document.addEventListener('DOMContentLoaded', () => {

    /* Preloader */
    const preload = document.getElementById('preload');
    if (preload) {
        window.addEventListener('load', () => {
            preload.style.opacity = '0';
            preload.style.transition = 'opacity 0.4s ease';
            setTimeout(() => {
                preload.style.display = 'none';
            }, 400);
        });
    }

    /* Menu Mobile Toggle */
    const mobileToggle = document.getElementById('mobile-toggle');
    const mainNav = document.getElementById('main-nav');

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

    /* Submenus Mobile */
    const parentMenuItems = document.querySelectorAll('.menu-item-has-children > a');
    parentMenuItems.forEach(item => {
        item.addEventListener('click', (e) => {
            if (window.innerWidth <= 991) {
                e.preventDefault();
                const parent = item.parentElement;
                parent.classList.toggle('open');
            }
        });
    });

    /* Formulário de Contato com Redirecionamento */
    const contactForm = document.getElementById('contact-form');
    const responseContainer = document.getElementById('contact-content');

    if (contactForm && responseContainer) {
        contactForm.addEventListener('submit', (e) => {
            e.preventDefault();

            const formData = new FormData(contactForm);
            responseContainer.innerHTML = '<div class="thanks loading">Sending message...</div>';

            fetch(contactForm.getAttribute('action'), {
                method: 'POST',
                body: formData
            })
            .then(response => response.text())
            .then(data => {
                if (data.trim() === 'REDIRECT:thankyou.html') {
                    window.location.href = 'thankyou.html';
                } else {
                    responseContainer.innerHTML = data;
                }
            })
            .catch(() => {
                responseContainer.innerHTML = '<div class="thanks failure">An error occurred while sending your message. Please try again.</div>';
            });
        });
    }

});