html{scroll-behavior:smooth;scroll-padding-top:80px}.presence-toolbar{justify-content:space-between;align-items:center;gap:20px;margin-bottom:24px;display:flex}.presence-toolbar p{color:var(--prsn-muted);margin:0;font-size:14px}.presence-toolbar button{flex-shrink:0}.presence-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;display:grid}.presence-specimen{border:1px solid var(--prsn-border);background:var(--prsn-surface);border-radius:20px;min-width:0;overflow:hidden}.presence-stage{background:radial-gradient(ellipse at 60% 50%,color-mix(in srgb,var(--cursor-color) 9%,transparent),transparent 75%),radial-gradient(var(--prsn-border) .8px,transparent .8px) 0 0 / 16px 16px,var(--prsn-terminal);height:220px;position:relative;overflow:hidden}.presence-number{color:var(--prsn-muted);font-size:9px;position:absolute;top:20px;left:20px}.presence-color{color:var(--prsn-muted);font-size:9px;position:absolute;bottom:18px;left:20px}.presence-color:before{content:"";background:var(--cursor-color);border-radius:50%;width:7px;height:7px;margin-right:8px;display:inline-block}.presence-position{position:absolute;top:76px;left:calc(50% - 70px)}.presence-crosshair{border:1px solid var(--prsn-border);opacity:.6;border-radius:50%;width:15px;height:15px;position:absolute;top:82px;left:calc(50% - 66px)}.presence-caption{border-top:1px solid var(--prsn-border);padding:22px 24px}.presence-caption h3{letter-spacing:-.02em;margin:0 0 8px;font-size:18px;font-weight:500}.presence-caption p{color:var(--prsn-muted);margin:0;font-size:13px;line-height:1.7}.presence-footnote{color:var(--prsn-muted);justify-content:space-between;gap:20px;margin-top:18px;font-size:11px;line-height:1.6;display:flex}@media (width<=1000px){.presence-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=600px){.presence-grid{grid-template-columns:1fr}.presence-toolbar{flex-direction:column;align-items:flex-start}.presence-footnote{flex-direction:column;gap:0}.presence-stage{height:220px}}body{margin:0}button,a{-webkit-tap-highlight-color:transparent}a{text-decoration:none}h1,h2,h3,h4,p{margin-top:0}.sr-only{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;margin:-1px;position:absolute;overflow:hidden}.skip-link{z-index:50;position:fixed;top:-100px;left:16px}.skip-link:focus{top:16px}.site-header,main,.site-footer{width:min(1240px,100% - 80px);margin-inline:auto}.site-header{align-items:center;gap:24px;height:104px;display:flex}.brand{justify-content:center;align-items:center;min-width:44px;min-height:44px;display:inline-flex}[data-theme=light] .brand img{filter:brightness(.35)}.ds-toolbar-specimen{width:fit-content;max-width:100%;margin-block:16px}.ds-toolbar-specimen>button{min-width:0;min-height:44px}.ds-settings-specimen-motion{justify-content:space-between;width:100%}.ds-scene-menu-specimen{margin-block:16px}.ds-scene-menu-specimen>nav{margin-top:8px;position:static}.header-caption{font:10px var(--prsn-mono);letter-spacing:.1em;color:var(--prsn-muted)}.site-header nav{color:var(--prsn-muted);gap:30px;margin-left:auto;font-size:13px;display:flex}.site-header nav a{padding-block:12px}.site-header nav a:hover,.section-nav a:hover{color:var(--prsn-text)}.system-hero{text-align:center;padding:95px 0 56px}.system-hero>.ds-label{margin-bottom:24px}.system-hero h1{letter-spacing:-.045em;margin-bottom:28px;font-size:clamp(42px,5.1vw,72px);font-weight:500;line-height:1.2}.word-chip{font:inherit;letter-spacing:inherit;color:inherit;background:var(--prsn-raised);box-shadow:var(--prsn-highlight);border:0;border-radius:999px;padding:2px 25px 8px 52px;position:relative}.sticker{color:#e5c184;text-shadow:1px 2px #986b35,2px 4px #684725;font-size:.88em;font-weight:600;line-height:1;position:absolute;top:11%;left:-15px;transform:rotate(-15deg)}#swap-word{display:inline-block}.hero-description{color:var(--prsn-muted);font-size:17px;line-height:1.7}.hero-meta{color:var(--prsn-muted);justify-content:center;align-items:center;gap:14px;margin-top:26px;font-size:11px;display:flex}.hero-meta .ds-chip{color:var(--prsn-text);font-size:11px}.hero-meta .ds-status-dot{color:var(--prsn-success)}.hero-down{width:44px;height:44px;color:var(--prsn-muted);justify-content:center;align-items:center;margin-top:32px;display:inline-flex}.section-heading{justify-content:space-between;align-items:end;gap:32px;margin-bottom:32px;display:flex}.section-heading .ds-label{margin-bottom:13px}h2{letter-spacing:-.035em;margin-bottom:0;font-size:clamp(32px,3.7vw,48px);font-weight:500;line-height:1.15}.section-description{color:var(--prsn-muted);margin:0;font-size:14px;line-height:1.7}.hand-note{color:var(--prsn-muted);margin:0 15px 8px;font:italic 22px/1.5 Georgia,serif;transform:rotate(-7deg)}.hand-note span{margin-left:8px;font-size:35px;display:inline-block;transform:rotate(-15deg)}.playground-shell{background:var(--prsn-surface);border:1px solid var(--prsn-border);border-radius:var(--prsn-canvas-radius);grid-template-columns:minmax(0,1fr) 290px;display:grid;overflow:hidden;box-shadow:0 16px 48px #0002}.demo-canvas{background:var(--prsn-bg);min-width:0;color:var(--prsn-text);padding:24px}.canvas-top,.canvas-bottom{justify-content:space-between;align-items:center;gap:12px;display:flex}.canvas-top{margin-bottom:24px}.canvas-brand{letter-spacing:-.03em;font-size:14px;font-weight:500}.canvas-identity{align-items:center;gap:14px;display:flex}.canvas-identity .canvas-brand{color:var(--prsn-muted);font-size:12px}.canvas-top .ds-chip{font-size:10px}.demo-grid{grid-template-columns:1fr 1fr;gap:16px;display:grid}.demo-grid .ds-card{min-width:0}.specimen-intro h3{letter-spacing:-.035em;margin:26px 0 18px;font-size:clamp(32px,3.3vw,46px);font-weight:500;line-height:1.1}.specimen-intro h3>span{color:var(--prsn-accent)}.specimen-intro p{margin-bottom:26px;font-size:14px}.project-preview{flex-direction:column;padding:8px;display:flex;overflow:hidden}.project-art{border-radius:max(4px, calc(var(--prsn-card-radius) - 6px));background:var(--prsn-terminal);flex:1;min-height:220px;display:block;overflow:hidden}.project-art img{object-fit:cover;width:100%;height:100%;min-height:220px;transition:transform .28s var(--prsn-ease);display:block}.project-art:hover img{transform:scale(1.025)}.project-caption{justify-content:space-between;align-items:center;gap:12px;padding:20px 12px 12px;display:flex}.project-caption h3{letter-spacing:-.03em;margin:6px 0 0;font-size:22px;font-weight:500}.specimen-top{justify-content:space-between;align-items:center;display:flex}.type-large{letter-spacing:-.06em;margin:28px 0 30px;font-size:clamp(52px,6vw,82px);font-weight:500;line-height:1.2}.type-bottom{flex-wrap:wrap;justify-content:space-between;gap:8px;font-size:12px;display:flex}.settings-preview>.ds-label{margin-bottom:22px;display:block}.setting-row{justify-content:space-between;align-items:center;gap:10px;margin-bottom:20px;font-size:13px;display:flex}.setting-row small{color:var(--prsn-muted);margin-top:4px;font-size:10px;display:block}.switch-target{align-items:center;min-height:44px;display:flex}.switch-target input{appearance:none;cursor:pointer;border:1px solid var(--prsn-control-border);background:var(--prsn-bg);border-radius:999px;width:40px;height:24px;margin:0;padding:3px}.switch-target input:after{content:"";background:var(--prsn-muted);width:16px;height:16px;transition:transform .16s var(--prsn-ease);border-radius:50%;display:block}.switch-target input:checked{background:var(--prsn-accent);border-color:#0000}.switch-target input:checked:after{background:var(--prsn-on-accent);transform:translate(16px)}.setting-feedback{color:var(--prsn-muted);min-height:34px;margin:10px 0 0;font-size:11px}.canvas-bottom{margin-top:24px}.canvas-bottom button{padding:8px 12px;font-size:11px}.canvas-note{font:8px var(--prsn-mono);color:var(--prsn-muted);letter-spacing:.05em}.inspector{background:var(--prsn-terminal);border-left:1px solid var(--prsn-border);padding:26px 22px}.inspector-heading{justify-content:space-between;align-items:center;gap:12px;display:flex}.inspector h3{margin:0;font-size:16px;font-weight:500}.reset-button{color:var(--prsn-muted);background:0 0;border:0;padding:10px 0 10px 8px;font-size:11px!important}.inspector-description{color:var(--prsn-muted);margin:8px 0 24px;font-size:11px}.inspector-row{background:var(--prsn-raised);border-radius:12px;justify-content:space-between;gap:10px;margin-bottom:8px;padding:13px 12px;font-size:11px;display:flex}.inspector-row>span:first-child{color:var(--prsn-muted)}.inspector-row>span>span{margin-left:8px}.accent-field{border:0;min-width:0;margin:26px 0 22px;padding:0}.accent-field legend{justify-content:space-between;width:100%;margin-bottom:12px;font-size:12px;display:flex}.accent-field output{font:10px var(--prsn-mono);color:var(--prsn-muted)}.accent-options{gap:4px;display:flex}.accent-options button{background:0 0;border:1px solid #0000;border-radius:50%;width:44px;height:44px;padding:5px;position:relative}.accent-options button:after{content:"";background:var(--swatch);border-radius:50%;width:100%;height:100%;display:block}.accent-options button[aria-pressed=true]{border-color:var(--prsn-text)}.character-heading{justify-content:space-between;align-items:center;gap:4px;margin-bottom:12px;font-size:12px;display:flex}.character-heading .ds-label{letter-spacing:0;font-size:8px}.character-pad{background:var(--prsn-raised);border:1px solid var(--prsn-border);touch-action:none;cursor:crosshair;-webkit-user-select:none;user-select:none;border-radius:12px;height:166px;position:relative}.character-pad:before,.character-pad:after{content:"";background:var(--prsn-border);pointer-events:none;position:absolute}.character-pad:before{width:1px;top:25px;bottom:25px;left:50%}.character-pad:after{height:1px;top:50%;left:25px;right:25px}.character-pad>span:not(.pad-dot){color:var(--prsn-muted);font-size:9px;position:absolute}.pad-top{top:8px;left:50%;translate:-50%}.pad-bottom{bottom:8px;left:50%;translate:-50%}.pad-left{top:50%;left:8px;translate:0 -50%}.pad-right{top:50%;right:8px;translate:0 -50%}.pad-dot{background:var(--prsn-text);z-index:1;pointer-events:none;border-radius:50%;width:14px;height:14px;position:absolute;top:60%;left:50%;translate:-50% -50%;box-shadow:0 2px 8px #0005}.range-label{color:var(--prsn-muted);flex-wrap:wrap;justify-content:space-between;align-items:center;margin-top:17px;font-size:11px;display:flex}.range-label output{font:10px var(--prsn-mono)}.range-label input{width:100%;accent-color:var(--prsn-text);cursor:pointer;min-height:24px;margin:8px 0 0}.export-button{justify-content:space-between;width:100%;margin-top:24px;font-size:12px}.inspector-footnote{color:var(--prsn-muted);text-align:center;margin:12px 0 0;font-size:10px;line-height:1.6}.section-nav{z-index:5;background:var(--prsn-bg);border-bottom:1px solid var(--prsn-border);color:var(--prsn-muted);justify-content:center;gap:36px;margin:40px 0 0;padding:22px 0;font-size:12px;display:flex;position:sticky;top:0}.system-section{padding-top:100px;scroll-margin-top:10px}.palette{grid-template-columns:repeat(6,1fr);gap:12px;display:grid}.color-swatch{text-align:left;color:var(--prsn-text);background:0 0;border:0;min-width:0;padding:0}.color-swatch i{border:1px solid var(--prsn-subtle-line);background:var(--swatch);height:116px;transition:transform .16s var(--prsn-ease);border-radius:12px;margin-bottom:12px;display:block}.color-swatch:hover i{transform:translateY(-3px)}.color-swatch strong{font-size:13px;font-weight:500;display:block}.color-swatch code{font:10px var(--prsn-mono);color:var(--prsn-muted);margin-top:4px;display:block}.foundation-details{border-bottom:1px solid var(--prsn-border);grid-template-columns:1fr 1fr;gap:64px;padding:48px 0;display:grid}.foundation-details h3{margin-bottom:8px;font-size:18px;font-weight:500}.foundation-details p{font-size:13px}.spacing-scale{align-items:end;gap:18px;min-height:110px;display:flex}.spacing-scale span{font:10px var(--prsn-mono);color:var(--prsn-muted);flex-direction:column;align-items:center;gap:10px;display:flex}.spacing-scale i{background:var(--prsn-muted);border-radius:3px;width:20px;display:block}.radius-scale{justify-content:space-between;gap:12px;margin-top:26px;display:flex}.radius-scale i{background:var(--prsn-raised);border:1px solid var(--prsn-control-border);width:68px;height:64px;margin-bottom:12px;display:block}.radius-scale span{font:10px var(--prsn-mono);color:var(--prsn-muted)}.type-table>div{border-bottom:1px solid var(--prsn-border);grid-template-columns:240px 1fr;align-items:baseline;gap:24px;padding:28px 0;display:grid}.type-table p{margin:0}.type-room-welcome{font:400 clamp(32px, 4vw, 48px)/1.15 var(--prsn-font-editorial);letter-spacing:normal}.type-display{letter-spacing:-.04em;font-size:clamp(32px,5vw,64px);font-weight:500;line-height:1.2}.type-heading{letter-spacing:-.03em;font-size:clamp(28px,3.8vw,48px);font-weight:500;line-height:1.25}.type-title{letter-spacing:-.02em;font-size:24px;font-weight:500}.type-body{color:var(--prsn-muted);font-size:16px}.type-table code{font:13px var(--prsn-mono);color:var(--prsn-purple)}.component-grid{grid-template-columns:1fr 1fr;gap:20px;display:grid}.component-tile{border:1px solid var(--prsn-border);border-radius:var(--prsn-card-radius);min-width:0;padding:28px}.tile-heading{justify-content:space-between;align-items:center;margin-bottom:30px;display:flex}.tile-heading h3{margin:0;font-size:16px;font-weight:500}.button-examples{flex-wrap:wrap;gap:12px;display:flex}.tile-note{color:var(--prsn-muted);margin:24px 0 0;font-size:12px}.tab-content{padding-top:24px}.mini-sticker{background:var(--prsn-accent);width:36px;height:36px;color:var(--prsn-on-accent);border-radius:12px;place-items:center;margin-bottom:16px;font-weight:600;display:grid;transform:rotate(-8deg)}.mini-sticker.iris{background:var(--prsn-purple)}.mini-sticker.sage{background:var(--prsn-success)}.tab-content h4,.empty-state h4{margin:0 0 8px;font-size:19px;font-weight:500}.tab-content p,.empty-state p{color:var(--prsn-muted);margin-bottom:0;font-size:14px}.input-feedback{color:var(--prsn-muted);margin:8px 0 20px;font-size:12px}.input-feedback.error{color:var(--prsn-danger)}.radio-group{border:0;gap:24px;margin:0 0 20px;padding:0;display:flex}.radio-group legend{margin-bottom:8px}.radio-group label{cursor:pointer;align-items:center;gap:8px;min-height:44px;font-size:14px;display:flex}.radio-group input{width:17px;height:17px;accent-color:var(--prsn-accent)}.status-examples{flex-wrap:wrap;gap:10px;display:flex}.status-warning{color:var(--prsn-warning)}.status-danger{color:var(--prsn-danger)}.progress-caption{color:var(--prsn-muted);justify-content:space-between;margin-top:32px;font-size:12px;display:flex}.progress-caption output{font-family:var(--prsn-mono)}.feedback-actions{flex-wrap:wrap;gap:8px;margin-top:14px;display:flex}.feedback-actions .ds-button{margin-right:20px;padding-inline:0;font-size:12px}.ds-disclosure{border-top:1px solid var(--prsn-border);padding:16px 0}.ds-disclosure summary{justify-content:space-between;align-items:center;gap:16px;min-height:44px;font-size:14px;list-style:none;display:flex}.ds-disclosure summary::-webkit-details-marker{display:none}.ds-disclosure[open] summary span{rotate:45deg}.ds-disclosure p{color:var(--prsn-muted);max-width:44ch;margin:12px 0 0;font-size:14px}.empty-state{text-align:center;padding:0 16px 12px}.empty-state>span{color:var(--prsn-muted);margin-bottom:20px;font-size:42px;line-height:1;display:inline-block}.empty-state .ds-button{margin-top:24px}.room-pattern{background:var(--prsn-terminal);border:1px solid var(--prsn-border);border-radius:24px;height:520px;position:relative;overflow:hidden}.room-pattern>img{object-fit:cover;width:100%;height:100%;display:block}.room-pattern-top,.room-pattern-bottom{justify-content:space-between;align-items:center;gap:20px;display:flex;position:absolute;left:28px;right:28px}.room-pattern-top{top:24px}.room-pattern-bottom{align-items:end;bottom:24px}.room-pattern-bottom>div{background:var(--prsn-bg);border:1px solid var(--prsn-border);border-radius:16px;padding:24px}.room-pattern h3{letter-spacing:-.03em;margin:12px 0 0;font-size:34px;font-weight:500;line-height:1.15}.pattern-notes{grid-template-columns:repeat(3,1fr);gap:32px;margin-top:28px;display:grid}.pattern-notes p{color:var(--prsn-muted);font-size:14px}.pattern-notes span{color:var(--prsn-text);margin-bottom:10px;display:block}.principles-section{text-align:center;padding:130px 0 100px}.principles-section>.ds-label{margin-bottom:20px}.principles-copy{color:var(--prsn-muted);margin:24px 0 40px}.terminal{text-align:left;background:var(--prsn-terminal);border:1px solid var(--prsn-border);border-radius:16px;max-width:780px;margin:0 auto 24px;overflow:hidden}.terminal-title{color:var(--prsn-muted);border-bottom:1px solid var(--prsn-border);font:10px var(--prsn-mono);justify-content:space-between;padding:15px 20px;display:flex}.terminal-title>span:first-child{color:#73736c;letter-spacing:4px}.terminal pre{white-space:pre-wrap;overflow-wrap:anywhere;font:12px/2 var(--prsn-mono);margin:0;padding:28px}.code-muted{color:var(--prsn-muted)}.code-teal{color:var(--prsn-accent)}.code-purple{color:var(--prsn-purple)}.site-footer{border-top:1px solid var(--prsn-border);color:var(--prsn-muted);justify-content:space-between;align-items:center;gap:24px;padding:32px 0;font-size:12px;display:flex}.site-footer .brand{color:var(--prsn-text);font-size:22px}.toast{z-index:20;background:var(--prsn-text);color:var(--prsn-bg);width:max-content;max-width:calc(100% - 32px);box-shadow:var(--prsn-shadow);border-radius:12px;padding:0;font-size:13px;position:fixed;bottom:24px;left:50%;translate:-50%}.toast:not(:empty){padding:14px 20px}.quiet-mode *,.quiet-mode :before,.quiet-mode :after{scroll-behavior:auto!important;transition:none!important;animation:none!important}.quiet-mode{scroll-behavior:auto!important}.signature-grid{grid-template-columns:1fr 1fr;gap:24px;display:grid}.material-stage{min-height:350px;display:grid;position:relative;overflow:hidden}.material-stage>img{object-fit:cover;opacity:.7;width:100%;height:100%;position:absolute}.material-stage:after{content:"";background:var(--prsn-stage-scrim);pointer-events:none;position:absolute;inset:0}.material-stage-content{z-index:1;flex-direction:column;justify-content:space-between;gap:40px;padding:28px;display:flex;position:relative}.material-stage-content>.ds-label{color:var(--prsn-text);text-shadow:var(--prsn-glass-text-shadow)}.glass-actions{justify-content:center;align-items:center;gap:12px;display:flex}.glass-actions .ds-button{min-height:52px;padding-inline:22px}.glass-actions .ds-button--icon{width:52px;padding:0;font-size:22px}.material-loader .progress-caption{color:var(--prsn-muted);margin:0;font-size:11px}.material-loader .ds-glow-track{margin:16px 0 4px}.material-caption h3{letter-spacing:-.02em;margin:0 0 8px;font-size:18px;font-weight:500}.material-caption p{color:var(--prsn-muted);max-width:48ch;margin:0;font-size:13px;line-height:1.7}.avatar-stage{background:radial-gradient(ellipse at 50% 30%,#6b938719,transparent 65%),var(--prsn-terminal);min-height:350px;padding:24px 28px}.avatar-stage-top{justify-content:space-between;align-items:center;gap:16px;display:flex}.avatar-stage-top .ds-label{font-size:10px}.avatar-orbit{border:1px solid var(--prsn-subtle-line);border-radius:50%;place-items:center;width:88px;height:88px;margin:26px 0 18px;display:grid;position:relative}.avatar-orbit:before{content:"";border:1px solid var(--prsn-subtle-line);border-radius:inherit;position:absolute;inset:7px}.orbit-spark{color:var(--prsn-warning);text-shadow:1px 2px #805d37;font-size:30px;position:absolute;bottom:0;right:-8px;transform:rotate(-15deg)}.avatar-stage h3{letter-spacing:-.035em;margin-bottom:12px;font-size:32px;font-weight:500;line-height:1.12}.avatar-stage>p{color:var(--prsn-muted);margin:0;font-size:12px}@media 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