styles.css

body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    color: #333;
    transition: background-color 0.3s, color 0.3s;
}

body.dark-mode {
    background-color: #333;
    color: #f4f4f4;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background-color: #333;
    color: #f4f4f4;
}

textarea {
    display: block;
    width: 100%;
    height: 200px;
    margin-bottom: 1rem;
    padding: 1rem;
    font-size: 1rem;
    resize: vertical;
}

button-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

button {
    padding: 0.5rem 1rem;
    font-size: 1rem;
    cursor: pointer;
    flex: 1;
}

pre {
    background-color: #f4f4f4;
    border: 1px solid #ccc;
    padding: 1rem;
    overflow-x: auto;
}

pre.dark-mode {
    background-color: #444;
    border-color: #666;
}