:root {
            --primary: #0d6efd;
            --hover: #3399ff;
            --background: #1a1a2e;
            /*--panel: #2e2e48;*/
            --panel: #16213e;
            --text: #f8f9fa;
            --gray: #ced4da;
        }

        * {
            box-sizing: border-box;
        }

        body {
            margin: 0;
            font-family: 'Segoe UI', sans-serif;
            background-color: var(--background);
            color: var(--text);
            overflow-x:hidden
        }

        a {
            color: #0dcaf0;
            text-decoration: none;
        }

        a:hover {
            text-decoration: underline;
        }

        a:focus {
            color: #0dcaf0;
            text-decoration: none;
            outline: none;
        }

        .container {
            max-width: 1140px;
            margin: auto;
            padding: 20px;
            overflow-x:hidden
        }

        .logo {
            text-align: center;
            margin-bottom: 10px;
        }

        .logo img {
            max-height: 60px;
        }

        .top-link {
            text-align: center;
            margin-bottom: 20px;
        }

        .top-link a {
            font-size: 22px;
            font-weight: 500;
        }

        h2 {
            text-align: center;
            margin-bottom: 24px;
            font-weight: 600;
        }

        .row {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
        }

        .col {
            flex: 1 1 350px;
            background: var(--panel);
            padding: 20px;
            border-radius: 10px;
            border: 1px solid #3a3a5e;
        }

        label {
            display: block;
            margin-top: 10px;
            font-weight: 400;
            color: #dcdcdc;
        }

        input[type="text"],
        input[type="number"],
        select,
        input[type="file"] {
            width: 100%;
            padding: 8px 10px;
            margin-top: 4px;
            border-radius: 5px;
            border: 1px solid var(--gray);
            font-size: 14px;
            background-color: #fff;
            color: #000;
        }

        input[type="color"] {
            height: 38px;
            padding: 2px;
            border-radius: 5px;
            width: 100%;
            border: 1px solid var(--gray);
            background-color: #fff;
            cursor: pointer;
            box-sizing: border-box;
        }

        .button-row {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
            gap: 10px;
            margin-top: 20px;
        }

        button {
            padding: 10px;
            background-color: #2277dd;
            color: white;
            font-weight: 500;
            border: none;
            border-radius: 6px;
            cursor: pointer;
            transition: 0.2s ease;
        }

        button:hover {
            background-color: var(--hover);
        }

        #removeLogo {
            background-color: #ffc107;
            color: #000;
            margin-top: 10px;
        }

        #qr-preview {
            text-align: center;
            background: white;
            padding: 10px;
            border-radius: 10px;
            border: 1px solid var(--gray);
            display: inline-block;
            margin-top: 10px;
        }


        @media (max-width: 768px) {
            .row {
                flex-direction: column;
                overflow-x:hidden
            }
        }

        .footer {
            position: relative;
            margin-top: -10px;
            padding: 0;
            text-align: center;
            font-size: 14px;
            line-height: 30px;
        }