src/components/FileUpload.css

.upload-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3rem;
  max-width: 600px;
  width: 100%;
}

.upload-area {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border: 2px dashed #ddd;
  border-radius: 20px;
  padding: 3rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  width: 100%;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.upload-area:hover,
.upload-area.drag-over {
  border-color: #667eea;
  background: rgba(255, 255, 255, 0.98);
  transform: translateY(-5px);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.upload-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.upload-icon {
  color: #667eea;
  opacity: 0.8;
}

.upload-area h2 {
  color: #333;
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0;
}

.upload-area p {
  color: #666;
  font-size: 1rem;
  margin: 0;
  line-height: 1.5;
}

.supported-formats {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

.format-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(102, 126, 234, 0.1);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  color: #667eea;
  font-size: 0.9rem;
  font-weight: 500;
}

.upload-button {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.upload-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 30px rgba(102, 126, 234, 0.4);
}

.info-section {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  padding: 2rem;
  width: 100%;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.info-section h3 {
  color: #333;
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.steps {
  display: flex;
  justify-content: space-around;
  gap: 1rem;
  flex-wrap: wrap;
}

.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  flex: 1;
  min-width: 120px;
}

.step-number {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 1.1rem;
}

.step p {
  color: #666;
  font-size: 0.9rem;
  margin: 0;
  text-align: center;
}

@media (max-width: 768px) {
  .upload-container {
    gap: 2rem;
  }
  
  .upload-area {
    padding: 2rem 1.5rem;
  }
  
  .upload-area h2 {
    font-size: 1.25rem;
  }
  
  .supported-formats {
    gap: 0.5rem;
  }
  
  .format-item {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
  }
  
  .steps {
    flex-direction: column;
    gap: 1.5rem;
  }
  
  .step {
    flex-direction: row;
    text-align: left;
  }
}