:root{--ink:#101826;--navy:#14233b;--blue:#315efb;--sky:#dce8ff;--lime:#c8ff4d;--warm:#f7f4ed;--white:#fff;--muted:#5d6878;--line:#d8dde7;--coral:#ff715b;--radius:24px;--max:1240px;--shadow:0 22px 60px rgba(21,36,62,.12)}
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36px),var(--max));margin:1rem auto 6rem;background:var(--blue);color:#fff;border-radius:30px;padding:clamp(2rem,5vw,4rem);display:grid;grid-template-columns:1.2fr .8fr;gap:2rem;align-items:center;box-shadow:0 30px 80px rgba(49,94,251,.25)}.cta-band .eyebrow{color:var(--lime)}.cta-band h2{font-size:clamp(2rem,4vw,3.4rem);margin:.6rem 0}.cta-band p{color:rgba(255,255,255,.78)}.cta-actions{display:flex;flex-direction:column;gap:.8rem;align-items:stretch}.cta-band .button.primary{background:#fff;color:var(--blue)}.faq-list{display:grid;gap:.8rem}.faq-list details{background:#fff;border:1px solid var(--line);border-radius:17px;overflow:hidden}.faq-list summary{cursor:pointer;padding:1.1rem 3.2rem 1.1rem 1.2rem;font-weight:850;position:relative}.faq-list summary:after{content:'+';position:absolute;right:1.2rem;font-size:1.4rem;color:var(--blue)}.faq-list details[open] summary:after{content:'–'}.faq-list details div{padding:0 1.2rem 1.2rem;color:var(--muted)}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:3rem;align-items:start}.article-content{background:#fff;border:1px solid var(--line);border-radius:28px;padding:clamp(1.5rem,4vw,3.4rem)}.article-content h2{font-size:2.1rem;margin-top:3rem}.article-content h3{margin-top:2rem}.article-content p,.article-content li{color:#435064}.sidebar{position:sticky;top:120px}.side-card{background:var(--ink);color:#fff;border-radius:22px;padding:1.4rem;margin-bottom:1rem}.side-card p{color:rgba(255,255,255,.68)}.side-card a{display:block;color:var(--lime);margin:.5rem 0;text-decoration:none;font-weight:800}.quote{border-left:4px solid var(--lime);padding:1rem 1.2rem;background:#f6fbe9;border-radius:0 14px 14px 0}.technique-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.tech-card{border:1px solid var(--line);border-radius:18px;padding:1.2rem;background:#fff}.tech-card strong{display:block;margin-bottom:.4rem}.location-grid{grid-template-columns:repeat(3,1fr)}.location-card h3,.university-card h3{margin-bottom:.4rem}.location-card a,.university-card a{color:var(--blue);font-weight:800;text-decoration:none}.university-grid{grid-template-columns:repeat(2,1fr)}.university-card .uni-meta{display:flex;gap:.4rem;flex-wrap:wrap;margin-bottom:.8rem}.university-card ul{color:var(--muted);padding-left:1.1rem}.note{background:#fff7e6;border:1px solid #f2d79d;border-radius:16px;padding:1rem 1.1rem;color:#684d19}.site-footer{background:var(--ink);color:#fff;padding:4rem 0 1.5rem}.footer-grid{width:min(calc(100% - 36px),var(--max));margin:auto;display:grid;grid-template-columns:1.25fr .75fr 1fr;gap:3rem}.footer-logo{width:150px}.site-footer p{color:rgba(255,255,255,.58)}.site-footer h2{font-size:.9rem;letter-spacing:.08em;text-transform:uppercase}.site-footer a{display:block;color:rgba(255,255,255,.75);text-decoration:none;margin:.55rem 0}.footer-bottom{width:min(calc(100% - 36px),var(--max));margin:3rem auto 0;padding-top:1.2rem;border-top:1px solid rgba(255,255,255,.14);display:flex;justify-content:space-between;gap:1rem;color:rgba(255,255,255,.45);font-size:.76rem}.hidden{display:none!important}
@media(max-width:1050px){.main-nav{position:fixed;inset:118px 18px auto;background:var(--ink);padding:1rem;border:1px solid rgba(255,255,255,.14);border-radius:18px;display:none;flex-direction:column;align-items:stretch;box-shadow:var(--shadow)}.main-nav.open{display:flex}.menu-toggle{display:block}.nav-contact{display:none}.hero-grid{grid-template-columns:1fr;gap:2.5rem}.hero-media{min-height:420px}.hero-media img{height:420px}.floating-card{left:1rem}.card-grid,.directory-list,.location-grid{grid-template-columns:repeat(2,1fr)}.article-layout{grid-template-columns:1fr}.sidebar{position:static}.technique-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:720px){.topbar-inner{font-size:.6rem;gap:.35rem}.topbar-inner span:nth-child(4),.topbar-inner span:nth-child(5){display:none}.nav-shell{min-height:74px}.brand,.brand img{width:135px}.hero-grid{min-height:auto;padding:3.6rem 0 5rem}.hero h1{font-size:clamp(2.6rem,13vw,4.3rem)}.hero-facts{grid-template-columns:1fr}.answer-box{grid-template-columns:1fr;margin-top:-1rem}.section{padding:4rem 0}.stat-grid,.card-grid,.pack-grid,.directory-list,.location-grid,.university-grid,.technique-grid{grid-template-columns:1fr}.pack-card:nth-child(2){transform:none}.split,.cta-band{grid-template-columns:1fr}.cta-band{margin-bottom:4rem}.footer-grid{grid-template-columns:1fr}.footer-bottom{flex-direction:column}.article-content{padding:1.35rem}.floating-card{position:relative;left:auto;bottom:auto;margin:-3rem 1rem 0}.hero-media{display:flex;flex-direction:column}.search-input{min-width:100%}}
/* Enlaces externos de la navegación principal */
.main-nav .external-main-link,
.main-nav .external-price-link { white-space: nowrap; }
.main-nav .external-price-link { font-weight: 800; }