/*
 * Shared UI states (HadronState in js/core/table_utils.js; docs/ui/copy-style.md, "States").
 * Loading, empty, error, unknown / not measured, pending / provisional and read-only look the same on every screen.
 * Theme tokens only: light and dark come from the Carbon theme zone.
 */
.hd-state {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--cds-spacing-03, 8px);
  padding: var(--cds-spacing-07, 32px) var(--cds-spacing-06, 24px);
  background: var(--cds-layer-01);
  border: 1px solid var(--cds-border-subtle-01);
  color: var(--cds-text-primary);
  min-width: 0;
  max-width: 100%;
  overflow-wrap: anywhere;
}
.hd-state__title {
  margin: 0;
  font-size: var(--cds-heading-03-font-size, 1.25rem);
  font-weight: var(--fw-regular);
  line-height: var(--lh-normal);
  color: var(--cds-text-primary);
}
.hd-state__text {
  margin: 0;
  max-width: 72ch;
  color: var(--cds-text-secondary);
  font-size: var(--cds-body-01-font-size, 0.875rem);
  line-height: var(--lh-normal);
}
.hd-state__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--cds-spacing-03, 8px);
  margin-top: var(--cds-spacing-03, 8px);
}
.hd-state__btn {
  min-height: 32px;
  padding: 0 var(--cds-spacing-05, 16px);
  border: 1px solid var(--cds-border-strong-01);
  background: transparent;
  color: var(--cds-text-primary);
  font: inherit;
  cursor: pointer;
}
.hd-state__btn:hover { background: var(--cds-layer-hover-01, var(--cds-layer-02)); }
.hd-state__btn:focus-visible { outline: var(--hx-focus-ring-width) solid var(--cds-focus); outline-offset: var(--hx-focus-ring-inset); }
.hd-state__btn--primary {
  background: var(--cds-interactive);
  border-color: var(--cds-interactive);
  color: var(--cds-text-on-color);
}
.hd-state__btn--primary:hover { background: var(--cds-interactive-hover, var(--cds-interactive)); }

/* loading and pending: a spinner beside the words */
.hd-state--loading,
.hd-state--pending {
  flex-direction: row;
  align-items: center;
  gap: var(--cds-spacing-04, 12px);
  padding: var(--cds-spacing-06, 20px) var(--cds-spacing-06, 24px);
}
.hd-state--pending { align-items: flex-start; border-left: 3px solid var(--cds-support-info); }
.hd-state__spin {
  flex: none;
  width: 16px;
  height: 16px;
  border: 2px solid var(--cds-border-subtle-01);
  border-top-color: var(--cds-interactive);
  border-radius: var(--hx-radius-round);
  animation: hd-state-spin var(--cds-motion-blink) linear infinite;
}
@keyframes hd-state-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .hd-state__spin { animation-duration: 2.4s; } }

.hd-state--error { border-left: 3px solid var(--cds-support-error); }
.hd-state--unknown { border-left: 3px solid var(--cds-border-strong-01); }
.hd-state--readonly {
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  padding: var(--cds-spacing-04, 12px) var(--cds-spacing-05, 16px);
  border-left: 3px solid var(--cds-support-info);
}
.hd-state--readonly .hd-state__actions { margin-top: 0; }

/* Inline: a value that was not measured, and a provisional mark. */
.hd-unknown {
  color: var(--cds-text-secondary);
  font-style: italic;
  white-space: nowrap;
}
.hd-provisional {
  display: inline-block;
  padding: 0 var(--cds-spacing-03, 8px);
  border: 1px dashed var(--cds-support-warning);
  color: var(--cds-text-primary);
  font-size: var(--cds-label-01-font-size, 0.75rem);
  line-height: var(--lh-relaxed);
  white-space: nowrap;
}

/* An empty table: the empty state inside the one full-width cell. */
.hd-state-cell { padding: 0; }
.hd-state-cell > .hd-state { border: 0; align-items: center; text-align: center; padding: var(--cds-spacing-09, 48px) var(--cds-spacing-05, 16px); }

/* The file uploader's drop zone (carbon-components.js), styled here instead of inline. */
.cds--file__drop-container {
  padding: var(--cds-spacing-06, 24px);
  border: 1px dashed var(--cds-border-strong-01);
  color: var(--cds-text-secondary);
  text-align: center;
  cursor: pointer;
}

/* Shell pieces whose inline styles moved here (js/core/shell.js): the connection banner and the selftest dialog. */
.heartbeat-banner-body { display: flex; align-items: center; gap: var(--cds-spacing-04, 12px); min-width: 0; }
.heartbeat-retry-btn { height: 1.85rem; padding: 0 var(--cds-spacing-04, 12px); font-size: var(--cds-label-01-font-size, 0.75rem); }
.selftest-summary {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: var(--cds-spacing-03, 8px); margin-bottom: var(--cds-spacing-05, 16px);
}
.selftest-time { font-family: var(--cds-font-mono, monospace); font-size: var(--cds-label-01-font-size, 0.75rem); color: var(--cds-text-secondary); }
.selftest-table { width: 100%; font-size: var(--cds-label-01-font-size, 0.75rem); }
.selftest-mono { font-family: var(--cds-font-mono, monospace); overflow-wrap: anywhere; }
.selftest-detail { color: var(--cds-text-secondary); }