/* Math Grid Quiz (Gleichungen) Styles */

#MathQuiz-container {
    max-width: 550px;
    margin: 0 auto;
    padding: 10px;
}

#math-counter {
    text-align: center;
    font-size: 0.95em;
    color: #666;
    margin-bottom: 15px;
}

#math-grid {
    display: grid;
    gap: 4px;
    justify-content: center;
    align-items: center;
    justify-items: center;
    padding: 20px;
    background: #f5f5f5;
    border-radius: 10px;
    margin-bottom: 15px;
}

.math-cell {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 48px;
    min-height: 48px;
    font-size: 1.2em;
}

.math-number {
    font-weight: bold;
    color: #333;
    font-size: 1.3em;
}

.math-op {
    color: #555;
    font-size: 1.2em;
    font-weight: bold;
}

.math-empty {
    /* intentionally blank */
}

.math-blank-cell {
    /* container for input */
}

.math-input {
    width: 52px;
    height: 44px;
    text-align: center;
    font-size: 1.2em;
    font-weight: bold;
    border: 2px solid #007bff;
    border-radius: 6px;
    background: #fff;
    outline: none;
    transition: border-color 0.15s;
    /* Hide spinner arrows */
    -moz-appearance: textfield;
}

.math-input::-webkit-outer-spin-button,
.math-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.math-input:focus {
    border-color: #0056b3;
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.15);
}

#math-confirm-btn {
    display: block;
    margin: 15px auto 0;
    padding: 10px 40px;
    font-size: 1em;
    border: none;
    border-radius: 6px;
    background: #007bff;
    color: #fff;
    cursor: pointer;
    transition: background 0.15s;
}

#math-confirm-btn:hover:not(:disabled) {
    background: #0056b3;
}

#math-confirm-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
}