style.css

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

header {
    background-color: #007acc;
    color: #fff;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
}

h1 {
    margin: 0;
    font-size: 36px;
}

nav ul {
    margin: 0;
    padding: 0;
    list-style: none;
    display: flex;
}

nav li {
    margin-left: 20px;
}

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

nav a:hover {
    text-decoration: underline;
}

main {
    max-width: 800px;
    margin: 20px auto;
    padding: 0 20px;
}

section {
    margin-bottom: 40px;
}

h2 {
    font-size: 28px;
    margin-top: 0;
}

ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

li {
    margin-bottom: 10px;
}

a {
    color: #007acc;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

form label {
    display: block;
    margin-bottom: 10px;
}

form input,
form textarea {
    padding: 10px;
    border: none;
    border-radius: 5px;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
    width: 100%;
    margin-bottom: 20px;
    font-size: 16px;
}

form input[type="submit"] {
    background-color: #007acc;
    color: #fff;
    cursor: pointer;
}

form input[type="submit"]:hover {
    background-color: #005c8e;
}
    
footer {
    background-color: #f2f2f2;
    padding: 20px;
    text-align: center;
    font-size: 14px;
}