/* ==========================================================================
   sultan-2026.css — the single stylesheet for ryansultan.com (2026-09 redesign)
   Replaces style-1993.css + css/redesign-2026.css + css/notebook-2026.css.
   Scope: everything under body.rd (294/297 pages carry it).
   Fonts: Newsreader (display) · Libre Franklin (text) · IBM Plex Mono (data)
   New filename on purpose: _headers marks /*.css immutable for a year.
   ========================================================================== */

/* ---------- tokens ---------- */
body.rd{
  --ink:#14181D; --ink-2:#3D4650; --ink-3:#6B7681;
  --ground:#F5F6F8; --paper:#FFFFFF; --paper-2:#EEF1F4;
  --line:#D9DEE4; --hair:#E9ECF0;
  --navy:#0F2B45; --navy-2:#173D5F; --navy-ink:#EDF2F7; --navy-soft:#9FB6CA;
  --blue:#2C6FA8; --blue-tint:#E7F0F8; --columbia:#8FC3E8;
  --warn:#8A4B2A; --warn-tint:#F7EEE8;
  --good:#2E6B4F; --good-tint:#E8F2EC;
  --focus:#2C6FA8;
  --measure:800px; --wide:1120px;
  --serif:Newsreader,Georgia,"Times New Roman",serif;
  --sans:"Libre Franklin","Helvetica Neue",Arial,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
}
@media (prefers-color-scheme:dark){
  body.rd{
    --ink:#E7EBF0; --ink-2:#AEB9C5; --ink-3:#7E8A97;
    --ground:#0D1117; --paper:#141A21; --paper-2:#1A2129;
    --line:#29313B; --hair:#1F262E;
    --navy:#0A1C2C; --navy-2:#12283D; --navy-ink:#E7EFF6; --navy-soft:#8FA6BA;
    --blue:#7FB6E4; --blue-tint:#15263A; --columbia:#8FC3E8;
    --warn:#D9946B; --warn-tint:#2A1F18;
    --good:#7FC1A0; --good-tint:#15261D;
    --focus:#7FB6E4;
  }
}

/* ---------- base / legacy neutralisation ---------- */
body.rd{
  margin:0; padding:0 0 84px;
  background:var(--ground); color:var(--ink);
  font-family:var(--sans); font-size:16.5px; line-height:1.62;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
  max-width:none; width:auto;
}
body.rd *,body.rd *::before,body.rd *::after{box-sizing:border-box;}
body.rd center{text-align:inherit; display:block;}
body.rd font{color:inherit; font:inherit;}
body.rd marquee,body.rd blink,body.rd .webring,body.rd .counter,body.rd .under-construction,
body.rd .best-viewed,body.rd .rainbow-hr,body.rd .apple-divider{display:none!important;}
body.rd img{max-width:100%; height:auto;}
body.rd hr{border:0; border-top:1px solid var(--line); margin:34px 0;}
body.rd a{color:var(--blue); text-decoration:none;}
body.rd a:hover{text-decoration:underline; text-underline-offset:3px;}
body.rd a:visited{color:var(--blue);}
body.rd :focus-visible{outline:2px solid var(--focus); outline-offset:3px; border-radius:2px;}
body.rd .skip-link{position:absolute; left:-9999px; top:0; background:var(--navy); color:var(--navy-ink); padding:8px 12px; z-index:200;}
body.rd .skip-link:focus{left:12px; top:12px;}
body.rd ::selection{background:var(--columbia); color:#0B2137;}

/* ---------- typography ---------- */
body.rd h1,body.rd h2,body.rd h3,body.rd h4{
  font-family:var(--serif); font-weight:500; color:var(--ink); text-wrap:balance;
  line-height:1.15; letter-spacing:-.014em; margin:0;
}
body.rd h1{font-size:clamp(30px,4.2vw,44px); line-height:1.08; letter-spacing:-.022em; margin:8px 0 18px;}
body.rd h2{font-size:clamp(23px,2.8vw,30px); margin:48px 0 14px; padding-top:14px; border-top:1px solid var(--line);}
body.rd h3{font-size:20px; margin:30px 0 10px; letter-spacing:-.01em;}
body.rd h4{font-size:17px; margin:22px 0 8px; font-family:var(--sans); font-weight:600; letter-spacing:0;}
body.rd h5,body.rd h6{font-family:var(--mono); font-size:11px; letter-spacing:.13em; text-transform:uppercase; color:var(--ink-3); margin:22px 0 8px;}
body.rd p{margin:0 0 1.1em;}
body.rd main p,body.rd main li,body.rd article p,body.rd article li{font-size:16.5px!important; line-height:1.62!important;}
body.rd ul,body.rd ol{padding-left:1.4em; margin:0 0 1.2em;}
body.rd li{margin:0 0 .45em;}
body.rd li::marker{color:var(--ink-3);}
body.rd strong,body.rd b{font-weight:600;}
body.rd small{font-size:13.5px; color:var(--ink-2);}
body.rd sup{font-size:.72em; line-height:0;}
body.rd blockquote,body.rd .quote-box{
  margin:24px 0; padding:4px 0 4px 22px; border-left:2px solid var(--columbia);
  font-family:var(--serif); font-size:1.08em; color:var(--ink-2);
}
body.rd code,body.rd kbd,body.rd .mono,body.rd time,body.rd .nb-creds,body.rd .rd-kicker,body.rd .eyebrow{font-family:var(--mono);}
body.rd time{font-size:.86em; color:var(--ink-3);}
body.rd .eyebrow,body.rd .rd-kicker{font-size:11px; letter-spacing:.14em; text-transform:uppercase; color:var(--ink-3); font-weight:500;}
body.rd .nb-creds{font-size:12.5px; color:var(--ink-3); line-height:1.55;}
body.rd pre{overflow-x:auto; background:var(--paper-2); padding:14px 16px; font-size:13.5px;}
body.rd dl{margin:0 0 1.2em;}
body.rd dt{font-weight:600; margin-top:12px;}
body.rd dd{margin:4px 0 0 0; color:var(--ink-2);}

/* ---------- layout ---------- */
body.rd main,body.rd article,body.rd .container{display:block; width:auto;}
body.rd > main,body.rd > article,body.rd > .container,
body.rd > div > main,body.rd > div > article{
  max-width:var(--measure); margin:0 auto; padding:34px 22px 56px;
  background:transparent; border:0; box-shadow:none;
}
body.rd article main,body.rd main article{max-width:none; margin:0; padding:0;}
@media(min-width:900px){
  body.rd > main,body.rd > article,body.rd > div > main,body.rd > div > article{padding:52px 28px 72px;}
}
/* legacy rd-legacy pages: content used to live in <header>; after pass 1 it lives in main */
body.rd img.header-img{width:88px; height:88px; border-radius:50%; object-fit:cover; object-position:50% 20%; margin:0 0 18px; display:block;}

/* ---------- site header (canonical, from redesign/chrome.html) ---------- */
body.rd header.site{
  position:sticky; top:0; z-index:60;
  background:color-mix(in srgb,var(--ground) 92%,transparent);
  backdrop-filter:saturate(180%) blur(12px); -webkit-backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--hair); margin:0; padding:0;
}
body.rd header.site .site-in{max-width:var(--wide); margin:0 auto; padding:0 22px; display:flex; align-items:center; gap:28px; height:62px; position:relative;}
body.rd header.site .brand{font-family:var(--serif); font-size:19px; color:var(--ink); letter-spacing:-.01em; white-space:nowrap;}
body.rd header.site .brand:hover{text-decoration:none;}
body.rd header.site .brand .deg{font-size:13px; color:var(--ink-3); letter-spacing:.04em;}
body.rd header.site .site-nav{display:flex; gap:24px; margin-left:auto; align-items:center;}
body.rd header.site .site-nav a{font-size:14px; color:var(--ink-2); font-weight:500; letter-spacing:.01em; padding:8px 0;}
body.rd header.site .site-nav a:hover{color:var(--ink); text-decoration:none;}
body.rd header.site .site-cta{border:1px solid var(--ink); color:var(--ink)!important; padding:8px 16px!important; font-size:13.5px!important; letter-spacing:.02em;}
body.rd header.site .site-cta:hover{background:var(--ink); color:var(--ground)!important;}
body.rd header.site .site-nav-t{display:none;}
body.rd header.site .site-nav-b{display:none; margin-left:auto; width:44px; height:44px; cursor:pointer; flex-direction:column; justify-content:center; gap:5px; align-items:center;}
body.rd header.site .site-nav-b span{display:block; width:22px; height:1.5px; background:var(--ink); transition:transform .2s,opacity .2s;}
@media(max-width:860px){
  body.rd header.site .site-nav-b{display:flex;}
  body.rd header.site .site-nav{
    display:none; position:absolute; left:0; right:0; top:62px; flex-direction:column; gap:0;
    background:var(--paper); border-bottom:1px solid var(--line); padding:8px 22px 16px; margin:0;
  }
  body.rd header.site .site-nav a{padding:13px 0; border-bottom:1px solid var(--hair); font-size:16px; min-height:44px;}
  body.rd header.site .site-nav a:last-child{border-bottom:0;}
  body.rd header.site .site-cta{margin-top:10px; text-align:center; border-bottom:1px solid var(--ink)!important;}
  body.rd header.site .site-nav-t:checked ~ .site-nav{display:flex;}
  body.rd header.site .site-nav-t:checked ~ .site-nav-b span:nth-child(1){transform:translateY(6.5px) rotate(45deg);}
  body.rd header.site .site-nav-t:checked ~ .site-nav-b span:nth-child(2){opacity:0;}
  body.rd header.site .site-nav-t:checked ~ .site-nav-b span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg);}
}

/* ---------- breadcrumbs ---------- */
body.rd .crumbs,body.rd nav[aria-label="Breadcrumb"]{
  font-family:var(--mono); font-size:11.5px; letter-spacing:.02em; color:var(--ink-3);
  margin:0 0 22px; padding:0; line-height:1.7;
}
body.rd .crumbs a,body.rd nav[aria-label="Breadcrumb"] a{color:var(--ink-2);}
body.rd .crumbs b,body.rd .crumbs strong,body.rd .crumbs span{color:var(--ink-3); font-weight:400;}

/* ---------- answer capsule / callouts ---------- */
body.rd table.capsule,body.rd .answer-capsule,body.rd .quick-answer{
  display:block; width:100%; margin:0 0 30px; border:1px solid var(--line); border-left:3px solid var(--columbia);
  background:var(--paper); padding:18px 22px 14px;
}
body.rd table.capsule tbody,body.rd table.capsule tr,body.rd table.capsule td{display:block; border:0; padding:0; background:transparent;}
body.rd table.capsule td>*:first-child{margin-top:0;}
body.rd table.capsule td>*:last-child{margin-bottom:0;}
body.rd table.capsule h2,body.rd table.capsule h3,body.rd .answer-capsule h2,body.rd .answer-capsule h3,body.rd .quick-answer h3{
  border:0; padding:0; margin:0 0 8px; font-family:var(--mono); font-size:11px; letter-spacing:.14em; text-transform:uppercase; color:var(--blue); font-weight:500;
}
body.rd table.capsule p,body.rd .answer-capsule p{font-size:16px!important; color:var(--ink-2);}
body.rd .callout,body.rd table.callout{
  display:block; width:100%; margin:22px 0; border:1px solid var(--line); background:var(--paper-2); padding:16px 20px;
}
body.rd table.callout tbody,body.rd table.callout tr,body.rd table.callout td{display:block; border:0; padding:0; background:transparent;}
body.rd .callout td>*:first-child{margin-top:0;} body.rd .callout td>*:last-child{margin-bottom:0;}
body.rd .callout-key{border-left:3px solid var(--blue); background:var(--blue-tint);}
body.rd .callout-warn{border-left:3px solid var(--warn); background:var(--warn-tint);}
body.rd .callout-good{border-left:3px solid var(--good); background:var(--good-tint);}
body.rd .callout h2,body.rd .callout h3,body.rd .callout h4{margin:0 0 8px; border:0; padding:0; font-size:17px;}

/* ---------- tables (content) ---------- */
body.rd .tbl{overflow-x:auto; -webkit-overflow-scrolling:touch; margin:22px 0; border:1px solid var(--line); background:var(--paper);}
body.rd .tbl>table{margin:0; border:0; min-width:100%;}
body.rd table{border-collapse:collapse; width:100%; margin:22px 0; font-size:15px; background:var(--paper); border:1px solid var(--line);}
body.rd th,body.rd td{padding:10px 13px; border:1px solid var(--line); vertical-align:top; text-align:left; font-variant-numeric:tabular-nums;}
body.rd th,body.rd .th-row td,body.rd thead td{
  background:var(--navy); color:var(--navy-ink); font-family:var(--sans); font-weight:600; font-size:13px; letter-spacing:.02em;
}
body.rd .th-row td font,body.rd th font,body.rd th b{color:inherit;}
body.rd tbody tr:nth-child(even) td{background:var(--paper-2);}
body.rd .th-row:nth-child(even) td{background:var(--navy);}
body.rd table p{margin:0 0 .5em;} body.rd table p:last-child{margin:0;}
body.rd table ul,body.rd table ol{margin:0; padding-left:1.1em;}
body.rd .comparison-table,body.rd .diagnostic-table,body.rd .stats-table,body.rd .cost-table,body.rd .format-table{width:100%;}
body.rd .total-row td{font-weight:600; background:var(--blue-tint)!important;}
body.rd td.pros,body.rd .pros td{border-left:3px solid var(--good);}
body.rd td.cons,body.rd .cons td{border-left:3px solid var(--warn);}

/* ---------- media embeds ---------- */
body.rd .embed,body.rd .video-container,body.rd .video-embed{position:relative; width:100%; padding-bottom:56.25%; height:0; overflow:hidden; margin:22px 0; background:#000;}
body.rd .embed>iframe,body.rd .embed>video,body.rd .video-container>iframe,body.rd .video-embed>iframe{position:absolute; inset:0; width:100%; height:100%; border:0;}
body.rd video{max-width:100%; height:auto; display:block; background:#000;}
body.rd .video-header,body.rd .video-meta{font-size:13.5px; color:var(--ink-3);}
body.rd figure{margin:26px 0;} body.rd figcaption{font-size:13.5px; color:var(--ink-3); margin-top:8px; font-family:var(--mono);}

/* ---------- buttons ---------- */
body.rd .cta-button,body.rd .booking-button,body.rd .contact-button,body.rd .cta-btn,body.rd .download-btn,
body.rd .pdf-btn,body.rd .btn-apple,body.rd .btn-primary-gold,body.rd .btn-secondary-white,body.rd .btn,body.rd .booking-cta a,
body.rd .faq-footer-cta a,body.rd .cta-box a.button,body.rd a.button{
  display:inline-block; padding:12px 22px; margin:6px 8px 6px 0; font-family:var(--sans); font-size:14.5px; font-weight:600;
  letter-spacing:.01em; background:var(--ink); color:var(--ground)!important; border:1px solid var(--ink); text-decoration:none!important;
  min-height:44px; line-height:1.3;
}
body.rd .cta-button:hover,body.rd .booking-button:hover,body.rd .btn:hover{background:var(--navy);}
body.rd .btn-secondary-white,body.rd .download-btn,body.rd .pdf-btn{background:transparent; color:var(--ink)!important;}
body.rd .btn-secondary-white:hover,body.rd .download-btn:hover,body.rd .pdf-btn:hover{background:var(--paper-2);}
body.rd .cta-box,body.rd .cta-banner,body.rd .booking-cta,body.rd .faq-footer-cta,body.rd .when-to-seek-help{
  margin:34px 0; padding:26px 28px; background:var(--navy); color:var(--navy-ink); border:0;
}
body.rd .cta-box *,body.rd .cta-banner *,body.rd .booking-cta *,body.rd .faq-footer-cta *{color:var(--navy-ink);}
body.rd .cta-box h2,body.rd .cta-box h3,body.rd .cta-banner h2,body.rd .cta-banner h3{border:0; padding:0; margin:0 0 10px;}
body.rd .cta-box a:not(.cta-button),body.rd .cta-banner a:not(.cta-button){color:var(--columbia);}
body.rd .cta-box .cta-button,body.rd .cta-banner .cta-button,body.rd .booking-cta .cta-button,body.rd .booking-cta .booking-button{background:var(--columbia); color:#0B2137!important; border-color:var(--columbia);}

/* ---------- generic boxes / cards / grids (covers the 200-class long tail) ---------- */
body.rd [class$="-box"],body.rd .intro-box,body.rd .content-box,body.rd .highlight-box,body.rd .info-box,body.rd .evidence-box,
body.rd .research-box,body.rd .key-takeaway,body.rd .key-finding,body.rd .key-point,body.rd .clinical-pearl,body.rd .protective-box,
body.rd .further-reading,body.rd .see-also,body.rd .references,body.rd .product-box,body.rd .formulation-box,body.rd .differential-box,
body.rd .algorithm-box,body.rd .therapy-box,body.rd .guideline-box,body.rd .week-box,body.rd .myth-box,body.rd .reality-check,
body.rd .strategy-box,body.rd .debunk-box,body.rd .benefit-box,body.rd .school-box,body.rd .parent-guide-box,body.rd .sleep-tip-box,
body.rd .grief-box,body.rd .relief-box,body.rd .publications-box,body.rd .services-box,body.rd .neighborhood-box,body.rd .credential-box,
body.rd .impact-box,body.rd .collaboration-box,body.rd .college-prep-box,body.rd .resource-box,body.rd .solution-box,body.rd .side-effect-box,
body.rd .testimonial-box,body.rd .result-box{
  margin:24px 0; padding:18px 22px; border:1px solid var(--line); background:var(--paper);
}
body.rd .key-takeaway,body.rd .key-finding,body.rd .key-point,body.rd .clinical-pearl,body.rd .intro-box,body.rd .highlight-box,body.rd .evidence-box,body.rd .protective-box{border-left:3px solid var(--blue); background:var(--blue-tint);}
body.rd .warning-box,body.rd .danger-box,body.rd .danger-zone,body.rd .side-effect-box{border-left:3px solid var(--warn); background:var(--warn-tint);}
body.rd .pros-box,body.rd .benefit-box,body.rd .solution-box,body.rd .relief-box,body.rd .strong-evidence{border-left:3px solid var(--good); background:var(--good-tint);}
body.rd .cons-box,body.rd .weak-evidence{border-left:3px solid var(--warn);}
body.rd .moderate-evidence{border-left:3px solid var(--columbia);}
body.rd [class$="-box"] h2,body.rd [class$="-box"] h3,body.rd [class$="-box"] h4,body.rd .key-takeaway h3,body.rd .clinical-pearl h3,body.rd .references h2,body.rd .references h3{margin:0 0 10px; padding:0; border:0; font-size:17px;}
body.rd [class$="-box"]>p:last-child,body.rd [class$="-box"]>ul:last-child{margin-bottom:0;}
body.rd .references,body.rd .further-reading,body.rd .see-also,body.rd .source-note,body.rd .citation,body.rd .source{font-size:14px; color:var(--ink-2);}
body.rd .references ol,body.rd .references ul{padding-left:1.3em;} body.rd .references li{margin-bottom:.5em; word-break:break-word;}
body.rd .references a,body.rd .citation a{word-break:break-all;}

body.rd [class*="-grid"],body.rd .pros-cons,body.rd .stat-row,body.rd .press-photos,body.rd .credentials-grid{
  display:grid; grid-template-columns:repeat(auto-fit,minmax(230px,1fr)); gap:16px; margin:22px 0;
}
body.rd [class*="-grid"]>*,body.rd .pros-cons>*{margin:0;}
body.rd [class*="-card"],body.rd .hub-card,body.rd .research-card,body.rd .credential-card,body.rd .topic-card,body.rd .stat-card,
body.rd .symptom-card,body.rd .challenge-card,body.rd .expertise-card,body.rd .affiliation-card,body.rd .question-card,body.rd .press-photo-card,
body.rd .treatment-option,body.rd .parent-strategy,body.rd .teen-strategy,body.rd .service-item,body.rd .conference-item,body.rd .resource-link{
  padding:18px 20px; border:1px solid var(--line); background:var(--paper); margin:0 0 16px;
}
body.rd [class*="-card"] h3,body.rd [class*="-card"] h4{margin:0 0 8px; padding:0; border:0; font-size:17px;}
body.rd [class*="-card"] p:last-child{margin-bottom:0;}
body.rd .stat-box,body.rd .stat-card,body.rd .stat-item{text-align:left;}
body.rd .stat-number,body.rd .stat-num{display:block; font-family:var(--mono); font-size:30px; font-weight:600; letter-spacing:-.02em; line-height:1.1; color:var(--ink); font-variant-numeric:tabular-nums;}
body.rd .stat-label{display:block; font-family:var(--mono); font-size:10.5px; letter-spacing:.11em; text-transform:uppercase; color:var(--ink-3); margin-top:6px;}
body.rd .research-stats{display:grid; grid-template-columns:repeat(auto-fit,minmax(160px,1fr)); gap:14px; margin:22px 0;}
body.rd .timeline{border-left:1px solid var(--line); padding-left:22px; margin:22px 0;}
body.rd .timeline>*{position:relative; margin-bottom:18px;}
body.rd .timeline>*::before{content:""; position:absolute; left:-27px; top:.55em; width:9px; height:9px; border-radius:50%; background:var(--columbia);}
body.rd .duration-visual,body.rd .duration-bar,body.rd .viz,body.rd .diagram,body.rd .chart-container{margin:18px 0;}

/* badges */
body.rd .author-badge,body.rd .nih-badge,body.rd .expert-badge,body.rd .age-badge,body.rd .age-badge-teen,body.rd .location-badge,body.rd .faq-badge,
body.rd .resource-type,body.rd .status,body.rd .oa,body.rd .impact,body.rd .journal,body.rd .citations,body.rd .option-label{
  display:inline-block; font-family:var(--mono); font-size:10.5px; letter-spacing:.1em; text-transform:uppercase; color:var(--ink-2);
  border:1px solid var(--line); padding:3px 8px; margin:0 6px 6px 0; background:var(--paper);
}
body.rd .author-bio,body.rd .credentials-banner,body.rd .credential-grid{margin:22px 0; padding:16px 20px; border:1px solid var(--line); background:var(--paper-2); font-size:14.5px; color:var(--ink-2);}
body.rd .author-bio h3,body.rd .author-bio h4{margin:0 0 6px; border:0; padding:0; font-size:15px;}

/* section / topic navs (in-page link lists) */
body.rd .section-nav,body.rd .nav-box,body.rd .faq-toc,body.rd .toc,body.rd .toc-grid,body.rd .alphabet-nav,body.rd .faq-links-grid,
body.rd .nav-columns,body.rd .content-hub,body.rd .key-topics,body.rd .links,body.rd .footer-nav,body.rd .faq-links-section,body.rd .topic-links{
  margin:24px 0; padding:18px 22px; border:1px solid var(--line); background:var(--paper); font-size:15px;
}
body.rd .section-nav h2,body.rd .section-nav h3,body.rd .nav-box h3,body.rd .faq-toc h2,body.rd .toc h2,body.rd .faq-toc h3,body.rd .toc h3{
  margin:0 0 10px; padding:0; border:0; font-family:var(--mono); font-size:11px; letter-spacing:.13em; text-transform:uppercase; color:var(--ink-3);
}
body.rd .section-nav ul,body.rd .nav-box ul,body.rd .faq-toc ul,body.rd .toc ul,body.rd .footer-nav ul{list-style:none; padding:0; margin:0; columns:2; column-gap:28px;}
body.rd .section-nav li,body.rd .nav-box li,body.rd .faq-toc li,body.rd .toc li{break-inside:avoid; margin:0 0 6px;}
body.rd .section-nav a,body.rd .nav-box a,body.rd .toc a{color:var(--ink);}
body.rd .section-nav a:hover,body.rd .nav-box a:hover,body.rd .toc a:hover{color:var(--blue);}
body.rd .alphabet-nav a{display:inline-block; min-width:32px; text-align:center; padding:6px 4px; font-family:var(--mono);}
body.rd table.footer-nav,body.rd .footer-nav table{border:0;} body.rd .footer-nav td{border:0; padding:6px 12px 6px 0; vertical-align:top;}
body.rd .nav-category,body.rd .category-header,body.rd .faq-category-header,body.rd .guideline-header,body.rd .resource-header,body.rd .medication-header,body.rd .teen-header{
  font-family:var(--mono); font-size:11px; letter-spacing:.13em; text-transform:uppercase; color:var(--ink-3); margin:26px 0 10px;
}
body.rd .back-home{margin:34px 0 0; font-size:14.5px;}
@media(max-width:640px){ body.rd .section-nav ul,body.rd .nav-box ul,body.rd .faq-toc ul,body.rd .toc ul{columns:1;} }

/* ---------- FAQ ---------- */
body.rd .faq-item,body.rd .faq-box,body.rd .question{border-top:1px solid var(--line); padding:18px 0 6px; margin:0;}
body.rd .faq-item:last-of-type{border-bottom:1px solid var(--line);}
body.rd .faq-item h3,body.rd .faq-question,body.rd .faq-toggle,body.rd .question-text{
  margin:0 0 8px; padding:0; border:0; font-family:var(--serif); font-size:19px; font-weight:500; cursor:default; color:var(--ink);
}
body.rd .faq-answer,body.rd .answer{color:var(--ink-2);}
body.rd .faq-answer[style*="display:none"],body.rd .faq-answer[style*="display: none"]{display:none;}
body.rd .faq-hero{margin:0 0 26px;}
body.rd .faq-stat{font-family:var(--mono); font-size:13px; color:var(--ink-3);}
body.rd .faq-disclaimer{font-size:13.5px; color:var(--ink-3); margin-top:26px;}
body.rd details{border-top:1px solid var(--line); padding:0;}
body.rd details:last-of-type{border-bottom:1px solid var(--line);}
body.rd summary{cursor:pointer; padding:16px 0; font-family:var(--serif); font-size:18px; list-style:none; display:flex; justify-content:space-between; gap:20px;}
body.rd summary::-webkit-details-marker{display:none;}
body.rd summary::after{content:"+"; font-family:var(--mono); color:var(--ink-3);}
body.rd details[open] summary::after{content:"–";}
body.rd details>*:not(summary){padding-bottom:16px;}

/* ---------- literature cards ---------- */
body.rd .lit-card{border:1px solid var(--line); background:var(--paper); padding:18px 20px; margin:0 0 14px;}
body.rd .lit-card.sultan-highlight{border-left:3px solid var(--columbia);}
body.rd .lit-card h3,body.rd .lit-card h4{margin:0 0 6px; padding:0; border:0; font-size:17px;}
body.rd .lit-card p{margin:0 0 .5em; font-size:15px!important; color:var(--ink-2);}
body.rd .lit-card .journal{color:var(--blue); border-color:var(--blue-tint); background:var(--blue-tint);}
body.rd .lit-card .oa{color:var(--good); border-color:var(--good-tint); background:var(--good-tint);}
body.rd .toc-item{padding:8px 0; border-bottom:1px solid var(--hair);}
body.rd .term{font-weight:600;} body.rd .definition{color:var(--ink-2); margin-bottom:12px;}

/* ---------- related content (js/related-content.js renders into #related-content) ---------- */
body.rd #related-content,body.rd .related-content,body.rd .related-resources{
  margin:44px 0 0; padding:22px 24px; border:1px solid var(--line); background:var(--paper);
}
body.rd #related-content h2,body.rd #related-content h3,body.rd .related-content h3{margin:0 0 12px; padding:0; border:0; font-family:var(--mono); font-size:11px; letter-spacing:.13em; text-transform:uppercase; color:var(--ink-3);}
body.rd #related-content ul{list-style:none; padding:0; margin:0; display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:8px 24px;}
body.rd #related-content a{color:var(--ink);} body.rd #related-content a:hover{color:var(--blue);}

/* ---------- footer (canonical) ---------- */
body.rd footer.site{background:var(--paper); border-top:1px solid var(--line); padding:56px 0 34px; margin:56px 0 0; color:var(--ink-2); font-size:14.5px;}
body.rd footer.site .site-in{max-width:var(--wide); margin:0 auto; padding:0 22px;}
body.rd footer.site .foot-grid{display:grid; grid-template-columns:1.5fr repeat(5,1fr); gap:32px;}
body.rd footer.site h4{font-family:var(--mono); font-size:10.5px; letter-spacing:.13em; text-transform:uppercase; color:var(--ink-3); font-weight:500; margin:0 0 12px;}
body.rd footer.site ul{list-style:none; padding:0; margin:0; display:grid; gap:7px;}
body.rd footer.site li{margin:0; font-size:14px;}
body.rd footer.site a{color:var(--ink-2);} body.rd footer.site a:hover{color:var(--ink);}
body.rd footer.site .foot-bio p{font-size:14px; line-height:1.6; max-width:40ch; margin:0 0 10px;}
body.rd footer.site .foot-ids{font-family:var(--mono); font-size:11.5px; color:var(--ink-3); line-height:1.8;}
body.rd footer.site .foot-base{margin-top:40px; padding-top:20px; border-top:1px solid var(--hair); font-size:13px; color:var(--ink-3); display:grid; gap:6px;}
body.rd footer.site .foot-base p{margin:0; font-size:13px!important;}
body.rd footer.site .footer-nap{color:var(--ink-2);} body.rd footer.site .footer-nap strong{color:var(--ink);}
body.rd footer.site .pub{font-family:var(--mono); font-size:11.5px;}
body.rd footer.site .foot-archive{font-size:12px;}
@media(max-width:1000px){ body.rd footer.site .foot-grid{grid-template-columns:repeat(3,1fr);} body.rd footer.site .foot-bio{grid-column:1/-1;} }
@media(max-width:600px){ body.rd footer.site .foot-grid{grid-template-columns:1fr 1fr; gap:24px;} }

/* ---------- dock (293 pages, markup unchanged) ---------- */
body.rd .rd-dock{
  position:fixed; left:0; right:0; bottom:0; z-index:70;
  display:flex; align-items:center; justify-content:center; gap:14px;
  background:var(--navy); color:var(--navy-ink); padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  border-top:1px solid var(--navy-2); font-size:14px;
}
body.rd .rd-dock .say{color:var(--navy-soft);} body.rd .rd-dock .say b{color:var(--navy-ink);}
body.rd .rd-dock a{color:var(--navy-ink); font-weight:600; padding:8px 14px; border:1px solid var(--navy-soft); min-height:40px; display:inline-flex; align-items:center;}
body.rd .rd-dock a:hover{text-decoration:none; background:rgba(255,255,255,.06);}
body.rd .rd-dock a:last-child{background:var(--columbia); color:#0B2137; border-color:var(--columbia);}
@media(max-width:640px){ body.rd .rd-dock .say{display:none;} body.rd .rd-dock a{flex:1; justify-content:center;} }

/* ---------- homepage (body.rd-home) ---------- */
body.rd.rd-home{padding-bottom:84px;}
/* .topic-links is a tracking hook on the homepage lists, not the boxed in-page nav of content pages */
body.rd.rd-home ul.topic-links{border:0; background:none; padding:0; font-size:inherit;}
body.rd.rd-home .hero .eyebrow{letter-spacing:.12em;}
body.rd.rd-home > main{max-width:none; padding:0;}
body.rd.rd-home .wrap{max-width:var(--wide); margin:0 auto; padding:0 28px;}
body.rd.rd-home .hero{background:var(--navy); color:var(--navy-ink); border-bottom:1px solid var(--navy-2);}
body.rd.rd-home .hero-in{display:grid; grid-template-columns:1.35fr .8fr; gap:56px; align-items:end; padding:76px 0 0;}
body.rd.rd-home .hero .eyebrow{color:var(--columbia);}
body.rd.rd-home .hero h1{font-size:clamp(38px,5.2vw,62px); line-height:1.04; letter-spacing:-.022em; margin:20px 0 0; color:var(--navy-ink); font-weight:400;}
body.rd.rd-home .hero h1 em{font-style:italic; color:var(--columbia);}
body.rd.rd-home .hero-sub{margin-top:22px; max-width:52ch; font-size:17px; line-height:1.65; color:var(--navy-soft);}
body.rd.rd-home .hero-sub strong{color:var(--navy-ink); font-weight:600;}
body.rd.rd-home .hero-cta{display:flex; flex-wrap:wrap; gap:14px; margin-top:30px;}
body.rd.rd-home .btn{display:inline-block; padding:13px 24px; font-size:14.5px; font-weight:600; letter-spacing:.01em; border:1px solid transparent; margin:0; min-height:44px;}
body.rd.rd-home .btn-solid{background:var(--columbia); color:#0B2137!important; border-color:var(--columbia);}
body.rd.rd-home .btn-solid:hover{background:#A9D3F0;}
body.rd.rd-home .btn-ghost{background:transparent; border-color:var(--navy-soft); color:var(--navy-ink)!important;}
body.rd.rd-home .btn-ghost:hover{border-color:var(--navy-ink); background:rgba(255,255,255,.06);}
body.rd.rd-home .hero-portrait img{width:100%; height:auto; max-height:430px; object-fit:cover; object-position:50% 18%; filter:grayscale(.28) contrast(1.04); display:block;}
body.rd.rd-home .rail{border-top:1px solid var(--navy-2); margin-top:56px;}
body.rd.rd-home .rail-in{display:grid; grid-template-columns:repeat(4,1fr); font-family:var(--mono);}
body.rd.rd-home .rail-item{padding:18px 22px 20px; border-left:1px solid var(--navy-2);}
body.rd.rd-home .rail-item:first-child{border-left:none; padding-left:0;}
body.rd.rd-home .rail-k{font-size:10.5px; letter-spacing:.12em; text-transform:uppercase; color:var(--columbia);}
body.rd.rd-home .rail-v{font-size:13px; line-height:1.45; color:var(--navy-soft); margin-top:6px;}
body.rd.rd-home .press{border-bottom:1px solid var(--hair); background:var(--paper);}
body.rd.rd-home .press-in{display:flex; align-items:center; gap:26px; flex-wrap:wrap; padding:16px 28px; font-size:12.5px;}
body.rd.rd-home .press-lbl{font-family:var(--mono); font-size:10.5px; letter-spacing:.14em; text-transform:uppercase; color:var(--ink-3);}
body.rd.rd-home .press a{color:var(--ink-2); font-weight:600;}
body.rd.rd-home .sec{padding:74px 0; border-bottom:1px solid var(--hair);}
body.rd.rd-home .sec-head{margin-bottom:36px; max-width:62ch;}
body.rd.rd-home .sec-head h2{font-size:clamp(26px,3.2vw,36px); line-height:1.14; letter-spacing:-.016em; margin:12px 0 0; padding:0; border:0;}
body.rd.rd-home .sec-head p{margin:14px 0 0; color:var(--ink-2); font-size:16.5px; max-width:60ch;}
body.rd.rd-home .paths{display:grid; grid-template-columns:1fr 1fr; border:1px solid var(--line); background:var(--paper);}
body.rd.rd-home .path{padding:36px 34px 34px;}
body.rd.rd-home .path + .path{border-left:1px solid var(--line);}
body.rd.rd-home .path h3{font-size:23px; margin:8px 0 0;}
body.rd.rd-home .path p{margin:10px 0 0; color:var(--ink-2); font-size:15.5px;}
body.rd.rd-home .path ul{margin:18px 0 0; padding:0; list-style:none; display:grid; gap:9px;}
body.rd.rd-home .path li{font-size:15px!important; padding-left:18px; position:relative; color:var(--ink-2); margin:0;}
body.rd.rd-home .path li::before{content:""; position:absolute; left:0; top:.62em; width:7px; height:1px; background:var(--blue);}
body.rd.rd-home .path .go{display:inline-block; margin-top:22px; font-weight:600; font-size:14.5px;}
body.rd.rd-home .findings{border-top:1px solid var(--ink);}
body.rd.rd-home .finding{display:grid; grid-template-columns:170px 1fr 220px; gap:28px; padding:26px 0; border-bottom:1px solid var(--hair); align-items:start;}
body.rd.rd-home .f-metric{font-family:var(--mono); font-variant-numeric:tabular-nums; font-size:27px; font-weight:600; letter-spacing:-.02em; line-height:1.15;}
body.rd.rd-home .f-metric span{display:block; font-size:10.5px; font-weight:500; letter-spacing:.1em; text-transform:uppercase; color:var(--ink-3); margin-top:7px;}
body.rd.rd-home .f-body h3{font-size:19px; line-height:1.3; margin:0;}
body.rd.rd-home .f-body p{margin:8px 0 0; font-size:15px!important; color:var(--ink-2); max-width:52ch;}
body.rd.rd-home .f-cite{font-family:var(--mono); font-size:11.5px; line-height:1.6; color:var(--ink-3); padding-top:5px;}
body.rd.rd-home .f-cite a{color:var(--ink-2);}
body.rd.rd-home .analysis{background:var(--paper); border:1px solid var(--line); padding:38px 36px;}
body.rd.rd-home .analysis-tag{display:inline-flex; align-items:center; gap:10px; font-family:var(--mono); font-size:10.5px; letter-spacing:.13em; text-transform:uppercase; color:var(--blue);}
body.rd.rd-home .analysis-tag::before{content:""; width:22px; height:1px; background:var(--blue);}
body.rd.rd-home .analysis h3{font-size:clamp(23px,3vw,31px); line-height:1.16; letter-spacing:-.018em; margin:16px 0 0; max-width:24ch;}
body.rd.rd-home .analysis > p{margin:16px 0 0; font-size:16.5px; color:var(--ink-2); max-width:62ch;}
body.rd.rd-home .analysis-links{margin-top:26px; display:grid; border-top:1px solid var(--hair);}
body.rd.rd-home .analysis-links a{display:grid; grid-template-columns:1fr auto; gap:20px; align-items:baseline; padding:14px 0; border-bottom:1px solid var(--hair); color:var(--ink); font-weight:600; font-size:15.5px;}
body.rd.rd-home .analysis-links a:hover{text-decoration:none; color:var(--blue);}
body.rd.rd-home .analysis-links .note{font-weight:400; font-size:13px; color:var(--ink-3); text-align:right;}
body.rd.rd-home .kb{display:grid; grid-template-columns:repeat(3,1fr); border-top:1px solid var(--ink);}
body.rd.rd-home .kb-col{padding:24px 26px 26px; border-bottom:1px solid var(--hair); border-left:1px solid var(--hair);}
body.rd.rd-home .kb-col:nth-child(3n+1){border-left:none; padding-left:0;}
body.rd.rd-home .kb-col h4{font-family:var(--mono); font-size:10.5px; letter-spacing:.13em; text-transform:uppercase; color:var(--ink-3); font-weight:500; margin:0;}
body.rd.rd-home .kb-col ul{margin:14px 0 0; padding:0; list-style:none; display:grid; gap:8px;}
body.rd.rd-home .kb-col li{margin:0; font-size:15px!important;}
body.rd.rd-home .kb-col a{color:var(--ink);} body.rd.rd-home .kb-col a:hover{color:var(--blue);}
body.rd.rd-home .practice{display:grid; grid-template-columns:1fr 350px; gap:56px; align-items:start;}
body.rd.rd-home .svc{display:grid; grid-template-columns:1fr 1fr; border-top:1px solid var(--line);}
body.rd.rd-home .svc a{padding:15px 18px 15px 0; border-bottom:1px solid var(--hair); font-size:15.5px; color:var(--ink); display:block;}
body.rd.rd-home .svc a:nth-child(even){padding-left:18px; border-left:1px solid var(--hair);}
body.rd.rd-home .svc a:hover{color:var(--blue); text-decoration:none;}
body.rd.rd-home .nap{background:var(--paper); border:1px solid var(--line); padding:28px 26px;}
body.rd.rd-home .nap h3{font-size:19px; margin:0;}
body.rd.rd-home .nap dl{margin:20px 0 0; display:grid; gap:14px;}
body.rd.rd-home .nap dt{font-family:var(--mono); font-size:10.5px; letter-spacing:.12em; text-transform:uppercase; color:var(--ink-3); font-weight:500; margin:0;}
body.rd.rd-home .nap dd{margin:4px 0 0; font-size:15px; color:var(--ink); line-height:1.5;}
body.rd.rd-home .nap .btn{margin-top:24px; width:100%; text-align:center; background:var(--ink); color:var(--ground)!important; border-color:var(--ink);}
body.rd.rd-home .brief{background:var(--navy); color:var(--navy-ink); padding:46px 44px; display:grid; grid-template-columns:1fr 380px; gap:48px; align-items:center;}
body.rd.rd-home .brief h3{font-size:29px; letter-spacing:-.018em; color:var(--navy-ink); max-width:18ch; margin:8px 0 0;}
body.rd.rd-home .brief p{margin:12px 0 0; color:var(--navy-soft); font-size:15.5px; max-width:46ch;}
body.rd.rd-home .brief .eyebrow{color:var(--columbia);}
body.rd.rd-home .brief form{display:flex; border:1px solid var(--navy-soft);}
body.rd.rd-home .brief input{flex:1; min-width:0; background:transparent; border:none; padding:14px 16px; color:var(--navy-ink); font-family:inherit; font-size:15px;}
body.rd.rd-home .brief input::placeholder{color:var(--navy-soft);}
body.rd.rd-home .brief button{background:var(--columbia); color:#0B2137; border:none; padding:14px 22px; font-family:inherit; font-weight:600; font-size:14.5px; cursor:pointer;}
body.rd.rd-home .brief .fine{margin-top:12px; font-size:12.5px; color:var(--navy-soft);}
body.rd.rd-home .faq{border-top:1px solid var(--ink);}
body.rd.rd-home .faq details{border-top:0; border-bottom:1px solid var(--hair);}
body.rd.rd-home .faq summary{padding:20px 0; font-size:19px;}
body.rd.rd-home .faq details p{padding:0 0 22px; max-width:66ch; color:var(--ink-2); font-size:15.5px!important; margin:0;}
body.rd.rd-home .whats-new{border:1px solid var(--line); background:var(--paper); padding:24px 26px; margin:0;}
body.rd.rd-home .whats-new h3{margin:0 0 12px; font-family:var(--mono); font-size:11px; letter-spacing:.13em; text-transform:uppercase; color:var(--ink-3);}
body.rd.rd-home .whats-new p{font-size:15px!important; border-bottom:1px solid var(--hair); padding:10px 0; margin:0;}
body.rd.rd-home .whats-new p:last-child{border-bottom:0;}
@media(max-width:860px){
  body.rd.rd-home .hero-in{grid-template-columns:1fr; padding-top:52px; gap:34px;}
  body.rd.rd-home .hero-portrait{display:none;}
  body.rd.rd-home .rail-in{grid-template-columns:1fr 1fr;}
  body.rd.rd-home .rail-item{border-left:none; border-top:1px solid var(--navy-2); padding-left:0;}
  body.rd.rd-home .rail-item:nth-child(even){border-left:1px solid var(--navy-2); padding-left:22px;}
  body.rd.rd-home .paths{grid-template-columns:1fr;} body.rd.rd-home .path + .path{border-left:none; border-top:1px solid var(--line);}
  body.rd.rd-home .finding{grid-template-columns:1fr; gap:14px;} body.rd.rd-home .f-cite{border-top:1px solid var(--hair); padding-top:12px;}
  body.rd.rd-home .kb{grid-template-columns:1fr;} body.rd.rd-home .kb-col{border-left:none; padding-left:0;}
  body.rd.rd-home .practice{grid-template-columns:1fr; gap:36px;} body.rd.rd-home .svc{grid-template-columns:1fr;}
  body.rd.rd-home .svc a:nth-child(even){padding-left:0; border-left:none;}
  body.rd.rd-home .brief{grid-template-columns:1fr; gap:28px; padding:36px 26px;}
  body.rd.rd-home .analysis-links a{grid-template-columns:1fr;} body.rd.rd-home .analysis-links .note{text-align:left;}
}

/* ---------- in-article practice CTA + evidence brief (pass 4, 2026-09-02) ---------- */
body.rd .practice-cta{margin:30px 0; font-size:16px;}
body.rd .practice-cta p{margin:0;}
body.rd .practice-cta a{font-weight:600;}
body.rd .brief-inline{
  margin:44px 0 0; padding:28px 30px; background:var(--navy); color:var(--navy-ink);
  display:grid; grid-template-columns:1.2fr 1fr; gap:28px; align-items:center;
}
body.rd .brief-inline .eyebrow{color:var(--columbia);}
body.rd .brief-inline h3{margin:6px 0 0; color:var(--navy-ink); font-size:24px;}
body.rd .brief-inline p{margin:8px 0 0; color:var(--navy-soft); font-size:15px!important;}
body.rd .brief-inline form{display:flex; border:1px solid var(--navy-soft);}
body.rd .brief-inline input[type=email]{flex:1; min-width:0; background:transparent; border:0; padding:13px 14px; color:var(--navy-ink); font-family:inherit; font-size:15px;}
body.rd .brief-inline input::placeholder{color:var(--navy-soft);}
body.rd .brief-inline button{background:var(--columbia); color:#0B2137; border:0; padding:13px 20px; font-family:inherit; font-weight:600; font-size:14.5px; cursor:pointer;}
@media(max-width:700px){ body.rd .brief-inline{grid-template-columns:1fr; padding:24px 22px;} }

/* ---------- misc ---------- */
body.rd .press-photos img{width:100%; height:auto;}
body.rd .nyc-hero,body.rd .speaker-hero,body.rd .faq-hero,body.rd .credentials-banner{margin-bottom:26px;}
body.rd .subtitle{font-family:var(--serif); font-size:1.2em; color:var(--ink-2); margin:-8px 0 20px;}
body.rd .pending{color:var(--warn);} body.rd .error{color:var(--warn);}
body.rd .symptom-grid,body.rd .challenge-grid,body.rd .topic-grid,body.rd .expertise-grid,body.rd .affiliations-grid,body.rd .research-grid{margin:22px 0;}
body.rd .drug-category{margin:26px 0 10px; font-weight:600;}
body.rd iframe{max-width:100%;}
body.rd .whats-new time{font-weight:600; color:var(--ink);}

/* ---------- motion / print ---------- */
@media (prefers-reduced-motion:reduce){ body.rd *{animation:none!important; transition:none!important; scroll-behavior:auto!important;} }
@media print{
  body.rd{background:#fff; color:#000; padding:0; font-size:11.5pt;}
  body.rd header.site,body.rd footer.site .foot-grid,body.rd .rd-dock,body.rd #related-content,body.rd .cta-box,body.rd .cta-button,body.rd .brief{display:none!important;}
  body.rd > main,body.rd > article{max-width:none; padding:0;}
  body.rd a{color:#000; text-decoration:underline;}
  body.rd a[href^="http"]::after{content:" (" attr(href) ")"; font-size:.85em; color:#444;}
  body.rd table,body.rd .tbl{break-inside:avoid;}
  body.rd th,body.rd .th-row td{background:#eee!important; color:#000!important;}
}