:root{
  --ink:#16212b; --muted:#5d6b76; --paper:#fbfaf7; --white:#fff;
  --line:#d9dfe3; --soft:#eef2f3; --blue:#173a52; --blue2:#285d78;
  --gold:#9b6e2f; --max:1180px; --serif:Georgia,"Times New Roman",serif;
  --sans:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);line-height:1.65;font-size:17px}
a{color:var(--blue2);text-decoration-thickness:1px;text-underline-offset:3px} a:hover{color:var(--blue)}
.container{width:min(calc(100% - 40px),var(--max));margin:0 auto}.narrow{width:min(calc(100% - 40px),850px);margin:0 auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(251,250,247,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{height:82px;display:flex;align-items:center;gap:30px}.brand{display:flex;align-items:center;text-decoration:none;color:var(--ink);margin-right:auto;min-width:252px}.brand-logo{display:block;width:252px;height:auto}.nav-links{display:flex;align-items:center;gap:23px;font-size:14px;font-weight:620}.nav-links a{text-decoration:none;color:#34424c}.nav-links a:hover,.nav-links a[aria-current="page"]{color:var(--blue)}.lang{padding-left:15px;border-left:1px solid var(--line);font-weight:700}.menu-btn{display:none;border:0;background:none;font-size:26px;padding:6px 0}
.hero{padding:84px 0 72px;border-bottom:1px solid var(--line)}.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:12px;font-weight:750;color:var(--gold);margin:0 0 16px}.hero h1{font-family:var(--serif);font-weight:500;letter-spacing:-.035em;font-size:clamp(46px,6.2vw,74px);line-height:.98;max-width:930px;margin:0 0 28px}.hero .lead{font-size:clamp(20px,2.4vw,28px);line-height:1.45;color:#394a55;max-width:850px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}.btn{display:inline-block;border:1px solid var(--blue);padding:11px 17px;border-radius:2px;text-decoration:none;font-size:14px;font-weight:700}.btn.primary{background:var(--blue);color:white}.btn.secondary{color:var(--blue);background:transparent}
.section{padding:68px 0}.section.alt{background:white;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.section h2,.page-hero h1{font-family:var(--serif);font-weight:500;letter-spacing:-.025em;line-height:1.08}.section h2{font-size:clamp(34px,4vw,48px);margin:0 0 18px}.section-intro{font-size:20px;color:#475965;max-width:800px;margin:0 0 36px}.kicker{font-size:13px;text-transform:uppercase;letter-spacing:.12em;color:var(--gold);font-weight:750}
.choice-strip{display:grid;grid-template-columns:1fr auto 1.15fr auto 1fr;align-items:center;gap:16px;margin:34px 0 0;padding:24px;border:1px solid var(--line);background:white}.choice-step{text-align:center;padding:18px 10px}.choice-step strong{display:block;font:500 22px/1.2 var(--serif);margin-bottom:6px}.choice-step.emph{background:var(--soft);border-top:3px solid var(--gold)}.choice-arrow{color:#8b989f;font-size:24px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.card{background:white;border:1px solid var(--line);padding:28px;border-radius:2px;box-shadow:none}.card h3{font:500 25px/1.2 var(--serif);margin:0 0 12px}.card p{margin:0;color:#4d5e69}.card .meta{font-size:13px;color:#78858d;margin-bottom:12px}.tag{display:inline-block;font-size:11px;letter-spacing:.08em;text-transform:uppercase;padding:5px 8px;border:1px solid #c8d0d5;border-radius:999px;margin:0 5px 7px 0;color:#52616a;background:#fafbfb}
.quote{font:500 clamp(26px,3.3vw,42px)/1.25 var(--serif);border-left:4px solid var(--gold);padding:4px 0 4px 26px;max-width:930px}.small{font-size:14px;color:var(--muted)}
.model-flow{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;align-items:stretch}.flow-box{border:1px solid var(--line);background:white;padding:18px 14px;min-height:118px}.flow-box strong{display:block;margin-bottom:8px;color:var(--blue)}.flow-box:nth-child(4){border-top:3px solid var(--gold)}
.dimensions{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.dimension{padding:22px;border:1px solid var(--line);background:white}.dimension b{display:block;margin-bottom:6px}.dimension span{color:#556670;font-size:15px}
.relationships{display:grid;grid-template-columns:1fr 90px 1fr;gap:20px;align-items:center;margin-top:28px}.node{padding:24px;border:1px solid var(--line);background:white;text-align:center}.node.main{border-top:3px solid var(--gold)}.rel-lines{font-size:13px;color:#667782;text-align:center;line-height:2.2}
.page-hero{padding:76px 0 48px;border-bottom:1px solid var(--line)}.page-hero h1{font-size:clamp(42px,5.5vw,66px);margin:0 0 16px}.page-hero p{font-size:21px;color:#52636d;max-width:800px}
.publication{display:grid;grid-template-columns:170px 1fr;gap:28px;padding:34px 0;border-bottom:1px solid var(--line)}.pub-badge{border:1px solid var(--line);background:white;padding:20px;align-self:start}.pub-badge strong{display:block;font:500 24px/1.2 var(--serif);margin-bottom:8px}.publication h2{font:500 30px/1.2 var(--serif);margin:0 0 10px}.authors{font-size:15px;color:#5f6e78}.citation{font-size:14px;color:#52636d;margin-top:10px}.pub-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.case-hero{background:white;color:var(--ink);padding:40px 0 8px;border-radius:0;border-top:2px solid var(--blue)}.case-hero .kicker{color:var(--gold)}.case-hero h2{font:500 clamp(32px,4vw,50px)/1.08 var(--serif);margin:8px 0 16px}.case-hero p{color:#445762;max-width:850px}.case-thesis{font:500 27px/1.35 var(--serif);margin:30px 0 0;padding-top:26px;border-top:1px solid rgba(255,255,255,.25);border-top:1px solid var(--line)}
.people{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.person{padding:22px;border:1px solid var(--line);background:white}.person h3{margin:0;font:500 23px/1.2 var(--serif)}.person .role{font-size:14px;color:#71808a;margin-top:5px}.person p{font-size:15px;color:#4e606a;margin-bottom:0}
.contact-box{border:1px solid var(--line);background:white;padding:36px}.email{font:500 clamp(24px,3vw,38px)/1.2 var(--serif);word-break:break-word}
.site-footer{border-top:1px solid var(--line);padding:34px 0 44px;color:#65757e;font-size:13px;background:#f7f6f2}.footer-grid{display:flex;gap:24px;align-items:flex-start}.footer-grid .footer-name{margin-right:auto;color:#34444e;font-weight:700;text-transform:uppercase;letter-spacing:.04em}.footer-grid a{color:#5f7079;text-decoration:none}
.prose h2{font:500 34px/1.2 var(--serif);margin:44px 0 14px}.prose h3{font:500 24px/1.25 var(--serif);margin:30px 0 10px}.prose p,.prose li{color:#3e505b}.prose ul{padding-left:22px}.callout{padding:24px;border-left:4px solid var(--gold);background:white;margin:28px 0}.note{background:var(--soft);padding:20px;border:1px solid #dfe5e7;font-size:15px;color:#4d5e68}
.legacy-note{padding:80px 0;text-align:center}.source-list li{margin-bottom:8px}

/* Case report hierarchy */
.report-levels{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:30px}.report-card{background:var(--paper);border:1px solid var(--line);padding:30px}.report-card-emph{background:white;border-top:3px solid var(--gold)}.report-card h3{font:500 28px/1.18 var(--serif);margin:6px 0 12px}.report-card p{color:#4d5e69;margin:0}.report-card .btn{margin-top:24px}.report-meta{font-size:12px;text-transform:uppercase;letter-spacing:.1em;color:#73818a;font-weight:700}.case-flow{display:grid;grid-template-columns:1fr auto 1fr auto 1.15fr auto 1fr;gap:12px;align-items:stretch;margin-top:30px}.flow-stage{border:1px solid var(--line);background:white;padding:22px 18px;min-height:128px}.flow-stage strong{display:block;font:500 21px/1.2 var(--serif);color:var(--blue);margin-bottom:8px}.flow-stage span{font-size:14px;color:#566873}.flow-stage.emph{border-top:3px solid var(--gold);background:var(--soft)}.flow-arrow{display:flex;align-items:center;justify-content:center;color:#8b989f;font-size:22px}
@media (max-width:900px){.nav{height:auto;min-height:72px;flex-wrap:wrap;padding:11px 0}.brand{min-width:0}.brand-logo{width:214px}.menu-btn{display:block;margin-left:auto}.nav-links{display:none;width:100%;flex-direction:column;align-items:flex-start;gap:0;padding:10px 0 8px}.nav-links.open{display:flex}.nav-links a{padding:8px 0}.lang{border-left:0;padding-left:0}.grid3,.grid2,.dimensions,.people{grid-template-columns:1fr}.model-flow{grid-template-columns:1fr}.choice-strip{grid-template-columns:1fr}.choice-arrow{transform:rotate(90deg);text-align:center}.relationships{grid-template-columns:1fr}.publication{grid-template-columns:1fr}.report-levels{grid-template-columns:1fr}.case-flow{grid-template-columns:1fr}.flow-arrow{transform:rotate(90deg)}.pub-badge{max-width:240px}.footer-grid{flex-wrap:wrap}.footer-grid .footer-name{width:100%}.hero{padding:66px 0 54px}.section{padding:54px 0}.case-hero{padding:30px}}
@media (max-width:520px){body{font-size:16px}.container,.narrow{width:min(calc(100% - 28px),var(--max))}.brand-logo{width:185px}.hero h1{font-size:46px}.actions{flex-direction:column}.btn{text-align:center}.card{padding:22px}}