body {
    background: #f4f6f9;
    font-family: 'Segoe UI', Arial, sans-serif;
}
.login-bg {
    background: linear-gradient(135deg, #1f2937, #374151);
}
.login-card {
    width: 380px;
    border: none;
    border-radius: 14px;
}
.sidebar {
    width: 230px;
    min-height: 100vh;
    background: #1f2937;
}
.sidebar .nav-link {
    border-radius: 8px;
    margin-bottom: 4px;
}
.sidebar .nav-link.active {
    background: #2563eb;
    color: #fff !important;
}
.sidebar .nav-link:not(.active):hover {
    background: rgba(255,255,255,0.08);
    color: #fff !important;
}
.content {
    width: calc(100% - 230px);
}
.card-stat {
    border: none;
    border-radius: 12px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}
.badge { font-weight: 600; }
table.table thead { background: #f1f3f5; }
.menu-card {
    cursor: pointer;
    border-radius: 10px;
    transition: 0.15s;
}
.menu-card:hover {
    box-shadow: 0 4px 10px rgba(0,0,0,0.12);
    transform: translateY(-2px);
}
@media print {
    .sidebar, .no-print { display: none !important; }
    .content { width: 100% !important; margin: 0 !important; }
}