/* ==========================================================================
   Base: reset, tipografía, layout, botones, cabecera y pie del sitio
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--vr-cabecera-alto) + 16px); }
body {
  margin: 0;
  font-family: var(--vr-fuente);
  font-size: var(--vr-cuerpo);
  line-height: 1.65;
  color: var(--vr-texto);
  background: var(--vr-fondo);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg, video, iframe { display: block; max-width: 100%; }
img { height: auto; }
h1, h2, h3, h4 { margin: 0 0 .5em; line-height: 1.15; font-weight: 700; letter-spacing: -.01em; }
p { margin: 0 0 1em; }
a { color: var(--vr-azul-accion); text-underline-offset: .2em; }
a:hover { color: var(--vr-azul-accion-hover); }
button { font: inherit; }
ul, ol { padding-left: 1.25em; }
:focus-visible { outline: 3px solid var(--vr-azul-500); outline-offset: 3px; border-radius: 6px; }

.sr-only {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.saltar {
  position: absolute; left: 16px; top: -60px; z-index: 100;
  background: var(--vr-navy-900); color: #fff; padding: 10px 16px; border-radius: 8px;
}
.saltar:focus { top: 12px; color: #fff; }

.icono { width: 1.25em; height: 1.25em; flex: none; }

/* ── Layout ─────────────────────────────────────────────────────────────── */
.contenedor { width: 100%; max-width: calc(var(--vr-ancho) + 2 * var(--vr-margen)); margin-inline: auto; padding-inline: var(--vr-margen); }
.contenedor--estrecho { max-width: calc(var(--vr-ancho-estrecho) + 2 * var(--vr-margen)); }

.seccion { position: relative; isolation: isolate; padding-block: calc(var(--vr-seccion) * .5); }
.seccion:first-child { padding-top: var(--vr-seccion); }
.seccion:last-child { padding-bottom: var(--vr-seccion); }
.seccion__fondo { position: absolute; inset: 0; z-index: -1; pointer-events: none; }

.titulo-seccion { font-size: var(--vr-h2); font-weight: 700; }
.titulo-seccion--pequeno { font-size: var(--vr-h3); }
.titulo-seccion--centro, .subtitulo-seccion--centro { text-align: center; }
.subtitulo-seccion { color: var(--vr-texto-2); font-size: 1.125rem; margin-top: -.25em; }
.encabezado-seccion { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 16px 24px; margin-bottom: 24px; }
.encabezado-seccion .titulo-seccion { margin-bottom: 0; }

.etiqueta {
  display: inline-block; margin: 0 0 .75em; padding: .25em .9em;
  font-size: .8125rem; font-weight: 600; letter-spacing: .04em; text-transform: uppercase;
  color: var(--vr-navy-900); background: var(--vr-azul-100); border-radius: var(--vr-radio-pildora);
}
.etiqueta--aviso { background: var(--vr-lavanda-200); }
.chip {
  display: inline-flex; align-items: center; gap: .35em; padding: .15em .7em; margin: 0 .4em .4em 0;
  font-size: .8125rem; font-weight: 500; border-radius: var(--vr-radio-pildora);
  background: var(--vr-azul-100); color: var(--vr-navy-900);
}
.chip--suave { background: var(--vr-fondo-2); }
.chip .icono { width: 1em; height: 1em; }

.vacio { color: var(--vr-texto-2); font-style: italic; }
.nota { margin-top: 24px; padding: 16px 20px; background: var(--vr-blanco); border-left: 4px solid var(--vr-azul-500); border-radius: var(--vr-radio-sm); }

.marco { border-radius: var(--vr-radio-card); overflow: hidden; background: var(--vr-blanco); border: 1px solid var(--vr-borde); box-shadow: var(--vr-sombra-card); }
.marco img { width: 100%; }

/* Texto enriquecido (Markdown) */
.prosa > :last-child { margin-bottom: 0; }
.prosa h3 { font-size: var(--vr-h3); margin-top: 1.5em; }
.prosa li { margin-bottom: .35em; }
.prosa strong { font-weight: 600; }
.prosa blockquote { margin: 1em 0; padding-left: 1em; border-left: 3px solid var(--vr-azul-500); color: var(--vr-texto-2); }

/* ── Botones ────────────────────────────────────────────────────────────── */
.grupo-botones { display: flex; flex-wrap: wrap; gap: 12px 16px; align-items: center; }
.grupo-botones--centro { justify-content: center; }
.boton {
  display: inline-flex; align-items: center; justify-content: center; gap: .6em;
  min-height: 48px; padding: .7em 1.6em;
  font-weight: 600; font-size: 1rem; line-height: 1.2; text-decoration: none; text-align: center;
  border-radius: var(--vr-radio-pildora); border: 1.5px solid transparent;
  transition: background var(--vr-transicion), color var(--vr-transicion), box-shadow var(--vr-transicion), transform var(--vr-transicion);
  cursor: pointer;
}
.boton .icono { width: 1.15em; height: 1.15em; transition: transform var(--vr-transicion); }
.boton:hover .icono { transform: translateX(3px); }
.boton--primario { background: var(--vr-azul-accion); color: #fff; box-shadow: var(--vr-brillo-azul); }
.boton--primario:hover { background: var(--vr-azul-accion-hover); color: #fff; transform: translateY(-1px); }
.boton--secundario { background: rgba(255, 255, 255, .8); color: var(--vr-navy-900); border-color: var(--vr-azul-accion); backdrop-filter: blur(6px); }
.boton--secundario .icono { color: var(--vr-azul-accion); }
.boton--secundario:hover { background: var(--vr-azul-100); color: var(--vr-navy-900); }
.boton--grande { min-height: 58px; padding-inline: 2em; font-size: 1.0625rem; }
.boton--compacto { min-height: 42px; padding: .5em 1.25em; font-size: .9375rem; }
.boton--deshabilitado { background: var(--vr-fondo-2); color: var(--vr-texto-2); border-color: var(--vr-borde); cursor: not-allowed; }

/* ── Cabecera del sitio ─────────────────────────────────────────────────── */
.cabecera-sitio {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .86); backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid rgba(214, 226, 240, .7);
}
.cabecera-sitio__fila { display: flex; align-items: center; gap: 24px; min-height: var(--vr-cabecera-alto); }
.cabecera-sitio__logo { flex: none; display: block; }
.cabecera-sitio__logo .logo { height: 44px; width: auto; }
.cabecera-sitio__toggle { display: none; margin-left: auto; background: none; border: 0; padding: 8px; color: var(--vr-navy-900); cursor: pointer; }
.cabecera-sitio__toggle .icono { width: 28px; height: 28px; }

.menu { display: flex; align-items: center; gap: 24px; margin-left: auto; }
.menu__lista { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }
.menu__item { position: relative; }
.menu__grupo { display: flex; align-items: center; }
.menu__enlace {
  display: block; padding: 10px 12px; font-weight: 500; font-size: .9375rem;
  color: var(--vr-navy-900); text-decoration: none; position: relative;
}
.menu__enlace::after {
  content: ""; position: absolute; left: 12px; right: 12px; bottom: 4px; height: 2px;
  background: var(--vr-azul-accion); border-radius: 2px; transform: scaleX(0); transition: transform var(--vr-transicion);
}
.menu__enlace:hover { color: var(--vr-azul-accion); }
.menu__enlace:hover::after, .menu__enlace.es-activo::after { transform: scaleX(1); }
.menu__enlace.es-activo { color: var(--vr-azul-accion); }
.menu__desplegar { background: none; border: 0; padding: 4px; margin-left: -8px; color: var(--vr-navy-900); cursor: pointer; }
.menu__desplegar .icono { width: 16px; height: 16px; transition: transform var(--vr-transicion); }
.submenu {
  position: absolute; top: 100%; left: 0; min-width: 190px; list-style: none; margin: 0; padding: 8px;
  background: #fff; border: 1px solid var(--vr-borde); border-radius: var(--vr-radio-sm); box-shadow: var(--vr-sombra-card-hover);
  opacity: 0; visibility: hidden; transform: translateY(6px); transition: all var(--vr-transicion);
}
.menu__item--sub:hover .submenu, .menu__item--sub:focus-within .submenu, .menu__item--sub.es-abierto .submenu { opacity: 1; visibility: visible; transform: none; }
.submenu__enlace { display: block; padding: 8px 12px; border-radius: 8px; color: var(--vr-navy-900); text-decoration: none; font-size: .9375rem; }
.submenu__enlace:hover, .submenu__enlace.es-activo { background: var(--vr-azul-100); color: var(--vr-navy-900); }

@media (max-width: 1080px) {
  .cabecera-sitio__toggle { display: block; }
  .menu {
    position: fixed; inset: var(--vr-cabecera-alto) 0 auto 0; max-height: calc(100vh - var(--vr-cabecera-alto));
    overflow-y: auto; flex-direction: column; align-items: stretch; gap: 16px; padding: 16px var(--vr-margen) 24px;
    background: #fff; border-bottom: 1px solid var(--vr-borde); box-shadow: var(--vr-sombra-card-hover);
    display: none;
  }
  .menu.es-abierto { display: flex; }
  .menu__lista { flex-direction: column; align-items: stretch; }
  .menu__enlace { padding: 12px 4px; font-size: 1.0625rem; }
  .menu__enlace::after { left: 4px; right: auto; width: 32px; }
  .menu__grupo { justify-content: space-between; }
  .submenu { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: 0; padding: 0 0 0 12px; display: none; }
  .menu__item--sub.es-abierto .submenu { display: block; }
  .menu__item--sub:hover .submenu { display: none; }
  .menu__item--sub.es-abierto:hover .submenu { display: block; }
  .menu__item--sub.es-abierto .menu__desplegar .icono { transform: rotate(180deg); }
  .menu__cta { align-self: flex-start; }
}

/* ── Pie ────────────────────────────────────────────────────────────────── */
.pie { position: relative; isolation: isolate; overflow: hidden; background: var(--vr-navy-900); color: var(--vr-texto-inv-2); padding: 64px 0 32px; margin-top: var(--vr-seccion); }
.pie__decor { position: absolute; inset: 0; z-index: -1; opacity: .5; background: url("../img/decor/circuito.svg") right top / 720px auto no-repeat; }
.pie a { color: var(--vr-texto-inv); text-decoration: none; }
.pie a:hover { color: var(--vr-azul-300); }
.pie__aliados { display: grid; gap: 32px; padding-bottom: 40px; border-bottom: 1px solid rgba(185, 203, 230, .2); }
.pie__titulo { color: var(--vr-azul-300); font-weight: 600; font-size: .875rem; letter-spacing: .06em; text-transform: uppercase; margin-bottom: 12px; }
.pie__base { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px; padding-top: 32px; }
.pie__logo img { height: 44px; width: auto; }
.pie__enlaces, .pie__redes { display: flex; flex-wrap: wrap; gap: 8px 24px; list-style: none; margin: 0; padding: 0; font-size: .9375rem; }

/* Redes sociales: botones circulares que toman el color de cada marca al pasar el cursor */
.pie__redes-bloque { display: flex; align-items: center; gap: 16px; }
.pie__redes-titulo { margin: 0; color: var(--vr-azul-300); font-weight: 600; font-size: .875rem; letter-spacing: .06em; text-transform: uppercase; }
.pie__redes { gap: 12px; }
.red-social {
  --red-hueco: var(--vr-navy-900);
  display: grid; place-items: center; width: 52px; height: 52px; border-radius: 50%;
  color: #fff !important; background: rgba(255, 255, 255, .06); border: 1.5px solid rgba(109, 170, 254, .45);
  box-shadow: 0 0 0 4px rgba(77, 156, 246, .06);
  transition: background var(--vr-transicion), border-color var(--vr-transicion), box-shadow var(--vr-transicion), transform var(--vr-transicion);
}
.red-social__icono { width: 26px; height: 26px; }
.red-social:hover, .red-social:focus-visible { transform: translateY(-3px); border-color: transparent; }
.red-social--instagram:hover, .red-social--instagram:focus-visible {
  background: radial-gradient(circle at 30% 110%, #FDF497 0%, #FD5949 40%, #D6249F 65%, #285AEB 100%);
  box-shadow: 0 8px 24px rgba(214, 36, 159, .45);
}
.red-social--youtube:hover, .red-social--youtube:focus-visible { --red-hueco: #FF0000; background: #FF0000; box-shadow: 0 8px 24px rgba(255, 0, 0, .4); }
.pie__legal { margin: 24px 0 0; font-size: .8125rem; opacity: .8; }

/* ── Aviso de contenido provisional (solo en desarrollo) ────────────────── */
.es-placeholder { outline: 2px dashed rgba(124, 77, 219, .45); outline-offset: -12px; }
.aviso-placeholder {
  position: absolute; top: 14px; right: 18px; z-index: 2; margin: 0; padding: 2px 10px;
  font-size: .75rem; font-weight: 600; color: #fff; background: var(--vr-violeta-600); border-radius: var(--vr-radio-pildora);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}