@layer demo-ui{:root{--color-primary: #1f3a5f;--color-primary-soft: #2e4a74;--color-accent: #b8860b;--color-accent-soft: #f5e6c8;--color-highlight: #ffd98a;--color-bg: #eef3f8;--color-bg-alt: #f4f7fa;--color-line: #d8e0ea;--color-text: #4a4a4a;--color-success: #1e7b34;--color-muted: #667286;--font-sans: "Segoe UI", system-ui, -apple-system, Helvetica, Arial, sans-serif;--radius-card: 14px;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.5rem;--space-6: 2rem;--focus-ring: 0 0 0 3px rgba(184, 134, 11, .35);--soft-shadow: 0 8px 24px rgba(31, 58, 95, .08)}:where(*,*:before,*:after){box-sizing:border-box}:where(html,body){margin:0;overflow-x:clip}:where(body){min-width:0;background:var(--color-bg);color:var(--color-text);font-family:var(--font-sans)}:where(img,svg,video,canvas){max-width:100%}:where(button,input,select,textarea){font:inherit}:where(button,[type=button],[type=submit],[type=reset],.button,.tab,[role=tab]){min-height:44px}:where(button,[type=button],[type=submit],[type=reset],.button,.tab,[role=tab],a):focus-visible{outline:var(--focus-ring);outline-offset:2px}:where(h1){font-size:clamp(1.5rem,4vw,1.9rem)}:where(h2){font-size:clamp(1.25rem,3vw,1.5rem)}:where(h3){font-size:1.05rem}:where(.card){min-width:0;border:1px solid var(--color-line);border-radius:var(--radius-card);box-shadow:var(--soft-shadow)}:where(button,.button){touch-action:manipulation}:where(.table-scroll){max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}:where(.table-scroll>table){min-width:600px}:where(.table-scroll th){white-space:nowrap}:where(.tabs,[role=tablist]){display:flex;max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}:where(.tabs>*,[role=tablist]>*){flex-shrink:0}:where(.brand-footer){min-width:0;border-top:1px solid var(--color-line);color:var(--color-muted)}:where(.brand-footer a){display:inline-flex;min-height:44px;align-items:center}:where(.brand-eyebrow){color:var(--color-muted)}}:root{--radius-card-sm: 10px;--radius-card-md: 14px;--radius-card-lg: 20px}*,*:before,*:after{box-sizing:border-box}html,body,#root{margin:0;min-height:100%;overflow-x:clip}body{font-family:var(--font-sans);color:var(--color-text);background:linear-gradient(180deg,var(--color-bg) 0%,var(--color-bg-alt) 100%)}.app-shell{width:min(1100px,100%);margin:0 auto;padding:var(--space-5);display:grid;grid-template-columns:minmax(0,1fr);gap:var(--space-5)}h1,h2,h3,p,span{overflow-wrap:anywhere}h2{margin:0;color:var(--color-primary)}h3{margin:0 0 var(--space-3);color:var(--color-primary-soft)}.card{background:#fff;border:1px solid var(--color-line);border-radius:var(--radius-card-md);box-shadow:var(--soft-shadow);min-width:0}.app-header{background:linear-gradient(140deg,var(--color-primary) 0%,var(--color-primary-soft) 100%);color:#fff;padding:var(--space-6);border:1px solid rgba(255,255,255,.2)}.app-header h1,.app-header p{margin:0}.app-header h1{margin-top:var(--space-2);font-size:clamp(1.7rem,4vw,2.4rem)}.eyebrow{opacity:.85;font-size:.875rem}.lede{margin-top:var(--space-4);line-height:1.55;max-width:72ch}.callout{padding:var(--space-4);border-radius:var(--radius-card-sm);line-height:1.55}.callout-info{background:var(--color-accent-soft);border:1px solid var(--color-highlight);color:#523901}.callout p{margin:0}.foundation-panel{padding:var(--space-5)}.foundation-panel p{margin:0 0 var(--space-3);line-height:1.55}.foundation-panel p:last-child{margin-bottom:0}.validation-summary{display:grid;grid-template-columns:minmax(0,1fr);gap:var(--space-3);margin-top:var(--space-4)}.validation-item{display:grid;grid-template-columns:minmax(0,1fr);gap:var(--space-1);padding:var(--space-3);border:1px solid var(--color-line);border-radius:var(--radius-card-sm);background:var(--color-bg-alt)}.validation-item strong{color:var(--color-primary)}.status-fail{color:#a11;font-weight:600}a{color:var(--color-primary-soft);min-height:44px}a:focus-visible{outline:none;box-shadow:var(--focus-ring)}button:focus-visible,[role=tab]:focus-visible{outline:none;box-shadow:var(--focus-ring)}@media (max-width: 720px){.app-shell{padding:var(--space-3);gap:var(--space-3)}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}.table-scroll{-webkit-overflow-scrolling:touch}.table-scroll table{min-width:600px}.table-scroll th,.table-scroll td{overflow-wrap:normal;word-break:normal;-webkit-hyphens:none;hyphens:none}.table-scroll th{white-space:nowrap}:where(h1){font-size:clamp(1.5rem,4vw,1.9rem)}:where(h2){font-size:clamp(1.25rem,3vw,1.5rem);margin:0 0 var(--space-3)}:where(h3){font-size:1.05rem;margin:0 0 var(--space-3)}.panel-stack{display:grid;grid-template-columns:minmax(0,1fr);gap:var(--space-5);min-width:0}.panel-padding{padding:var(--space-5);min-width:0}.panel-lede{margin:0 0 var(--space-4);line-height:1.55;color:#5a6472;max-width:72ch}.panel-note{margin:var(--space-4) 0 0;font-size:.9rem;line-height:1.5;color:#5a6472}.tab-nav{padding:var(--space-2);min-width:0}.tab-list{display:flex;gap:var(--space-2);overflow-x:auto;scrollbar-width:thin;padding-bottom:var(--space-1);min-width:0}.tab-button{min-height:44px;border:1px solid transparent;border-radius:var(--radius-card-sm);padding:0 var(--space-4);background:transparent;color:var(--color-primary-soft);font-size:.95rem;font-weight:600;white-space:nowrap;flex-shrink:0;cursor:pointer;min-width:0}.tab-button[aria-selected=true]{background:var(--color-accent-soft);border-color:var(--color-accent);color:#523901}.tab-content{min-width:0}.metric-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-4);min-width:0}.metric-card{padding:var(--space-4);border:1px solid var(--color-line);border-radius:var(--radius-card-sm);background:var(--color-bg-alt);min-width:0}.metric-card__title{margin:0 0 var(--space-2);font-size:.9rem;color:var(--color-primary-soft)}.metric-card__value{margin:0;font-size:1.35rem;font-weight:700;color:var(--color-primary)}.metric-card__detail{margin:var(--space-2) 0 0;font-size:.9rem;line-height:1.45}.metric-card__note{margin:var(--space-2) 0 0;font-size:.85rem;line-height:1.45;color:#5a6472;border-top:1px solid var(--color-line);padding-top:var(--space-2)}.walkthrough-stages{list-style:none;margin:0 0 var(--space-4);padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--space-2);min-width:0}.walkthrough-stage{min-width:0}.walkthrough-stage__button{width:100%;min-height:44px;display:grid;grid-template-columns:minmax(0,auto) minmax(0,1fr);gap:var(--space-2);align-items:center;padding:var(--space-3);border:1px solid var(--color-line);border-radius:var(--radius-card-sm);background:#fff;cursor:pointer;text-align:left;min-width:0}.walkthrough-stage.is-active .walkthrough-stage__button{border-color:var(--color-accent);background:var(--color-accent-soft)}.walkthrough-stage__number{font-weight:700;color:var(--color-primary)}.walkthrough-stage__title{font-size:.85rem;line-height:1.3}.walkthrough-content{padding:var(--space-4);border:1px solid var(--color-line);border-radius:var(--radius-card-sm);background:var(--color-bg-alt);min-width:0}.walkthrough-content p{margin:0;line-height:1.55}.walkthrough-controls{display:flex;flex-wrap:wrap;gap:var(--space-3);margin-top:var(--space-4)}.btn-primary,.btn-secondary{min-height:44px;padding:0 var(--space-4);border-radius:var(--radius-card-sm);font-weight:600;cursor:pointer;border:1px solid var(--color-line)}.btn-primary{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.btn-primary:disabled,.btn-secondary:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{background:#fff;color:var(--color-primary-soft)}.finding-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:minmax(0,1fr);gap:var(--space-3)}.finding-item{padding:var(--space-3);border:1px solid var(--color-line);border-radius:var(--radius-card-sm);background:var(--color-bg-alt);min-width:0}.finding-item p{margin:var(--space-2) 0 0;line-height:1.55}.comparison-filters{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-4);margin-bottom:var(--space-4);min-width:0}.filter-field{display:grid;grid-template-columns:minmax(0,1fr);gap:var(--space-2);min-width:0}.filter-label{font-size:.85rem;font-weight:600;color:var(--color-primary-soft)}.filter-input,.filter-select{min-height:44px;padding:var(--space-2) var(--space-3);border:1px solid var(--color-line);border-radius:var(--radius-card-sm);font:inherit;width:100%;min-width:0}.table-scroll{width:100%;overflow-x:auto;min-width:0}.comparison-table,.scope-table{width:100%;border-collapse:collapse;font-size:.9rem}.comparison-table th,.comparison-table td,.scope-table th,.scope-table td{padding:var(--space-3);border-bottom:1px solid var(--color-line);vertical-align:top;text-align:left;min-width:0}.comparison-table thead th{background:var(--color-bg-alt);font-weight:600;color:var(--color-primary)}.sort-button{min-height:44px;background:none;border:none;font:inherit;font-weight:600;color:inherit;cursor:pointer;padding:0;text-align:left}.row-expand-button{display:flex;align-items:flex-start;gap:var(--space-2);min-height:44px;background:none;border:none;font:inherit;color:var(--color-primary);cursor:pointer;text-align:left;padding:0;width:100%;min-width:0}.row-expand-icon{flex-shrink:0;font-weight:700;width:1.25rem}.comparison-row-detail td{background:var(--color-bg-alt)}.row-detail-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-4);min-width:0}.row-detail-grid p{margin:var(--space-1) 0 0;line-height:1.5}.verdict-badge{display:inline-block;padding:var(--space-1) var(--space-2);border-radius:var(--radius-card-sm);font-size:.85rem;font-weight:600;border:1px solid var(--color-line);max-width:100%}.verdict-badge--reproduced{background:#e8f5ec;border-color:#a8d4b4;color:var(--color-success)}.verdict-badge--pattern{background:var(--color-accent-soft);border-color:var(--color-highlight);color:#523901}.verdict-badge--sublinear{background:var(--color-bg);border-color:var(--color-line);color:var(--color-primary-soft)}.verdict-badge__label{font-weight:400}.table-footnote{margin:var(--space-3) 0 0;font-size:.85rem;color:#5a6472}.empty-row{text-align:center;color:#5a6472}.fit-comparison-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-4);min-width:0}.fit-card{padding:var(--space-4);border:1px solid var(--color-line);border-radius:var(--radius-card-sm);min-width:0}.fit-card--rejected{border-color:#d4a8a8;background:#fdf5f5}.fit-card--not-rejected{border-color:#a8d4b4;background:#f5faf6}.fit-stats{margin:0}.fit-stats div{margin-bottom:var(--space-3)}.fit-stats dt{font-size:.8rem;font-weight:600;color:var(--color-primary-soft)}.fit-stats dd{margin:var(--space-1) 0 0;line-height:1.45}.fit-interpretation{margin:var(--space-3) 0 0;font-size:.9rem;line-height:1.5}.vuong-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-4);min-width:0}.vuong-stat{padding:var(--space-4);border:1px solid var(--color-line);border-radius:var(--radius-card-sm);background:var(--color-bg-alt);min-width:0}.vuong-stat--highlight{background:var(--color-accent-soft);border-color:var(--color-highlight)}.vuong-label{display:block;font-size:.8rem;font-weight:600;color:var(--color-primary-soft);margin-bottom:var(--space-2)}.vuong-stat p{margin:0;line-height:1.45}.model-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-4);min-width:0}.model-card{padding:var(--space-4);border:1px solid var(--color-line);border-radius:var(--radius-card-sm);background:var(--color-bg-alt);min-width:0}.model-card__r2{margin:0;font-size:1.2rem;font-weight:700;color:var(--color-primary)}.model-card__highlight{margin:var(--space-2) 0 0;font-size:.9rem;line-height:1.45}.model-card__note{margin:var(--space-2) 0 0;font-size:.85rem;line-height:1.45;color:#5a6472}.regression-contrast{margin-top:var(--space-4)}.validation-check-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:minmax(0,1fr);gap:var(--space-3)}.validation-check-item{padding:var(--space-4);border:1px solid var(--color-line);border-radius:var(--radius-card-sm);background:var(--color-bg-alt);min-width:0}.validation-check-header{display:flex;flex-wrap:wrap;justify-content:space-between;gap:var(--space-2);align-items:center}.validation-check-rule{margin:var(--space-2) 0 0;line-height:1.5;color:#5a6472}.methods-narrative{margin:0;line-height:1.6}.limitation-list{margin:0;padding-left:var(--space-5);line-height:1.55}.limitation-list li{margin-bottom:var(--space-2)}.scope-status{font-weight:600;font-size:.85rem}.scope-status--included{color:var(--color-success)}.scope-status--excluded{color:#8a4a12}.citation-dl{margin:0;display:grid;grid-template-columns:minmax(0,1fr);gap:var(--space-3)}.citation-dl dt{font-size:.8rem;font-weight:600;color:var(--color-primary-soft)}.citation-dl dd{margin:var(--space-1) 0 0;line-height:1.45}.citation-dl a{display:inline;min-height:auto}.status-pass{color:var(--color-success);font-weight:600}.site-footer{text-align:center}.footer-tagline{margin:0 0 var(--space-2);font-weight:600;color:var(--color-primary)}.footer-links{display:flex;justify-content:center;flex-wrap:wrap;gap:var(--space-2);margin-bottom:var(--space-2)}.footer-gallery{margin:0;font-size:.9rem;color:#5a6472}.export-panel h2{margin-bottom:var(--space-3)}.export-menu{position:relative;min-width:0}.export-trigger{min-width:12rem}.export-dropdown{list-style:none;margin:var(--space-2) 0 0;padding:var(--space-2);border:1px solid var(--color-line);border-radius:var(--radius-card-sm);background:#fff;box-shadow:var(--soft-shadow);min-width:min(100%,16rem)}.export-item{display:block;width:100%;min-height:44px;padding:var(--space-2) var(--space-3);border:none;background:transparent;text-align:left;font:inherit;font-weight:600;color:var(--color-primary-soft);cursor:pointer}.export-item:hover,.export-item:focus-visible{background:var(--color-bg-alt)}.export-error{margin:var(--space-2) 0 0;color:#a11;font-size:.9rem}@media (max-width: 900px){.metric-grid{grid-template-columns:minmax(0,1fr)}.walkthrough-stages{grid-template-columns:repeat(2,minmax(0,1fr))}.fit-comparison-grid,.vuong-grid,.model-grid,.comparison-filters,.row-detail-grid{grid-template-columns:minmax(0,1fr)}}@media (max-width: 720px){.panel-padding{padding:var(--space-4)}.walkthrough-stages{grid-template-columns:minmax(0,1fr)}.walkthrough-controls{flex-direction:column}.walkthrough-controls .btn-primary,.walkthrough-controls .btn-secondary{width:100%}}@media (max-width: 360px){.panel-stack{gap:var(--space-3)}}