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

body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #0a0a0a;
    color: #e0e0e0;
    font-family: system-ui, -apple-system, sans-serif;
    padding: 20px;
}

.container {
    max-width: 600px;
    width: 100%;
    text-align: center;
}

.center {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

h1 {
    font-size: 2rem;
    font-weight: 600;
    color: #fff;
}

p {
    font-size: 1rem;
    color: #999;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    background: #fff;
    color: #0a0a0a;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 500;
    transition: opacity 0.2s;
}

.btn:hover {
    opacity: 0.9;
}