body {
    font-family: sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #f0f0f0;
    margin: 0;
}

.container {
    text-align: center;
    background-color: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.numbers-container {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    justify-content: center;
}

.number {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    font-weight: bold;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    color: white;
}

#generate-btn, #ai-generate-btn {
    margin-top: 20px;
    padding: 10px 20px;
    font-size: 18px;
    border: none;
    border-radius: 5px;
    color: white;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
}

#generate-btn {
    background-color: #4CAF50;
}

#generate-btn:hover {
    background-color: #45a049;
    transform: translateY(-2px);
}

.ai-section {
    margin-top: 40px;
    border-top: 1px solid #eee;
    padding-top: 30px;
}

.ai-section h2 {
    color: #333;
}

.ai-section p {
    font-size: 14px;
    color: #666;
}

#api-key-input, #theme-input {
    display: block;
    width: 80%;
    margin: 15px auto;
    padding: 10px;
    font-size: 16px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

#ai-generate-btn {
    background-color: #007BFF;
}

#ai-generate-btn:hover {
    background-color: #0056b3;
    transform: translateY(-2px);
}