body {
    background-color: #f5f7fb;
    color: #1f2937;
}

.card {
    border-radius: 16px;
}

.navbar {
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.08);
}

.btn-primary {
    background-color: #111827;
    border-color: #111827;
}

.btn-primary:hover {
    background-color: #1f2937;
    border-color: #1f2937;
}