body {
    font-family: 'Arial', sans-serif;
    background-color: #f4f7f6;
    color: #333;
    margin: 0;
    padding: 0;
}

header {
    background-color: #2c3e50;
    color: #ecf0f1;
    padding: 15px 0;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

header nav a {
    color: #ecf0f1;
    text-decoration: none;
    font-weight: bold;
    padding: 0 15px;
}

header nav a:hover {
    color: #3498db;
}

.container {
    max-width: 800px;
    margin: 20px auto;
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

fieldset {
    border: 1px solid #ddd;
    padding: 20px;
    border-radius: 5px;
    margin-bottom: 20px;
}

legend {
    font-size: 1.5em;
    font-weight: bold;
    color: #2c3e50;
    padding: 0 10px;
}

label {
    display: block;
    margin-bottom: 10px;
    font-weight: bold;
}

input[type="text"],
textarea {
    width: calc(100% - 22px);
    padding: 10px;
    margin-top: 5px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}

input[type="submit"] {
    background-color: #3498db;
    color: white;
    padding: 12px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1em;
    transition: background-color 0.3s ease;
}

input[type="submit"]:hover {
    background-color: #2980b9;
}

p {
    background-color: #ecf0f1;
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 10px;
    border-left: 5px solid #3498db;
}