// Tab functionality for itineraries
document.addEventListener('DOMContentLoaded', function() {
    // Tab switching
    const tabButtons = document.querySelectorAll('.tab-button');
    const tabPanes = document.querySelectorAll('.tab-pane');
    
    tabButtons.forEach(button => {
        button.addEventListener('click', () => {
            // Remove active class from all buttons and panes
            tabButtons.forEach(btn => btn.classList.remove('active'));
            tabPanes.forEach(pane => pane.classList.remove('active'));
            
            // Add active class to clicked button
            button.classList.add('active');
            
            // Show corresponding pane
            const tabIndex = Array.from(tabButtons).indexOf(button);
            tabPanes[tabIndex].classList.add('active');
        });
    });
    
    // Mobile menu toggle
    const menuButton = document.querySelector('.md\\:hidden');
    if (menuButton) {
        menuButton.addEventListener('click', function() {
            const nav = document.querySelector('nav');
            nav.classList.toggle('hidden');
        });
    }
    
    // Smooth scrolling for anchor links
    document.querySelectorAll('a[href^="#"]').forEach(anchor => {
        anchor.addEventListener('click', function(e) {
            e.preventDefault();
            const target = document.querySelector(this.getAttribute('href'));
            if (target) {
                target.scrollIntoView({
                    behavior: 'smooth',
                    block: 'start'
                });
            }
        });
    });
    
    // Animation on scroll
    const observerOptions = {
        root: null,
        rootMargin: '0px',
        threshold: 0.1
    };
    
    const observer = new IntersectionObserver((entries) => {
        entries.forEach(entry => {
            if (entry.isIntersecting) {
                entry.target.classList.add('animate-fadeInUp');
            }
        });
    }, observerOptions);
    
    document.querySelectorAll('.animate-on-scroll').forEach(el => {
        observer.observe(el);
    });
});

// Animation utilities
const animateOnScroll = {
    init() {
        const elements = document.querySelectorAll('[data-animate]');
        const observer = new IntersectionObserver(entries => {
            entries.forEach(entry => {
                if (entry.isIntersecting) {
                    entry.target.classList.add('animated', entry.target.dataset.animate);
                    observer.unobserve(entry.target);
                }
            });
        }, {
            threshold: 0.1
        });
        
        elements.forEach(element => {
            observer.observe(element);
        });
    }
};

// Initialize when DOM is loaded
document.addEventListener('DOMContentLoaded', () => {
    animateOnScroll.init();
});

// Helper functions
function toggleElement(elementId) {
    const element = document.getElementById(elementId);
    if (element) {
        element.classList.toggle('hidden');
    }
}

function showNotification(message, type = 'info') {
    // Create notification element
    const notification = document.createElement('div');
    notification.className = `fixed top-4 right-4 px-6 py-4 rounded-lg shadow-lg z-50 transform transition-all duration-300 ${
        type === 'success' ? 'bg-green-500' : 
        type === 'error' ? 'bg-red-500' : 
        'bg-blue-500'
    } text-white`;
    notification.innerHTML = `
        <div class="flex items-center">
            <i data-feather="${type === 'success' ? 'check-circle' : type === 'error' ? 'x-circle' : 'info'}" class="mr-2"></i>
            <span>${message}</span>
        </div>
    `;
    
    document.body.appendChild(notification);
    feather.replace();
    
    // Auto remove after 3 seconds
    setTimeout(() => {
        notification.classList.add('opacity-0', 'translate-x-full');
        setTimeout(() => {
            document.body.removeChild(notification);
        }, 300);
    }, 3000);
}

// Form validation example
function validateSearchForm() {
    const input = document.querySelector('input[type="text"]');
    if (input && input.value.trim() === '') {
        showNotification('Please describe your dream vacation', 'error');
        return false;
    }
    return true;
}

// Add event listener to search form
document.addEventListener('DOMContentLoaded', () => {
    const searchForm = document.querySelector('input[type="text"]').closest('div').nextElementSibling;
    if (searchForm) {
        searchForm.addEventListener('click', function(e) {
            if (!validateSearchForm()) {
                e.preventDefault();
            }
        });
    }
});