/* ============================================
   Lone Star Motor — Custom Styles
   ============================================ */

/* Fade-in-up animation for hero */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-up {
    animation-name: fadeInUp;
    animation-duration: 0.8s;
    animation-timing-function: cubic-bezier(0.16, 1, 0.3, 1);
}

/* Scroll reveal base — visible by default for progressive enhancement */
.scroll-reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Scroll reveal hidden state — applied by JS only */
.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    .scroll-reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
    .animate-fade-in-up {
        animation: none;
        opacity: 1;
    }
}

/* Smooth scrolling offset for fixed nav */
section[id] {
    scroll-margin-top: 80px;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #1f381b;
}
::-webkit-scrollbar-thumb {
    background: #3d6e33;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #528a44;
}
</style>

<sm-file path="script.js">
/* ============================================
   Lone Star Motor — Interactive Scripts
   ============================================ */

(function () {
    'use strict';

    // --- Navbar scroll behavior ---
    const navbar = document.getElementById('navbar');
    let lastScroll = 0;

    function handleNavbarScroll() {
        const currentScroll = window.pageYOffset;
        if (currentScroll > 60) {
            navbar.classList.add('nav-scrolled');
        } else {
            navbar.classList.remove('nav-scrolled');
        }
        lastScroll = currentScroll;
    }

    window.addEventListener('scroll', handleNavbarScroll, { passive: true });

    // --- Mobile menu ---
    const menuBtn = document.getElementById('menu-btn');
    const mobileMenu = document.getElementById('mobile-menu');
    const menuIconOpen = document.getElementById('menu-icon-open');
    const menuIconClose = document.getElementById('menu-icon-close');
    const mobileLinks = document.querySelectorAll('.mobile-link');

    function toggleMenu() {
        const isOpen = !mobileMenu.classList.contains('hidden');
        mobileMenu.classList.toggle('hidden');
        menuIconOpen.classList.toggle('hidden');
        menuIconClose.classList.toggle('hidden');
        menuBtn.setAttribute('aria-expanded', !isOpen);
    }

    menuBtn.addEventListener('click', toggleMenu);

    mobileLinks.forEach(function (link) {
        link.addEventListener('click', function () {
            mobileMenu.classList.add('hidden');
            menuIconOpen.classList.remove('hidden');
            menuIconClose.classList.add('hidden');
        });
    });

    // --- Scroll reveal (progressive enhancement) ---
    // Only activate if prefers-reduced-motion is not set
    const prefersReducedMotion = window.matchMedia('(prefers-reduced-motion: reduce)').matches;

    if (!prefersReducedMotion && 'IntersectionObserver' in window) {
        const revealElements = document.querySelectorAll('.scroll-reveal');

        const revealObserver = new IntersectionObserver(
            function (entries) {
                entries.forEach(function (entry) {
                    if (entry.isIntersecting) {
                        entry.target.classList.add('revealed');
                        revealObserver.unobserve(entry.target);
                    }
                });
            },
            {
                threshold: 0.12,
                rootMargin: '0px 0px -40px 0px'
            }
        );

        revealElements.forEach(function (el) {
            // Set initial hidden state via JS only (progressive enhancement)
            el.style.opacity = '0';
            el.style.transform = 'translateY(24px)';
            revealObserver.observe(el);
        });
    }

    // --- Smooth scroll for anchor links ---
    document.querySelectorAll('a[href^="#"]').forEach(function (anchor) {
        anchor.addEventListener('click', function (e) {
            const targetId = this.getAttribute('href');
            if (targetId === '#') return;
            const target = document.querySelector(targetId);
            if (target) {
                e.preventDefault();
                target.scrollIntoView({
                    behavior: 'smooth',
                    block: 'start'
                });
            }
        });
    });

})();