body {
    background-color: #f4f6f9;
}

.sidebar {
    background: linear-gradient(45deg, #1e3c72, #2a5298);
    min-height: 100vh;
    color: white;
}

.sidebar a {
    color: white;
    text-decoration: none;
    display: block;
    padding: 12px;
}

.sidebar a:hover {
    background-color: rgba(255,255,255,0.2);
}

.dashboard-card {
    border-radius: 15px;
    color: white;
    padding: 20px;
}

.bg-primary-gradient {
    background: linear-gradient(45deg, #36d1dc, #5b86e5);
}

.bg-success-gradient {
    background: linear-gradient(45deg, #11998e, #38ef7d);
}

.bg-danger-gradient {
    background: linear-gradient(45deg, #ff416c, #ff4b2b);
}