*{box-sizing:border-box}
:root{
  --primary:#f1c40f; /* amarillo del logotipo */
  --secondary:#1565c0; /* azul académico */
  --accent:#2ecc71; /* verde para CTAs secundarios */
  --ink:#15202b;
  --muted:#6b7b8c;
  --bg:#ffffff;
  --bg-alt:#f6f8fb;
  --radius:16px;
  --shadow:0 10px 25px rgba(0,0,0,.08);
}
html,body{margin:0;font-family:Poppins,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg)}
.container{width:min(1200px,92%);margin:auto}
.topbar{position:sticky;top:0;background:#fff;border-bottom:1px solid #eee;z-index:50}
.topbar .container{display:flex;align-items:center;justify-content:space-between;padding:.6rem 0;gap:1rem}
.brand{display:flex;align-items:center;gap:.6rem}
.logo{width:40px;height:40px;border-radius:50%;object-fit:cover}
.brand-text{display:flex;flex-direction:column;font-size:.9rem}
.brand-text strong{line-height:1}
.nav{display:flex;gap:1rem;align-items:center}
.nav a{color:var(--ink);text-decoration:none;font-weight:600}
.nav .btn{margin-left:.25rem}
.menu-toggle{display:none;background:none;border:0;font-size:1.5rem}
.ribbon{background:linear-gradient(90deg,#ffdf5d,#ffd400);display:flex;gap:1rem;justify-content:center;font-weight:700;padding:.35rem 0;color:#222}
.ribbon span{display:inline-block}
/* Buttons */
.btn{display:inline-flex;align-items:center;gap:.5rem;border:2px solid var(--ink);padding:.7rem 1rem;border-radius:999px;font-weight:700;text-decoration:none;transition:.2s;cursor:pointer}
.btn:hover{transform:translateY(-1px)}
.btn.primary{background:var(--secondary);border-color:var(--secondary);color:white}
.btn.outline{border-color:var(--secondary);color:var(--secondary);background:transparent}
/* Hero */
.hero{position:relative;height:72vh;min-height:420px;overflow:hidden;background:#111;color:#fff}
.slides{position:absolute;inset:0;display:grid}
.slide{grid-area:1/1;background-size:cover;background-position:center;opacity:0;animation:fade 21s infinite}
.slide:nth-child(1){animation-delay:0s}
.slide:nth-child(2){animation-delay:7s}
.slide:nth-child(3){animation-delay:14s}
@keyframes fade{0%{opacity:0}5%,30%{opacity:1;transform:scale(1.03)}35%,100%{opacity:0}}
.hero-content{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:center;gap:1rem}
.hero h1{font-size:clamp(1.8rem,3vw,3rem);max-width:850px}
.cta-group{display:flex;gap:.75rem;flex-wrap:wrap}
/* Sections */
.section{padding:64px 0}
.section.alt{background:var(--bg-alt)}
.section h2{font-size:clamp(1.6rem,2.2vw,2.2rem);margin:0 0 1rem}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.card{background:#fff;border-radius:var(--radius);padding:1rem;box-shadow:var(--shadow);border:1px solid #eee}
.card h3{margin:.2rem 0 0.8rem}
.card ul{margin:0;padding-left:1.1rem;line-height:1.8}
.grid-2{display:grid;grid-template-columns:1.1fr 1fr;gap:2rem;align-items:center}
.bullets{padding-left:1.1rem;line-height:1.9}
.video-wrapper{position:relative;padding-top:56%;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.video-wrapper iframe{position:absolute;inset:0;width:100%;height:100%}
/* Social/IG */
.ig-card{background:#fff;border:1px solid #eee;border-radius:var(--radius);padding:1rem;box-shadow:var(--shadow)}
.promo-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:.5rem;margin-top:1rem}
.promo-grid img{width:100%;height:170px;object-fit:cover;border-radius:12px}
/* Gallery */
.gallery{display:grid;grid-template-columns:repeat(5,1fr);gap:.5rem}
.gallery img{width:100%;height:180px;object-fit:cover;border-radius:10px;transition:.2s}
.gallery img:hover{transform:scale(1.02)}
/* Map */
.map-wrapper{position:relative;padding-top:55%;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.map-wrapper iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
/* Contact */
.contact-form{background:#fff;border:1px solid #eee;border-radius:var(--radius);padding:1rem;display:grid;gap:.75rem;box-shadow:var(--shadow)}
.contact-form label{font-weight:600;font-size:.9rem;display:grid;gap:.35rem}
.contact-form input,.contact-form select,.contact-form textarea{padding:.7rem;border:1px solid #d9e1ec;border-radius:10px;font-family:inherit}
.form-note{color:var(--muted)}
/* WhatsApp floating */
.wa-float{position:fixed;right:18px;bottom:18px;background:#25D366;color:#fff;display:flex;align-items:center;gap:.55rem;padding:.7rem 1rem;border-radius:999px;box-shadow:var(--shadow);text-decoration:none;font-weight:700;z-index:60}
/* Footer */
.footer{background:#0f172a;color:#e2e8f0;padding:28px 0;margin-top:24px}
.footer a{color:#f1c40f;text-decoration:none}
/* Responsive */
@media (max-width:1000px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .grid-2{grid-template-columns:1fr}
  .gallery{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:720px){
  .nav{display:none}
  .menu-toggle{display:block}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .promo-grid img{height:140px}
}