.app {
  min-height: 100vh;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 20px;
}

.container {
  max-width: 800px;
  margin: 0 auto;
}

.header {
  text-align: center;
  color: white;
  margin-bottom: 40px;
  animation: slideDown 0.6s ease-out;
}

.header h1 {
  font-size: 2.5rem;
  margin-bottom: 10px;
  font-weight: 700;
}

.header p {
  font-size: 1.1rem;
  opacity: 0.9;
}

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

.error-message {
  background-color: #ef5350;
  color: white;
  padding: 15px 20px;
  border-radius: 8px;
  margin-bottom: 20px;
  animation: pulse 0.3s ease-out;
}

.loading {
  text-align: center;
  color: white;
  font-size: 1.2rem;
  padding: 40px 20px;
}

.empty-state {
  text-align: center;
  color: white;
  padding: 60px 20px;
  font-size: 1.1rem;
}

.tasks-list {
  transition: background-color 0.2s ease;
}

.tasks-list.dragging {
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  padding: 10px;
}

@keyframes pulse {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@media (max-width: 768px) {
  .header h1 {
    font-size: 1.8rem;
  }

  .header p {
    font-size: 1rem;
  }
}