:root{color-scheme:light;--ink:#202c31;--muted:#526269;--accent:#17698e;--line:#dce3e4}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--ink);font:16px/1.65 system-ui,-apple-system,"Segoe UI",sans-serif}
a{color:var(--accent);text-underline-offset:3px}
a:hover{color:#0c4867}
a:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
.wrap{width:min(880px,calc(100% - 40px));margin-inline:auto}
.skip{position:absolute;top:-60px;left:12px;background:#fff;padding:10px;z-index:2}
.skip:focus{top:12px}
.site-header{border-bottom:1px solid var(--line)}
.nav{min-height:70px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{color:var(--ink);font-weight:700;text-decoration:none;white-space:nowrap}
.nav-links{display:flex;flex-wrap:wrap;gap:8px 22px;font-size:.88rem}
.nav-links a{text-decoration:none}
.nav-links a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.23;letter-spacing:-.025em}
h1{font-size:clamp(2.4rem,5vw,3.8rem);max-width:780px;margin:15px 0 22px}
h2{font-size:clamp(1.8rem,3vw,2.35rem);margin:8px 0 21px}
h3{font-size:1.2rem;margin:0 0 10px}
p{margin:0 0 16px}
.label{color:var(--accent);font-size:.73rem;font-weight:700;letter-spacing:.12em}
.hero{padding:86px 0 94px}
.lead{font-size:1.25rem;max-width:690px;line-height:1.5}
.authors{color:var(--muted);font-size:.95rem;margin:26px 0 25px}
.paper-links{display:flex;flex-wrap:wrap;gap:12px}
.button{display:inline-block;padding:10px 16px;background:var(--accent);border:1px solid var(--accent);border-radius:4px;color:#fff;text-decoration:none;font-weight:600;font-size:.9rem}
.button:hover{background:#0c4867;color:#fff}
.button-outline{background:#fff;color:var(--accent)}
.button-outline:hover{background:#f1f6f8;color:var(--accent)}
.section{padding:64px 0;border-top:1px solid var(--line);scroll-margin-top:20px}
.text{max-width:720px}
.text strong,.result-note strong{font-weight:700}
figure{margin:32px 0 12px}
figure img{display:block;width:100%;height:auto;border:1px solid var(--line);border-radius:4px;padding:8px;background:#fff}
figcaption{font-size:.85rem;color:var(--muted);line-height:1.55;margin-top:10px;max-width:760px}
figcaption strong{color:var(--ink)}
.result-note{max-width:720px;margin-top:52px}
.result-note p:last-child{margin-bottom:0}
.more-figure{max-width:760px;margin-top:30px}
.more-figure summary{color:var(--accent);cursor:pointer;font-weight:600}
.more-figure figure{margin-top:20px}
.small{max-width:720px;color:var(--muted);font-size:.9rem}
.sources ul{list-style:none;padding:0;margin:0;max-width:680px;border-top:1px solid var(--line)}
.sources li{padding:17px 0;border-bottom:1px solid var(--line)}
.sources li a{font-weight:650}
.sources li span{display:block;color:var(--muted);font-size:.9rem}
.footer{display:flex;justify-content:space-between;gap:15px;padding:30px 0 48px;border-top:1px solid var(--line);font-size:.88rem;color:var(--muted)}
@media(max-width:620px){.nav{padding:15px 0;align-items:flex-start;flex-direction:column;gap:5px}.nav-links{gap:8px 15px;font-size:.82rem}.hero{padding:65px 0 70px}.section{padding:48px 0}.lead{font-size:1.1rem}.footer{flex-direction:column}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}