/* Nova Iuris — hoja de estilos */
:root {
  --papel: #f7f9fb;
  --tinta: #16233b;
  --texto: #273244;
  --tenue: #5c6a7e;
  --linea: #d5dce5;
  --acento: #0d6b5f;
  --acento-suave: #e3f0ee;
  --serif: "Literata", Georgia, "Times New Roman", serif;
  --sans: "Public Sans", "Helvetica Neue", Arial, sans-serif;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --papel: #0e1520;
    --tinta: #eef2f7;
    --texto: #d3dbe5;
    --tenue: #95a3b6;
    --linea: #263244;
    --acento: #5cc2b1;
    --acento-suave: #12302c;
  }
}
* { box-sizing: border-box; }
html { scroll-padding-top: 1.5rem; }
body {
  margin: 0;
  background: var(--papel);
  color: var(--texto);
  font-family: var(--serif);
  font-size: 1.0625rem;
  line-height: 1.7;
  -webkit-text-size-adjust: 100%;
}
a { color: var(--acento); text-underline-offset: 0.18em; }
a:focus-visible, summary:focus-visible { outline: 2px solid var(--acento); outline-offset: 3px; border-radius: 2px; }
.saltar { position: absolute; left: -999px; }
.saltar:focus { left: 1rem; top: 1rem; background: var(--papel); padding: .5rem 1rem; z-index: 10; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* cabecera y pie */
.cabecera {
  display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  max-width: 72rem; margin: 0 auto; padding: 1.5rem 1.5rem 1rem;
  border-bottom: 1px solid var(--linea);
}
.marca { text-decoration: none; color: var(--tinta); font-size: 1.6rem; letter-spacing: -0.01em; }
.marca-nova { font-family: var(--sans); font-weight: 700; }
.marca-iuris { font-family: var(--serif); font-style: italic; color: var(--acento); margin-left: .08em; }
.cabecera nav { display: flex; gap: 1.5rem; font-family: var(--sans); font-size: .95rem; }
.cabecera nav a { color: var(--texto); text-decoration: none; }
.cabecera nav a:hover { color: var(--acento); text-decoration: underline; }
main { max-width: 72rem; margin: 0 auto; padding: 2rem 1.5rem 4rem; }
.pie {
  max-width: 72rem; margin: 0 auto; padding: 1.5rem; border-top: 1px solid var(--linea);
  font-family: var(--sans); font-size: .85rem; color: var(--tenue);
}
.pie a { margin-right: 1rem; }
h1, h2, h3 { color: var(--tinta); line-height: 1.25; }
h1 { font-size: clamp(1.8rem, 4vw, 2.5rem); font-weight: 600; margin: 0 0 1rem; }

/* portada */
.portada { padding: 3rem 0 2.5rem; max-width: 46rem; }
.portada h1 { font-size: clamp(2.1rem, 5.5vw, 3.6rem); font-weight: 400; letter-spacing: -0.015em; line-height: 1.12; }
.lema { font-family: var(--sans); color: var(--tenue); font-size: 1.1rem; margin: 0; }
.seccion { margin-top: 3rem; max-width: 46rem; }
.seccion > h2 { font-family: var(--sans); font-size: 1rem; font-weight: 700; color: var(--tenue); margin-bottom: 1rem; }
.codigo { border-left: 3px solid var(--acento); padding: .25rem 0 .25rem 1.25rem; margin-bottom: 2rem; }
.codigo h2, .codigo h3 { margin: 0 0 .25rem; font-size: 1.35rem; }
.codigo p { margin: 0 0 .75rem; color: var(--tenue); }
.codigo ul { list-style: none; padding: 0; margin: 0; }
.codigo li { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .25rem 1rem; padding: .4rem 0; }
.codigo li span { font-family: var(--sans); font-size: .85rem; color: var(--tenue); }
.novedades { list-style: none; padding: 0; margin: 0; }
.novedades li { padding: 1rem 0; border-bottom: 1px solid var(--linea); }
.novedades time { display: block; font-family: var(--sans); font-size: .85rem; color: var(--tenue); }
.novedades a { font-size: 1.15rem; }
.novedades p { margin: .35rem 0 0; }
.rss { font-family: var(--sans); font-size: .9rem; color: var(--tenue); }

/* cabecera de norma */
.norma-cab { max-width: 48rem; margin-bottom: 2.5rem; }
.norma-cab .tipo {
  display: inline-block; font-family: var(--sans); font-size: .8rem; font-weight: 600;
  color: var(--acento); background: var(--acento-suave); padding: .15rem .6rem; border-radius: 1rem; margin: 0 0 1rem;
}
.oficial { font-style: italic; color: var(--tenue); margin: 0 0 .5rem; }
.gaceta { font-family: var(--sans); font-size: .9rem; color: var(--tenue); margin: 0 0 1rem; }
.resumen { font-size: 1.1rem; }

/* cuerpo de la norma */
.norma { display: grid; grid-template-columns: 17rem minmax(0, 1fr); gap: 3rem; align-items: start; }
.indice { position: sticky; top: 1rem; max-height: calc(100vh - 2rem); overflow-y: auto; font-family: var(--sans); font-size: .85rem; }
.indice summary { font-weight: 700; color: var(--tinta); cursor: pointer; margin-bottom: .5rem; }
.indice ol { list-style: none; padding: 0; margin: 0; }
.indice li a { display: block; padding: .2rem 0; color: var(--texto); text-decoration: none; line-height: 1.35; }
.indice li a:hover { color: var(--acento); }
.indice .i-cap { font-weight: 700; color: var(--tinta); margin-top: 1rem; }
.indice .i-sec { color: var(--tenue); margin-top: .5rem; font-style: italic; }
.texto { max-width: 46rem; }
.division { font-family: var(--sans); font-size: .95rem; font-weight: 700; color: var(--tinta); margin: 3rem 0 1rem 5.5rem; }
.division.sub { margin-top: 1.5rem; font-weight: 600; color: var(--tenue); }
.division.subsub { margin-top: 1rem; font-weight: 400; font-style: italic; color: var(--tenue); }
.preambulo { margin: 0 0 2rem 5.5rem; font-size: .95rem; color: var(--tenue); }
.preambulo summary { font-family: var(--sans); cursor: pointer; color: var(--acento); }

/* artículo: el numeral en el margen es el elemento distintivo */
.articulo { display: grid; grid-template-columns: 4.5rem minmax(0, 1fr); gap: 1rem; padding: 1.5rem 0; border-top: 1px solid var(--linea); }
.numeral { font-family: var(--serif); font-size: 2.6rem; line-height: 1; color: var(--acento); text-align: right; font-weight: 400; }
.numeral a { text-decoration: none; }
.numeral a:hover { text-decoration: underline; text-decoration-thickness: 1px; }
.articulo h3 { font-size: 1.15rem; font-weight: 600; margin: 0 0 .75rem; }
.articulo p { margin: 0 0 .9rem; }
.articulo p.n1 { padding-left: 1.25rem; }
.articulo p.n2 { padding-left: 2.5rem; }
.notas { background: var(--acento-suave); border-radius: 4px; padding: .9rem 1.1rem; font-family: var(--sans); font-size: .9rem; margin-top: 1.25rem; }
.notas p { margin: 0 0 .5rem; }
.notas p:last-child { margin: 0; }

/* página de artículo individual */
.articulo-solo main { max-width: 52rem; }
.migas { font-family: var(--sans); font-size: .9rem; margin: 0; }
.ubicacion { font-family: var(--sans); font-size: .85rem; color: var(--tenue); margin: .25rem 0 1rem; }
.articulo-solo .articulo { border-top: 0; }
.articulo-solo .articulo h3 { font-size: 1.5rem; }
.ficha { display: grid; grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr)); gap: 1rem 2rem; margin: 1rem 0 1.5rem 5.5rem; padding: 1.25rem 0; border-top: 1px solid var(--linea); border-bottom: 1px solid var(--linea); font-family: var(--sans); font-size: .9rem; }
.ficha dt { color: var(--tenue); font-size: .8rem; }
.ficha dd { margin: 0; color: var(--tinta); }
.cita { margin-left: 5.5rem; font-family: var(--sans); font-size: .85rem; color: var(--tenue); }
.vecinos { display: flex; justify-content: space-between; gap: 1rem; margin: 2rem 0 0 5.5rem; font-family: var(--sans); font-size: .95rem; }

/* páginas de texto */
.prosa { max-width: 40rem; }

@media (max-width: 820px) {
  .norma { grid-template-columns: 1fr; gap: 1.5rem; }
  .indice { position: static; max-height: none; }
  .indice details:not([open]) { border-bottom: 1px solid var(--linea); padding-bottom: .5rem; }
  .articulo { grid-template-columns: 3rem minmax(0, 1fr); gap: .75rem; }
  .numeral { font-size: 1.9rem; }
  .division, .preambulo, .ficha, .cita, .vecinos { margin-left: 0; }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }
@media print {
  .cabecera nav, .indice, .vecinos, .saltar { display: none; }
  body { background: #fff; color: #000; }
}