:root {
    --brand-primary: #0d6efd;
    --brand-secondary: #6c757d;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

.kpi-card {
    background: #fff;
    border-radius: 0.5rem;
    padding: 1rem 1.25rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.kpi-card .label {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: #6c757d;
    letter-spacing: 0.04em;
}

.kpi-card .value {
    font-size: 1.5rem;
    font-weight: 600;
    color: #212529;
    margin-top: 0.25rem;
}

.kpi-card .delta {
    font-size: 0.85rem;
    margin-top: 0.25rem;
}

.kpi-card .delta.positive { color: #198754; }
.kpi-card .delta.negative { color: #dc3545; }
.kpi-card .delta.muted    { color: #6c757d; }

.markdown p { margin-bottom: 0.75rem; }
.markdown h1, .markdown h2, .markdown h3 { margin-top: 1rem; }