:root{
  --paper:#f8f6f1;--card:#ffffff;--ink:#1e2833;--muted:#4f5b66;--rule:#d8d1c2;
  --teal:#1d4e5f;--teal-d:#143a47;--wine:#8e2430;--sand:#efe7d6;--focus:#d9822b;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:1.0625rem/1.65 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
h1,h2,h3,.brand-name,.cta-title{font-family:Georgia,"Times New Roman",serif;line-height:1.25;color:var(--teal-d)}
h1{font-size:1.9rem;margin:.4em 0 .5em}
h2{font-size:1.4rem;margin:1.8em 0 .5em;padding-bottom:.25em;border-bottom:1px solid var(--rule)}
h3{font-size:1.15rem;margin:1.4em 0 .4em}
a{color:var(--teal);text-underline-offset:2px}
a:hover{color:var(--wine)}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
.wrap{max-width:52rem;margin:0 auto;padding:0 1.1rem}
.skip{position:absolute;left:-999px;top:0;background:#fff;padding:.5rem 1rem;z-index:10}
.skip:focus{left:.5rem;top:.5rem}
.topbar{background:var(--teal-d);color:#fff;font-size:.85rem;text-align:center;padding:.35rem 1rem}
.site-header{background:var(--card);border-bottom:3px double var(--rule)}
.header-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.6rem;padding-top:.8rem;padding-bottom:.8rem}
.brand{display:flex;align-items:center;gap:.6rem;text-decoration:none;color:var(--ink)}
.brand-mark{display:inline-grid;place-items:center;width:2.4rem;height:2.4rem;border:2px solid var(--teal);color:var(--teal);font:700 1rem Georgia,serif;border-radius:3px}
.brand-name{display:block;font-size:1.3rem;font-weight:700}
.brand-tag{display:block;font-size:.8rem;color:var(--muted)}
nav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.2rem .9rem}
nav a{text-decoration:none;font-size:.95rem;padding:.2rem 0;display:inline-block}
nav a:hover{text-decoration:underline}
main{padding-bottom:2.5rem}
.kicker{text-transform:uppercase;letter-spacing:.08em;font-size:.78rem;color:var(--wine);font-weight:700;margin:1.6rem 0 0}
.lead{font-size:1.13rem;color:var(--muted)}
.hero h1{font-size:2.1rem}
table{width:100%;border-collapse:collapse;margin:1rem 0;font-size:.95rem;background:var(--card)}
th,td{border:1px solid var(--rule);padding:.45rem .6rem;text-align:left;vertical-align:top}
thead th{background:var(--sand)}
.table-wrap{overflow-x:auto}
.cta{background:var(--card);border:1px solid var(--rule);border-left:6px solid var(--wine);padding:1.1rem 1.2rem;margin:2rem 0;border-radius:4px}
.cta-kicker{margin:0;font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.cta-title{font-size:1.35rem;font-weight:700;margin:.15rem 0 .4rem}
.cta-note{font-size:.9rem;color:var(--muted)}
.cta-actions{display:flex;flex-wrap:wrap;gap:.6rem;margin:.8rem 0}
.btn{display:inline-block;background:var(--wine);color:#fff;text-decoration:none;font-weight:700;padding:.65rem 1.2rem;border-radius:4px}
.btn:hover{background:#6f1b25;color:#fff}
.btn-alt{background:transparent;color:var(--teal-d);border:2px solid var(--teal)}
.btn-alt:hover{background:var(--teal);color:#fff}
.age{font-size:.88rem;font-weight:700;color:var(--wine);margin:.4rem 0 0}
.ejemplo{background:#f1f5f6;border:1px dashed var(--teal);padding:1rem 1.1rem;margin:1.4rem 0;border-radius:4px}
.ejemplo-tag{display:inline-block;margin:0;background:var(--teal);color:#fff;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;padding:.1rem .5rem;border-radius:2px}
.ejemplo-title{font-weight:700;margin:.5rem 0 .3rem}
.ejemplo-foot{font-size:.82rem;color:var(--muted);font-style:italic;margin-bottom:0}
.cards{list-style:none;padding:0;display:grid;gap:.8rem;grid-template-columns:1fr}
.cards a{display:block;background:var(--card);border:1px solid var(--rule);border-top:4px solid var(--teal);padding:.9rem 1rem;text-decoration:none;color:var(--ink);height:100%}
.cards a:hover{border-top-color:var(--wine)}
.card-t{display:block;font:700 1.1rem Georgia,serif;color:var(--teal-d)}
.card-d{display:block;font-size:.93rem;color:var(--muted);margin-top:.25rem}
.letters{font:700 1.1rem Georgia,serif;word-spacing:.4rem}
.letters a{text-decoration:none;padding:.1rem .3rem;border:1px solid var(--rule);background:var(--card)}
.gl-grid{display:grid;gap:1rem;grid-template-columns:1fr}
.gl-group{background:var(--card);border:1px solid var(--rule);padding:.6rem 1rem}
.gl-letter{font-size:1.6rem;margin:.2rem 0;color:var(--wine);border:0}
.gl-group dl{margin:0}
.gl-group dt{font-weight:700;margin-top:.5rem}
.gl-group dd{margin:0 0 .3rem;font-size:.95rem;color:var(--muted)}
.crumbs ol{list-style:none;padding:0;margin:1rem 0 0;display:flex;flex-wrap:wrap;font-size:.88rem;color:var(--muted)}
.crumbs li+li::before{content:"›";margin:0 .4rem}
.byline{font-size:.9rem;color:var(--muted)}
.note-rg{margin-top:2rem;padding:.7rem 1rem;background:var(--sand);font-size:.92rem}
.related{margin-top:2rem}
.site-footer{background:var(--teal-d);color:#e9eef0;padding:1.6rem 0;font-size:.92rem}
.site-footer a{color:#fff}
.site-footer .age{color:#ffd9a8}
.footer-links{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:.4rem 1.2rem}
.small{font-size:.82rem;opacity:.9}
code{background:var(--sand);padding:0 .25rem}
@media (min-width:42rem){
  h1{font-size:2.2rem}.hero h1{font-size:2.5rem}
  .cards{grid-template-columns:1fr 1fr}
  .gl-grid{grid-template-columns:1fr 1fr}
}