:root{
  --bg:#fbfaf7;
  --paper:#ffffff;
  --ink:#191919;
  --muted:#6d6a65;
  --line:#dedbd3;
  --accent:#234b57;
  --accent-2:#d9e6e7;
  --max:1120px;
  --serif: Georgia, 'Times New Roman', serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
a:hover{color:var(--accent)}
.container{width:min(calc(100% - 40px),var(--max));margin:0 auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(251,250,247,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(222,219,211,.85)}
.nav{min-height:74px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{font-family:var(--serif);font-size:1.08rem;letter-spacing:.01em}
.nav-links{display:flex;gap:24px;font-size:.92rem;color:var(--muted)}
.nav-links a[aria-current="page"]{color:var(--ink)}
.menu{display:none;background:none;border:0;font:inherit;font-size:1.4rem}
main{padding:62px 0 90px}
.eyebrow{text-transform:uppercase;letter-spacing:.14em;color:var(--accent);font-size:.72rem;font-weight:700;margin-bottom:16px}
h1,h2,h3{font-family:var(--serif);font-weight:500;line-height:1.12;margin:0 0 18px}
h1{font-size:clamp(3rem,7vw,5.8rem);letter-spacing:-.04em}
h2{font-size:clamp(2rem,4vw,3rem);letter-spacing:-.03em}
h3{font-size:1.35rem}
p{margin:0 0 18px}
.lede{font-size:1.18rem;max-width:760px;color:#373632}
.hero{padding:50px 0 70px;border-bottom:1px solid var(--line)}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 22px;color:var(--muted);font-size:.95rem;margin:22px 0 28px}
.ctas{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;border:1px solid var(--ink);font-size:.92rem}
.btn.primary{background:var(--ink);color:white}
.btn.secondary{border-color:var(--line)}
.section{padding:68px 0;border-bottom:1px solid var(--line)}
.section-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:28px}
.section-head p{max-width:560px;color:var(--muted)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--paper);border:1px solid var(--line);padding:24px;min-height:260px;display:flex;flex-direction:column;justify-content:space-between}
.card-kicker{font-size:.72rem;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);margin-bottom:14px}
.card p{color:#494742;font-size:.95rem}
.card-link{font-size:.9rem;font-weight:650;color:var(--accent);margin-top:10px}
.metric-row{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.metric{padding:22px 18px;border-right:1px solid var(--line)}
.metric:last-child{border-right:0}
.metric .num{font-family:var(--serif);font-size:1.65rem}
.metric .label{display:block;color:var(--muted);font-size:.82rem;margin-top:4px}
.tags{display:flex;flex-wrap:wrap;gap:9px}
.tag{padding:7px 10px;border:1px solid var(--line);background:white;font-size:.82rem}
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px}
.list{display:grid;gap:0;border-top:1px solid var(--line)}
.list-item{padding:22px 0;border-bottom:1px solid var(--line)}
.list-item .meta{font-size:.8rem;color:var(--muted);margin-bottom:7px}
.pub-title{font-family:var(--serif);font-size:1.18rem;line-height:1.35;margin-bottom:7px}
.small{font-size:.88rem;color:var(--muted)}
.page-intro{padding:24px 0 38px;border-bottom:1px solid var(--line)}
.page-intro .lede{max-width:820px}
.project-hero{padding:26px 0 34px}
.project-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:42px}
.project-aside{border-top:1px solid var(--line);padding-top:14px}
.fact{padding:16px 0;border-bottom:1px solid var(--line)}
.fact dt{font-size:.73rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted)}
.fact dd{margin:3px 0 0}
.figure{margin:26px 0;background:linear-gradient(135deg,#eef2f1,#faf9f5);border:1px solid var(--line);min-height:270px;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.figure::before,.figure::after{content:'';position:absolute;border:1px solid rgba(35,75,87,.28);border-radius:50%}
.figure::before{width:230px;height:230px}
.figure::after{width:150px;height:150px}
.figure .figure-label{position:relative;z-index:1;text-align:center;color:var(--accent);font-size:.9rem;letter-spacing:.08em;text-transform:uppercase}
.note{padding:18px 20px;border-left:3px solid var(--accent);background:var(--accent-2);margin:22px 0;color:#264047}
footer{padding:28px 0 40px;color:var(--muted);font-size:.85rem}
.footer-inner{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.formula{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.9rem;color:#3f3e3a}
@media (max-width:820px){
  .nav-links{display:none;position:absolute;top:74px;left:0;right:0;background:var(--bg);border-bottom:1px solid var(--line);padding:18px 20px;flex-direction:column;gap:14px}
  .nav-links.open{display:flex}.menu{display:block}.grid-3,.split,.project-layout{grid-template-columns:1fr}.metric-row{grid-template-columns:1fr 1fr}.metric:nth-child(2){border-right:0}.metric:nth-child(-n+2){border-bottom:1px solid var(--line)}
}
@media (max-width:520px){.container{width:min(calc(100% - 28px),var(--max))}main{padding-top:38px}.hero{padding-top:28px}.metric-row{grid-template-columns:1fr}.metric{border-right:0;border-bottom:1px solid var(--line)!important}.metric:last-child{border-bottom:0!important}.card{min-height:auto}}
@media print{.site-header,footer,.ctas{display:none}.hero{border-bottom:0;padding-bottom:20px}.section{padding:20px 0}}