* { font-family: 'Inter', sans-serif; }
        .sidebar-active { background: linear-gradient(90deg, rgba(30, 64, 175, 0.1) 0%, rgba(30, 64, 175, 0) 100%); border-left: 3px solid #1E40AF; color: #1E40AF; }
        .mobile-sidebar { transform: translateX(-100%); transition: transform 0.3s ease; }
        .mobile-sidebar.open { transform: translateX(0); }
        .mentor-card:hover { transform: translateY(-4px); box-shadow: 0 20px 40px -12px rgba(0,0,0,0.15); }