:root{--azul:#00a6d6;--azul2:#073763;--mar:#0098c8;--arena:#fff8e6;--amarillo:#ffd15c;--negro:#101926;--texto:#243042;--blanco:#fff;--sombra:0 18px 45px rgba(5,35,55,.16);--radio:24px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:'Poppins',system-ui,-apple-system,Segoe UI,sans-serif;background:#f4fbff;color:var(--texto);line-height:1.6}.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(14px);border-bottom:1px solid rgba(0,0,0,.06)}.nav{max-width:1180px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:12px 18px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--azul2);font-weight:900}.brand img{width:48px;height:48px;border-radius:14px;object-fit:cover}.menu{display:flex;align-items:center;gap:18px}.menu a{color:var(--texto);text-decoration:none;font-weight:700;font-size:.95rem}.menu a:hover{color:var(--azul)}.lang{display:flex;gap:6px}.lang 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