.words-content {
    padding: 40px 20px;
    margin-left: auto;
    margin-right: auto;
    max-width: 1200px;
}

.words-content h2 {
    text-align: center;
    color: #333;
    margin-bottom: 20px;
    font-size: 2.5rem;
    font-weight: bold;
}

.words-content p {
    text-align: center;
    color: #666;
    margin-bottom: 40px;
    font-size: 1.2rem;
}

.word-item {
    border: 1px solid #dee2e6;
    border-radius: 10px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.word-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    border-color: #007bff;
}

.word-item .card-title {
    color: #333;
    font-weight: bold;
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.word-item .card-text {
    color: #666;
    font-size: 1.1rem;
    margin-bottom: 15px;
}

.word-item .card-body {
    padding: 1.5rem;
}

.word-item .flex-grow-1 {
    min-width: 0;
}

.word-item .btn {
    border-radius: 20px;
    padding: 8px 16px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.word-item .btn:hover {
    transform: scale(1.05);
}

.word-item .btn-outline-primary {
    border-color: #007bff;
    color: #007bff;
}

.word-item .btn-outline-primary:hover {
    background-color: #007bff;
    border-color: #007bff;
    color: white;
}

.word-item .btn-outline-primary i {
    font-size: 1rem;
}

/* メッセージ表示エリア */
#messageArea {
    margin-bottom: 20px;
    border-radius: 10px;
    padding: 15px 20px;
    font-weight: 500;
}

/* レスポンシブデザイン */
@media (max-width: 768px) {
    .words-content {
        padding: 20px 15px;
    }
    
    .words-content h2 {
        font-size: 2rem;
        margin-bottom: 15px;
    }
    
    .words-content p {
        font-size: 1rem;
        margin-bottom: 30px;
    }
    
    .word-item .card-title {
        font-size: 1.2rem;
    }
    
    .word-item .card-text {
        font-size: 1rem;
    }
}