:root{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.5;font-weight:400;--mobile-padding: .5rem;--tablet-padding: 1rem;--desktop-padding: 1.5rem;color-scheme:light;color:#000;background-color:#fff;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-text-size-adjust:100%}html{height:100%;overflow-x:hidden}body{margin:0;padding:0;min-height:100vh;height:100%;width:100%;overflow-x:hidden;position:relative}#root{min-height:100vh;height:100%;width:100%;display:flex;flex-direction:column}@supports (height: 100dvh){body,#root{min-height:100dvh;height:100dvh}}a{font-weight:500;color:#2563eb;text-decoration:inherit}a:hover{color:#1d4ed8}button,input,select,textarea{font-family:inherit;font-size:inherit;line-height:inherit}@media (hover: none) and (pointer: coarse){button,input,select,textarea{min-height:44px}}.qr-scanner{margin-top:2rem;padding:2rem;background:#f8fafc;border-radius:12px;border:2px dashed #cbd5e1}.qr-scanner h2{text-align:center;color:#1e293b;margin-bottom:1rem;font-size:1.5rem}.description{text-align:center;color:#64748b;margin-bottom:2rem;font-size:.9rem;line-height:1.6}.qr-scanner-container{position:relative;max-width:400px;margin:0 auto 16px;border:2px solid #007bff;border-radius:8px;overflow:hidden;background:#000}.qr-scanner-container video{width:100%;height:auto;display:block}.scanner-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;pointer-events:none}.scanner-frame{width:200px;height:200px;border:2px solid #00ff00;border-radius:8px;position:relative;animation:pulse 2s infinite}@keyframes pulse{0%{box-shadow:0 0 #00ff00b3}70%{box-shadow:0 0 0 20px #0f00}to{box-shadow:0 0 #0f00}}.scanner-text{position:absolute;top:-30px;left:50%;transform:translate(-50%);color:#0f0;font-size:14px;font-weight:700;text-shadow:1px 1px 2px rgba(0,0,0,.8)}.mode-toggle-btn{padding:10px 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