.container {
            max-width: 1000px;
            margin: 30px auto;
            padding: 0 20px;
        }
        
        .page-header {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            padding: 35px;
            border-radius: var(--radius-lg);
            box-shadow: var(--glass-shadow);
            margin-bottom: 30px;
            text-align: center;
            border: 1px solid var(--glass-border);
        }
        
        .page-icon {
            width: 70px;
            height: 70px;
            border-radius: 20px;
            background: var(--primary-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            color: white;
            font-size: 32px;
        }
        
        .page-title {
            font-size: 28px;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 10px;
        }
        
        .page-subtitle {
            color: var(--text-muted);
            font-size: 15px;
        }
        
        .card {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            border-radius: var(--radius-lg);
            padding: 30px;
            margin-bottom: 25px;
            border: 1px solid var(--glass-border);
            box-shadow: var(--glass-shadow);
            transition: all 0.3s;
        }
        
        .card:hover {
            box-shadow: 0 12px 40px rgba(31, 38, 135, 0.2);
        }
        
        .card-header {
            display: flex;
            align-items: center;
            gap: 18px;
            margin-bottom: 25px;
            padding-bottom: 20px;
            border-bottom: 2px solid rgba(102, 126, 234, 0.1);
        }
        
        .card-icon {
            width: 55px;
            height: 55px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
        }
        
        .card-icon.blue { background: rgba(102, 126, 234, 0.15); color: var(--primary); }
        .card-icon.green { background: rgba(56, 161, 105, 0.15); color: var(--success); }
        .card-icon.orange { background: rgba(251, 140, 0, 0.15); color: var(--warning); }
        .card-icon.red { background: rgba(229, 57, 53, 0.15); color: var(--error); }
        
        .card-title {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-primary);
        }
        
        .card-desc {
            color: var(--text-muted);
            font-size: 14px;
            margin-top: 5px;
        }
        
        .setting-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 0;
            border-bottom: 1px solid var(--glass-border);
        }
        
        .setting-row:last-child { border-bottom: none; }
        
        .setting-info { flex: 1; }
        
        .setting-label {
            font-weight: 500;
            margin-bottom: 4px;
            color: var(--text-primary);
        }
        
        .setting-hint {
            color: var(--text-muted);
            font-size: 13px;
        }
        
        .toggle {
            position: relative;
            width: 56px;
            height: 30px;
        }
        
        .toggle input {
            opacity: 0;
            width: 0;
            height: 0;
        }
        
        .toggle-slider {
            position: absolute;
            cursor: pointer;
            top: 0; left: 0; right: 0; bottom: 0;
            background-color: #ccc;
            transition: 0.3s;
            border-radius: 30px;
        }
        
        .toggle-slider:before {
            position: absolute;
            content: "";
            height: 24px;
            width: 24px;
            left: 3px;
            bottom: 3px;
            background-color: white;
            transition: 0.3s;
            border-radius: 50%;
            box-shadow: 0 2px 5px rgba(0,0,0,0.2);
        }
        
        .toggle input:checked + .toggle-slider {
            background: var(--primary-gradient);
        }
        
        .toggle input:checked + .toggle-slider:before {
            transform: translateX(26px);
        }
        
        .btn-outline {
            background: transparent;
            border: 2px solid var(--glass-border);
            color: var(--text-primary);
            padding: 10px 20px;
            border-radius: 10px;
            cursor: pointer;
            font-size: 14px;
            transition: all 0.3s;
        }
        
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        
        .btn-danger {
            background: linear-gradient(135deg, var(--error), #ef5350);
            color: white;
            padding: 12px 24px;
            border: none;
            border-radius: 12px;
            cursor: pointer;
            font-size: 14px;
            transition: all 0.3s;
        }
        
        .btn-danger:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(229, 57, 53, 0.4);
        }
        
        .nav-tabs {
            display: flex;
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--glass-shadow);
            margin-bottom: 30px;
            border: 1px solid var(--glass-border);
        }
        
        .nav-tab {
            flex: 1;
            padding: 16px;
            text-align: center;
            cursor: pointer;
            transition: all 0.3s;
            border-bottom: 4px solid transparent;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            font-weight: 500;
            color: var(--text-muted);
        }
        
        .nav-tab:hover {
            background: rgba(102, 126, 234, 0.1);
            color: var(--primary);
        }
        
        .nav-tab.active {
            border-bottom-color: var(--primary);
            color: var(--primary);
            background: rgba(102, 126, 234, 0.15);
        }
        
        .data-list {
            background: rgba(102, 126, 234, 0.05);
            border-radius: 12px;
            padding: 20px;
            margin: 15px 0;
        }
        
        .data-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid var(--glass-border);
        }
        
        .data-item:last-child { border-bottom: none; }
        
        .data-label { color: var(--text-muted); }
        .data-value { font-weight: 500; color: var(--text-primary); }
        
        .tab-content { display: none; }
        .tab-content.active { display: block; }