body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    padding: 20px;
    max-width: 800px;
    margin: 0 auto;
}

h1 {
    color: #333;
}

#game-container {
    margin-top: 20px;
    border: 1px solid #ccc;
    padding: 20px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-bottom: 20px;
}

.word {
    background-color: #fff;
    border: 2px solid #ccc;
    padding: 10px;
    cursor: pointer;
    user-select: none;
    text-align: center;
}

.word.selected {
    background-color: #e0e0e0;
}

#solved-groups {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

.solved-group {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 5px;
}

.solved-word {
    text-align: center;
    padding: 10px;
    border-radius: 3px;
    color: white;
}

button {
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
}

.game-intro {
    background-color: #ecf0f1;
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 20px;
}