/* Zelfde basis als Level 1 */

body {
    background-color: #f0f0f0;
    font-family: Arial, sans-serif;
}

#introScreen {
    background-color: #fff;
    padding: 30px;
    max-width: 600px;
    margin: 40px auto;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

#gameContent {
    display: flex;
    flex-direction: column;
    align-items: center;
}

#timerDisplay {
    font-size: 1.2em;
    font-weight: bold;
    color: #00008B;
    margin-bottom: 10px;
}

/* Tabel */

table {
    border-collapse: collapse;
    margin: 20px auto;
    border: 8px solid #00008B;
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

td {
    width: 50px;
    height: 50px;
    text-align: center;
    vertical-align: middle;
    border: 1px solid #ccc;
    font-family: monospace;
    font-size: 20px;
}

.operant {
    background: white;
}

.operator {
    background: #ddd;
}

.result {
    background: #cfc;
    font-weight: bold;
}

.result-operator {
    background: #9cbf9c;
}

.final {
    background: #6fdd6f;
    font-weight: bold;
}

.empty-cell {
    background: #00008B;
}

/* Verborgen velden */

.hidden-input {
    width: 100%;
    height: 100%;
    font-size: 20px;
    border: 2px solid #999;
    background-color: #fff7cc;
    text-align: center;
}

    .hidden-input.empty-input {
        background-color: #fff7cc;
    }

    .hidden-input.number-input-filled {
        background-color: #fff0a8 !important;
    }

    .hidden-input.operator-input-filled {
        background-color: #d9ecff !important;
    }

    .hidden-input:hover {
        border-color: #00008B;
    }

.error-highlight {
    background-color: #ff3333 !important;
    border: 2px solid #a00000 !important;
}

.controls-game {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 20px;
}

.hidden {
    display: none !important;
}