body { background: #f4f6f9; }
#app-wrapper { min-height: 100vh; }
.sidebar { width: 250px; min-height: 100vh; background: #1c2434; color: #dee4ee; position: sticky; top: 0; }
.sidebar-brand { color: #fff; font-size: 1.25rem; font-weight: 700; text-decoration: none; }
.sidebar .nav-link { color: #aeb7c0; border-radius: .5rem; }
.sidebar .nav-link:hover { color: #fff; background: rgba(255,255,255,.06); }
.sidebar .nav-link.active { background: #3c50e0; color: #fff; }
.sidebar .nav-link.disabled { color: #5a6679; }
.auth-bg { background: linear-gradient(135deg, #1c2434 0%, #3c50e0 100%); }
.auth-card { width: 420px; max-width: 92vw; }
.kpi-card { border: 0; border-radius: 1rem; }
.kpi-card .icon { width: 52px; height: 52px; border-radius: .8rem; display: flex; align-items: center; justify-content: center; font-size: 1.4rem; }
.table-card { border: 0; border-radius: 1rem; }