body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f0f2f5;
    color: #333;
    margin: 0;
    padding: 20px;
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: 600px;
    padding: 20px;
    margin: 0 auto 20px;
    background-color: #ffffff;
    border: 1px solid #ddd;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

h1 {
    font-size: 20px;
    text-align: left;
    color: #007bff;
    margin-top: 0;
}

textarea {
    width: calc(100% - 20px);
    padding: 10px;
    font-size: 14px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    border: 2px solid #ccc;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    transition: box-shadow 0.3s ease-in-out;
    resize: vertical;
    overflow-y: auto;
    max-height: 472px;
}

textarea:focus {
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

textarea::placeholder {
    font-size: 12px;
    color: #888;
}

button {
    padding: 5px 10px;
    font-size: 12px;
    color: white;
    background-color: #007BFF;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    margin-top: 10px;
    margin-right: 5px;
}

button:hover {
    background-color: #0056b3;
}

#output {
    width: calc(100% - 20px);
    margin-top: 20px;
    padding: 10px;
    background-color: #fff;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 14px;
    min-height: 50px;
    word-wrap: break-word;
    text-align: left;
    white-space: pre-wrap;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

div {
    text-align: center;
}

.button-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 10px;
}

.delimiter-buttons {

}

.copy-button {

}

.clear-button {
    text-align: right;
    margin-top: 10px;
}