static/style.css

body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 30px;
    max-width: 500px;
    width: 100%;
}

h1 {
    text-align: center;
    color: #333;
}

textarea {
    width: 100%;
    height: 120px;
    padding: 10px;
    margin-top: 10px;
    font-size: 16px;
    border: 1px solid #ddd;
    border-radius: 4px;
    resize: none;
}

button {
    width: 100%;
    padding: 10px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 18px;
    cursor: pointer;
    margin-top: 15px;
}

button:hover {
    background-color: #45a049;
}

.result {
    margin-top: 20px;
    padding: 15px;
    border-radius: 4px;
    font-size: 16px;
    display: none;
}

.success {
    background-color: #e7f9e7;
    color: #2d7a2d;
    border: 1px solid #4CAF50;
    white-space: pre-wrap;
    /* To preserve newlines */
}

.error {
    background-color: #fdecea;
    color: #a94442;
    border: 1px solid #ebccd1;
}

.loader {
    border: 6px solid #f3f3f3;
    border-radius: 50%;
    border-top: 6px solid #4CAF50;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
    display: none;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}