/* Editorial aesthetic, native CSS. DESIGN_VARIANCE 6, MOTION_INTENSITY 3,
   VISUAL_DENSITY 4: quiet motion, visible evidence, one light theme. */
:root{--paper:#fafbfc;--white:#fff;--ink:#162335;--muted:#526175;--line:#d9e0e8;--accent:#174dcc;--soft:#edf2fc;--radius:8px;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:100px}
body{margin:0;font-size:16px;line-height:1.6}
button,input,select{font:inherit}
button,a,select,input{touch-action:manipulation}
button{color:inherit;cursor:pointer}
a{color:var(--accent);text-underline-offset:4px}
button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
button:disabled{cursor:default}
h1,h2,h3,p,figure,blockquote{margin:0}
h1,h2,h3{line-height:1.08;letter-spacing:-.045em}
p+p{margin-top:16px}
.wrap{max-width:1280px;padding-inline:48px;margin-inline:auto}
.skip{position:absolute;top:-90px;left:20px;background:white;padding:12px;z-index:30}
.skip:focus{top:10px}
.site-header{height:88px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:24px;padding:0 48px;max-width:1600px;margin:auto}
.wordmark{font-weight:750;font-size:17px;text-decoration:none;color:var(--ink);line-height:1.2;white-space:nowrap}
.wordmark span{display:block;font-weight:450;font-size:10px;letter-spacing:.08em;color:var(--muted);margin-top:5px}
.site-header nav{display:flex;gap:28px;font-size:13px;font-weight:600;white-space:nowrap}
.site-header nav a{color:var(--ink);text-decoration:none}
.site-header nav a:hover{color:var(--accent)}
.private-label{font-size:11px;color:var(--muted);white-space:nowrap}
.hero{display:grid;grid-template-columns:1.05fr 1fr;gap:30px;padding-top:76px;padding-bottom:70px;align-items:center}
.eyebrow,.section-kicker{font-size:11px;font-weight:750;letter-spacing:.13em;text-transform:uppercase;color:var(--accent);margin-bottom:22px}
h1{font-size:clamp(40px,4.7vw,66px);font-weight:650;letter-spacing:-.055em;line-height:1.02}
.hero-deck{font-size:18px;max-width:450px;color:var(--muted);line-height:1.5;margin-top:24px;margin-bottom:28px}
.button{background:var(--accent);color:white;display:inline-flex;gap:34px;align-items:center;text-decoration:none;border-radius:var(--radius);padding:12px 20px;font-size:14px;font-weight:600;white-space:nowrap;transition:background .2s}
.button:hover{background:#103ba1}
.hero-image{min-width:0;background:#eef1f6;border:1px solid var(--line);border-radius:var(--radius);padding:16px 16px 0;transform:rotate(1.5deg)}
.hero-image img{width:100%;height:310px;object-fit:cover;object-position:left top;border:1px solid var(--line);border-radius:4px;display:block}
.hero-image figcaption{font-size:10px;line-height:1.45;color:var(--muted);padding:13px 0 15px;max-width:430px}
.study-facts{display:grid;grid-template-columns:repeat(4,1fr);border-block:1px solid var(--line);padding-block:26px}
.study-facts>div{padding-inline:24px;border-left:1px solid var(--line);display:flex;gap:17px;align-items:center}
.study-facts>div:first-child{padding-left:0;border:0}
.study-facts strong{font-size:40px;font-weight:500;letter-spacing:-.06em;line-height:1}
.study-facts span{font-size:12px;line-height:1.4;color:var(--muted)}
.study-facts small{display:block;font-size:10px;margin-top:4px}
.opening{display:grid;grid-template-columns:1fr 1fr;gap:0 70px;padding-top:88px;padding-bottom:88px}
.opening .section-kicker{grid-column:1/-1}
.opening h2{font-size:clamp(32px,3.3vw,46px)}
.opening-body p{font-size:16px}
.opening-body .scope-note{font-size:12px;color:var(--muted);padding-top:8px}
.section{padding-top:80px;padding-bottom:80px;border-top:1px solid var(--line)}
.section-heading{max-width:800px;margin-bottom:36px}
.section-heading h2,.limitations h2{font-size:clamp(34px,4vw,52px);font-weight:600}
.section-heading>p:last-child{max-width:630px;color:var(--muted);margin-top:22px}
.finding-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:0 36px}
.lead-finding{grid-row:span 2;background:var(--soft);padding:36px;border-radius:var(--radius)}
.evidence-label{font-size:11px;line-height:1.5;color:var(--muted);display:block}
.lead-finding h3{font-size:32px;margin:20px 0;line-height:1.15}
.lead-finding>p{font-size:14px}
.quote-pair{margin:28px 0;display:grid;gap:22px}
.quote-pair blockquote{border-left:2px solid var(--accent);padding-left:16px}
.quote-pair blockquote p{font-family:Georgia,serif;font-size:23px;line-height:1.3;letter-spacing:-.02em}
.quote-pair footer{font-size:10px;color:var(--muted);margin-top:9px}
.judgment strong{display:block;margin-bottom:5px}
.text-button{background:none;border:0;padding:0;margin-top:23px;font-size:13px;color:var(--accent);font-weight:650;text-align:left}
.text-button:hover,.text-link:hover{text-decoration:underline}
.finding-side{padding:18px 0 30px}
.finding-side+.finding-side{border-top:1px solid var(--line);padding-top:30px;padding-bottom:10px}
.finding-side h3{font-size:25px;line-height:1.16;margin:14px 0}
.finding-side>p{font-size:14px}
.fine{font-size:12px!important;color:var(--muted);line-height:1.65;letter-spacing:0}
.finding-side .fine{margin-top:16px}
.more-themes{margin-top:32px;padding-block:18px;border-bottom:1px solid var(--line)}
summary{cursor:pointer;font-size:14px;font-weight:650;color:var(--accent)}
#themes{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:24px}
#themes article{padding:22px;background:white;border:1px solid var(--line);border-radius:var(--radius)}
#themes h3{font-size:21px;line-height:1.2;margin-bottom:12px}
#themes p{font-size:13px;margin-top:12px}
.research-note{display:grid;grid-template-columns:210px 1fr;gap:30px;padding:24px;background:white;border:1px solid var(--line);border-radius:var(--radius);margin-top:24px;font-size:13px}
.research-note strong{font-size:15px}
#recording-summary p+p{margin-top:8px}
.sessions-section{background:#f1f4f8}
.library-toolbar{display:flex;gap:16px;align-items:center;justify-content:space-between;margin-bottom:22px}
.library-toolbar label{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:13px}
.library-toolbar select{border:1px solid #a7b4c6;background:white;color:var(--ink);padding:9px 32px 9px 12px;border-radius:var(--radius);max-width:100%}
#session-count{font-size:12px;color:var(--muted)}
.session-layout{display:grid;grid-template-columns:230px minmax(0,1fr);gap:24px;align-items:start}
.participant-list{display:grid;gap:8px}
.participant-button{text-align:left;padding:13px 15px;background:transparent;border:1px solid transparent;border-radius:var(--radius);display:grid;grid-template-columns:38px 1fr;gap:9px;align-items:start}
.participant-button:hover{background:#e5ebf5}
.participant-button[aria-pressed=true]{background:white;border-color:var(--accent)}
.participant-button strong{font-size:13px;font-weight:650}
.participant-button span{font-size:13px;line-height:1.35}
.participant-button small{display:block;font-size:10px;color:var(--muted);margin-top:4px}
.session-detail{background:white;border:1px solid var(--line);border-radius:var(--radius);padding:26px;min-width:0}
.participant-head{display:flex;gap:15px;justify-content:space-between;align-items:center;margin-bottom:20px}
.participant-head h3{font-size:26px;letter-spacing:-.025em}
.participant-head p{font-size:12px;color:var(--muted);margin-top:5px}
.participant-head>.evidence-label{font-size:10px;text-align:right;max-width:190px}
.tab-list{display:flex;gap:24px;border-bottom:1px solid var(--line);margin-bottom:20px}
.tab-list button{border:0;border-bottom:2px solid transparent;background:none;padding:10px 0;font-size:13px;white-space:nowrap}
.tab-list button[aria-selected=true]{border-color:var(--accent);color:var(--accent);font-weight:650}
[hidden]{display:none!important}
video{display:block;width:100%;max-height:470px;background:#e9edf3;border-radius:4px}
.media-note{margin-top:13px}
.empty-state{background:var(--soft);border-radius:var(--radius);padding:34px 26px;font-size:14px}
.empty-state h4{font-size:18px;margin:0 0 10px}
.participant-quality{font-size:11px;line-height:1.6;color:var(--muted);padding-top:18px;margin-top:22px;border-top:1px solid var(--line)}
.transcript-disclosure{font-size:12px;color:var(--muted);padding:15px;background:#f2f5fa;border-radius:var(--radius);margin-bottom:20px}
.search-label{display:flex;align-items:center;gap:15px;font-size:12px;color:var(--muted)}
.search-label input{min-width:0;flex:1;border:1px solid #a7b4c6;border-radius:var(--radius);background:white;padding:8px 11px;color:var(--ink);font-size:13px}
.search-label input::placeholder{color:var(--muted)}
#transcript-count{margin:10px 0}
#transcript-segments{max-height:410px;overflow:auto;scrollbar-gutter:stable}
.transcript-segment{display:grid;grid-template-columns:62px minmax(0,1fr);gap:16px;padding:11px 5px;font-size:13px}
.transcript-segment+.transcript-segment{border-top:1px solid #edf0f4}
.time-button{align-self:start;border:0;background:var(--soft);padding:5px;border-radius:4px;color:var(--accent);font:11px/1.4 ui-monospace,monospace}
.time-button:hover{background:#dce7ff}
#written-answers h4,#observation-notes h4{font-size:13px;line-height:1.5;margin:22px 0 10px}
#written-answers blockquote{padding:18px 20px;border-left:2px solid var(--accent);background:#f5f7fb;font-size:14px;white-space:pre-wrap;overflow-wrap:anywhere}
#written-answers>p{margin-top:20px}
#observation-notes p{font-size:12px;margin-top:10px}
.method-detail{padding-top:23px;margin-top:28px;border-top:1px solid var(--line)}
.method-detail p{font-size:13px;max-width:900px;margin-top:15px;color:var(--muted)}
.method-contrast{display:grid;grid-template-columns:1fr 1fr;gap:40px;padding:30px 0;margin-bottom:28px}
.method-contrast article+article{border-left:1px solid var(--line);padding-left:40px}
.method-contrast h3{font-size:26px}
.method-contrast p{font-size:14px;margin-top:14px}
.method-contrast h3+p{font-size:11px;color:var(--muted)}
.text-link{font-size:13px;font-weight:650;display:inline-block;margin-top:22px}
.table-scroll{overflow-x:auto}
.comparison-table{border-collapse:collapse;width:100%;font-size:13px;min-width:720px}
.comparison-table caption{text-align:left;font-size:16px;font-weight:650;margin-bottom:20px}
.comparison-table thead{background:var(--soft)}
.comparison-table th,.comparison-table td{text-align:left;vertical-align:top;padding:19px 22px;border-bottom:1px solid var(--line);line-height:1.65;width:33.333%}
.comparison-table thead th{font-size:11px;color:var(--muted);font-weight:650}
.comparison-table tbody th{font-weight:600}
.state{display:block;font-size:10px;font-weight:700;color:var(--accent);margin-bottom:6px}
.decision-layout{display:grid;grid-template-columns:1.2fr 1fr;gap:70px}
.decision-steps{display:grid;gap:36px}
.decision-steps article{display:grid;grid-template-columns:38px 1fr;gap:16px}
.step-number{color:var(--accent);font-size:23px;line-height:1.2}
.decision-steps h3{font-size:24px;margin-bottom:13px}
.decision-steps p{font-size:14px}
.decision-steps .fine{margin-top:12px}
.measurement{border-left:2px solid var(--accent);padding:26px 30px;background:var(--soft);align-self:start;border-radius:0 var(--radius) var(--radius) 0}
.measurement h3{font-size:24px;margin-bottom:25px}
.measurement dl{margin:0}
.measurement dt{font-size:11px;color:var(--muted);margin-top:23px}
.measurement dd{margin:7px 0 0;font-size:14px}
.measurement>.fine{margin-top:26px}
.limitations{display:grid;grid-template-columns:1fr 1fr;gap:70px}
.limitations p{font-size:14px}
.limitations details{margin-top:22px}
#limitations-list{font-size:12px;color:var(--muted);padding-left:18px}
#limitations-list li{margin-top:10px}
.site-footer{display:flex;gap:30px;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding-block:36px 48px;font-size:11px;color:var(--muted)}
.site-footer strong{font-size:14px;color:var(--ink)}
.site-footer p{margin-top:6px}
.site-footer>a{white-space:nowrap}
mark{background:#fff0a3;color:var(--ink)}

@media(min-width:1600px){.hero-image img{height:340px}
}

@media(max-width:1000px){.wrap{padding-inline:30px}
.site-header{padding-inline:30px;gap:15px}
.site-header nav{gap:19px}
.private-label{display:none}
.hero{gap:24px;padding-top:55px}
h1{font-size:clamp(36px,4.6vw,49px)}
.hero-image img{height:280px}
.study-facts>div{padding-inline:16px;gap:12px}
.study-facts strong{font-size:32px}
.opening,.decision-layout,.limitations{gap:35px}
.session-layout{grid-template-columns:190px minmax(0,1fr)}
.participant-head>.evidence-label{max-width:135px}
.finding-grid{gap:25px}
.lead-finding{padding:26px}
.lead-finding h3{font-size:28px}
}

@media(max-width:720px){html{scroll-padding-top:24px}
.wrap{padding-inline:22px}
.site-header{height:auto;padding:18px 22px;flex-wrap:wrap;gap:18px}
.wordmark{font-size:15px}
.wordmark span{font-size:9px}
.site-header nav{width:100%;justify-content:space-between;gap:12px;font-size:12px}
.hero{grid-template-columns:1fr;padding-top:40px;padding-bottom:38px;gap:32px}
.eyebrow,.section-kicker{font-size:10px;margin-bottom:17px}
h1{font-size:clamp(38px,9.7vw,64px)}
.hero-deck{font-size:16px;max-width:330px;margin:20px 0 23px}
.hero-image{transform:none;padding:12px 12px 0}
.hero-image img{height:230px}
.hero-image figcaption{font-size:9px;padding-block:10px}
.study-facts{grid-template-columns:1fr 1fr;padding-block:0}
.study-facts>div{padding:22px 12px!important;gap:14px}
.study-facts>div:nth-child(odd){border-left:0}
.study-facts>div:nth-child(n+3){border-top:1px solid var(--line)}
.study-facts strong{font-size:33px}
.study-facts span{font-size:11px}
.study-facts small{font-size:9px}
.opening{grid-template-columns:1fr;padding-block:48px;gap:24px}
.opening .section-kicker{margin:0}
.opening h2{font-size:36px}
.opening-body p{font-size:14px}
.section{padding-block:48px}
.section-heading h2,.limitations h2{font-size:35px;line-height:1.1}
.section-heading{margin-bottom:28px}
.section-heading>p:last-child{font-size:14px;margin-top:20px}
.finding-grid{grid-template-columns:1fr;gap:25px}
.lead-finding{grid-row:auto;padding:24px}
.lead-finding h3{font-size:27px}
.finding-side{padding:0}
.finding-side+.finding-side{padding-top:24px}
.quote-pair blockquote p{font-size:22px}
.research-note{grid-template-columns:1fr;gap:13px;padding:20px}
#themes{grid-template-columns:1fr}
.library-toolbar{display:block}
.library-toolbar label{display:block}
.library-toolbar select{display:block;margin-top:8px;width:100%}
#session-count{display:block;margin-top:12px}
.session-layout{grid-template-columns:1fr;gap:16px}
.participant-list{display:flex;overflow-x:auto;gap:6px;padding-bottom:9px}
.participant-button{flex:0 0 153px;grid-template-columns:31px 1fr;padding:11px 10px;background:#e8edf5}
.participant-button span{font-size:12px}
.participant-button strong{font-size:12px}
.session-detail{padding:19px 16px}
.participant-head{align-items:start}
.participant-head h3{font-size:24px}
.participant-head>.evidence-label{font-size:9px;max-width:110px}
.tab-list{gap:21px}
.tab-list button{font-size:12px}
.search-label{display:block}
.search-label input{display:block;width:100%;margin-top:8px}
.transcript-segment{grid-template-columns:53px 1fr;gap:8px;font-size:12px}
.method-contrast{grid-template-columns:1fr;gap:30px;padding-top:0}
.method-contrast article+article{border-left:0;padding:25px 0 0;border-top:1px solid var(--line)}
.comparison-table{min-width:700px}
.comparison-table td,.comparison-table th{padding:15px}
.decision-layout{grid-template-columns:1fr;gap:35px}
.decision-steps article{grid-template-columns:27px 1fr;gap:10px}
.measurement{padding:23px}
.limitations{grid-template-columns:1fr;gap:28px}
.site-footer{display:block;padding-block:28px}
.site-footer>p,.site-footer>a{display:block;margin-top:20px}
}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}
*{transition:none!important}
}

@media print{.site-header nav,.button,.participant-list,.tab-list,.library-toolbar,video{display:none}
.hero{padding-top:20px}
.section,.opening{padding-block:30px;break-inside:avoid}
.hero-image{transform:none}
.wrap{padding-inline:0}
.session-layout{display:block}
.transcript-segments{max-height:none}
body{background:white}
.site-footer{break-inside:avoid}
}

.diagnosis-flow{list-style:none;counter-reset:diagnostic;padding:0;margin:0 0 38px;display:grid;gap:22px;max-width:920px}.diagnosis-flow li{counter-increment:diagnostic;display:grid;grid-template-columns:35px 1fr;column-gap:14px}.diagnosis-flow li:before{content:counter(diagnostic);grid-row:span 2;color:var(--accent);font-size:23px;line-height:1.2}.diagnosis-flow strong{font-size:19px;letter-spacing:-.02em}.diagnosis-flow p{font-size:14px;margin-top:5px;color:var(--muted)}.diagnosis-conclusion{max-width:860px;font-size:14px;margin-top:28px}