Testimonial Slider

.testimonial-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 48px 24px;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

.testimonial-header {
  text-align: center;
  margin-bottom: 48px;
}

.testimonial-title {
  font-size: 48px;
  font-weight: 700;
  color: #1a202c;
  margin: 0 0 16px 0;
  background: linear-gradient(135deg, #667eea, #764ba2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.testimonial-subtitle {
  font-size: 18px;
  color: #6b7280;
  margin: 0;
  font-weight: 400;
}

/* Slider Container */
.testimonial-slider {
  position: relative;
  background: white;
  border-radius: 24px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  margin-bottom: 48px;
}

.testimonial-track {
  display: flex;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.testimonial-slide {
  min-width: 100%;
  padding: 48px;
  opacity: 0;
  transition: opacity 0.6s ease;
}

.testimonial-slide.active {
  opacity: 1;
}

.testimonial-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

/* Quote Section */
.testimonial-quote {
  position: relative;
  margin-bottom: 32px;
}

.quote-icon {
  width: 48px;
  height: 48px;
  color: #667eea;
  margin-bottom: 24px;
  opacity: 0.3;
}

.testimonial-text {
  font-size: 24px;
  line-height: 1.6;
  color: #2d3748;
  margin: 0;
  font-weight: 400;
  font-style: italic;
  position: relative;
}

/* Rating Section */
.testimonial-rating {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 32px;
}

.stars {
  display: flex;
  gap: 4px;
}

.star {
  font-size: 20px;
  color: #e2e8f0;
  transition: color 0.3s ease;
}

.star.filled {
  color: #fbbf24;
}

.star.half {
  background: linear-gradient(90deg, #fbbf24 50%, #e2e8f0 50%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.rating-text {
  font-size: 14px;
  color: #6b7280;
  font-weight: 500;
}

/* Author Section */
.testimonial-author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
}

.author-avatar {
  position: relative;
}

.author-avatar img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid #f7fafc;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.author-info {
  text-align: left;
}

.author-name {
  font-size: 18px;
  font-weight: 600;
  color: #1a202c;
  margin: 0 0 4px 0;
}

.author-title {
  font-size: 14px;
  color: #667eea;
  margin: 0 0 2px 0;
  font-weight: 500;
}

.author-company {
  font-size: 12px;
  color: #9ca3af;
  margin: 0;
}

/* Controls */
.testimonial-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 24px;
  background: #f8fafc;
}

.control-btn {
  width: 48px;
  height: 48px;
  border: 2px solid #e2e8f0;
  background: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  color: #4a5568;
}

.control-btn:hover {
  border-color: #667eea;
  color: #667eea;
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15);
}

.control-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.control-btn svg {
  width: 20px;
  height: 20px;
}

/* Dots Navigation */
.testimonial-dots {
  display: flex;
  gap: 12px;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: none;
  background: #cbd5e0;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
}

.dot:hover {
  background: #a0aec0;
  transform: scale(1.2);
}

.dot.active {
  background: #667eea;
  transform: scale(1.3);
}

.dot.active::after {
  content: '';
  position: absolute;
  top: -4px;
  left: -4px;
  right: -4px;
  bottom: -4px;
  border: 2px solid #667eea;
  border-radius: 50%;
  opacity: 0.3;
}

/* Auto-play Controls */
.autoplay-controls {
  display: flex;
  justify-content: center;
  padding: 16px 24px;
  background: #f8fafc;
  border-top: 1px solid #e2e8f0;
}

.autoplay-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: transparent;
  border: 1px solid #e2e8f0;
  border-radius: 20px;
  color: #4a5568;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 14px;
}

.autoplay-btn:hover {
  border-color: #667eea;
  color: #667eea;
}

.autoplay-btn.active {
  background: #667eea;
  border-color: #667eea;
  color: white;
}

.autoplay-btn svg {
  width: 16px;
  height: 16px;
}

/* Statistics */
.testimonial-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  text-align: center;
}

.stat-item {
  padding: 24px;
  background: white;
  border-radius: 16px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease;
}

.stat-item:hover {
  transform: translateY(-4px);
}

.stat-number {
  font-size: 36px;
  font-weight: 700;
  color: #667eea;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 14px;
  color: #6b7280;
  font-weight: 500;
}

/* Animations */
@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.testimonial-slide.active .testimonial-content {
  animation: slideIn 0.6s ease;
}

.stat-item {
  animation: fadeIn 0.6s ease;
}

/* Responsive Design */
@media (max-width: 768px) {
  .testimonial-container {
    padding: 24px 16px;
  }
  
  .testimonial-title {
    font-size: 32px;
  }
  
  .testimonial-subtitle {
    font-size: 16px;
  }
  
  .testimonial-slide {
    padding: 32px 24px;
  }
  
  .testimonial-text {
    font-size: 18px;
  }
  
  .testimonial-author {
    flex-direction: column;
    gap: 16px;
  }
  
  .author-info {
    text-align: center;
  }
  
  .author-avatar img {
    width: 60px;
    height: 60px;
  }
  
  .testimonial-controls {
    gap: 16px;
    padding: 16px;
  }
  
  .control-btn {
    width: 40px;
    height: 40px;
  }
  
  .control-btn svg {
    width: 16px;
    height: 16px;
  }
  
  .testimonial-stats {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .stat-item {
    padding: 16px;
  }
  
  .stat-number {
    font-size: 28px;
  }
}

@media (max-width: 480px) {
  .testimonial-slide {
    padding: 24px 16px;
  }
  
  .testimonial-text {
    font-size: 16px;
  }
  
  .quote-icon {
    width: 32px;
    height: 32px;
  }
  
  .testimonial-controls {
    flex-direction: column;
    gap: 16px;
  }
  
  .control-btn {
    width: 36px;
    height: 36px;
  }
  
  .testimonial-dots {
    order: -1;
  }
}

document.addEventListener('DOMContentLoaded', () => {
  const slider = document.getElementById('testimonialSlider');
  const track = document.getElementById('testimonialTrack');
  const slides = document.querySelectorAll('.testimonial-slide');
  const dots = document.querySelectorAll('.dot');
  const prevBtn = document.getElementById('prevBtn');
  const nextBtn = document.getElementById('nextBtn');
  const autoplayBtn = document.getElementById('autoplayBtn');
  const playIcon = autoplayBtn.querySelector('.play-icon');
  const pauseIcon = autoplayBtn.querySelector('.pause-icon');
  const autoplayText = autoplayBtn.querySelector('.autoplay-text');
  
  let currentSlide = 0;
  let isAutoplay = true;
  let autoplayInterval;
  const autoplayDelay = 5000; // 5 seconds
  
  // Initialize slider
  function initSlider() {
    updateSlider();
    startAutoplay();
    
    // Add intersection observer for animations
    const observer = new IntersectionObserver((entries) => {
      entries.forEach(entry => {
        if (entry.isIntersecting) {
          entry.target.style.animationDelay = '0s';
        }
      });
    });
    
    document.querySelectorAll('.stat-item').forEach(item => {
      observer.observe(item);
    });
  }
  
  // Update slider position and active states
  function updateSlider() {
    // Update track position
    track.style.transform = `translateX(-${currentSlide * 100}%)`;
    
    // Update slide active states
    slides.forEach((slide, index) => {
      slide.classList.toggle('active', index === currentSlide);
    });
    
    // Update dots
    dots.forEach((dot, index) => {
      dot.classList.toggle('active', index === currentSlide);
    });
    
    // Update navigation buttons
    prevBtn.disabled = currentSlide === 0;
    nextBtn.disabled = currentSlide === slides.length - 1;
  }
  
  // Go to specific slide
  function goToSlide(index) {
    if (index >= 0 && index < slides.length) {
      currentSlide = index;
      updateSlider();
      
      // Reset autoplay timer
      if (isAutoplay) {
        stopAutoplay();
        startAutoplay();
      }
    }
  }
  
  // Go to next slide
  function nextSlide() {
    const nextIndex = currentSlide + 1;
    if (nextIndex < slides.length) {
      goToSlide(nextIndex);
    } else if (isAutoplay) {
      // Loop back to first slide in autoplay mode
      goToSlide(0);
    }
  }
  
  // Go to previous slide
  function prevSlide() {
    const prevIndex = currentSlide - 1;
    if (prevIndex >= 0) {
      goToSlide(prevIndex);
    }
  }
  
  // Start autoplay
  function startAutoplay() {
    if (isAutoplay) {
      autoplayInterval = setInterval(() => {
        nextSlide();
      }, autoplayDelay);
      
      autoplayBtn.classList.add('active');
      playIcon.style.display = 'none';
      pauseIcon.style.display = 'block';
      autoplayText.textContent = 'Auto-play On';
    }
  }
  
  // Stop autoplay
  function stopAutoplay() {
    if (autoplayInterval) {
      clearInterval(autoplayInterval);
      autoplayInterval = null;
    }
    
    autoplayBtn.classList.remove('active');
    playIcon.style.display = 'block';
    pauseIcon.style.display = 'none';
    autoplayText.textContent = 'Auto-play Off';
  }
  
  // Toggle autoplay
  function toggleAutoplay() {
    isAutoplay = !isAutoplay;
    
    if (isAutoplay) {
      startAutoplay();
    } else {
      stopAutoplay();
    }
  }
  
  // Event listeners
  prevBtn.addEventListener('click', prevSlide);
  nextBtn.addEventListener('click', nextSlide);
  autoplayBtn.addEventListener('click', toggleAutoplay);
  
  // Dot navigation
  dots.forEach((dot, index) => {
    dot.addEventListener('click', () => {
      goToSlide(index);
    });
  });
  
  // Keyboard navigation
  document.addEventListener('keydown', (e) => {
    if (slider.matches(':hover') || document.activeElement.closest('.testimonial-slider')) {
      switch (e.key) {
        case 'ArrowLeft':
          prevSlide();
          break;
        case 'ArrowRight':
          nextSlide();
          break;
        case ' ':
          e.preventDefault();
          toggleAutoplay();
          break;
      }
    }
  });
  
  // Touch/swipe support for mobile
  let touchStartX = 0;
  let touchEndX = 0;
  let touchStartY = 0;
  let touchEndY = 0;
  
  slider.addEventListener('touchstart', (e) => {
    touchStartX = e.changedTouches[0].screenX;
    touchStartY = e.changedTouches[0].screenY;
  });
  
  slider.addEventListener('touchend', (e) => {
    touchEndX = e.changedTouches[0].screenX;
    touchEndY = e.changedTouches[0].screenY;
    handleSwipe();
  });
  
  function handleSwipe() {
    const swipeThreshold = 50;
    const diffX = touchStartX - touchEndX;
    const diffY = Math.abs(touchStartY - touchEndY);
    
    // Only handle horizontal swipes (ignore vertical scrolling)
    if (Math.abs(diffX) > swipeThreshold && diffY < 100) {
      if (diffX > 0) {
        // Swipe left - next slide
        nextSlide();
      } else {
        // Swipe right - previous slide
        prevSlide();
      }
    }
  }
  
  // Pause autoplay on hover
  slider.addEventListener('mouseenter', () => {
    if (isAutoplay && autoplayInterval) {
      clearInterval(autoplayInterval);
    }
  });
  
  slider.addEventListener('mouseleave', () => {
    if (isAutoplay) {
      startAutoplay();
    }
  });
  
  // Pause autoplay when tab is not visible
  document.addEventListener('visibilitychange', () => {
    if (document.hidden) {
      if (autoplayInterval) {
        clearInterval(autoplayInterval);
      }
    } else if (isAutoplay) {
      startAutoplay();
    }
  });
  
  // Animate statistics on scroll
  function animateStats() {
    const stats = document.querySelectorAll('.stat-number');
    const observer = new IntersectionObserver((entries) => {
      entries.forEach(entry => {
        if (entry.isIntersecting) {
          const target = entry.target;
          const finalValue = target.textContent;
          
          // Extract number from text
          const match = finalValue.match(/([0-9.]+)/);
          if (match) {
            const number = parseFloat(match[1]);
            const suffix = finalValue.replace(match[0], '');
            
            animateNumber(target, 0, number, suffix, 2000);
            observer.unobserve(target);
          }
        }
      });
    });
    
    stats.forEach(stat => observer.observe(stat));
  }
  
  function animateNumber(element, start, end, suffix, duration) {
    const startTime = performance.now();
    
    function update(currentTime) {
      const elapsed = currentTime - startTime;
      const progress = Math.min(elapsed / duration, 1);
      
      // Easing function
      const easeOut = 1 - Math.pow(1 - progress, 3);
      const current = start + (end - start) * easeOut;
      
      // Format number based on original format
      let displayValue;
      if (end % 1 === 0) {
        displayValue = Math.floor(current);
      } else {
        displayValue = current.toFixed(1);
      }
      
      element.textContent = displayValue + suffix;
      
      if (progress < 1) {
        requestAnimationFrame(update);
      }
    }
    
    requestAnimationFrame(update);
  }
  
  // Initialize everything
  initSlider();
  animateStats();
  
  // Add focus management for accessibility
  slider.addEventListener('focusin', () => {
    if (isAutoplay && autoplayInterval) {
      clearInterval(autoplayInterval);
    }
  });
  
  slider.addEventListener('focusout', (e) => {
    // Only restart autoplay if focus is completely leaving the slider
    setTimeout(() => {
      if (!slider.contains(document.activeElement) && isAutoplay) {
        startAutoplay();
      }
    }, 100);
  });
});