body {
    font-family: Arial, sans-serif;
    background-color: #f0f2f5;
    margin: 0;
    padding: 40px;
}

.container {
    max-width: 700px;
    margin: auto;
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

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

form {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

input[type="text"], select {
    flex: 1;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 6px;
}

button {
    padding: 10px 20px;
    background-color: #0077cc;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}

button:hover {
    background-color: #005fa3;
}

pre {
    background-color: #f6f8fa;
    padding: 10px;
    border-radius: 8px;
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

th, td {
    padding: 10px;
    border: 1px solid #ddd;
    text-align: left;
    font-size: 14px;
}

th {
    background-color: #f2f2f2;
    font-weight: bold;
}

.button-group {
    margin-top: 10px;
    display: flex;
    gap: 10px;
    justify-content: center;
}

.btn {
    display: inline-block;
    padding: 10px 16px;
    background-color: #28a745;
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.btn:hover {
    background-color: #218838;
}

textarea {
    width: 95%;
    min-height: 100px;
    padding: 10px;
    margin-top: 15px;
    border-radius: 6px;
    resize: vertical;
    font-family: monospace;
    font-size: 14px;
    border: 1px solid #ccc;
    box-sizing: border-box;
    background-color: #f8f8f8;
}


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

.btn, .copy-btn {
    display: inline-block;
    padding: 10px 16px;
    background-color: #28a745;
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-weight: bold;
    transition: background-color 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn:hover, .copy-btn:hover {
    background-color: #218838;
}

textarea {
    width: 100%;
    padding: 10px;
    margin-top: 15px;
    border-radius: 6px;
    resize: none;
    font-family: monospace;
}

.copy-section {
    margin-top: 30px;
}