/* ui_states.css — Phase 5: shared loading / empty / error state styling.
   Reuses existing style.css design tokens only (--surface, --border,
   --divider, --radius*, --text-muted, --blue-light, --error). No new
   colors are introduced. */

/* ── Skeleton (loading) ───────────────────────────────────────────────────── */
@keyframes ui-shimmer {
  0%   { background-position: -120% 0; }
  100% { background-position: 120% 0; }
}

.ui-skeleton-line,
.ui-skeleton-avatar,
.ui-skeleton-cell,
.ui-skeleton-block {
  background: linear-gradient(90deg, var(--divider) 25%, var(--bg-secondary) 37%, var(--divider) 63%);
  background-size: 400% 100%;
  animation: ui-shimmer 1.4s ease infinite;
  border-radius: var(--radius);
}

.ui-skeleton-rows { display: flex; flex-direction: column; gap: 14px; padding: 4px 0; }
.ui-skeleton-row { display: flex; align-items: center; gap: 10px; }
.ui-skeleton-avatar { width: 28px; height: 28px; border-radius: 50%; flex-shrink: 0; }
.ui-skeleton-row-lines { flex: 1; display: flex; flex-direction: column; gap: 6px; }
.ui-skeleton-line { height: 10px; }
.ui-skeleton-line-sm { height: 8px; }

.ui-skeleton-text { display: flex; flex-direction: column; gap: 8px; padding: 4px 0; }
.ui-skeleton-text .ui-skeleton-line { height: 11px; }

.ui-skeleton-table { display: flex; flex-direction: column; gap: 8px; padding: 4px 0; }
.ui-skeleton-table-row { display: flex; gap: 10px; }
.ui-skeleton-cell { height: 14px; flex: 1; }
.ui-skeleton-table-head .ui-skeleton-cell { height: 10px; opacity: 0.6; }

/* ── Empty / error states ─────────────────────────────────────────────────── */
.ui-empty-state,
.ui-error-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 32px 20px;
  gap: 6px;
}

.ui-state-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  color: var(--text-muted);
  margin-bottom: 6px;
}
.ui-state-icon svg { width: 20px; height: 20px; stroke-width: 1.6; }

.ui-state-icon-error {
  background: rgba(195, 95, 91, 0.12);
  color: var(--error);
}

.ui-state-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--navy);
}

.ui-state-message {
  font-size: 12px;
  color: var(--text-muted);
  max-width: 320px;
  line-height: 1.5;
}

.ui-state-action {
  margin-top: 8px;
  background: var(--blue-light);
  color: #FFF;
  border: none;
  border-radius: var(--radius);
  padding: 7px 16px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.ui-state-action:hover { background: var(--blue); }

.ui-state-action-retry {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}
.ui-state-action-retry:hover { background: var(--bg-secondary); }