/* =============================================================================
 * Code Docs tab styles — split-pane reference + timeline feed
 * ========================================================================== */

#tab-codedocs.tab-content { padding: 0; }

.codedocs-root {
  display: flex; flex-direction: column;
  height: calc(100vh - 130px);
  min-height: 540px;
}

/* -----------------------------------------------------------------------------
 * Toolbar
 * -------------------------------------------------------------------------- */

.codedocs-toolbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 28px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  gap: 16px;
  flex-wrap: wrap;
}

.codedocs-toolbar-left,
.codedocs-toolbar-right {
  display: flex; align-items: center; gap: 12px;
}

.codedocs-branch-label {
  font-size: 12px;
  color: var(--text-mute);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.codedocs-branch-select {
  padding: 7px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--text);
  font-size: 13px;
  font-family: var(--font);
  cursor: pointer;
  min-width: 160px;
}
.codedocs-branch-select:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.codedocs-subtabs {
  display: flex;
  background: var(--bg-soft);
  border-radius: 999px;
  padding: 3px;
  margin-left: 6px;
}
.codedocs-subtab {
  background: transparent;
  border: none;
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-mute);
  cursor: pointer;
  font-family: var(--font);
  transition: background .15s, color .15s;
}
.codedocs-subtab:hover { color: var(--text); }
.codedocs-subtab.active {
  background: var(--panel);
  color: var(--accent);
  box-shadow: 0 1px 3px rgba(26,34,56,0.12);
}

.codedocs-search {
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--text);
  font-size: 13px;
  font-family: var(--font);
  min-width: 280px;
}
.codedocs-search:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.codedocs-meta {
  font-size: 12px;
  color: var(--text-mute);
  font-weight: 500;
}

.codedocs-stale-banner {
  background: var(--warn-soft);
  color: #8B6F00;
  padding: 10px 28px;
  font-size: 13px;
  border-bottom: 1px solid #F0D466;
}

/* -----------------------------------------------------------------------------
 * Sub-views
 * -------------------------------------------------------------------------- */

.codedocs-subview { display: none; flex: 1; min-height: 0; }
.codedocs-subview.active { display: flex; }

/* -----------------------------------------------------------------------------
 * Reference: tree (left) + detail (right)
 * -------------------------------------------------------------------------- */

#codedocs-reference { flex-direction: row; }

.codedocs-tree {
  width: 320px;
  background: var(--bg-soft);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 16px 12px;
  flex-shrink: 0;
}

.codedocs-area {
  margin-bottom: 14px;
}
.codedocs-area-header {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-mute);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 8px 8px;
}
.codedocs-area-empty {
  font-size: 12px;
  color: var(--text-faint);
  font-style: italic;
  padding: 4px 8px 8px;
}

.codedocs-module {
  margin-bottom: 4px;
}
.codedocs-module-toggle {
  display: flex; align-items: center; gap: 6px;
  width: 100%;
  background: transparent;
  border: none;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  font-size: 12.5px;
  font-family: var(--mono);
  color: var(--text);
  cursor: pointer;
  text-align: left;
}
.codedocs-module-toggle:hover { background: var(--panel); }
.codedocs-module-toggle .chev {
  display: inline-block;
  width: 10px;
  font-size: 10px;
  color: var(--text-faint);
  transition: transform .15s;
}
.codedocs-module.expanded .codedocs-module-toggle .chev {
  transform: rotate(90deg);
}
.codedocs-module-name {
  flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.codedocs-module-count {
  font-size: 10px;
  color: var(--text-faint);
  background: var(--panel);
  padding: 1px 7px;
  border-radius: 999px;
  font-family: var(--font);
  font-weight: 600;
}

.codedocs-symbols {
  display: none;
  margin-left: 16px;
  border-left: 1px solid var(--border);
  padding-left: 6px;
  margin-top: 2px;
}
.codedocs-module.expanded .codedocs-symbols { display: block; }

.codedocs-symbol {
  display: flex; align-items: center; gap: 8px;
  width: 100%;
  background: transparent;
  border: none;
  padding: 5px 8px;
  border-radius: 6px;
  font-size: 12.5px;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  font-family: var(--font);
}
.codedocs-symbol:hover { background: var(--panel); }
.codedocs-symbol.selected {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}
.codedocs-symbol-name {
  flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  font-family: var(--mono); font-size: 12px;
}
.codedocs-kind-badge {
  font-size: 9.5px;
  padding: 1px 6px;
  border-radius: 999px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  background: var(--bg-soft);
  color: var(--text-mute);
  border: 1px solid var(--border);
}
.codedocs-kind-fn      { background: #E6F0FB; color: #2868B8; border-color: #BCD8F2; }
.codedocs-kind-class   { background: #F2E9FB; color: #6B3DA8; border-color: #D8C3F0; }
.codedocs-kind-method  { background: #FFF1E0; color: #B85F0E; border-color: #F7D8B5; }
.codedocs-kind-const   { background: #E8F6F1; color: #1FA98F; border-color: #BFE6D8; }

/* Detail pane (right) */

.codedocs-detail {
  flex: 1;
  overflow-y: auto;
  padding: 28px 36px;
  background: var(--bg);
  min-width: 0;
}

.codedocs-empty {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-mute);
}
.codedocs-empty h3 {
  font-size: 18px;
  color: var(--text);
  margin-bottom: 8px;
  font-weight: 600;
}
.codedocs-empty p { font-size: 14px; margin-bottom: 4px; }

/* Symbol card */

.codedocs-card {
  background: var(--panel);
  border-radius: var(--radius);
  padding: 28px 32px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-soft);
  max-width: 880px;
}

.codedocs-card-head {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 6px;
  flex-wrap: wrap;
}
.codedocs-card-head h2 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
  font-family: var(--mono);
}

.codedocs-file-link {
  font-size: 12px;
  color: var(--text-mute);
  font-family: var(--mono);
  text-decoration: none;
}
.codedocs-file-link:hover { color: var(--accent); }

.codedocs-copy-link {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  font-size: 11px;
  color: var(--text-mute);
  cursor: pointer;
  font-family: var(--font);
}
.codedocs-copy-link:hover { background: var(--bg-soft); color: var(--text); }

.codedocs-signature {
  display: block;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text);
  margin: 10px 0 24px;
  overflow-x: auto;
  white-space: pre;
}

.codedocs-section { margin-bottom: 24px; }
.codedocs-section-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
  display: flex; align-items: center; gap: 6px;
}
.codedocs-section-title::before {
  content: "";
  display: inline-block;
  width: 14px; height: 2px;
  background: var(--accent);
  border-radius: 1px;
}
.codedocs-section p {
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--text);
}
.codedocs-section ol,
.codedocs-section ul {
  padding-left: 22px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--text);
}
.codedocs-section ol li,
.codedocs-section ul li { margin-bottom: 6px; }

.codedocs-gotchas-callout {
  background: var(--warn-soft);
  border-left: 3px solid var(--warn);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
}
.codedocs-gotchas-callout ul {
  list-style-type: "⚠  ";
  padding-left: 22px;
}
.codedocs-gotchas-callout li { color: #8B6F00; font-size: 13.5px; }

.codedocs-params-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.codedocs-params-table th {
  font-size: 10.5px;
  text-align: left;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-mute);
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
}
.codedocs-params-table td {
  padding: 9px 10px;
  border-bottom: 1px solid var(--border-soft);
  vertical-align: top;
}
.codedocs-params-table td:nth-child(1) { font-family: var(--mono); font-weight: 600; color: var(--accent); }
.codedocs-params-table td:nth-child(2) { font-family: var(--mono); color: var(--text-mute); font-size: 12px; }

.codedocs-related-row {
  display: flex; flex-wrap: wrap; gap: 8px;
}
.codedocs-chip {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-family: var(--mono);
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
}
.codedocs-chip:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}
.codedocs-chip-tag {
  background: #EAF1FB;
  color: var(--info);
  border-color: #C7DAF1;
  font-family: var(--font);
  cursor: default;
}
.codedocs-chip-tag:hover {
  background: #EAF1FB;
  color: var(--info);
  border-color: #C7DAF1;
}

.codedocs-example {
  background: #1A2238;
  color: #E5EDF7;
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  font-family: var(--mono);
  font-size: 12.5px;
  overflow-x: auto;
  white-space: pre;
  line-height: 1.55;
}

.codedocs-returns {
  font-family: var(--mono);
  background: var(--bg-soft);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  border: 1px solid var(--border);
  display: inline-block;
}

/* -----------------------------------------------------------------------------
 * Timeline sub-view
 * -------------------------------------------------------------------------- */

#codedocs-timeline {
  flex-direction: column;
  overflow-y: auto;
  padding: 24px 36px 40px;
}

.codedocs-timeline-filters {
  display: flex; gap: 10px; align-items: center;
  margin-bottom: 24px;
}
.codedocs-tag-filter,
.codedocs-range-filter {
  padding: 7px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--text);
  font-size: 13px;
  font-family: var(--font);
  cursor: pointer;
}

.codedocs-timeline-feed {
  position: relative;
  padding-left: 32px;
  max-width: 920px;
}
.codedocs-timeline-feed::before {
  content: "";
  position: absolute;
  left: 8px; top: 8px; bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--sky-1), var(--accent));
  border-radius: 2px;
  opacity: 0.35;
}

.codedocs-date-group {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-mute);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 22px 0 10px -12px;
  padding-left: 12px;
}
.codedocs-date-group:first-child { margin-top: 0; }

.codedocs-event {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 12px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .15s, border-color .15s;
}
.codedocs-event::before {
  content: "";
  position: absolute;
  left: -29px; top: 22px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 2px var(--accent);
}
.codedocs-event:hover {
  box-shadow: var(--shadow);
  border-color: var(--border);
}

.codedocs-event-head {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 6px;
  cursor: pointer;
}
.codedocs-event-time {
  font-size: 11.5px;
  color: var(--text-faint);
  font-family: var(--mono);
  flex-shrink: 0;
}
.codedocs-event-title {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text);
  flex: 1;
  letter-spacing: -0.005em;
}
.codedocs-event-toggle {
  font-size: 12px;
  color: var(--text-faint);
  background: transparent;
  border: none;
  cursor: pointer;
}

.codedocs-event-request {
  font-size: 12.5px;
  color: var(--text-mute);
  font-style: italic;
  margin-bottom: 8px;
  padding-left: 1px;
}
.codedocs-event-summary {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--text);
  margin: 8px 0 12px;
  display: none;
}
.codedocs-event.expanded .codedocs-event-summary { display: block; }

.codedocs-event-meta {
  display: flex; flex-wrap: wrap; gap: 6px;
  font-size: 11.5px;
  color: var(--text-mute);
  align-items: center;
}
.codedocs-event-files {
  font-family: var(--mono);
  color: var(--text-mute);
}
.codedocs-event-symbols {
  display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px;
}
.codedocs-event-symbol {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 11.5px;
  font-family: var(--mono);
  color: var(--text);
  cursor: pointer;
}
.codedocs-event-symbol:hover {
  background: var(--accent-soft); color: var(--accent); border-color: var(--accent);
}
.codedocs-event-symbol .change-added    { color: var(--ok); font-weight: 700; }
.codedocs-event-symbol .change-modified { color: var(--info); font-weight: 700; }
.codedocs-event-symbol .change-removed  { color: var(--err); font-weight: 700; }
.codedocs-event-symbol .change-renamed  { color: var(--accent); font-weight: 700; }

.codedocs-event-tags {
  display: flex; flex-wrap: wrap; gap: 4px; margin-top: 8px;
}
.codedocs-event-tag {
  font-size: 10.5px;
  background: #EAF1FB;
  color: var(--info);
  padding: 2px 8px;
  border-radius: 999px;
  font-weight: 600;
}

/* -----------------------------------------------------------------------------
 * Loader / error states
 * -------------------------------------------------------------------------- */

.codedocs-loader {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-mute);
  font-size: 14px;
}

/* -----------------------------------------------------------------------------
 * Flow sub-view (interactive SVG diagrams with animated data)
 * -------------------------------------------------------------------------- */

#codedocs-flow {
  flex-direction: column;
  overflow: hidden;
  padding: 0;
}

.codedocs-flow-toolbar {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 28px 10px;
  flex-wrap: wrap;
}

.codedocs-flow-picker {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--text);
  font-size: 13px;
  font-family: var(--font);
  font-weight: 500;
  cursor: pointer;
  min-width: 320px;
}
.codedocs-flow-picker:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.codedocs-flow-loop {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12.5px;
  color: var(--text-mute);
  cursor: pointer;
}
.codedocs-flow-loop input { cursor: pointer; }

.codedocs-flow-zoom {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 2px;
  background: var(--bg-soft);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}
.codedocs-flow-zoom .btn {
  padding: 4px 10px;
  font-size: 13px;
  font-weight: 600;
  border: none;
  background: transparent;
  color: var(--text);
  min-width: 30px;
}
.codedocs-flow-zoom .btn:hover {
  background: #fff;
  border: none;
}
.codedocs-flow-zoom-label {
  font-size: 11.5px;
  color: var(--text-mute);
  font-variant-numeric: tabular-nums;
  padding: 0 8px 0 4px;
  font-weight: 600;
  min-width: 44px;
  text-align: right;
}

.codedocs-flow-meta {
  font-size: 12px;
  color: var(--text-faint);
  margin-left: auto;
}

.codedocs-flow-description {
  padding: 0 28px 12px;
  font-size: 13.5px;
  color: var(--text-mute);
  line-height: 1.55;
  max-width: 1100px;
}

.codedocs-flow-canvas {
  flex: 1;
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: auto;
  position: relative;
  cursor: grab;
}
.codedocs-flow-canvas:active { cursor: grabbing; }

.codedocs-flow-canvas svg {
  display: block;
  user-select: none;
}

.codedocs-flow-legend {
  display: flex; align-items: center; gap: 14px;
  padding: 10px 28px;
  font-size: 11.5px;
  flex-wrap: wrap;
}
.codedocs-flow-legend-item {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid;
  font-weight: 600;
}
.codedocs-flow-legend-item::before {
  content: "";
  width: 8px; height: 8px;
  border-radius: 50%;
  background: currentColor;
}
.codedocs-flow-legend-hint {
  margin-left: auto;
  color: var(--text-faint);
  font-style: italic;
}

/* Area colour tokens used by both legend and SVG nodes */
.codedocs-area-app        { color: #2868B8; background: #EAF1FB; border-color: #BCD8F2; }
.codedocs-area-firmware   { color: #B85F0E; background: #FFE8DA; border-color: #F7D8B5; }
.codedocs-area-functions  { color: #1FA98F; background: #DCF3EE; border-color: #BFE6D8; }
.codedocs-area-admin      { color: #6B3DA8; background: #F2E9FB; border-color: #D8C3F0; }

/* SVG nodes */
.flow-node {
  cursor: pointer;
  transition: transform .18s, filter .18s;
}
.flow-node:hover { filter: drop-shadow(0 6px 14px rgba(26,34,56,0.14)); }
.flow-node:hover .flow-node-bg { stroke-width: 2.5; }
.flow-node.selected .flow-node-bg {
  stroke-width: 3;
  stroke: var(--accent);
}
.flow-node.dim { opacity: 0.38; transition: opacity .18s; }
.flow-node-bg {
  rx: 12;
  stroke-width: 1.5;
  filter: drop-shadow(0 2px 4px rgba(26,34,56,0.06));
  transition: stroke-width .15s;
}
.flow-node-dot {
  r: 4;
}
.flow-node-title {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 12.5px;
  fill: var(--text);
  pointer-events: none;
}
.flow-node-subtitle {
  font-size: 10.5px;
  fill: var(--text-mute);
  pointer-events: none;
}
.flow-node-kind {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  pointer-events: none;
}

/* Edges */
.flow-edge { transition: opacity .15s; }
.flow-edge.dim { opacity: 0.18; }
.flow-edge-path {
  fill: none;
  stroke-width: 1.7;
  transition: stroke-width .15s;
}
.flow-edge:hover .flow-edge-path { stroke-width: 2.6; }
.flow-edge-path.kind-return {
  stroke-dasharray: 4 4;
  opacity: 0.9;
}
.flow-edge-path.kind-event {
  stroke-dasharray: 1 5;
  stroke-linecap: round;
  opacity: 0.85;
}
.flow-edge-label {
  font-size: 10.5px;
  fill: var(--text-mute);
  paint-order: stroke;
  stroke: rgba(245, 248, 252, 0.95);
  stroke-width: 4px;
  stroke-linejoin: round;
  pointer-events: none;
  font-weight: 500;
}

/* Animated data particle */
.flow-particle {
  r: 5;
  filter: drop-shadow(0 0 6px currentColor);
  pointer-events: none;
}
.flow-particle-trail {
  r: 8;
  opacity: 0.35;
  pointer-events: none;
}

/* Edge highlight while a particle is on it */
.flow-edge.active .flow-edge-path {
  stroke-width: 3;
  filter: drop-shadow(0 0 4px currentColor);
}