// ============================================
// Smooth Scrolling für Navigation Links
// ============================================

document.querySelectorAll('a[href^="#"]').forEach(anchor => {
    anchor.addEventListener('click', function (e) {
        e.preventDefault();
        const target = document.querySelector(this.getAttribute('href'));
        
        if (target) {
            const offsetTop = target.offsetTop - 70;
            
            window.scrollTo({
                top: offsetTop,
                behavior: 'smooth'
            });
            
            // Navbar in Mobile schließen
            const navbarCollapse = document.querySelector('.navbar-collapse');
            if (navbarCollapse.classList.contains('show')) {
                navbarCollapse.classList.remove('show');
            }
        }
    });
});

// ============================================
// Navbar beim Scrollen
// ============================================

let lastScroll = 0;
const navbar = document.querySelector('.navbar');

window.addEventListener('scroll', () => {
    const currentScroll = window.pageYOffset;
    
    // Navbar Schatten beim Scrollen
    if (currentScroll > 100) {
        navbar.style.boxShadow = '0 4px 20px rgba(0, 0, 0, 0.15)';
    } else {
        navbar.style.boxShadow = '0 2px 10px rgba(0, 0, 0, 0.1)';
    }
    
    lastScroll = currentScroll;
});

// ============================================
// Active Navigation Link beim Scrollen
// ============================================

const sections = document.querySelectorAll('section[id]');
const navLinks = document.querySelectorAll('.nav-link');

window.addEventListener('scroll', () => {
    let current = '';
    
    sections.forEach(section => {
        const sectionTop = section.offsetTop;
        const sectionHeight = section.clientHeight;
        
        if (window.pageYOffset >= (sectionTop - 100)) {
            current = section.getAttribute('id');
        }
    });
    
    navLinks.forEach(link => {
        link.classList.remove('active');
        if (link.getAttribute('href') === `#${current}`) {
            link.classList.add('active');
        }
    });
});

// ============================================
// Fade-in Animation beim Scrollen
// ============================================

const observerOptions = {
    threshold: 0.1,
    rootMargin: '0px 0px -100px 0px'
};

const observer = new IntersectionObserver((entries) => {
    entries.forEach(entry => {
        if (entry.isIntersecting) {
            entry.target.style.opacity = '1';
            entry.target.style.transform = 'translateY(0)';
        }
    });
}, observerOptions);

// Cards beobachten
document.querySelectorAll('.card').forEach((card) => {
    card.style.opacity = '0';
    card.style.transform = 'translateY(30px)';
    card.style.transition = 'opacity 0.6s ease, transform 0.6s ease';
    observer.observe(card);
});

// ============================================
// Card Tilt Effekt (optional)
// ============================================

document.querySelectorAll('.hover-lift').forEach(card => {
    card.addEventListener('mousemove', (e) => {
        const rect = card.getBoundingClientRect();
        const x = e.clientX - rect.left;
        const y = e.clientY - rect.top;
        
        const centerX = rect.width / 2;
        const centerY = rect.height / 2;
        
        const rotateX = (y - centerY) / 20;
        const rotateY = (centerX - x) / 20;
        
        card.style.transform = `perspective(1000px) rotateX(${rotateX}deg) rotateY(${rotateY}deg) translateY(-10px)`;
    });
    
    card.addEventListener('mouseleave', () => {
        card.style.transform = 'perspective(1000px) rotateX(0) rotateY(0) translateY(0)';
    });
});

// ============================================
// Button Ripple Effekt
// ============================================

document.querySelectorAll('.btn').forEach(button => {
    button.addEventListener('click', function(e) {
        const ripple = document.createElement('span');
        const rect = this.getBoundingClientRect();
        const size = Math.max(rect.width, rect.height);
        const x = e.clientX - rect.left - size / 2;
        const y = e.clientY - rect.top - size / 2;
        
        ripple.style.width = ripple.style.height = size + 'px';
        ripple.style.left = x + 'px';
        ripple.style.top = y + 'px';
        ripple.classList.add('ripple');
        
        this.appendChild(ripple);
        
        setTimeout(() => {
            ripple.remove();
        }, 600);
    });
});

// CSS für Ripple Effekt dynamisch hinzufügen
const style = document.createElement('style');
style.textContent = `
    .btn {
        position: relative;
        overflow: hidden;
    }
    
    .ripple {
        position: absolute;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.5);
        transform: scale(0);
        animation: ripple-animation 0.6s ease-out;
        pointer-events: none;
    }
    
    @keyframes ripple-animation {
        to {
            transform: scale(4);
            opacity: 0;
        }
    }
`;
document.head.appendChild(style);

// ============================================
// Jahr im Footer automatisch aktualisieren
// ============================================

const currentYear = new Date().getFullYear();
const footerText = document.querySelector('footer p');
if (footerText && footerText.textContent.includes('©')) {
    footerText.textContent = `© ${currentYear} traidendorf`;
}

// ============================================
// Loading Animation (optional)
// ============================================

window.addEventListener('load', () => {
    document.body.style.opacity = '0';
    document.body.style.transition = 'opacity 0.5s ease';
    
    setTimeout(() => {
        document.body.style.opacity = '1';
    }, 100);
});

// ============================================
// Externe Links in neuem Tab öffnen
// ============================================

document.querySelectorAll('a[href^="http"]').forEach(link => {
    if (!link.hasAttribute('target')) {
        link.setAttribute('target', '_blank');
        link.setAttribute('rel', 'noopener noreferrer');
    }
});

// ============================================
// Console Message
// ============================================

console.log('%c Willkommen auf traidendorf.de! ', 'background: linear-gradient(135deg, #2c5f2d 0%, #7d9b76 100%); color: white; padding: 10px 20px; font-size: 16px; font-weight: bold;');
console.log('%c Website erstellt mit ❤️ für Traidendorf ', 'color: #2c5f2d; font-size: 12px;');

// ============================================
// Back to Top Button
// ============================================

const backToTopButton = document.getElementById('backToTop');

// Button anzeigen/ausblenden beim Scrollen
window.addEventListener('scroll', () => {
    if (window.pageYOffset > 300) {
        backToTopButton.classList.add('show');
    } else {
        backToTopButton.classList.remove('show');
    }
});