/* Botones del header — estilos modernos y accesibles */
/* Remove empty :root ruleset since it's not being used */
  /* sin redefinir colores: usa los del main.css */
/* Remove empty ruleset */

.site-header .nav-actions .btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 42px;
  padding: 14px 24px;
  border-radius: 16px;
  border: none;
  background: linear-gradient(135deg, #ffd700 0%, #ffed4e 50%, #ffd700 100%);
  color: #1a1a1a;
  font-weight: 600;
  font-size: 16px;
  letter-spacing: 0.5px;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3), 0 2px 8px rgba(0, 0, 0, 0.1);
  will-change: transform;
}

.site-header .nav-actions .btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  transition: left 0.6s;
}

.site-header .nav-actions .btn.btn-lg {
  height: 44px;
  padding: 16px 28px;
  border-radius: 20px;
  font-size: 18px;
  font-weight: 700;
}

.site-header .nav-actions .btn:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 25px rgba(255, 215, 0, 0.4), 0 4px 15px rgba(0, 0, 0, 0.15);
  background: linear-gradient(135deg, #ffed4e 0%, #ffd700 50%, #ffed4e 100%);
}

.site-header .nav-actions .btn:hover::before {
  left: 100%;
}

.site-header .nav-actions .btn:active {
  transform: translateY(-1px) scale(0.98);
  transition: all 0.1s;
}

/* Variante acento */
.site-header .nav-actions .btn.btn-accent {
  background: linear-gradient(135deg, #ffd700 0%, #ffed4e 50%, #ffd700 100%);
  color: #1a1a1a;
  box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3), 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* Variante contorno */
.site-header .nav-actions .btn.btn-outline {
  background: transparent;
  border: 2px solid #ffd700;
  color: #ffd700;
  box-shadow: 0 4px 15px rgba(255, 215, 0, 0.2);
}

.site-header .nav-actions .btn.btn-outline:hover {
  background: linear-gradient(135deg, #ffd700 0%, #ffed4e 50%, #ffd700 100%);
  color: #1a1a1a;
  border-color: #ffd700;
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 25px rgba(255, 215, 0, 0.4), 0 4px 15px rgba(0, 0, 0, 0.15);
}

/* Accesibilidad: foco visible */
.site-header .nav-actions .btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  box-shadow: 0 0 0 3px rgba(255,212,0,.35);
}

/* Ripple effect */
.site-header .nav-actions .btn .ripple {
  position: absolute;
  left: 0; top: 0;
  width: 20px; height: 20px;
  transform: translate(-50%, -50%) scale(0);
  border-radius: 999px;
  pointer-events: none;
  opacity: .25;
  background: currentColor;
  animation: header-btn-ripple .6s ease-out;
}
.site-header .nav-actions .btn.btn-accent .ripple { background: rgba(255,212,0,.35); }
.site-header .nav-actions .btn.btn-outline .ripple { background: rgba(255,255,255,.35); }

@keyframes header-btn-ripple {
  from { transform: translate(-50%, -50%) scale(.15); opacity: .35; }
  to   { transform: translate(-50%, -50%) scale(8); opacity: 0; }
}

/* Reduced motion: desactiva transformaciones fuertes */
@media (prefers-reduced-motion: reduce) {
  .site-header .nav-actions .btn { transition: background-color .2s ease, border-color .2s ease, color .2s ease; }
  .site-header .nav-actions .btn:hover,
  .site-header .nav-actions .btn:active { transform: none; box-shadow: none; }
}