:root {
  --bg: #f4f6fa;
}

body {
  background: var(--bg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.navbar-brand i { font-size: 1.2rem; }

.kpi .kpi-label {
  text-transform: uppercase;
  font-size: .72rem;
  letter-spacing: .5px;
  color: #6c757d;
}

.kpi .kpi-value {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.1;
}

.card { border: 1px solid #e6e9ef; border-radius: 12px; }
.card-header { border-bottom: 1px solid #eef0f5; border-radius: 12px 12px 0 0 !important; }

.msg-pre {
  background: #f8f9fa;
  border: 1px solid #e9ecef;
  border-radius: 8px;
  padding: 10px;
  font-size: .82rem;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 220px;
  overflow: auto;
  margin-bottom: .5rem;
}

.table > :not(caption) > * > * { vertical-align: middle; }

.badge { font-weight: 500; }

@media (max-width: 576px) {
  .kpi .kpi-value { font-size: 1.5rem; }
  h3 { font-size: 1.25rem; }
}