:root {
    --sa-primary: #2563EB;
    --sa-secondary: #1E40AF;
    --sa-accent: #F59E0B;
    --sa-success: #10B981;
    --sa-danger: #EF4444;
}

body {
    background-color: #F3F4F6;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

.btn-primary {
    background-color: var(--sa-primary);
    border-color: var(--sa-primary);
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--sa-secondary);
    border-color: var(--sa-secondary);
}

.btn-accent {
    background-color: var(--sa-accent);
    border-color: var(--sa-accent);
    color: #fff;
}

.text-primary-brand { color: var(--sa-primary) !important; }
.bg-primary-brand { background-color: var(--sa-primary) !important; }
.text-success-brand { color: var(--sa-success) !important; }
.text-danger-brand { color: var(--sa-danger) !important; }

.navbar-brand img { height: 32px; }

.sa-sidebar {
    min-height: 100vh;
    background: linear-gradient(180deg, var(--sa-secondary), #111827);
    color: #fff;
}

.sa-sidebar a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    display: block;
    padding: 0.6rem 1rem;
    border-radius: 0.375rem;
}

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

.sa-sidebar .nav-section-title {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.75rem 1rem 0.25rem;
}

.kpi-card {
    border: none;
    border-radius: 0.75rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.hero-gradient {
    background: linear-gradient(135deg, var(--sa-primary), var(--sa-secondary));
    color: #fff;
}

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 0.75rem;
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--sa-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.table-responsive { border-radius: 0.5rem; }