*,*:before,*:after{box-sizing:border-box}:root{--azul: #597dda;--azul-oscuro: #3a5cb8;--azul-link: #336699;--gris-claro: #eff4fa;--gris-borde: #ddd;--texto: #333;--texto-suave: #777}html{scroll-behavior:smooth}body{margin:0;font-family:Helvetica Neue,Helvetica,Arial,sans-serif;color:var(--texto);background:#fff;font-size:16px;line-height:1.55}img{max-width:100%;height:auto}a{color:var(--azul-link);text-decoration:none}.container{width:100%;max-width:1140px;margin:0 auto;padding:0 16px}.btn{display:inline-block;padding:8px 18px;border-radius:6px;border:none;font-size:.95rem;cursor:pointer;transition:background .2s ease}.btn-primary{background:var(--azul);color:#fff}.btn-primary:hover{background:var(--azul-oscuro)}.site-header{background:#fff;border-bottom:1px solid var(--gris-borde)}.logo-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 0 10px}.logo-bar .logo-main img{height:48px;width:auto}.logo-bar .logo-stm img{height:30px;width:auto}.main-nav{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;padding:6px 0 12px}.nav-item{position:relative}.nav-item>a,.nav-item>button{display:inline-block;background:none;border:none;font:inherit;color:var(--texto);padding:8px 14px;cursor:pointer}.nav-item>a:hover,.nav-item>button:hover{color:var(--azul)}.nav-item .caret{font-size:.7em;margin-left:4px}.dropdown{display:none;position:absolute;top:100%;left:0;min-width:240px;background:#fff;border:1px solid var(--gris-borde);border-radius:6px;box-shadow:0 8px 22px #0000001f;padding:6px 0;z-index:60;list-style:none;margin:0}.nav-item.open .dropdown{display:block}.dropdown a{display:block;padding:8px 16px;color:var(--texto);white-space:nowrap}.dropdown a:hover{background:var(--gris-claro);color:var(--azul)}.hero-carousel{position:relative;overflow:hidden;background:var(--gris-claro)}.hero-carousel .slide{display:none;width:100%}.hero-carousel .slide.active{display:block;animation:fadeIn .9s ease}.hero-carousel .slide img{width:100%;display:block}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.hero-dots{position:absolute;bottom:14px;left:0;right:0;display:flex;justify-content:center;gap:8px;z-index:5}.hero-dots button{width:11px;height:11px;border-radius:50%;border:none;background:#ffffffa6;cursor:pointer;padding:0}.hero-dots button.active{background:var(--azul)}.welcome{padding:34px 0 20px}.welcome h1{font-weight:300;font-size:2.1rem;border-bottom:1px solid var(--gris-borde);padding-bottom:10px;margin:0 0 22px}.welcome-grid{display:grid;grid-template-columns:1fr 320px;gap:30px;align-items:start}.login-box{background:var(--gris-claro);border:1px solid var(--gris-borde);border-radius:8px;padding:20px}.login-box label{display:block;font-size:.9rem;margin-bottom:4px}.login-box input{width:100%;padding:8px 10px;margin-bottom:12px;border:1px solid var(--gris-borde);border-radius:5px;font:inherit}.login-box .login-links{font-size:.85rem;margin-top:12px}.edu-band{display:flex;justify-content:center;align-items:center;gap:26px;flex-wrap:wrap;margin:40px 0 50px}.edu-band img{height:40px;width:auto}.cotizador-flotante{position:fixed;right:16px;bottom:110px;z-index:90;text-align:center}.cotizador-flotante img{width:92px;height:auto;display:block;margin:0 auto;cursor:pointer;filter:drop-shadow(0 4px 10px rgba(0,0,0,.25))}.cotizador-flotante .etiqueta{display:none;margin-top:6px}.cotizador-flotante:hover .etiqueta{display:inline-block}.modal-overlay{display:none;position:fixed;inset:0;background:#0000008c;z-index:200;align-items:center;justify-content:center;padding:18px}.modal-overlay.open{display:flex}.modal-card{background:#fff;border-radius:10px;max-width:880px;width:100%;max-height:90vh;overflow:auto;padding:22px;position:relative;box-shadow:0 20px 60px #00000059}.modal-card .cerrar{position:absolute;top:10px;right:14px;font-size:1.3rem;font-weight:700;color:var(--texto-suave);background:none;border:none;cursor:pointer}.modal-card h2{font-weight:300;margin-top:0}.modal-card .acciones{display:flex;justify-content:flex-end;gap:12px;flex-wrap:wrap;margin-top:18px}.site-footer{background:var(--gris-claro);border-top:1px solid var(--gris-borde);margin-top:30px;padding:26px 0 40px;font-size:.82rem;color:var(--texto-suave)}.site-footer .marcas{text-align:center;margin-bottom:22px}.site-footer .marcas img{max-width:320px}.site-footer p{margin:0 0 12px;text-align:justify}.footer-links{display:flex;flex-wrap:wrap;gap:6px 18px;margin:14px 0}@media (max-width: 860px){.welcome-grid{grid-template-columns:1fr}.logo-bar .logo-main img{height:36px}.logo-bar .logo-stm img{height:22px}.main-nav{gap:0}.cotizador-flotante img{width:70px}}