:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}.qr-generator{max-width:400px;margin:20px auto;padding:20px;background:#fff;color:#000;border-radius:10px;box-shadow:0 4px 6px #0000001a;text-align:center}.qr-generator h2{font-size:24px;margin-bottom:15px}.qr-generator input,.qr-generator select{width:100%;padding:8px;margin:10px 0;font-size:16px;border:1px solid #ddd;border-radius:5px}.qr-generator button{background-color:#28a745;color:#fff;border:none;padding:10px 15px;margin-top:15px;cursor:pointer;border-radius:5px;font-size:16px;transition:background .3s}.qr-generator button:hover{background:#218838}.qr-scanner{max-width:600px;margin:20px auto;padding:20px;background-color:#fff;color:#000;border-radius:10px;box-shadow:0 4px 6px #0000001a;text-align:center}.qr-scanner h2{font-size:24px;margin-bottom:15px}.qr-scanner input[type=file]{margin-top:15px;padding:10px;font-size:16px}.qr-scanner p{font-size:18px;margin-top:15px}.qr-scanner canvas{width:100%;margin-top:15px;max-width:400px;border:1px solid #ddd;border-radius:5px}.qr-scanner .cam-inp{border:1px solid whitesmoke}.qr-history{width:100%;max-width:400px;text-align:center;padding:20px;background-color:#fff;color:#000;border-radius:10px;box-shadow:0 4px 8px #0000001a}.qr-history ul{list-style:none;padding:0}.qr-history li{background-color:#f8f9fa;padding:10px;margin:5px 0;border-radius:5px;box-shadow:0 2px 4px #0000001a}nav{background-color:#007bff;padding:15px}nav ul{list-style:none;display:flex;justify-content:center;gap:20px;margin:0;padding:0}nav ul li{display:inline}nav ul li a{text-decoration:none;color:#fff;font-size:18px;padding:8px 12px;border-radius:5px;transition:background .3s}nav ul li a:hover,nav ul li .active{background:#0056b3}body{font-family:Arial,sans-serif;background-color:#f8f9fa;margin:0;padding:0}.app{text-align:center}.dark-mode{background-color:#121212;color:#fff}.dark-mode .qr-generator,.dark-mode .qr-scanner,.dark-mode .qr-history{background:#1e1e1e;color:#fff}.dark-mode .qr-generator input,.dark-mode .qr-generator select,.dark-mode .qr-scanner input{background:#2c2c2c;color:#fff;border:1px solid #444}.dark-mode .qr-scanner QrReader{border:1px solid white}.dark-mode .theme-toggle{background-color:#ff9800}.dark-mode .theme-toggle:hover{background-color:#e68900}