body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:#f4f7f6;color:#333;margin:0;padding:20px}.container{max-width:900px;margin:0 auto}header h1{color:#000;text-align:center;border-bottom:2px solid #000000;padding-bottom:10px}.upload-section{display:grid;grid-template-columns:1fr;gap:20px;margin-bottom:30px}.upload-box{background:#fff;padding:20px;border-radius:8px;box-shadow:0 2px 4px #0000001a;border:1px solid #e1e1e1}.upload-box h2{margin-top:0;color:#000}input[type=file]{margin-top:10px}.error-message{color:#e74c3c;background-color:#fbe2e2;padding:10px;border-radius:5px;text-align:center}.viewer-container .card{background:#fff;border-radius:8px;padding:25px;margin-bottom:20px;box-shadow:0 4px 8px #0000001a}.viewer-container h1,.viewer-container h2,.viewer-container h3,.viewer-container h4{margin:0 0 15px}.viewer-container h1{font-size:1.8em;color:#000}.viewer-container h2{font-size:1.5em;color:#000;border-bottom:1px solid #eee;padding-bottom:8px}.viewer-container h3{font-size:1.2em;color:#000;margin-top:20px}.viewer-container h4{font-size:1.1em;color:#000}.claim{border-left:3px solid #bdc3c7;padding-left:15px;margin-bottom:15px}.drawings-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}.drawing{text-align:center}p{line-height:1.7;margin:0 0 1em}.status-message{margin-top:15px;font-style:italic;color:#555;background-color:#f8f9fa;padding:8px;border-radius:4px}