/* Base Button Styles */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            position: relative;
            padding: 12px 24px;
            border-radius: 8px;
            font-family: 'Segoe UI', Roboto, -apple-system, sans-serif;
            font-size: 14px;
            font-weight: 600;
            line-height: 1;
            text-align: center;
            text-decoration: none;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            outline: none;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
            overflow: hidden;
            min-width: 120px;
        }

        /* Primary Button */
        .btn-default {
            color: white;
            background: linear-gradient(135deg, #8A2BE2 0%, #A569BD 100%);
        }

        .btn-default:hover {
            color: white;
            background: linear-gradient(135deg, #7B1FA2 0%, #8E44AD 100%);
            box-shadow: 0 4px 8px rgba(138, 43, 226, 0.3);
            transform: translateY(-1px);
        }

        .btn-default:active {
            background: linear-gradient(135deg, #6A1B9A 0%, #7D3C98 100%);
            box-shadow: 0 2px 4px rgba(138, 43, 226, 0.3);
            transform: translateY(0);
        }

        /* default2 Button */
        .btn-default2 {
            color: #8A2BE2;
            background: linear-gradient(135deg, #f9f9f9 0%, #f0f0f0 100%);
            border: 1px solid #e0e0e0;
        }

        .btn-default2:hover {
            background: linear-gradient(135deg, #f0f0f0 0%, #e8e8e8 100%);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
            transform: translateY(-1px);
            border-color: #d0d0d0;
        }

        .btn-default2:active {
            background: linear-gradient(135deg, #e8e8e8 0%, #e0e0e0 100%);
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
            transform: translateY(0);
        }

        /* Processing State */
        .btn-processing {
            pointer-events: none;
            position: relative;
            color: transparent !important;
        }

        .btn-processing::after {
            content: "";
            position: absolute;
            width: 18px;
            height: 18px;
            border: 3px solid rgba(255, 255, 255, 0.3);
            border-top-color: white;
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

        .btn-default2.btn-processing::after {
            border: 3px solid rgba(138, 43, 226, 0.1);
            border-top-color: #8A2BE2;
        }

        /* Focus State */
        .btn:focus-visible {
            outline: 2px solid #8A2BE2;
            outline-offset: 2px;
        }

        /* Disabled State */
        .btn:disabled {
            opacity: 0.6;
            cursor: not-allowed;
            transform: none !important;
        }

        /* Animation */
        @keyframes spin {
            to {
                transform: rotate(360deg);
            }
        }

        /* Container for demo */
        .button-container {
            display: flex;
            gap: 16px;
            padding: 24px;
        }