body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: #f1f5f9;
    color: #0f172a;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0;
    padding: 1rem;
}

.card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    padding: 3rem 4rem;
    border-radius: 16px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05);
    text-align: center;
    max-width: 100%;
    width: 400px;
}

.title {
    font-size: 2.5rem;
    font-weight: 800;
    color: #4f46e5;
    margin: 0 0 0.5rem 0;
}

.subtitle {
    font-size: 1rem;
    color: #64748b;
    margin: 0;
}

@media (max-width: 480px) {
    .card {
        padding: 2rem 1.5rem;
    }

    .title {
        font-size: 2rem;
    }
}