@layer base, layout, components, responsive;
@layer base {
  :root{--paper:#fcfcf9;--surface:#fff;--ink:#25333a;--muted:#57656d;--line:#d6dcd9;--navy:#243c4a;--accent:#8e563b;--tint:#f1f4f2;--blue:#3b667b;--warm:#a16340;--olive:#657363;--error:#a02c2c;--space:8px;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--paper);font-size:16px;font-synthesis:none;scroll-behavior:smooth}
  *{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration-thickness:1px;text-underline-offset:4px}button,input,select,textarea{font:inherit;color:inherit}button,a,input,select,textarea,summary{touch-action:manipulation}button,a,summary{cursor:pointer}button{border:0}img,svg{display:block;max-width:100%}input,select,textarea{border-radius:4px}h1,h2,h3,h4,p{margin:0}h1,h2{font-family:Georgia,'Times New Roman',serif;font-weight:400;letter-spacing:-.035em;text-wrap:balance}p{line-height:1.6}button:disabled{opacity:.65;cursor:wait}[hidden]{display:none!important}:focus-visible{outline:3px solid var(--navy);outline-offset:4px}::selection{background:#e0e7df}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;border:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.skip{position:fixed;top:8px;left:8px;padding:12px;background:var(--navy);color:white;z-index:100;transform:translateY(-150%)}.skip:focus{transform:none}
}
@layer layout {
  .shell{max-width:1248px;margin:0 auto;padding-left:48px;padding-right:48px}.site-header{display:flex;align-items:center;justify-content:space-between;padding:24px 48px;max-width:1440px;margin:auto;border-bottom:1px solid var(--line);gap:32px}.wordmark{display:flex;gap:12px;align-items:center;text-decoration:none;line-height:1.15;font-size:14px;letter-spacing:.015em}.wordmark svg{width:36px;stroke:var(--navy);stroke-width:2;fill:none}.wordmark strong{font-size:17px}.site-header nav{display:flex;gap:32px;align-items:center}.nav-link{font-size:14px;text-decoration:none;padding:14px 0;border-bottom:1px solid transparent}.nav-link:hover,.nav-link.active{border-color:var(--navy)}.local-status{display:flex;gap:8px;align-items:center;font-size:12px;color:var(--muted)}.local-status i{width:6px;height:6px;background:var(--olive);border-radius:50%}
  .hero{display:grid;grid-template-columns:1.05fr 1fr;align-items:center;gap:64px;padding-top:64px;padding-bottom:64px}.hero h1{font-size:clamp(40px,4.3vw,60px);line-height:1.06;margin-top:20px}.hero-description{font-size:17px;color:var(--muted);max-width:430px;margin-top:24px}.hero-meta{margin-top:24px;font-size:12px;letter-spacing:.02em;color:var(--muted)}.hero-meta span{padding:0 10px}.eyebrow{font-size:10px;letter-spacing:.16em;line-height:1.4;font-weight:700;color:var(--muted)}.hero-visual{border-top:1px solid var(--ink);padding-top:16px}.visual-top{display:flex;justify-content:space-between;gap:16px;font-size:12px}.smallcaps{font-size:9px;letter-spacing:.1em;color:var(--muted);line-height:1.5}.hero-visual svg{width:100%;margin-top:24px;overflow:visible}.chart-grid path{stroke:var(--line);stroke-width:.6;fill:none}.hero-signal{stroke:var(--navy);stroke-width:2;fill:none}.hero-memory{stroke:var(--warm);stroke-width:1.8;fill:none}.hero-memory-long{stroke:var(--olive);stroke-width:1.8;stroke-dasharray:4 3;fill:none}.axis-text{font-size:10px;fill:var(--muted)}.visual-legend{display:flex;flex-wrap:wrap;gap:16px;margin-top:16px;font-size:10px;color:var(--muted)}.visual-legend span{display:flex;align-items:center;gap:6px}.line{width:16px;height:0;border-top:2px solid var(--navy)}.line.memory{border-color:var(--warm)}.line.long-memory{border-color:var(--olive);border-top-style:dashed}.visual-note{font-size:10px;color:var(--muted);margin-top:12px}
  .workspace{padding-bottom:80px}.workspace-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;border-top:1px solid var(--line);padding-top:32px;margin-bottom:32px}.workspace-head h2{font-size:32px;line-height:1.2;margin-top:8px}.workspace-grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:48px;align-items:start}.form-section{padding:0 0 32px;margin-bottom:32px;border-bottom:1px solid var(--line)}.section-head{display:flex;gap:16px;margin-bottom:24px;align-items:flex-start}.step-number{font-size:11px;line-height:25px;color:var(--accent);border-top:1px solid var(--accent);margin-top:1px;min-width:24px}.section-head h3{font-size:17px;font-weight:600;line-height:1.4}.section-head p{font-size:12px;color:var(--muted);margin-top:4px}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 24px}.field{min-width:0;display:flex;flex-direction:column;gap:8px}.field label{font-size:12px;font-weight:600;line-height:1.5}.unit{font-size:11px;font-weight:400;color:var(--muted)}.required{color:var(--accent)}input,select,textarea{width:100%;background:var(--surface);border:1px solid #a7b4b6;padding:12px;min-height:46px;font-size:15px}input:hover,select:hover,textarea:hover{border-color:var(--navy)}input[aria-invalid=true],select[aria-invalid=true],textarea[aria-invalid=true]{border-color:var(--error);box-shadow:0 0 0 1px var(--error)}input::placeholder,textarea::placeholder{color:#6d787e;opacity:1}small,.helper{font-size:11px;line-height:1.6;color:var(--muted)}.field-error{font-size:11px;color:var(--error);line-height:1.5}.field-error:empty{display:none}.lab-details{margin-top:24px;background:var(--tint);border:1px solid var(--line);padding:16px 20px}summary{font-size:13px;line-height:1.7;padding:4px 0}summary:hover{color:var(--accent)}.lab-details summary span{float:right;color:var(--muted);font-size:11px;font-weight:400}.lab-details[open] summary{margin-bottom:12px}.lab-header,.lab-row{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:12px;align-items:center}.lab-header{font-size:10px;color:var(--muted);margin-top:20px;padding-bottom:8px;border-bottom:1px solid var(--line)}.lab-row{padding-top:12px}.lab-name{font-size:12px}.lab-name span{display:block;font-size:10px;color:var(--muted);margin-top:4px}.lab-row input{min-width:0;font-size:14px}.lab-row .field-error{grid-column:2/4}.duration-field{max-width:300px;margin-bottom:20px}.observation-actions{display:flex;gap:20px;align-items:center;margin-bottom:20px}.file-button{cursor:pointer}textarea{font-family:'SFMono-Regular',Consolas,'Liberation Mono',monospace;font-size:13px;line-height:1.75;resize:vertical;min-height:156px;tab-size:2}.compact-details{margin-top:14px}.compact-details summary{font-size:11px;color:var(--muted)}.compact-details p{font-size:12px;color:var(--muted);margin-top:8px}.initialise-section{border-bottom:0;padding-bottom:0;margin-bottom:0}.download-info{display:flex;gap:12px;padding:16px 0 20px}.download-info svg{width:19px;height:20px;stroke:var(--navy);stroke-width:1.3;fill:none;flex-shrink:0;margin-top:2px}.download-info p{font-size:12px}.download-info p span{color:var(--muted);font-size:11px}.status-message{font-size:11px;min-height:19px;margin-top:12px;color:var(--muted)}progress{display:block;width:100%;height:5px;accent-color:var(--navy);margin-top:16px}.error-summary{border:1px solid var(--error);padding:16px;margin-bottom:24px;color:var(--error);font-size:13px;line-height:1.6}.error-summary ul{padding-left:20px;margin:8px 0 0}
}
@layer components {
  input.visually-hidden{width:1px;height:1px;min-height:0;padding:0;border:0}.observation-actions:has(#csv-file:focus-visible) .file-button{outline:3px solid var(--navy);outline-offset:4px}
  .primary-button,.secondary-button{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:44px;border-radius:3px;text-decoration:none;font-weight:600;transition:background .15s ease,border-color .15s ease;color:var(--ink);font-size:12px;line-height:1.4}.primary-button{padding:16px 24px;background:var(--navy);color:#fff;width:100%;justify-content:space-between;min-height:52px;font-size:14px}.primary-button:hover{background:#334f5e}.primary-button svg,.secondary-button svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.5}.secondary-button{padding:10px 14px;background:var(--surface);border:1px solid #a7b4b6}.secondary-button:hover{border-color:var(--navy);background:var(--tint)}.text-button{display:inline-flex;gap:12px;align-items:center;background:transparent;padding:12px 0;font-size:11px;text-decoration:underline;text-underline-offset:4px;line-height:1.5}.text-button:hover{color:var(--accent)}.results-panel{position:sticky;top:24px;min-width:0;background:var(--tint);padding:28px;border-top:2px solid var(--navy)}.results-head{display:flex;align-items:center;justify-content:space-between;gap:8px}.version-badge{font-size:9px;line-height:1.5;color:var(--muted);max-width:160px;overflow-wrap:anywhere}.results-panel h3{font-family:Georgia,'Times New Roman',serif;font-size:32px;line-height:1.18;font-weight:400;margin-top:24px;letter-spacing:-.02em}.empty-plot{position:relative;margin-top:36px;margin-bottom:24px;height:80px;display:flex;justify-content:space-between;flex-direction:column}.empty-plot span{display:block;border-bottom:1px solid var(--line);width:100%}.empty-plot i{position:absolute;top:30px;left:0;width:100%;height:32px;border-top:2px solid #a8b7b8;clip-path:polygon(0 25%,15% 5%,30% 45%,45% 25%,60% 10%,80% 40%,100% 15%,100% 100%,0 100%);background:linear-gradient(to bottom,#c8d2d0 1px,transparent 2px)}#result-empty>p{font-size:13px;color:var(--muted)}.result-explainer{display:grid;grid-template-columns:20px 1fr;gap:16px 8px;border-top:1px solid var(--line);padding-top:24px;margin-top:28px}.result-explainer span{font-size:9px;line-height:20px;color:var(--accent)}.result-explainer p{font-size:11px;color:var(--muted)}.research-label{font-size:9px;color:var(--muted);padding-top:24px;margin-top:28px;border-top:1px solid var(--line)}.result-label{margin-top:28px;font-size:12px;color:var(--muted)}.risk-value{font-size:58px;letter-spacing:-.06em;font-family:Georgia,serif;line-height:1.2;margin-top:4px;font-variant-numeric:tabular-nums}.result-subtitle{font-size:10px;color:var(--muted)}.probability-comparison{margin-top:28px;display:grid;gap:16px}.probability-comparison>div{display:grid;grid-template-columns:1fr auto;gap:8px;font-size:11px}.probability-comparison strong{font-weight:600;font-variant-numeric:tabular-nums}.comparison-track{grid-column:1/3;height:3px;background:#dce3df}.comparison-track i{height:100%;display:block;background:var(--navy)}#static-bar{background:var(--olive)}#physiology-bar{background:var(--warm)}.change-note{font-size:11px;margin-top:20px;color:var(--muted)}.support-box{margin-top:24px;padding-top:20px;border-top:1px solid var(--line)}h4{font-size:12px;line-height:1.5;font-weight:600}.support-box p{font-size:10px;margin-top:12px;color:var(--muted)}#coverage-values{display:flex;justify-content:space-between;margin-top:12px;font-size:11px;font-variant-numeric:tabular-nums}.profile-chart-wrap{margin-top:24px;padding-top:20px;border-top:1px solid var(--line)}#profile-chart{margin-top:12px}.chart-key{display:flex;gap:12px;flex-wrap:wrap;font-size:9px;color:var(--muted);margin-top:8px}.hr-key{color:var(--blue)}.map-key{color:var(--warm)}.spo2-key{color:var(--olive)}.technical-result{margin-top:20px}.technical-result summary{font-size:11px}.technical-result dl{font-size:10px;line-height:1.6;display:grid;grid-template-columns:1fr auto;gap:6px;margin:12px 0 20px}.technical-result dd{margin:0;text-align:right;font-variant-numeric:tabular-nums}.technical-result dt{color:var(--muted)}#export-result{margin-top:20px;width:100%;font-size:11px}
  .research-section{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#f3f3ee;padding:64px 0}.research-intro{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:end}.research-intro h2,.methods-section h2{font-size:42px;line-height:1.12;margin-top:16px}.research-intro>p{font-size:14px;color:var(--muted);max-width:440px}.study-strip{display:grid;grid-template-columns:repeat(4,1fr);margin-top:40px;padding:28px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.study-strip>div{padding-left:24px;border-left:1px solid var(--line)}.study-strip>div:first-child{padding-left:0;border:0}.study-strip strong{display:block;font-family:Georgia,serif;font-size:36px;font-weight:400;letter-spacing:-.03em;font-variant-numeric:tabular-nums}.study-strip span{display:block;font-size:10px;margin-top:8px;color:var(--muted)}.research-findings{display:grid;grid-template-columns:1fr 1fr;gap:64px;margin-top:40px}.research-findings h3{font-family:Georgia,serif;font-size:24px;font-weight:400;line-height:1.3;margin-top:12px}.research-findings p{font-size:13px;color:var(--muted);margin-top:16px}.research-findings a,.methods-diagram a{display:inline-block;font-size:11px;margin-top:20px}.methods-section{display:grid;grid-template-columns:1fr 1.1fr;gap:56px;align-items:center;padding-top:64px;padding-bottom:64px}.methods-copy p:not(.eyebrow){font-size:13px;color:var(--muted);margin-top:20px}.methods-diagram img{width:100%;height:auto;object-fit:contain}.methods-diagram a{display:block;text-align:right}.site-footer{display:flex;justify-content:space-between;gap:40px;border-top:1px solid var(--line);padding-top:32px;padding-bottom:40px;font-size:11px}.site-footer p{font-size:10px;color:var(--muted);max-width:440px;margin-top:8px}.site-footer>div:last-child{text-align:right}.footer-note{display:block;font-size:9px;color:var(--muted);margin-top:8px}
}
@layer responsive {
  @media(min-width:1500px){.site-header{max-width:1248px}.hero{padding-top:80px;padding-bottom:80px}}
  @media(max-width:1000px){.shell{padding-left:32px;padding-right:32px}.site-header{padding:20px 32px}.local-status{display:none}.hero{gap:40px}.hero h1{font-size:48px}.workspace-grid{gap:32px;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr)}.results-panel{padding:22px}.results-panel h3{font-size:28px}.research-intro,.research-findings{gap:40px}.research-intro h2,.methods-section h2{font-size:36px}.methods-section{gap:32px}}
  @media(max-width:760px){.shell{padding-left:24px;padding-right:24px}.site-header{padding:16px 24px;gap:20px}.wordmark{font-size:11px;gap:8px}.wordmark strong{font-size:14px}.wordmark svg{width:28px}.site-header nav{gap:18px}.nav-link{font-size:11px}.hero{grid-template-columns:1fr;gap:32px;padding-top:40px;padding-bottom:40px}.hero h1{font-size:48px}.hero-description{font-size:16px}.hero-visual{max-width:550px;width:100%}.hero-visual svg{margin-top:16px}.workspace-head{align-items:start;flex-direction:column;gap:8px;padding-top:28px;margin-bottom:28px}.workspace-head h2{font-size:29px}.workspace-head .text-button{padding:8px 0}.workspace-grid{grid-template-columns:1fr;gap:36px}.results-panel{position:static;padding:24px}.results-panel h3 br{display:none}.results-panel h3{font-size:30px}.result-explainer{grid-template-columns:24px 1fr}.empty-plot{margin-top:24px;height:64px}.form-section{margin-bottom:28px;padding-bottom:28px}.field-grid{gap:20px 16px}.field label{font-size:12px}input,select,textarea{font-size:16px}.lab-details{padding:16px}.lab-row{grid-template-columns:1.1fr 1fr 1fr;gap:8px}.lab-header{grid-template-columns:1.1fr 1fr 1fr;gap:8px}.lab-row input{font-size:16px;padding:10px 8px}.lab-name{font-size:11px}.lab-name span{font-size:9px}.observation-actions{gap:16px;justify-content:space-between}.file-button{font-size:11px}.observation-actions .text-button{font-size:10px}.duration-field{max-width:none}.research-section{padding:40px 0}.research-intro{grid-template-columns:1fr;gap:24px}.research-intro h2,.methods-section h2{font-size:36px}.study-strip{grid-template-columns:1fr 1fr;gap:24px;margin-top:28px}.study-strip>div{padding-left:20px}.study-strip>div:nth-child(3){border-left:0;padding-left:0}.study-strip strong{font-size:34px}.research-findings{grid-template-columns:1fr;gap:32px;margin-top:32px}.methods-section{grid-template-columns:1fr;padding-top:40px;padding-bottom:40px;gap:32px}.site-footer{flex-direction:column;gap:24px;padding-top:28px;padding-bottom:32px}.site-footer>div:last-child{text-align:left}.workspace{padding-bottom:48px}}
  @media(max-width:400px){.shell{padding-left:20px;padding-right:20px}.site-header{padding-left:20px;padding-right:20px}.site-header nav{gap:12px}.nav-link{font-size:10px}.hero h1{font-size:43px}.visual-top{font-size:11px}.smallcaps{font-size:8px}.lab-details{padding:12px}.lab-row input{padding:8px 6px}}
  @media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}
}