*{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{position:relative;width:100%;max-width:400px;aspect-ratio:1 / 1;margin:0 auto 16px;border-radius:8px;overflow:hidden;background:#000}#qr-reader video{width:100%!important;height:100%!important;object-fit:cover}.camera-error{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:24px;color:#fff;text-align:center;background:#000000b3}.camera-error-title{font-size:1rem;font-weight:700}.camera-error-detail{font-size:.85rem;color:#ddd;word-break:break-word}.camera-error-hint{font-size:.8rem;color:#bbb}#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}.checkin-popup-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .2s ease}.checkin-popup{background:#fff;border-radius:16px;padding:32px 24px;text-align:center;width:85%;max-width:340px;box-shadow:0 8px 32px #0003;animation:popIn .3s ease}.checkin-popup-icon{width:64px;height:64px;margin:0 auto 16px;background:#34a853;color:#fff;border-radius:50%;font-size:2rem;line-height:64px;font-weight:700}.checkin-popup--already .checkin-popup-icon{background:#f29900}.checkin-popup--already .checkin-popup-title{color:#b06000}.checkin-popup-title{font-size:1.25rem;font-weight:700;color:#1e7e34;margin-bottom:16px}.checkin-popup-id{font-size:2rem;font-weight:700;color:#1a73e8;margin-bottom:8px;letter-spacing:.05em}.checkin-popup-name{font-size:1.1rem;color:#333;margin-bottom:16px}.checkin-popup-hint{font-size:.8rem;color:#999}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes popIn{0%{transform:scale(.8);opacity:0}to{transform:scale(1);opacity:1}}.scanner-status{text-align:center;font-size:.85rem;color:#1e7e34;background:#e6f4ea;padding:6px 12px;border-radius:4px;margin-bottom:12px}.scanner-status.status-error{color:#c5221f;background:#fce8e6}