* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333;
}

header {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 1em 0;
}

header h1 {
    font-size: 2em;
}

nav ul {
    display: flex;
    justify-content: center;
    list-style: none;
    background-color: #444;
}

nav ul li {
    margin: 0 1em;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
}

section {
    padding: 2em;
    max-width: 800px;
    margin: auto;
}

h2 {
    font-size: 1.8em;
    margin-bottom: 0.5em;
}

ul {
    list-style-type: disc;
    margin: 1em 0 1em 2em;
}

form {
    display: flex;
    flex-direction: column;
    gap: 0.5em;
}

form label {
    font-weight: bold;
}

form input, form textarea, form button {
    padding: 0.5em;
    font-size: 1em;
}

form button {
    background-color: #333;
    color: #fff;
    border: none;
    cursor: pointer;
    padding: 0.7em;
}

form button:hover {
    background-color: #555;
}

footer {
    text-align: center;
    padding: 1em;
    background-color: #333;
    color: #fff;
    font-size: 0.9em;
}

footer a {
    color: #fff;
    text-decoration: none;
}