* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
            background: linear-gradient(135deg, #0c1427 0%, #1a2332 100%);
            color: #ffffff;
            min-height: 100vh;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 24px;
        }

        
        .header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 40px;
        }

        .header-left {
            display: flex;
            align-items: center;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .logo-icon {
            width: 32px;
            height: 32px;
        }

        .logo-text {
            font-size: 24px;
            font-weight: 600;
            color: #ffffff;
        }

        .settings-btn {
            background: rgba(255, 255, 255, 0.1);
            border: none;
            border-radius: 8px;
            padding: 8px;
            cursor: pointer;
            transition: background-color 0.2s ease;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .settings-btn:hover {
            background: rgba(255, 255, 255, 0.15);
        }

        .settings-btn svg {
            fill: rgba(255, 255, 255, 0.8);
        }

        
        .section-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 32px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 600;
            color: #ffffff;
        }

        .filter-tabs {
            display: flex;
            gap: 8px;
        }

        .tab-btn {
            background: rgba(255, 255, 255, 0.1);
            border: none;
            border-radius: 20px;
            padding: 8px 20px;
            font-size: 14px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.7);
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .tab-btn:hover {
            background: rgba(255, 255, 255, 0.15);
            color: rgba(255, 255, 255, 0.9);
        }

        .tab-btn.active {
            background: #ff4757;
            color: #ffffff;
        }

        
        .extensions-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 20px;
        }

        .extension-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 12px;
            padding: 20px;
            transition: all 0.2s ease;
            backdrop-filter: blur(10px);
        }

        .extension-card:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-2px);
        }

        .extension-header {
            display: flex;
            gap: 16px;
            margin-bottom: 16px;
        }

        .extension-icon {
            width: 48px;
            height: 48px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .extension-info {
            flex: 1;
        }

        .extension-name {
            font-size: 18px;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 4px;
        }

        .extension-description {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.4;
        }

        .extension-actions {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .remove-btn {
            background: #ff4757;
            border: none;
            border-radius: 6px;
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            color: #ffffff;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .remove-btn:hover {
            background: #ff3742;
            transform: translateY(-1px);
        }

        /* Toggle Switch */
        .toggle-switch {
            position: relative;
            width: 44px;
            height: 24px;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 12px;
            cursor: pointer;
            transition: background-color 0.2s ease;
        }

        .toggle-switch.active {
            background: #ff4757;
        }

        .toggle-slider {
            position: absolute;
            top: 2px;
            left: 2px;
            width: 20px;
            height: 20px;
            background: #ffffff;
            border-radius: 50%;
            transition: transform 0.2s ease;
        }

        .toggle-switch.active .toggle-slider {
            transform: translateX(20px);
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .container {
                padding: 16px;
            }

            .section-header {
                flex-direction: column;
                gap: 16px;
            }

            .extensions-grid {
                grid-template-columns: 1fr;
            }

            .extension-card {
                padding: 16px;
            }

            .logo-text {
                font-size: 20px;
            }

            .section-title {
                font-size: 24px;
            }
        }

        @media (max-width: 480px) {
            .extension-header {
                flex-direction: column;
                text-align: center;
            }

            .extension-icon {
                align-self: center;
            }

            .filter-tabs {
                flex-wrap: wrap;
                justify-content: center;
            }
        }