/* Lighting Budget module styles. All colors come from CSS custom-property tokens. */

[data-module="lighting-budget"] .lb-root {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 56px);
  background: var(--bg);
  color: var(--text-primary);
}

[data-module="lighting-budget"] .lb-toolbar {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  flex-wrap: wrap;
}

[data-module="lighting-budget"] .lb-toolbar h2 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

[data-module="lighting-budget"] .lb-pill {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  background: var(--accent-soft, var(--panel-2));
  color: var(--accent);
  border: 1px solid var(--accent);
}

[data-module="lighting-budget"] .lb-pill-phase {
  text-transform: uppercase;
}

[data-module="lighting-budget"] .lb-compare-select {
  background: var(--panel);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 8px;
  font-size: 12px;
  font-family: inherit;
}

[data-module="lighting-budget"] .lb-tag-adjust {
  background: var(--warning-soft, var(--panel-2));
  color: var(--warning);
  border-color: var(--warning);
}

[data-module="lighting-budget"] .lb-toolbar-spacer { flex: 1; }

[data-module="lighting-budget"] .lb-summary {
  display: flex;
  gap: 16px;
  font-size: 13px;
  color: var(--text-secondary);
}

[data-module="lighting-budget"] .lb-summary strong {
  color: var(--text-primary);
}

[data-module="lighting-budget"] .lb-tree-wrap {
  flex: 1;
  overflow: auto;
  padding: 0;
  background: var(--bg);
  min-height: 0;
}

@keyframes lb-check-focus-pulse {
  0% { box-shadow: inset 0 0 0 2px var(--accent); background: var(--accent-soft); }
  100% { box-shadow: inset 0 0 0 0 transparent; background: transparent; }
}

[data-module="lighting-budget"] .lb-check-focus-pulse {
  animation: lb-check-focus-pulse 1200ms ease-out;
}

@media (prefers-reduced-motion: reduce) {
  [data-module="lighting-budget"] .lb-check-focus-pulse {
    animation: none;
    box-shadow: inset 0 0 0 2px var(--accent);
    background: var(--accent-soft);
  }
}

/* ── Popover surface ────────────────────────────────────────────────── */
/* z-index 5000 sits between platform popovers (4000) and help panel
 * (5500), per platform.md z-scale. The popover is position: fixed so
 * the trigger's getBoundingClientRect coords map directly. */
.lb-pop {
  position: fixed;
  z-index: 5000;
  background: var(--panel);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  box-shadow: 0 16px 56px rgba(0, 0, 0, 0.55);
  overflow: hidden;
  font-family: inherit;
  color: var(--text-primary);
}
[data-theme="light"] .lb-pop {
  box-shadow: 0 16px 56px rgba(0, 0, 0, 0.14);
}

.lb-pop-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  background: var(--panel-2);
}

.lb-pop-title {
  font-size: 12px;
  font-weight: 700;
  flex: 1;
  letter-spacing: 0.02em;
  color: var(--text-primary);
}

.lb-pop-close {
  width: 22px;
  height: 22px;
  border: none;
  background: transparent;
  color: var(--text-tertiary);
  cursor: pointer;
  border-radius: 4px;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lb-pop-close:hover {
  background: var(--border);
  color: var(--text-primary);
}

.lb-pop-body {
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.lb-pop-foot {
  padding: 10px 12px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 6px;
  background: var(--panel-2);
}

/* Popover sizes */
.lb-pop-sm  { width: 280px; }
.lb-pop-md  { width: 380px; }
.lb-pop-lg  { width: 520px; }

/* Insights popover -- the metrics that used to live in the sidebar */
.lb-pop-insights {
  max-height: min(600px, calc(100vh - 80px));
  overflow-y: auto;
}

.lb-pop-section + .lb-pop-section {
  border-top: 1px solid var(--border);
}

.lb-pop-section {
  padding: 10px 12px;
}

.lb-pop-section h4 {
  margin: 0 0 6px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-tertiary);
}

/* ── Catalog badge (per fixture row) ─────────────────────────────────── */
[data-module="lighting-budget"] .lb-cat-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 1px 6px;
  margin-left: 6px;
  border-radius: 3px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
  border: 1px solid;
  background: transparent;
  white-space: nowrap;
  font-family: inherit;
}

[data-module="lighting-budget"] .lb-cat-linked {
  background: var(--success-soft, var(--accent-soft));
  color: var(--success, var(--accent));
  border-color: var(--success, var(--accent));
}

[data-module="lighting-budget"] .lb-cat-linked:hover {
  background: var(--success, var(--accent));
  color: var(--bg);
}

[data-module="lighting-budget"] .lb-cat-warn {
  background: var(--warning-soft);
  color: var(--warning);
  border-color: var(--warning);
}

[data-module="lighting-budget"] .lb-cat-warn:hover {
  background: var(--warning);
  color: var(--bg);
}

[data-module="lighting-budget"] .lb-cat-unlinked {
  border-color: var(--border);
  color: var(--text-tertiary);
  border-style: dashed;
}

[data-module="lighting-budget"] .lb-cat-unlinked:hover {
  border-color: var(--accent);
  color: var(--accent);
  border-style: solid;
}

/* ── Drift badge (FL <-> LB SKU divergence; catalog-browser refactor C) ── */
[data-module="lighting-budget"] .lb-drift-badge {
  display: inline-flex;
  align-items: center;
  margin-left: 4px;
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  background: var(--error-soft);
  color: var(--error);
  border: 1px solid var(--error);
  transition: background 0.12s;
}
[data-module="lighting-budget"] .lb-drift-badge:hover {
  background: var(--error);
  color: var(--panel);
}

/* ── Divergence compare popover ─────────────────────────────────────── */
[data-module="lighting-budget"] .lb-pop-divergence .lb-div-body {
  padding: 0;
}
[data-module="lighting-budget"] .lb-div-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
}
[data-module="lighting-budget"] .lb-div-col {
  background: var(--panel);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
[data-module="lighting-budget"] .lb-div-col-head {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
}
[data-module="lighting-budget"] .lb-div-mfr {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
}
[data-module="lighting-budget"] .lb-div-part {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  word-break: break-word;
}
[data-module="lighting-budget"] .lb-div-sub {
  font-size: 11px;
  color: var(--text-tertiary);
  line-height: 1.4;
  word-break: break-word;
}
[data-module="lighting-budget"] .lb-div-price {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-top: 1px dashed var(--border);
  padding-top: 6px;
  margin-top: 4px;
}
[data-module="lighting-budget"] .lb-div-price span {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-tertiary);
}
[data-module="lighting-budget"] .lb-div-price strong {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
}
[data-module="lighting-budget"] .lb-div-foot {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
[data-module="lighting-budget"] .lb-div-ack-btn {
  margin-right: auto;
}

[data-module="lighting-budget"] .lb-tree {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

[data-module="lighting-budget"] .lb-tree th {
  position: sticky;
  top: 0;
  background: var(--panel-2);
  border-bottom: 1px solid var(--border);
  padding: 8px 12px;
  text-align: left;
  font-weight: 600;
  font-size: 12px;
  color: var(--text-secondary);
  z-index: 2;
}

/* Sticky Description column. Note the panel base + tint pattern from
 * channel-schedule frozen cells -- semi-transparent row tints would
 * let the cells underneath show through during horizontal scroll;
 * layering tint over var(--panel) keeps the sticky column opaque. */
[data-module="lighting-budget"] .lb-tree .lb-col-desc {
  position: sticky;
  left: 0;
  z-index: 3;
  background: var(--bg);
  box-shadow: inset -1px 0 0 var(--border);
}

[data-module="lighting-budget"] .lb-tree th.lb-col-desc {
  z-index: 4;
  background: var(--panel-2);
}

[data-module="lighting-budget"] .lb-tree tr.lb-row:hover .lb-col-desc {
  background: linear-gradient(var(--row-hover), var(--row-hover)), var(--panel);
}

[data-module="lighting-budget"] .lb-tree tr.lb-row-selected .lb-col-desc {
  background: linear-gradient(var(--accent-soft, var(--row-hover)), var(--accent-soft, var(--row-hover))), var(--panel);
}

[data-module="lighting-budget"] .lb-tree tr.lb-row-group .lb-col-desc {
  background: var(--panel-2);
}

/* Sticky footer Grand Total row */
[data-module="lighting-budget"] .lb-foot-row td {
  position: sticky;
  bottom: 0;
  background: var(--panel);
  border-top: 2px solid var(--border-strong);
  padding: 10px 12px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  z-index: 5;
}

[data-module="lighting-budget"] .lb-foot-row .lb-col-desc {
  z-index: 6;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
}

[data-module="lighting-budget"] .lb-foot-total {
  font-size: 15px;
  color: var(--text-primary);
}

[data-module="lighting-budget"] .lb-tree td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

[data-module="lighting-budget"] .lb-tree tr.lb-row {
  cursor: pointer;
}

[data-module="lighting-budget"] .lb-tree tr.lb-row:hover {
  background: var(--row-hover);
}

[data-module="lighting-budget"] .lb-tree tr.lb-row.lb-row-selected {
  background: var(--row-selected, var(--accent-soft));
}

[data-module="lighting-budget"] .lb-tree tr.lb-row-virtual td {
  background: var(--panel-2);
  font-weight: 600;
  color: var(--text-primary);
}

[data-module="lighting-budget"] .lb-cell-edit {
  cursor: text;
  border-radius: 3px;
}

[data-module="lighting-budget"] .lb-cell-edit:hover {
  outline: 1px solid var(--border);
  background: var(--panel-2);
}

[data-module="lighting-budget"] .lb-cell-edit[data-editing="1"]:hover {
  outline: none;
}

[data-module="lighting-budget"] .lb-edit-target {
  cursor: text;
  border-radius: 3px;
  padding: 1px 4px;
}

[data-module="lighting-budget"] .lb-edit-target:hover {
  background: var(--panel-2);
  outline: 1px solid var(--border);
}

[data-module="lighting-budget"] .lb-cell-input {
  width: 100%;
  box-sizing: border-box;
  background: var(--bg);
  color: var(--text-primary);
  border: 1px solid var(--accent);
  border-radius: 3px;
  padding: 4px 8px;
  font: inherit;
  font-variant-numeric: tabular-nums;
}

[data-module="lighting-budget"] .lb-cell-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft, transparent);
}

[data-module="lighting-budget"] .lb-tree tr.lb-row-group td {
  font-weight: 600;
  background: var(--panel-2);
}

[data-module="lighting-budget"] .lb-tree tr.lb-row-placeholder td {
  font-style: italic;
  color: var(--text-secondary);
}

[data-module="lighting-budget"] .lb-cell-num {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

[data-module="lighting-budget"] .lb-cell-money {
  text-align: right;
  font-variant-numeric: tabular-nums;
  color: var(--text-primary);
}

[data-module="lighting-budget"] .lb-cell-computed {
  text-align: right;
  font-variant-numeric: tabular-nums;
  color: var(--text-tertiary);
  cursor: help;
  font-style: italic;
}

[data-module="lighting-budget"] .lb-cell-text {
  vertical-align: middle;
}

[data-module="lighting-budget"] .lb-cell-text .lb-mono {
  font-family: monospace;
  font-size: 12px;
}

[data-module="lighting-budget"] .lb-cell-placeholder {
  color: var(--text-tertiary);
  font-style: italic;
  font-size: 11px;
}

[data-module="lighting-budget"] .lb-cell-warn-empty {
  border-left: 2px solid var(--warning);
}

/*
   Catalog-driven cells (mfr / part). Three modes set by render.js
   `catalogCellMode`:
     linked  -- read-only display, click opens picker.
     cta     -- empty + unlinked. Mfr cell hosts a primary picker
                button, part cell hosts a small manual-fallback link.
     manual  -- inline edit (falls through to .lb-cell-edit above).
*/
[data-module="lighting-budget"] .lb-cell-catalog-linked {
  cursor: pointer;
  border-radius: 3px;
  border-left: 2px solid var(--accent-line, var(--accent));
}

[data-module="lighting-budget"] .lb-cell-catalog-linked:hover {
  background: var(--panel-2);
  outline: 1px solid var(--accent-line, var(--border));
}

[data-module="lighting-budget"] .lb-cell-catalog-cta {
  padding: 4px 6px;
}

[data-module="lighting-budget"] .lb-catalog-cta-btn {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 6px 10px;
  background: var(--accent-soft, var(--panel-2));
  color: var(--accent);
  border: 1px dashed var(--accent-line, var(--accent));
  border-radius: 4px;
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}

[data-module="lighting-budget"] .lb-catalog-cta-btn:hover {
  background: var(--accent);
  color: var(--bg);
  border-style: solid;
}

[data-module="lighting-budget"] .lb-cell-catalog-fallback {
  text-align: left;
  padding: 4px 6px;
}

[data-module="lighting-budget"] .lb-catalog-fallback-btn {
  background: transparent;
  color: var(--text-tertiary);
  border: none;
  padding: 2px 4px;
  font: inherit;
  font-size: 11px;
  font-style: italic;
  cursor: pointer;
  text-decoration: underline dotted;
  text-underline-offset: 2px;
}

[data-module="lighting-budget"] .lb-catalog-fallback-btn:hover {
  color: var(--text-secondary);
  text-decoration-style: solid;
}

/* ── Column-group toggles ───────────────────────────────────────────── */
[data-module="lighting-budget"] .lb-col-toggle-group {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding-right: 4px;
  border-right: 1px solid var(--border);
  margin-right: 4px;
}

[data-module="lighting-budget"] .lb-col-toggle-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-tertiary);
}

[data-module="lighting-budget"] .lb-col-toggle {
  font-size: 11px;
  padding: 3px 8px;
  height: auto;
  color: var(--text-tertiary);
}

[data-module="lighting-budget"] .lb-col-toggle.lb-col-toggle-on {
  background: var(--accent-soft, var(--panel-2));
  color: var(--accent);
  border-color: var(--accent);
}

[data-module="lighting-budget"] .lb-tree-indent {
  display: inline-block;
  width: 16px;
}

[data-module="lighting-budget"] .lb-chevron {
  display: inline-block;
  width: 14px;
  padding: 0;
  text-align: center;
  color: var(--text-tertiary);
  user-select: none;
  cursor: pointer;
  background: none;
  border: none;
  font: inherit;
}

[data-module="lighting-budget"] .lb-chevron:hover {
  color: var(--text-primary);
}

[data-module="lighting-budget"] .lb-chevron-spacer {
  display: inline-block;
  width: 14px;
}

[data-module="lighting-budget"] .lb-tag {
  display: inline-block;
  padding: 1px 6px;
  margin-left: 6px;
  border-radius: 3px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: var(--panel-2);
  color: var(--text-tertiary);
  border: 1px solid var(--border);
}

[data-module="lighting-budget"] .lb-tag-channel {
  background: var(--accent-soft, var(--panel-2));
  color: var(--accent);
  border-color: var(--accent);
  cursor: pointer;
  font-family: inherit;
}

[data-module="lighting-budget"] button.lb-tag-channel:hover {
  background: var(--accent);
  color: var(--bg);
}

/* ── Fixture-spec popover ────────────────────────────────────────────── */
.lb-pop-spec-body {
  display: flex !important;
  flex-direction: column;
  gap: 4px;
}

.lb-pop-spec-body .lb-spec-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 4px 0;
  border-bottom: 1px solid var(--border);
  font-size: 12px;
}

.lb-pop-spec-body .lb-spec-row:last-child {
  border-bottom: none;
}

.lb-pop-spec-body .lb-spec-label {
  color: var(--text-secondary);
  flex-shrink: 0;
}

.lb-pop-spec-body .lb-spec-val {
  color: var(--text-primary);
  font-weight: 600;
  text-align: right;
  word-break: break-word;
}

.lb-pop-spec-body .lb-spec-val.lb-mono {
  font-family: monospace;
  font-size: 11px;
  font-weight: 500;
}

[data-module="lighting-budget"] .lb-sidebar {
  border-left: 1px solid var(--border);
  background: var(--panel);
  padding: 16px;
  overflow: auto;
}

[data-module="lighting-budget"] .lb-sidebar h3 {
  margin: 0 0 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

[data-module="lighting-budget"] .lb-sidebar-section {
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

[data-module="lighting-budget"] .lb-sidebar-section:last-child {
  border-bottom: none;
}

[data-module="lighting-budget"] .lb-metric {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 4px 0;
  font-size: 13px;
}

[data-module="lighting-budget"] .lb-metric-label {
  color: var(--text-secondary);
}

[data-module="lighting-budget"] .lb-metric-value {
  color: var(--text-primary);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

[data-module="lighting-budget"] .lb-stale {
  color: var(--warning);
  font-size: 11px;
  margin-left: 4px;
}

[data-module="lighting-budget"] .lb-empty {
  padding: 60px 24px;
  text-align: center;
  color: var(--text-secondary);
}

[data-module="lighting-budget"] .lb-empty h3 {
  margin: 0 0 8px;
  color: var(--text-primary);
}

[data-module="lighting-budget"] .lb-empty-actions {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
  justify-content: center;
}

[data-module="lighting-budget"] .lb-metric-large {
  font-size: 18px;
}

[data-module="lighting-budget"] .lb-faded {
  color: var(--text-tertiary);
  font-weight: normal;
}

[data-module="lighting-budget"] .lb-phase-active .lb-metric-label {
  color: var(--accent);
  font-weight: 600;
}

[data-module="lighting-budget"] .lb-most-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

[data-module="lighting-budget"] .lb-most-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  background: none;
  border: 1px solid transparent;
  color: var(--text-primary);
  text-align: left;
  padding: 4px 6px;
  border-radius: 3px;
  cursor: pointer;
  font: inherit;
  width: 100%;
}

[data-module="lighting-budget"] .lb-most-row:hover {
  border-color: var(--border);
  background: var(--panel-2);
}

[data-module="lighting-budget"] .lb-most-label {
  flex: 1;
  font-size: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

[data-module="lighting-budget"] .lb-most-value {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  font-size: 12px;
}

[data-module="lighting-budget"] .lb-cat-row {
  margin-bottom: 8px;
}

[data-module="lighting-budget"] .lb-cat-row-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 12px;
  margin-bottom: 4px;
  text-transform: capitalize;
}

[data-module="lighting-budget"] .lb-cat-bar {
  height: 6px;
  background: var(--panel-2);
  border-radius: 3px;
  overflow: hidden;
}

[data-module="lighting-budget"] .lb-cat-bar-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
}

[data-module="lighting-budget"] .lb-mono {
  font-family: monospace;
  font-size: 11px;
}

/* Modal form scaffolding -- thin layer on top of platform .strata-form-grid
 * + .strata-input. Modals render on document.body, NOT inside the module
 * container, so these rules also live globally (no [data-module] scope). */
.lb-modal-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 480px;
  max-width: 640px;
}

.lb-modal-form .form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.lb-modal-form .form-group label,
.lb-modal-form > label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
}

.lb-modal-form .lb-form-help {
  font-size: 12px;
  color: var(--text-tertiary);
  margin: 0;
}

.lb-modal-form .lb-form-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--panel-2);
}

.lb-modal-form .lb-form-section-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin: 0;
}

.lb-modal-form .lb-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.lb-modal-form .lb-form-row-thirds {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 14px;
}

.lb-modal-form .lb-computed {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 8px 10px;
  background: var(--panel);
  border: 1px dashed var(--border);
  border-radius: 4px;
  font-size: 13px;
}

.lb-modal-form .lb-computed-value {
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--text-primary);
}

.lb-modal-form .lb-formula {
  font-family: monospace;
  font-size: 11px;
  color: var(--text-tertiary);
}

.lb-modal-form textarea.strata-input {
  font-family: inherit;
  resize: vertical;
  min-height: 60px;
}

.lb-modal-form .lb-link-btn {
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  font-size: 12px;
  padding: 0;
  text-decoration: underline;
  align-self: flex-start;
}

@media (max-width: 640px) {
  .lb-modal-form {
    min-width: 280px;
  }
  .lb-modal-form .lb-form-row,
  .lb-modal-form .lb-form-row-thirds {
    grid-template-columns: 1fr;
  }
}

[data-module="lighting-budget"] .lb-cost-stack {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px dashed var(--border);
}

[data-module="lighting-budget"] .lb-metric-emphasis {
  border-top: 1px solid var(--border);
  padding-top: 4px;
  margin-top: 4px;
  font-size: 14px;
}

[data-module="lighting-budget"] .lb-metric-emphasis .lb-metric-value {
  font-size: 14px;
}

[data-module="lighting-budget"] .lb-metric-faint {
  color: var(--text-tertiary);
  font-size: 11px;
}

[data-module="lighting-budget"] .lb-metric-warn {
  color: var(--warning);
}

[data-module="lighting-budget"] .lb-details-btn {
  margin-top: 12px;
  width: 100%;
}

[data-module="lighting-budget"] .lb-identity-warn {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  background: var(--panel-2);
  border: 1px dashed var(--warning);
  color: var(--text-primary);
  padding: 6px 8px;
  border-radius: 4px;
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  margin: 4px 0;
  text-align: left;
}

[data-module="lighting-budget"] .lb-identity-warn:hover {
  background: var(--row-hover);
  border-color: var(--accent);
}

[data-module="lighting-budget"] .lb-cell-delta {
  text-align: right;
  font-variant-numeric: tabular-nums;
  font-size: 12px;
}

[data-module="lighting-budget"] .lb-delta-up {
  color: var(--warning);
  font-weight: 600;
}

[data-module="lighting-budget"] .lb-delta-down {
  color: var(--success, var(--accent));
  font-weight: 600;
}

[data-module="lighting-budget"] .lb-delta-zero,
[data-module="lighting-budget"] .lb-delta-new {
  color: var(--text-tertiary);
  font-style: italic;
}

[data-module="lighting-budget"] .lb-row-actions {
  display: flex;
  gap: 4px;
  opacity: 0;
}

[data-module="lighting-budget"] .lb-tree tr.lb-row:hover .lb-row-actions {
  opacity: 1;
}

[data-module="lighting-budget"] .lb-icon-btn {
  background: none;
  border: 1px solid transparent;
  color: var(--text-tertiary);
  padding: 2px 6px;
  border-radius: 3px;
  cursor: pointer;
  font-size: 11px;
}

[data-module="lighting-budget"] .lb-icon-btn:hover {
  border-color: var(--border);
  color: var(--text-primary);
}

[data-module="lighting-budget"] .btn-ghost {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 12px;
}

[data-module="lighting-budget"] .btn-ghost:hover {
  background: var(--panel-2);
}

@media (max-width: 640px) {
  [data-module="lighting-budget"] .lb-toolbar {
    padding: 8px 12px;
  }
  [data-module="lighting-budget"] .lb-pop-md,
  [data-module="lighting-budget"] .lb-pop-lg {
    width: calc(100vw - 24px);
  }
}

/* ===================================================================
   Scenario mode (lighting-budget-scenarios-plan.md sections 5.1, 5.2).
   All colors are tokens so both themes resolve; verify dark + light.
   =================================================================== */

[data-module="lighting-budget"] .lb-scenario-select {
  font-size: 12px;
  padding: 3px 6px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: var(--panel-2, var(--panel));
  color: var(--text-primary);
  font-family: inherit;
}

[data-module="lighting-budget"] .lb-vs-target-over { color: var(--danger, var(--warning)); }
[data-module="lighting-budget"] .lb-vs-target-under { color: var(--success, var(--accent)); }

/* Per-spec alternates chip (mirrors the catalog badge geometry). */
[data-module="lighting-budget"] .lb-alt-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 1px 6px;
  margin-left: 6px;
  border-radius: 3px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  border: 1px solid var(--accent-line, var(--border));
  background: transparent;
  color: var(--text-secondary);
  white-space: nowrap;
  font-family: inherit;
}
[data-module="lighting-budget"] .lb-alt-chip:hover {
  border-color: var(--accent);
  color: var(--accent);
}
[data-module="lighting-budget"] .lb-alt-chip-active {
  background: var(--accent-soft, var(--panel-2));
  color: var(--accent);
  border-color: var(--accent);
}
[data-module="lighting-budget"] .lb-alt-chip-cue {
  border-color: var(--warning);
  color: var(--warning);
}
[data-module="lighting-budget"] .lb-stale-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--warning);
}

/* Scenario management popover rows. */
[data-module="lighting-budget"] .lb-pop-rule {
  border: none;
  border-top: 1px solid var(--border);
  margin: 12px 0;
}
[data-module="lighting-budget"] .lb-pop-subtitle {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  margin-bottom: 6px;
}
[data-module="lighting-budget"] .lb-scn-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 260px;
  overflow-y: auto;
}
[data-module="lighting-budget"] .lb-scn-row {
  display: flex;
  align-items: center;
  gap: 6px;
}
[data-module="lighting-budget"] .lb-scn-row .lb-scn-name { flex: 1 1 auto; min-width: 0; }
[data-module="lighting-budget"] .lb-scn-row .lb-scn-status { flex: 0 0 auto; }

/* Alternates popover option list. */
[data-module="lighting-budget"] .lb-alt-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 280px;
  overflow-y: auto;
}
[data-module="lighting-budget"] .lb-alt-opt {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 6px 8px;
  border-radius: 4px;
  border: 1px solid var(--border);
  cursor: pointer;
}
[data-module="lighting-budget"] .lb-alt-opt:hover { background: var(--row-hover, var(--panel-2)); }
[data-module="lighting-budget"] .lb-alt-opt-main {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1 1 auto;
  min-width: 0;
}
[data-module="lighting-budget"] .lb-alt-price {
  font-variant-numeric: tabular-nums;
  color: var(--text-primary);
  font-weight: 600;
}
[data-module="lighting-budget"] .lb-alt-note {
  font-size: 11px;
  color: var(--text-secondary);
}
[data-module="lighting-budget"] .lb-alt-cue {
  font-size: 11px;
  color: var(--warning);
}
[data-module="lighting-budget"] .lb-alt-del {
  flex: 0 0 auto;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  padding: 2px 4px;
}
[data-module="lighting-budget"] .lb-alt-del:hover { color: var(--danger, var(--warning)); }

/* Quality-tier pills. */
[data-module="lighting-budget"] .lb-tier {
  display: inline-block;
  padding: 0 5px;
  border-radius: 3px;
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border: 1px solid var(--border);
  color: var(--text-secondary);
}
[data-module="lighting-budget"] .lb-tier-upgrade {
  color: var(--success, var(--accent));
  border-color: var(--success, var(--accent));
}
[data-module="lighting-budget"] .lb-tier-downgrade {
  color: var(--warning);
  border-color: var(--warning);
}

/* ===================================================================
   Scenario x category matrix subview (plan 5.4). DRAFT -- unverified.
   Sticky category column + sticky header row; horizontal scroll for
   many scenarios. All colors are tokens; verify dark + light.
   Sticky cells use a SOLID token background (not a translucent row
   tint) so columns scrolling underneath do not bleed through
   (module-preflight: frozen-cell background trap).
   =================================================================== */

[data-module="lighting-budget"] .lb-matrix-root {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 56px);
  background: var(--bg);
}

[data-module="lighting-budget"] .lb-matrix-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  flex-wrap: wrap;
}

[data-module="lighting-budget"] .lb-matrix-bar h2 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

[data-module="lighting-budget"] .lb-matrix-hint {
  font-size: 12px;
  color: var(--text-tertiary);
}

[data-module="lighting-budget"] .lb-matrix-loading,
[data-module="lighting-budget"] .lb-matrix-empty {
  padding: 32px 16px;
  color: var(--text-secondary);
  font-size: 13px;
  text-align: center;
}

[data-module="lighting-budget"] .lb-matrix-wrap {
  flex: 1;
  overflow: auto;
  min-height: 0;
  background: var(--bg);
}

[data-module="lighting-budget"] .lb-matrix {
  border-collapse: separate;
  border-spacing: 0;
  font-size: 13px;
  color: var(--text-primary);
  /* min-width lets the table overflow horizontally with many columns
     rather than crushing cells. */
  min-width: 100%;
}

[data-module="lighting-budget"] .lb-matrix th,
[data-module="lighting-budget"] .lb-matrix td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--border);
  text-align: right;
  white-space: nowrap;
  box-sizing: border-box;
}

/* Column headers: sticky to the top during vertical scroll. */
[data-module="lighting-budget"] .lb-matrix thead th {
  position: sticky;
  top: 0;
  z-index: 4;
  background: var(--panel);
  vertical-align: bottom;
  font-weight: 600;
  text-align: center;
}

/* Category column: sticky to the left during horizontal scroll.
   Solid panel base so scrolled columns don't bleed through. */
[data-module="lighting-budget"] .lb-matrix .lb-matrix-cat,
[data-module="lighting-budget"] .lb-matrix .lb-matrix-cat-h {
  position: sticky;
  left: 0;
  z-index: 3;
  text-align: left;
  background: var(--panel);
  font-weight: 500;
  min-width: 150px;
}

/* Top-left corner: sticky on BOTH axes, must sit above each. */
[data-module="lighting-budget"] .lb-matrix .lb-matrix-cat-h {
  z-index: 6;
}

[data-module="lighting-budget"] .lb-matrix .lb-matrix-cell {
  min-width: 110px;
}

[data-module="lighting-budget"] .lb-matrix-amt {
  display: block;
  font-variant-numeric: tabular-nums;
}

[data-module="lighting-budget"] .lb-matrix-delta {
  display: block;
  font-size: 11px;
  margin-top: 2px;
  min-height: 14px;
}

[data-module="lighting-budget"] .lb-matrix-blank {
  color: var(--text-tertiary);
}

/* Headline totals row. */
[data-module="lighting-budget"] .lb-matrix-total-row td {
  font-weight: 600;
  border-bottom: 2px solid var(--border-strong);
  background: var(--panel-2);
}
[data-module="lighting-budget"] .lb-matrix-total-row .lb-matrix-cat {
  background: var(--panel-2);
}

/* Focused comparison-basis column highlight. Layer accent-soft over the
   solid base so the sticky category/total cells stay opaque. */
[data-module="lighting-budget"] .lb-matrix .lb-matrix-col-focus {
  background: linear-gradient(var(--accent-soft), var(--accent-soft)), var(--panel);
}
[data-module="lighting-budget"] .lb-matrix-total-row .lb-matrix-col-focus {
  background: linear-gradient(var(--accent-soft), var(--accent-soft)), var(--panel-2);
}

[data-module="lighting-budget"] .lb-matrix-focus-lbl {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

[data-module="lighting-budget"] .lb-matrix-status {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-tertiary);
}

[data-module="lighting-budget"] .lb-matrix-target-input {
  width: 90px;
  padding: 3px 6px;
  font-size: 12px;
  text-align: right;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--panel-2, var(--panel));
  color: var(--text-primary);
  font-family: inherit;
}

@media (max-width: 640px) {
  [data-module="lighting-budget"] .lb-matrix-target-input {
    font-size: 16px;  /* prevent iOS zoom */
    width: 80px;
  }
}

/* Assembly (multi-catalog) breakdown in the selected-line detail
 * (docs/fixture-type-multi-catalog-plan.md Phase 3). */
[data-module="lighting-budget"] .lb-assembly {
  margin: 8px 0; padding: 8px 10px; border: 1px solid var(--border);
  border-radius: 8px; background: var(--panel-2);
}
[data-module="lighting-budget"] .lb-assembly-head {
  text-transform: uppercase; letter-spacing: 0.6px; font-size: 10px; margin-bottom: 6px;
}
[data-module="lighting-budget"] .lb-metric-strong {
  border-top: 1px solid var(--border); margin-top: 4px; padding-top: 6px;
}
[data-module="lighting-budget"] .lb-metric-strong .lb-metric-value { font-weight: 700; }
[data-module="lighting-budget"] .lb-assembly-hint {
  margin-top: 6px; font-size: 10.5px; color: var(--warning); line-height: 1.3;
}