:root{
    --cyan:#00bbf1;--cyan-dark:#0090c2;--cyan-light:#e3f7fd;
    --navy:#2b56a9;--navy-dark:#1c3c7d;--ink:#0d1b2e;--gray:#5b6b82;
    --line:#e3e9f2;--white:#ffffff;--radius:20px;
    --shadow:0 20px 45px -15px rgba(43,86,169,.35);
    --surface:#ffffff;--header-bg:rgba(255,255,255,.92);--body-text:#28324a;--navy-text:#1c3c7d;
  }
  :root[data-theme="dark"]{
    --cyan-light:#0f2c38;--ink:#e8edf5;--gray:#93a3ba;--line:#263449;--white:#0f1720;
    --surface:#141d29;--header-bg:rgba(15,23,32,.88);--body-text:#c7d1e0;--navy-text:#8ec9f0;
    --shadow:0 18px 40px -15px rgba(0,0,0,.6);
  }
  *{box-sizing:border-box;margin:0;padding:0;}
  html{scroll-behavior:smooth;}
  body{font-family:'Inter',sans-serif;color:var(--ink);background:var(--white);line-height:1.7;overflow-x:hidden;}
  h1,h2,h3,.logo{font-family:'Poppins',sans-serif;}
  a{color:inherit;text-decoration:none;}
  img,svg{display:block;max-width:100%;}
  .wrap{max-width:820px;margin:0 auto;padding:0 24px;}
  .wrap-wide{max-width:1180px;margin:0 auto;padding:0 24px;}

  /* header */
  header.site{padding:18px 0;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--header-bg);backdrop-filter:blur(10px);z-index:100;}
  .nav-inner{max-width:1180px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;gap:20px;}
  .logo{display:flex;align-items:center;font-weight:800;font-size:23px;flex-shrink:0;}
  .logo .tu,.logo .rec{color:var(--cyan);}
  .logo .rec{font-weight:900;}
  .logo .dotcom{background:var(--navy);color:#fff;padding:2px 7px 3px;border-radius:6px;margin-left:4px;font-weight:800;font-size:13px;}
  nav.hnav{display:flex;gap:22px;align-items:center;}
  nav.hnav a{font-weight:600;font-size:15px;color:var(--navy-text);white-space:nowrap;}
  nav.hnav a:hover{color:var(--cyan-dark);}
  nav.hnav a.active{color:var(--cyan-dark);}
  .nav-cta{display:flex;gap:12px;align-items:center;}
  .btn.btn-sm{padding:9px 18px;font-size:13px;}
  .burger{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;padding:4px;}
  .burger span{width:26px;height:3px;background:var(--navy-text);border-radius:2px;display:block;}
  @media (max-width:1240px){
    nav.hnav{gap:14px;}
    nav.hnav a{font-size:13.5px;}
  }
  @media (max-width:1060px){
    nav.hnav{display:none;}
    .burger{display:flex;}
    nav.hnav.open{display:flex;flex-direction:column;align-items:flex-start;position:absolute;top:calc(100% + 8px);right:24px;background:var(--surface);padding:18px 26px;border-radius:16px;border:1px solid var(--line);box-shadow:0 20px 40px -15px rgba(20,40,80,.25);gap:16px;}
    nav.hnav.open a{font-size:15px;}
  }
  .btn{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;border-radius:100px;font-weight:700;font-size:14.5px;white-space:nowrap;}
  .btn-primary{background:var(--navy);color:#fff;}
  .btn-primary:hover{background:var(--navy-dark);}

  /* footer (igual que index.html) */
  footer.site{background:#0d1b2e;color:rgba(255,255,255,.75);padding:56px 0 26px;margin-top:70px;}
  .footer-top{display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:30px;margin-bottom:36px;}
  .footer-tagline{font-size:14.5px;max-width:320px;margin-top:12px;color:rgba(255,255,255,.55);}
  .footer-links{display:flex;gap:40px;flex-wrap:wrap;}
  .footer-col h5{color:#fff;font-size:12.5px;text-transform:uppercase;letter-spacing:.08em;margin-bottom:12px;}
  .footer-col a{display:block;font-size:14px;margin-bottom:9px;color:rgba(255,255,255,.65);}
  .footer-col a:hover{color:var(--cyan);}
  .footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:12.5px;color:rgba(255,255,255,.45);max-width:1180px;margin:0 auto;padding-left:24px;padding-right:24px;}
  .footer-top,.footer-links{max-width:1180px;margin:0 auto;padding-left:24px;padding-right:24px;}

  /* blog index */
  .blog-hero{padding:56px 0 36px;text-align:center;background:linear-gradient(180deg,var(--cyan-light),var(--white));}
  .blog-hero .eyebrow{color:var(--cyan-dark);font-weight:800;font-size:13px;letter-spacing:.12em;text-transform:uppercase;display:block;margin-bottom:10px;}
  .blog-hero h1{font-size:clamp(28px,4vw,42px);font-weight:800;}
  .blog-hero p{color:var(--gray);margin-top:12px;max-width:560px;margin-left:auto;margin-right:auto;}
  .tag-filter{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-top:26px;}
  .tag-pill{font-size:13px;font-weight:700;padding:7px 16px;border-radius:100px;background:var(--surface);border:1.5px solid var(--line);color:var(--navy-text);}
  .tag-pill:hover,.tag-pill.active{border-color:var(--cyan);color:var(--cyan-dark);background:var(--cyan-light);}
  .post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:1180px;margin:40px auto;padding:0 24px;}
  .post-card{border:1px solid var(--line);border-radius:18px;overflow:hidden;display:flex;flex-direction:column;transition:transform .25s ease,box-shadow .25s ease,opacity .25s ease;background:var(--surface);}
  .post-card.is-hidden{display:none;}
  .post-card.is-hiding{opacity:0;transform:scale(.97);}
  .post-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);}
  .post-card img{width:100%;aspect-ratio:1200/630;object-fit:cover;background:var(--navy);}
  .post-card-body{padding:20px 20px 22px;display:flex;flex-direction:column;flex-grow:1;}
  .post-tags{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:10px;}
  .post-tag{font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.04em;color:var(--cyan-dark);background:var(--cyan-light);padding:4px 10px;border-radius:100px;}
  .post-card h3{font-size:18px;font-weight:800;line-height:1.3;margin-bottom:8px;}
  .post-excerpt{color:var(--gray);font-size:14px;flex-grow:1;margin-bottom:14px;}
  .post-meta{font-size:12.5px;color:var(--gray);display:flex;gap:10px;align-items:center;}
  .post-readmore{font-weight:700;font-size:13.5px;color:var(--navy-text);margin-top:12px;display:inline-flex;align-items:center;gap:5px;}

  /* article page */
  .article-hero{padding:44px 0 0;}
  .article-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px;}
  .article-hero h1{font-size:clamp(26px,4.2vw,40px);font-weight:800;line-height:1.2;margin-bottom:16px;}
  .article-meta{display:flex;gap:14px;align-items:center;color:var(--gray);font-size:14px;flex-wrap:wrap;margin-bottom:28px;}
  .article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--gray);}
  .article-share{display:flex;align-items:center;gap:12px;margin-bottom:32px;}
  .article-share span{font-size:12.5px;font-weight:800;color:var(--gray);text-transform:uppercase;letter-spacing:.06em;}
  .article-share.bottom{margin:44px 0 0;padding-top:28px;border-top:1px solid var(--line);}
  .share-btn{width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;flex-shrink:0;transition:transform .2s ease,opacity .2s ease;}
  .share-btn:hover{transform:translateY(-3px);opacity:.9;}
  .share-btn svg{width:19px;height:19px;}
  .share-linkedin{background:#0A66C2;}
  .share-whatsapp{background:#25D366;}
  .reading-progress{position:fixed;top:0;left:0;height:3px;background:linear-gradient(90deg,var(--cyan),var(--navy));width:0%;z-index:200;transition:width .1s linear;}
  .cover-img{width:100%;aspect-ratio:1200/630;object-fit:cover;height:auto;border-radius:var(--radius);margin-bottom:36px;box-shadow:var(--shadow);}
  .toc{background:var(--cyan-light);border-radius:16px;padding:22px 24px;margin-bottom:36px;}
  .toc h5{font-size:12.5px;text-transform:uppercase;letter-spacing:.08em;color:var(--navy-text);margin-bottom:10px;}
  .toc ol{padding-left:20px;}
  .toc li{margin-bottom:6px;font-size:14.5px;}
  .toc a{color:var(--navy-text);font-weight:600;}
  .toc a:hover{color:var(--cyan-dark);}
  .article-body{font-size:17px;color:var(--body-text);}
  .article-body h2{font-size:23px;font-weight:800;color:var(--ink);margin:38px 0 14px;scroll-margin-top:90px;}
  .article-body p{margin-bottom:18px;}
  .article-body ul,.article-body ol{margin:0 0 18px 22px;}
  .article-body li{margin-bottom:8px;}
  .article-body strong{color:var(--ink);}
  .article-body blockquote{border-left:3px solid var(--cyan);padding:4px 20px;margin:24px 0;color:var(--navy-text);font-style:italic;font-size:17px;}
  .article-body figure{margin:30px 0;}
  .article-body figure img{width:100%;border-radius:16px;border:1px solid var(--line);display:block;}
  .article-body figcaption{text-align:center;font-size:13px;color:var(--gray);margin-top:10px;}
  .country-block{margin-bottom:26px;}
  .country-block h3{font-size:17px;font-weight:800;margin-bottom:10px;scroll-margin-top:90px;}
  .country-block ul{columns:2;column-gap:24px;margin-left:18px;}
  .country-block li{break-inside:avoid;font-size:15px;margin-bottom:7px;}
  .wellbeing-note{background:var(--cyan-light);border-radius:14px;padding:18px 22px;margin:26px 0;font-size:15px;color:var(--navy-text);}
  .source-note{font-size:13.5px;color:var(--gray);margin-top:-8px;}
  .source-note a{color:var(--cyan-dark);font-weight:600;}

  .article-cta{background:linear-gradient(120deg,var(--navy),var(--navy-dark));color:#fff;border-radius:var(--radius);padding:34px 30px;margin:44px 0;text-align:center;}
  .article-cta h4{font-size:22px;font-weight:800;margin-bottom:8px;}
  .article-cta p{opacity:.9;margin-bottom:20px;max-width:480px;margin-left:auto;margin-right:auto;}
  .btn-cyan{background:var(--cyan);color:#fff;}
  .btn-cyan:hover{background:var(--cyan-dark);}

  .author-box{display:flex;gap:16px;align-items:flex-start;border:1px solid var(--line);border-radius:16px;padding:22px;margin:40px 0;}
  .author-avatar{width:56px;height:56px;border-radius:50%;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;flex-shrink:0;font-family:'Poppins',sans-serif;}
  .author-box h5{font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--gray);margin-bottom:4px;}
  .author-box p{font-size:14.5px;color:var(--gray);margin-top:4px;}
  .author-box a{color:var(--cyan-dark);font-weight:700;font-size:14px;}

  .related{margin:50px 0;}
  .related h4{font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--gray);margin-bottom:16px;}
  .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
  .related-card{border:1px solid var(--line);border-radius:14px;padding:16px;font-size:14px;font-weight:700;transition:border-color .2s;}
  .related-card:hover{border-color:var(--cyan);}
  .related-card span{display:block;font-weight:600;font-size:12px;color:var(--cyan-dark);text-transform:uppercase;margin-bottom:6px;letter-spacing:.04em;}

  .back-link{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:14px;color:var(--navy-text);margin-bottom:20px;}
  .back-link:hover{color:var(--cyan-dark);}

  @media (max-width:900px){
    .post-grid{grid-template-columns:1fr 1fr;}
    .related-grid{grid-template-columns:1fr;}
  }
  @media (max-width:600px){
    .post-grid{grid-template-columns:1fr;}
    .country-block ul{columns:1;}
    .author-box{flex-direction:column;}
  }
  @media (max-width:480px){
    .nav-inner{gap:10px;}
    .logo{font-size:19px;}
    .theme-toggle{width:32px;height:32px;}
    .theme-toggle svg{width:15px;height:15px;}
    header.site .btn{padding:8px 14px;font-size:13px;}
    .nav-cta{gap:8px;}
    .nav-inner{padding:0 18px;}
    .logo .dotcom{font-size:11px;padding:2px 6px 3px;margin-left:3px;}
    .burger span{width:24px;}
    nav.hnav.open{right:18px;}
  }

  /* ---------- Buscador del blog (solo blog/index.html) ---------- */
  .audience-filter{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-top:26px;}
  .audience-pill{font-size:14px;font-weight:800;padding:10px 20px;border-radius:100px;background:var(--surface);border:1.5px solid var(--line);color:var(--navy-text);cursor:pointer;font-family:'Inter',sans-serif;transition:border-color .2s ease,color .2s ease,background .2s ease;}
  .audience-pill:hover{border-color:var(--cyan);color:var(--cyan-dark);}
  .audience-pill.active{background:var(--navy);border-color:var(--navy);color:#fff;}
  .blog-search{max-width:440px;margin:24px auto 0;position:relative;}
  .blog-search svg{position:absolute;left:17px;top:50%;transform:translateY(-50%);width:17px;height:17px;color:var(--gray);pointer-events:none;}
  .blog-search input{width:100%;padding:13px 18px 13px 46px;border-radius:100px;border:1.5px solid var(--line);font-size:14.5px;font-family:'Inter',sans-serif;color:var(--ink);background:var(--surface);}
  .blog-search input:focus{outline:none;border-color:var(--cyan);}
  .blog-search input::placeholder{color:var(--gray);}
  .no-results{display:none;text-align:center;color:var(--gray);padding:50px 24px;grid-column:1/-1;font-size:15px;}

  /* ---------- Modo oscuro: toggle ---------- */
  .theme-toggle{width:38px;height:38px;border-radius:50%;border:1.5px solid var(--line);background:var(--surface);display:flex;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;transition:border-color .2s ease,background .2s ease;color:var(--navy-text);}
  .theme-toggle:hover{border-color:var(--cyan);}
  .theme-toggle svg{width:18px;height:18px;}
  .theme-toggle .icon-sun{display:none;}
  [data-theme="dark"] .theme-toggle .icon-moon{display:none;}
  [data-theme="dark"] .theme-toggle .icon-sun{display:block;}

  @media (max-width:400px){
    .logo{font-size:17px;}
    .logo .dotcom{font-size:10px;padding:2px 5px 3px;}
    header.site .btn{padding:7px 11px;font-size:12px;}
    .theme-toggle{width:30px;height:30px;}
    .nav-cta{gap:6px;}
    .nav-inner{gap:6px;}
  }
  @media (max-width:340px){
    .logo{font-size:15px;}
    .logo .dotcom{display:none;}
    .nav-inner{padding:0 12px;}
  }
  .article-body{overflow-wrap:anywhere;}
  .article-cta .btn{white-space:normal;text-align:center;justify-content:center;}