#kol-sandbox-ribbon {
  position: fixed; top: 0; left: 50%; transform: translateX(-50%);
  z-index: 2147483647; pointer-events: none; user-select: none;
  background: #b71c1c; color: #fff; padding: 1px 12px 2px;
  border-radius: 0 0 8px 8px; box-shadow: 0 1px 4px rgba(0,0,0,.35);
  font: 600 11px/1.5 -apple-system, system-ui, "Segoe UI", Roboto, sans-serif;
  letter-spacing: .04em; white-space: nowrap; opacity: .92;
}