body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: linear-gradient(135deg, #1e1e2f, #111);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    text-align: center;
}

.container {
    max-width: 500px;
}

h1 {
    font-size: 3rem;
    margin-bottom: 10px;
}

p {
    color: #aaa;
    margin-bottom: 30px;
}

.btn {
    display: inline-block;
    padding: 14px 28px;
    font-size: 18px;
    color: white;
    background: #ff6b00;
    text-decoration: none;
    border-radius: 8px;
    transition: 0.25s;
}

.btn:hover {
    background: #ff8c2a;
    transform: translateY(-2px);
}

footer {
    margin-top: 40px;
    font-size: 14px;
    color: #666;
}