/* Design-System "Petrol · Volt · Kupfer" v2.1 (H:\design-system-econsult.md),
   projektübergreifendes Update für die Econsult-Familie (siehe elt-planung-suite).
   Bootstrap bleibt Basis für Formulare/Tabellen/Modals; wir tönen die
   vorhandenen Bootstrap-Komponenten über deren eigene --bs-btn-*-Variablen
   um (globals.css lädt nach bootstrap.min.css, gleiche Spezifität gewinnt
   per Ladereihenfolge) statt Bootstrap zu ersetzen. */
:root {
  --color-primary: #1c3f52; /* Petrol */
  --color-primary-dark: #0f2733; /* Petrol Dark */
  --color-primary-deep: #0a1920; /* Petrol Deep */
  --color-accent: #4e7e93; /* Petrol Light */
  --color-accent-pale: #9dbac9; /* Petrol Pale */
  --color-signal: #3fa66b; /* Volt - generelle aktiv/positiv-Farbe */
  --color-signal-dark: #237a47;
  --color-attention: #c97a3b; /* Kupfer - bewusst selten, "braucht Aufmerksamkeit" */
  --color-attention-dark: #9c5a26;
  --color-ink: #182229; /* Graphite */
  --color-ink-soft: #59666d; /* Slate */
  --color-bg: #ffffff;
  --color-surface: #f1f2ee; /* Fog */
  --color-border: #dee2dc;
  --color-danger: #b04035;
  --color-danger-bg: #f7e6e3;
  --color-warn: #a9791e;

  --font-head: system-ui, "Segoe UI", "Helvetica Neue", sans-serif;
  --font-body: system-ui, "Segoe UI", "Helvetica Neue", sans-serif;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;

  --radius: 12px;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-surface);
  color: var(--color-ink);
}

a {
  color: var(--color-primary);
}

/* ── Bootstrap-Einfärbung auf Petrol/Volt/Kupfer ────────────────────────── */

.btn-primary {
  --bs-btn-bg: var(--color-primary);
  --bs-btn-border-color: var(--color-primary);
  --bs-btn-hover-bg: var(--color-primary-dark);
  --bs-btn-hover-border-color: var(--color-primary-dark);
  --bs-btn-active-bg: var(--color-primary-deep);
  --bs-btn-active-border-color: var(--color-primary-deep);
  --bs-btn-disabled-bg: var(--color-primary);
  --bs-btn-disabled-border-color: var(--color-primary);
}

.btn-outline-primary {
  --bs-btn-color: var(--color-primary);
  --bs-btn-border-color: var(--color-primary);
  --bs-btn-hover-bg: var(--color-primary);
  --bs-btn-hover-border-color: var(--color-primary);
  --bs-btn-active-bg: var(--color-primary-dark);
  --bs-btn-active-border-color: var(--color-primary-dark);
}

.btn-success,
.btn-outline-success {
  --bs-btn-bg: var(--color-signal);
  --bs-btn-border-color: var(--color-signal);
  --bs-btn-color: #fff;
  --bs-btn-hover-bg: var(--color-signal-dark);
  --bs-btn-hover-border-color: var(--color-signal-dark);
  --bs-btn-active-bg: var(--color-signal-dark);
  --bs-btn-active-border-color: var(--color-signal-dark);
}

.btn-outline-success {
  --bs-btn-bg: transparent;
  --bs-btn-color: var(--color-signal-dark);
  --bs-btn-hover-color: #fff;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 0.25rem rgba(28, 63, 82, 0.15);
}

.form-check-input:checked {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

.text-bg-secondary {
  background-color: var(--color-surface) !important;
  color: var(--color-ink-soft) !important;
}

.alert-success {
  --bs-alert-color: var(--color-signal-dark);
  --bs-alert-bg: #eaf6f0;
  --bs-alert-border-color: #b6e2ce;
}

/* ── App-Shell / Seitenleiste (nur auf der Projektseite) ────────────────── */

.app-shell {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: linear-gradient(
    160deg,
    var(--color-primary-deep) 0%,
    var(--color-primary-dark) 45%,
    var(--color-primary) 100%
  );
  color: #fff;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar-brand {
  padding: 22px 22px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.sidebar-wordmark {
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
}

.sidebar-bar {
  height: 3px;
  background: linear-gradient(90deg, var(--color-signal), var(--color-attention));
  margin-top: 9px;
  width: 42px;
  border-radius: 2px;
}

.sidebar-tag {
  font-size: 0.72rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--color-accent-pale);
  margin-top: 10px;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px;
}

.sidebar-section-label {
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(199, 214, 224, 0.7);
  padding: 16px 14px 4px;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 8px;
  color: #c7d6e0;
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  border: 0;
  background: transparent;
  width: 100%;
  text-align: left;
  cursor: pointer;
}

.sidebar-link:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  text-decoration: none;
}

.sidebar-link.active {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  box-shadow: inset 3px 0 0 var(--color-signal);
}

.sidebar-icon {
  width: 1.1em;
  display: inline-flex;
  justify-content: center;
}

.app-shell-content {
  width: 100%;
  min-width: 0;
}

.page-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.page-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

.kicker {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 2px;
  font-weight: 600;
}

/* ── KPI-Kacheln ─────────────────────────────────────────────────────── */

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.kpi {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 9px;
  padding: 13px 15px;
  display: block;
  color: inherit;
  text-decoration: none;
  transition: box-shadow 0.15s, transform 0.15s;
}

a.kpi:hover {
  color: inherit;
  text-decoration: none;
  box-shadow: 0 3px 8px rgba(15, 39, 51, 0.07), 0 16px 32px -14px rgba(15, 39, 51, 0.28);
  transform: translateY(-1px);
}

.kpi-label {
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-ink-soft);
  margin-bottom: var(--space-xs);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.kpi-value {
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-primary);
}

.card {
  border-radius: var(--radius);
  border-top: 3px solid var(--color-primary);
  box-shadow:
    0 1px 2px rgba(15, 39, 51, 0.05),
    0 10px 24px -14px rgba(15, 39, 51, 0.22);
}

.card-header {
  font-weight: 700;
  color: var(--color-primary);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.table td input.form-control-sm,
.table td select.form-select-sm {
  min-width: 8rem;
}

.tree-editor-shell {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  min-width: 0;
}

.editor-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  position: sticky;
  top: 0;
  z-index: 12;
  padding: 0.35rem 0;
  background: #fff;
  box-shadow: 0 1px 0 rgba(196, 205, 220, 0.8);
}

.editor-toolbar button {
  border: 1px solid #c4cddc;
  background: #fff;
  padding: 0.28rem 0.6rem;
  border-radius: 4px;
  font-size: 0.82rem;
}

.editor-toolbar button:disabled {
  opacity: 0.45;
}

.editor-toolbar .project-device-drawer-toggle {
  border-color: #2563eb;
  background: #2563eb;
  color: #fff;
  font-weight: 600;
}

.active-view-summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.5rem;
  border: 1px solid #bfdbfe;
  border-radius: 5px;
  background: #eff6ff;
  color: #1e3a5f;
  font-size: 0.78rem;
}

.active-view-label {
  font-weight: 600;
}

.active-view-chip,
.active-view-reset {
  border: 1px solid #93b4df;
  border-radius: 999px;
  background: #fff;
  color: #1e3a5f;
  padding: 0.18rem 0.48rem;
  font-size: 0.76rem;
  cursor: pointer;
}

.active-view-chip:hover,
.active-view-reset:hover {
  border-color: #2563eb;
}

.active-view-reset {
  margin-left: auto;
  font-weight: 600;
}

.distribution-power-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(12rem, 1fr));
  gap: 0.5rem;
  padding: 0.55rem;
  border: 1px solid #cbd5e1;
  border-radius: 5px;
  background: #f8fafc;
}

.distribution-power-summary > div {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.distribution-power-summary span {
  color: #475569;
  font-size: 0.74rem;
  line-height: 1.2;
}

.distribution-power-summary strong {
  color: #172033;
  font-size: 0.95rem;
}

@media (max-width: 900px) {
  .distribution-power-summary {
    grid-template-columns: 1fr;
  }
}

.column-settings-menu {
  position: absolute;
  z-index: 9;
  margin-top: 2rem;
  border: 1px solid #cfd7e5;
  background: #fff;
  border-radius: 5px;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
  padding: 0.55rem;
  width: 340px;
  color: #1f2937;
  text-align: left;
}

.column-settings-title-row,
.column-settings-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.4rem;
}

.column-settings-title-row {
  margin-bottom: 0.25rem;
  font-size: 0.82rem;
}

.column-settings-close {
  border: 0 !important;
  background: transparent !important;
  color: #4b5563;
  padding: 0.05rem 0.2rem !important;
  font-size: 1rem !important;
  line-height: 1;
  cursor: pointer;
}

.column-settings-explanation {
  margin-bottom: 0.4rem;
  color: #4b5563;
  font-size: 0.72rem;
  line-height: 1.3;
}

.column-settings-search {
  width: 100%;
  margin-bottom: 0.4rem;
  border: 1px solid #c4cddc;
  border-radius: 4px;
  padding: 0.3rem 0.4rem;
  font-size: 0.76rem;
}

.column-settings-list {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  max-height: 300px;
  overflow: auto;
  border: 1px solid #e1e6ef;
  border-radius: 4px;
  padding: 0.25rem;
}

.column-settings-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.4rem;
  border: 1px solid transparent;
  border-radius: 4px;
  padding: 0.1rem;
}

.column-settings-item.selected {
  border-color: #bfdbfe;
  background: #eff6ff;
}

.column-settings-item.dragging {
  opacity: 0.55;
}

.column-settings-item.drop-target {
  border-color: #2b6cb0;
  background: #ebf4ff;
}

.column-settings-item.locked {
  background: #f7fafc;
}

.column-visibility-button {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex: 1;
  min-width: 0;
  border: 0 !important;
  background: transparent !important;
  padding: 0.2rem 0.25rem !important;
  color: inherit;
  text-align: left;
  font-size: 0.8rem;
  cursor: pointer;
}

.column-visibility-button:disabled {
  cursor: default;
}

.selection-marker {
  display: inline-flex;
  flex: 0 0 1rem;
  align-items: center;
  justify-content: center;
  color: #1d4ed8;
  font-weight: 700;
}

.column-settings-order {
  display: flex;
  gap: 0.2rem;
}

.column-settings-order button {
  border: 1px solid #c4cddc;
  background: #fff;
  border-radius: 3px;
  font-size: 0.72rem;
  padding: 0.08rem 0.28rem;
}

.tree-grid-wrap {
  overflow: auto;
  border: 1px solid #d9dee8;
  background: #fff;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  max-height: max(28rem, calc(100vh - 12rem));
  scrollbar-gutter: stable;
}

.column-settings-empty {
  padding: 0.55rem 0.35rem;
  color: #6b7280;
  font-size: 0.76rem;
}

.column-settings-footer {
  justify-content: flex-end;
  margin-top: 0.45rem;
}

.column-settings-footer button.primary {
  border-color: #2563eb;
  background: #2563eb;
  color: #fff;
}

.tree-editor-layout {
  display: block;
  min-height: 560px;
  min-width: 0;
  position: relative;
}

.project-device-sidebar {
  border: 1px solid #d9dee8;
  background: #fff;
  padding: 0.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.project-device-sidebar h3 {
  margin: 0;
  font-size: 1rem;
}

.project-device-sidebar input,
.project-device-sidebar select {
  width: 100%;
  border: 1px solid #cfd7e5;
  border-radius: 4px;
  padding: 0.25rem 0.35rem;
}

.project-device-list {
  max-height: 360px;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.project-device-item {
  border: 1px solid #d5ddec;
  background: #f8faff;
  text-align: left;
  padding: 0.4rem;
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  font-size: 0.8rem;
}

.project-device-item.selected {
  border-color: #4c7dd9;
  background: #edf3ff;
}

.project-device-item.dragging {
  opacity: 0.55;
  border-style: dashed;
}

.sidebar-actions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.sidebar-actions label {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.82rem;
}

.sidebar-actions button {
  border: 1px solid #c4cddc;
  background: #fff;
  border-radius: 4px;
  padding: 0.3rem 0.45rem;
  font-size: 0.82rem;
}

.tree-grid {
  width: max-content;
  min-width: 0;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.tree-grid th,
.tree-grid td {
  border: 1px solid #e4e9f2;
  padding: 0.35rem 0.4rem;
  vertical-align: middle;
}

.tree-grid th {
  width: 1px;
  background: #f4f7fb;
  position: sticky;
  top: 0;
  z-index: 2;
  vertical-align: top;
  white-space: normal;
}

.tree-grid td {
  white-space: nowrap;
}

.tree-grid .header-cell {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.2rem;
  min-width: 0;
}

.tree-grid .header-filter-btn {
  display: block;
  width: 100%;
  border: 1px solid #c4cddc;
  background: #fff;
  border-radius: 3px;
  font-size: 0.75rem;
  padding: 0.15rem 0.35rem;
  white-space: nowrap;
}

.tree-grid .header-sort-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.25rem;
  width: 100%;
  min-width: 0;
  border: 0;
  background: transparent;
  padding: 0;
  color: #1f2937;
  font: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  line-height: 1.15;
  overflow-wrap: anywhere;
  white-space: normal;
  text-align: left;
  cursor: pointer;
}

.project-device-drawer {
  position: fixed;
  z-index: 1040;
  top: 5.5rem;
  right: 1rem;
  left: auto;
  width: min(360px, calc(100vw - 2rem));
  max-height: calc(100vh - 7rem);
  overflow: auto;
  border-radius: 0.5rem;
  box-shadow: 0 0.75rem 2rem rgba(31, 41, 55, 0.22);
}

.project-device-drawer-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
}

.project-device-drawer-header span {
  color: #6b7280;
  font-size: 0.75rem;
}

.project-device-drawer-header button {
  border: 1px solid #c4cddc;
  background: #fff;
  border-radius: 4px;
  padding: 0.25rem 0.4rem;
  font-size: 0.78rem;
}

.tree-grid .header-sort-btn:hover span:first-child,
.tree-grid .header-sort-btn:focus-visible span:first-child {
  text-decoration: underline;
}

.tree-grid .sort-indicator {
  color: #2563eb;
  font-size: 0.85rem;
}

.tree-grid .header-filter-btn.active {
  border-color: #2563eb;
  color: #2563eb;
  background: #eff6ff;
}

.tree-grid .header-filter-menu {
  position: absolute;
  z-index: 7;
  margin-top: 0.2rem;
  border: 1px solid #cfd7e5;
  background: #fff;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
  width: 300px;
  padding: 0.55rem;
  text-align: left;
}

.tree-grid .header-filter-title-row,
.tree-grid .header-filter-selection-actions,
.tree-grid .header-filter-footer,
.tree-grid .header-filter-footer-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.4rem;
}

.tree-grid .header-filter-title-row {
  margin-bottom: 0.25rem;
  font-size: 0.82rem;
}

.tree-grid .header-filter-close {
  border: 0;
  background: transparent;
  color: #4b5563;
  padding: 0.05rem 0.2rem;
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
}

.tree-grid .header-filter-selection-actions {
  justify-content: flex-start;
  margin: 0.4rem 0 0.3rem;
  font-size: 0.72rem;
}

.tree-grid .header-filter-selection-actions span {
  margin-left: auto;
  color: #4b5563;
}

.tree-grid .header-filter-selection-actions button,
.tree-grid .header-filter-footer button {
  border: 1px solid #c4cddc;
  background: #fff;
  border-radius: 3px;
  padding: 0.18rem 0.35rem;
  font-size: 0.72rem;
  cursor: pointer;
}

.tree-grid .header-filter-explanation {
  margin-bottom: 0.4rem;
  color: #4b5563;
  font-size: 0.72rem;
  line-height: 1.3;
  white-space: normal;
}

.tree-grid .header-filter-search {
  width: 100%;
  border: 1px solid #c4cddc;
  border-radius: 4px;
  padding: 0.3rem 0.4rem;
  font-size: 0.76rem;
}

.tree-grid .header-filter-values {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  max-height: 210px;
  overflow: auto;
  border: 1px solid #e1e6ef;
  border-radius: 4px;
  padding: 0.25rem;
}

.tree-grid .header-filter-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  width: 100%;
  border: 1px solid transparent;
  border-radius: 3px;
  background: transparent;
  padding: 0.25rem 0.3rem;
  color: #1f2937;
  font-weight: 400;
  font-size: 0.75rem;
  text-align: left;
  cursor: pointer;
}

.tree-grid .header-filter-item:hover {
  background: #f3f4f6;
}

.tree-grid .header-filter-item.selected {
  border-color: #bfdbfe;
  background: #eff6ff;
}

.tree-grid .header-filter-empty {
  padding: 0.45rem 0.25rem;
  color: #6b7280;
  font-size: 0.74rem;
}

.tree-grid .header-filter-footer {
  margin-top: 0.45rem;
}

.tree-grid .header-filter-footer-actions {
  margin-left: auto;
}

.tree-grid .header-filter-footer button.primary {
  border-color: #2563eb;
  background: #2563eb;
  color: #fff;
}

.tree-grid .header-filter-footer button:disabled {
  opacity: 0.45;
  cursor: default;
}

.tree-grid .header-filter-warning {
  color: #9a3412;
  font-size: 0.7rem;
  white-space: normal;
}

.tree-grid .num {
  text-align: right;
}

.tree-grid .section-row td {
  background: #e8eef8;
  font-weight: 600;
}

.tree-grid .structure-component-row td {
  padding: 0.38rem 0.6rem;
  border-bottom-color: #d8dee9;
}

.tree-grid .structure-component-row.headerComponent td {
  background: #e2e8f0;
}

.tree-grid .structure-component-row.groupComponent td {
  background: #f8fafc;
}

.tree-grid .structure-component-row.footerComponent td {
  background: #f1f5f9;
}

.tree-grid .structure-component-content {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  min-width: 0;
}

.tree-grid .structure-component-content strong {
  flex: 0 0 auto;
  font-variant-numeric: tabular-nums;
}

.tree-grid .structure-component-protection {
  color: #475569;
  font-size: 0.78rem;
}

.tree-grid .structure-component-actions {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-left: auto;
}

.tree-grid .structure-component-actions button {
  font-size: 0.75rem;
  padding: 0.18rem 0.45rem;
}

.tree-grid .structure-component-fixed {
  color: #64748b;
  font-size: 0.75rem;
}

.tree-grid .section-drop-cell {
  padding: 0.45rem 0.6rem;
}

.tree-grid .section-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.tree-grid .section-actions {
  display: flex;
  gap: 0.35rem;
}

.tree-grid .section-actions button {
  border: 1px solid #c4cddc;
  background: #fff;
  padding: 0.2rem 0.45rem;
  border-radius: 3px;
  font-size: 0.78rem;
}

.tree-grid .summary-row td {
  background: #f3f7fd;
}

.tree-grid .device-row td:first-child {
  color: #6b7280;
}

.tree-grid .empty-circuit-row td {
  background: #f8fbff;
}

.tree-grid tr.row-selected td {
  background: #eaf1ff;
}

.tree-grid .placeholder-row td {
  background: #f7f7f7;
  color: #6b7280;
  font-style: italic;
}

.tree-grid .cell-editable {
  cursor: text;
}

.tree-grid .cell-protection-trigger {
  color: var(--color-primary);
  cursor: pointer;
  font-weight: 600;
  transition:
    background-color 0.12s ease,
    box-shadow 0.12s ease;
}

.tree-grid .cell-protection-trigger:hover {
  background: #eaf6f0;
  box-shadow: inset 0 0 0 1px var(--color-signal);
}

.tree-grid .device-drag-handle {
  cursor: grab;
}

.tree-grid .device-drag-handle.device-dragging {
  opacity: 0.55;
}

.tree-grid .circuit-drag-handle {
  cursor: grab;
}

.tree-grid .circuit-dragging-block td {
  opacity: 0.55;
}

.tree-grid .cell-selected {
  outline: 2px solid #4c7dd9;
  outline-offset: -2px;
}

.tree-grid .section-title {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
}

.tree-grid .section-title span {
  color: #475569;
  font-size: 0.78rem;
  font-weight: 500;
}

.tree-grid .cell-invalid {
  outline: 2px solid #c2410c;
  outline-offset: -2px;
  background: #fff7ed !important;
}

.tree-grid .cell-invalid input {
  border-color: #c2410c;
}

.tree-grid input,
.tree-grid select {
  width: 100%;
  min-width: 5rem;
  border: 1px solid #9fb6e0;
  border-radius: 2px;
  padding: 0.2rem 0.3rem;
}

.tree-grid .action-cell {
  display: flex;
  gap: 0.3rem;
}

.tree-grid .action-cell button {
  border: 1px solid #c4cddc;
  background: #fff;
  padding: 0.2rem 0.45rem;
  border-radius: 3px;
  font-size: 0.78rem;
}

.tree-grid .drop-target-active {
  box-shadow: inset 0 0 0 2px #4c7dd9;
  background: #eef4ff !important;
}

.tree-grid .drop-target-invalid {
  box-shadow: inset 0 0 0 2px #d97706;
  background: #fff7ed !important;
}

.tree-grid .drop-target-confirm {
  box-shadow: inset 0 0 0 2px #d97706;
  background: #fffbeb !important;
}

.tree-grid tr.circuit-insert-before td,
.tree-grid tr.circuit-insert-after td {
  position: relative;
}

.tree-grid tr.circuit-insert-before td::before {
  content: "";
  position: absolute;
  left: -1px;
  right: -1px;
  top: -2px;
  border-top: 4px solid #2563eb;
  pointer-events: none;
}

.tree-grid tr.circuit-insert-before td:first-child::after {
  content: "";
  position: absolute;
  left: -7px;
  top: -7px;
  width: 0;
  height: 0;
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
  border-left: 10px solid #2563eb;
  pointer-events: none;
}

.tree-grid tr.circuit-insert-after td::after {
  content: "";
  position: absolute;
  left: -1px;
  right: -1px;
  bottom: -2px;
  border-bottom: 4px solid #2563eb;
  pointer-events: none;
}

.tree-grid tr.circuit-insert-after td:first-child::before {
  content: "";
  position: absolute;
  left: -7px;
  bottom: -7px;
  width: 0;
  height: 0;
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
  border-left: 10px solid #2563eb;
  pointer-events: none;
}

.drop-hint {
  font-size: 0.75rem;
  color: #1f4ea3;
  font-weight: 600;
}

.notice {
  padding: 0.5rem 0.75rem;
  border-radius: 4px;
  border: 1px solid transparent;
}

.notice.info {
  background: #ebf3ff;
  border-color: #bad1f7;
}

.notice.error {
  background: #fdecec;
  border-color: #f5b5b5;
}

.notice.warning {
  background: #fff7ed;
  border-color: #fdba74;
}

.editor-error-notice {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.notice.muted {
  background: #f6f6f6;
  border-color: #e4e4e4;
}

.todo-hint {
  color: #6b7280;
  font-size: 0.8rem;
  margin: 0;
}

@media (max-width: 720px) {
  .project-device-drawer {
    top: 4.5rem;
    max-height: calc(100vh - 5.5rem);
  }
}