/* UG – Header: cabecera azul marino fija, igual en todas las páginas. */
.ug-nav { position: sticky; top: 0; z-index: 1000; height: var(--ug-header-h); background: var(--navy); border-bottom: 1px solid rgba(255, 255, 255, .08); font-family: var(--font-sans); transition: box-shadow .3s ease, background-color .3s ease; }
/* Con la barra de administración de WordPress visible, la cabecera se pega debajo de ella */
body.admin-bar .ug-nav { top: 32px; }
@media (max-width: 782px) { body.admin-bar .ug-nav { top: 46px; } }
@media (max-width: 600px) { body.admin-bar .ug-nav { top: 0; } }
.ug-nav.is-scrolled { background: rgba(7, 27, 63, .94); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); box-shadow: 0 10px 30px -18px rgba(4, 18, 44, .7); }

.ug-nav-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.ug-nav-logo { display: block; flex-shrink: 0; }
.ug-nav .ug-nav-logo img { height: 38px !important; width: auto !important; max-width: none !important; display: block; }
.ug-nav-links { display: flex; gap: 28px; font-size: 15px; font-weight: 500; }
.ug-nav-links a { color: var(--on-dark-muted); text-decoration: none; transition: color .2s; }
.ug-nav-links a:hover, .ug-nav-links a[aria-current="page"] { color: var(--white); }
.ug-nav-actions { display: flex; align-items: center; gap: 10px; }
.ug-nav-actions .short { display: none; }

.ug-cart-btn { position: relative; width: 44px; height: 44px; border-radius: 10px; border: 1px solid rgba(255, 255, 255, .16); background: rgba(255, 255, 255, .04); color: var(--white); display: inline-flex; align-items: center; justify-content: center; cursor: pointer; padding: 0; transition: background-color .2s ease, border-color .2s ease; }
.ug-cart-btn:hover { background: rgba(255, 255, 255, .1); border-color: rgba(255, 255, 255, .3); }
.ug-cart-count { position: absolute; top: -6px; right: -6px; min-width: 20px; height: 20px; padding: 0 5px; border-radius: 999px; background: var(--red); color: var(--white); font: 600 11px/20px var(--font-mono); text-align: center; box-shadow: 0 0 0 2px var(--navy); }
.ug-cart-count[hidden] { display: none; }
.ug-cart-btn.is-bump .ug-cart-count { animation: ugBump .5s ease; }
@keyframes ugBump { 30% { transform: scale(1.35); } 100% { transform: none; } }

.ug-nav-toggle { display: none; width: 44px; height: 44px; border-radius: 10px; border: 1px solid rgba(255, 255, 255, .2); background: transparent; cursor: pointer; flex-direction: column; align-items: center; justify-content: center; gap: 5px; padding: 0; }
.ug-nav-toggle span { display: block; width: 18px; height: 2px; border-radius: 2px; background: var(--white); transition: transform .25s ease, opacity .2s ease; }
.ug-nav.is-open .ug-nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.ug-nav.is-open .ug-nav-toggle span:nth-child(2) { opacity: 0; }
.ug-nav.is-open .ug-nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 1080px) { .ug-nav-links { gap: 20px; } }
@media (max-width: 960px) {
  .ug-nav .ug-nav-logo img { height: 32px !important; }
  .ug-nav .ug-btn { min-height: 42px; padding: 0 14px; font-size: 14px; }
  .ug-nav-toggle { display: inline-flex; }
  .ug-nav-links { position: absolute; left: 0; right: 0; top: 100%; flex-direction: column; gap: 2px; padding: 10px 16px 20px; background: var(--navy); border-bottom: 1px solid rgba(255, 255, 255, .1); box-shadow: 0 24px 40px -20px rgba(0, 0, 0, .6); opacity: 0; visibility: hidden; transform: translateY(-8px); transition: opacity .25s ease, transform .25s ease, visibility .25s; }
  .ug-nav.is-open .ug-nav-links { opacity: 1; visibility: visible; transform: none; }
  .ug-nav-links a { padding: 14px 12px; border-radius: 8px; font-size: 17px; }
  .ug-nav-links a:hover, .ug-nav-links a[aria-current="page"] { background: rgba(255, 255, 255, .05); }
}
@media (max-width: 420px) {
  .ug-nav-actions { gap: 8px; }
  .ug-nav-actions .long { display: none; }
  .ug-nav-actions .short { display: inline; }
  .ug-cart-btn, .ug-nav-toggle { width: 42px; height: 42px; }
}
@media (prefers-reduced-motion: reduce) {
  .ug-nav, .ug-nav-links, .ug-nav-toggle span { transition: none; }
  .ug-cart-btn.is-bump .ug-cart-count { animation: none; }
}

/* Páginas de cursos (Tutor LMS): su contenido empieza sin margen, así que la cabecera deja un espacio debajo. */
body:is(.single-courses, .post-type-archive-courses, .tax-course-category, .tax-course-tag) .ug-nav { margin-bottom: clamp(32px, 4vw, 56px); }