body { font-family: Arial, sans-serif; padding: 20px; background-color: #f9fafb; }
.container { max-width: 800px; margin: 0 auto; }
.search-bar { width: 100%; padding: 12px; margin-bottom: 20px; box-sizing: border-box; }
.document-card { padding: 20px; border: 1px solid #e5e7eb; border-radius: 8px; margin-bottom: 15px; background: white; }
.category-tag { font-size: 0.85em; color: #6b7280; }