:root {
    --brand-dark: #0f2f57;
    --brand-mid: #1d4c8f;
    --bg-light: #f3f6fb;
}

body {
    background: var(--bg-light);
}

.login-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 16px;
    background: linear-gradient(135deg, var(--brand-dark), #234f88);
}

.login-card {
    width: 100%;
    max-width: 440px;
    border-radius: 16px;
}

.text-primary-dark {
    color: var(--brand-dark);
}

.app-shell {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 250px;
    background: var(--brand-dark);
    color: #fff;
    padding: 18px 12px;
    transition: transform 0.2s ease;
}

.sidebar-brand {
    font-size: 1.2rem;
    font-weight: 700;
    padding: 10px 14px;
}

.sidebar .nav-link {
    color: #d9e6f7;
    border-radius: 8px;
    margin-bottom: 6px;
}

.sidebar .nav-link.active,
.sidebar .nav-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.12);
}

.main-content {
    flex: 1;
}

.topbar {
    background: var(--brand-mid);
}

.dashboard-card {
    border: 0;
    border-radius: 14px;
}

@media (max-width: 992px) {
    .sidebar {
        position: fixed;
        inset: 0 auto 0 0;
        z-index: 1050;
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }
}