary>p,.sim-access-card p{font-size:13px;color:var(--muted)}.sim-overview-stats{display:flex;gap:20px;margin:20px 0;color:var(--muted);font-size:11px}.sim-overview-stats strong{color:var(--mint)}.sim-chapter-grid{grid-template-columns:1fr;gap:13px}.sim-chapter h3{font-size:13px;margin:0 0 10px}.sim-chapter h3>span{color:var(--mint);margin-right:6px}.sim-scenario-card{display:grid;grid-template-columns:21px 1fr auto;align-items:center;gap:7px;border-top:1px solid var(--line);padding:9px 0;font-size:11px}.sim-scenario-card strong{font-weight:650;color:#d7e5e2}.sim-scenario-card small{display:block;font-size:9px;color:#7e9a9e;margin-top:2px}.sim-scenario-number{color:#5b7d83;font-size:10px}.sim-scenario-status{font-size:9px;white-space:nowrap;color:var(--mint)}.sim-scenario-card.is-locked .sim-scenario-status{color:#d9b177}.sim-scenario-card.is-complete .sim-scenario-number{color:var(--mint)}.sim-storage-note{font-size:10px!important;margin:20px 0!important}.sim-result-number{font-size:64px;line-height:1;color:var(--mint);font-weight:750;letter-spacing:-.06em;margin-top:24px}.sim-result-number span{font-size:27px;color:#63888d}.sim-takeaway{border-left:2px solid var(--mint);padding:4px 0 4px 13px;margin:22px 0}.sim-takeaway h3,.sim-sources h3{font-size:12px;margin:0 0 7px}.sim-takeaway p{font-size:13px;color:#d4e4de;margin:0}.sim-metrics div{display:grid;gap:3px}.sim-answer-review details{padding:10px 0;border-bottom:1px solid var(--line);font-size:11px}.sim-answer-review summary{cursor:pointer;color:#a7ccc2}.sim-sources{margin:22px 0;font-size:11px}.sim-sources ul{padding-left:17px}.sim-sources a{color:var(--mint)}
.sim-modal{display:none;inset:0;margin:auto;max-width:680px;width:calc(100% - 32px);max-height:90vh;padding:0;border:0;background:transparent;backdrop-filter:none;color:var(--text);overflow:visible}.sim-modal[open]{display:block}.sim-modal::backdrop{background:rgba(2,9,13,.78);backdrop-filter:blur(7px)}.sim-modal-content{max-width:none;max-height:88vh;width:100%}.sim-modal-head{display:flex;justify-content:space-between;align-items:center;gap:20px}.sim-modal-head .sim-btn{font-size:11px;padding:7px 10px}.sim-modal-content h2{font-size:26px;line-height:1.15;letter-spacing:-.035em;margin:20px 0 0}.sim-document-body{font-size:14px;white-space:normal}.sim-announcement{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:900px){.sim-layout{grid-template-columns:1fr}.sim-stage{min-height:420px}.sim-workspace{max-height:none}.sim-topbar{align-items:start}.sim-chapter-grid{grid-template-columns:1fr}}
@media(max-width:620px){.sim-course-meta h2{font-size:18px}.sim-top-actions{margin-top:13px}.sim-topbar{padding:15px}.sim-progress{padding:11px 15px}.sim-progress-label{font-size:10px}.sim-stage{min-height:350px}.sim-workspace{padding:18px}.sim-brief h2{font-size:24px}.sim-choice{font-size:13px}.sim-choice-letter{min-width:24px}.sim-document-btn{min-width:125px}.sim-bottom{display:block;padding:13px 16px}.sim-bottom a{display:inline-block;margin-top:8px}.sim-chosen-label{display:none}.sim-scene-caption{left:12px;right:12px;bottom:12px}.sim-scene-caption h2{font-size:17px}.sim-case-head{gap:7px}.sim-case-head .sim-eyebrow{font-size:9px}.sim-case-time{font-size:9px}.sim-modal-content{padding:20px}}

/* Course page masthead: keep the promise, navigation and simulator in one calm
   visual sequence instead of leaving a large empty gap above the workspace. */
.course-masthead{padding-top:18px;padding-bottom:0;align-items:center}.course-masthead:after{content:'';position:absolute;left:0;right:0;top:72px;height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);pointer-events:none}.course-intro{position:relative;isolation:isolate;padding:52px 28px 38px;gap:42px;overflow:hidden}.course-intro:before{content:'';position:absolute;z-index:-1;inset:8px 0 0;border-radius:22px;background:radial-gradient(circle at 12% 42%,rgba(120,224,197,.12),transparent 32%),linear-gradient(115deg,rgba(15,39,47,.76),rgba(8,19,27,0) 70%)}.course-intro:after{content:'';position:absolute;z-index:-1;width:260px;height:260px;right:4%;top:8px;border:1px solid rgba(120,224,197,.12);border-radius:50%;box-shadow:0 0 0 24px rgba(120,224,197,.025),0 0 0 48px rgba(120,224,197,.018);pointer-events:none}.course-intro h1{font-size:clamp(48px,6.3vw,78px);line-height:.9;margin-bottom:18px;text-wrap:balance}.course-intro h1 .title-dot{font-size:.8em}.course-intro h1+p{font-size:clamp(20px,2.6vw,31px);max-width:560px}.course-description{font-size:15px;line-height:1.65;padding:0 0 5px;max-width:410px}.course-intro .eyebrow{margin-bottom:14px}.back-link{padding:7px 0}.course-switcher a{border:1px solid transparent}.course-switcher a[aria-current=page]{border-color:rgba(120,224,197,.26)}
@media(max-width:620px){.course-masthead{padding-top:12px}.course-masthead:after{top:60px}.course-intro{padding:38px 14px 28px;gap:20px}.course-intro:before{inset:4px 0 0;border-radius:16px}.course-intro:after{width:150px;height:150px;right:-35px;top:18px}.course-intro h1{font-size:clamp(46px,15vw,62px);margin-bottom:14px}.course-intro h1+p{font-size:23px;max-width:300px}.course-description{font-size:14px;line-height:1.55;max-width:360px}.course-intro .eyebrow{font-size:9px;letter-spacing:.13em}}