.payment-container {
            background: #ffffff;
            width: 100%;
            max-width: 800px;
            padding: 30px;
            border-radius: 4px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }

        h2 {
            color: #1f2937;
            font-size: 22px;
            margin-top: 0;
            margin-bottom: 25px;
            font-weight: bold;
        }

        .form-row {
            display: flex;
            gap: 20px;
            margin-bottom: 20px;
        }

        .form-group {
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .form-group.full-width {
            flex: 100%;
        }

        label {
            font-size: 13px;
            color: #4b5563;
            margin-bottom: 8px;
        }

        input[type="text"],
        input[type="email"],
        input[type="tel"] {
            padding: 10px 12px;
            border: 1px solid #d1d5db;
            border-radius: 4px;
            font-size: 14px;
            color: #1f2937;
            outline: none;
            transition: border-color 0.2s;
        }

        input[type="text"]:focus,
        input[type="email"]:focus,
        input[type="tel"]:focus {
            border-color: #3b82f6;
        }

        input::placeholder {
            color: #9ca3af;
        }

        /* Fixed / Disabled Inputs */
        input[readonly] {
            background-color: #f9fafb;
            color: #374151;
            cursor: not-allowed;
        }

        /* Payment Mode Box */
        .payment-mode-box {
            border: 2px solid #3b82f6;
            border-radius: 6px;
            padding: 15px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 350px;
            background-color: #fff;
        }

        .payment-mode-info .mode-title {
            font-style: italic;
            font-weight: bold;
            color: #111827;
            font-size: 16px;
            margin-bottom: 4px;
        }

        .payment-mode-info .mode-sub {
            font-size: 12px;
            color: #4b5563;
        }

        .payment-mode-box input[type="radio"] {
            accent-color: #3b82f6;
            width: 16px;
            height: 16px;
        }

        /* Captcha Section */
        .captcha-container {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-top: 5px;
        }

        .captcha-box {
            background-color: #f3f4f6;
            border: 1px dashed #9ca3af;
            padding: 8px 15px;
            font-family: monospace;
            font-size: 20px;
            letter-spacing: 4px;
            font-weight: bold;
            color: #374151;
            user-select: none;
            border-radius: 4px;
        }

        .reload-text {
            font-size: 13px;
            color: #374151;
        }

        .reload-text a {
            color: #000;
            font-weight: bold;
            text-decoration: none;
            cursor: pointer;
        }

        .reload-text a:hover {
            text-decoration: underline;
        }

        /* Resized & Styled Buttons */
        .button-group {
            display: flex;
            gap: 20px;
            margin-top: 30px;
        }

        .btn {
            padding: 16px 36px; /* Enlarged padding */
            border: none;
            border-radius: 8px; /* Softer, larger rounded corners */
            font-size: 18px; /* Larger text */
            font-weight: bold;
            cursor: pointer;
            transition: all 0.2s ease;
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .btn:active {
            transform: scale(0.97);
        }

        .btn-primary {
            background: linear-gradient(135deg, #06b6d4, #3b82f6); /* Bright Cyan to Vibrant Blue Gradient */
            color: white;
            box-shadow: 0 6px 15px rgba(59, 130, 246, 0.4);
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, #0891b2, #2563eb);
            box-shadow: 0 8px 20px rgba(59, 130, 246, 0.6);
        }

        .btn-secondary {
            background: linear-gradient(135deg, #f43f5e, #e11d48); /* Rose to Vivid Red Gradient */
            color: white;
            box-shadow: 0 6px 15px rgba(244, 63, 94, 0.4);
        }

        .btn-secondary:hover {
            background: linear-gradient(135deg, #e11d48, #be123c);
            box-shadow: 0 8px 20px rgba(244, 63, 94, 0.6);
        }