.app {
  display: block;
  min-height: 100vh;
  width: 100%;
  margin: 0;
  background-color: var(--color-app-background);
}

.app-content {
  width: 100%;
  min-height: calc(100vh - var(--size-shell-bar-height));
  background-color: var(--color-app-background);
}

/* Phase17.3: visible security boundary for System Admin impersonation. */
.nimbus-impersonation-banner {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100000;
  min-height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 7px 16px;
  border-bottom: 1px solid #d2a742;
  background: #fff5d6;
  color: #493700;
  font-size: 13px;
  line-height: 20px;
}

.nimbus-impersonation-banner button {
  border: 1px solid #b58b25;
  border-radius: 4px;
  background: #fff;
  color: #493700;
  min-height: 26px;
  padding: 2px 10px;
  cursor: pointer;
  font: inherit;
}

body.nimbus-impersonating {
  padding-top: 38px;
}