:root{
  --indigo:#413c97;
  --indigo-dark:#2f2b73;
  --teal:#66cbc4;
  --teal-text:#1c8a86;
  --teal-soft:#e6f6f6;
  --ink:#2a2a3d;
  --muted:#5f6178;
  --line:#dfe1ec;
  --bg:#ffffff;
  --bg-alt:#f6f7fb;
  --radius:10px;
  --maxw:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Raleway',system-ui,-apple-system,'Segoe UI',sans-serif;color:var(--ink);background:var(--bg);line-height:1.65;font-size:17px}
h1,h2,h3{font-family:'Montserrat',system-ui,sans-serif;color:var(--indigo);line-height:1.2;margin:0 0 .6em}
h1{font-size:clamp(2rem,4.6vw,3.2rem);font-weight:800}
h2{font-size:clamp(1.5rem,3vw,2.1rem);font-weight:700}
h3{font-size:1.1rem;font-weight:700}
p{margin:0 0 1em}
a{color:var(--indigo)}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}

/* language switch */
html[data-lang="es"] .en{display:none !important}
html[data-lang="en"] .es{display:none !important}

/* header */
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(6px)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand img{height:46px;width:auto;display:block}
.brand span{font-family:'Montserrat',sans-serif;font-weight:800;font-size:1.45rem;color:var(--indigo);letter-spacing:-.01em}
.nav ul{display:flex;gap:22px;list-style:none;margin:0;padding:0}
.nav ul a{text-decoration:none;color:var(--ink);font-weight:600;font-size:.95rem}
.nav ul a:hover{color:var(--indigo)}
.lang{display:flex;border:1px solid var(--line);border-radius:999px;overflow:hidden}
.lang button{border:0;background:transparent;padding:6px 12px;font:600 .82rem 'Montserrat',sans-serif;color:var(--muted);cursor:pointer}
.lang button[aria-pressed="true"]{background:var(--indigo);color:#fff}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:6px 10px;font-size:1.1rem;cursor:pointer;color:var(--indigo)}

/* hero */
.hero{background:linear-gradient(180deg,#f3fafa 0%,#fff 100%);padding:72px 0 56px}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.eyebrow{font:600 .8rem 'Montserrat',sans-serif;letter-spacing:.18em;text-transform:uppercase;color:var(--teal-text);margin-bottom:14px;display:block}
.hero h1 .accent{color:var(--teal-text)}
.hero p.lead{font-size:1.15rem;color:var(--muted);max-width:34em}
.btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.btn{display:inline-block;padding:13px 24px;border-radius:999px;font:700 .95rem 'Montserrat',sans-serif;text-decoration:none;border:2px solid var(--indigo);cursor:pointer}
.btn-primary{background:var(--indigo);color:#fff}
.btn-primary:hover{background:var(--indigo-dark);border-color:var(--indigo-dark)}
.btn-ghost{background:transparent;color:var(--indigo)}
.btn-ghost:hover{background:var(--teal-soft)}
.hero-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:28px;box-shadow:0 18px 40px -24px rgba(69,67,154,.35)}
.hero-card ul{list-style:none;margin:0;padding:0}
.hero-card li{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--line)}
.hero-card li:last-child{border-bottom:0}
.dot{flex:none;width:12px;height:12px;border-radius:50%;background:var(--teal);margin-top:8px}
.hero-card strong{display:block;font-family:'Montserrat',sans-serif;color:var(--indigo);font-size:.95rem;letter-spacing:.06em;text-transform:uppercase}
.hero-card span.t{color:var(--muted);font-size:.95rem}

/* sections */
section{padding:72px 0}
.alt{background:var(--bg-alt)}
.section-head{max-width:46em;margin-bottom:34px}
.section-head p{color:var(--muted)}
.grid{display:grid;gap:20px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.alt .card{background:#fff}
.card h3{margin-bottom:.4em}
.card p{color:var(--muted);margin:0;font-size:.97rem}
.stat{font:800 2.4rem 'Montserrat',sans-serif;color:var(--teal-text);line-height:1}

/* labs */
.lab{border:1px solid var(--line);border-radius:var(--radius);background:#fff;overflow:hidden}
.lab header{padding:16px 20px;background:var(--teal-soft);border-bottom:1px solid var(--line)}
.lab header h3{margin:0;font-size:1.05rem}
.lab header small{color:var(--muted);font-size:.85rem}
.lab ul{list-style:none;margin:0;padding:14px 20px 18px}
.lab li{padding:7px 0;border-bottom:1px dashed var(--line);font-size:.95rem}
.lab li:last-child{border-bottom:0}
.lab li b{font-family:'Montserrat',sans-serif;color:var(--indigo);font-weight:700}
.lab li i{color:var(--muted);font-style:normal}
.notice{margin-top:26px;padding:16px 20px;border-left:4px solid var(--teal);background:#fff;border-radius:6px;color:var(--muted);font-size:.93rem}

/* process */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(3,1fr);gap:20px;list-style:none;padding:0;margin:0}
.steps li{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 24px 22px 24px}
.steps li::before{counter-increment:s;content:counter(s);display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:var(--teal);color:#fff;font:700 1rem 'Montserrat',sans-serif;margin-bottom:12px}
.steps h3{margin-bottom:.3em}
.steps p{margin:0;color:var(--muted);font-size:.95rem}

/* faq */
details{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px 20px;margin-bottom:12px}
summary{cursor:pointer;font:700 1rem 'Montserrat',sans-serif;color:var(--indigo)}
details p{margin:12px 0 0;color:var(--muted)}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:40px}
.contact-list{list-style:none;padding:0;margin:0}
.contact-list li{padding:10px 0;border-bottom:1px solid var(--line)}
.contact-list b{display:block;font:600 .78rem 'Montserrat',sans-serif;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
form{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px}
label{display:block;font:600 .88rem 'Montserrat',sans-serif;margin-bottom:6px;color:var(--ink)}
input,textarea,select{width:100%;padding:11px 13px;border:1px solid #c8cbdc;border-radius:8px;font:inherit;margin-bottom:16px;background:#fff}
input:focus,textarea:focus,select:focus,button:focus-visible,a:focus-visible{outline:3px solid rgba(90,198,201,.55);outline-offset:1px}
textarea{min-height:120px;resize:vertical}
.check{display:flex;gap:10px;align-items:flex-start;margin-bottom:16px;font-size:.9rem;color:var(--muted)}
.check input{width:auto;margin:5px 0 0}
.hp{position:absolute;left:-9999px}

/* footer */
footer{background:var(--indigo-dark);color:#d9d9ef;padding:44px 0 28px;font-size:.92rem}
footer a{color:#fff}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:30px}
footer h4{font-family:'Montserrat',sans-serif;color:#fff;margin:0 0 10px;font-size:.95rem}
.legal{border-top:1px solid rgba(255,255,255,.18);margin-top:28px;padding-top:18px;font-size:.84rem;color:#b9b9d8}

/* legal page */
.legal-page{padding:56px 0 72px}
.legal-page .wrap{max-width:820px}
.legal-page h2{margin-top:1.8em;font-size:1.3rem}
.legal-page ul{padding-left:1.2em}
.legal-page li{margin-bottom:.4em}
.updated{color:var(--muted);font-size:.92rem}

@media (max-width:900px){
  .hero-grid,.contact-grid,.foot-grid{grid-template-columns:1fr}
  .g3,.steps{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  body{font-size:16px}
  .menu-btn{display:block}
  .nav ul{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;gap:0;padding:8px 20px 16px;border-bottom:1px solid var(--line)}
  .nav ul.open{display:flex}
  .nav ul li{padding:10px 0;border-bottom:1px solid var(--line)}
  .g3,.g2,.steps{grid-template-columns:1fr}
  section{padding:52px 0}
  .hero{padding:48px 0 40px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* laboratorios (solo nombres) */
.lab-names{list-style:none;margin:0 0 28px;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.lab-names li{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 12px;text-align:center;font:700 .98rem 'Montserrat',sans-serif;color:var(--indigo)}

/* equipo */
.team-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:center}
figure{margin:0}
.team-photo img,.team-wide img{display:block;width:100%;height:auto;border-radius:14px}
figcaption{margin-top:10px;font-size:.88rem;color:var(--muted)}
.team-wide{margin-top:22px}
@media (max-width:900px){.lab-names{grid-template-columns:repeat(3,1fr)}.team-grid{grid-template-columns:1fr}}
@media (max-width:520px){.lab-names{grid-template-columns:repeat(2,1fr)}}

/* pagina equipo */
.team-grid{align-items:start}
.team-grid .team-wide{align-self:center}