:root {
            --primary: #3498db;
            --secondary: #2c3e50;
            --accent: #e74c3c;
            --light: #ecf0f1;
            --dark: #2c3e50;
        }
        
        body {
            background-color: #2c3e50;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        .login-container {
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
        }
        
        .login-card {
            width: 100%;
            max-width: 400px;
            border-radius: 15px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
        }
        
        .role-selector {
            display: flex;
            border-radius: 10px;
            overflow: hidden;
            margin-bottom: 20px;
        }
        
        .role-btn {
            flex: 1;
            padding: 10px;
            border: none;
            background-color: #e9ecef;
            transition: all 0.3s;
        }
        
        .role-btn.active {
            background-color: var(--primary);
            color: white;
        }
        
        .admin-badge {
            background-color: var(--accent);
            color: white;
            padding: 3px 8px;
            border-radius: 15px;
            font-size: 0.7rem;
            margin-left: 5px;
        }