.knuth-sandbox {
    margin: 25px 0;
    padding: 20px;
    border: 2px dashed var(--warm);
    border-radius: var(--radius);
    background-color: var(--bg);
    box-shadow: 0 4px 12px var(--shadow-warm);
    color: var(--text);
}

    .knuth-sandbox h4 {
        margin-top: 0;
        color: var(--warm);
        font-size: 1.1rem;
        font-weight: bold;
    }

    .knuth-sandbox p {
        margin-bottom: 15px;
        font-size: 0.95rem;
        color: var(--text);
    }

.knuth-form-group {
    display: flex;
    gap: 12px;
    margin-bottom: 15px;
    max-width: 450px;
}

.knuth-input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid var(--muted);
    border-radius: var(--radius);
    font-size: 1rem;
    color: var(--text);
    background-color: var(--bg);
}

    .knuth-input:focus {
        outline: none;
        border-color: var(--accent);
    }

.knuth-btn {
    padding: 10px 20px;
    background-color: var(--accent);
    color: #ffffff;
    border: none;
    border-radius: var(--radius);
    font-weight: bold;
    font-size: 1rem;
    cursor: pointer;
    transition: opacity 0.2s ease, transform 0.1s ease;
}

    .knuth-btn:hover {
        opacity: 0.9;
    }

    .knuth-btn:active {
        transform: scale(0.98);
    }

.knuth-success-box, .knuth-error-box {
    display: none;
    padding: 12px 16px;
    margin-top: 15px;
    border-radius: var(--radius);
    border-left: 4px solid var(--warm);
    background-color: var(--shadow-warm);
}

.knuth-success-title {
    margin: 0;
    color: var(--warm);
    font-weight: bold;
    font-size: 0.95rem;
}

.knuth-math-output {
    margin-top: 5px;
    font-size: 1.1rem;
    color: var(--text);
    overflow-x: auto; 
}

.knuth-error-text {
    margin: 0;
    color: var(--muted);
    font-size: 0.95rem;
}

@media (max-width: 480px) {
    .knuth-form-group {
        flex-direction: column;
        max-width: 100%;
    }

    .knuth-input, .knuth-btn {
        width: 100%;
        box-sizing: border-box;
    }
}

.input-field {
    max-height: 100px;
}

mjx-container[jax="CHTML"] {
    display: inline-block !important;
    margin: 0 !important;
    padding: 0 !important;
}

.nowrap-span mjx-container[jax="CHTML"] {
    white-space: nowrap !important;
}

.steps {
    margin-top: 0px !important;
    border-top: unset !important;
    padding-top: 0px !important;
}