/* ============================================================
   BICENTENARIX — Navegación superior unificada (componente único)
   ------------------------------------------------------------
   Un solo componente reutilizable en las tres experiencias:
     · Encuentra trabajo   (/)              — personas
     · Contrata talento    (/empresa)       — empresas
     · Explora convocatorias (/convocatorias) — vacantes
     · Revisión CV live (/cv-live) — TikTok Live

   Mismo marcado, mismo CSS. Cambia solo el contenido dinámico:
   la pestaña activa (.is-active + aria-current) y el destino del CTA.
   Colores de marca explícitos para funcionar sobre cualquier hoja
   de página (styles.css / empresa.css / convocatorias).
   ============================================================ */

.unav {
  --un-ink: #1A1B33;
  --un-navy: #303374;
  --un-blue: #3961AA;
  --un-purple: #5A3C8F;
  --un-orange: #F08424;
  --un-sky: #47B6E8;
  --un-line: #E4E7F2;
  --un-muted: #5C6079;
  --un-font-title: 'Chillax', 'Segoe UI', system-ui, sans-serif;
  --un-font-body: 'General Sans', 'Segoe UI', system-ui, sans-serif;

  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--un-line);
}

.unav__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 18px;
}

/* ---- Marca ---- */
.unav__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
  font-family: var(--un-font-title);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.5px;
  color: var(--un-purple);
  line-height: 1;
}
.unav__brand img { width: 32px; height: 32px; display: block; }
.unav__brand b { font-weight: 700; }
.unav__brand span { color: var(--un-orange); }

/* ---- Pestañas (3 audiencias) ---- */
.unav__tabs {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 6px;
  flex: 1;
  justify-content: center;
}

.unav__tab {
  display: flex;
  flex-direction: column;
  gap: 1px;
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 12px;
  border: 1.5px solid transparent;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
  line-height: 1.15;
}
.unav__tab:hover { background: #F4F6FC; transform: translateY(-1px); }

.unav__tab-title {
  font-family: var(--un-font-title);
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--un-ink);
  letter-spacing: 0.2px;
}
.unav__tab-sub {
  font-family: var(--un-font-body);
  font-size: 0.74rem;
  color: var(--un-muted);
}

/* Pestaña activa: subrayado de marca + realce sutil */
.unav__tab.is-active {
  background: #F2F5FF;
  border-color: #DCE3F7;
}
.unav__tab.is-active .unav__tab-title { color: var(--un-navy); }
.unav__tab.is-active .unav__tab-sub { color: var(--un-blue); }

.unav__tab:focus-visible {
  outline: 3px solid var(--un-orange);
  outline-offset: 2px;
}

/* ---- CTA contextual ---- */
.unav__cta {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--un-orange);
  color: #fff;
  text-decoration: none;
  font-family: var(--un-font-body);
  font-weight: 600;
  font-size: 0.9rem;
  line-height: 1;
  padding: 11px 20px;
  border-radius: 10px;
  white-space: nowrap;
  transition: background 0.2s ease, transform 0.2s ease;
}
.unav__cta:hover { background: #d6711c; transform: translateY(-1px); color: #fff; }
.unav__cta:focus-visible { outline: 3px solid var(--un-navy); outline-offset: 2px; }

/* ============================================================
   Responsive — la barra se reorganiza, nunca se rompe
   ============================================================ */
@media (max-width: 980px) {
  .unav__inner { flex-wrap: wrap; gap: 10px 14px; }
  .unav__tabs { order: 3; width: 100%; justify-content: stretch; gap: 6px; }
  .unav__tab { flex: 1; align-items: center; text-align: center; padding: 8px 10px; }
}

@media (max-width: 760px) {
  .unav__tabs {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .unav__inner { padding: 9px 14px; }
  .unav__brand { font-size: 1.1rem; }
  .unav__tab-sub { display: none; }
  .unav__tab-title { font-size: 0.82rem; }
  .unav__cta { padding: 9px 14px; font-size: 0.84rem; }
}

@media (max-width: 400px) {
  .unav__brand span { display: inline; }
  .unav__cta { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .unav__tab, .unav__cta { transition: none; }
}