body {
    background: linear-gradient(180deg, #eef4ff 0%, #f9fbff 100%);
    color: #202a44;
}
.app-shell {
    min-height: 100vh;
}
.app-layout {
    display: flex;
    gap: 1rem;
}
.sidebar {
    width: 260px;
    background: linear-gradient(180deg, #0d6efd 0%, #0a58ca 100%);
    min-height: calc(100vh - 56px);
    color: #fff;
}
.sidebar .nav-link {
    color: rgba(255,255,255,0.88);
    padding: 0.9rem 1rem;
    border-radius: 0.75rem;
    margin-bottom: 0.25rem;
}
.sidebar .nav-link.active,
.sidebar .nav-link:hover {
    color: #fff;
    background: rgba(255,255,255,0.14);
}
.sidebar-brand {
    border-bottom: 1px solid rgba(255,255,255,0.15);
}
.sidebar-logo {
    font-size: 2.5rem;
}
.sidebar-user {
    border-top: 1px solid rgba(255,255,255,0.15);
}
.sidebar-footer {
    font-size: 0.9rem;
}
.navbar-brand {
    font-weight: 800;
}
.card {
    border: none;
    border-radius: 1rem;
    box-shadow: 0 18px 50px rgba(16, 54, 114, 0.08);
}
.card .card-title {
    color: #0d6efd;
}
.btn-primary {
    background: linear-gradient(135deg, #4f46e5 0%, #3b82f6 100%);
    border: none;
}
.btn-primary:hover {
    background: linear-gradient(135deg, #4338ca 0%, #2563eb 100%);
}
.nav-icon {
    margin-right: 0.65rem;
}
.table td, .table th {
    vertical-align: middle;
}
.offcanvas .nav-link {
    color: #212529;
}
.offcanvas .nav-link.active {
    background: rgba(13, 110, 253, 0.08);
    color: #0d6efd;
}
@media (max-width: 991px) {
    .app-layout {
        display: block;
    }
    .sidebar {
        display: none;
    }
    .content-wrapper {
        padding: 0 0.5rem;
    }
}
@media (max-width: 767px) {
    .navbar-brand {
        font-size: 1.1rem;
    }
}