body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #121212;
    color: #ffffff;
    text-align: center;
}
header {
    background-color: #1f1f1f;
    padding: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
}
nav ul li {
    margin: 0 15px;
}
nav ul li a {
    color: #00ffcc;
    text-decoration: none;
}
#hero {
    padding: 50px;
    background: linear-gradient(to right, #00ffcc, #0066ff);
    color: black;
}
button {
    padding: 10px 20px;
    font-size: 16px;
    background-color: #00ffcc;
    border: none;
    cursor: pointer;
}
button:hover {
    background-color: #009977;
}
section {
    padding: 40px;
}
footer {
    background-color: #1f1f1f;
    padding: 10px;
    margin-top: 20px;
}
input, textarea {
    width: 80%;
    margin: 10px 0;
    padding: 10px;
    border: none;
    border-radius: 5px;
}