.alert-bar {
            background: linear-gradient(135deg, var(--rgba-secondary-01) 0%, var(--rgba-primary-02) 100%);
            box-shadow: 0 4px 20px rgba(102, 126, 234, 0.3);
            position: relative;
            overflow: hidden;
            animation: slideDown 0.8s ease-out;
        }

        .alert-bar::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
            animation: shimmer 3s infinite;
        }

        .alert-bar-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 16px 20px;
            display: flex;
            align-items: center;
            gap: 20px;
            position: relative;
            z-index: 2;
        }

        .alert-icon {
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(10px);
            border-radius: 50%;
            width: 50px;
            height: 50px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            animation: pulse 2s infinite;
        }

        .alert-icon i {
            color: #fff;
            font-size: 20px;
            animation: bell-ring 2s infinite;
        }

        .alert-text {
            flex: 1;
            color: white;
        }

        .alert-text h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 4px;
            text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
        }

        .alert-text p {
            font-size: 14px;
            opacity: 0.9;
            font-weight: 300;
        }

        .alert-button .btn {
            background: rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: white;
            padding: 10px 24px;
            border-radius: 25px;
            text-decoration: none;
            font-weight: 500;
            font-size: 14px;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }

        .alert-button .btn:hover {
            background: rgba(255, 255, 255, 0.3);
            transform: translateY(-2px);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
        }

        .alert-button .btn::after {
            content: '\f054';
            font-family: 'Font Awesome 5 Free';
            font-weight: 900;
            transition: transform 0.3s ease;
        }

        .alert-button .btn:hover::after {
            transform: translateX(3px);
        }

        .close-btn {
            background: none;
            border: none;
            color: rgba(255, 255, 255, 0.7);
            font-size: 18px;
            cursor: pointer;
            padding: 5px;
            border-radius: 50%;
            transition: all 0.3s ease;
            width: 30px;
            height: 30px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .close-btn:hover {
            background: rgba(255, 255, 255, 0.1);
            color: white;
            transform: rotate(90deg);
        }

        /* Demo content */
        .demo-content {
            flex: 1;
            padding: 40px 20px;
            max-width: 1200px;
            margin: 0 auto;
            text-align: center;
        }

        .demo-content h1 {
            color: #333;
            margin-bottom: 20px;
            font-size: 2.5rem;
        }

        .demo-content p {
            color: #666;
            font-size: 1.1rem;
            line-height: 1.6;
        }

        /* Animations */
        @keyframes slideDown {
            from {
                transform: translateY(-100%);
                opacity: 0;
            }
            to {
                transform: translateY(0);
                opacity: 1;
            }
        }

        @keyframes shimmer {
            0% {
                left: -100%;
            }
            100% {
                left: 100%;
            }
        }

        @keyframes pulse {
            0%, 100% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.05);
            }
        }

        @keyframes bell-ring {
            0%, 50%, 100% {
                transform: rotate(0deg);
            }
            10%, 30% {
                transform: rotate(-10deg);
            }
            20%, 40% {
                transform: rotate(10deg);
            }
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .alert-bar-content {
                padding: 12px 16px;
                gap: 15px;
            }

            .alert-icon {
                width: 40px;
                height: 40px;
            }

            .alert-icon i {
                font-size: 16px;
            }

            .alert-text h3 {
                font-size: 16px;
            }

            .alert-text p {
                font-size: 13px;
            }

            .alert-button .btn {
                padding: 8px 16px;
                font-size: 13px;
            }
        }

        @media (max-width: 480px) {
            .alert-bar-content {
                flex-wrap: wrap;
                text-align: center;
            }

            .alert-text {
                order: -1;
                width: 100%;
                margin-bottom: 10px;
            }

            .alert-button {
                flex: 1;
            }

            .alert-button .btn {
                width: 100%;
                justify-content: center;
            }
        }

        /* Alternative Color Schemes */
        .alert-bar.warm {
            background: linear-gradient(135deg, #ff9a56 0%, #ff6b35 100%);
        }

        .alert-bar.teal {
            background: linear-gradient(135deg, #4ecdc4 0%, #44a08d 100%);
        }

        .alert-bar.sunset {
            background: linear-gradient(135deg, #ff7e5f 0%, #feb47b 100%);
        }