*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);min-height:100vh}.container{max-width:1200px;margin:0 auto;padding:20px;min-height:100vh;display:flex;flex-direction:column}.header{background:rgba(255,255,255,.95);border-radius:12px;padding:30px;margin-bottom:30px;text-align:center;box-shadow:0 8px 32px #0000001a;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.header h1{color:#333;margin-bottom:10px;font-size:2.5rem}.header p{color:#666;font-size:1.1rem}.card{background:rgba(255,255,255,.95);border-radius:12px;padding:30px;margin-bottom:20px;box-shadow:0 8px 32px #0000001a;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.keys-section{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px;margin-bottom:30px}.key-card{background:#f8f9fa;border-radius:8px;padding:20px;border-left:4px solid #007bff}.key-card h3{color:#333;margin-bottom:15px;font-size:1.2rem}.key-value{background:#e9ecef;padding:10px;border-radius:4px;font-family:Courier New,monospace;font-size:12px;word-break:break-all;margin-bottom:10px;border:1px solid #dee2e6}.copy-btn{background:#007bff;color:#fff;border:none;padding:8px 16px;border-radius:4px;cursor:pointer;font-size:12px;margin-right:10px}.copy-btn:hover{background:#0056b3}.qr-section{text-align:center;margin:20px 0}.qr-code{background:white;padding:20px;border-radius:8px;display:inline-block;box-shadow:0 4px 8px #0000001a}.image-display{text-align:center;margin-top:30px}.current-image{max-width:100%;max-height:400px;border-radius:8px;box-shadow:0 4px 8px #0000001a;margin:20px 0}.no-image{background:#f8f9fa;border:2px dashed #dee2e6;border-radius:8px;padding:40px;color:#6c757d;font-size:1.1rem}.status{display:inline-block;padding:4px 12px;border-radius:20px;font-size:12px;font-weight:500;margin-left:10px}.status.connected{background:#d4edda;color:#155724}.status.disconnected{background:#f8d7da;color:#721c24}.status.loading{background:#fff3cd;color:#856404}.refresh-btn{background:#28a745;color:#fff;border:none;padding:10px 20px;border-radius:4px;cursor:pointer;font-size:14px;margin:10px}.refresh-btn:hover{background:#218838}.refresh-btn:disabled{background:#6c757d;cursor:not-allowed}.info-text{color:#666;font-size:14px;margin:10px 0;line-height:1.5}.error{color:#dc3545;background:#f8d7da;padding:10px;border-radius:4px;margin:10px 0}.success{color:#155724;background:#d4edda;padding:10px;border-radius:4px;margin:10px 0}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;color:#333;font-weight:500}.form-control{width:100%;padding:10px;border:1px solid #ddd;border-radius:4px;font-size:14px}.btn{padding:10px 20px;border:none;border-radius:4px;cursor:pointer;font-size:14px;font-weight:500;transition:background-color .2s}.btn-primary{background:#007bff;color:#fff}.btn-primary:hover:not(:disabled){background:#0056b3}.btn-primary:disabled{background:#6c757d;cursor:not-allowed}.btn-secondary{background:#6c757d;color:#fff}.btn-secondary:hover{background:#5a6268}.alert{padding:12px;border-radius:4px;margin:15px 0}.alert-success{background:#d4edda;color:#155724;border:1px solid #c3e6cb}.alert-danger{background:#f8d7da;color:#721c24;border:1px solid #f5c6cb}.paired-badge{color:#28a745;font-weight:500;margin-left:10px}.form-control-range{width:100%;height:8px;border-radius:4px;background:#ddd;outline:none;-webkit-appearance:none;-moz-appearance:none;appearance:none}.form-control-range::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:20px;height:20px;border-radius:50%;background:#007bff;cursor:pointer;border:2px solid #fff;box-shadow:0 2px 4px #0003}.form-control-range::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:#007bff;cursor:pointer;border:2px solid #fff;box-shadow:0 2px 4px #0003}.form-control-range:disabled{opacity:.6;cursor:not-allowed}.form-control-range:disabled::-webkit-slider-thumb{background:#6c757d;cursor:not-allowed}.form-control-range:disabled::-moz-range-thumb{background:#6c757d;cursor:not-allowed}#saturation-value{font-weight:600;color:#007bff}