Menú Deslizante

.sliding-menu-demo {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 380px;
  border-radius: 16px;
  padding: 30px;
  color: white;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  overflow: hidden;
}

.demo-content {
  text-align: center;
  margin-bottom: 30px;
}

.demo-content h2 {
  margin: 0 0 12px 0;
  font-size: 24px;
  font-weight: 700;
}

.demo-content p {
  margin: 0 0 20px 0;
  opacity: 0.9;
  line-height: 1.6;
}

.demo-controls h3 {
  margin: 0 0 16px 0;
  font-size: 16px;
  font-weight: 600;
}

.control-group {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
}

.control-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
}

.control-section label {
  font-size: 14px;
  font-weight: 500;
  opacity: 0.9;
}

.control-buttons {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.control-btn,
.style-btn {
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 6px;
  color: white;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.control-btn:hover,
.control-btn.active,
.style-btn:hover,
.style-btn.active {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-1px);
}

.menu-container {
  background: white;
  border-radius: 12px;
  margin-bottom: 20px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  position: relative;
  height: 280px;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: #ffffff;
  border-bottom: 1px solid #e5e7eb;
  position: relative;
  z-index: 10;
}

.menu-trigger {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.3s ease;
}

.menu-trigger:hover {
  background: rgba(59, 130, 246, 0.1);
}

.hamburger-icon {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.hamburger-icon .line {
  width: 18px;
  height: 2px;
  background: #374151;
  transition: all 0.3s ease;
}

.menu-trigger.active .hamburger-icon .line:nth-child(1) {
  transform: rotate(45deg) translate(4px, 4px);
}

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

.menu-trigger.active .hamburger-icon .line:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -4px);
}

.app-title {
  font-size: 18px;
  font-weight: 600;
  color: #1f2937;
  margin: 0;
}

.header-actions {
  display: flex;
  gap: 8px;
}

.action-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.3s ease;
}

.action-btn:hover {
  background: rgba(59, 130, 246, 0.1);
}

.action-btn .icon {
  font-size: 16px;
}

.badge {
  position: absolute;
  top: -2px;
  right: -2px;
  background: #ef4444;
  color: white;
  font-size: 10px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 10px;
  min-width: 16px;
  text-align: center;
}

.main-content {
  padding: 24px;
  background: #f9fafb;
  height: calc(100% - 73px);
  overflow-y: auto;
}

.content-section h2 {
  margin: 0 0 12px 0;
  color: #1f2937;
  font-size: 20px;
  font-weight: 600;
}

.content-section p {
  margin: 0 0 24px 0;
  color: #6b7280;
  line-height: 1.6;
}

.feature-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.feature-card {
  background: white;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.card-icon {
  font-size: 32px;
  margin-bottom: 12px;
}

.feature-card h3 {
  margin: 0 0 8px 0;
  color: #1f2937;
  font-size: 16px;
  font-weight: 600;
}

.feature-card p {
  margin: 0;
  color: #6b7280;
  font-size: 14px;
  line-height: 1.5;
}

.sliding-menu {
  position: absolute;
  background: #ffffff;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  z-index: 1000;
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
}

/* Direcciones del Menú */
.left-menu {
  top: 0;
  left: 0;
  width: 280px;
  height: 100%;
  transform: translateX(-100%);
}

.right-menu {
  top: 0;
  right: 0;
  width: 280px;
  height: 100%;
  transform: translateX(100%);
}

.top-menu {
  top: 0;
  left: 0;
  width: 100%;
  height: 200px;
  transform: translateY(-100%);
}

.bottom-menu {
  bottom: 0;
  left: 0;
  width: 100%;
  height: 200px;
  transform: translateY(100%);
}

/* Estilos del Menú */
.overlay-style.menu-open {
  transform: translate(0, 0);
}

.push-style.menu-open {
  transform: translate(0, 0);
}

.push-style.menu-open ~ .main-content {
  transform: translateX(280px);
}

.push-style.right-menu.menu-open ~ .main-content {
  transform: translateX(-280px);
}

.reveal-style {
  z-index: 5;
}

.reveal-style.menu-open ~ .main-content {
  transform: translateX(280px);
}

.reveal-style.right-menu.menu-open ~ .main-content {
  transform: translateX(-280px);
}

.menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px;
  border-bottom: 1px solid #e5e7eb;
  background: #f9fafb;
}

.user-profile {
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: white;
}

.user-info {
  display: flex;
  flex-direction: column;
}

.user-name {
  font-weight: 600;
  color: #1f2937;
  font-size: 14px;
}

.user-email {
  font-size: 12px;
  color: #6b7280;
}

.menu-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.3s ease;
}

.menu-close:hover {
  background: rgba(59, 130, 246, 0.1);
}

.close-icon {
  font-size: 16px;
  color: #6b7280;
}

.menu-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.menu-nav {
  flex: 1;
  padding: 16px 0;
}

.menu-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.menu-item {
  margin: 0;
}

.menu-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  text-decoration: none;
  color: #374151;
  transition: all 0.3s ease;
  position: relative;
}

.menu-link:hover,
.menu-link.active {
  background: rgba(59, 130, 246, 0.05);
  color: #3b82f6;
}

.menu-link.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: #3b82f6;
}

.menu-icon {
  font-size: 18px;
  width: 20px;
  text-align: center;
}

.menu-text {
  flex: 1;
  font-weight: 500;
}

.menu-badge {
  background: #10b981;
  color: white;
  font-size: 10px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 10px;
}

.menu-count {
  background: #e5e7eb;
  color: #6b7280;
  font-size: 12px;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: 12px;
  min-width: 20px;
  text-align: center;
}

.menu-footer {
  padding: 16px 20px;
  border-top: 1px solid #e5e7eb;
  background: #f9fafb;
}

.menu-section {
  margin-bottom: 16px;
}

.menu-section:last-child {
  margin-bottom: 0;
}

.section-title {
  font-size: 12px;
  font-weight: 600;
  color: #6b7280;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin: 0 0 8px 0;
}

.quick-actions {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.quick-action {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: none;
  border: 1px solid #e5e7eb;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: left;
}

.quick-action:hover {
  background: rgba(59, 130, 246, 0.05);
  border-color: #3b82f6;
}

.action-icon {
  font-size: 14px;
}

.action-text {
  font-size: 13px;
  color: #374151;
  font-weight: 500;
}

.logout-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: #fee2e2;
  border: 1px solid #fecaca;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
  width: 100%;
  text-align: left;
}

.logout-btn:hover {
  background: #fecaca;
}

.logout-icon {
  font-size: 16px;
}

.logout-text {
  font-size: 14px;
  color: #dc2626;
  font-weight: 500;
}

.menu-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 999;
}

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

.menu-status {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 16px;
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.status-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.status-label {
  font-size: 12px;
  opacity: 0.8;
  font-weight: 500;
}

.status-value {
  font-size: 14px;
  font-weight: 600;
}

/* Responsivo */
@media (max-width: 768px) {
  .control-group {
    flex-direction: column;
    gap: 16px;
  }
  
  .feature-cards {
    grid-template-columns: 1fr;
  }
  
  .left-menu,
  .right-menu {
    width: 260px;
  }
  
  .menu-status {
    flex-direction: column;
    gap: 12px;
  }
}

/* Mejoras de animación */
.sliding-menu {
  will-change: transform;
}

.main-content {
  transition: transform 0.3s ease;
  will-change: transform;
}

/* Estilos de enfoque */
.menu-trigger:focus,
.action-btn:focus,
.menu-close:focus,
.menu-link:focus,
.quick-action:focus,
.logout-btn:focus {
  outline: 2px solid #3b82f6;
  outline-offset: 2px;
}

document.addEventListener('DOMContentLoaded', function() {
  const menuTrigger = document.querySelector('.menu-trigger');
  const slidingMenu = document.querySelector('.sliding-menu');
  const menuOverlay = document.querySelector('.menu-overlay');
  const menuClose = document.querySelector('.menu-close');
  const mainContent = document.querySelector('.main-content');
  const appHeader = document.querySelector('.app-header');
  const menuContainer = document.querySelector('.menu-container');
  
  const directionButtons = document.querySelectorAll('.control-btn');
  const styleButtons = document.querySelectorAll('.style-btn');
  
  const currentDirection = document.getElementById('currentDirection');
  const currentStyle = document.getElementById('currentStyle');
  const menuStatus = document.getElementById('menuStatus');
  
  let isMenuOpen = false;
  let currentMenuDirection = 'left';
  let currentMenuStyle = 'overlay';
  
  // Inicializar funcionalidad del menú deslizante
  function initSlidingMenu() {
    // Eventos del disparador del menú
    menuTrigger.addEventListener('click', toggleMenu);
    menuClose.addEventListener('click', closeMenu);
    menuOverlay.addEventListener('click', closeMenu);
    
    // Eventos de enlaces del menú
    const menuLinks = document.querySelectorAll('.menu-link');
    menuLinks.forEach(link => {
      link.addEventListener('click', (e) => {
        e.preventDefault();
        handleMenuItemClick(link);
      });
    });
    
    // Eventos de acciones rápidas
    const quickActions = document.querySelectorAll('.quick-action');
    quickActions.forEach(action => {
      action.addEventListener('click', () => {
        const actionText = action.querySelector('.action-text').textContent;
        showFeedback(`Acción rápida: ${actionText}`);
        closeMenu();
      });
    });
    
    // Evento del botón de cerrar sesión
    const logoutBtn = document.querySelector('.logout-btn');
    logoutBtn.addEventListener('click', () => {
      showFeedback('Cerrar sesión clickeado');
      closeMenu();
    });
    
    // Eventos de teclado
    document.addEventListener('keydown', handleKeyboard);
    
    // Eventos de control de dirección
    directionButtons.forEach(button => {
      button.addEventListener('click', () => {
        const direction = button.getAttribute('data-direction');
        changeMenuDirection(direction);
        
        // Actualizar botón activo
        directionButtons.forEach(btn => btn.classList.remove('active'));
        button.classList.add('active');
      });
    });
    
    // Eventos de control de estilo
    styleButtons.forEach(button => {
      button.addEventListener('click', () => {
        const style = button.getAttribute('data-style');
        changeMenuStyle(style);
        
        // Actualizar botón activo
        styleButtons.forEach(btn => btn.classList.remove('active'));
        button.classList.add('active');
      });
    });
  }
  
  // Alternar abrir/cerrar menú
  function toggleMenu() {
    if (isMenuOpen) {
      closeMenu();
    } else {
      openMenu();
    }
  }
  
  // Abrir menú
  function openMenu() {
    isMenuOpen = true;
    
    // Agregar clases
    slidingMenu.classList.add('menu-open');
    menuOverlay.classList.add('active');
    menuTrigger.classList.add('active');
    
    // Actualizar estado
    menuStatus.textContent = 'Abierto';
    
    // Gestión de enfoque
    setTimeout(() => {
      const firstMenuLink = slidingMenu.querySelector('.menu-link');
      if (firstMenuLink) {
        firstMenuLink.focus();
      }
    }, 300);
    
    showFeedback('Menú abierto');
  }
  
  // Cerrar menú
  function closeMenu() {
    isMenuOpen = false;
    
    // Remover clases
    slidingMenu.classList.remove('menu-open');
    menuOverlay.classList.remove('active');
    menuTrigger.classList.remove('active');
    
    // Actualizar estado
    menuStatus.textContent = 'Cerrado';
    
    // Devolver enfoque al disparador
    menuTrigger.focus();
    
    showFeedback('Menú cerrado');
  }
  
  // Cambiar dirección del menú
  function changeMenuDirection(direction) {
    if (isMenuOpen) {
      closeMenu();
    }
    
    // Remover clases de dirección anteriores
    slidingMenu.classList.remove('left-menu', 'right-menu', 'top-menu', 'bottom-menu');
    
    // Agregar nueva clase de dirección
    slidingMenu.classList.add(`${direction}-menu`);
    
    currentMenuDirection = direction;
    const directionNames = {
      left: 'Izquierda',
      right: 'Derecha',
      top: 'Arriba',
      bottom: 'Abajo'
    };
    currentDirection.textContent = directionNames[direction];
    
    showFeedback(`Dirección del menú cambiada a ${directionNames[direction].toLowerCase()}`);
  }
  
  // Cambiar estilo del menú
  function changeMenuStyle(style) {
    if (isMenuOpen) {
      closeMenu();
    }
    
    // Remover clases de estilo anteriores
    slidingMenu.classList.remove('overlay-style', 'push-style', 'reveal-style');
    
    // Agregar nueva clase de estilo
    slidingMenu.classList.add(`${style}-style`);
    
    currentMenuStyle = style;
    const styleNames = {
      overlay: 'Superposición',
      push: 'Empujar',
      reveal: 'Revelar'
    };
    currentStyle.textContent = styleNames[style];
    
    showFeedback(`Estilo del menú cambiado a ${styleNames[style].toLowerCase()}`);
  }
  
  // Manejar clics en elementos del menú
  function handleMenuItemClick(link) {
    // Remover clase activa de todos los enlaces
    const allLinks = document.querySelectorAll('.menu-link');
    allLinks.forEach(l => l.classList.remove('active'));
    
    // Agregar clase activa al enlace clickeado
    link.classList.add('active');
    
    // Obtener texto del menú
    const menuText = link.querySelector('.menu-text').textContent;
    
    showFeedback(`Navegado a: ${menuText}`);
    
    // Cerrar menú después de navegación (comportamiento móvil)
    if (window.innerWidth <= 768) {
      setTimeout(closeMenu, 500);
    }
  }
  
  // Manejar navegación por teclado
  function handleKeyboard(e) {
    if (!isMenuOpen) return;
    
    switch(e.key) {
      case 'Escape':
        e.preventDefault();
        closeMenu();
        break;
      case 'Tab':
        // Permitir navegación normal por tab dentro del menú
        break;
      case 'ArrowDown':
        e.preventDefault();
        navigateMenu('down');
        break;
      case 'ArrowUp':
        e.preventDefault();
        navigateMenu('up');
        break;
    }
  }
  
  // Navegar menú con teclado
  function navigateMenu(direction) {
    const menuLinks = Array.from(slidingMenu.querySelectorAll('.menu-link, .quick-action, .logout-btn'));
    const currentFocus = document.activeElement;
    const currentIndex = menuLinks.indexOf(currentFocus);
    
    let nextIndex;
    if (direction === 'down') {
      nextIndex = currentIndex < menuLinks.length - 1 ? currentIndex + 1 : 0;
    } else {
      nextIndex = currentIndex > 0 ? currentIndex - 1 : menuLinks.length - 1;
    }
    
    menuLinks[nextIndex].focus();
  }
  
  // Manejar redimensionamiento de ventana
  window.addEventListener('resize', () => {
    if (window.innerWidth > 768 && isMenuOpen) {
      // Mantener menú abierto en escritorio
    }
  });
  
  // Manejar clics fuera del contenedor del menú
  document.addEventListener('click', (e) => {
    if (isMenuOpen && !menuContainer.contains(e.target) && !e.target.closest('.control-btn') && !e.target.closest('.style-btn')) {
      closeMenu();
    }
  });
  
  // Función de retroalimentación
  function showFeedback(message) {
    const existing = document.querySelector('.demo-feedback');
    if (existing) existing.remove();
    
    const feedback = document.createElement('div');
    feedback.className = 'demo-feedback';
    feedback.textContent = message;
    feedback.style.cssText = `
      position: fixed;
      top: 20px;
      left: 50%;
      transform: translateX(-50%);
      background: linear-gradient(135deg, #48bb78 0%, #38a169 100%);
      color: white;
      padding: 12px 20px;
      border-radius: 8px;
      font-size: 14px;
      font-weight: 500;
      z-index: 10001;
      box-shadow: 0 4px 15px rgba(72, 187, 120, 0.3);
      opacity: 0;
      transition: opacity 0.3s ease;
    `;
    
    document.body.appendChild(feedback);
    
    requestAnimationFrame(() => {
      feedback.style.opacity = '1';
    });
    
    setTimeout(() => {
      feedback.style.opacity = '0';
      setTimeout(() => feedback.remove(), 300);
    }, 2500);
  }
  
  // Inicializar
  initSlidingMenu();
  
  // Retroalimentación inicial
  setTimeout(() => {
    showFeedback('¡Prueba diferentes direcciones y estilos, luego haz clic en el botón del menú!');
  }, 1000);
  
  // Exponer API para uso externo
  window.slidingMenuAPI = {
    openMenu,
    closeMenu,
    toggleMenu,
    changeMenuDirection,
    changeMenuStyle,
    showFeedback
  };
});