:root{
  --blue:#173d8f;--blue2:#0d2a6a;--red:#b6272f;--gold:#c89b2d;--cream:#f7f2e7;--ink:#172033;--muted:#647086;--line:#dfe4ec;--white:#fff;--shadow:0 20px 50px rgba(21,38,77,.12);--radius:22px;--max:1180px
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:#fff;line-height:1.6}img{max-width:100%;display:block}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.container{width:min(var(--max),calc(100% - 40px));margin-inline:auto}.skip-link{position:fixed;left:12px;top:-100px;z-index:9999;background:#fff;padding:10px 14px;border-radius:8px}.skip-link:focus{top:12px}.site-header{position:fixed;inset:0 0 auto 0;z-index:1000;background:rgba(255,255,255,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(23,61,143,.08)}.nav-wrap{height:82px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:12px;min-width:240px}.brand img{width:52px;height:60px;object-fit:contain}.brand strong{font-size:1rem;display:block;letter-spacing:.02em}.brand small{font-size:.72rem;color:var(--muted);display:block}.main-nav{display:flex;align-items:center;gap:22px;font-size:.92rem;font-weight:650}.main-nav>a:not(.nav-cta){position:relative}.main-nav>a:not(.nav-cta):after{content:"";position:absolute;height:2px;width:0;left:0;bottom:-6px;background:var(--gold);transition:.25s}.main-nav>a:hover:after,.main-nav>a:focus-visible:after{width:100%}.nav-cta{background:var(--red);color:#fff!important;padding:11px 16px;border-radius:999px;box-shadow:0 8px 20px rgba(182,39,47,.22)}.lang-switch{display:flex;border:1px solid var(--line);border-radius:999px;padding:3px}.lang-btn{border:0;background:transparent;border-radius:999px;padding:5px 8px;font-weight:800;font-size:.72rem;cursor:pointer}.lang-btn.active{background:var(--blue);color:#fff}.menu-toggle{display:none;border:0;background:transparent;width:44px;height:44px;padding:10px;cursor:pointer}.menu-toggle span{display:block;height:2px;background:var(--ink);margin:5px 0}.hero{min-height:780px;height:92vh;display:grid;align-items:center;position:relative;overflow:hidden}.hero-media{position:absolute;inset:0;background:url('../img/actividad-alumnos.webp') center 36%/cover no-repeat;transform:scale(1.02)}.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(6,22,61,.9) 0%,rgba(10,34,83,.72) 44%,rgba(10,34,83,.18) 74%,rgba(10,34,83,.08) 100%)}.hero-content{position:relative;z-index:2;padding-top:80px}.hero-copy{max-width:680px;color:#fff}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--gold);font-size:.78rem;letter-spacing:.15em;text-transform:uppercase;font-weight:850}.eyebrow:before{content:"";width:28px;height:2px;background:currentColor}.hero h1{font-size:clamp(3rem,7vw,6.4rem);line-height:.94;margin:18px 0 22px;letter-spacing:-.045em;max-width:900px}.hero p{font-size:clamp(1rem,1.5vw,1.24rem);max-width:620px;color:rgba(255,255,255,.86)}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:32px 0}.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:999px;padding:14px 20px;font-weight:800;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s}.btn:hover{transform:translateY(-2px)}.btn-primary{background:var(--red);color:#fff;box-shadow:0 12px 30px rgba(182,39,47,.28)}.btn-light{background:#fff;color:var(--blue2)}.btn.full{width:100%;border-radius:12px}.hero-trust{display:flex;flex-wrap:wrap;gap:0;margin-top:28px}.hero-trust span{display:grid;padding:0 24px;border-left:1px solid rgba(255,255,255,.22)}.hero-trust span:first-child{padding-left:0;border-left:0}.hero-trust strong{font-size:1.55rem;line-height:1}.hero-trust small{color:rgba(255,255,255,.7);margin-top:6px}.scroll-cue{position:absolute;z-index:2;bottom:20px;left:50%;transform:translateX(-50%);color:#fff;font-size:2.2rem;opacity:.7}.quick-strip{position:relative;z-index:4;margin-top:-42px}.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);background:#fff;border-radius:18px;box-shadow:var(--shadow);overflow:hidden}.quick-grid a{display:flex;gap:14px;align-items:center;padding:24px 26px;border-right:1px solid var(--line)}.quick-grid a:last-child{border-right:0}.quick-icon{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:var(--cream);color:var(--blue);font-weight:900}.quick-grid strong{display:block}.quick-grid small{display:block;color:var(--muted)}.section{padding:110px 0}.split-grid{display:grid;grid-template-columns:1.03fr .97fr;gap:80px;align-items:center}.split-grid.reverse{grid-template-columns:.95fr 1.05fr}.media-stack{position:relative;min-height:560px}.img-main{width:82%;height:470px;object-fit:cover;border-radius:var(--radius);box-shadow:var(--shadow)}.img-float{position:absolute;width:55%;height:260px;object-fit:cover;right:0;bottom:0;border:8px solid #fff;border-radius:18px;box-shadow:var(--shadow)}.badge-photo{position:absolute;left:28px;bottom:24px;background:var(--blue);color:#fff;padding:14px 18px;border-radius:12px;box-shadow:var(--shadow)}.badge-photo strong,.badge-photo small{display:block}.badge-photo small{opacity:.75;max-width:220px}.section-copy h2,.section-head h2{font-size:clamp(2.2rem,4vw,4.4rem);line-height:1.02;letter-spacing:-.04em;margin:16px 0 24px}.section-copy>p,.section-head>p{color:var(--muted);font-size:1.05rem}.values-row{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:30px}.values-row article{border-top:2px solid var(--line);padding-top:18px}.values-row article span{color:var(--gold);font-weight:900}.values-row h3{margin:8px 0}.values-row p{font-size:.92rem;color:var(--muted)}.levels{background:linear-gradient(180deg,#f7f9fc,#fff)}.section-head{max-width:800px}.section-head.centered{text-align:center;margin:0 auto 52px}.section-head.centered .eyebrow{justify-content:center}.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.level-card{background:#fff;border:1px solid #e5e9f1;border-radius:20px;overflow:hidden;box-shadow:0 12px 35px rgba(16,43,92,.07);transition:transform .25s,box-shadow .25s}.level-card:hover{transform:translateY(-7px);box-shadow:var(--shadow)}.level-image{height:260px;overflow:hidden}.level-image img{width:100%;height:100%;object-fit:cover;transition:transform .45s}.level-card:hover img{transform:scale(1.04)}.level-body{padding:26px}.level-body>span{font-weight:900;color:var(--gold)}.level-body h3{font-size:1.65rem;margin:4px 0 8px}.level-body p{color:var(--muted);min-height:90px}.level-body a{color:var(--blue);font-weight:800}.benefits{background:var(--blue2);color:#fff}.benefits .section-copy>p{color:rgba(255,255,255,.72)}.benefit-list{display:grid;gap:18px;margin-top:28px}.benefit-list article{display:flex;gap:14px}.benefit-list i{font-style:normal;flex:0 0 34px;height:34px;border-radius:50%;display:grid;place-items:center;background:rgba(200,155,45,.18);color:#f2ca62;font-weight:900}.benefit-list h3{font-size:1.05rem;margin:0 0 3px}.benefit-list p{margin:0;color:rgba(255,255,255,.68);font-size:.94rem}.feature-photo{position:relative}.feature-photo>img{height:660px;width:100%;object-fit:cover;border-radius:var(--radius)}.feature-card{position:absolute;left:-34px;bottom:28px;max-width:360px;background:#fff;color:var(--ink);padding:25px;border-radius:16px;box-shadow:var(--shadow)}.feature-card>span{font-size:3rem;line-height:.5;color:var(--gold)}.feature-card p{font-size:1.15rem;font-weight:750}.feature-card small{color:var(--muted)}.video-section{background:#fff}.video-shell{max-width:1000px;margin:auto;border-radius:24px;overflow:hidden;background:#06163d;box-shadow:var(--shadow)}.video-shell video{width:100%;display:block;aspect-ratio:16/9;background:#06163d}.gallery-section{background:var(--cream)}.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:220px;gap:14px}.gallery-item{border:0;padding:0;overflow:hidden;border-radius:16px;background:#ddd;cursor:zoom-in}.gallery-item.wide{grid-column:span 2}.gallery-item.tall{grid-row:span 2}.gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform .4s}.gallery-item:hover img{transform:scale(1.045)}.faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:80px;align-items:start}.accordion details{border-bottom:1px solid var(--line);padding:18px 0}.accordion summary{cursor:pointer;font-weight:800;font-size:1.08rem;list-style:none;display:flex;justify-content:space-between;gap:16px}.accordion summary::-webkit-details-marker{display:none}.accordion summary:after{content:"+";color:var(--blue);font-size:1.4rem}.accordion details[open] summary:after{content:"–"}.accordion p{color:var(--muted);margin:10px 32px 0 0}.contact-section{padding-bottom:0;background:#f8fafc}.contact-grid{display:grid;grid-template-columns:1fr .85fr;gap:70px;align-items:start}.contact-info h2{font-size:clamp(2.4rem,4vw,4.6rem);line-height:1.02;letter-spacing:-.04em}.contact-info>p{color:var(--muted);max-width:640px}.contact-list{display:grid;gap:10px;margin:26px 0}.contact-list a,.contact-list>span{display:grid;grid-template-columns:120px 1fr;gap:18px;padding:11px 0;border-bottom:1px solid var(--line)}.contact-list b{color:var(--blue)}.social-row{margin-top:20px}.social-row a{font-weight:800;color:var(--blue)}.contact-form{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px;box-shadow:var(--shadow)}.contact-form h3{font-size:1.6rem;margin-top:0}.contact-form label{display:grid;gap:7px;margin-bottom:16px;font-size:.9rem;font-weight:750}.contact-form input,.contact-form select,.contact-form textarea{width:100%;border:1px solid #cfd6e3;border-radius:10px;padding:12px 13px;background:#fff;color:var(--ink);outline:none}.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(23,61,143,.1)}.form-note,.form-status{font-size:.78rem;color:var(--muted)}.map-wrap{margin-top:70px;height:420px}.map-wrap iframe{width:100%;height:100%;border:0;display:block}.site-footer{background:#0d1530;color:#eaf0ff;padding:64px 0 24px}.footer-grid{display:grid;grid-template-columns:1.4fr .7fr 1fr;gap:50px}.footer-brand{display:flex;gap:18px;align-items:center}.footer-brand img{width:82px;height:94px;object-fit:contain;background:#fff;border-radius:10px;padding:4px}.footer-brand strong{font-size:1.3rem}.footer-brand p{color:#9faac1}.footer-grid h3{font-size:.95rem;color:#fff}.footer-grid>div:not(.footer-brand){display:flex;flex-direction:column;gap:8px}.footer-grid a{color:#aeb8cc}.footer-grid a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:42px;padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#8793aa;font-size:.84rem}.floating-whatsapp{position:fixed;right:20px;bottom:20px;z-index:800;width:58px;height:58px;border-radius:50%;display:grid;place-items:center;background:#1fb66c;color:#fff;font-weight:900;box-shadow:0 12px 30px rgba(0,0,0,.22);border:3px solid #fff}.back-top{position:fixed;right:28px;bottom:90px;z-index:790;width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:#fff;color:var(--blue);box-shadow:0 8px 24px rgba(0,0,0,.15);opacity:0;pointer-events:none;transition:.2s}.back-top.show{opacity:1;pointer-events:auto}.lightbox{width:min(1100px,94vw);max-height:94vh;border:0;padding:0;background:transparent;overflow:visible}.lightbox::backdrop{background:rgba(0,0,0,.9)}.lightbox img{max-height:90vh;width:auto;max-width:100%;margin:auto;border-radius:12px}.lightbox-close{position:fixed;top:18px;right:24px;border:0;background:#fff;color:#111;width:46px;height:46px;border-radius:50%;font-size:2rem;line-height:1;cursor:pointer}.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}.reveal.visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal{opacity:1;transform:none;transition:none}.level-image img,.gallery-item img{transition:none}}
@media (max-width:980px){.main-nav{position:fixed;top:82px;left:0;right:0;background:#fff;display:none;flex-direction:column;align-items:stretch;padding:22px 24px 30px;border-top:1px solid var(--line);box-shadow:0 20px 30px rgba(0,0,0,.08)}.main-nav.open{display:flex}.menu-toggle{display:block}.nav-cta{text-align:center}.lang-switch{align-self:flex-start}.hero{min-height:760px;height:auto;padding:120px 0 80px}.hero-overlay{background:linear-gradient(90deg,rgba(6,22,61,.88),rgba(6,22,61,.6))}.quick-grid{grid-template-columns:1fr}.quick-grid a{border-right:0;border-bottom:1px solid var(--line)}.quick-grid a:last-child{border-bottom:0}.split-grid,.split-grid.reverse,.faq-grid,.contact-grid{grid-template-columns:1fr;gap:48px}.media-stack{max-width:680px}.feature-photo{max-width:760px;margin:auto}.feature-card{left:20px}.cards-3{grid-template-columns:1fr}.level-card{display:grid;grid-template-columns:.9fr 1.1fr}.level-body p{min-height:0}.gallery-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}}
@media (max-width:640px){.container{width:min(100% - 28px,var(--max))}.nav-wrap{height:72px}.main-nav{top:72px}.brand{min-width:0}.brand img{width:44px;height:50px}.brand small{display:none}.hero{min-height:720px}.hero-media{background-position:60% center}.hero-overlay{background:linear-gradient(90deg,rgba(6,22,61,.9),rgba(6,22,61,.72))}.hero h1{font-size:clamp(2.8rem,15vw,4.6rem)}.hero-trust{display:grid;grid-template-columns:1fr 1fr;gap:18px}.hero-trust span{border:0;padding:0}.hero-trust span:last-child{grid-column:1/-1}.quick-strip{margin-top:-24px}.quick-grid a{padding:18px}.section{padding:78px 0}.split-grid{gap:38px}.media-stack{min-height:420px}.img-main{height:350px;width:92%}.img-float{height:180px;width:58%}.badge-photo{left:12px;bottom:0}.values-row{grid-template-columns:1fr}.level-card{display:block}.level-image{height:230px}.feature-photo>img{height:500px}.feature-card{left:12px;right:12px;bottom:12px;max-width:none}.gallery-grid{grid-template-columns:1fr;grid-auto-rows:250px}.gallery-item.wide,.gallery-item.tall{grid-column:auto;grid-row:auto}.contact-list a,.contact-list>span{grid-template-columns:1fr;gap:2px}.contact-form{padding:22px}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.footer-bottom{flex-direction:column}.floating-whatsapp{right:14px;bottom:14px}.back-top{right:22px;bottom:82px}}