/* Header Styles - Elementos separados */

/* Logo fijo superior izquierda */
.fixed-logo {
  position: fixed;
  top: var(--spacing-lg);
  left: 50%;
  margin-left: calc(-1 * var(--container-max-width) / 2 + var(--container-padding));
  z-index: 1000;
  transition: all var(--transition-normal);
}

.fixed-logo.hidden {
  opacity: 0;
  visibility: hidden;
  transform: translateY(-20px);
}

.logo-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  color: var(--bg-primary);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-lg);
  transition: transform var(--transition-normal);
  background: rgba(255, 255, 255, 0.15);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-lg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.logo-link:hover {
  transform: scale(1.02);
  background: rgba(255, 255, 255, 0.2);
}

/* WhatsApp fijo superior derecha */
.fixed-whatsapp {
  position: fixed;
  top: var(--spacing-lg);
  right: 50%;
  margin-right: calc(-1 * var(--container-max-width) / 2 + var(--container-padding));
  z-index: 1000;
  transition: all var(--transition-normal);
}

.fixed-whatsapp.hidden {
  opacity: 0;
  visibility: hidden;
  transform: translateY(-20px);
}

.fixed-whatsapp .whatsapp-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: rgba(37, 211, 102, 0.9);
  color: var(--bg-primary);
  text-decoration: none;
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-lg);
  transition: all var(--transition-normal);
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.3);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.fixed-whatsapp .whatsapp-btn:hover {
  background: rgba(18, 140, 126, 0.9);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(37, 211, 102, 0.4);
}

/* Navegación flotante */
.floating-nav {
  position: fixed;
  top: 100px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 999;
  transition: all var(--transition-normal);
  width: calc(100vw - 2 * var(--container-padding));
  max-width: var(--container-max-width);
}

.floating-nav.scrolled {
  top: var(--spacing-lg);
  transform: translate(-50%, 0);
  width: calc(100vw - 2 * var(--container-padding));
  max-width: var(--container-max-width);
}

.nav-content {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--border-radius-xl);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  width: 100%;
  min-height: 50px;
}

.floating-nav.scrolled .nav-content {
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-xl);
  min-height: 50px;
}

/* Logo en navegación (oculto inicialmente) */
.nav-logo {
  display: none;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  color: var(--primary-color);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-base);
  transition: transform var(--transition-normal);
}

.floating-nav.scrolled .nav-logo {
  display: flex;
}

.nav-logo:hover {
  transform: scale(1.02);
}

/* Lista de navegación */
.nav-list {
  display: flex;
  align-items: center;
  justify-content: center;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--spacing-xs);
  height: 100%;
}

.floating-nav.scrolled .nav-list {
  margin-left: var(--spacing-lg);
}

.nav-item {
  margin: 0;
  position: relative;
}

/* Estilos principales para nav-link - consolidados */
.nav-link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  min-height: 32px;
  color: var(--primary-color);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-base);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-md);
  transition: all var(--transition-normal);
  position: relative;
}

.dropdown-icon {
  width: 12px;
  height: 8px;
  flex-shrink: 0;
  transition: transform var(--transition-normal);
}

.nav-item:hover .dropdown-icon {
  transform: rotate(180deg);
}

/* Submenu styles */
.submenu {
  position: absolute;
  top: calc(100% + 15px);
  left: 0;
  min-width: 220px;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: var(--spacing-sm) 0;
  list-style: none;
  margin: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-normal);
  z-index: 1000;
}

.nav-item:hover .submenu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.submenu-item {
  margin: 0;
}

.submenu-link {
  display: block;
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: var(--font-weight-normal);
  font-size: var(--font-size-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  transition: all var(--transition-normal);
  border-bottom: 1px solid rgba(25, 118, 210, 0.05);
}

.submenu-link:hover {
  color: var(--primary-color);
  background-color: rgba(25, 118, 210, 0.08);
  padding-left: var(--spacing-lg);
}

.submenu-item:last-child .submenu-link {
  border-bottom: none;
}

/* Submenu especial para especialidades - múltiples columnas */
.nav-item:nth-child(5) .submenu {
  top: calc(100% + 15px);
  min-width: 720px;
  max-width: 720px;
  padding: var(--spacing-md);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  left: 50%;
  transform: translateX(-50%);
}

.nav-item:nth-child(5):hover .submenu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav-item:nth-child(5) .submenu-item {
  width: 100%;
}

.nav-item:nth-child(5) .submenu-link {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
  border-bottom: 1px solid rgba(25, 118, 210, 0.05);
  border-right: 1px solid rgba(25, 118, 210, 0.05);
}

.nav-item:nth-child(5) .submenu-item:nth-child(3n) .submenu-link {
  border-right: none;
}

.nav-item:nth-child(5) .submenu-link:hover {
  padding-left: var(--spacing-lg);
}


.nav-link:hover {
  color: var(--primary-dark);
  background-color: rgba(25, 118, 210, 0.1);
}

.nav-link.active {
  color: var(--primary-color);
  background-color: rgba(25, 118, 210, 0.15);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--primary-color);
  border-radius: var(--border-radius-full);
}

/* WhatsApp en navegación (oculto inicialmente) */
.nav-whatsapp {
  display: none;
  align-items: center;
  gap: var(--spacing-sm);
  background: #25d366;
  color: var(--bg-primary);
  text-decoration: none;
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-md);
  transition: all var(--transition-normal);
  box-shadow: 0 2px 10px rgba(37, 211, 102, 0.3);
}

.floating-nav.scrolled .nav-whatsapp {
  display: flex;
}

.nav-whatsapp:hover {
  background: #128c7e;
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
}

/* Logo image styles */
.logo-image {
  height: 40px;
  width: auto;
  object-fit: contain;
  flex-shrink: 0;
}

.floating-nav.scrolled .logo-image {
  height: 36px;
}

.whatsapp-icon {
  width: 18px;
  height: 18px;
  color: var(--bg-primary);
  flex-shrink: 0;
}

.whatsapp-text {
  font-weight: var(--font-weight-semibold);
  white-space: nowrap;
}

/* Botón menú móvil */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  transition: background-color var(--transition-normal);
}

.mobile-menu-toggle:hover {
  background-color: rgba(25, 118, 210, 0.1);
}

.hamburger-line {
  width: 24px;
  height: 3px;
  background: var(--primary-color);
  border-radius: var(--border-radius-full);
  transition: all var(--transition-normal);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* Responsive Design */
@media (max-width: 1200px) {
  .nav-list {
    gap: var(--spacing-xs);
  }
  
  .nav-link {
    font-size: calc(var(--font-size-sm) - 1px);
    padding: var(--spacing-xs) calc(var(--spacing-sm) - 2px);
  }
}

@media (max-width: 1024px) {
  .nav-list {
    gap: var(--spacing-md);
  }
  
  .nav-link {
    font-size: var(--font-size-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
  }
  
  /* Especialidades en tablet - 2 columnas */
  .nav-item:nth-child(5) .submenu {
    top: calc(100% + 15px);
    min-width: 480px;
    max-width: 480px;
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .fixed-logo,
  .fixed-whatsapp {
    top: var(--spacing-md);
  }
  
  .fixed-logo {
    left: var(--container-padding);
    margin-left: 0;
  }
  
  .fixed-whatsapp {
    right: var(--container-padding);
    margin-right: 0;
  }
  
  .logo-link,
  .fixed-whatsapp .whatsapp-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
  }
  
  .logo-text {
    font-size: var(--font-size-base);
  }
  
  .whatsapp-text {
    display: none;
  }
  
  .fixed-whatsapp .whatsapp-btn {
    padding: var(--spacing-sm);
    border-radius: 50%;
    width: 45px;
    height: 45px;
    justify-content: center;
  }
  
  .floating-nav {
    top: 85px;
    width: calc(100vw - 2 * var(--container-padding));
    max-width: var(--container-max-width);
  }
  
  .floating-nav.scrolled {
    top: var(--spacing-md);
    width: calc(100vw - 2 * var(--container-padding));
    max-width: var(--container-max-width);
  }
  
  .nav-content {
    padding: var(--spacing-xs) var(--spacing-md);
  }
  
  .mobile-menu-toggle {
    display: flex;
    order: 3;
  }
  
  .nav-list {
    display: none;
    position: fixed;
    top: 80px;
    left: var(--spacing-md);
    right: var(--spacing-md);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    flex-direction: column;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    z-index: 1001;
    gap: var(--spacing-sm);
  }
  
  .nav-list.active {
    display: flex;
  }
  
  .nav-link {
    padding: var(--spacing-md);
    text-align: center;
    font-size: var(--font-size-base);
    border-bottom: 1px solid rgba(25, 118, 210, 0.1);
  }
  
  .nav-link:last-child {
    border-bottom: none;
  }
  
  /* Mobile dropdown styles */
  .nav-item.has-submenu .submenu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    background: rgba(25, 118, 210, 0.05);
    border-radius: var(--border-radius-md);
    margin-top: var(--spacing-xs);
    box-shadow: none;
    border: none;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
  }
  
  .nav-item:hover .submenu,
  .nav-item.mobile-expanded .submenu {
    max-height: 400px;
  }
  
  .submenu-link {
    font-size: var(--font-size-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    color: var(--primary-color);
    border-bottom: 1px solid rgba(25, 118, 210, 0.1);
  }
  
  .submenu-link:hover {
    background-color: rgba(25, 118, 210, 0.15);
    padding-left: var(--spacing-md);
  }
  
  .dropdown-icon {
    margin-left: auto;
  }
  
  /* Especialidades en móvil - volver a columna única */
  .nav-item:nth-child(5) .submenu {
    min-width: auto;
    max-width: none;
    display: block;
    transform: none;
    left: 0;
    width: 100%;
  }
  
  .nav-item:nth-child(5):hover .submenu,
  .nav-item:nth-child(5).mobile-expanded .submenu {
    transform: none;
  }
  
  .nav-item:nth-child(5) .submenu-link {
    border-right: none;
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
  }
  
  .floating-nav.scrolled .nav-whatsapp {
    display: none;
  }
}

@media (max-width: 480px) {
  .logo-text {
    display: none;
  }
  
  .logo-image {
    height: 35px;
  }
  
  .fixed-whatsapp .whatsapp-btn {
    width: 40px;
    height: 40px;
  }
  
  .whatsapp-icon {
    width: 16px;
    height: 16px;
  }
  
  .floating-nav {
    top: 75px;
    width: calc(100vw - 2 * var(--container-padding));
    max-width: var(--container-max-width);
  }
  
  .nav-content {
    padding: var(--spacing-xs) var(--spacing-sm);
  }
}