.bookmark-popup {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: white;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
            padding: 25px;
            max-width: 350px;
            z-index: 1000;
            transform: translateY(0);
            animation: slideUp 0.5s ease-out;
            border-left: 5px solid #667eea;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        @keyframes slideUp {
            from {
                transform: translateY(100px);
                opacity: 0;
            }
            to {
                transform: translateY(0);
                opacity: 1;
            }
        }
        
        .bookmark-popup.hidden {
            display: none;
        }
        
        .popup-header {
            display: flex;
            align-items: center;
            margin-bottom: 15px;
        }
        
        .bookmark-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, #667eea, #764ba2);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
        }
        
        .bookmark-icon svg {
            width: 20px;
            height: 20px;
            fill: white;
        }
        
        .popup-title {
            font-size: 1.3rem;
            font-weight: 600;
            color: #333;
        }
        
        .popup-text {
            color: #666;
            margin-bottom: 20px;
            line-height: 1.5;
        }
        
        .popup-buttons {
            display: flex;
            gap: 10px;
        }
        
        .btn {
            padding: 12px 20px;
            border-radius: 8px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            font-size: 0.95rem;
        }
        
        .btn-primary {
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            flex: 1;
        }
        
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
        }
        
        .btn-secondary {
            background: #f8f9fa;
            color: #666;
            border: 1px solid #eee;
        }
        
        .btn-secondary:hover {
            background: #e9ecef;
        }
        
        .close-btn {
            position: absolute;
            top: 15px;
            right: 15px;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: #ccc;
            width: 30px;
            height: 30px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
        }
        
        .close-btn:hover {
            background: #f8f9fa;
            color: #666;
        }