Barras de Habilidades Animadas

.skills-container {
  background: linear-gradient(135deg, #f8f9ff 0%, #ffffff 100%);
  padding: 40px 20px;
  border-radius: 20px;
  max-width: 700px;
  margin: 0 auto;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.skills-demo {
  background: white;
  border-radius: 15px;
  padding: 30px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.03);
}

.skills-header {
  text-align: center;
  margin-bottom: 30px;
}

.skills-header h2 {
  margin: 0 0 10px 0;
  color: #333;
  font-size: 2rem;
  font-weight: 700;
}

.skills-header p {
  color: #666;
  font-size: 1.1rem;
  margin: 0;
}

.skills-list {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.skill-item {
  animation: slideInUp 0.6s ease-out;
}

.skill-item:nth-child(1) { animation-delay: 0.1s; }
.skill-item:nth-child(2) { animation-delay: 0.2s; }
.skill-item:nth-child(3) { animation-delay: 0.3s; }
.skill-item:nth-child(4) { animation-delay: 0.4s; }
.skill-item:nth-child(5) { animation-delay: 0.5s; }

.skill-info {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
}

.skill-name {
  font-weight: 600;
  color: #333;
  font-size: 1.1rem;
}

.skill-percent {
  font-weight: 700;
  color: #667eea;
  font-size: 1.1rem;
}

.skill-bar {
  height: 12px;
  background: #e2e8f0;
  border-radius: 6px;
  overflow: hidden;
  position: relative;
}

.skill-progress {
  height: 100%;
  background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
  border-radius: 6px;
  width: 0%;
  transition: width 2s cubic-bezier(0.22, 0.61, 0.36, 1);
  position: relative;
}

.skill-progress::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  animation: shimmer 2s infinite;
}

/* Animaciones */
@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

/* Responsivo */
@media (max-width: 768px) {
  .skills-container {
    padding: 30px 15px;
  }
  
  .skills-demo {
    padding: 20px;
  }
  
  .skills-header h2 {
    font-size: 1.7rem;
  }
  
  .skill-info {
    flex-direction: column;
    gap: 5px;
  }
  
  .skill-percent {
    text-align: right;
  }
}

document.addEventListener('DOMContentLoaded', function() {
  // Obtener todos los elementos de progreso de habilidades
  const skillProgresses = document.querySelectorAll('.skill-progress');
  
  // Función para animar las barras de habilidades
  function animateSkillBars() {
    skillProgresses.forEach(progress => {
      const percent = progress.getAttribute('data-percent');
      progress.style.width = `${percent}%`;
    });
  }
  
  // Función para animar los números de porcentaje
  function animatePercentages() {
    const percentElements = document.querySelectorAll('.skill-percent');
    
    percentElements.forEach(element => {
      const targetPercent = parseInt(element.getAttribute('data-percent'));
      let currentPercent = 0;
      const duration = 2000; // 2 segundos
      const increment = targetPercent / (duration / 16);
      
      const interval = setInterval(() => {
        currentPercent += increment;
        if (currentPercent >= targetPercent) {
          currentPercent = targetPercent;
          clearInterval(interval);
        }
        element.textContent = Math.round(currentPercent) + '%';
      }, 16);
    });
  }
  
  // Inicializar animaciones
  animateSkillBars();
  animatePercentages();
  
  // Reanimar cuando el elemento entra en la vista
  const observer = new IntersectionObserver((entries) => {
    entries.forEach(entry => {
      if (entry.isIntersecting) {
        // Restablecer anchos
        skillProgresses.forEach(progress => {
          progress.style.width = '0%';
        });
        
        // Reanimar
        setTimeout(() => {
          animateSkillBars();
          animatePercentages();
        }, 100);
        
        // Dejar de observar después de la primera animación
        observer.unobserve(entry.target);
      }
    });
  }, { threshold: 0.5 });
  
  // Observar el contenedor de habilidades
  const skillsContainer = document.querySelector('.skills-container');
  if (skillsContainer) {
    observer.observe(skillsContainer);
  }
});