body {
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
    background-color: #0a0a0a;
    color: #ffffff;
}
header {
    background-color: #000000;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    font-size: 24px;
    font-weight: bold;
    color: #00aaff;
}
nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
}
nav ul li a {
    color: #ffffff;
    text-decoration: none;
}
nav ul li a:hover {
    color: #00aaff;
}
.hero {
    background-color: #111111;
    padding: 60px 20px;
    text-align: center;
}
.hero h1 {
    font-size: 48px;
    color: #00aaff;
}
.intro {
    padding: 40px 20px;
    max-width: 800px;
    margin: auto;
}
.intro h2 {
    color: #00aaff;
}
.illustration {
    width: 100%;
    max-width: 600px;
    display: block;
    margin: 20px auto;
}
footer {
    background-color: #000000;
    text-align: center;
    padding: 20px;
    font-size: 14px;
}