// Global JavaScript functions and utilities

// Initialize Feather icons after page load
document.addEventListener('DOMContentLoaded', () => {
    feather.replace();
});

// Mobile menu toggle
function toggleMobileMenu() {
    const menu = document.querySelector('.mobile-menu');
    if (menu) {
        menu.classList.toggle('hidden');
    }
}

// Smooth scroll 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'
            });
        }
    });
});

// Add animation on scroll
const observerOptions = {
    threshold: 0.1,
    rootMargin: '0px 0px -50px 0px'
};

const observer = new IntersectionObserver((entries) => {
    entries.forEach(entry => {
        if (entry.isIntersecting) {
            entry.target.classList.add('animate-fade-in');
        }
    });
}, observerOptions);

// Observe all sections
document.addEventListener('DOMContentLoaded', () => {
    document.querySelectorAll('section').forEach(section => {
        observer.observe(section);
    });
});

// Form validation helper
function validateForm(formElement) {
    let isValid = true;
    const inputs = formElement.querySelectorAll('input[required], textarea[required], select[required]');
    
    inputs.forEach(input => {
        if (!input.value.trim()) {
            isValid = false;
            input.classList.add('border-red-500');
        } else {
            input.classList.remove('border-red-500');
        }
    });
    
    return isValid;
}

// Show notification
function showNotification(message, type = 'success') {
    const notification = document.createElement('div');
    notification.className = `fixed top-4 right-4 px-6 py-4 rounded-lg shadow-lg z-50 ${
        type === 'success' ? 'bg-green-500 text-white' : 'bg-red-500 text-white'
    }`;
    notification.innerHTML = `
        <div class="flex items-center">
            <i data-feather="${type === 'success' ? 'check-circle' : 'alert-circle'}" class="w-5 h-5 mr-2"></i>
            <span>${message}</span>
        </div>
    `;
    
    document.body.appendChild(notification);
    feather.replace();
    
    setTimeout(() => {
        notification.remove();
    }, 5000);
}