/* Mobile Responsive Styles for X-Class */

@media (max-width: 900px) {
    .container {
        padding: 1rem;
    }

    .navbar {
        padding: 1rem;
        margin-bottom: 2rem;
    }

    .navbar-brand h2 {
        font-size: 1.2rem;
    }

    .navbar-user span {
        display: none; /* Hide welcome text on small mobile */
    }

    .classes-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .glass-card {
        padding: 1.5rem;
    }

    /* Classroom Layout */
    .classroom-layout {
        grid-template-columns: 1fr;
        height: auto;
        gap: 1rem;
    }

    .video-container {
        min-height: 250px;
        height: 300px;
    }

    .attendance-panel {
        height: 400px;
    }

    /* Messenger Mobile Fixes */
    .chat-window {
        width: 100%;
        right: -100%;
        border-left: none;
    }
    
    .chat-window.active {
        right: 0;
    }

    .chat-body {
        height: calc(100vh - 70px);
    }

    .chat-contacts {
        width: 100%;
    }

    .chat-messages-area {
        width: 100%;
    }

    .msg {
        max-width: 90%;
    }

    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .login-card {
        padding: 1.5rem;
    }
    
    .login-header h1 {
        font-size: 1.5rem;
    }
    
    .chat-avatar {
        width: 30px;
        height: 30px;
    }
    
    .chat-input-field {
        font-size: 12px;
    }
    
    .navbar-user {
        gap: 0.8rem;
    }
}