.btn-primary {
        background-color: #3366cc;
        border-color: #3366cc;
    }
    
    .tutorial-modal-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        display: none;
        align-items: center;
        justify-content: center;
        z-index: 9999;
    }

    .tutorial-modal-content {
        background: white;
        border-radius: 8px;
        width: 70vw;
        height: 70vh;
        padding: 20px;
        box-shadow: 0 0 15px rgba(0, 0, 0, 0.3);
        display: flex;
        flex-direction: column;
        overflow: hidden;
    }

    .tutorial-modal-header {
        display: flex;
        flex-direction: column;
        margin-bottom: 15px;
        align-items: normal;
    }

    .tutorial-modal-body {
        flex: 1;
        overflow-y: auto;
        margin-top: 15px;
    }

    .close-button {
        align-self: flex-end;
        font-size: 24px;
        cursor: pointer;
    }

    .tabs {
        display: flex;
        gap: 10px;
        margin-top: 10px;
    }

    .tab {
        flex: 1;
        padding: 10px;
        background: #f1f1f1;
        border: none;
        cursor: pointer;
        font-weight: bold;
        transition: background 0.2s;
    }

    .tab:hover {
        background: #ddd;
    }

    .tab.active {
        background: #3366cc;
        color: white;
    }

    .tab-content {
        display: none;
    }

    .tab-content.active {
        display: block;
    }

    @media (max-width: 480px) {
        .modal-content {
            width: 85vw;
            width: 85vw;
        }

        .tabs {
            flex-direction: column;
        }

        .tab {
            width: 100%;
        }
    }