tenderradar/script.js

// Mobile Menu Toggle
const mobileToggle = document.querySelector('.mobile-toggle');
const navMenu = document.querySelector('.nav-menu');

if (mobileToggle) {
    mobileToggle.addEventListener('click', () => {
        navMenu.classList.toggle('active');
    });
}

// Close mobile menu when clicking a link
const navLinks = document.querySelectorAll('.nav-menu a');
navLinks.forEach(link => {
    link.addEventListener('click', () => {
        navMenu.classList.remove('active');
    });
});

// Smooth Scrolling
document.querySelectorAll('a[href^="#"]').forEach(anchor => {
    anchor.addEventListener('click', function (e) {
        // Only prevent default for hash links, not for regular links
        if (this.getAttribute('href').startsWith('#')) {
            e.preventDefault();
            const target = document.querySelector(this.getAttribute('href'));
            if (target) {
                const headerOffset = 80;
                const elementPosition = target.getBoundingClientRect().top;
                const offsetPosition = elementPosition + window.pageYOffset - headerOffset;

                window.scrollTo({
                    top: offsetPosition,
                    behavior: 'smooth'
                });
            }
        }
    });
});

// FAQ Accordion
const faqItems = document.querySelectorAll('.faq-item');

faqItems.forEach(item => {
    const question = item.querySelector('.faq-question');
    
    question.addEventListener('click', () => {
        const isActive = item.classList.contains('active');
        
        // Close all FAQ items
        faqItems.forEach(faq => faq.classList.remove('active'));
        
        // Open clicked item if it wasn't active
        if (!isActive) {
            item.classList.add('active');
        }
    });
});

// Signup Form Handling
const signupForm = document.getElementById('signupForm');
const formMessage = document.getElementById('formMessage');

if (signupForm) {
    signupForm.addEventListener('submit', async (e) => {
        e.preventDefault();
        
        const emailInput = document.getElementById('email');
        const email = emailInput.value.trim();
        
        // Basic validation
        if (!email || !isValidEmail(email)) {
            showMessage('Please enter a valid email address.', 'error');
            return;
        }
        
        // Get submit button
        const submitBtn = signupForm.querySelector('button[type="submit"]');
        const originalBtnText = submitBtn.textContent;
        
        // Disable button and show loading state
        submitBtn.disabled = true;
        submitBtn.textContent = 'Redirecting...';
        
        // Redirect to signup page after a brief delay
        setTimeout(() => {
            window.location.href = '/signup.html';
        }, 300);
    });
}

function isValidEmail(email) {
    const re = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
    return re.test(email);
}

function showMessage(message, type) {
    formMessage.textContent = message;
    formMessage.className = `form-message ${type}`;
    
    // Auto-hide success messages after 5 seconds
    if (type === 'success') {
        setTimeout(() => {
            formMessage.className = 'form-message';
        }, 5000);
    }
}

// Add scroll animation for header
let lastScroll = 0;
const header = document.querySelector('.header');

window.addEventListener('scroll', () => {
    const currentScroll = window.pageYOffset;
    
    if (currentScroll > 100) {
        header.style.boxShadow = '0 2px 8px rgba(0,0,0,0.1)';
    } else {
        header.style.boxShadow = 'none';
    }
    
    lastScroll = currentScroll;
});

// FIXED: Remove all inline opacity/transform styles.
// Elements are now visible by default. No animation needed.
// This fixes the issue where Intersection Observer wasn't working properly.