/* General Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  background-color: #f5f5f5;
  color: #333;
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
  text-align: center;
}

.header {
  margin-bottom: 2rem;
}

.header h1 {
  font-size: 2.5rem;
  color: #4CAF50;
}

.header p {
  font-size: 1.2rem;
  color: #666;
}

.main-content {
  background-color: white;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.upload-section,
.process-section,
.download-section {
  margin-bottom: 2rem;
}

.hidden {
  display: none;
}

.preview-container {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin: 1rem 0;
}

.preview-image {
  max-width: 150px;
  height: auto;
  border: 2px solid #ddd;
  border-radius: 8px;
}

.download-container {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.btn {
  padding: 0.8rem 1.5rem;
  border: none;
  border-radius: 4px;
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.btn-primary {
  background-color: #4CAF50;
  color: white;
}

.btn-success {
  background-color: #2196F3;
  color: white;
}

.footer {
  margin-top: 2rem;
  font-size: 0.9rem;
  color: #666;
}