body:has(.conversation-workspace) .shell { width: min(100%, 1560px); }

.conversation-workspace {
  display: grid;
  grid-template-columns: 210px 360px minmax(480px, 1fr);
  gap: 14px;
  align-items: start;
}

.conversation-sidebar,
.conversation-list-column,
.conversation-detail { min-width: 0; }
.conversation-sidebar,
.conversation-list-column,
.conversation-detail-card {
  border: 1px solid var(--za-line);
  border-radius: var(--za-radius-card);
  background: var(--za-surface);
}
.conversation-sidebar {
  position: sticky;
  top: 18px;
  display: grid;
  gap: 14px;
  padding: 16px;
}
.conversation-sidebar-head { display: grid; gap: 5px; }
.conversation-sidebar h2 { margin: 0; font-size: 22px; }
.conversation-sidebar p { font-size: 14px; line-height: 1.5; }
.conversation-sidebar nav { display: grid; gap: 5px; }
.conversation-sidebar nav button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 40px;
  padding: 8px 10px;
  color: var(--za-ink);
  background: transparent;
  border-color: transparent;
  text-align: left;
}
.conversation-sidebar nav button:hover { background: var(--za-neutral-soft); }
.conversation-sidebar nav button.active { color: #fff; background: var(--za-blue); }
.conversation-sidebar nav strong {
  display: grid;
  place-items: center;
  min-width: 26px;
  height: 24px;
  padding: 0 7px;
  border-radius: 999px;
  color: inherit;
  background: rgba(127, 127, 127, .14);
  font-size: 14px;
}
.conversation-sidebar nav button.active strong { background: rgba(255, 255, 255, .2); }
.conversation-refresh-meta {
  display: grid;
  gap: 4px;
  padding-top: 12px;
  border-top: 1px solid var(--za-line);
}
.conversation-refresh-meta span,
.conversation-refresh-meta small { color: var(--za-subtle); font-size: 14px; }
.conversation-refresh-meta strong { font-size: 14px; }

.conversation-list-column { padding: 14px; }
.conversation-search {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 8px;
  align-items: end;
}
.conversation-search label span,
.conversation-owner-filter span { font-size: 14px; }
.conversation-owner-filter { margin-top: 10px; }
.conversation-list { display: grid; gap: 7px; }
.conversation-list-item {
  display: grid;
  gap: 7px;
  width: 100%;
  min-height: 0;
  padding: 12px;
  color: var(--za-ink);
  background: var(--za-paper);
  border-color: var(--za-line);
  text-align: left;
}
.conversation-list-item:hover { color: var(--za-ink); background: var(--za-neutral-soft); }
.conversation-list-item[aria-selected="true"] {
  border-color: var(--za-blue);
  box-shadow: inset 3px 0 0 var(--za-blue);
  background: var(--za-blue-soft);
}
.conversation-list-head,
.conversation-list-meta,
.conversation-detail-head,
.conversation-section-head,
.conversation-card > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 9px;
}
.conversation-list-head strong { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.conversation-list-item h3 { margin: 0; font-size: 15px; }
.conversation-list-meta { justify-content: flex-start; flex-wrap: wrap; color: var(--za-subtle); font-size: 14px; }
.conversation-list-item small { color: var(--za-subtle); }
.conversation-badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}
.conversation-badge.success { color: #176b51; background: #e6f3ed; }
.conversation-badge.warn { color: var(--za-warn-text); background: var(--za-warn-soft); }
.conversation-badge.danger { color: var(--za-danger); background: var(--za-danger-soft); }
.conversation-badge.neutral { color: var(--za-muted); background: var(--za-neutral-soft); }
.conversation-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: 12px;
}
.conversation-pagination span { color: var(--za-muted); font-size: 14px; }
.conversation-pagination button:disabled { cursor: not-allowed; opacity: .45; }

.conversation-detail {
  position: sticky;
  top: 18px;
  max-height: calc(100vh - 36px);
  overflow: auto;
}
.conversation-detail-card { display: grid; gap: 18px; padding: 20px; }
.conversation-detail-head { align-items: flex-start; }
.conversation-detail-head h2 { margin: 4px 0; overflow-wrap: anywhere; }
.conversation-record-id { color: var(--za-blue-text); font-size: 14px; font-weight: 700; letter-spacing: .05em; }
.conversation-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 9px;
}
.conversation-facts div {
  display: grid;
  gap: 4px;
  min-width: 0;
  padding: 11px;
  border: 1px solid var(--za-line);
  border-radius: var(--za-radius-small);
  background: var(--za-paper);
}
.conversation-facts span { color: var(--za-subtle); font-size: 14px; }
.conversation-facts strong { overflow-wrap: anywhere; font-size: 15px; }
.conversation-detail-section { display: grid; gap: 12px; padding-top: 16px; border-top: 1px solid var(--za-line); }
.conversation-section-head { align-items: flex-start; }
.conversation-section-head span { color: var(--za-subtle); font-size: 14px; }
.conversation-section-head h3 { margin: 3px 0 0; font-size: 18px; }
.conversation-cards { display: grid; gap: 8px; }
.conversation-card {
  display: grid;
  gap: 5px;
  padding: 12px;
  border: 1px solid var(--za-line);
  border-radius: var(--za-radius-small);
  background: var(--za-paper);
}
.conversation-card p { margin: 0; overflow-wrap: anywhere; }
.conversation-card small { color: var(--za-subtle); }
.conversation-read-only,
.conversation-safety-note { padding: 13px; border-radius: var(--za-radius-small); background: var(--za-neutral-soft); }
.conversation-read-only p,
.conversation-safety-note p { margin: 5px 0 0; }
.conversation-safety-note { color: var(--za-blue-text); background: var(--za-blue-soft); }

.conversation-state {
  display: grid;
  place-items: center;
  align-content: center;
  min-height: 180px;
  padding: 24px;
  border: 1px dashed var(--za-line-strong);
  border-radius: var(--za-radius-card);
  color: var(--za-muted);
  background: var(--za-surface);
  text-align: center;
}
.conversation-state p { max-width: 440px; margin-top: 6px; }
.conversation-state-action { margin-top: 14px; }
.conversation-state-loading { color: var(--za-blue-text); background: var(--za-blue-soft); }
.conversation-state-error { color: var(--za-danger); background: var(--za-danger-soft); border-style: solid; }

@media (max-width: 1180px) {
  .conversation-workspace { grid-template-columns: 210px minmax(0, 1fr); }
  .conversation-detail { position: static; grid-column: 1 / -1; max-height: none; }
}
@media (max-width: 920px) {
  body:has(.conversation-workspace) .shell { width: 100%; }
  .conversation-workspace { grid-template-columns: 180px minmax(0, 1fr); }
  .conversation-search { grid-template-columns: 1fr 1fr; }
  .conversation-search label { grid-column: 1 / -1; }
}
@media (max-width: 680px) {
  .conversation-workspace { grid-template-columns: 1fr; }
  .conversation-sidebar,
  .conversation-detail { position: static; grid-column: auto; max-height: none; }
  .conversation-sidebar nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .conversation-detail-card { padding: 16px; }
}
@media (max-width: 520px) {
  .conversation-sidebar nav,
  .conversation-facts,
  .conversation-search { grid-template-columns: 1fr; }
  .conversation-search label { grid-column: auto; }
  .conversation-detail-head { align-items: stretch; flex-direction: column; }
  .conversation-pagination { flex-wrap: wrap; }
}