* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
            min-height: 100vh;
            color: #fff;
        }
        
        .header {
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(10px);
            padding: 15px 0;
            box-shadow: 0 2px 20px rgba(0,0,0,0.5);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        
        .header-content {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            font-size: 24px;
            font-weight: bold;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        
        .user-info {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        
        .logout-btn {
            background: linear-gradient(135deg, #e74c3c, #c0392b);
            color: white;
            padding: 8px 20px;
            border-radius: 20px;
            text-decoration: none;
            transition: all 0.3s;
        }
        
        .logout-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(231, 76, 60, 0.4);
        }
        
        .navigation {
            background: rgba(0, 0, 0, 0.5);
            backdrop-filter: blur(10px);
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        .nav-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            gap: 10px;
        }
        
        .nav-item {
            padding: 10px 25px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 30px;
            text-decoration: none;
            color: white;
            transition: all 0.3s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .nav-item:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: translateY(-2px);
        }
        
        .nav-item.active {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
        }
        
        .content {
            max-width: 1400px;
            margin: 30px auto;
            padding: 0 20px;
        }
        
        .dashboard-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 25px;
            margin-top: 30px;
        }
        
        .dashboard-card {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            border-radius: 20px;
            padding: 30px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: all 0.3s;
        }
        
        .dashboard-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
            border-color: rgba(102, 126, 234, 0.5);
        }
        
        .card-icon {
            font-size: 48px;
            margin-bottom: 15px;
        }
        
        .card-title {
            font-size: 20px;
            font-weight: bold;
            margin-bottom: 10px;
            color: #fff;
        }
        
        .card-value {
            font-size: 36px;
            font-weight: bold;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            margin: 15px 0;
        }
        
        .card-description {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
        }
        
        .welcome-section {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            border-radius: 20px;
            padding: 40px;
            text-align: center;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        
        h1 {
            font-size: 36px;
            margin-bottom: 10px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        
        .subtitle {
            color: rgba(255, 255, 255, 0.7);
            font-size: 18px;
        }