:root {
  --bg: #e9edf1;
  --bg-strong: #dde4ea;
  --panel: #e1e6eb;
  --panel-strong: #f7f8fa;
  --workspace: #fbfcfd;
  --border: #c3ccd5;
  --border-strong: #82909d;
  --text: #1d252d;
  --muted: #64707b;
  --accent: #557894;
  --accent-dark: #355a73;
  --accent-soft: #d7e1e8;
  --success: #3b7a57;
  --hero-shadow: none;
  --panel-shadow: none;
  --control-gap: 9px;
  --site-width: 1680px;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  scroll-behavior: smooth;
}

#overview,
#planner,
#planner-controls,
#planner-canvas {
  scroll-margin-top: 72px;
}

body {
  margin: 0;
  color: var(--text);
  font-family: "Segoe UI", "Helvetica Neue", sans-serif;
  background: var(--bg);
}

button,
input,
select {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  background: rgba(233, 237, 241, 0.98);
  border-bottom: 1px solid var(--border);
}

.site-header-inner,
.app-intro-section,
.info-section,
.planner-section,
.site-footer {
  width: min(calc(100% - 24px), var(--site-width));
  margin: 0 auto;
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 46px;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.site-brand-mark {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 4px;
  background: var(--accent-dark);
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.site-brand-copy {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.site-brand-copy strong {
  font-size: 0.94rem;
  line-height: 1.2;
}

.site-brand-copy span {
  color: var(--muted);
  font-size: 0.74rem;
}

.site-header-meta {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-main {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 10px 0 16px;
}

.app-intro-strip,
.planner-section,
.site-footer,
.planning-context-section {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--panel-strong);
  box-shadow: var(--hero-shadow);
}

.app-intro-strip {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 14px;
  padding: 14px 16px;
  align-items: start;
}

.app-intro-copy h1 {
  margin: 0;
  font-size: clamp(1.52rem, 1.85vw, 2.1rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
}

.app-intro-lead,
.planner-section-copy,
.site-footer p,
.section-heading p,
.helper-card p,
.subtitle {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.app-intro-lead {
  margin-top: 10px;
  max-width: 74ch;
  font-size: 0.9rem;
}

.app-intro-summary {
  display: grid;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #eef2f5;
}

.app-intro-row {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 10px;
  padding: 10px 11px;
  border-bottom: 1px solid var(--border);
  align-items: start;
}

.app-intro-row:last-child {
  border-bottom: 0;
}

.app-intro-label {
  color: var(--muted);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding-top: 2px;
}

.info-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px 16px;
}

.section-kicker h2,
.planner-section-header h2,
.sidebar-header h2 {
  margin: 0;
  font-size: 1.28rem;
  line-height: 1.15;
}

.context-copy {
  display: grid;
  gap: 10px;
  max-width: 980px;
}

.context-copy p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.planner-section {
  padding: 10px;
}

.planner-section-header {
  margin-bottom: 10px;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.app-shell {
  display: grid;
  grid-template-columns: 408px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
}

.sidebar {
  position: sticky;
  top: 58px;
  padding: 10px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: none;
  max-height: calc(100vh - 72px);
  overflow-y: auto;
  scrollbar-gutter: stable;
}

.sidebar-header {
  margin-bottom: 12px;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 0.69rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.controls-form {
  display: flex;
  flex-direction: column;
  gap: var(--control-gap);
}

.panel-section {
  padding: 9px 10px;
  background: #f8f9fb;
  border: 1px solid var(--border);
  border-radius: 4px;
  box-shadow: none;
}

.section-heading {
  margin-bottom: 7px;
}

.section-heading h3 {
  margin: 0 0 4px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.section-heading p,
.subtitle {
  font-size: 0.8rem;
  line-height: 1.45;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.terminal-manager {
  display: flex;
  flex-direction: column;
  gap: var(--control-gap);
  margin-bottom: var(--control-gap);
}

.field-grid {
  display: grid;
  gap: var(--control-gap);
}

.field-grid-two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.field-label,
.inline-label {
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 600;
}

.field input,
.field select {
  width: 100%;
  min-height: 32px;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #ffffff;
  color: var(--text);
}

.helper-card {
  margin-bottom: var(--control-gap);
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #eef2f5;
}

.helper-card strong {
  display: block;
  margin-bottom: 4px;
  font-size: 0.8rem;
}

.helper-card-detail {
  margin-top: 4px !important;
  font-size: 0.76rem;
}

.advanced-override-card {
  display: grid;
  gap: 10px;
  margin-top: var(--control-gap);
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #eef2f5;
}

.advanced-override-card summary {
  cursor: pointer;
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 700;
  list-style: none;
}

.advanced-override-card summary::-webkit-details-marker {
  display: none;
}

.advanced-override-card summary::before {
  content: "+";
  display: inline-block;
  width: 14px;
  margin-right: 6px;
  color: var(--muted);
}

.advanced-override-card[open] summary::before {
  content: "-";
}

.advanced-override-copy {
  margin: 0;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.45;
}

.parameter-row-readonly {
  background: #f5f7f9;
}

.parameter-row-readonly .parameter-label {
  color: var(--muted);
}

.parameter-row-readonly .parameter-number[readonly] {
  background: #f1f4f6;
  color: var(--muted);
  border-style: dashed;
  cursor: default;
}

.parameter-row-readonly .parameter-range:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.parameter-list-compact {
  gap: 10px;
}

.terminal-context-group {
  display: grid;
  gap: var(--control-gap);
}

.button-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--control-gap);
}

.button-row-compact button,
.button-row-tight button {
  min-height: 34px;
}

.controls-form button {
  min-height: 32px;
  padding: 6px 10px;
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  background: #fdfdfd;
  color: var(--text);
  cursor: pointer;
  font-weight: 600;
  transition: background 120ms ease, border-color 120ms ease;
}

.controls-form button:hover:not(:disabled) {
  background: #edf1f4;
  border-color: #7f8b96;
}

.controls-form button:disabled {
  background: #eef1f3;
  border-color: #b8cad7;
  color: rgba(24, 50, 70, 0.65);
  cursor: not-allowed;
}

#optimize-layout {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: #ffffff;
}

#optimize-layout:hover:not(:disabled) {
  background: #274d69;
  border-color: #274d69;
}

.segmented-control {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #edf1f4;
  align-items: stretch;
}

.segmented-control-compact {
  min-width: 0;
  flex: 1;
}

.segment-option {
  position: relative;
  display: flex;
  min-width: 0;
}

.segment-option + .segment-option {
  border-left: 1px solid var(--border);
}

.segment-option input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.segment-option span {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 34px;
  padding: 7px 10px;
  border: 0;
  border-radius: 0;
  background: #eef1f4;
  color: var(--muted);
  font-weight: 600;
  text-align: center;
  white-space: nowrap;
}

.segment-option input:checked + span {
  background: #ffffff;
  color: var(--accent-dark);
  box-shadow: inset 0 0 0 1px rgba(79, 120, 150, 0.35);
}

.control-stack {
  display: flex;
  flex-direction: column;
  gap: var(--control-gap);
}

.control-caption {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.placement-controls-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--control-gap);
  margin-top: var(--control-gap);
}

.workflow-block,
.workflow-subsection {
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #ffffff;
}

.workflow-subsection-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.context-note {
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 600;
}

.workflow-subsection-contextual.is-inactive {
  opacity: 0.58;
  background: rgba(255, 255, 255, 0.55);
}

.workflow-subsection-contextual.is-inactive .context-note {
  color: #6f8698;
}

.parameter-list {
  display: flex;
  flex-direction: column;
  gap: var(--control-gap);
}

.parameter-unit-toggle {
  align-items: flex-start;
  margin-bottom: var(--control-gap);
}

.parameter-unit-toggle .segmented-control {
  width: min(220px, 100%);
}

.parameter-group-label {
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.parameter-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 92px 84px;
  align-items: center;
  gap: var(--control-gap);
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #ffffff;
}

.parameter-label {
  color: var(--text);
  font-size: 0.84rem;
  font-weight: 600;
}

.parameter-label-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.parameter-meta {
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.25;
}

.parameter-number-wrap {
  position: relative;
  display: flex;
  align-items: center;
  min-width: 92px;
}

.parameter-number {
  width: 100%;
  min-height: 32px;
  padding: 6px 22px 6px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  text-align: right;
  font-variant-numeric: tabular-nums;
  appearance: textfield;
  -moz-appearance: textfield;
}

.parameter-number::-webkit-outer-spin-button,
.parameter-number::-webkit-inner-spin-button {
  margin: 0;
  -webkit-appearance: none;
}

.parameter-unit {
  position: absolute;
  right: 10px;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
  pointer-events: none;
  text-transform: uppercase;
}

.parameter-range {
  width: 100%;
  max-width: 84px;
  margin: 0;
  accent-color: var(--accent);
  justify-self: end;
}

.toggle-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toggle-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 9px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #ffffff;
  color: var(--text);
  font-size: 0.84rem;
}

.toggle-row input {
  width: 18px;
  height: 18px;
  margin: 0;
}

.site-object-panel {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.site-object-row {
  align-items: flex-start;
}

.site-object-copy {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.site-object-title {
  color: var(--text);
  font-size: 0.83rem;
  font-weight: 600;
}

.site-object-meta {
  color: var(--muted);
  font-size: 0.73rem;
  line-height: 1.35;
}

.summary {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 8px;
}

.summary-section {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.summary-section-title {
  margin: 0;
  color: var(--muted);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.summary-metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
}

.summary-metric-card {
  padding: 8px 9px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #f6f8fa;
}

.summary-metric-label {
  display: block;
  margin-bottom: 3px;
  color: var(--muted);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.summary-metric-value {
  display: block;
  color: var(--text);
  font-size: 0.88rem;
  line-height: 1.2;
}

.summary-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.summary-rule-groups {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.summary-rule-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.summary-rule-group-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.summary-rule-group-heading span {
  min-width: 22px;
  padding: 1px 6px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #f6f8fa;
  color: var(--text);
  text-align: center;
}

.summary-item {
  padding: 8px 9px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #ffffff;
}

.summary-item-emphasis {
  background: #f8fafb;
}

.summary-item-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 4px;
}

.summary-item-title {
  font-size: 0.82rem;
  line-height: 1.25;
}

.summary-item-meta,
.summary-item-detail,
.summary-empty {
  margin: 0;
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.45;
}

.summary-item-detail {
  margin-top: 2px;
}

.summary-note-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 6px;
}

.summary-note {
  margin: 0;
  padding: 8px 9px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #ffffff;
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.45;
}

.summary-empty {
  padding: 8px 9px;
  border: 1px dashed var(--border);
  border-radius: 4px;
  background: #f8f9fb;
}

.summary-chip {
  display: inline-flex;
  align-items: center;
  min-height: 20px;
  padding: 0 7px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}

.summary-chip-ok {
  border-color: rgba(59, 122, 87, 0.3);
  background: rgba(59, 122, 87, 0.12);
  color: var(--success);
}

.summary-chip-warn {
  border-color: rgba(180, 110, 36, 0.28);
  background: rgba(180, 110, 36, 0.12);
  color: #8a5b1f;
}

.summary-chip-neutral {
  background: #eef2f5;
  color: var(--muted);
}

.status-row {
  padding: 7px 0;
  border-bottom: 1px solid rgba(200, 208, 216, 0.9);
  background: transparent;
}

.status-label {
  display: block;
  margin-bottom: 2px;
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.status-value {
  display: block;
  color: var(--text);
  line-height: 1.4;
}

.status-row-emphasis {
  padding: 7px 9px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #edf2f5;
}

.summary .status-row:last-child {
  border-bottom: 0;
}

.workspace {
  min-width: 0;
}

.canvas-panel {
  position: relative;
  isolation: isolate;
  padding: 10px;
  background: var(--workspace);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: var(--panel-shadow);
}

.canvas-stage {
  position: relative;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #eef2f5;
  min-height: 760px;
}

.workspace-canvas-shell {
  position: relative;
  min-height: 740px;
  aspect-ratio: 2000 / 1400;
  border: 1px solid var(--border);
  border-radius: 2px;
  overflow: hidden;
  background: #dbe4ea;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.map-overlay-controls {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 55;
  display: flex;
  flex-direction: column;
  gap: 0;
  pointer-events: none;
}

.map-overlay-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  min-height: 42px;
  padding: 0;
  border-radius: 0;
  flex: 0 0 auto;
  border-color: rgba(92, 108, 120, 0.22);
  background: rgba(255, 255, 255, 0.08);
  color: rgba(31, 45, 56, 0.56);
  opacity: 0.54;
  box-shadow: none;
  pointer-events: auto;
}

.map-overlay-button svg {
  width: 18px;
  height: 18px;
}

.map-overlay-button + .map-overlay-button {
  margin-top: -1px;
}

.map-opacity-control + .map-overlay-button {
  margin-top: -1px;
}

.map-opacity-control {
  position: absolute;
  top: 0;
  right: 48px;
  display: flex;
  align-items: center;
  gap: 8px;
  width: 154px;
  height: 42px;
  padding: 0 10px;
  border: 1px solid rgba(92, 108, 120, 0.34);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.94);
  color: rgba(31, 45, 56, 0.86);
  opacity: 0;
  pointer-events: none;
  transition:
    background 0.16s ease,
    border-color 0.16s ease,
    opacity 0.16s ease,
    box-shadow 0.16s ease;
}

.map-overlay-controls:has(#toggle-basemap:hover) .map-opacity-control,
.map-overlay-controls:has(#toggle-basemap:focus-visible) .map-opacity-control,
.map-opacity-control:hover,
.map-opacity-control:focus-within {
  background: rgba(255, 255, 255, 0.94);
  border-color: rgba(92, 108, 120, 0.46);
  opacity: 1;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.18);
  pointer-events: auto;
}

.map-opacity-slider {
  width: 96px;
  margin: 0;
  accent-color: var(--accent);
}

.map-opacity-value {
  min-width: 34px;
  font-size: 0.72rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.map-overlay-controls .map-overlay-button:first-child {
  border-top-left-radius: 12px;
  border-top-right-radius: 12px;
}

.map-overlay-controls .map-overlay-button:last-child {
  border-bottom-left-radius: 12px;
  border-bottom-right-radius: 12px;
}

.map-overlay-button:hover,
.map-overlay-button:focus-visible {
  background: rgba(255, 255, 255, 0.92);
  color: var(--text);
  border-color: rgba(92, 108, 120, 0.46);
  opacity: 1;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.18);
}

.map-overlay-button.is-active {
  background: rgba(237, 247, 253, 0.94);
  color: #1f4d6a;
  border-color: rgba(43, 109, 151, 0.62);
  opacity: 0.94;
}

.map-stage-map {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.map-stage-status {
  position: absolute;
  left: 12px;
  bottom: 12px;
  z-index: 20;
  max-width: 420px;
  padding: 8px 10px;
  border: 1px solid rgba(114, 129, 143, 0.5);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.45;
}

.workspace-context-strip {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
}

.workspace-context-message {
  flex: 0 1 auto;
  min-width: 0;
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.45;
  text-align: left;
}

.workspace-context-grid {
  display: flex;
  flex: 0 1 auto;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: flex-start;
  min-width: fit-content;
}

.workspace-context-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: none;
  min-height: 24px;
  padding: 3px 8px;
  border: 1px solid rgba(131, 147, 160, 0.3);
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.62);
}

.workspace-context-label {
  flex: 0 0 auto;
  color: var(--muted);
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.workspace-context-value {
  color: var(--text);
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1.25;
  white-space: normal;
}

.workspace-status-strip {
  margin-top: 8px;
  border-top: 1px solid var(--border);
  padding-top: 8px;
}

.canvas-overlay-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 30px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #eef2f5;
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 700;
  box-shadow: none;
}

.canvas-overlay-label::before {
  content: "RESULTS";
  color: var(--muted);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.export-menu {
  position: relative;
  z-index: 50;
}

.export-menu,
.export-menu-toggle {
  height: 100%;
}

.export-menu[open] .export-menu-toggle {
  background: #edf7fd;
  border-color: #2b6d97;
}

.export-menu-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.export-menu-toggle::-webkit-details-marker {
  display: none;
}

.export-menu-toggle::after {
  content: "▾";
  font-size: 0.85rem;
}

.export-menu-panel {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 80;
  min-width: 168px;
  padding: 8px;
  display: grid;
  gap: 6px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #ffffff;
  box-shadow: 0 6px 14px rgba(18, 28, 45, 0.08);
}

.export-menu-button {
  min-height: 32px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #ffffff;
  color: var(--text);
  cursor: pointer;
  font-weight: 600;
  text-align: left;
  transition: background 120ms ease, border-color 120ms ease;
}

.export-menu-button:hover {
  background: #edf1f4;
  border-color: #7f8b96;
}

.view-tool-button {
  min-height: 32px;
  padding: 6px 10px;
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  background: #ffffff;
  color: var(--text);
  cursor: pointer;
  font-weight: 600;
  transition: background 120ms ease, border-color 120ms ease;
}

.view-tool-button:hover {
  background: #edf1f4;
  border-color: #7f8b96;
}

.view-tool-button.is-active {
  background: #edf7fd;
  border-color: #2b6d97;
  color: #1f4d6a;
}

.export-menu-toggle::after {
  content: "v";
}

.export-menu-panel {
  box-shadow: 0 6px 12px rgba(18, 28, 45, 0.08);
}

.view-tool-button {
  background: #fcfcfd;
}

#scene {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  z-index: 10;
}

#scene[data-canvas-ready="false"] {
  visibility: hidden;
}

.leaflet-container {
  font-family: "Segoe UI", "Helvetica Neue", sans-serif;
}

.site-footer {
  padding: 10px 14px;
  text-align: left;
}

@media (max-width: 1240px) {
  .app-intro-strip,
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    max-height: none;
  }
}

@media (max-width: 980px) {
  .site-header-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    min-height: 50px;
  }

  .planner-section-header {
    flex-direction: column;
    align-items: stretch;
  }

  .parameter-row {
    grid-template-columns: 1fr;
  }

  .map-overlay-controls {
    top: 12px;
    right: 12px;
  }

  .map-overlay-button,
  .map-overlay-button svg {
    width: 17px;
    height: 17px;
  }

  .map-overlay-button {
    width: 38px;
    height: 38px;
    min-height: 38px;
  }

  .workspace-context-grid {
    justify-content: flex-start;
  }

  .export-menu {
    width: 100%;
  }

  .export-menu-panel {
    left: 0;
    right: auto;
    width: min(240px, 100%);
  }

  .view-tool-button {
    flex: 1 1 120px;
    justify-content: center;
  }

  .summary-metric-grid {
    grid-template-columns: 1fr;
  }

  .canvas-overlay-label {
    width: 100%;
    justify-content: space-between;
  }
}

@media (max-width: 640px) {
  .site-header-inner,
  .app-intro-section,
  .info-section,
  .planner-section,
  .site-footer {
    width: min(calc(100% - 24px), var(--site-width));
  }

  .app-intro-strip,
  .planner-section,
  .site-footer,
  .sidebar,
  .canvas-panel {
    padding-left: 12px;
    padding-right: 12px;
  }

  .app-shell {
    gap: 10px;
  }

  .site-header-inner {
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 6px;
    padding: 8px 0;
  }

  .site-header-meta {
    font-size: 0.66rem;
  }

  .app-intro-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .button-row {
    grid-template-columns: 1fr;
  }
}

/* Workspace IA cleanup v1: desktop-tool layout */
:root {
  --left-panel-width: 360px;
  --right-panel-width: 380px;
  --workspace-gap: 8px;
}

.site-header-inner,
.planner-section {
  width: 100%;
  max-width: none;
}

.site-header-inner {
  padding: 0 12px;
}

.site-main {
  min-height: calc(100vh - 47px);
  gap: 0;
  padding: 0;
}

.planner-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--workspace-gap);
  padding: 8px 10px 10px;
  border: 0;
  border-radius: 0;
  background: var(--bg);
}

.workspace-top {
  display: flex;
  flex-direction: column;
  overflow: visible;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--panel-strong);
}

.workspace-top-row {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
  padding: 8px 10px;
  border-bottom: 1px solid rgba(195, 204, 213, 0.76);
}

.workspace-top-row:last-child {
  border-bottom: 0;
}

.workspace-controls-row {
  min-height: 54px;
  background: #ffffff;
}

.workspace-title-group {
  display: grid;
  flex: 0 0 auto;
  gap: 3px;
  min-width: 190px;
  text-align: left;
}

.workspace-label,
.workspace-scenario-field span,
.workspace-status-item span {
  color: var(--muted);
  font-size: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  line-height: 1;
  text-transform: uppercase;
}

.workspace-title {
  color: var(--text);
  font-size: 1rem;
  line-height: 1.2;
  white-space: normal;
}

.workspace-scenario-field {
  display: grid;
  flex: 0 1 420px;
  gap: 5px;
  min-width: 220px;
  padding: 7px 10px;
  border: 1px solid rgba(195, 204, 213, 0.85);
  border-radius: 3px;
  background: #f7f9fb;
  text-align: left;
}

.workspace-scenario-field input {
  width: 100%;
  min-height: 24px;
  padding: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  font-size: 0.98rem;
  font-weight: 700;
}

.workspace-status-row {
  flex-wrap: wrap;
  justify-content: flex-start;
  min-height: 38px;
  padding-top: 7px;
  padding-bottom: 7px;
  background: #f6f8fa;
}

.workspace-status-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  max-width: none;
  min-height: 28px;
  min-width: fit-content;
  padding: 4px 9px;
  border: 1px solid rgba(169, 183, 194, 0.78);
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.82);
}

.workspace-status-item-wide {
  flex: 0 1 auto;
}

.workspace-status-item strong {
  color: var(--text);
  font-size: 0.86rem;
  line-height: 1.15;
  white-space: normal;
}

.workspace-status-item.has-violations {
  border-color: rgba(197, 63, 55, 0.7);
  background: rgba(255, 244, 242, 0.95);
}

.workspace-status-item.has-violations span,
.workspace-status-item.has-violations strong {
  color: #a7372f;
}

.workspace-status-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  padding: 4px 11px;
  border: 1px solid rgba(41, 78, 103, 0.72);
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--accent-dark);
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.workspace-status-action:hover {
  background: #ffffff;
  border-color: var(--accent-dark);
}

.workspace-context-row {
  min-height: 34px;
  padding-top: 7px;
  padding-bottom: 7px;
  background: #eef3f6;
}

.workspace-action-group {
  display: flex;
  align-items: stretch;
  gap: 6px;
  min-width: 0;
}

.workspace-action-group .export-menu-toggle {
  justify-content: space-between;
  min-width: 84px;
  border-radius: 3px;
}

.global-optimize-button {
  align-self: stretch;
  min-width: 152px;
  padding: 0 18px;
  border: 1px solid var(--accent-dark);
  border-radius: 3px;
  background: var(--accent-dark);
  color: #ffffff;
  cursor: pointer;
  font-weight: 800;
}

.global-optimize-button:hover:not(:disabled) {
  background: #274d69;
  border-color: #274d69;
}

.global-optimize-button:disabled {
  cursor: not-allowed;
  opacity: 0.72;
}

.app-shell {
  grid-template-columns:
    minmax(300px, var(--left-panel-width))
    minmax(560px, 1fr)
    minmax(320px, var(--right-panel-width));
  gap: var(--workspace-gap);
  align-items: stretch;
  min-height: 640px;
  height: calc(100vh - 190px);
}

.sidebar {
  top: 58px;
  height: 100%;
  max-height: none;
  padding: 8px;
  border-radius: 6px;
}

.sidebar-header {
  margin-bottom: 8px;
}

.sidebar-header h2 {
  font-size: 1.04rem;
}

.review-sidebar {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: var(--control-gap);
  overflow: hidden;
}

.review-sidebar .review-controls-scroll {
  min-height: 0;
  overflow: auto;
}

.review-sidebar .review-controls-scroll {
  scrollbar-gutter: stable;
}

.review-controls-scroll {
  display: flex;
  flex-direction: column;
  gap: var(--control-gap);
}

.controls-form {
  gap: var(--control-gap);
}

.workspace,
.canvas-panel {
  min-height: 0;
  height: 100%;
}

.canvas-panel {
  display: flex;
  flex-direction: column;
  padding: 8px;
  border-radius: 6px;
}

.canvas-stage {
  flex: 1 1 auto;
  display: grid;
  place-items: center;
  min-height: 0;
  padding: 4px;
}

.workspace-canvas-shell {
  width: 100%;
  height: 100%;
  min-height: 0;
  aspect-ratio: auto;
}

.summary {
  margin-top: 0;
}

.detail-review-modal[hidden] {
  display: none;
}

.detail-review-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: grid;
  place-items: center;
  padding: 24px;
}

.detail-review-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(20, 31, 40, 0.42);
  backdrop-filter: blur(2px);
}

.detail-review-dialog {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  width: min(920px, calc(100vw - 48px));
  max-height: min(820px, calc(100vh - 48px));
  border: 1px solid rgba(137, 153, 166, 0.9);
  border-radius: 6px;
  background: #f8fafb;
  box-shadow: 0 26px 80px rgba(11, 26, 38, 0.24);
  overflow: hidden;
}

.detail-review-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 18px 14px;
  border-bottom: 1px solid rgba(195, 204, 213, 0.82);
  background: #ffffff;
}

.detail-review-header .section-heading {
  margin: 0;
}

.detail-review-close {
  flex: 0 0 auto;
  min-height: 32px;
  padding: 0 12px;
  border: 1px solid rgba(169, 183, 194, 0.9);
  border-radius: 3px;
  background: #ffffff;
  color: var(--text);
  cursor: pointer;
  font-weight: 800;
}

.detail-review-close:hover {
  border-color: var(--accent-dark);
  color: var(--accent-dark);
}

.detail-review-summary {
  flex: 1 1 auto;
  min-height: 0;
  padding: 14px 18px 18px;
  overflow: auto;
}

body.detail-review-open {
  overflow: hidden;
}

/* Aircraft Type Requirement Modal */
.aircraft-requirement-dialog {
  width: min(540px, calc(100vw - 48px));
  max-height: min(700px, calc(100vh - 48px));
}

.aircraft-requirement-body {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.aircraft-requirement-row {
  display: flex;
  align-items: flex-end;
  gap: 8px;
}

.aircraft-requirement-row-aircraft {
  flex: 1 1 auto;
}

.aircraft-requirement-row-count {
  flex: 0 0 80px;
}

.aircraft-requirement-remove-button {
  flex: 0 0 auto;
  min-height: 32px;
  min-width: 32px;
  padding: 0 8px;
  border: 1px solid rgba(169, 183, 194, 0.9);
  border-radius: 3px;
  background: #fff;
  color: #a7372f;
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: 700;
}

.aircraft-requirement-remove-button:hover {
  background: #fff4f2;
  border-color: #a7372f;
}

.aircraft-requirement-add-button {
  align-self: flex-start;
  min-height: 30px;
  padding: 4px 12px;
  border: 1px dashed rgba(41, 78, 103, 0.55);
  border-radius: 3px;
  background: transparent;
  color: var(--accent-dark);
  cursor: pointer;
  font-weight: 700;
  font-size: 0.82rem;
}

.aircraft-requirement-add-button:hover {
  background: #edf7fd;
  border-color: var(--accent-dark);
}

.aircraft-requirement-fill-row {
  padding-top: 8px;
  border-top: 1px solid var(--border);
}

.aircraft-requirement-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  padding: 12px 18px;
  border-top: 1px solid rgba(195, 204, 213, 0.82);
  background: #ffffff;
}

@media (max-width: 1420px) {
  .app-shell {
    grid-template-columns: 330px minmax(520px, 1fr) 340px;
  }

  .workspace-title-group {
    min-width: 160px;
  }

  .workspace-status-item-wide {
    flex-basis: auto;
  }
}

@media (max-width: 1180px) {
  .app-shell {
    height: auto;
    grid-template-columns: 1fr;
  }

  .sidebar,
  .canvas-panel {
    height: auto;
  }

  .review-sidebar {
    display: flex;
    overflow: visible;
  }

  .review-sidebar .review-controls-scroll {
    overflow: visible;
  }

  .canvas-stage {
    min-height: 680px;
  }

  .workspace-canvas-shell {
    height: 680px;
    min-height: 0;
  }

  .workspace-controls-row,
  .workspace-status-row,
  .workspace-context-row {
    flex-wrap: wrap;
  }

  .workspace-title-group,
  .workspace-scenario-field,
  .workspace-action-group,
  .global-optimize-button,
  .workspace-status-action {
    flex: 1 1 100%;
    text-align: left;
  }

  .workspace-action-group {
    justify-content: stretch;
  }

  .workspace-context-message {
    text-align: left;
  }

  .workspace-action-group .export-menu {
    flex: 1 1 0;
  }

  .workspace-action-group .export-menu-toggle {
    justify-content: center;
    width: 100%;
  }
}