/* ===== NAVEGACIÓN MODERNA - AyudaMat ===== */

/* Variables específicas para navegación */
:root {
  --nav-height: 80px;
  --nav-bg: rgba(15, 23, 42, 0.95);
  --nav-bg-scrolled: rgba(15, 23, 42, 0.98);
  --nav-border: rgba(14, 165, 233, 0.2);
  --nav-shadow: 0 8px 32px rgba(30, 58, 138, 0.3);
  --nav-backdrop: blur(20px);
  --nav-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Navegación principal */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: var(--nav-bg);
  backdrop-filter: var(--nav-backdrop);
  -webkit-backdrop-filter: var(--nav-backdrop);
  border-bottom: 1px solid var(--nav-border);
  z-index: 1002; /* ✅ CORREGIDO: Mayor que promo-bar (1001) */
  transition: var(--nav-transition);
  transform: translateY(0);
}

/* Estado cuando se hace scroll */
.navbar.scrolled {
  background: var(--nav-bg-scrolled);
  box-shadow: var(--nav-shadow);
  border-bottom-color: rgba(14, 165, 233, 0.3);
}

/* Estado oculto cuando se hace scroll hacia abajo */
.navbar.hidden {
  transform: translateY(-100%);
}

/* Contenedor de navegación */
.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  padding: 0 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

/* Logo mejorado */
.logo {
  font-size: 1.75rem;
  font-weight: 800;
  color: #ffffff;
  text-decoration: none;
  background: linear-gradient(135deg, #0ea5e9 0%, #06b6d4 50%, #0891b2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  transition: var(--nav-transition);
  letter-spacing: -0.5px;
  z-index: 1003; /* ✅ CORREGIDO: Asegurar visibilidad del logo */
}

.logo::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #0ea5e9, #06b6d4);
  transition: width 0.3s ease;
}

.logo:hover::after {
  width: 100%;
}

.logo:hover {
  transform: scale(1.05);
  filter: brightness(1.2);
}

/* Menú principal */
.nav-menu {
  display: flex;
  list-style: none;
  gap: 0.5rem;
  align-items: center;
  margin: 0;
  padding: 0;
}

.nav-menu li {
  position: relative;
}

/* Enlaces de navegación */
.nav-link {
  display: block;
  color: #ffffff;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.75rem 1.25rem;
  border-radius: 12px;
  transition: var(--nav-transition);
  position: relative;
  overflow: hidden;
  letter-spacing: 0.3px;
}

/* Efecto de fondo en hover */
.nav-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.1) 0%, rgba(6, 182, 212, 0.1) 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
  border-radius: 12px;
}

/* Efecto de brillo */
.nav-link::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.nav-link:hover::before {
  opacity: 1;
}

.nav-link:hover::after {
  left: 100%;
}

.nav-link:hover {
  color: #06b6d4;
  transform: translateY(-2px);
  text-shadow: 0 0 10px rgba(6, 182, 212, 0.5);
}

/* Enlace activo */
.nav-link.active {
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.2) 0%, rgba(6, 182, 212, 0.2) 100%);
  color: #06b6d4;
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

/* Botón WhatsApp mejorado */
.btn-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
  color: #ffffff;
  text-decoration: none;
  border-radius: 25px;
  font-weight: 600;
  font-size: 0.9rem;
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
  transition: var(--nav-transition);
  position: relative;
  overflow: hidden;
  margin-left: 1rem;
}

.btn-whatsapp::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.5s ease;
}

.btn-whatsapp:hover::before {
  left: 100%;
}

.btn-whatsapp:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.6);
}

.btn-whatsapp i {
  font-size: 1.1rem;
  animation: pulse-whatsapp 2s infinite;
}

@keyframes pulse-whatsapp {
  0% { transform: scale(1); }
  50% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

/* Botón menú móvil */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: #ffffff;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 8px;
  transition: var(--nav-transition);
  position: relative;
  z-index: 1003; /* ✅ CORREGIDO: Asegurar visibilidad */
}

.mobile-menu-btn:hover {
  background: rgba(14, 165, 233, 0.2);
  transform: scale(1.1);
}

/* ✅ CORREGIDO: Estilos para el icono hamburguesa animado */
.hamburger {
  display: flex;
  flex-direction: column;
  width: 20px;
  height: 16px;
  justify-content: space-between;
  cursor: pointer;
}

.hamburger-line {
  width: 100%;
  height: 2px;
  background-color: #ffffff;
  transition: all 0.3s ease;
  transform-origin: center;
}

/* Animación del menú hamburguesa */
.mobile-menu-btn.active .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-btn.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* Fallback para iconos Font Awesome */
.mobile-menu-btn .fas {
  transition: transform 0.3s ease;
}

.mobile-menu-btn.active .fa-bars {
  transform: rotate(90deg);
}

/* Overlay para menú móvil */
.nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(10px);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 1001; /* ✅ CORREGIDO: Entre navbar y menú */
}

.nav-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ===== RESPONSIVE DESIGN ===== */

/* Tablet */
@media (max-width: 1024px) {
  .nav-container {
    padding: 0 1.5rem;
  }
  
  .nav-menu {
    gap: 0.25rem;
  }
  
  .nav-link {
    padding: 0.6rem 1rem;
    font-size: 0.9rem;
  }
  
  .btn-whatsapp {
    padding: 0.6rem 1.25rem;
    font-size: 0.85rem;
  }
}

/* ✅ CORREGIDO: Móvil - Navegación funcional */
@media (max-width: 768px) {
  :root {
    --nav-height: 70px;
  }
  
  .navbar {
    z-index: 1002; /* ✅ Mantener por encima de todo */
  }
  
  .nav-container {
    padding: 0 1rem;
    position: relative; /* ✅ CORREGIDO: Contexto de posicionamiento */
  }
  
  .logo {
    font-size: 1.5rem;
    z-index: 1003; /* ✅ Logo siempre visible */
  }
  
  .mobile-menu-btn {
    display: block;
    z-index: 1003; /* ✅ Botón siempre visible */
  }
  
  .nav-menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--nav-height));
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.98) 0%, rgba(30, 41, 59, 0.98) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px); /* ✅ Safari support */
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    gap: 0;
    padding: 2rem 1rem;
    transform: translateX(-100%); /* ✅ Oculto por defecto */
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
    z-index: 1002; /* ✅ CORREGIDO: Por encima del overlay */
    
    /* ✅ CORREGIDO: Fallbacks para mejor compatibilidad */
    -webkit-transform: translateX(-100%);
    -moz-transform: translateX(-100%);
    -ms-transform: translateX(-100%);
  }
  
  .nav-menu.active {
    transform: translateX(0); /* ✅ Visible cuando activo */
    -webkit-transform: translateX(0);
    -moz-transform: translateX(0);
    -ms-transform: translateX(0);
  }
  
  .nav-menu li {
    width: 100%;
    margin-bottom: 0.5rem;
  }
  
  .nav-link {
    width: 100%;
    padding: 1rem 1.5rem;
    font-size: 1.1rem;
    border-radius: 12px;
    border: 1px solid rgba(14, 165, 233, 0.2);
    background: rgba(255, 255, 255, 0.05);
    text-align: center;
    margin-bottom: 0.5rem;
    display: block; /* ✅ CORREGIDO: Asegurar display */
    opacity: 1; /* ✅ CORREGIDO: Asegurar opacidad */
  }
  
  .nav-link:hover {
    background: rgba(14, 165, 233, 0.2);
    border-color: rgba(14, 165, 233, 0.4);
    transform: translateY(0) scale(1.02);
  }
  
  .btn-whatsapp {
    width: 100%;
    justify-content: center;
    padding: 1.25rem;
    font-size: 1.1rem;
    margin: 1rem 0 0 0;
    border-radius: 15px;
  }
}

/* Móvil pequeño */
@media (max-width: 480px) {
  .nav-container {
    padding: 0 0.75rem;
  }
  
  .logo {
    font-size: 1.35rem;
  }
  
  .nav-menu {
    padding: 1.5rem 0.75rem;
  }
  
  .nav-link {
    padding: 0.875rem 1.25rem;
    font-size: 1rem;
  }
}

/* ✅ CORREGIDO: Navegación lateral alternativa (fallback) */
@media (max-width: 768px) {
  /* Indicadores de navegación lateral (opcional) */
  .nav-indicators {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1001;
    display: flex;
    flex-direction: column;
    gap: 10px;
  }
  
  .indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(14, 165, 233, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
  }
  
  .indicator.active {
    background: #06b6d4;
    transform: scale(1.5);
  }
}

/* Animaciones de entrada */
@keyframes slideInFromTop {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Aplicar animaciones al cargar */
.navbar {
  animation: slideInFromTop 0.6s ease-out;
}

.nav-menu.active .nav-link {
  animation: fadeInScale 0.4s ease-out forwards;
}

.nav-menu.active .nav-link:nth-child(1) { animation-delay: 0.1s; }
.nav-menu.active .nav-link:nth-child(2) { animation-delay: 0.15s; }
.nav-menu.active .nav-link:nth-child(3) { animation-delay: 0.2s; }
.nav-menu.active .nav-link:nth-child(4) { animation-delay: 0.25s; }
.nav-menu.active .nav-link:nth-child(5) { animation-delay: 0.3s; }
.nav-menu.active .nav-link:nth-child(6) { animation-delay: 0.35s; }
.nav-menu.active .nav-link:nth-child(7) { animation-delay: 0.4s; }

/* Indicador de página activa mejorado */
.nav-link.active::before {
  opacity: 1;
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.3) 0%, rgba(6, 182, 212, 0.3) 100%);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 6px;
  height: 6px;
  background: #06b6d4;
  border-radius: 50%;
  box-shadow: 0 0 10px rgba(6, 182, 212, 0.8);
}

/* Efecto de partículas en hover del logo */
.logo:hover {
  position: relative;
}

.logo:hover::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.3) 0%, transparent 70%);
  border-radius: 50%;
  animation: pulse-glow 1.5s infinite;
}

@keyframes pulse-glow {
  0% { transform: translate(-50%, -50%) scale(1); opacity: 0.7; }
  50% { transform: translate(-50%, -50%) scale(1.2); opacity: 0.3; }
  100% { transform: translate(-50%, -50%) scale(1); opacity: 0.7; }
}

/* ✅ CORREGIDO: Asegurar visibilidad en todos los dispositivos */
@media screen and (max-width: 768px) {
  .navbar {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
  }
  
  .nav-container {
    display: flex !important;
  }
  
  .logo,
  .mobile-menu-btn {
    display: block !important;
    visibility: visible !important;
  }
}

/* ✅ DEBUGGING: Estilos temporales para identificar problemas */
/*
.navbar {
  border: 2px solid red !important;
}

.nav-container {
  border: 2px solid blue !important;
}

.mobile-menu-btn {
  border: 2px solid green !important;
}
*/