.smg-game-container {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    font-family: Arial, sans-serif;
    padding: 20px;
    background-color: #f5f5f5;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

#smg-game-board {
    display: grid;
    grid-gap: 5px;
    margin: 20px auto;
    justify-content: center;
    padding: 10px;
    background-color: white;
    border-radius: 8px;
}

.smg-tile {
    width: 50px;
    height: 50px;
    background-color: white;
    border-radius: 3px;
    cursor: pointer;
    box-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
    transition: all 0.2s;
    border: 1px solid #e0e0e0;
}

.smg-tile:hover {
    box-shadow: 2px 2px 6px rgba(0, 0, 0, 0.15);
}

.smg-tile.active {
    background-color: #ff4444;
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.2);
}

.smg-level-selector {
    margin: 15px 0;
    padding: 10px;
    background-color: white;
    border-radius: 8px;
}

#smg-start {
    margin-top: 10px;
    padding: 8px 20px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
}

#smg-start:hover {
    background-color: #3e8e41;
}

.smg-game-info {
    margin-top: 15px;
    font-size: 1.1em;
    background-color: white;
    padding: 10px;
    border-radius: 8px;
}

#smg-message {
    font-weight: bold;
    min-height: 24px;
    color: #d9534f;
    margin-top: 10px;
}

#smg-current-level, #smg-level-attempts, #smg-sequence-length, #smg-score {
    font-weight: bold;
    color: #337ab7;
}