/* Shared styles for the inner pages (Research, Tools, Contact, project landing). Matches the home page. */
:root{
  --paper:#f7f4ed;
  --ink:#10201c;
  --muted:#4d5f59;
  --line:#ddd7ca;
  --accent:#1f6f66;
  --accent-soft:#e0ebe3;
  --card:rgba(255,255,255,.5);
  --serif:"Newsreader","Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;
  --sans:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;
  --pad:max(24px,3vw);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:70px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.62;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
a:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:3px}

/* top bar */
.top{position:sticky;top:0;z-index:20;background:rgba(247,244,237,.88);backdrop-filter:saturate(160%) blur(8px);border-bottom:1px solid var(--line)}
.top .in{display:flex;align-items:center;gap:22px;height:56px;padding:0 var(--pad);overflow:hidden}
.top .brand{font:700 16px var(--serif);letter-spacing:.04em;margin-right:auto;color:var(--ink)}
.top a{font-size:14.5px;font-weight:500;color:var(--muted);white-space:nowrap}
.top a:hover,.top a.on{color:var(--accent);text-decoration:none}
.top a .sm{display:none}

/* layout: left-aligned column, as on the home page */
.wrap{max-width:calc(780px + 2*var(--pad));margin:0;padding:0 var(--pad)}
.page-head{padding:9vh 0 2vh}
.kicker{font:500 12.5px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin:0 0 12px}
h1,h2,h3{font-family:var(--serif);font-weight:600;letter-spacing:-.01em;line-height:1.1;margin:0}
h1{font-size:clamp(2.2rem,4.4vw,3.2rem);margin-bottom:14px}
h2{font-size:clamp(1.7rem,3vw,2.15rem);margin-bottom:20px}
h2::after{content:"."}
h3{font-size:1.28rem;line-height:1.2}
p{margin:0 0 16px}
.sub{font:italic 400 clamp(1.1rem,2vw,1.3rem)/1.4 var(--serif);color:var(--ink);margin:0 0 8px;max-width:640px}
section{padding:7vh 0 6vh;border-top:1px solid var(--line)}
.page-head + main section:first-child{border-top:0}
.note{font-size:14.5px;color:var(--muted)}

/* cards */
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:22px 24px;margin-bottom:18px}
.card h3{margin:0 0 4px}
.card h3 a{color:var(--ink)}
.card h3 a:hover{color:var(--accent);text-decoration:none}
.card .subtitle{font:500 12px var(--mono);letter-spacing:.07em;text-transform:uppercase;color:var(--accent);margin:0 0 10px}
.card .meta{color:var(--muted);font-size:14.5px;margin:0 0 10px}
.card p:last-child{margin-bottom:0}
.card ul{margin:10px 0 0;padding-left:20px}
.card li{margin-bottom:6px}
.card.secondary{background:transparent;border-style:dashed}
.card.secondary .subtitle{color:var(--muted)}
.keypaper{margin-top:14px;padding-top:12px;border-top:1px dashed var(--line);font-size:14.5px;color:var(--muted)}
.keypaper strong{color:var(--ink)}
.tag{display:inline-block;font:500 11.5px var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--accent);background:var(--accent-soft);padding:2px 9px;border-radius:5px;margin-bottom:10px}

/* publications */
.pub{padding:16px 0;border-top:1px solid var(--line)}
.pub:first-of-type{border-top:0;padding-top:0}
.pub .title{font:600 1.1rem/1.3 var(--serif)}
.pub .cite{color:var(--muted);font-size:14.5px}
.pub .cite strong,.keypaper strong{color:var(--ink);font-weight:700}
.pub .venue{font-style:italic}

/* contact + links */
.social{display:flex;gap:8px 20px;flex-wrap:wrap;margin-top:22px;font:500 13px var(--mono);letter-spacing:.08em;text-transform:uppercase}
.social a{color:var(--ink)}
.social a:hover{color:var(--accent);text-decoration:none}
.btn{display:inline-block;padding:9px 18px;font-weight:600;font-size:15px;color:#fff;background:var(--accent);border-radius:8px}
.btn:hover{text-decoration:none;opacity:.9}

/* project landing */
.stats{display:flex;gap:12px;flex-wrap:wrap;margin:18px 0 6px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:8px 14px;font-size:14px;color:var(--muted)}
.stat strong{display:block;font:600 1.4rem/1.2 var(--serif);color:var(--ink)}
.jump{display:flex;gap:8px 18px;flex-wrap:wrap;margin:22px 0 0;font-size:14.5px}
.jump .lbl{font:500 12px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.jump a{font-weight:500}
.interest-list{list-style:none;padding:0;margin:0}
.interest-list li{padding:12px 0;border-bottom:1px solid var(--line)}
.interest-list li:last-child{border-bottom:0}
.interest-list span{color:var(--muted);display:block;font-size:14.5px}

footer{padding:34px var(--pad) 56px;color:var(--muted);font-size:13.5px;border-top:1px solid var(--line)}

@media (max-width:900px){.top a.hide-sm{display:none}}
@media (max-width:560px){
  body{font-size:16.5px}
  .top .in{gap:15px}
  .top a{font-size:14px}
  .top a .lg{display:none}
  .top a .sm{display:inline}
  .card{padding:18px 18px}
}
@media (max-width:400px){.top .in{gap:11px;padding:0 16px}.top a{font-size:13px}.top .brand{font-size:15px}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}