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

body {
    font-family: Arial, sans-serif;
    background-color: #111;
    color: #fff;
    line-height: 1.6;
}

header {
    background: #1e1e1e;
    padding: 2rem;
    text-align: center;
}

main {
    max-width: 900px;
    margin: 2rem auto;
    padding: 1rem;
}

section {
    margin-bottom: 2rem;
}

h1,
h2 {
    color: #00ff99;
}

a {
    color: #00ff99;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

footer {
    text-align: center;
    padding: 1rem;
    background: #1e1e1e;
    margin-top: 3rem;
}