.container {
            max-width: 900px;
        }
        
        .card {
            background: #4a5e7aad;
        }
        
        h2 {
            color: #fff;
        }
        
        .form-label {
          color: #fff;
        }
        
        #downloadPngBtn, #downloadSvgBtn {
            display: none;
        }
        #loading {
            display: none;
        }
        .qr-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }
        .settings-container {
            flex: 1;
        }
        .qr-display {
          flex: 1;
          text-align: center;
          border: 2px solid #77777759;
          border-radius: 10px;
          padding: 10px;
          background: #4f5d72;
          min-height: 250px;
          display: flex;
          align-items: center;
          justify-content: center;
        }
        .qr-image {
            max-width: 100%;
            max-height: 100%;
        }

        button {
            background: #00c4cc !important;
            border: 1px solid #00c4cc !important;
            text-shadow: 0px 0px 5px #0000007d;
        }
     
        button:hover {
            transition: 0.3s;
            background: #08e4ed !important;
        }

        .form-control::placeholder {
          color: #b4b4b4;
          opacity: 1;
        }
     
        .card {
            border: 2px solid #4a5e7a36;
            background: #4a5e7a3d;
        }
        
        input, select {
          background: #4f5d72!important;
          border: 1px solid #5d6673!important;
          color: #fff!important;
        }