body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f4f6f8;
    color: #222;
}

.container {
    max-width: 1000px;
    margin: 30px auto;
    padding: 15px;
}

.card {
    background: #fff;
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 10px;
    border: 1px solid #ddd;
}

label {
    display: block;
    margin-top: 15px;
    font-weight: bold;
}

input,
select,
textarea {
    width: 100%;
    box-sizing: border-box;
    padding: 10px;
    margin-top: 6px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-family: Consolas, monospace;
}

textarea {
    resize: vertical;
}

.btn {
    display: inline-block;
    margin-top: 15px;
    background: #111827;
    color: #fff;
    padding: 10px 18px;
    border-radius: 6px;
    text-decoration: none;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background: #374151;
}

code,
pre {
    background: #111827;
    color: #e5e7eb;
    padding: 12px;
    border-radius: 6px;
    display: block;
    overflow-x: auto;
}

pre {
    min-height: 180px;
}