body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #f5f7fb;
}

.navbar-brand {
    letter-spacing: 0.03em;
}

.card {
    border-radius: 0.75rem;
}

.btn-primary {
    background: linear-gradient(135deg, #0062e6 0%, #33aeff 100%);
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #004bb5 0%, #2196f3 100%);
}