body {
    background-color: #f9fafb;
}

.navbar {
    background-color: white;
    border-bottom: 1px solid #e5e7eb;
}

.nav-link {
    border-radius: 10px;
}

.nav-tabs .nav-link {
    border-radius: 10px 10px 0 0;
}

.nav-link:hover {
    background-color: #f6f7fa;
}

.nav-link.active {
    background-color: #f3f4f6;
}

.card {
    border-radius: 20px;
    border: 1px solid #e5e7eb;
}

.btn {
    border-radius: 10px;
    font-weight: 500;
}

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

.btn-primary:hover,
.btn-primary:active,
.btn-primary:focus,
.btn-primary.active {
    background-color: #1f2937 !important;
    border-color: #1f2937 !important;
}