/* Marco común de las páginas estáticas: cabecera, pie y tipografía de la
   portada (src/index.css). Se carga después de legal.css y contenido.css y
   manda sobre ellas. HTML del marco: scripts/marco-estatico.mjs. */

:root {
  --bg: #fbfbf9;
  --bg-soft: #f2f1ec;
  --ink: #17171c;
  --ink-soft: #44454d;
  --ink-muted: #6a6a72;
  --line: #e4e3dc;
  --line-strong: #d2d1c8;
  --accent: #2540e6;
  --accent-soft: #edefff;
  --ink-bg: #0e0e10;
  --on-ink: #ece9e2;
  --on-ink-soft: #9a9a9f;
  --display: "Instrument Serif", Georgia, "Times New Roman", serif;
  --body: "Inter", system-ui, -apple-system, sans-serif;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--body);
  background: var(--bg);
  color: var(--ink);
  min-width: 320px;
  overflow-x: hidden;
}
::selection {
  background: var(--ink);
  color: var(--bg);
}

.m-contenedor {
  width: 100%;
  max-width: 1180px;
  margin-inline: auto;
  padding-inline: 1.5rem;
}
@media (min-width: 640px) {
  .m-contenedor {
    padding-inline: 2rem;
  }
}
@media (min-width: 1024px) {
  .m-contenedor {
    padding-inline: 3rem;
  }
}

/* ── Cabecera ──────────────────────────────────────────── */

.m-cab {
  position: sticky;
  top: 0;
  z-index: 50;
  /* Fondo sólido y sin backdrop-filter: el filtro convierte la cabecera en
     el bloque contenedor de los position: fixed y recortaba el menú móvil. */
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.m-fila {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 4rem;
}
@media (min-width: 768px) {
  .m-fila {
    height: 4.5rem;
  }
}
.m-logo {
  flex-shrink: 0;
  font-family: var(--display);
  font-size: 1.5rem;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
}
.m-logo span {
  color: var(--accent);
}

.m-nav {
  display: none;
  align-items: center;
  gap: 0.25rem;
}
@media (min-width: 1024px) {
  .m-nav {
    display: flex;
  }
}
.m-enlace,
.m-grupo > button {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  white-space: nowrap;
  border: 0;
  background: none;
  font: inherit;
  font-size: 0.9rem;
  color: var(--ink-soft);
  text-decoration: none;
  border-radius: 999px;
  padding: 0.5rem 0.875rem;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}
.m-enlace:hover,
.m-grupo:hover > button,
.m-grupo:focus-within > button {
  background: var(--bg-soft);
  color: var(--ink);
}
.m-grupo {
  position: relative;
}
.m-grupo svg {
  transition: transform 0.2s ease;
}
.m-grupo:hover svg,
.m-grupo:focus-within svg {
  transform: rotate(180deg);
}
.m-panel {
  display: none;
  position: absolute;
  left: 0;
  top: 100%;
  padding-top: 0.5rem;
}
.m-grupo:hover .m-panel,
.m-grupo:focus-within .m-panel {
  display: block;
}
.m-caja {
  width: 22rem;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 0.5rem;
  box-shadow: 0 18px 40px -18px rgba(23, 23, 28, 0.25);
}
.m-caja a {
  display: block;
  border-radius: 0.75rem;
  padding: 0.75rem 1rem;
  text-decoration: none;
}
.m-caja a:hover,
.m-caja a:focus-visible {
  background: var(--bg-soft);
}
.m-caja .t {
  display: block;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink);
}
.m-caja .d {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.85rem;
  line-height: 1.35;
  color: var(--ink-muted);
}
.m-bono {
  margin-left: 0.5rem;
  white-space: nowrap;
  border-radius: 999px;
  padding: 0.5rem 0.875rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-soft);
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease;
}
.m-bono:hover {
  background: var(--accent);
  color: #fff;
}

.m-acciones {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.m-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  padding: 0 1.25rem;
  border-radius: 999px;
  background: var(--ink);
  color: var(--bg);
  font-size: 0.94rem;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.25s ease;
}
.m-cta:hover {
  background: var(--accent);
}
.m-cta-corto {
  display: none;
}
@media (max-width: 639px) {
  .m-cta svg,
  .m-cta-largo {
    display: none;
  }
  .m-cta-corto {
    display: inline;
  }
}

/* Menú móvil: <details> sin JavaScript. */
.m-movil {
  position: static;
}
@media (min-width: 1024px) {
  .m-movil {
    display: none;
  }
}
.m-movil > summary {
  list-style: none;
  display: grid;
  place-content: center;
  gap: 4px;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  cursor: pointer;
}
.m-movil > summary::-webkit-details-marker {
  display: none;
}
.m-movil > summary span {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--ink);
}
.m-hoja {
  position: fixed;
  inset: 4rem 0 0 0;
  overflow-y: auto;
  background: var(--bg);
  border-top: 1px solid var(--line);
  padding: 1.5rem 1.5rem calc(2rem + env(safe-area-inset-bottom));
}
.m-hoja-bono {
  display: block;
  border-radius: 1rem;
  background: var(--accent-soft);
  color: var(--accent);
  padding: 1rem 1.25rem;
  text-decoration: none;
}
.m-hoja-bono strong {
  display: block;
  font-weight: 500;
}
.m-hoja-bono span {
  display: block;
  font-size: 0.88rem;
  opacity: 0.85;
}
.m-etiqueta {
  margin: 2rem 0 0.25rem;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
.m-hoja ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.m-hoja li a {
  display: block;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 1.1rem;
  color: var(--ink);
  text-decoration: none;
}
.m-hoja li a span {
  display: block;
  margin-top: 0.1rem;
  font-size: 0.88rem;
  color: var(--ink-muted);
}
.m-hoja-cta {
  display: flex;
  justify-content: center;
  margin-top: 2rem;
  min-height: 3rem;
  align-items: center;
  border-radius: 999px;
  background: var(--ink);
  color: var(--bg);
  font-weight: 500;
  text-decoration: none;
}

/* ── Cuerpo: tipografía de la portada ──────────────────── */

.wrap {
  max-width: 760px;
  padding: 3rem 1.5rem 5rem;
}
@media (min-width: 768px) {
  .wrap {
    padding-top: 4.5rem;
  }
}
.wrap h1 {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(2.5rem, 1.6rem + 3.4vw, 4rem);
  line-height: 1;
  letter-spacing: -0.01em;
  text-wrap: balance;
  margin: 0 0 1rem;
}
.wrap h2 {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(1.75rem, 1.4rem + 1.2vw, 2.25rem);
  line-height: 1.08;
  letter-spacing: -0.005em;
  color: var(--ink);
  margin: 3.5rem 0 1rem;
  text-wrap: balance;
}
.wrap h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--ink);
  margin: 2rem 0 0.5rem;
}
.wrap p,
.wrap li {
  font-size: 1.02rem;
  line-height: 1.7;
  color: var(--ink-soft);
}
.wrap a {
  color: var(--accent);
  text-underline-offset: 2px;
}
.wrap .lede {
  font-size: 1.2rem;
  line-height: 1.55;
  color: var(--ink-soft);
  text-wrap: pretty;
}
@media (min-width: 768px) {
  .wrap .lede {
    font-size: 1.3rem;
  }
}

/* Migas como la etiqueta editorial de la portada: raya + versalita. */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.5rem;
  margin: 0 0 1.5rem;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}
.crumbs::before {
  content: "";
  width: 1.75rem;
  height: 1px;
  background: currentColor;
}
.crumbs a {
  color: var(--ink-muted);
  text-decoration: none;
}
.crumbs a:hover {
  color: var(--ink);
}
.meta {
  font-size: 0.88rem;
  color: var(--ink-muted);
  margin: 0 0 2.5rem;
}

/* Superficies como las tarjetas de la portada. */
.toc,
.end {
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--bg-soft);
}
.toc {
  padding: 1.5rem 1.75rem;
}
.toc li {
  font-size: 0.95rem;
}
.end {
  padding: 2rem;
  margin-top: 4rem;
}
@media (min-width: 640px) {
  .end {
    padding: 2.5rem;
  }
}
.end h2 {
  margin-top: 0;
}
.callout {
  border-left: 2px solid var(--accent);
  background: color-mix(in srgb, var(--accent-soft) 45%, transparent);
  border-radius: 0 0.75rem 0.75rem 0;
  padding: 1rem 1.25rem;
}
.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0 1.5rem;
  border-radius: 999px;
  background: var(--ink);
  color: var(--bg) !important;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.25s ease;
}
.cta:hover {
  background: var(--accent);
  opacity: 1;
}
.wrap table {
  font-size: 0.95rem;
}
.wrap th {
  font-weight: 600;
  color: var(--ink);
  border-bottom-color: var(--line-strong);
}
.relacionadas {
  border-top: 1px solid var(--line);
  padding-top: 1.5rem;
}

/* ── Pie: el mismo de la portada ───────────────────────── */

.m-pie {
  margin: 0;
  padding: 4rem 0 3rem;
  border: 0;
  background: var(--ink-bg);
  color: var(--on-ink);
  font-size: 1rem;
}
@media (min-width: 768px) {
  .m-pie {
    padding: 6rem 0 3.5rem;
  }
}
.m-pie a {
  color: var(--on-ink-soft);
  text-decoration: none;
}
.m-pie a:hover {
  color: var(--on-ink);
}
.m-pie p,
.m-pie li {
  color: var(--on-ink-soft);
}
.m-pie-cta {
  display: block;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(236, 233, 226, 0.16);
}
.m-pie-etiqueta {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--on-ink-soft);
}
.m-pie-etiqueta::before {
  content: "";
  width: 1.75rem;
  height: 1px;
  background: rgba(236, 233, 226, 0.28);
}
.m-pie-grande {
  display: block;
  margin-top: 1.25rem;
  font-family: var(--display);
  font-size: clamp(2.5rem, 1.6rem + 4vw, 4.5rem);
  line-height: 1;
  color: var(--on-ink);
}
.m-pie a.m-pie-cta:hover .m-pie-grande {
  color: #fff;
}
.m-pie-cols {
  display: grid;
  gap: 2.5rem;
  margin-top: 3.5rem;
}
@media (min-width: 768px) {
  .m-pie-cols {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .m-pie-cols {
    grid-template-columns: 1.5fr 1.2fr 1fr 1fr 1fr;
  }
}
.m-logo-pie {
  margin: 0;
  color: var(--on-ink) !important;
}
.m-logo-pie span {
  color: #8b99ff;
}
.m-pie-texto {
  margin-top: 1.25rem;
  max-width: 22rem;
  line-height: 1.6;
}
.m-pie-titulo {
  margin: 0;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--on-ink-soft);
}
.m-pie ul {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
}
.m-pie ul li {
  padding: 0.3rem 0;
  font-size: 0.9rem;
}
.m-pie-final {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: 3.5rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(236, 233, 226, 0.16);
  font-size: 0.85rem;
}
.m-pie-final p {
  margin: 0;
}
.m-pie-lema {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

/* ── Barra fija de contacto en móvil ───────────────────── */

.m-barra {
  display: none;
}
@media (max-width: 1023px) {
  .m-barra {
    position: fixed;
    inset: auto 0 0 0;
    z-index: 40;
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 0.5rem;
    padding: 0.625rem 1rem calc(0.625rem + env(safe-area-inset-bottom));
    background: var(--bg);
    border-top: 1px solid var(--line);
    box-shadow: 0 -10px 30px -20px rgba(23, 23, 28, 0.35);
  }
  .m-barra a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    min-height: 3rem;
    border-radius: 999px;
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    white-space: nowrap;
  }
  .m-barra-pri {
    background: var(--ink);
    color: var(--bg);
  }
  .m-barra-sec {
    border: 1px solid var(--line-strong);
    color: var(--ink);
  }
  /* Que la barra no tape el final del pie. */
  body {
    padding-bottom: calc(4.5rem + env(safe-area-inset-bottom));
  }
}