.app-card {
  background: var(--app-surface);
  border: 1px solid var(--app-border);
  border-radius: var(--app-radius-md);
  box-shadow: var(--app-shadow-sm);
  overflow: hidden;
}

.app-card__header {
  padding: 0.75rem 1rem;
  background: var(--app-surface-raised);
  border-bottom: 1px solid var(--app-border);
}

.app-card__body {
  padding: 1rem;
}

.app-toolbar {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 1.25rem;
  background: var(--app-surface);
  border-bottom: 1px solid var(--app-border);
  flex-wrap: wrap;
}

.app-toolbar__group {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.app-toolbar__group--grow {
  flex: 1 1 auto;
}

.app-page-header {
  height: 3.25rem;
  padding: 0 1.25rem;
  background: color-mix(in srgb, var(--app-surface) 92%, transparent);
  border-bottom: 1px solid var(--app-border);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  position: sticky;
  top: 0;
  z-index: 10;
}

.app-page-header__kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--app-text-soft);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  white-space: nowrap;
}

.app-page-header__title {
  color: var(--app-text);
  font-size: 0.9rem;
  font-weight: 700;
  white-space: nowrap;
}

.app-page-header__spacer {
  flex: 1 1 auto;
}