#sudoku-wrapper {
    max-width: 600px;
    margin: 40px auto;
    text-align: center;
    font-family: Arial, sans-serif;
    background: #000;
    padding: 30px;
    border-radius: 12px;
    color: #FFD700;
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.2);
}

/* Bigger, bolder heading */
.gold-title {
    font-size: 2.2rem;
    font-weight: 700;
    color: #FFD700;
    text-shadow: 0 0 12px rgba(255, 215, 0, 0.8);
    margin-bottom: 20px;
}

/* Control section layout */
.controls {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-bottom: 20px;
}

label {
    font-size: 1.1rem;
    margin-right: 6px;
}

/* Larger dropdowns */
select {
    padding: 8px 10px;
    font-size: 1rem;
    background: #111;
    color: #FFD700;
    border: 1px solid #FFD700;
    border-radius: 6px;
    min-width: 90px;
}

/* Bigger, glowing buttons */
.gold-btn {
    background: #111;
    color: #FFD700;
    border: 1px solid #FFD700;
    padding: 10px 16px;
    font-size: 1rem;
    border-radius: 6px;
    cursor: pointer;
    transition: 0.25s;
}

.gold-btn:hover {
    box-shadow: 0 0 12px #FFD700;
    transform: scale(1.05);
}

/* Timer and score bar */
.status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 15px 0;
    font-size: 1.2rem;
}

/* Sudoku grid */
#sudoku-grid {
    display: grid;
    gap: 3px;
    margin-top: 15px;
}

#sudoku-grid input {
    width: 100%;
    aspect-ratio: 1 / 1;
    text-align: center;
    font-size: 1.3rem;
    background: #111;
    color: #FFD700;
    border: 1px solid #333;
}

#sudoku-grid input:focus {
    outline: none;
    border-color: #FFD700;
    box-shadow: 0 0 8px #FFD700;
}

/* Mobile adjustments */
@media (max-width: 600px) {
    .controls {
        flex-direction: column;
        gap: 10px;
    }

    .gold-title {
        font-size: 1.8rem;
    }

    select, .gold-btn {
        width: 100%;
    }

    .status-bar {
        flex-direction: column;
        gap: 6px;
    }
}