*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:#f5f5f5;color:#333;min-height:100dvh}#app{max-width:480px;margin:0 auto;padding:16px}header{text-align:center;padding:16px 0}header h1{font-size:1.25rem;color:#1a73e8}.screen{display:none}.screen.active{display:block}h2{font-size:1.1rem;margin-bottom:16px;text-align:center}p{text-align:center;margin-bottom:16px;color:#666}.btn{display:block;width:100%;padding:14px 20px;border:none;border-radius:8px;font-size:1rem;cursor:pointer;transition:background-color .2s}.btn+.btn{margin-top:12px}.btn-primary{background:#1a73e8;color:#fff}.btn-primary:active{background:#1557b0}.btn-secondary{background:#e0e0e0;color:#333}.btn-secondary:active{background:#bdbdbd}.btn-event{background:#fff;color:#333;border:1px solid #ddd;text-align:left;padding:16px 20px}.btn-event:active{background:#e8f0fe}.btn-event small{color:#888;font-size:.85rem}#passcode-form{margin-bottom:12px}input[type=text]{display:block;width:100%;padding:14px 16px;border:2px solid #ddd;border-radius:8px;font-size:1.25rem;text-align:center;letter-spacing:.3em;margin-bottom:12px}input[type=text]:focus{outline:none;border-color:#1a73e8}#qr-reader{margin-bottom:16px;border-radius:8px;overflow:hidden}#scan-result{padding:20px;border-radius:8px;margin-bottom:16px;text-align:center;font-size:1.1rem;font-weight:700;white-space:pre-line}.result-success{background:#e6f4ea;color:#1e7e34;border:2px solid #34a853}.result-error{background:#fce8e6;color:#c5221f;border:2px solid #ea4335}.result-processing{background:#e8f0fe;color:#1a73e8;border:2px solid #1a73e8}.loading{text-align:center;padding:32px;color:#888}.error{text-align:center;padding:16px;color:#c5221f;background:#fce8e6;border-radius:8px}