body {
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
    background: #eef1f5;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
}

.card {
    background: #fff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    max-width: 500px;
    width: 90%;
    text-align: center;
}

h1 {
    margin-bottom: 16px;
    color: #2e7d32;
}

p {
    font-size: 18px;
    color: #444;
}

button {
    background: #0078d4;
    color: #fff;
    border: none;
    padding: 12px 24px;
    font-size: 16px;
    border-radius: 6px;
    cursor: pointer;
    margin-top: 20px;
    transition: background 0.3s ease;
}

button:hover {
    background: #005a9e;
}