// KeyKrest Event Architects - Main Script
document.addEventListener('DOMContentLoaded', function() {
  // Initialize Feather Icons
  feather.replace();
  
  // Theme Management
  const themeToggle = document.getElementById('themeToggle');
  const html = document.documentElement;
  
  // Set initial theme based on system preference or stored value
  const storedTheme = localStorage.getItem('theme') || (window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light');
  html.classList.add(storedTheme);
  
  if (themeToggle) {
    // Update toggle icon based on theme
    const updateToggleIcon = () => {
      const isDark = html.classList.contains('dark');
      const icon = themeToggle.querySelector('i');
      if (icon) {
        icon.setAttribute('data-feather', isDark ? 'sun' : 'moon');
        feather.replace();
      }
    };
    
    updateToggleIcon();
    
    themeToggle.addEventListener('click', () => {
      const isDark = html.classList.contains('dark');
      html.classList.remove(isDark ? 'dark' : 'light');
      html.classList.add(isDark ? 'light' : 'dark');
      localStorage.setItem('theme', isDark ? 'light' : 'dark');
      updateToggleIcon();
    });
  }
  
  // Animate elements 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 elements with animation class
  document.querySelectorAll('.animate-on-scroll').forEach((el) => observer.observe(el));
  
  // Countdown Timer for Guarantee
  const countdownElement = document.getElementById('countdown');
  if (countdownElement) {
    const updateCountdown = () => {
      const targetTimestamp = 1698266541; // 2023 09 04 09 02 21
  const targetTimestamp = 2023年*月*日，;
}
——————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————

——————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————

——————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————场场的场场的场场的场场的场（场场场场场场场场场场（场场场场、场场场场场场、服务、细节）)）

————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————
———————————————————————————————————————

---
function updateCountdown() {
  const target = new Date('2023-09-04T09:02:21Z').getTime();
  const now = new Date().getTime();
  const difference = target - now;
  if (difference <= 0) {
    countdownElement.textContent = '00:00:00';
    return;
  }
  const hours = Math.floor((difference % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
  const minutes = Math.floor((difference % (1000 * 60 * 60)) / (1000 * 60));
  const seconds = Math.floor((difference % (1000 * 60)) / 1000);
  countdownElement.textContent = `${hours.toString().padStart(2, '0')}:${minutes.toString().padStart(2, '0')}:${seconds.toString().padStart(2, '0')}`;
}
setInterval(updateCountdown, 1000);
updateCountdown();
  }

  // Form Submission Handling
  const inquiryForm = document.querySelector('form');
  if (inquiryForm) {
    inquiryForm.addEventListener('submit', async (e) => {
      e.preventDefault();
      
      const submitBtn = inquiryForm.querySelector('button[type="submit"]');
      const originalText = submitBtn.textContent;
      
      // Show loading state
      submitBtn.textContent = 'Processing...';
      submitBtn.disabled = true;
      
      // Simulate API call
      setTimeout(() => {
        alert('Your inquiry has been submitted. We\'ll respond within 24 hours!');
        inquiryForm.reset();
        submitBtn.textContent = originalText;
        submitBtn.disabled = false;
      }, 1500);
    });
  }
});