body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #e5e5e5;
}

.app-container {
    background: #ffffff;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    max-width: 600px;
    width: 90%;
}

h1 {
    margin-bottom: 20px;
    color: #333;
    text-align: center;
}

.input-container {
    display: flex;
    flex-direction: column;
    margin-bottom: 20px;
    gap: 10px;
}

textarea {
    flex: 1;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 8px;
    resize: none;
    font-size: 16px;
}

button {
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 8px;
    padding: 10px 20px;
    cursor: pointer;
    font-size: 16px;
}

button:hover {
    background-color: #b30000;
}

#responseContainer {
    background-color: #f8f8f8;
    border-radius: 8px;
    padding: 15px;
    min-height: 100px;
    border: 1px solid #ddd;
    overflow-y: auto;
    max-height: 400px;
    white-space: pre-wrap;
    color: #444;
}