:root{
    --navy:#0B3D91;
    --ink:#0F1B2D;
    --sea:#1660C9;
    --sand:#FFC72C;
    --paper:#FFFFFF;
    --coral:#E0A100;
    --line: rgba(11,61,145,.15);
    box-sizing:border-box;
    padding-top:env(safe-area-inset-top,0px);
    padding-bottom:env(safe-area-inset-bottom,0px);
  }
  *,*::before,*::after{box-sizing:inherit}
  html{scroll-behavior:smooth; scroll-padding-top:76px}
  body{margin:0;background:var(--paper);color:var(--ink);font-family:'Inter',system-ui,sans-serif;line-height:1.55}
  html,body{overflow-x:clip}
  h1,h2,h3{font-family:'Source Serif 4',Georgia,serif;margin:0;font-weight:600;color:var(--navy)}
  a{color:inherit;text-decoration: none;}
  .wrap{margin:0 auto;padding:0 24px}

  /* NAV */
  header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;margin:0 auto}
  .brand{display:flex;align-items:center;gap:10px;font-family:'Source Serif 4',serif;font-weight:600;font-size:1.05rem;color:var(--navy);white-space:nowrap}
  .brand svg{flex:none}
  nav ul{list-style:none;display:flex;gap:22px;margin:0;padding:0;font-size:.92rem}
  nav a{text-decoration:none;color:var(--ink);opacity:.75;padding:4px 2px;border-bottom:2px solid transparent;transition:opacity .2s, border-color .2s}
  nav a:hover{opacity:1}
  nav a.active{opacity:1;border-color:var(--coral);color:var(--navy)}
  .navtoggle{display:none;background:none;border:1px solid var(--line);border-radius:6px;padding:6px 10px;font-size:1rem;cursor:pointer}

  /* NAV con dropdown por sección */
#navMenu{display:flex;align-items:center;gap:22px;font-size:.92rem}
.has-drop{position:relative}
.drop-trigger{background:none;border:none;border-bottom:2px solid transparent;font-family:inherit;font-size:.92rem;color:var(--ink);opacity:.75;cursor:pointer;display:inline-flex;align-items:center;gap:4px;padding:4px 2px;text-decoration:none;transition:opacity .2s,border-color .2s}
.drop-trigger:hover{opacity:1}
.navlink.active{opacity:1;color:var(--navy);border-bottom-color:var(--coral)}
.drop-trigger .caret{font-size:.65rem;transition:transform .2s}
.has-drop.open .drop-trigger .caret{transform:rotate(180deg)}
.drop-panel{position:absolute;top:calc(100% + 14px);left:50%;transform:translateX(-50%) translateY(6px);min-width:210px;background:#fff;border:1px solid var(--line);border-radius:6px;box-shadow:0 16px 34px rgba(11,61,145,.14);padding:8px;display:flex;flex-direction:column;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .16s ease, transform .16s ease;z-index:10}
.has-drop:hover .drop-panel, .has-drop.open .drop-panel{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}
.drop-panel a{display:block;font-size:.87rem;color:var(--ink);text-decoration:none;padding:8px 10px;border-radius:4px}
.drop-panel a:hover{background:var(--paper);color:var(--sea)}

@media(max-width:760px){
  .navtoggle{display:block}
  #navMenu{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:2px;padding:14px 24px;background:var(--paper);border-bottom:1px solid var(--line);max-height:80vh;overflow-y:auto}
  #navMenu.open{display:flex}
  .drop-trigger{width:100%;justify-content:space-between;padding:10px 2px;border-bottom:none}
  .drop-panel{position:static;min-width:auto;transform:none;box-shadow:none;border:none;padding:0 0 6px 14px;display:none;opacity:1;visibility:visible;pointer-events:auto;transition:none}
  .has-drop:hover .drop-panel{transform:none}
  .has-drop.open .drop-panel{display:flex}
}

 /* animaciones tipo AOS */
.reveal{opacity:0;transition:opacity .7s ease, transform .7s ease;transition-delay:var(--d,0ms);will-change:opacity,transform}
.reveal[data-anim="fade-up"]{transform:translateY(32px)}
.reveal[data-anim="fade-down"]{transform:translateY(-32px)}
.reveal[data-anim="fade-left"]{transform:translateX(48px)}
.reveal[data-anim="fade-right"]{transform:translateX(-48px)}
.reveal[data-anim="zoom-in"]{transform:scale(.9)}
.reveal[data-anim="flip-up"]{transform:perspective(600px) rotateX(-18deg) translateY(20px);transform-origin:top}
.reveal.visible{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){.reveal,.reveal[data-anim]{opacity:1;transform:none;transition:none}}

  /* HERO */
  .hero{position:relative;overflow:hidden;padding:64px 0 40px;background:var(--navy)}
  /* .hero .wrap{position:relative;z-index:2;color:var(--paper)} */
  @media(max-width:820px){.hero-grid{grid-template-columns:1fr}}
  .eyebrow{color:var(--sand);font-size:.85rem;opacity:.85;margin-bottom:14px}
  .hero h1{font-size:clamp(2.1rem,4.2vw,3.2rem);line-height:1.12;color:var(--paper)}
  .hero p.lead{margin-top:16px;max-width:46ch;color:var(--sand);font-size:1.05rem}
  .hero-cta{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap}
  .btn{display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:3px;font-size:.92rem;font-weight:600;text-decoration:none;cursor:pointer;border:1px solid transparent;transition:transform .15s ease, background .2s}
  .coral{background:var(--coral);color:#fff}
  .btn-primary:hover{transform:translateY(-1px)}
  .btn-ghost{border-color:rgba(255,255,255,.4);color:var(--paper)}
  .btn-ghost:hover{background:rgba(255,255,255,.08)}

  /* coastline svg motif, animates once on load */
  .coast{width:100%;height:auto}
  .coast path{fill:none;stroke:var(--sand);stroke-width:1.4;opacity:.55}
  .coast .fill{fill:var(--sea);opacity:.35;stroke:none}
  .coast .dot{fill:var(--coral)}
  .draw{stroke-dasharray:900;stroke-dashoffset:900;animation:draw 2.4s ease forwards .2s}
  @keyframes draw{to{stroke-dashoffset:0}}
  @media (prefers-reduced-motion: reduce){.draw{animation:none;stroke-dashoffset:0}}

  section{padding:56px 0}
  .section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:26px;flex-wrap:wrap}
  .section-head h2{font-size:1.6rem}
  .section-head p{margin:6px 0 0;color:var(--sea);max-width:52ch;font-size:.95rem}

  /* NOTICIAS carousel */
  .news{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .news-track-wrap{position:relative}
  .news-track{display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:6px;scrollbar-width:none}
  .news-track::-webkit-scrollbar{display:none}
.news-track-wrap .arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:2;box-shadow:0 4px 12px rgba(11,61,145,.2)}
.news-track-wrap .arrow.prev{left:-17px}
.news-track-wrap .arrow.next{right:-17px}
@media(max-width:760px){.news-track-wrap .arrow{display:none}} /* en mobile se desliza con el dedo */
  .news-card{scroll-snap-align:start;flex:0 0 calc((100% - 36px) / 3);border:1px solid var(--line);border-radius:4px;overflow:hidden;background:var(--paper);display:flex;flex-direction:column}
@media(max-width:900px){.news-card{flex-basis:calc((100% - 18px) / 2)}}
@media(max-width:560px){.news-card{flex-basis:85%}}
.news-thumb{height:130px;background:linear-gradient(135deg,var(--sea),var(--navy));display:flex;align-items:center;justify-content:center;color:var(--sand);font-size:.75rem;letter-spacing:.02em}
  .news-body{padding:14px 16px 18px}
  .news-date{font-size:.78rem;color:var(--coral);font-weight:600}
  .news-body h3{font-size:1.02rem;margin:6px 0 8px;line-height:1.3}
  .news-body p{font-size:.87rem;color:#3d4a50;margin:0}
  .arrow{width:34px;height:34px;border:1px solid var(--line);border-radius:50%;background:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1rem;color:var(--navy)}
  .arrow:hover{background:var(--sand)}

  /* ACTIVIDADES tabs */
  .tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:22px}
  .tab-btn{padding:8px 16px;border-radius:20px;border:1px solid var(--line);background:#fff;font-size:.85rem;cursor:pointer;color:var(--ink)}
  .tab-btn.active{background:var(--navy);color:var(--paper);border-color:var(--navy)}
  .agenda{display:grid;gap:12px}
  .agenda-item{display:grid;grid-template-columns:70px 1fr auto;gap:16px;align-items:center;padding:14px 16px;border:1px solid var(--line);border-radius:4px;background:#fff}
  .agenda-item .when{text-align:center;font-family:'Source Serif 4',serif;color:var(--navy)}
  .agenda-item .when .d{font-size:1.3rem;font-weight:700;display:block}
  .agenda-item .when .m{font-size:.72rem;text-transform:uppercase;color:var(--sea)}
  .agenda-item h4{margin:0 0 4px;font-size:.98rem;font-family:'Inter';font-weight:600}
  .agenda-item .meta{font-size:.8rem;color:var(--sea)}
  .tag{font-size:.72rem;padding:3px 9px;border-radius:12px;background:var(--sand);color:var(--navy);white-space:nowrap}
  .hidden{display:none !important}

  /* PRODUCCION filterable */
  .prod-filters{display:flex;gap:10px;margin-bottom:18px;flex-wrap:wrap}
  .chip{font-size:.8rem;padding:6px 13px;border:1px solid var(--line);border-radius:20px;background:#fff;cursor:pointer}
  .chip.active{background:var(--coral);color:#fff;border-color:var(--coral)}
  .prod-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:16px}
  .prod-card{border:1px solid var(--line);border-radius:4px;padding:16px;background:#fff}
  .prod-card .type{font-size:.72rem;color:var(--coral);font-weight:700;text-transform:uppercase;letter-spacing:.03em}
  .prod-card h4{font-family:'Source Serif 4',serif;font-size:1rem;margin:8px 0 6px;color:var(--navy)}
  .prod-card p{font-size:.84rem;color:#4a5860;margin:0}

  /* BIBLIOTECA */
  .lib{background:var(--navy);color:var(--paper)}
  .lib .section-head h2, .lib .section-head p{color:var(--paper)}
  .lib .section-head p{color:var(--sand)}
  .searchbar{display:flex;gap:10px;margin-bottom:20px;max-width:460px}
  .searchbar input{flex:1;padding:10px 14px;border-radius:4px;border:1px solid rgba(255,255,255,.3);background:rgba(255,255,255,.08);color:#fff;font-size:.9rem}
  .searchbar input::placeholder{color:rgba(255,255,255,.55)}
  .pdf-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px}
  .pdf-card{border:1px solid rgba(255,255,255,.2);border-radius:4px;padding:14px;display:flex;gap:10px;align-items:flex-start;background:rgba(255,255,255,.04)}
  .pdf-icon{width:34px;height:34px;flex:none;border-radius:3px;background:var(--coral);display:flex;align-items:center;justify-content:center;font-size:.68rem;font-weight:700;color:#fff}
  .pdf-card h5{margin:0 0 4px;font-size:.87rem;font-weight:600}
  .pdf-card span{font-size:.75rem;color:var(--sand)}
  .no-results{display:none;color:var(--sand);font-size:.9rem}

  /* MATERIAL EDUCATIVO */
  .edu-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:18px}
  .edu-card{border:1px solid var(--line);border-radius:4px;background:#fff;overflow:hidden}
  .edu-top{height:8px;background:var(--sea)}
  .edu-card.level-secundario .edu-top{background:var(--coral)}
  .edu-card.level-docentes .edu-top{background:var(--navy)}
  .edu-body{padding:16px}
  .edu-body .lvl{font-size:.72rem;text-transform:uppercase;color:var(--sea);font-weight:700;letter-spacing:.02em}
  .edu-body h4{font-family:'Source Serif 4',serif;font-size:1.02rem;margin:6px 0 8px;color:var(--navy)}
  .edu-body p{font-size:.85rem;color:#4a5860;margin:0}

  /* NEWSLETTER */
  .newsletter{background:var(--sand)}
  .nl-box{display:flex;gap:16px;align-items:center;flex-wrap:wrap;justify-content:space-between}
  .nl-box h2{font-size:1.4rem}
  form.nl-form{display:flex;gap:10px;flex-wrap:wrap}
  form.nl-form input{padding:11px 14px;border-radius:4px;border:1px solid var(--line);font-size:.9rem;min-width:220px}
  .nl-msg{font-size:.85rem;margin-top:8px;color:var(--navy);min-height:1.2em}
  .nl-msg.ok{color:#2d6a4f;font-weight:600}

  footer{padding:30px 0 40px;text-align:center;font-size:.8rem;color:var(--sea)}

  /* light/dark aware base (kept simple for a mockup) */
  @media (prefers-color-scheme: dark){
    :root:not([data-theme="light"]){--paper:#141C20;--ink:#EDEAE2;--line:rgba(231,220,196,.18)}
    body{background:var(--paper)}
    .news, .prod-card, .agenda-item, .edu-card, .news-thumb ~ .news-body{background:#1B262B}
    header{background:rgba(20,28,32,.92)}
  }