:root{--ink:#1b1f24;--muted:#4a5560;--bg:#fbfaf7;--card:#fff;--line:#d9d6cf;--accent:#1d5e3a;--accent2:#0b4f8a}
*{box-sizing:border-box}
body{margin:0;font:1.0625rem/1.6 Georgia,"Times New Roman",serif;color:var(--ink);background:var(--bg)}
h1,h2,h3,nav,.btn,footer,.label{font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--accent2)}a:focus-visible,.btn:focus-visible{outline:3px solid #e0a800;outline-offset:2px}
.skip{position:absolute;left:-999px}.skip:focus{left:1rem;top:1rem;background:#fff;padding:.5rem}
.wrap{max-width:68rem;margin:0 auto;padding:0 1.25rem}
header{border-bottom:1px solid var(--line);background:#fff}
header .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.5rem;padding:.75rem 1.25rem}
.logo{font-weight:700;font-size:1.25rem;color:var(--ink);text-decoration:none}.logo span{color:var(--accent)}
nav ul{list-style:none;display:flex;flex-wrap:wrap;gap:1rem;margin:0;padding:0}nav a{text-decoration:none;color:var(--ink)}nav a:hover{text-decoration:underline}
.hero{padding:4rem 1.25rem 3rem}.hero h1{font-size:clamp(2.2rem,6vw,3.6rem);line-height:1.1;margin:0 0 1rem}
.hero h1 .wave{color:var(--accent)}.hero p{font-size:1.2rem;max-width:40rem;color:var(--muted)}
.btn{display:inline-block;padding:.7rem 1.1rem;border-radius:6px;background:var(--accent);color:#fff;text-decoration:none;font-weight:600;margin:.25rem .5rem .25rem 0}
.btn.alt{background:#fff;color:var(--accent);border:2px solid var(--accent)}
section{padding:2.5rem 0;border-top:1px solid var(--line)}
.grid{display:grid;gap:1.25rem;grid-template-columns:repeat(auto-fit,minmax(15rem,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:1.25rem}
.card h3{margin-top:0}.label{font-size:.8rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.ref{border-left:6px solid var(--accent)}
.cite{background:#f1efe8;border:1px solid var(--line);border-radius:6px;padding:1rem;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.9rem;overflow-wrap:anywhere}
footer{background:#1b1f24;color:#e8e6e1;padding:2rem 0;margin-top:2rem;font-size:.95rem}footer a{color:#9fd3ff}
article.paper{max-width:44rem;margin:0 auto;overflow-wrap:anywhere}article.paper h2{margin-top:2.5rem}
article.paper img{max-width:100%;height:auto;display:block;margin:1.5rem auto}
article.paper sup{font-size:.7em}
.meta{color:var(--muted);font-family:system-ui,sans-serif;font-size:.95rem}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto}}