/* Revivis Bio — restrained lab aesthetic. Not a hipaastudio / gridscout / warmopt clone. */
:root{
  --paper:#f4f7f8;
  --ink:#161a1e;
  --muted:#5a656c;
  --line:#d3dce0;
  --card:#ffffff;
  --accent:#147a7c;
  --accent-ink:#0d5456;
  --accent-soft:#dceeee;
  --warn:#6b5a3e;
  --serif:"Palatino Linotype", Palatino, "Book Antiqua", "Iowan Old Style", Georgia, serif;
  --sans:"Avenir Next", "Segoe UI", system-ui, -apple-system, sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
html,body{background:var(--paper);color:var(--ink);font-family:var(--sans);line-height:1.55}
body{min-height:100vh}
a{color:var(--accent-ink);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--accent)}
.wrap{width:min(1080px, calc(100% - 40px));margin:0 auto}
header.top{display:flex;align-items:center;justify-content:space-between;padding:22px 0 18px;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;color:inherit;text-decoration:none;font-weight:700;letter-spacing:.01em}
.brand svg{display:block}
.brand em{font-style:normal;font-weight:600;color:var(--accent)}
.nav{display:flex;gap:22px;font-size:.88rem}
.nav a{color:var(--muted);text-decoration:none;font-weight:600}
.nav a:hover{color:var(--ink)}
.eyebrow{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;font-weight:700;color:var(--accent);margin-bottom:14px}
h1,h2,h3{font-family:var(--serif);font-weight:600;letter-spacing:-.02em;line-height:1.12}
h1{font-size:clamp(2.15rem, 5.2vw, 3.35rem);margin-bottom:.35em}
.subhead{font-family:var(--serif);font-size:clamp(1.2rem, 2.6vw, 1.65rem);color:var(--accent-ink);font-weight:600;margin-bottom:18px}
.lead{color:var(--muted);font-size:1.05rem;max-width:46ch}
.hero{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding:56px 0 28px}
.hero-visual{background:linear-gradient(180deg,#fff, #f2f7f7);border:1px solid var(--line);border-radius:4px;padding:18px 16px 12px;box-shadow:0 18px 40px rgba(22,26,30,.05)}
.hero-visual figcaption{font-size:.72rem;color:var(--muted);margin-top:8px;letter-spacing:.02em}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.btn{display:inline-flex;align-items:center;justify-content:center;background:var(--accent);color:#fff;font-weight:700;border:0;border-radius:2px;padding:12px 18px;cursor:pointer;font:inherit;text-decoration:none}
.btn:hover{background:var(--accent-ink);color:#fff}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--line);padding:11px 16px;text-decoration:none;font-weight:600}
section{padding:28px 0 8px}
h2{font-size:clamp(1.4rem, 2.4vw, 1.85rem);margin-bottom:8px}
.section-kicker{font-size:.78rem;color:var(--muted);margin-bottom:20px;max-width:62ch}
.thesis{display:grid;gap:0;border-top:1px solid var(--line)}
.thesis li{list-style:none;display:grid;grid-template-columns:7.5rem 1fr;gap:18px;padding:16px 0;border-bottom:1px solid var(--line)}
.thesis .k{font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;font-weight:700;color:var(--accent);padding-top:3px}
.thesis p{color:var(--ink);font-size:.98rem;max-width:62ch}
.loop{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:10px}
.card{background:var(--card);border:1px solid var(--line);border-radius:4px;padding:18px 16px 16px}
.card .n{font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);font-weight:700;margin-bottom:8px}
.card h3{font-size:1.15rem;margin-bottom:8px}
.card p{color:var(--muted);font-size:.92rem}
form.wait{background:var(--card);border:1px solid var(--line);border-radius:4px;padding:22px;margin-top:12px;max-width:560px}
.field{margin-bottom:12px}
.field label{display:block;font-size:.78rem;font-weight:700;color:var(--muted);margin-bottom:5px}
.field input,.field textarea{width:100%;border:1px solid var(--line);background:#fff;color:var(--ink);padding:10px 11px;font:inherit;border-radius:2px}
.field textarea{min-height:88px;resize:vertical}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.caveats{margin-top:14px;font-size:.8rem;color:var(--muted);max-width:58ch}
.caveats strong{color:var(--ink);font-weight:600}
footer{border-top:1px solid var(--line);margin-top:48px;padding:22px 0 40px;color:var(--muted);font-size:.8rem;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.ok{background:#e8f5ef;border:1px solid #b7ddd0;color:#1c4a3a;padding:14px 16px;border-radius:4px;margin:28px 0}
.err{background:#f8ecec;border:1px solid #e3c4c4;color:#6b2a2a;padding:10px 12px;border-radius:4px;margin-bottom:12px}
@media(max-width:860px){
  .hero,.loop{grid-template-columns:1fr}
  .thesis li{grid-template-columns:1fr;gap:4px}
  .nav{display:none}
  .hero{padding-top:32px}
}