/* ============================================================
   AUVUM BIO — Research library
   Layered on auvumbio.css. This page is a working reference,
   not a brochure: dense, scannable, monospace for identifiers,
   and every row traceable to a source the reader can open.
   ============================================================ */

/* ── page head ─────────────────────────────────────────────── */
.rs-hero{padding:clamp(104px,12vw,150px) 0 clamp(40px,5vw,60px);background:var(--bg-warm);
  border-bottom:1px solid var(--border-soft)}
.rs-hero h1{font-family:var(--display);font-weight:400;letter-spacing:-.022em;
  font-size:clamp(38px,6vw,68px);line-height:1.05;text-wrap:balance;margin-bottom:20px}
.rs-hero h1 em{font-style:italic;color:var(--teal-deep)}
.rs-lede{font-size:clamp(17px,1.7vw,20px);line-height:1.6;color:var(--ink-soft);max-width:64ch}
.rs-note{margin-top:26px;padding:15px 18px;background:#fff;border:1px solid var(--border);
  border-left:3px solid var(--gold);border-radius:0 6px 6px 0;font-size:14.5px;
  line-height:1.55;color:var(--ink-soft);max-width:78ch}
.rs-note strong{color:var(--ink2)}

/* ── the three highlighted classes ─────────────────────────── */
.rs-feat{padding:clamp(48px,6vw,76px) 0 clamp(30px,4vw,44px)}
.rs-feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:30px}
.rs-card{position:relative;background:#fff;border:1px solid var(--border);border-radius:14px;
  padding:28px 26px 26px;box-shadow:var(--sh2);display:flex;flex-direction:column;gap:13px;
  text-align:left;cursor:pointer;font:inherit;color:inherit;
  transition:transform .2s cubic-bezier(.22,1,.36,1),box-shadow .2s,border-color .2s}
.rs-card:hover{transform:translateY(-3px);box-shadow:var(--sh3);border-color:var(--border2)}
.rs-card::before{content:"";position:absolute;inset:0 0 auto;height:3px;border-radius:14px 14px 0 0}
.rs-card[data-k="rpe"]::before{background:linear-gradient(90deg,var(--gold),var(--gold2))}
.rs-card[data-k="neural"]::before{background:linear-gradient(90deg,var(--plasma),#8a6ef0)}
.rs-card[data-k="msc"]::before{background:linear-gradient(90deg,var(--teal),var(--blue))}
.rs-card .k{font-family:var(--mono);font-size:10.5px;letter-spacing:.15em;text-transform:uppercase;
  color:var(--ink-mute)}
.rs-card h3{font-family:var(--display);font-weight:500;font-size:22px;line-height:1.22;
  letter-spacing:-.01em}
.rs-card p{font-size:14.5px;line-height:1.58;color:var(--ink-soft)}
.rs-card .n{margin-top:auto;padding-top:12px;border-top:1px solid var(--border-soft);
  font-family:var(--mono);font-size:12px;color:var(--teal-deep);font-weight:500;
  display:flex;align-items:center;gap:7px}
.rs-card .n::after{content:"→";transition:transform .18s}
.rs-card:hover .n::after{transform:translateX(3px)}

/* ── search + filters ──────────────────────────────────────── */
.rs-tools{position:sticky;top:var(--hdr-h,64px);z-index:30;background:rgba(255,255,255,.93);
  backdrop-filter:saturate(140%) blur(12px);-webkit-backdrop-filter:saturate(140%) blur(12px);
  border-block:1px solid var(--border-soft);padding:16px 0}
.rs-search{position:relative;display:flex;align-items:center;gap:12px}
.rs-search svg{position:absolute;left:16px;width:19px;height:19px;color:var(--ink-mute);
  pointer-events:none}
.rs-search input{flex:1;font:inherit;font-size:16px;padding:15px 16px 15px 46px;
  border:1.5px solid var(--border2);border-radius:11px;background:#fff;color:var(--ink);
  transition:border-color .16s,box-shadow .16s}
.rs-search input::placeholder{color:var(--ink-mute)}
.rs-search input:focus{outline:none;border-color:var(--teal);
  box-shadow:0 0 0 4px var(--teal-soft)}
.rs-clear{border:0;background:var(--bg3);color:var(--ink-soft);font:inherit;font-size:14px;
  padding:11px 16px;border-radius:9px;cursor:pointer;white-space:nowrap}
.rs-clear:hover{background:var(--border);color:var(--ink)}

.rs-filters{display:flex;flex-wrap:wrap;gap:8px;margin-top:13px;align-items:center}
.rs-fgroup{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.rs-flabel{font-family:var(--mono);font-size:10px;letter-spacing:.13em;text-transform:uppercase;
  color:var(--ink-mute);margin-right:3px}
.rs-chip{font:inherit;font-size:13px;padding:7px 13px;border:1px solid var(--border2);
  background:#fff;color:var(--ink-soft);border-radius:999px;cursor:pointer;
  transition:.15s;white-space:nowrap;min-height:36px}
.rs-chip:hover{border-color:var(--ink-mute);color:var(--ink)}
.rs-chip[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:#fff;font-weight:500}

.rs-count{font-family:var(--mono);font-size:12.5px;color:var(--ink-mute);
  padding:14px 0 0}
.rs-count b{color:var(--ink);font-weight:600}

/* ── results ───────────────────────────────────────────────── */
.rs-results{padding:8px 0 clamp(70px,9vw,120px)}
.rs-list{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--border)}
.rs-row{display:grid;grid-template-columns:1fr auto;gap:6px 24px;align-items:start;
  padding:20px 4px;border-bottom:1px solid var(--border-soft);
  transition:background .14s}
.rs-row:hover{background:var(--bg2)}
.rs-main{min-width:0}
.rs-bio{font-family:var(--display);font-size:18.5px;font-weight:500;line-height:1.3;
  color:var(--ink);letter-spacing:-.008em}
.rs-ind{font-size:15px;color:var(--ink3);margin-top:3px}
.rs-find{font-size:14.5px;line-height:1.55;color:var(--ink-soft);margin-top:8px;max-width:82ch}
.rs-meta{display:flex;flex-wrap:wrap;gap:7px;margin-top:11px;align-items:center}
.rs-tag{font-family:var(--mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;
  padding:4px 9px;border-radius:5px;background:var(--bg3);color:var(--ink-soft);
  border:1px solid var(--border-soft);white-space:nowrap}
.rs-tag.stage{background:var(--bg-warm);border-color:#eadfc9;color:var(--gold2)}
.rs-tag.stage[data-s="registered_trial"]{background:var(--blue-soft);border-color:#d3ddf7;color:var(--blue2)}
.rs-tag.stage[data-s="early_human"]{background:var(--teal-soft);border-color:#c9ece4;color:var(--teal-deep)}
.rs-tag.cls{background:var(--plasma-soft);border-color:#ddd4f7;color:#4b34ad}
.rs-src{justify-self:end;text-align:right;display:flex;flex-direction:column;gap:5px;
  align-items:flex-end}
.rs-link{font-family:var(--mono);font-size:12px;color:var(--teal-deep);text-decoration:none;
  border:1px solid var(--border2);border-radius:7px;padding:8px 12px;white-space:nowrap;
  transition:.15s;min-height:36px;display:inline-flex;align-items:center}
.rs-link:hover{border-color:var(--teal);background:var(--teal-soft)}
.rs-year{font-family:var(--mono);font-size:11.5px;color:var(--ink-mute)}

.rs-empty{padding:64px 20px;text-align:center;color:var(--ink-soft)}
.rs-empty h3{font-family:var(--display);font-size:22px;font-weight:500;margin-bottom:10px;color:var(--ink)}
.rs-more{display:block;margin:28px auto 0;font:inherit;font-size:15px;font-weight:500;
  padding:14px 30px;border:1.5px solid var(--border2);background:#fff;color:var(--ink);
  border-radius:10px;cursor:pointer;transition:.15s}
.rs-more:hover{border-color:var(--ink);background:var(--bg2)}

/* ── phone ─────────────────────────────────────────────────── */
@media(max-width:900px){
  .rs-feat-grid{grid-template-columns:1fr}
}
@media(max-width:760px){
  .rs-tools{position:static;backdrop-filter:none;-webkit-backdrop-filter:none;
    background:var(--bg)}
  .rs-search{flex-wrap:wrap}
  .rs-search input{font-size:16px;padding:14px 14px 14px 44px}   /* 16px: stops iOS zoom-on-focus */
  .rs-clear{width:100%}
  .rs-filters{gap:7px}
  .rs-fgroup{width:100%}
  .rs-chip{min-height:40px;font-size:13.5px}
  .rs-row{grid-template-columns:1fr;gap:10px}
  .rs-src{justify-self:start;text-align:left;flex-direction:row;align-items:center;gap:10px}
  .rs-link{min-height:42px}
  .rs-find{max-width:none}
}

@media(prefers-reduced-motion:reduce){
  .rs-card{transition:none}
  .rs-card:hover{transform:none}
}