/* Custom styles for K&C Budget Muffler and Performance */

/* Scroll reveal animations - progressive enhancement only */
@media (prefers-reduced-motion: no-preference) {
  .service-card {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease, border-color 0.4s ease, background 0.4s ease;
  }

  .service-card.reveal {
    opacity: 0;
    transform: translateY(24px);
  }

  .service-card.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Navbar scroll state */
.navbar-scrolled {
  background: rgba(5, 10, 20, 0.92) !important;
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

/* Mobile menu animation */
#mobileMenu.open {
  display: flex;
}

#mobileMenu:not(.open) {
  display: none;
}

/* Hamburger animation */
#menuBtn[aria-expanded="true"] #bar1 {
  transform: translateY(5px) rotate(45deg);
}
#menuBtn[aria-expanded="true"] #bar2 {
  opacity: 0;
}
#menuBtn[aria-expanded="true"] #bar3 {
  transform: translateY(-5px) rotate(-45deg);
}

/* Smooth link transitions */
a {
  text-decoration: none;
}

/* Selection color */
::selection {
  background: rgba(45, 212, 191, 0.3);
  color: #fff;
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #050a14;
}
::-webkit-scrollbar-thumb {
  background: #1e2d4a;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #2dd4bf;
}

/* Mobile link transitions */
.mobile-link {
  transition: color 0.2s ease;
}

/* Select dropdown arrow */
select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

/* Gold shimmer on CTA buttons */
@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

/* Pulse for trust badge dot */
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.3); }
}

.animate-pulse {
  animation: pulse-dot 2s ease-in-out infinite;
}
</style>
<sm-file path="script.js">
(function () {
  'use strict';

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

  function onScroll() {
    const current = window.scrollY;
    if (current > 60) {
      navbar.classList.add('navbar-scrolled');
    } else {
      navbar.classList.remove('navbar-scrolled');
    }
    lastScroll = current;
  }

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

  // ── Mobile menu ──────────────────────────────────────────────────────
  const menuBtn = document.getElementById('menuBtn');
  const mobileMenu = document.getElementById('mobileMenu');
  const mobileLinks = mobileMenu.querySelectorAll('a');

  menuBtn.addEventListener('click', function () {
    const isOpen = mobileMenu.classList.toggle('open');
    menuBtn.setAttribute('aria-expanded', isOpen);
  });

  mobileLinks.forEach(function (link) {
    link.addEventListener('click', function () {
      mobileMenu.classList.remove('open');
      menuBtn.setAttribute('aria-expanded', 'false');
    });
  });

  // ── Scroll reveal (progressive enhancement) ─────────────────────────
  const prefersReducedMotion = window.matchMedia('(prefers-reduced-motion: reduce)').matches;

  if (!prefersReducedMotion) {
    const revealElements = document.querySelectorAll('.service-card');

    function revealOnScroll() {
      const windowHeight = window.innerHeight;
      revealElements.forEach(function (el, i) {
        const rect = el.getBoundingClientRect();
        if (rect.top < windowHeight - 60) {
          setTimeout(function () {
            el.classList.add('revealed');
          }, i * 80);
        }
      });
    }

    window.addEventListener('scroll', revealOnScroll, { passive: true });
    revealOnScroll(); // initial check
  }

  // ── Contact form ─────────────────────────────────────────────────────
  const form = document.getElementById('contactForm');
  const successMsg = document.getElementById('formSuccess');

  form.addEventListener('submit', function (e) {
    e.preventDefault();

    // Simulate submission
    var btn = form.querySelector('button[type="submit"]');
    btn.disabled = true;
    btn.textContent = 'Sending…';

    setTimeout(function () {
      form.reset();
      btn.disabled = false;
      btn.innerHTML = '<svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><line x1="22" y1="2" x2="11" y2="13"/><polygon points="22 2 15 22 11 13 2 9 22 2"/></svg> Send Message';
      successMsg.classList.remove('hidden');

      setTimeout(function () {
        successMsg.classList.add('hidden');
      }, 5000);
    }, 1200);
  });

  // ── Smooth scroll for anchor links ───────────────────────────────────
  document.querySelectorAll('a[href^="#"]').forEach(function (anchor) {
    anchor.addEventListener('click', function (e) {
      var targetId = this.getAttribute('href');
      if (targetId === '#') return;
      var target = document.querySelector(targetId);
      if (target) {
        e.preventDefault();
        var offset = navbar.offsetHeight + 10;
        var top = target.getBoundingClientRect().top + window.scrollY - offset;
        window.scrollTo({ top: top, behavior: 'smooth' });
      }
    });
  });
})();