:root{
    --navy:#12326e; --navy-deep:#0e2557; --cta:#1e4fa3; --cta-ink:#173e82;
    --ground:#F4F6FB; --card:#FFFFFF; --card-2:#EEF2F9;
    --ink:#1B2431; --muted:#5B6676; --line:#E1E6F0; --line-strong:#CDD5E4;
    --ok:#1A7F4B;
    --shadow:0 1px 2px rgba(18,50,110,.05), 0 14px 40px -18px rgba(18,50,110,.22);
  }
  @media (prefers-color-scheme: dark){
    :root:not([data-theme="light"]){
      --navy:#8FB0EE; --navy-deep:#A9C4F7; --cta:#3f6fd0; --cta-ink:#c7d7f6;
      --ground:#0B111C; --card:#141C2C; --card-2:#1B2536;
      --ink:#E4E9F1; --muted:#94A0B3; --line:#26324A; --line-strong:#38466A;
      --ok:#57C08C;
      --shadow:0 1px 2px rgba(0,0,0,.4), 0 18px 46px -20px rgba(0,0,0,.6);
      color-scheme:dark;
    }
  }
  :root[data-theme="dark"]{
    --navy:#8FB0EE; --navy-deep:#A9C4F7; --cta:#3f6fd0; --cta-ink:#c7d7f6;
    --ground:#0B111C; --card:#141C2C; --card-2:#1B2536;
    --ink:#E4E9F1; --muted:#94A0B3; --line:#26324A; --line-strong:#38466A;
    --ok:#57C08C;
    --shadow:0 1px 2px rgba(0,0,0,.4), 0 18px 46px -20px rgba(0,0,0,.6);
    color-scheme:dark;
  }
  *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{margin:0;background:var(--ground);color:var(--ink);
    font-family:"Inter",-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
    font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}
  .wrap{max-width:1080px;margin:0 auto;padding:0 20px}
  a{color:var(--cta-ink);text-decoration:none}
  h1,h2,h3{font-family:"Fraunces",Georgia,serif;font-weight:500;letter-spacing:-.015em;color:var(--ink);text-wrap:balance}
  h2{font-size:clamp(22px,3.2vw,30px);margin:0 0 14px}
  h3{font-size:19px;margin:0 0 8px}
  p{margin:0 0 14px}
  .muted{color:var(--muted)}

  header{border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--ground);z-index:10}
  .bar{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:16px}
  .brand{display:flex;align-items:center;gap:10px}
  .brand img{height:34px;width:auto;display:block}
  @media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .brand{background:#fff;padding:5px 10px;border-radius:9px}}
  :root[data-theme="dark"] .brand{background:#fff;padding:5px 10px;border-radius:9px}
  nav.links{display:flex;align-items:center;gap:22px;font-size:14px;font-weight:600}
  nav.links a{color:var(--muted)}
  nav.links a:hover{color:var(--ink)}
  .btn{display:inline-block;background:var(--cta);color:#fff;font-weight:600;font-size:14px;
    padding:10px 18px;border-radius:10px;box-shadow:var(--shadow)}
  .btn.ghost{background:transparent;color:var(--cta-ink);box-shadow:none;border:1px solid var(--line-strong)}
  @media (max-width:720px){nav.links a:not(.btn){display:none}}

  .hero{text-align:center;padding:64px 0 44px;max-width:760px;margin:0 auto}
  .kicker{font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-bottom:16px}
  .hero h1{font-size:clamp(28px,5vw,44px);line-height:1.16;margin:0 0 18px}
  .hero p.lead{font-size:18px;color:var(--muted);max-width:60ch;margin:0 auto 26px;text-wrap:pretty}
  .hero .ctas{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
  .trust{margin-top:22px;font-size:13px;color:var(--muted)}

  section{padding:44px 0;border-top:1px solid var(--line)}
  .grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin-top:24px}
  .feature{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:var(--shadow)}
  .feature p{margin:0;font-size:14.5px;color:var(--muted)}
  .steps{counter-reset:s;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin-top:22px}
  .step{background:var(--card-2);border:1px solid var(--line);border-radius:14px;padding:20px}
  .step::before{counter-increment:s;content:counter(s);display:inline-flex;align-items:center;justify-content:center;
    width:30px;height:30px;border-radius:8px;background:var(--cta);color:#fff;font-family:"Fraunces",serif;font-weight:600;margin-bottom:10px}
  .step p{margin:0;font-size:14.5px;color:var(--muted)}

  .faq details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:4px 18px;margin-bottom:10px}
  .faq summary{cursor:pointer;font-weight:600;padding:14px 0;list-style:none}
  .faq summary::-webkit-details-marker{display:none}
  .faq summary::after{content:"+";float:right;color:var(--muted);font-weight:700}
  .faq details[open] summary::after{content:"–"}
  .faq details p{color:var(--muted);font-size:15px;margin:0 0 14px}

  .cta-final{text-align:center;background:var(--navy);color:#fff;border-radius:18px;padding:40px 24px;margin:44px 0}
  .cta-final h2{color:#fff}
  .cta-final .btn{background:#fff;color:var(--navy-deep)}
  @media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .cta-final{background:var(--card);border:1px solid var(--line)} :root:not([data-theme="light"]) .cta-final h2{color:var(--ink)}}
  :root[data-theme="dark"] .cta-final{background:var(--card);border:1px solid var(--line)}
  :root[data-theme="dark"] .cta-final h2{color:var(--ink)}

  footer{border-top:1px solid var(--line);padding:30px 0;font-size:13.5px;color:var(--muted)}
  footer .fcols{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px}
  footer a{color:var(--muted)}
  footer a:hover{color:var(--ink)}

  /* ---- Artículo (páginas de fondo / marco legal) ---- */
  .breadcrumb{font-size:13px;color:var(--muted);margin-bottom:6px}
  .breadcrumb a{color:var(--muted);text-decoration:underline;text-decoration-color:var(--line-strong)}
  .article{max-width:720px;margin:0 auto}
  .article .fecha{font-size:13px;color:var(--muted);margin-bottom:2px}
  .article h2{margin-top:6px}
  .article .dato{background:var(--card-2);border:1px solid var(--line);border-radius:12px;
    padding:16px 18px;margin:18px 0;font-size:14.5px}
  .article .dato b{color:var(--ink)}
  blockquote.norma{background:var(--card);border:1px solid var(--line);border-left:4px solid var(--cta);
    border-radius:0 12px 12px 0;padding:16px 20px;margin:16px 0;font-size:15px;color:var(--ink);font-style:italic}
  .fuente-norma{font-size:12.5px;color:var(--muted);margin:-8px 0 20px;font-style:normal}
  .fuente-norma a{color:var(--muted);text-decoration:underline}
  .aviso-legal{font-size:12.5px;color:var(--muted);background:var(--card-2);border:1px solid var(--line);
    border-radius:12px;padding:14px 18px;margin-top:30px}
  .toc{background:var(--card-2);border:1px solid var(--line);border-radius:12px;padding:16px 20px;margin:22px 0 30px}
  .toc p{margin:0 0 8px;font-weight:600;font-size:13px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}
  .toc ol{margin:0;padding-left:20px;font-size:14.5px}
  .toc li{margin-bottom:4px}