.page {
  padding: 1.25rem;
  max-width: 960px;
  margin: 0 auto;
  font-family: 'DM Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* Wide variant: take all available width. Used by data-heavy views (Stats,
 * Browser) where columns and charts benefit from the extra real estate. */
.pageWide {
  padding: 1.25rem;
  max-width: 100%;
  width: 100%;
  margin: 0;
  box-sizing: border-box;
  font-family: 'DM Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.heading {
  font-size: 1.35rem;
  font-weight: 600;
  margin: 0 0 1.25rem;
  color: var(--text-primary, #1a202c);
}

.subheading {
  font-size: 0.95rem;
  color: var(--text-secondary, #4a5568);
  margin: -0.75rem 0 1.25rem;
}

.section {
  margin-bottom: 1.75rem;
  padding: 1rem 1.25rem;
  background: var(--bg-card, #fff);
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: 8px;
}

.sectionTitle {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 0.85rem;
  color: var(--text-primary, #1a202c);
}

.field {
  margin-bottom: 0.85rem;
}

.label {
  display: block;
  font-size: 0.82rem;
  font-weight: 500;
  margin-bottom: 0.3rem;
  color: var(--text-primary, #1a202c);
}

.hint {
  font-size: 0.78rem;
  color: var(--text-secondary, #718096);
  margin-top: 0.25rem;
}

.input {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: 6px;
  font-size: 0.9rem;
  background: #fff;
  color: var(--text-primary, #1a202c);
  font-family: inherit;
  box-sizing: border-box;
}

.input:focus {
  outline: none;
  border-color: var(--primary-color, #4A6FA5);
  box-shadow: 0 0 0 2px rgba(74, 111, 165, 0.18);
}

.row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: flex-end;
}

.btn {
  padding: 0.55rem 1.1rem;
  background: var(--primary-color, #4A6FA5);
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: 500;
  font-family: inherit;
  transition: filter 0.15s;
}

.btn:hover:not(:disabled) { filter: brightness(1.08); }

.btn:disabled {
  background: var(--color-medium-gray, #cbd5e0);
  color: var(--text-secondary, #718096);
  cursor: not-allowed;
}

.btnSecondary {
  composes: btn;
  background: #fff;
  color: var(--primary-color, #4A6FA5);
  border: 1px solid var(--primary-color, #4A6FA5);
}

.btnSecondary:hover:not(:disabled) {
  background: rgba(74, 111, 165, 0.06);
  filter: none;
}

.btnDanger {
  composes: btn;
  background: #C53030;
}

.btnDanger:hover:not(:disabled) { filter: brightness(1.08); }

.alertOk {
  padding: 0.55rem 0.85rem;
  background: #e6fffa;
  color: #2c7a7b;
  border: 1px solid #b2f5ea;
  border-radius: 6px;
  margin-bottom: 0.85rem;
  font-size: 0.85rem;
}

.alertErr {
  padding: 0.55rem 0.85rem;
  background: #fff5f5;
  color: #c53030;
  border: 1px solid #fed7d7;
  border-radius: 6px;
  margin-bottom: 0.85rem;
  font-size: 0.85rem;
}

.alertInfo {
  padding: 0.55rem 0.85rem;
  background: #ebf8ff;
  color: #2c5282;
  border: 1px solid #bee3f8;
  border-radius: 6px;
  margin-bottom: 0.85rem;
  font-size: 0.85rem;
}

.kvGrid {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.4rem 1rem;
  font-size: 0.85rem;
  color: var(--text-secondary, #4a5568);
}

.kvLabel {
  font-weight: 500;
  color: var(--text-secondary, #4a5568);
}

.kvValue {
  color: var(--text-primary, #1a202c);
  font-variant-numeric: tabular-nums;
}

.loading {
  padding: 2rem;
  text-align: center;
  color: var(--text-secondary, #718096);
}

.placeholder {
  padding: 2rem;
  text-align: center;
  color: var(--text-secondary, #718096);
  background: var(--bg-card, #fff);
  border: 1px dashed var(--border-color, #e2e8f0);
  border-radius: 8px;
}

/* ================================================================== */
/*  Browser view: tree-as-table + editor split                         */
/* ================================================================== */

.browserPage {
  padding: 1rem 1.25rem;
  font-family: 'DM Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  height: calc(100vh - 140px);
  min-height: 540px;
}

.browserHeader {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1rem;
}

.browserFilters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 0.75rem;
  align-items: flex-end;
  padding: 0.75rem 1rem;
  background: var(--bg-card, #fff);
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: 8px;
}

.filterGroup { display: flex; flex-direction: column; gap: 0.25rem; min-width: 180px; }
.filterGroup label { font-size: 0.76rem; font-weight: 500; color: var(--text-secondary, #4a5568); }

.browserBody {
  display: grid;
  grid-template-columns: minmax(620px, 1.6fr) minmax(420px, 1fr);
  gap: 0.85rem;
  flex: 1;
  min-height: 0;
}

.browserTreeContainer,
.browserEditorContainer {
  background: var(--bg-card, #fff);
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.browserToolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.55rem 0.85rem;
  border-bottom: 1px solid var(--border-color, #e2e8f0);
  font-size: 0.82rem;
  color: var(--text-secondary, #4a5568);
}

.browserToolbar .linkBtn {
  background: none;
  border: none;
  color: var(--primary-color, #4A6FA5);
  font-size: 0.82rem;
  cursor: pointer;
  padding: 0.2rem 0.4rem;
  font-family: inherit;
}
.browserToolbar .linkBtn:hover { text-decoration: underline; }
.browserToolbar .linkBtn:disabled { color: var(--text-secondary, #a0aec0); cursor: not-allowed; text-decoration: none; }

/* Tree grid */
.treeScroll {
  flex: 1;
  min-height: 0;
  overflow: auto;
}

.treeGrid {
  display: grid;
  grid-template-columns: minmax(360px, 1fr) 110px 90px 160px 100px 110px;
  font-size: 0.84rem;
}

.treeHeader {
  display: contents;
}
.treeHeader > div {
  position: sticky;
  top: 0;
  z-index: 2;
  background: #F7FAFC;
  font-weight: 600;
  font-size: 0.76rem;
  color: var(--text-secondary, #4a5568);
  padding: 0.45rem 0.6rem;
  border-bottom: 1px solid var(--border-color, #e2e8f0);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.treeRow {
  display: contents;
  cursor: pointer;
}
.treeRow > div {
  padding: 0.4rem 0.6rem;
  border-bottom: 1px solid var(--border-color, #edf2f7);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
  line-height: 1.25;
}
.treeRow.selected > div { background: rgba(74, 111, 165, 0.12); }
.treeRow:hover:not(.selected) > div { background: #F7FAFC; }

.treeRow.orphan > div { background: #FFFBEB; font-style: italic; color: var(--text-secondary, #4a5568); }
.treeRow.orphan.selected > div { background: rgba(246, 173, 85, 0.22); }

.treeCell {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  min-width: 0;
}

.indent {
  flex: 0 0 18px;
  height: 22px;
  position: relative;
}
.indent.line::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--border-color, #cbd5e0);
}
.indentElbow {
  flex: 0 0 18px;
  height: 22px;
  position: relative;
}
.indentElbow::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 50%;
  width: 1px;
  background: var(--border-color, #cbd5e0);
}
.indentElbow.mid::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--border-color, #cbd5e0);
}
.indentElbow::before,
.indentElbow::after {
  box-sizing: border-box;
}
.indentElbow .elbowBar {
  position: absolute;
  left: 50%;
  right: -3px;
  top: 50%;
  height: 1px;
  background: var(--border-color, #cbd5e0);
}

.treeToggle {
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 3px;
  cursor: pointer;
  font-size: 0.7rem;
  color: var(--text-secondary, #4a5568);
  background: none;
  border: none;
  padding: 0;
}
.treeToggle:hover { background: #E2E8F0; }
.treeTogglePlaceholder { flex: 0 0 18px; }

.trackerPill {
  font-size: 0.72rem;
  padding: 2px 7px;
  border-radius: 999px;
  color: #fff;
  flex-shrink: 0;
  font-weight: 500;
}
.trackerPill.orphanPill {
  color: var(--text-secondary, #4a5568);
  background: transparent !important;
  border: 1px dashed var(--border-color, #cbd5e0);
}

.ticketId {
  color: var(--text-secondary, #718096);
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}
.ticketSubject {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}

.statusPill {
  display: inline-block;
  padding: 2px 7px;
  border-radius: 999px;
  font-size: 0.72rem;
  background: #E2E8F0;
  color: var(--text-primary, #2d3748);
}
.statusPill.closed { background: #C6F6D5; color: #22543d; }

.relBadge {
  font-size: 0.7rem;
  padding: 1px 6px;
  border-radius: 4px;
  border: 1px solid var(--border-color, #e2e8f0);
  color: var(--text-secondary, #718096);
  background: #F7FAFC;
}
.relBadge.root { background: rgba(74, 111, 165, 0.1); color: var(--primary-color, #4A6FA5); border-color: rgba(74, 111, 165, 0.3); }

.muted { color: var(--text-secondary, #a0aec0); }

/* Editor pane */
.editorScroll {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 0.85rem 1rem;
}

.editorHeader {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: 0.85rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border-color, #edf2f7);
}
.editorHeader h3 { margin: 0; font-size: 1.05rem; font-weight: 600; color: var(--text-primary, #1a202c); flex: 1; }

.editorGrid {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 0.5rem 0.85rem;
  align-items: start;
  font-size: 0.85rem;
}
.editorGrid .fullRow {
  grid-column: 1 / -1;
}
.editorGrid label { font-weight: 500; color: var(--text-secondary, #4a5568); padding-top: 0.45rem; }

.textarea {
  width: 100%;
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: 6px;
  font-size: 0.85rem;
  font-family: inherit;
  color: var(--text-primary, #1a202c);
  background: #fff;
  box-sizing: border-box;
  min-height: 140px;
  resize: vertical;
}
.textarea:focus { outline: none; border-color: var(--primary-color, #4A6FA5); box-shadow: 0 0 0 2px rgba(74, 111, 165, 0.18); }

.select {
  width: 100%;
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: 6px;
  font-size: 0.85rem;
  font-family: inherit;
  background: #fff;
  box-sizing: border-box;
}
.select:focus { outline: none; border-color: var(--primary-color, #4A6FA5); box-shadow: 0 0 0 2px rgba(74, 111, 165, 0.18); }

.buttonRow {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.85rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border-color, #edf2f7);
  justify-content: flex-end;
}

.relationList {
  margin: 0;
  padding-left: 1rem;
  font-size: 0.8rem;
  color: var(--text-secondary, #4a5568);
}
.relationList li { margin-bottom: 0.2rem; }