body {
    background-color: #0F172A;
    color: #F8FAFC;
    font-family: 'Inter', sans-serif;
}
.card-dark {
    background-color: #1E293B;
    border: 1px solid #334155;
}
.sidebar-link-active {
    background-color: #334155;
    border-left: 4px solid #3B82F6;
}