/* Header Styles */
        .main-header {
            background-color: #ffffff;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        
        .navbar-brand {
            display: flex;
            align-items: center;
        }
        
        .logo {
            height: 40px;
            margin-right: 10px;
        }
        
        .brand-name {
            font-size: 1.5rem;
            font-weight: 700;
            color: #2c3e50;
        }
        
        .nav-link {
            color: #2c3e50 !important;
            font-weight: 500;
            margin: 0 8px;
            position: relative;
        }
        
        .nav-link:hover, .nav-link.active {
            color: #3498db !important;
        }
        
        .nav-link:hover:after, .nav-link.active:after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 100%;
            height: 3px;
            background-color: #3498db;
            border-radius: 3px;
        }
        
        .login-btns .btn {
            margin-left: 10px;
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 500;
        }
        
        .btn-school {
            background-color: #3498db;
            color: white;
        }
        
        .btn-student {
            border: 2px solid #3498db;
            color: #3498db;
            background: transparent;
        } 

        .btn-staff {
            background-color: #28a745; /* Green color */
            color: white;
            border: none;
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 500;
            margin-left: 10px;
        }
        
        .btn-staff:hover {
            background-color: #218838; /* Darker green on hover */
            color: white;
        }
        
        .navbar-toggler {
            border: none;
            padding: 0.5rem;
        }
        
        .navbar-toggler:focus {
            box-shadow: none;
        }
        
        
        /* Mobile Menu */
        @media (max-width: 991px) {
            .navbar-collapse {
                background: white;
                padding: 20px;
                margin-top: 10px;
                border-radius: 10px;
                box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            }
            
            .login-btns {
                margin-top: 15px;
                display: flex;
                flex-direction: column;
            }
            
            .login-btns .btn {
                margin: 5px 0;
                width: 100%;
            }
        }