:root{
  --bg:#f5f2ea;--paper:#fbfaf6;--ink:#151916;--muted:#626861;--line:#d9d5ca;
  --accent:#315c4b;--accent2:#8d6534;--dark:#101713;--soft:#e9eee9;--max:1180px;
  --serif:Georgia,'Times New Roman',serif;--sans:Inter,ui-sans-serif,system-ui,-apple-system,'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}
a{color:inherit}.wrap{width:min(calc(100% - 40px),var(--max));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(245,242,234,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(21,25,22,.08)}
.nav{height:74px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{text-decoration:none;display:flex;align-items:center;gap:12px;font-weight:750;letter-spacing:-.02em}.mark{width:34px;height:34px;border:1px solid var(--ink);display:grid;place-items:center;border-radius:50%;font-family:var(--serif);font-size:18px}.navlinks{display:flex;gap:24px;font-size:14px}.navlinks a{text-decoration:none;color:var(--muted)}.navlinks a:hover{color:var(--ink)}
.hero{padding:96px 0 72px;border-bottom:1px solid var(--line);background:radial-gradient(circle at 76% 20%,rgba(49,92,75,.10),transparent 31%)}
.kicker{text-transform:uppercase;letter-spacing:.16em;font-size:12px;font-weight:750;color:var(--accent)}
h1,h2,h3{font-family:var(--serif);font-weight:500;line-height:1.05;letter-spacing:-.035em}h1{font-size:clamp(48px,8vw,98px);max-width:980px;margin:16px 0 26px}h2{font-size:clamp(34px,5vw,58px);margin:0 0 18px}h3{font-size:27px}.lede{font-size:clamp(19px,2.3vw,27px);max-width:850px;color:#404640;line-height:1.48}.hero-meta{margin-top:38px;display:flex;gap:28px;flex-wrap:wrap;color:var(--muted);font-size:14px}.hero-meta strong{color:var(--ink)}
.section{padding:78px 0}.section-head{display:grid;grid-template-columns:1fr 1.35fr;gap:40px;margin-bottom:36px}.section-head p{margin:4px 0 0;color:var(--muted);font-size:18px;max-width:640px}
.paper-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:20px}.paper-card{background:var(--paper);border:1px solid var(--line);padding:34px;border-radius:4px;min-height:365px;display:flex;flex-direction:column;justify-content:space-between;text-decoration:none;transition:.25s}.paper-card:hover{transform:translateY(-3px);box-shadow:0 18px 45px rgba(30,39,33,.08)}.paper-id{display:flex;justify-content:space-between;gap:20px;font-size:12px;text-transform:uppercase;letter-spacing:.13em;color:var(--muted)}.badge{border:1px solid var(--line);padding:5px 8px;border-radius:999px;background:#fff}.paper-card h3{font-size:clamp(28px,4vw,46px);max-width:820px;margin:38px 0 14px}.paper-card p{color:var(--muted);max-width:700px}.card-link{margin-top:28px;font-weight:700}.embargo{background:var(--dark);color:#e9eee9;border-color:var(--dark)}.embargo p,.embargo .paper-id{color:#aab4ad}.embargo .badge{background:transparent;border-color:#3b473f}
.stats{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);background:var(--paper)}.stat{padding:28px;border-right:1px solid var(--line)}.stat:last-child{border-right:0}.stat b{font-family:var(--serif);font-size:42px;font-weight:500;display:block;line-height:1}.stat span{font-size:13px;color:var(--muted);display:block;margin-top:10px}
.principles{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.principle{border-top:1px solid var(--ink);padding-top:18px}.principle span{font-size:12px;color:var(--accent);font-weight:800;letter-spacing:.12em}.principle h3{font-size:26px;margin:12px 0}.principle p{color:var(--muted)}
.site-footer{background:var(--dark);color:#dfe6e0;padding:62px 0 32px;margin-top:40px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px}.footer-grid p,.footer-grid a{color:#9eaaa2;font-size:14px}.footer-grid a{display:block;text-decoration:none;margin:7px 0}.footer-bottom{border-top:1px solid #2c3730;margin-top:40px;padding-top:22px;font-size:12px;color:#7f8d83}
/* paper */
.paper-hero{padding:70px 0 48px;border-bottom:1px solid var(--line)}.paper-title{font-size:clamp(44px,7vw,78px);max-width:1080px}.paper-submeta{display:flex;gap:18px;flex-wrap:wrap;margin-top:24px;color:var(--muted);font-size:14px}.paper-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:30px}.btn{display:inline-flex;align-items:center;gap:8px;text-decoration:none;border:1px solid var(--ink);padding:11px 15px;font-size:13px;font-weight:750}.btn.primary{background:var(--ink);color:#fff}.btn:hover{opacity:.82}.paper-layout{display:grid;grid-template-columns:260px minmax(0,760px);gap:64px;justify-content:center;padding:64px 0}.toc{position:sticky;top:102px;align-self:start;font-size:13px}.toc b{font-size:11px;text-transform:uppercase;letter-spacing:.12em}.toc a{display:block;text-decoration:none;color:var(--muted);padding:5px 0}.toc a:hover{color:var(--ink)}.article{font-family:var(--serif);font-size:18px}.article p{margin:0 0 22px}.article h2{font-size:38px;margin:64px 0 22px}.article h3{font-size:25px;margin:38px 0 14px}.article ul,.article ol{padding-left:24px}.callout{font-family:var(--sans);background:var(--soft);border-left:3px solid var(--accent);padding:22px 24px;margin:32px 0}.callout strong{display:block;margin-bottom:6px}.abstract{font-size:21px;line-height:1.62;color:#343a35}.chart{font-family:var(--sans);border:1px solid var(--line);background:var(--paper);padding:24px;margin:34px 0}.chart-title{font-weight:800;font-size:14px;margin-bottom:18px}.bar-row{display:grid;grid-template-columns:120px 1fr 62px;gap:12px;align-items:center;margin:12px 0}.bar-track{height:12px;background:#e6e2d8}.bar-fill{height:100%;background:var(--accent)}.bar-fill.gold{background:var(--accent2)}.bar-val{text-align:right;font-variant-numeric:tabular-nums}.mini-note{font-size:12px;color:var(--muted);margin-top:12px}.table-wrap{overflow:auto;margin:28px 0}table{width:100%;border-collapse:collapse;font-family:var(--sans);font-size:14px}th,td{padding:12px 10px;border-bottom:1px solid var(--line);text-align:left}th{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.citebox{font-family:var(--sans);background:var(--dark);color:#e9eee9;padding:26px;margin:40px 0}.citebox code{display:block;white-space:pre-wrap;font-size:12px;color:#c9d3cb}.notice{border:1px solid var(--accent2);background:#fbf2e5;padding:15px 18px;font-size:13px;margin-top:24px}.muted{color:var(--muted)}
@media(max-width:900px){.navlinks{display:none}.section-head,.paper-grid,.footer-grid,.paper-layout{grid-template-columns:1fr}.stats{grid-template-columns:1fr 1fr}.stat:nth-child(2){border-right:0}.stat:nth-child(-n+2){border-bottom:1px solid var(--line)}.principles{grid-template-columns:1fr}.toc{position:static;border-bottom:1px solid var(--line);padding-bottom:22px}.hero{padding-top:70px}}
@media(max-width:560px){.wrap{width:min(calc(100% - 26px),var(--max))}.stats{grid-template-columns:1fr}.stat{border-right:0;border-bottom:1px solid var(--line)}.stat:last-child{border-bottom:0}.paper-card{padding:24px}.section{padding:56px 0}.paper-layout{padding:40px 0}.article{font-size:17px}}

/* v1.1 editorial refinement */
.paper-hero{padding:62px 0 42px;background:linear-gradient(180deg,rgba(255,255,255,.14),rgba(255,255,255,0))}
.paper-title{font-size:clamp(42px,6.15vw,70px);max-width:1040px;margin-top:20px;margin-bottom:24px}
.paper-hero .lede{max-width:900px}
.paper-submeta{font-size:13px;gap:0;margin-top:25px;color:#73786f}
.paper-submeta span{display:inline-flex;align-items:center}
.paper-submeta span+span:before{content:"·";margin:0 11px;color:#aaa69a}
.paper-submeta strong{color:var(--ink)}
.paper-actions{margin-top:26px}
.btn{position:relative;min-height:42px;padding:10px 14px;background:rgba(251,250,246,.55);transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease}
.btn:hover{opacity:1;background:var(--paper);transform:translateY(-1px)}
.btn.primary:hover{background:#26322b;border-color:#26322b}
.btn-icon{font-size:14px;line-height:1;opacity:.7;font-weight:500}
.publication-note{display:flex;gap:14px;align-items:flex-start;margin-top:22px;padding:13px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:12.5px;color:var(--muted)}
.publication-note-label{flex:none;text-transform:uppercase;letter-spacing:.11em;font-size:10px;font-weight:800;color:var(--accent)}
.paper-meta-band{border-bottom:1px solid var(--line);background:rgba(251,250,246,.38)}
.meta-band-inner{min-height:54px;display:flex;align-items:center;gap:0;flex-wrap:wrap;font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.meta-band-inner span{padding-right:20px;margin-right:20px;border-right:1px solid var(--line)}
.meta-band-inner span:last-child{border-right:0}
.meta-band-inner b{color:var(--ink);font-weight:800;margin-right:5px}
.paper-layout{grid-template-columns:220px minmax(0,780px);gap:72px;padding-top:58px}
.toc{top:96px;padding-top:6px}
.toc b{display:block;margin-bottom:9px}
.toc a{position:relative;padding:5px 0 5px 12px;border-left:1px solid transparent;transition:.18s ease}
.toc a:hover{border-left-color:#aab1aa}
.toc a.active{color:var(--ink);font-weight:700;border-left-color:var(--accent)}
.toc a.active:before{content:"";position:absolute;left:-2px;top:10px;width:3px;height:10px;background:var(--accent)}
.article h2{scroll-margin-top:104px}
.article h3{scroll-margin-top:104px}
.key-findings{font-family:var(--sans);display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border:1px solid var(--line);background:var(--paper);margin:24px 0 34px}
.key-finding{padding:24px 25px;min-height:142px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);display:flex;flex-direction:column;justify-content:space-between;gap:16px}
.key-finding:nth-child(2n){border-right:0}
.key-finding:nth-last-child(-n+2){border-bottom:0}
.key-finding strong{font-family:var(--serif);font-size:42px;line-height:1;font-weight:500;letter-spacing:-.04em;color:var(--ink)}
.key-finding span{font-size:12.5px;line-height:1.45;color:var(--muted);max-width:290px}
.chart-wide{margin-left:-18px;margin-right:-18px;padding:26px 28px}
.chart-title{letter-spacing:.01em}
.end-matter{font-family:var(--sans);display:grid;grid-template-columns:1.35fr .85fr .85fr;border:1px solid var(--line);margin:60px 0 18px;background:var(--paper)}
.end-matter-card{padding:26px;border-right:1px solid var(--line);margin:0!important;background:transparent!important;color:var(--ink)!important}
.end-matter-card:last-child{border-right:0}
.end-matter-card h3{font-family:var(--serif);font-size:24px;margin:9px 0 11px}
.end-matter-card p{font-size:13px;line-height:1.55;color:var(--muted);margin-bottom:10px}
.end-matter .citebox strong{display:block;text-transform:uppercase;font-size:10px;letter-spacing:.1em;color:var(--accent);margin-bottom:14px}
.end-matter .citebox code{font-size:11.5px;line-height:1.55;color:#3f4942}
.end-label{text-transform:uppercase;font-size:10px;letter-spacing:.1em;color:var(--accent);font-weight:800}
.text-link{font-size:12px;font-weight:800;text-decoration:none;border-bottom:1px solid var(--ink);padding-bottom:2px}
.author-note{font-family:var(--sans);font-size:12px!important;line-height:1.55}

@media(max-width:900px){
  .paper-layout{grid-template-columns:1fr;gap:28px}.toc{display:flex;overflow:auto;gap:4px;position:static;border-bottom:1px solid var(--line);padding:0 0 16px}.toc b{display:none}.toc a{white-space:nowrap;border:1px solid var(--line);padding:7px 10px}.toc a.active{border-color:var(--accent)}.toc a.active:before{display:none}
  .chart-wide{margin-left:0;margin-right:0}.end-matter{grid-template-columns:1fr}.end-matter-card{border-right:0;border-bottom:1px solid var(--line)}.end-matter-card:last-child{border-bottom:0}
}
@media(max-width:620px){
  .paper-title{font-size:clamp(38px,12vw,52px)}.paper-submeta{display:grid;gap:4px}.paper-submeta span+span:before{display:none}.publication-note{display:grid;gap:5px}.meta-band-inner{padding:10px 0;gap:8px}.meta-band-inner span{border:0;margin:0;padding:0 13px 0 0}.key-findings{grid-template-columns:1fr}.key-finding{border-right:0!important;border-bottom:1px solid var(--line)!important;min-height:122px}.key-finding:last-child{border-bottom:0!important}.key-finding strong{font-size:38px}.chart{padding:20px}.bar-row{grid-template-columns:92px 1fr 55px;font-size:12px}.paper-actions .btn{flex:1 1 calc(50% - 8px);justify-content:center}
}

/* v1.2 branding + authorship */
.brand-logo{gap:10px}.lf-logo{height:28px;width:auto;display:block;max-width:168px}.research-word{font-size:12px;text-transform:uppercase;letter-spacing:.16em;color:var(--accent);font-weight:800;border-left:1px solid var(--line);padding-left:10px}.site-footer .research-word{color:#aebdb4;border-color:#344239}.lf-logo-footer{filter:brightness(0) invert(1);opacity:.92}.author-feature{padding-top:48px}.author-feature-card{display:grid;grid-template-columns:180px 1fr;gap:32px;align-items:center;background:var(--paper);border:1px solid var(--line);padding:28px}.author-photo{width:180px;height:180px;object-fit:cover;border-radius:2px;filter:saturate(.78) contrast(1.02)}.author-feature-card h3{font-size:36px;margin:8px 0 12px}.author-feature-card p{color:var(--muted);max-width:650px}.author-hero h1{max-width:900px}.author-profile{display:grid;grid-template-columns:300px minmax(0,650px);gap:58px;align-items:start}.author-photo-lg{width:300px;height:360px}.lede-sm{font-family:var(--serif);font-size:21px;line-height:1.5;color:#3e443f}.author-links{display:flex;gap:10px;flex-wrap:wrap;margin:24px 0 32px}.author-meta-grid{display:grid;grid-template-columns:1fr;gap:0;border-top:1px solid var(--line)}.author-meta-grid>div{display:grid;grid-template-columns:140px 1fr;gap:20px;padding:14px 0;border-bottom:1px solid var(--line);font-size:14px}.author-meta-grid span{color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-size:11px}.key-kicker{margin-top:42px;margin-bottom:-10px}.bibtex-card{position:relative;grid-column:1/-1}.bibtex-card pre{overflow:auto;background:#121713;color:#e7eee9;padding:18px;font-size:12px;line-height:1.55;margin:14px 0 0}.copy-btn{position:absolute;right:18px;top:18px;border:1px solid var(--line);background:transparent;padding:7px 10px;font:700 11px var(--sans);text-transform:uppercase;letter-spacing:.08em;cursor:pointer}.copy-btn:hover{background:var(--soft)}
@media(max-width:760px){.lf-logo{max-width:128px;height:22px}.research-word{font-size:10px}.author-feature-card,.author-profile{grid-template-columns:1fr}.author-photo{width:130px;height:130px}.author-photo-lg{width:180px;height:220px}.author-meta-grid>div{grid-template-columns:1fr;gap:4px}}