body {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

main {
    min-height: 80vh;
}

.card-custom {
    border: none;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    border-radius: 8px;
}