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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: #0f172a;
    color: #f1f5f9;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    width: 100%;
    max-width: 800px;
    padding: 40px;
    text-align: center;
}

h1 {
    font-size: 42px;
    margin-bottom: 10px;
    letter-spacing: 1px;
}

p {
    opacity: 0.8;
    margin-bottom: 20px;
}

.card {
    background: #1e293b;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.4);
}