/* Cabecera común y megamenú de landings. */

.skip { position: absolute; left: var(--space-4); top: -4rem; z-index: 1100; background: var(--color-white); color: var(--color-navy); padding: .6rem 1rem; border-radius: var(--radius); font-weight: 600; text-decoration: none; transition: top .15s; }
.skip:focus { top: var(--space-3); }
[id] { scroll-margin-top: 84px; }

/* Con ScrollSmoother activo (clase puesta por smooth.js) la cabecera sale del flujo y el contenido deja su hueco. */
.smooth-on .site-header { position: fixed; top: 0; left: 0; right: 0; }
.smooth-on #smooth-content { padding-top: var(--header-h, 77px); }
.site-header { position: sticky; top: 0; z-index: 900; background: var(--bg-dark); color: var(--fg-on-dark); border-bottom: 1px solid var(--line-on-dark); }
.site-header__bar { display: flex; align-items: center; gap: var(--space-5); min-height: 76px; padding-block: var(--space-3); }
.site-header__logo { display: block; line-height: 0; flex: none; }
.site-header__logo img { width: 56px; height: 56px; display: block; }
.site-header__brand { font-size: var(--fs-label); letter-spacing: .24em; text-transform: uppercase; color: rgba(255, 255, 255, .72); text-decoration: none; }
a.site-header__brand:hover { color: var(--color-teal); }

/* ---------- Acciones de la cabecera ---------- */
.site-header__actions { margin-left: auto; display: flex; align-items: center; gap: var(--space-3); }
.site-header a.btn { color: var(--color-navy); }
.site-header a.btn:hover { background: var(--color-white); border-color: var(--color-white); color: var(--color-navy); }

.menu-btn { display: inline-grid; place-items: center; width: 40px; height: 40px; padding: 0; background: transparent; border: 0; border-radius: var(--radius); color: var(--fg-on-dark); cursor: pointer; transition: color .15s, background .15s; }
.menu-btn:hover { background: rgba(255, 255, 255, .1); color: var(--color-teal); }
.menu-btn[aria-expanded="true"] { background: var(--color-white); color: var(--color-navy); }
.menu-btn svg { grid-area: 1 / 1; width: 28px; height: 28px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.menu-btn__close { display: none; }
.menu-btn[aria-expanded="true"] .menu-btn__open { display: none; }
.menu-btn[aria-expanded="true"] .menu-btn__close { display: block; }

/* ---------- Megamenú ---------- */
.mega { position: absolute; left: 0; right: 0; top: 100%; background: var(--bg-dark); border-top: 1px solid var(--line-on-dark); box-shadow: 0 24px 48px rgba(0, 0, 0, .35); }
.mega[hidden] { display: none; }
.mega::before { content: ""; position: absolute; left: 0; right: 0; top: -1px; height: 4px; background: linear-gradient(90deg, var(--youth-blue), var(--youth-teal), var(--youth-green)); }
.mega__inner { display: grid; gap: var(--space-7); padding-block: var(--space-7); grid-template-columns: minmax(0, 1fr) minmax(0, 2.4fr); }
.mega__intro .eyebrow { margin: 0 0 var(--space-3); font-size: .875rem; letter-spacing: .24em; text-transform: uppercase; color: var(--color-teal); }
.mega__title { margin: 0 0 var(--space-3); font-family: var(--font-display); font-size: var(--fs-h3); line-height: 1.1; color: var(--fg-on-dark); }
.mega__text { margin: 0; color: var(--fg-on-dark-muted); max-width: 30ch; }
.mega__grid { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-4); grid-template-columns: repeat(2, minmax(0, 1fr)); }

.mcard { border-left: 4px solid var(--c); background: rgba(255, 255, 255, .05); border-radius: 0 var(--radius) var(--radius) 0; transition: background .2s, transform .25s cubic-bezier(.2, .7, .2, 1); }
.mcard__link { display: flex; align-items: center; gap: var(--space-4); padding: var(--space-4) var(--space-5); color: var(--fg-on-dark); text-decoration: none; height: 100%; }
.mcard__num { flex: none; font-family: var(--font-display); font-size: 2.25rem; line-height: 1; color: var(--c); min-width: 1.4ch; }
.mcard__body { display: flex; flex-direction: column; gap: 2px; min-width: 0; flex: 1; }
.mcard__title { font-family: var(--font-display); font-size: 1.25rem; line-height: 1.2; color: var(--fg-on-dark); }
.mcard__blurb { font-size: var(--fs-small); color: var(--fg-on-dark-muted); }
.mcard__go svg { width: 20px; height: 20px; stroke: var(--color-teal); fill: none; stroke-width: 2.2; stroke-linecap: round; transition: transform .25s; }
a.mcard__link:hover { color: var(--fg-on-dark); }
.mcard:has(a.mcard__link:hover), .mcard:has(a.mcard__link:focus-visible) { background: rgba(255, 255, 255, .11); transform: translateX(4px); }
a.mcard__link:hover .mcard__go svg { transform: translateX(4px); }
.mcard.is-current { background: rgba(255, 255, 255, .12); }
.mcard--soon { opacity: .62; }
.mcard--soon .mcard__link { cursor: default; }
.mcard__chip { flex: none; padding: 3px 9px; border: 1px solid rgba(255, 255, 255, .4); border-radius: 99px; font-size: .6875rem; text-transform: uppercase; letter-spacing: var(--ls-label); }

@keyframes megaIn { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: none; } }
@keyframes cardIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@keyframes megaOut { from { opacity: 1; transform: none; } to { opacity: 0; transform: translateY(-8px); } }
@media (prefers-reduced-motion: no-preference) {
  .mega:not([hidden]) { animation: megaIn .22s ease-out both; }
  .mega:not([hidden]) .mcard { animation: cardIn .35s cubic-bezier(.2, .7, .2, 1) both; }
  .mega:not([hidden]) .mcard:nth-child(2) { animation-delay: .05s; } .mega:not([hidden]) .mcard:nth-child(3) { animation-delay: .1s; }
  .mega:not([hidden]) .mcard:nth-child(4) { animation-delay: .15s; } .mega:not([hidden]) .mcard:nth-child(5) { animation-delay: .2s; }
  .mega.is-closing:not([hidden]) { animation: megaOut .22s ease-in both; }
  .mega.is-closing:not([hidden]) .mcard { animation: none; }
}

/* ---------- Pantallas pequeñas ---------- */
.mega { max-height: calc(100vh - 76px); overflow-y: auto; overscroll-behavior: contain; }
/* Con el menú abierto la página no se desplaza (menu.js también pausa el scroll suavizado) */
html { scrollbar-gutter: stable; } /* reserva el hueco de la barra: al bloquear el scroll la página no salta */
html.menu-open { overflow: hidden; }
@media (max-width: 55.99rem) {
  .site-header__brand { display: none; }
  .mega__inner { display: block; padding-block: var(--space-5) var(--space-6); }
  .mega__intro { margin-bottom: var(--space-4); }
  .mega__title { font-size: var(--fs-h4); }
  .mega__text { display: none; }
  .mega__grid { grid-template-columns: 1fr; gap: var(--space-3); }
  .mcard__link { padding: var(--space-3) var(--space-4); }
  .mcard__num { font-size: 1.75rem; }
  .mcard__title { font-size: 1.0625rem; }
}
@media (max-width: 35.99rem) {
  /* El botón de la encuesta sigue visible fuera del menú, más compacto */
  .site-header__bar { gap: var(--space-3); }
  .site-header__actions { gap: var(--space-2); }
  .site-header__cta { padding: 12px 14px; font-size: .625rem; white-space: nowrap; }
}
@media (min-width: 56rem) and (max-width: 71.99rem) {
  .mega__inner { grid-template-columns: 1fr; gap: var(--space-5); }
  .mega__text { max-width: 60ch; }
}