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var(--container))}.header-inner{flex-wrap:wrap;gap:0;min-height:66px}.mobile-menu-button{display:inline-flex}.site-nav{width:100%;padding:10px 0 max(16px, env(safe-area-inset-bottom,0px));border-top:1px solid var(--line);flex-direction:column;align-items:stretch;gap:12px;display:none}.site-nav.is-open{max-height:calc(100vh - 66px - env(safe-area-inset-top,0px));max-height:calc(100dvh - 66px - env(safe-area-inset-top,0px));overscroll-behavior:contain;-webkit-overflow-scrolling:touch;display:flex;overflow-y:auto}.nav-links{flex-direction:column;align-items:stretch;gap:2px}.nav-link{border-radius:8px;padding:10px 12px;font-size:.9rem}.nav-link:hover,.nav-link[aria-current=page]{background:var(--surface-soft)}.nav-link[aria-current=page]:after{width:3px;height:auto;inset:10px auto 10px 1px}.nav-actions{width:100%}.nav-actions .button{flex:1;display:inline-flex}.footer-grid{grid-template-columns:repeat(3,1fr)}.footer-brand{grid-column:1/-1}}@media (width<=620px){.page-section{padding-block:28px}.section-header{flex-direction:column;align-items:start;gap:12px}.section-header h1{font-size:clamp(1.9rem,10vw,2.6rem)}.catalog-tools{gap:16px;margin-top:18px;padding:14px}.catalog-search{flex-direction:column}.catalog-search .button{width:100%}.filter-group{grid-template-columns:1fr;gap:7px}.filter-label{margin:0}.filter-tabs{scrollbar-width:thin;flex-wrap:nowrap;margin-inline:-14px;padding:0 14px 3px;overflow-x:auto}.filter-tab{flex:none}.simulation-grid{grid-template-columns:1fr;gap:15px}.simulation-card{width:100%;max-width:460px;margin-inline:auto}.empty-state{min-height:280px;padding-inline:18px}.footer-grid{grid-template-columns:repeat(2,1fr);gap:30px 22px;padding-block:36px 30px}.footer-column:last-child{grid-column:span 2}.footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}}@media (width<=420px){.brand-copy small{display:none}.brand-mark{flex-basis:36px;width:36px;height:36px}.results-summary{flex-wrap:wrap;align-items:flex-start}.results-summary a{width:100%;margin:3px 0 0}.footer-grid{grid-template-columns:1fr}.footer-brand,.footer-column:last-child{grid-column:auto}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}.button:hover,.simulation-card:hover,.simulation-card:hover .simulation-card-media img{transform:none}}.button-block{width:100%}.button-row,.hero-actions,.empty-state-actions{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.home-hero{color:#fff;background:#1d1946;padding:72px 0 0;position:relative;overflow:hidden}.home-hero:before,.home-hero:after{content:"";pointer-events:none;border:1px solid #ffffff17;border-radius:50%;position:absolute}.home-hero:before{width:520px;height:520px;top:-330px;left:-180px}.home-hero:after{width:700px;height:700px;bottom:-430px;right:-460px}.hero-layout{z-index:1;grid-template-columns:minmax(0,1.08fr) minmax(360px,.92fr);align-items:center;gap:clamp(38px,7vw,90px);padding-bottom:68px;display:grid;position:relative}.hero-copy{max-width:690px}.hero-copy .eyebrow{color:#c8c1ff}.hero-copy .eyebrow:before{background:#9185ff}.hero-copy h1{color:#fff;letter-spacing:-.065em;max-width:680px;margin:14px 0 22px;font-size:clamp(3.25rem,7.4vw,6.5rem);line-height:.96}.hero-copy>p{color:#d8d5ed;max-width:660px;margin:0;font-size:clamp(1.05rem,2vw,1.25rem);line-height:1.72}.hero-search{background:#ffffff14;border:1px solid #ffffff2e;border-radius:14px;gap:10px;max-width:680px;margin:30px 0 18px;padding:7px;display:flex}.hero-search input{color:#fff;background:0 0;border:0;outline:0;flex:1;min-width:0;padding:9px 12px}.hero-search input::placeholder{color:#aaa6c7}.hero-search:focus-within{border-color:#a59cff;box-shadow:0 0 0 3px #a59cff2e}.home-hero .button-primary{background:#7566ef;border-color:#7566ef}.home-hero .button-primary:hover{background:#887af6;border-color:#887af6}.home-hero .button-secondary{color:#fff;background:#ffffff14;border-color:#ffffff3d}.hero-visual{min-height:470px;position:relative}.orbit-card{aspect-ratio:1;background:#28225d;border:1px solid #ffffff26;border-radius:34px;width:min(39vw,420px);position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);box-shadow:0 32px 80px #04031661}.orbit-nucleus{z-index:2;color:#fff;letter-spacing:-.04em;background:#7566ef;border:1px solid #ffffff47;border-radius:50%;place-items:center;width:86px;height:86px;font-weight:850;display:grid;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);box-shadow:0 18px 48px #00000047}.orbit{border:1px solid #d6d2ff61;border-radius:50%;display:block;position:absolute;top:50%;left:50%}.orbit 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#ffffff21;grid-template-columns:repeat(4,1fr);display:grid;position:relative}.hero-stats>div{border-right:1px solid #ffffff21;align-items:baseline;gap:9px;padding:24px 20px;display:flex}.hero-stats>div:first-child{padding-left:0}.hero-stats>div:last-child{border-right:0}.hero-stats strong{color:#fff;font-size:1.85rem;line-height:1}.hero-stats span{color:#bcb8d4;font-size:.85rem}.centered-heading{text-align:center;justify-content:center}.centered-heading>div{max-width:720px}.learning-strip{padding-block:72px}.feature-grid{grid-template-columns:repeat(4,1fr);gap:16px;display:grid}.feature-grid article{border:1px solid var(--line);border-radius:var(--radius-md);background:var(--surface);min-height:220px;padding:26px}.feature-grid article>span,.feature-number,.subject-index{color:var(--brand);font-family:var(--app-font-mono);letter-spacing:.08em;font-size:.76rem;font-weight:780}.feature-grid h3{margin:42px 0 8px;font-size:1.14rem}.feature-grid p,.section-note{color:var(--ink-soft);margin:0}.subject-grid{grid-template-columns:repeat(3,1fr);gap:16px;display:grid}.subject-grid>a{border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);min-height:280px;color:var(--ink);box-shadow:var(--shadow-sm);flex-direction:column;padding:30px;transition:transform .18s,border-color .18s;display:flex}.subject-grid>a:hover{box-shadow:var(--shadow-md);border-color:#c9c3ef;text-decoration:none}@media (hover:hover) and (pointer:fine){.button:hover{transform:translateY(-1px)}.simulation-card:hover{transform:translateY(-5px)}.simulation-card-media img{transition:transform .26s}.simulation-card:hover .simulation-card-media img{transform:scale(1.025)}.subject-grid>a:hover{transform:translateY(-4px)}}@media (prefers-reduced-motion:reduce){.subject-grid>a:hover{transform:none}}.subject-grid h3{letter-spacing:-.03em;margin:48px 0 10px;font-size:clamp(1.35rem,3vw,2rem)}.subject-grid p{color:var(--ink-soft);margin:0 0 28px}.subject-grid strong{color:var(--brand);margin-top:auto}.page-cta{border-radius:var(--radius-lg);background:var(--brand-soft);border:1px solid #d9d3ff;justify-content:space-between;align-items:center;gap:30px;margin-block:54px 84px;padding:clamp(30px,5vw,52px);display:flex}.page-cta h2{letter-spacing:-.04em;margin:7px 0 0;font-size:clamp(1.6rem,4vw,2.7rem);line-height:1.12}.catalog-page,.content-page,.simulation-page{min-height:62vh}.catalog-hero,.content-hero{padding-top:66px;padding-bottom:30px}.catalog-hero h1,.content-hero h1{letter-spacing:-.055em;max-width:900px;margin:12px 0 16px;font-size:clamp(2.6rem,6vw,5rem);line-height:1}.catalog-hero p,.content-hero>p{max-width:760px;color:var(--ink-soft);margin:0;font-size:1.08rem}.compact-hero{padding-bottom:8px}.catalog-section .catalog-tools{margin-bottom:28px}.content-hero{padding-bottom:48px}.center-copy{text-align:center}.center-copy>*{margin-inline:auto}.prose-grid,.pricing-grid{grid-template-columns:repeat(3,1fr);gap:18px;padding-bottom:40px;display:grid}.prose-card,.price-card{border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow-sm);padding:clamp(26px,4vw,38px)}.prose-card h2{margin:42px 0 10px;font-size:1.45rem}.prose-card p{color:var(--ink-soft);margin:0}.pricing-grid{grid-template-columns:repeat(2,minmax(0,1fr));max-width:960px;padding-bottom:80px}.price-card{flex-direction:column;display:flex}.price-card-featured{border-color:#bdb4ff;box-shadow:0 24px 58px #5b4bdb24}.price-kicker{background:var(--brand-soft);color:var(--brand-dark);text-transform:uppercase;letter-spacing:.07em;border-radius:999px;align-self:flex-start;padding:5px 10px;font-size:.76rem;font-weight:760}.price-card h2{margin:20px 0 4px;font-size:1.75rem}.price{align-items:baseline;gap:5px;min-height:58px;margin:2px 0 18px;display:flex}.price strong{letter-spacing:-.05em;font-size:2.45rem}.price span{color:var(--ink-soft)}.check-list{color:var(--ink-soft);gap:11px;margin:0 0 28px;padding:0;list-style:none;display:grid}.check-list li{padding-left:24px;position:relative}.check-list li:before{content:"✓";color:var(--success);font-weight:800;position:absolute;left:0}.price-card .button{margin-top:auto}.legal-copy{max-width:820px;padding-top:68px;padding-bottom:90px}.legal-copy h1{letter-spacing:-.05em;margin:10px 0 2px;font-size:clamp(2.5rem,6vw,4.5rem)}.legal-updated{color:var(--ink-muted);margin:0 0 44px}.legal-copy h2{margin:34px 0 8px;font-size:1.4rem}.legal-copy p{color:var(--ink-soft)}.account-card{border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);text-align:center;max-width:720px;min-height:520px;box-shadow:var(--shadow-md);flex-direction:column;justify-content:center;align-items:center;margin-block:58px 88px;padding:clamp(34px,7vw,70px);display:flex}.account-avatar{background:var(--brand);color:#fff;border-radius:50%;place-items:center;width:86px;height:86px;margin:22px 0 14px;font-size:2rem;font-weight:800;display:grid}.account-card h1{letter-spacing:-.04em;margin:8px 0;font-size:clamp(2rem,5vw,3.2rem)}.account-card>p{max-width:540px;color:var(--ink-soft)}.account-email{font-family:var(--app-font-mono);margin:0;font-size:.88rem}.account-card .button-row{justify-content:center;margin-top:18px}.form-page-grid{grid-template-columns:minmax(0,.78fr) minmax(480px,1.22fr);gap:clamp(36px,8vw,92px);padding-top:70px;padding-bottom:90px;display:grid}.form-page-copy{padding-top:16px}.form-page-copy h1{letter-spacing:-.05em;margin:12px 0 18px;font-size:clamp(2.5rem,5vw,4.4rem);line-height:1.02}.form-page-copy>p{color:var(--ink-soft);font-size:1.06rem}.contact-note{border:1px solid var(--line);border-radius:var(--radius-md);background:var(--surface);margin-top:34px;padding:20px}.contact-note p{color:var(--ink-soft);margin:5px 0 0}.idea-steps{gap:18px;margin:36px 0 0;padding:0;list-style:none;display:grid}.idea-steps li{align-items:flex-start;gap:14px;display:flex}.idea-steps li>span{background:var(--brand-soft);width:32px;height:32px;color:var(--brand);border-radius:50%;flex:0 0 32px;place-items:center;font-weight:800;display:grid}.idea-steps p{color:var(--ink-soft);margin:2px 0 0}.breadcrumbs{color:var(--ink-muted);white-space:nowrap;align-items:center;gap:8px;margin-bottom:30px;font-size:.87rem;display:flex;overflow:hidden}.breadcrumbs a,.breadcrumbs span[aria-current=page]{text-overflow:ellipsis;overflow:hidden}.simulation-title-row{justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:26px;display:flex}.simulation-title-row h1{letter-spacing:-.05em;max-width:980px;margin:10px 0 16px;font-size:clamp(2.25rem,5vw,4.6rem);line-height:1.02}.simulation-meta{flex-wrap:wrap;align-items:center;gap:9px;display:flex}.snapshot-note{color:var(--ink-muted);font-family:var(--app-font-mono);font-size:.76rem}.simulation-viewer{background:#0f172a;border:1px solid #2d294f;border-radius:20px;overflow:hidden;box-shadow:0 25px 65px #110f2d33}.simulation-viewer:fullscreen{border:0;border-radius:0;grid-template-rows:minmax(0,1fr) auto;width:100vw;height:100dvh;display:grid}.simulation-frame{background:#0f172a;border:0;width:100%;height:min(72vh,780px);min-height:560px;display:block}.simulation-viewer:fullscreen .simulation-frame{height:100%;min-height:0}.simulation-viewer:fullscreen .viewer-toolbar{padding-right:max(14px, env(safe-area-inset-right,0px));padding-bottom:max(10px, env(safe-area-inset-bottom,0px));padding-left:max(20px, env(safe-area-inset-left,0px))}.viewer-toolbar{color:#d7d3eb;background:#17152f;border-top:1px solid #2d294f;justify-content:space-between;align-items:center;gap:18px;min-height:62px;padding:10px 14px 10px 20px;display:flex}.viewer-toolbar p{margin:0;font-size:.8rem}.viewer-toolbar-actions{flex:none;gap:8px;display:flex}.locked-simulation{border-radius:var(--radius-lg);text-align:center;background:#fffaf0;border:1px solid #e6d49c;flex-direction:column;justify-content:center;align-items:center;min-height:560px;padding:48px;display:flex}.locked-icon{background:var(--premium-soft);width:74px;height:74px;color:var(--premium);border-radius:50%;place-items:center;margin-bottom:22px;font-size:1.45rem;display:grid}.locked-simulation h2{letter-spacing:-.04em;max-width:700px;margin:10px 0;font-size:clamp(1.8rem,4vw,3.1rem);line-height:1.12}.locked-simulation p{max-width:660px;color:var(--ink-soft)}.locked-simulation .button-row{justify-content:center;margin-top:14px}.simulation-info-grid{grid-template-columns:minmax(0,1.45fr) minmax(300px,.55fr);gap:22px;margin-top:26px;display:grid}.simulation-description,.simulation-side-card{border:1px solid var(--line);border-radius:var(--radius-md);background:var(--surface);padding:clamp(26px,4vw,38px)}.simulation-description h2,.simulation-side-card h2{margin:8px 0 12px;font-size:1.45rem}.simulation-description p,.simulation-side-card p{color:var(--ink-soft)}.simulation-description p:last-child,.simulation-side-card>p:last-of-type{margin-bottom:0}.simulation-actions{gap:10px;margin-top:24px;display:grid}.related-section{padding-top:18px;padding-bottom:84px}.progress-list{gap:12px;max-width:920px;display:grid}.progress-row{border:1px solid var(--line);border-radius:var(--radius-md);background:var(--surface);justify-content:space-between;align-items:center;gap:24px;padding:20px 22px;display:flex}.progress-row>div{align-items:flex-start;gap:14px;display:flex}.progress-row h2{margin:3px 0;font-size:1.15rem}.progress-row p{color:var(--ink-muted);margin:0;font-size:.86rem}.status-dot{background:#d2cfdf;border-radius:50%;flex:0 0 11px;width:11px;height:11px;margin-top:8px}.status-completed{background:var(--success);box-shadow:0 0 0 5px var(--success-soft)}.status-started{background:var(--brand);box-shadow:0 0 0 5px var(--brand-soft)}.standalone-empty{margin-block:68px 90px}.standalone-empty h1{letter-spacing:-.05em;margin:7px 0 10px;font-size:clamp(2rem,6vw,4.3rem)}@media (width<=980px){.hero-layout{grid-template-columns:1fr}.hero-copy{max-width:760px}.hero-visual{min-height:390px}.orbit-card{width:min(76vw,390px)}.feature-grid{grid-template-columns:repeat(2,1fr)}.form-page-grid,.simulation-info-grid{grid-template-columns:1fr}.form-page-grid{gap:30px}}@media (width<=760px){.home-hero{padding-top:52px}.hero-copy h1{font-size:clamp(3rem,16vw,5rem)}.hero-search{flex-direction:column;align-items:stretch;padding:10px}.hero-search input{min-height:48px}.hero-stats{grid-template-columns:repeat(2,1fr)}.hero-stats>div{flex-direction:column;align-items:flex-start;padding:20px 14px}.hero-stats>div:nth-child(2){border-right:0}.hero-stats>div:nth-child(-n+2){border-bottom:1px solid #ffffff21}.hero-stats>div:first-child{padding-left:14px}.subject-grid,.prose-grid,.pricing-grid{grid-template-columns:1fr}.page-cta{flex-direction:column;align-items:flex-start}.page-cta .button{width:100%}.simulation-frame{height:clamp(460px,68svh,640px);min-height:0}.viewer-toolbar{padding:10px 12px max(10px, env(safe-area-inset-bottom));flex-direction:column;align-items:stretch}.viewer-toolbar .button{width:100%}.viewer-toolbar-actions{grid-template-columns:repeat(2,minmax(0,1fr));width:100%;display:grid}.viewer-toolbar-actions>:only-child{grid-column:1/-1}.progress-row{flex-direction:column;align-items:stretch}.progress-row>.button{width:100%}}@media (width<=520px){.feature-grid{grid-template-columns:1fr}.hero-visual{min-height:340px}.orbit-card{border-radius:26px}.concept-chip-a{left:0}.concept-chip-b{right:0}.simulation-title-row h1{overflow-wrap:anywhere}.simulation-frame{height:clamp(430px,66svh,560px)}.locked-simulation{min-height:480px;padding:34px 20px}}@media (pointer:coarse){.brand,.button-small,.filter-tab,.nav-link,a.category-tag,.footer-column a{min-height:44px}.footer-column a{align-items:center;display:inline-flex}}@media (orientation:landscape) and (height<=540px) and (pointer:coarse){.simulation-viewer:not(:fullscreen) .simulation-frame{height:clamp(240px,60dvh,360px);min-height:0}.viewer-toolbar{flex-direction:row;align-items:center}.viewer-toolbar>p{display:none}.viewer-toolbar-actions{grid-template-columns:repeat(2,minmax(0,1fr));width:100%;display:grid}.viewer-toolbar-actions>:only-child{grid-column:1/-1}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-backdrop-blur{syntax:"*";inherits:false}@property --tw-backdrop-brightness{syntax:"*";inherits:false}@property --tw-backdrop-contrast{syntax:"*";inherits:false}@property --tw-backdrop-grayscale{syntax:"*";inherits:false}@property --tw-backdrop-hue-rotate{syntax:"*";inherits:false}@property --tw-backdrop-invert{syntax:"*";inherits:false}@property --tw-backdrop-opacity{syntax:"*";inherits:false}@property --tw-backdrop-saturate{syntax:"*";inherits:false}@property --tw-backdrop-sepia{syntax:"*";inherits:false}