:root{
    --ink:#1B2A4A;
    --paper:#EFE6D8;
    --paper-light:#F7F2E8;
    --stamp:#B2402E;
    --olive:#6B7355;
    --text:#22201C;
    --line: rgba(34,32,28,0.18);
    --shadow: 0 20px 40px -20px rgba(27,42,74,0.35);
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--paper-light);
    color:var(--text);
    font-family:'Source Serif 4', serif;
    line-height:1.55;
  }
  h1,h2,h3{
    font-family:'Fraunces', serif;
    font-weight:600;
    color:var(--ink);
    margin:0 0 .4em;
  }
  .mono{
    font-family:'IBM Plex Mono', monospace;
    letter-spacing:.02em;
  }
  a{color:inherit;}
  .wrap{max-width:1120px;margin:0 auto;padding:0 28px;}
  .eyebrow{
    font-family:'IBM Plex Mono', monospace;
    font-size:.72rem;
    letter-spacing:.14em;
    text-transform:uppercase;
    color:var(--olive);
    display:flex;align-items:center;gap:10px;
  }
  .eyebrow::before{content:"";width:22px;height:1px;background:var(--olive);display:inline-block;}

  /* Header */
  header{
    position:sticky;top:0;z-index:50;
    background:rgba(247,242,232,0.92);
    backdrop-filter:blur(6px);
    border-bottom:1px solid var(--line);
  }
  .navbar{
    display:flex;align-items:center;justify-content:space-between;
    padding:16px 28px;max-width:1120px;margin:0 auto;
  }
  .brand{display:flex;align-items:center;gap:10px;font-family:'Fraunces',serif;font-weight:700;font-size:1.25rem;color:var(--ink);}
  .stampmark{
    width:30px;height:30px;border-radius:50%;
    border:2px solid var(--stamp);
    display:flex;align-items:center;justify-content:center;
    font-family:'IBM Plex Mono',monospace;font-size:.62rem;font-weight:600;
    color:var(--stamp);transform:rotate(-8deg);
  }
  nav.links{display:flex;gap:28px;font-family:'IBM Plex Mono',monospace;font-size:.82rem;}
  nav.links a{text-decoration:none;color:var(--text);opacity:.75;transition:opacity .2s;}
  nav.links a:hover{opacity:1;}
  .btn{
    font-family:'IBM Plex Mono',monospace;
    font-size:.82rem;
    padding:11px 20px;
    border-radius:3px;
    border:1px solid var(--ink);
    background:var(--ink);
    color:var(--paper-light);
    cursor:pointer;
    text-decoration:none;
    display:inline-block;
    transition:transform .15s ease, box-shadow .15s ease;
  }
  .btn:hover{transform:translateY(-1px);box-shadow:var(--shadow);}
  .btn.ghost{background:transparent;color:var(--ink);}

  /* Hero */
  .hero{
    padding:88px 0 60px;
    display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center;
  }
  .hero h1{font-size:clamp(2.2rem,4.2vw,3.4rem);line-height:1.08;}
  .hero p.lede{font-size:1.12rem;max-width:46ch;color:#3a362f;}
  .hero-ctas{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap;}

  /* Document mock */
  .doc-mock{
    background:var(--paper);
    border:1px solid var(--line);
    border-radius:2px;
    padding:34px 30px;
    box-shadow:var(--shadow);
    position:relative;
    font-family:'IBM Plex Mono',monospace;
    font-size:.82rem;
    color:#3a362f;
    min-height:400px;
  }
  .doc-mock::before{
    content:"";position:absolute;inset:10px;border:1px solid var(--line);pointer-events:none;
  }
  .doc-title{font-family:'Fraunces',serif;font-weight:600;font-size:1.05rem;color:var(--ink);text-align:center;margin-bottom:6px;}
  .doc-sub{text-align:center;font-size:.68rem;opacity:.6;margin-bottom:22px;}
  .doc-line{border-bottom:1px dashed var(--line);padding:5px 0;min-height:1.4em;}
  .blank{color:var(--stamp);}
  .cursor{display:inline-block;width:7px;height:1em;background:var(--ink);vertical-align:-2px;animation:blink 1s step-end infinite;}
  @keyframes blink{50%{opacity:0;}}
  .stamp-seal{
    position:absolute;bottom:26px;right:30px;
    width:104px;height:104px;border-radius:50%;
    border:3px solid var(--stamp);color:var(--stamp);
    display:flex;align-items:center;justify-content:center;text-align:center;
    font-family:'IBM Plex Mono',monospace;font-size:.62rem;font-weight:700;letter-spacing:.08em;
    transform:rotate(-14deg) scale(0);
    opacity:0;transition:transform .5s cubic-bezier(.2,1.4,.4,1), opacity .3s;
    padding:6px;
  }
  .stamp-seal.show{transform:rotate(-14deg) scale(1);opacity:1;}

  /* Steps */
  section.block{padding:72px 0;}
  .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:36px;}
  .step{border-top:2px solid var(--ink);padding-top:16px;}
  .step .num{font-family:'IBM Plex Mono',monospace;color:var(--stamp);font-size:.8rem;}
  .step h3{font-size:1.15rem;margin-top:6px;}
  .step p{color:#3a362f;font-size:.96rem;}

  /* Generator */
  .generator{
    background:var(--ink);
    color:var(--paper-light);
    border-radius:4px;
    padding:44px;
    display:grid;grid-template-columns:1fr 1fr;gap:44px;
  }
  .generator h2{color:var(--paper-light);}
  .field{margin-bottom:16px;}
  .field label{display:block;font-family:'IBM Plex Mono',monospace;font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;opacity:.75;margin-bottom:6px;}
  .field input, .field select{
    width:100%;padding:10px 12px;border-radius:3px;border:1px solid rgba(239,230,216,0.3);
    background:rgba(239,230,216,0.06);color:var(--paper-light);font-family:'Source Serif 4',serif;font-size:.98rem;
  }
  .field input::placeholder{color:rgba(239,230,216,0.4);}
  .row2{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
  .preview{
    background:var(--paper);
    color:var(--text);
    border-radius:3px;
    padding:26px 24px;
    font-family:'IBM Plex Mono',monospace;
    font-size:.78rem;
    max-height:560px;overflow-y:auto;
    white-space:pre-wrap;
    box-shadow: inset 0 0 0 1px var(--line);
  }
  .preview h3{font-family:'Fraunces',serif;text-align:center;font-size:1rem;color:var(--ink);margin-bottom:14px;}
  .download-bar{margin-top:18px;display:flex;gap:12px;align-items:center;}
  .hint{font-size:.78rem;opacity:.65;}

  /* Ventajas */
  .grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:32px;}
  .card{border:1px solid var(--line);padding:24px;border-radius:3px;background:var(--paper);}
  .card h3{font-size:1.05rem;}
  .card p{font-size:.92rem;color:#3a362f;margin:0;}

  /* Blog / Guías */
  .articles{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-top:32px;}
  .article{
    background:var(--paper);border:1px solid var(--line);border-radius:3px;
    padding:26px 24px;
  }
  .article .tag{
    font-family:'IBM Plex Mono',monospace;font-size:.68rem;letter-spacing:.08em;
    text-transform:uppercase;color:var(--stamp);
  }
  .article h3{font-size:1.1rem;margin-top:8px;}
  .article .excerpt{color:#3a362f;font-size:.92rem;margin:0 0 12px;}
  .article-toggle{
    font-family:'IBM Plex Mono',monospace;font-size:.78rem;color:var(--ink);
    background:none;border:none;border-bottom:1px solid var(--ink);cursor:pointer;padding:0;
  }
  .article-body{
    display:none;margin-top:16px;padding-top:16px;border-top:1px dashed var(--line);
    font-size:.94rem;color:#3a362f;
  }
  .article-body.open{display:block;}
  .article-body p{margin:0 0 12px;}
  .article-body h4{font-family:'Fraunces',serif;font-size:.98rem;color:var(--ink);margin:0 0 6px;}
  @media (max-width:860px){
    .articles{grid-template-columns:1fr;}
  }


  .cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:28px;}
  .cat-card{background:var(--paper);border:1px solid var(--line);border-radius:4px;padding:22px 20px;text-decoration:none;color:var(--text);display:block;}
  .cat-card .cat-count{font-family:'IBM Plex Mono',monospace;font-size:.68rem;color:var(--stamp);text-transform:uppercase;letter-spacing:.06em;}
  .cat-card h3{font-size:1.05rem;margin:8px 0 6px;}
  .cat-card p{font-size:.88rem;color:#4a463e;margin:0;}
  @media (max-width:860px){ .cat-grid{grid-template-columns:1fr;} }

  /* FAQ */
  details{border-bottom:1px solid var(--line);padding:16px 0;}
  summary{cursor:pointer;font-family:'Fraunces',serif;font-weight:600;font-size:1.05rem;color:var(--ink);list-style:none;display:flex;justify-content:space-between;align-items:center;}
  summary::-webkit-details-marker{display:none;}
  summary::after{content:"+";font-family:'IBM Plex Mono',monospace;color:var(--stamp);font-size:1.3rem;}
  details[open] summary::after{content:"–";}
  details p{color:#3a362f;margin:10px 0 0;font-size:.96rem;max-width:70ch;}

  footer{
    background:var(--ink);color:var(--paper-light);padding:50px 0 30px;margin-top:40px;
  }
  footer .foot-top{display:flex;justify-content:space-between;flex-wrap:wrap;gap:24px;}
  footer .brand{color:var(--paper-light);}
  .adslot{
    display:flex;justify-content:center;align-items:center;
    overflow-x:auto;padding:6px 0;
  }
  .legal-note{font-size:.78rem;opacity:.55;margin-top:26px;max-width:70ch;font-family:'IBM Plex Mono',monospace;}

  @media (max-width:860px){
    .hero{grid-template-columns:1fr;}
    .steps, .grid3{grid-template-columns:1fr;}
    .generator{grid-template-columns:1fr;padding:28px;}
    nav.links{display:none;}
    .row2{grid-template-columns:1fr;}
  }
  :focus-visible{outline:2px solid var(--stamp);outline-offset:2px;}
  @media (prefers-reduced-motion: reduce){
    .cursor{animation:none;}
    .stamp-seal{transition:none;}
  }