.profile-section {
                margin-top: 2rem;
            }
            
            .profile-card {
                background: var(--bg-secondary, rgba(26, 26, 26, 0.8));
                border: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
                border-radius: 16px;
                padding: 1.5rem;
                backdrop-filter: blur(20px);
            }
            
            .profile-info {
                display: grid;
                gap: 1.5rem;
            }
            
            .info-group {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 1rem;
            }
            
            .info-item {
                display: flex;
                flex-direction: column;
                gap: 0.5rem;
            }
            
            .info-item label {
                font-size: 0.875rem;
                color: var(--text-secondary, #9ca3af);
                font-weight: 500;
            }
            
            .info-item span {
                color: var(--text-primary, #ffffff);
                font-weight: 600;
                background: rgba(255, 255, 255, 0.05);
                padding: 0.75rem;
                border-radius: 8px;
                border: 1px solid rgba(255, 255, 255, 0.1);
            }
            
            @media (max-width: 768px) {
                .info-group {
                    grid-template-columns: 1fr;
                }
            }
            
            
            
            @keyframes pulse {
                0%, 100% { transform: scale(1); opacity: 1; }
                50% { transform: scale(1.1); opacity: 0.8; }
            }

            .loading-dots {
                animation: loadingDots 1.5s infinite;
            }

            @keyframes loadingDots {
                0%, 20% { opacity: 0.2; }
                50% { opacity: 1; }
                80%, 100% { opacity: 0.2; }
            }

            .activity-loading {
                display: flex;
                align-items: center;
                justify-content: center;
                gap: 1rem;
                padding: 2rem;
                color: var(--text-secondary, #9ca3af);
            }

            .loading-spinner {
                width: 20px;
                height: 20px;
                border: 2px solid var(--border-color, rgba(255, 255, 255, 0.1));
                border-top: 2px solid var(--primary-color, #a238ff);
                border-radius: 50%;
                animation: spin 1s linear infinite;
            }

            @keyframes spin {
                0% { transform: rotate(0deg); }
                100% { transform: rotate(360deg); }
            }

            .activity-empty {
                text-align: center;
                padding: 3rem 1rem;
                color: var(--text-secondary, #9ca3af);
            }

            .empty-icon {
                font-size: 3rem;
                margin-bottom: 1rem;
                opacity: 0.5;
            }

            .empty-text {
                font-size: 1.125rem;
                font-weight: 500;
            }

            /* Modal Styles */
            .modal-overlay {
                position: fixed;
                top: 0;
                left: 0;
                width: 100%;
                height: 100vh;
                background: rgba(0, 0, 0, 0.8);
                backdrop-filter: blur(5px);
                display: flex;
                align-items: center;
                justify-content: center;
                z-index: 5000;
                opacity: 0;
                visibility: hidden;
                transition: all 0.3s ease;
            }

            .modal-overlay.show {
                opacity: 1;
                visibility: visible;
            }

            .modal-content {
                background: var(--bg-secondary, rgba(26, 26, 26, 0.95));
                border: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
                border-radius: 16px;
                max-width: 90vw;
                max-height: 90vh;
                overflow: hidden;
                transform: scale(0.9);
                transition: transform 0.3s ease;
            }

            .modal-overlay.show .modal-content {
                transform: scale(1);
            }

            .activity-modal {
                width: 800px;
            }

            .modal-header {
                padding: 1.5rem 2rem;
                border-bottom: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
                display: flex;
                justify-content: space-between;
                align-items: center;
            }

            .modal-header h2 {
                margin: 0;
                color: var(--text-primary, #ffffff);
                font-size: 1.5rem;
                font-weight: 600;
            }

            .modal-close {
                background: none;
                border: none;
                color: var(--text-secondary, #9ca3af);
                cursor: pointer;
                font-size: 1.5rem;
                padding: 0.5rem;
                border-radius: 8px;
                transition: all 0.3s ease;
            }

            .modal-close:hover {
                color: var(--text-primary, #ffffff);
                background: rgba(255, 255, 255, 0.1);
            }

            .modal-body {
                max-height: 60vh;
                overflow-y: auto;
            }

            /* Activity Filters */
            .activity-filters {
                padding: 1.5rem 2rem;
                border-bottom: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
                display: flex;
                gap: 1rem;
                align-items: end;
                flex-wrap: wrap;
            }

            .filter-group {
                display: flex;
                flex-direction: column;
                gap: 0.5rem;
                min-width: 120px;
            }

            .filter-group label {
                font-size: 0.875rem;
                color: var(--text-secondary, #9ca3af);
                font-weight: 500;
            }

            .filter-input,
            .filter-select {
                padding: 0.75rem;
                border: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
                border-radius: 8px;
                background: rgba(255, 255, 255, 0.05);
                color: var(--text-primary, #ffffff);
                font-size: 0.875rem;
            }

            .filter-input:focus,
            .filter-select:focus {
                outline: none;
                border-color: var(--primary-color, #a238ff);
                box-shadow: 0 0 0 3px rgba(162, 56, 255, 0.1);
            }

            .filter-btn {
                padding: 0.75rem 1.5rem;
                border: none;
                border-radius: 8px;
                background: var(--primary-color, #a238ff);
                color: white;
                font-weight: 500;
                cursor: pointer;
                transition: all 0.3s ease;
                white-space: nowrap;
            }

            .filter-btn:hover {
                background: var(--primary-hover, #9333ea);
                transform: translateY(-1px);
            }

            .filter-btn.secondary {
                background: rgba(255, 255, 255, 0.1);
                color: var(--text-primary, #ffffff);
            }

            .filter-btn.secondary:hover {
                background: rgba(255, 255, 255, 0.2);
            }

            /* Activity Stats */
            .activity-stats {
                padding: 1rem 2rem;
                border-bottom: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
                display: flex;
                gap: 2rem;
            }

            .stat-item {
                text-align: center;
            }

            .stat-number {
                display: block;
                font-size: 1.5rem;
                font-weight: 700;
                color: var(--primary-color, #a238ff);
            }

            .stat-text {
                font-size: 0.875rem;
                color: var(--text-secondary, #9ca3af);
            }

            /* Activity Day Groups */
            .activity-day-group {
                border-bottom: 1px solid var(--border-color, rgba(255, 255, 255, 0.05));
            }

            .activity-day-header {
                padding: 1rem 2rem;
                background: rgba(255, 255, 255, 0.02);
                display: flex;
                justify-content: space-between;
                align-items: center;
                border-bottom: 1px solid var(--border-color, rgba(255, 255, 255, 0.05));
            }

            .day-date {
                font-weight: 600;
                color: var(--text-primary, #ffffff);
                text-transform: capitalize;
            }

            .day-count {
                font-size: 0.875rem;
                color: var(--text-secondary, #9ca3af);
            }

            .activity-day-list {
                padding: 0 2rem;
            }

            .activity-item.full {
                padding: 1rem 0;
                border-bottom: 1px solid var(--border-color, rgba(255, 255, 255, 0.05));
            }

            .activity-item.full:last-child {
                border-bottom: none;
            }

            .notification-panel {
                position: fixed;
                top: 80px;
                right: 20px;
                width: 350px;
                max-height: 500px;
                background: var(--bg-secondary, rgba(26, 26, 26, 0.95));
                border: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
                border-radius: 16px;
                backdrop-filter: blur(20px);
                transform: translateX(100%);
                transition: transform 0.3s ease;
                z-index: 4000;
                overflow: hidden;
            }
            
            .notification-panel.show {
                transform: translateX(0);
            }
            
            .notification-header {
                padding: 1rem 1.5rem;
                border-bottom: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
                display: flex;
                justify-content: space-between;
                align-items: center;
            }
            
            .notification-header h3 {
                margin: 0;
                color: var(--text-primary, #ffffff);
                font-size: 1.125rem;
                font-weight: 600;
            }
            
            .close-notifications {
                background: none;
                border: none;
                color: var(--text-secondary, #9ca3af);
                cursor: pointer;
                font-size: 1.25rem;
                padding: 0.25rem;
                border-radius: 4px;
                transition: color 0.3s ease;
            }
            
            .close-notifications:hover {
                color: var(--text-primary, #ffffff);
            }
            
            .notification-list {
                max-height: 400px;
                overflow-y: auto;
            }
            
            .notification-item {
                padding: 1rem 1.5rem;
                border-bottom: 1px solid var(--border-color, rgba(255, 255, 255, 0.05));
                display: flex;
                gap: 1rem;
                cursor: pointer;
                transition: background-color 0.3s ease;
            }
            
            .notification-item:hover {
                background: rgba(255, 255, 255, 0.05);
            }
            
            .notification-item.unread {
                background: rgba(162, 56, 255, 0.1);
                border-left: 3px solid var(--primary-color, #a238ff);
            }
            
            .notification-icon {
                font-size: 1.25rem;
                margin-top: 0.25rem;
            }
            
            .notification-content {
                flex: 1;
            }
            
            .notification-title {
                font-weight: 600;
                color: var(--text-primary, #ffffff);
                margin-bottom: 0.25rem;
            }
            
            .notification-text {
                font-size: 0.875rem;
                color: var(--text-secondary, #9ca3af);
                line-height: 1.4;
                margin-bottom: 0.5rem;
            }
            
            .notification-time {
                font-size: 0.75rem;
                color: var(--text-muted, #6b7280);
            }

            /* Activity Item Status Colors */
            .activity-icon.incoming {
                background: rgba(34, 197, 94, 0.2);
                color: #22c55e;
            }

            .activity-icon.outgoing {
                background: rgba(59, 130, 246, 0.2);
                color: #3b82f6;
            }

            .activity-icon {
                width: 40px;
                height: 40px;
                border-radius: 50%;
                display: flex;
                align-items: center;
                justify-content: center;
                font-size: 1.25rem;
                flex-shrink: 0;
            }

            /* Responsive Design */
            @media (max-width: 768px) {
                .activity-modal {
                    width: 95vw;
                    margin: 0 2.5vw;
                }

                .activity-filters {
                    flex-direction: column;
                    gap: 1rem;
                }

                .filter-group {
                    min-width: auto;
                }

                .activity-stats {
                    flex-direction: column;
                    gap: 1rem;
                    text-align: center;
                }

                .notification-panel {
                    width: calc(100vw - 40px);
                    right: 20px;
                    left: 20px;
                }

                .activity-day-header {
                    flex-direction: column;
                    gap: 0.5rem;
                    text-align: center;
                }
            }

            /* Trend Colors */
            .stat-trend.positive {
                color: #22c55e;
            }

            .stat-trend.negative {
                color: #ef4444;
            }

            .stat-trend.neutral {
                color: var(--text-secondary, #9ca3af);
            }

            /* Custom Scrollbar */
            .modal-body::-webkit-scrollbar,
            .notification-list::-webkit-scrollbar {
                width: 6px;
            }

            .modal-body::-webkit-scrollbar-track,
            .notification-list::-webkit-scrollbar-track {
                background: rgba(255, 255, 255, 0.05);
                border-radius: 3px;
            }

            .modal-body::-webkit-scrollbar-thumb,
            .notification-list::-webkit-scrollbar-thumb {
                background: rgba(255, 255, 255, 0.2);
                border-radius: 3px;
            }

            .modal-body::-webkit-scrollbar-thumb:hover,
            .notification-list::-webkit-scrollbar-thumb:hover {
                background: rgba(255, 255, 255, 0.3);
            }
        `;