/* ============================================================
   Feature · clientActivity
   ------------------------------------------------------------
   Every rule is scoped under `.feature-client-activity` so it
   never collides with styles.css / modernize.css / other
   features. Token-driven; no hard-coded color, spacing, or
   radius. Loaded after ui-primitives.css per
   migration/css-token-migration.md "Load order is the contract".

   The notes <form> uses `.ui-form` (Phase 13 form-shell
   extraction). This file holds only screen-level spacing,
   the split layout, the stale-warning strip, and the activity
   list visuals.

   Created by: Phase 16 — stale-data tolerance validation.
   ============================================================ */

.feature-client-activity {
  padding: var(--space-6) 0 var(--space-10);
}

.feature-client-activity .container {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  max-width: 1080px;
  margin: 0 auto;
  padding-inline: var(--space-4);
}

.feature-client-activity__header {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.feature-client-activity__state {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 240px;
}

/* ---- Split layout (mobile-first stack, side-by-side at md+). ---- */

.feature-client-activity__split {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.feature-client-activity__pane {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-4);
  border: 1px solid var(--color-border-subtle, var(--color-border));
  border-radius: var(--radius-md);
  background: var(--color-surface);
  min-width: 0;
}

.feature-client-activity__pane-header {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border-subtle, var(--color-border));
}

/* ---- Stale-warning strip. Openly admits the list may be outdated. ---- */

.feature-client-activity__stale {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border: 1px dashed var(--color-warning, var(--color-accent));
  border-radius: var(--radius-sm);
  background: var(--color-warning-soft,
    color-mix(in srgb, var(--color-warning, var(--color-accent)) 10%, transparent));
}

.feature-client-activity__stale-text {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-tight, 1.3);
}

.feature-client-activity__stale-text i {
  color: var(--color-warning, var(--color-accent));
}

.feature-client-activity__refresh-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-border-strong, var(--color-border));
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: background-color 120ms ease, border-color 120ms ease;
}

.feature-client-activity__refresh-btn:hover:not(:disabled) {
  background: var(--color-surface-hover, var(--color-surface));
  border-color: var(--color-border-strong, var(--color-border));
}

.feature-client-activity__refresh-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ---- Activity list body. ---- */

.feature-client-activity__activity-state,
.feature-client-activity__activity-error,
.feature-client-activity__activity-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 180px;
}

.feature-client-activity__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.feature-client-activity__item {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3);
  border: 1px solid var(--color-border-subtle, var(--color-border));
  border-radius: var(--radius-sm);
  background: var(--color-surface);
}

.feature-client-activity__item-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2);
  font-size: var(--font-size-xs);
}

.feature-client-activity__item-type {
  font-weight: 600;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.feature-client-activity__item-direction {
  color: var(--color-text-secondary);
}

.feature-client-activity__item-time {
  margin-left: auto;
  /* S13 — cross-surface metadata weighting. Matches the dossier
     activity row's timestamp tone (ClientActivitySection renders
     it via <Text tone="secondary">) so the same semantic role
     reads at the same weight on `/clients/:id` and `/clients/:id/activity`. */
  color: var(--color-text-secondary);
  font-variant-numeric: tabular-nums;
}

.feature-client-activity__item-content {
  margin: 0;
  font-size: var(--font-size-sm);
  line-height: var(--line-height-base, 1.5);
  color: var(--color-text);
  white-space: pre-wrap;
  word-break: break-word;
}

.feature-client-activity__item-author {
  margin: 0;
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

/* ============================================================
   S3 — semantic vocabulary continuation.
   ------------------------------------------------------------
   Inherits the S2 action-vocabulary split: CRUD/form actions
   use __action-btn (solid-accent primary + ghost subordinate);
   freshness-as-answer keeps __refresh-btn (used only inside
   the stale strip recovery context). The activity timestamp
   moves out of the identity pane header into a subordinate
   __filter-status one-liner so identity meta remains
   identity-only.
   ============================================================ */

.feature-client-activity__action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: var(--color-on-accent, var(--color-text-on-brand, #fff));
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 120ms ease, border-color 120ms ease, opacity 120ms ease;
}

.feature-client-activity__action-btn:hover:not(:disabled) {
  background: var(--color-accent-hover, var(--color-accent));
  border-color: var(--color-accent-hover, var(--color-accent));
}

.feature-client-activity__action-btn:disabled,
.feature-client-activity__action-btn[data-loading="true"] {
  opacity: 0.6;
  cursor: not-allowed;
}

.feature-client-activity__action-btn--ghost {
  background: transparent;
  color: var(--color-accent);
}

.feature-client-activity__action-btn--ghost:hover:not(:disabled) {
  background: var(--color-accent-soft);
}

.feature-client-activity__filter-status {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2) var(--space-4);
  padding-inline: var(--space-1);
  color: var(--color-text-secondary);
  font-size: var(--font-size-xs);
  line-height: var(--line-height-tight, 1.3);
}

.feature-client-activity__filter-status-timestamp {
  font-variant-numeric: tabular-nums;
  color: var(--color-text-tertiary);
}

/* ---- Side-by-side at md+. ---- */

@media (min-width: 960px) {
  .feature-client-activity {
    padding: var(--space-8) 0 var(--space-12);
  }

  .feature-client-activity__split {
    flex-direction: row;
    align-items: flex-start;
    gap: var(--space-5);
  }

  .feature-client-activity__pane--client {
    flex: 0 0 42%;
    max-width: 42%;
    position: sticky;
    top: var(--space-4);
  }

  .feature-client-activity__pane--activity {
    flex: 1 1 0;
    min-width: 0;
  }
}