.research-page{background:var(--bg);color:var(--ink)}

/* ---- intro ------------------------------------------------------------- */
.research-intro{
  position:relative;isolation:isolate;max-width:var(--maxw);margin:0 auto;
  padding:88px 24px 40px;text-align:center;
}
.research-intro::before{
  content:"";position:absolute;top:0;bottom:0;left:50%;z-index:-2;width:100vw;transform:translateX(-50%);
  background-image:var(--hero-dots);background-size:var(--hero-dot-size);
}
.research-intro::after{
  content:"";position:absolute;top:52%;bottom:0;left:50%;z-index:-1;width:100vw;transform:translateX(-50%);
  background:linear-gradient(transparent,var(--bg) 20%);
}
.research-intro .section-label{margin-bottom:12px}
.research-intro h1{
  max-width:15ch;margin:0 auto;font-family:var(--brand);font-weight:500;
  font-size:clamp(46px,7vw,88px);line-height:.9;letter-spacing:-.04em;text-wrap:balance;
}
.research-intro .lead{
  max-width:56ch;margin:20px auto 0;color:var(--muted);
  font-size:clamp(16px,1.5vw,19px);line-height:1.55;text-wrap:pretty;
}
.research-cite{margin:22px auto 0;display:flex;flex-direction:column;align-items:center;gap:12px}
.research-cite .cite-venue{font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}

/* ---- foveation demo ---------------------------------------------------- */
.fovea{max-width:var(--maxw);margin:0 auto;padding:20px 24px 8px}
.fovea-viewport{
  position:relative;overflow:hidden;border:1px solid var(--line-strong);border-radius:14px;
  background:#0b0b0d;box-shadow:var(--shadow);aspect-ratio:16/9;
}
.fovea-bar{
  position:absolute;z-index:2;top:0;right:0;left:0;height:34px;display:flex;align-items:center;
  justify-content:space-between;gap:16px;padding:0 12px;color:rgba(255,255,255,.72);
  font-family:var(--mono);font-size:10px;letter-spacing:.06em;
  background:linear-gradient(rgba(0,0,0,.42),rgba(0,0,0,0));pointer-events:none;
}
.fovea-live{display:inline-flex;align-items:center;gap:6px;text-transform:uppercase}
.fovea-live::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--rec);box-shadow:0 0 0 0 rgba(255,59,48,.6);animation:fovea-pulse 1.8s var(--ease) infinite}
.fovea-canvas{width:100%;height:100%;display:block;cursor:crosshair;touch-action:none}
.fovea-canvas:focus-visible{outline:3px solid rgba(15,127,255,.55);outline-offset:-3px}
.fovea-hint{
  position:absolute;z-index:2;left:0;right:0;bottom:0;padding:10px 12px;
  color:rgba(255,255,255,.82);font-family:var(--mono);font-size:10px;letter-spacing:.04em;
  background:linear-gradient(rgba(0,0,0,0),rgba(0,0,0,.5));pointer-events:none;
}
.fovea-error .fovea-canvas{display:none}
.fovea-error .fovea-viewport::after{
  content:"scene preview unavailable";position:absolute;inset:0;display:grid;place-items:center;
  color:rgba(255,255,255,.6);font-family:var(--mono);font-size:12px;
}

/* readouts (boxed stat cards) + controls under the viewport */
.fovea-panel{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:24px 40px;
  max-width:var(--maxw);margin:22px auto 0;padding:0 24px;
}
.fovea-stats{flex:1 1 400px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.fovea-stat{
  display:flex;flex-direction:column;gap:5px;padding:13px 15px;
  border:1px solid var(--line);border-radius:12px;
  background:rgba(255,255,255,.66);box-shadow:var(--shadow-small);
}
.fovea-stat b{font-family:var(--disp);font-weight:600;font-size:clamp(24px,2.6vw,30px);letter-spacing:-.03em;line-height:1}
.fovea-stat>span{font-family:var(--mono);font-size:12px;line-height:1.3;letter-spacing:.05em;color:var(--muted)}
.fovea-stat-sub{font-size:11px;color:var(--faint);line-height:1.35}
.fovea-denom{font-size:.55em;font-weight:500;letter-spacing:0;color:var(--muted);white-space:nowrap}
.fovea-stat.is-key b{color:var(--ink)}
.fovea-stat.is-degraded{border-color:rgba(255,59,48,.4);background:rgba(255,59,48,.06)}
.fovea-stat.is-degraded b{color:var(--rec)}
.fovea-controls{display:flex;flex-direction:column;gap:10px;min-width:230px}
.fovea-slider{display:flex;flex-direction:column;gap:6px;font-family:var(--mono);font-size:10px;letter-spacing:.05em;color:var(--muted)}
.fovea-slider input{width:100%;accent-color:var(--blue)}
.fovea-toggle{
  align-self:flex-start;min-height:44px;padding:0 16px;border-radius:999px;cursor:pointer;
  border:1px solid var(--line-strong);background:linear-gradient(#fff,#ececec 48%,#dfdfdf);
  box-shadow:var(--shadow-small),inset 0 1px 0 #fff;font-size:13px;font-weight:500;
  transition:transform .18s var(--ease),filter .18s ease;
}
.fovea-toggle:hover{transform:translateY(-1px);filter:saturate(1.05)}
.fovea-toggle:active{transform:translateY(1px)}

/* ---- narrative bands --------------------------------------------------- */
.research-band{max-width:var(--maxw);margin:0 auto;padding:var(--section-gap) 24px}
.research-band + .research-band{padding-top:0}
.band-eyebrow{margin-bottom:12px}
.research-band h2{
  max-width:20ch;font-family:var(--disp);font-weight:600;font-size:clamp(28px,3.4vw,44px);
  line-height:1.02;letter-spacing:-.035em;text-wrap:balance;
}
.band-lead{max-width:60ch;margin-top:18px;color:var(--muted);font-size:clamp(16px,1.4vw,18px);line-height:1.6;text-wrap:pretty}
.band-lead + .band-lead{margin-top:14px}
.band-lead strong{color:var(--ink);font-weight:600}

/* two-column prose columns for the problem/insight bands */
.band-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px 40px;margin-top:34px}
.band-col h3{font-family:var(--disp);font-weight:600;font-size:17px;letter-spacing:-.01em;line-height:1.25}
.band-col p{margin-top:8px;color:var(--muted);font-size:15px;line-height:1.55;max-width:40ch;text-wrap:pretty}
.band-col .band-num{display:block;font-family:var(--mono);font-size:10px;letter-spacing:.08em;color:var(--faint);margin-bottom:9px}

/* big result stats */
.results-figures{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:26px 30px;margin-top:40px}
.figure b{display:block;font-family:var(--brand);font-weight:500;font-size:clamp(38px,4.4vw,54px);letter-spacing:-.03em;line-height:.92;color:var(--ink);overflow-wrap:break-word}
.figure span{display:block;margin-top:10px;color:var(--muted);font-size:14px;line-height:1.45;max-width:26ch;text-wrap:pretty}

/* the feedback-loop line */
.loop-line{display:flex;flex-wrap:wrap;align-items:center;gap:10px 12px;margin-top:30px;font-family:var(--mono);font-size:12px;letter-spacing:.04em;color:var(--muted)}
.loop-node{padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:var(--paper);color:var(--ink);box-shadow:var(--shadow-small)}
.loop-arrow{color:var(--faint)}
.loop-node.is-accent{border-color:var(--blue);box-shadow:var(--shadow-small),0 0 0 3px rgba(15,127,255,.14)}

/* ---- papers ------------------------------------------------------------ */
.research-papers{max-width:var(--maxw);margin:0 auto;padding:0 24px var(--section-gap)}
.research-papers + .research-band{padding-top:0}
.paper-list{margin-top:30px;border-top:1px solid var(--line)}
.paper{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:16px 28px;align-items:center;padding:24px 0;border-bottom:1px solid var(--line)}
.paper-venue{font-family:var(--mono);font-size:10px;letter-spacing:.08em;color:var(--muted);text-transform:uppercase}
.paper h3{margin-top:8px;font-family:var(--disp);font-weight:600;font-size:clamp(19px,2vw,24px);letter-spacing:-.02em;line-height:1.2}
.paper-authors{margin-top:7px;color:var(--muted);font-size:14px}
.paper .btn{white-space:nowrap}

/* ---- cta --------------------------------------------------------------- */
.research-cta{max-width:var(--maxw);margin:0 auto;padding:0 24px var(--section-gap);text-align:center}
.research-cta h2{font-family:var(--brand);font-weight:500;font-size:clamp(32px,4.4vw,56px);letter-spacing:-.035em;line-height:.96;text-wrap:balance}
.research-cta p{max-width:48ch;margin:16px auto 24px;color:var(--muted);font-size:16px;text-wrap:pretty}
.research-cta .btn{margin:0 6px}

/* Launch video: align the reused About-page block to the research content
   column — override launch.css's narrower 1080px / 44px frame and its dotted
   top divider, and collapse top padding so it stacks like .research-papers. */
.research-page .launch{max-width:var(--maxw);padding:0 24px var(--section-gap);border-top:0}

@keyframes fovea-pulse{0%{box-shadow:0 0 0 0 rgba(255,59,48,.5)}70%{box-shadow:0 0 0 7px rgba(255,59,48,0)}100%{box-shadow:0 0 0 0 rgba(255,59,48,0)}}

/* ---- responsive -------------------------------------------------------- */
@media(max-width:900px){
  .band-cols{grid-template-columns:repeat(2,minmax(0,1fr))}
  .results-figures{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:600px){
  .research-intro{padding-top:64px}
  .fovea-panel{flex-direction:column;align-items:stretch}
  .fovea-controls{min-width:0} /* mobile: pixel-budget slider is the only input */
  .fovea-toggle{display:none} /* no full-frame toggle on mobile */
  .fovea-hint{display:none} /* no pointer/tap prompt on mobile */
  .fovea-stats{flex:none;gap:8px}
  .fovea-denom{display:none} /* narrow cards: drop the /1.28 MB baseline so the value stays one line */
  .fovea-canvas{touch-action:auto} /* allow page scroll over the passive demo */
  .band-cols{grid-template-columns:1fr}
  .results-figures{grid-template-columns:1fr 1fr;gap:24px 20px}
  .paper{grid-template-columns:1fr}
  .fovea-canvas{cursor:default}
}
@media(prefers-reduced-motion:reduce){
  .fovea-live::before{animation:none}
}