/*
 * Base layout and component styles for the vanilla NRDS client. tokens.css owns the design tokens;
 * this file owns element and component rules. Fonts fall back to the system stack in --font-ui.
 */

*,
*::before,
*::after {
  box-sizing: border-box;
}

/* The hidden attribute must win over component display rules (the chart toggles its state
 * containers with el.hidden); a bare display: flex/block would otherwise override it. */
[hidden] {
  display: none !important;
}

html,
body,
#root {
  height: 100%;
  margin: 0;
  background-color: var(--background-color);
  color: var(--text-color);
  font-family: var(--font-ui);
}

/* The shell lays the page out as a column: the navbar on top at --ts-header-height and the map area
 * filling the rest below it (U6). Everything that floats over the map is a child of the map area. */
#root {
  display: flex;
  flex-direction: column;
}

.nrds-map-area {
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
  width: 100%;
  overflow: hidden;
}

.nrds-map-area:focus {
  outline: none;
}

/* Timeseries chart (U4). The factory fills whatever host U5 gives it, so the chart stretches to
 * its container; the message and tooltip carry only what uPlot's own stylesheet does not. */
.nrds-chart {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.nrds-chart__canvas {
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
}

.nrds-chart__message {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  text-align: center;
  color: var(--chart-empty-text-color);
  font-size: var(--text-sm);
}

.nrds-chart__message--error {
  color: var(--status-failed-text);
}

.nrds-chart__tooltip {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 2;
  min-width: 60px;
  padding: var(--space-sm);
  border-radius: var(--radius-md);
  background: var(--chart-tooltip-bg);
  color: var(--chart-tooltip-text);
  border: 1px solid var(--chart-tooltip-border-color);
  font-size: var(--text-sm);
  line-height: 1.35;
  white-space: nowrap;
}

.nrds-chart__tooltip-value {
  font-weight: var(--weight-strong);
}

/* Anchored feature popup (U5) and the hover readout share the callout dressing; only the content
 * padding differs (the feature popup hosts a fixed-size chart, the hover popup is text). Tokens
 * match the React popup. */
.maplibregl-popup.nrds-feature-popup-shell .maplibregl-popup-content,
.maplibregl-popup.nrds-hover-popup-shell .maplibregl-popup-content {
  background-color: var(--popup-bg);
  color: var(--popup-text-color);
  border-radius: var(--radius-md);
  box-shadow: var(--elevation-map-readout);
}

.maplibregl-popup.nrds-feature-popup-shell .maplibregl-popup-content {
  padding: 0;
}

.maplibregl-popup.nrds-hover-popup-shell .maplibregl-popup-content {
  padding: 8px 10px;
}

.maplibregl-popup.nrds-feature-popup-shell .maplibregl-popup-tip,
.maplibregl-popup.nrds-hover-popup-shell .maplibregl-popup-tip {
  border-top-color: var(--popup-bg);
  border-bottom-color: var(--popup-bg);
}

/* maplibre's default close button renders as a near-invisible glyph on the popup surface; give it a
 * visible, themed target that matches the other panel close controls. */
.maplibregl-popup.nrds-feature-popup-shell .maplibregl-popup-close-button {
  top: 6px;
  right: 6px;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--panel-text-muted);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
}

.maplibregl-popup.nrds-feature-popup-shell .maplibregl-popup-close-button:hover {
  background: var(--select-option-hover-bg);
  color: var(--popup-text-color);
}

.maplibregl-popup.nrds-feature-popup-shell .maplibregl-popup-close-button:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

.nrds-feature-popup {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-width: 340px;
  font-size: var(--text-sm);
  line-height: 1.4;
}

.nrds-feature-popup .popup-header {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 8px 30px 8px 10px;
  border-bottom: 1px solid var(--panel-border-color);
}

.nrds-feature-popup .popup-row {
  display: flex;
  justify-content: space-between;
  gap: 6px;
}

.nrds-feature-popup .popup-label {
  font-weight: 500;
  opacity: 0.8;
}

.nrds-feature-popup .popup-value {
  font-family: var(--font-mono);
  word-break: break-all;
}

.nrds-feature-popup__chart {
  position: relative;
  width: 340px;
  max-width: 100%;
  height: 220px;
  padding: 0 6px 6px;
}

/* Hover readout (Enable Hovering). A small following popup that shares the feature popup's callout
 * dressing (see above), showing the animated value and the reach's key attributes under the pointer. */
.nrds-hover-popup {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-width: 260px;
  font-size: var(--text-sm);
  line-height: 1.4;
  pointer-events: none;
}

.nrds-hover-popup .popup-title {
  font-weight: 600;
  opacity: 0.7;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.nrds-hover-popup .popup-row {
  display: flex;
  justify-content: space-between;
  gap: 8px;
}

.nrds-hover-popup .popup-label {
  font-weight: 500;
  opacity: 0.8;
}

.nrds-hover-popup .popup-value {
  font-family: var(--font-mono);
}

.nrds-hover-popup .popup-measure .popup-value {
  font-weight: 600;
}

/* Selection locator. The highlight layers fade out below zoom 7, so this marker keeps the selected
 * feature findable at every zoom, including CONUS scale. */
.nrds-selection-marker {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background-color: var(--map-divides-highlight-outline);
  border: 2px solid #fff;
  box-shadow: 0 0 0 2px var(--map-divides-highlight-outline), 0 1px 4px rgba(0, 0, 0, 0.4);
  pointer-events: none;
}

/* Shared select (KTD6), the vanilla replacement for react-select. A select-only combobox: a control
 * that opens a listbox, themed from the --select-* tokens and sized 44px normal / 30px compact to
 * match the React control heights. */
.nrds-select {
  position: relative;
  width: 100%;
  font-size: var(--text-sm);
}

.nrds-select__control {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xs);
  min-height: 44px;
  height: 44px;
  padding: 0 var(--space-sm);
  border: 1px solid var(--select-control-border);
  border-radius: var(--radius-sm);
  background: var(--select-control-bg);
  color: var(--select-text-color);
  cursor: pointer;
  user-select: none;
}

.nrds-select[data-compact] .nrds-select__control {
  min-height: 30px;
  height: 30px;
}

.nrds-select__control:hover {
  border-color: var(--nav-pill-active-bg);
}

.nrds-select__control:focus-visible {
  outline: none;
  border-color: var(--nav-pill-active-bg);
  box-shadow: 0 0 0 2px var(--nav-pill-active-bg);
}

.nrds-select__value {
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.nrds-select__arrow {
  display: flex;
  flex: 0 0 auto;
  color: var(--select-placeholder-color);
  transition: transform 0.12s ease;
}

.nrds-select__arrow svg {
  width: 16px;
  height: 16px;
}

.nrds-select__control[aria-expanded='true'] .nrds-select__arrow {
  transform: rotate(180deg);
}

.nrds-select__listbox {
  position: absolute;
  top: calc(100% + 2px);
  left: 0;
  right: 0;
  z-index: 9999;
  margin: 0;
  padding: 0;
  max-height: 240px;
  overflow-y: auto;
  list-style: none;
  background: var(--select-menu-bg);
  border: 1px solid var(--select-control-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--elevation-map-control);
}

/* Open the menu above the control when there is not enough room below, so a select near the bottom
 * of the screen (the time dock's speed control) never drops its options off-screen. */
.nrds-select--up .nrds-select__listbox {
  top: auto;
  bottom: calc(100% + 2px);
}

.nrds-select__option {
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--text-xs);
  color: var(--select-text-color);
  white-space: normal;
  overflow-wrap: break-word;
  cursor: pointer;
}

.nrds-select__option.is-active {
  background: var(--select-option-hover-bg);
}

/* Selected wins over active, so the chosen row keeps its fill while the pointer moves over it. */
.nrds-select__option[aria-selected='true'] {
  background: var(--select-option-selected-bg);
  color: var(--nav-pill-active-text-color);
}

/* Variable picker (U5a): a compact select above the popup chart. */
.nrds-variable-picker {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: var(--space-xs) 10px 2px;
}

.nrds-variable-picker__label {
  flex: 0 0 auto;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--popup-text-color);
}

.nrds-variable-picker__select {
  flex: 1 1 auto;
  min-width: 0;
}

/* Time slider dock (U5a): the animation transport, docked bottom-centre over the map. Ported from
 * the React TimeSlider.css intent -- one row of a play button, a range input, a readout, and a
 * speed select -- now on a floating panel rather than in the sidebar. */
.nrds-time-dock {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  width: min(560px, calc(100% - 32px));
  z-index: 5;
}

.nrds-time-dock .time-dock {
  padding: var(--space-sm) var(--space-md);
  background: var(--map-panel-bg);
  color: var(--map-panel-text);
  border: 1px solid var(--panel-border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--elevation-map-control);
  container-type: inline-size;
}

.nrds-time-dock .dock-row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nrds-time-dock .time-value {
  flex: 0 0 auto;
  min-width: 60px;
  text-align: right;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
  font-size: var(--text-sm);
  color: var(--map-panel-text);
}

.nrds-time-dock .speed-select-host {
  flex: 0 0 auto;
  width: 72px;
}

/* The play/pause button is the row's height and a 44px touch target, as the React audit set it. */
.nrds-time-dock .play-btn {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: var(--space-sm);
  background: var(--button-primary-bg);
  border: 1px solid var(--panel-border-color);
  border-radius: var(--radius-sm);
  color: var(--button-primary-text);
  cursor: pointer;
}

.nrds-time-dock .play-btn:hover:not(:disabled) {
  background-color: var(--button-primary-hover-bg);
  color: var(--button-primary-text-hover);
}

.nrds-time-dock .play-btn:focus-visible {
  outline: 2px solid var(--nav-pill-active-bg);
  outline-offset: 2px;
}

.nrds-time-dock .play-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.nrds-time-dock .play-btn.active {
  background: var(--nav-pill-active-bg);
  border-color: transparent;
  color: var(--nav-pill-active-text-color);
}

.nrds-time-dock .play-btn svg {
  width: 18px;
  height: 18px;
}

/* Scoped to this dock so it does not reach every range input in the app. The input is a tall,
 * transparent hit area; the visible bar is the track pseudo-element. */
.nrds-time-dock .time-slider {
  flex: 1 1 auto;
  min-width: 60px;
  height: 44px;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  outline: none;
}

.nrds-time-dock .time-slider::-webkit-slider-runnable-track {
  height: 6px;
  background: var(--panel-border-color);
  border-radius: var(--radius-sm);
}

.nrds-time-dock .time-slider::-moz-range-track {
  height: 6px;
  background: var(--panel-border-color);
  border-radius: var(--radius-sm);
}

.nrds-time-dock .time-slider:focus-visible {
  outline: 2px solid var(--nav-pill-active-bg);
  outline-offset: 2px;
}

.nrds-time-dock .time-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: var(--space-md);
  height: var(--space-md);
  margin-top: -5px;
  background: var(--nav-pill-active-bg);
  border-radius: 50%;
  cursor: pointer;
}

.nrds-time-dock .time-slider::-moz-range-thumb {
  width: var(--space-md);
  height: var(--space-md);
  background: var(--nav-pill-active-bg);
  border: 0;
  border-radius: 50%;
  cursor: pointer;
}

.nrds-time-dock .time-slider:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Map control menu (U5b): the unified panel of layer toggles, colour scale, value legend and the
 * theme toggle, plus its floating opener. Ported from the React ControlMenu/Styles intent -- a
 * framed surface over the map with 44px touch targets and token-driven colours. */
.nrds-control-menu__opener {
  position: absolute;
  top: 16px;
  left: 10px;
  z-index: 1001;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: 8px;
  border: 1px solid var(--panel-border-color);
  border-radius: 20px;
  background-color: var(--button-primary-bg);
  color: var(--accent-text);
  box-shadow: var(--elevation-map-control);
  cursor: pointer;
}

.nrds-control-menu__opener:hover,
.nrds-control-menu__opener:focus {
  color: var(--hover-text);
  background-color: var(--button-primary-hover-bg);
}

.nrds-control-menu__opener:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

.nrds-control-menu__opener svg {
  width: 20px;
  height: 20px;
}

.nrds-control-menu__panel {
  position: absolute;
  top: 16px;
  left: 10px;
  z-index: 1000;
  width: min(300px, calc(100vw - 32px));
  max-height: calc(100% - 32px);
  padding: 14px 16px;
  background-color: var(--map-panel-bg);
  color: var(--map-panel-text);
  border: 1px solid var(--panel-border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--elevation-map-control);
  overflow-y: auto;
}

@media (max-width: 768px) {
  .nrds-control-menu__panel {
    left: 8px;
    right: 8px;
    width: auto;
    /* Cap the height so the panel does not swallow the whole screen: the map stays visible behind
     * it and the feature sheet keeps room at the bottom instead of colliding with it. */
    max-height: min(68vh, calc(100% - 16px));
  }
}

/* When a feature's bottom sheet is open on a phone it owns the lower half, so tighten the control
 * panel's height cap to the space above the sheet, keeping both usable instead of overlapping. */
@media (max-width: 768px) {
  body[data-sheet='expanded'] .nrds-control-menu__panel {
    max-height: min(40vh, calc(100% - var(--sheet-offset, 0px) - 24px));
  }

  body[data-sheet='collapsed'] .nrds-control-menu__panel {
    max-height: min(56vh, calc(100% - var(--sheet-offset, 0px) - 24px));
  }
}

.nrds-control-menu__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.nrds-control-menu__title {
  margin: 0;
  font-size: var(--text-md);
  font-weight: var(--weight-strong);
  color: var(--map-panel-text);
}

.nrds-control-menu__close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  margin: -8px -8px -8px 0;
  padding: 0;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--map-panel-text);
  cursor: pointer;
}

.nrds-control-menu__close:hover {
  background: var(--select-option-hover-bg);
}

.nrds-control-menu__close:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

.nrds-control-menu__close svg {
  width: 18px;
  height: 18px;
}

.nrds-control-menu__section {
  padding-block: 10px;
  border-block-end: 1px solid var(--panel-border-color);
}

.nrds-control-menu__section:first-of-type {
  padding-top: 0;
}

.nrds-control-menu__section:last-of-type {
  padding-bottom: 0;
  border-block-end: none;
}

.nrds-control-menu__heading {
  margin: 0 0 var(--space-xs);
  font-size: var(--text-xs);
  font-weight: var(--weight-strong);
  color: var(--panel-text-muted);
  text-transform: none;
}

.nrds-control-menu__subheading {
  margin: var(--space-sm) 0 var(--space-xs);
  font-size: var(--text-sm);
  font-weight: var(--weight-strong);
  color: var(--accent-text);
}

.nrds-control-menu__row {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  min-height: 44px;
}

.nrds-control-menu__label {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  overflow-wrap: break-word;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--accent-text);
  cursor: pointer;
}

.nrds-control-menu__swatch {
  display: inline-flex;
  flex: 0 0 auto;
  line-height: 0;
}

.nrds-control-menu__swatch svg {
  display: block;
}

/* The colour-scale row: label on the left, the compact shared select taking the rest. */
.nrds-control-menu__row--scale {
  gap: var(--space-md);
}

.nrds-control-menu__scale-select {
  flex: 1 1 auto;
  min-width: 0;
  max-width: 62%;
}

/* Run cascade (U5c): the model -> date -> forecast -> cycle -> ensemble -> output-file dependent
 * selects, the no-output notice, and the Update button that live in the "Model run" slot. The label
 * sits above its select so each value has the panel's full width to spell out. */
.nrds-run-cascade__row {
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  gap: 4px;
  min-height: 0;
  margin-bottom: var(--space-xs);
}

.nrds-run-cascade__label {
  cursor: default;
}

.nrds-run-cascade__select {
  width: 100%;
  min-width: 0;
}

/* A disabled level: dimmed, and out of the pointer's reach while a cascade is still resolving. */
.nrds-select.is-disabled {
  opacity: 0.55;
}

.nrds-select.is-disabled .nrds-select__control {
  cursor: not-allowed;
  pointer-events: none;
}

.nrds-run-cascade__notice {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin: var(--space-sm) 0 0;
  padding: 10px 12px;
  border: 1px solid var(--panel-border-color);
  border-radius: 6px;
  background-color: var(--status-failed-bg);
  color: var(--status-failed-text);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  line-height: 1.35;
}

.nrds-run-cascade__notice-icon {
  display: inline-flex;
  flex: 0 0 auto;
  line-height: 0;
}

.nrds-run-cascade__notice-icon svg {
  width: 16px;
  height: 16px;
}

.nrds-run-cascade__actions {
  margin-top: 10px;
}

.nrds-run-cascade__update {
  width: 100%;
  min-height: 44px;
  padding: 7px 8px;
  border: 1px solid var(--panel-border-color);
  border-radius: var(--radius-sm);
  background: var(--button-primary-bg);
  color: var(--accent-text);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  cursor: pointer;
}

.nrds-run-cascade__update:not(:disabled):hover,
.nrds-run-cascade__update:not(:disabled):focus-visible {
  background-color: var(--button-primary-hover-bg);
  color: var(--button-primary-text-hover);
}

.nrds-run-cascade__update:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

.nrds-run-cascade__update:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Toggle switch: a visually-hidden real checkbox (still focusable and keyboard-toggleable) drives a
 * styled track and thumb. Pseudo-elements do not render on the replaced <input>, so the knob is a
 * real span. */
.nrds-switch {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: flex-end;
  min-height: 44px;
  cursor: pointer;
}

.nrds-switch input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
}

.nrds-switch__track {
  position: relative;
  width: 34px;
  height: 18px;
  border-radius: var(--radius-pill);
  background: var(--switch-inactive);
  border: 1px solid var(--select-control-border);
  transition: background 0.15s ease, border-color 0.15s ease;
}

.nrds-switch__thumb {
  position: absolute;
  top: 1px;
  left: 1px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--select-control-border);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
  transition: transform 0.15s ease;
}

.nrds-switch input:checked ~ .nrds-switch__track {
  background: var(--switch-active);
  border-color: var(--switch-active);
}

.nrds-switch input:checked ~ .nrds-switch__track .nrds-switch__thumb {
  transform: translateX(16px);
}

.nrds-switch input:focus-visible ~ .nrds-switch__track {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

/* Value legend: a gradient bar with three tick labels and a title (variable, units, scale name). */
.nrds-control-menu__legend {
  margin-top: var(--space-sm);
}

.nrds-control-menu__legend-titlerow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  margin-bottom: 6px;
}

.nrds-control-menu__legend-title {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: var(--panel-text-muted);
}

.nrds-control-menu__legend-bar {
  height: 8px;
  border-radius: var(--radius-sm);
}

.nrds-control-menu__legend-scale {
  display: flex;
  justify-content: space-between;
  margin-top: 4px;
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  color: var(--panel-text-muted);
}

.nrds-control-menu__legend-empty {
  margin: var(--space-xs) 0 0;
  font-size: var(--text-xs);
  color: var(--panel-text-muted);
}

/* Showing section: a stacked field (label above its control) for Configuration, the variable, and
 * the value legend (whose header carries the reverse toggle and the ramp settings gear). */
.nrds-control-menu__field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: var(--space-sm);
}

.nrds-control-menu__field-label {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--accent-text);
}

.nrds-control-menu__config-button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  width: 100%;
  min-height: var(--tap-min);
  padding: 8px 10px;
  border: 1px solid var(--panel-border-color);
  border-radius: var(--radius-sm);
  background: var(--select-control-bg);
  color: var(--map-panel-text);
  font: inherit;
  cursor: pointer;
  text-align: left;
}

.nrds-control-menu__config-button:hover,
.nrds-control-menu__config-button:focus-visible {
  border-color: var(--map-divides-highlight-outline);
  outline: none;
}

.nrds-control-menu__config-button:focus-visible,
.nrds-control-menu__icon-button:focus-visible,
.nrds-ramp-option:focus-visible {
  box-shadow: 0 0 0 2px var(--nav-pill-active-bg);
}

.nrds-control-menu__config-summary {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
  font-size: var(--text-sm);
}

.nrds-control-menu__config-chevron {
  display: inline-flex;
  flex: 0 0 auto;
  line-height: 0;
  color: var(--panel-text-muted);
}

.nrds-control-menu__config-chevron svg {
  width: 16px;
  height: 16px;
}

.nrds-control-menu__legend-tools {
  display: flex;
  flex: 0 0 auto;
  gap: 2px;
}

/* Compact icon buttons that sit inline with the legend title, smaller than the panel's other icon
   buttons because they ride alongside a single line of text. */
.nrds-control-menu__legend-tools .nrds-control-menu__icon-button {
  width: 26px;
  height: 26px;
}

.nrds-control-menu__legend-tools .nrds-control-menu__icon-button svg {
  width: 14px;
  height: 14px;
}

.nrds-control-menu__icon-button {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  width: var(--tap-min);
  height: var(--tap-min);
  padding: 0;
  border: 1px solid var(--panel-border-color);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--map-panel-text);
  cursor: pointer;
}

.nrds-control-menu__icon-button:hover,
.nrds-control-menu__icon-button:focus-visible {
  border-color: var(--map-divides-highlight-outline);
  outline: none;
}

.nrds-control-menu__icon-button.is-active {
  border-color: var(--nav-pill-active-bg);
  color: var(--nav-pill-active-bg);
}

.nrds-control-menu__icon-button svg {
  width: 16px;
  height: 16px;
}

/* Dialog (Configuration, Color Bar): a centred card over a dimmed backdrop. Namespaced `nrds-dialog`
   so its rules never collide with the shell `nrds-modal` used by the first-run notice and info panels. */
.nrds-dialog__backdrop {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  background-color: color-mix(in oklab, var(--modal-scrim) 45%, transparent);
}

.nrds-dialog {
  width: min(360px, calc(100vw - 32px));
  max-height: calc(100dvh - 32px);
  display: flex;
  flex-direction: column;
  background: var(--map-panel-bg);
  color: var(--map-panel-text);
  border: 1px solid var(--panel-border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--elevation-map-control);
  overflow: hidden;
}

.nrds-dialog__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: 12px 16px;
  border-bottom: 1px solid var(--panel-border-color);
}

.nrds-dialog__title {
  margin: 0;
  font-size: var(--text-md);
  font-weight: var(--weight-strong);
}

.nrds-dialog__close {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  width: var(--tap-min);
  height: var(--tap-min);
  padding: 0;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--panel-text-muted);
  cursor: pointer;
}

.nrds-dialog__close:hover {
  color: var(--map-panel-text);
}

.nrds-dialog__close:focus-visible {
  color: var(--map-panel-text);
  outline: none;
  box-shadow: 0 0 0 2px var(--nav-pill-active-bg);
}

.nrds-dialog__close svg {
  width: 18px;
  height: 18px;
}

.nrds-dialog__content {
  padding: 16px;
  overflow-y: auto;
}

.nrds-dialog .nrds-control-menu__scale-select {
  max-width: none;
}

/* Colour ramp picker (Color Bar modal): a list of gradient swatches, one per named ramp. */
.nrds-ramp-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.nrds-ramp-option {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  width: 100%;
  min-height: var(--tap-min);
  padding: 6px 8px;
  border: 1px solid var(--panel-border-color);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--map-panel-text);
  font: inherit;
  cursor: pointer;
  text-align: left;
}

.nrds-ramp-option:hover,
.nrds-ramp-option:focus-visible {
  border-color: var(--map-divides-highlight-outline);
  outline: none;
}

.nrds-ramp-option.is-selected {
  border-color: var(--map-divides-highlight-outline);
  box-shadow: 0 0 0 1px var(--map-divides-highlight-outline);
}

/* Touch input: the compact selects keep their design-sanctioned dense height for the mouse, but rise
   to the 44px tap minimum on coarse pointers where a fingertip needs the room. */
@media (pointer: coarse) {
  .nrds-select[data-compact] .nrds-select__control {
    min-height: var(--tap-min);
  }
}

.nrds-ramp-option__bar {
  flex: 1 1 auto;
  min-width: 0;
  height: 14px;
  border-radius: var(--radius-sm);
}

.nrds-ramp-option__label {
  flex: 0 0 auto;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
}

/* The Appearance/theme-toggle styles that lived here moved to the navbar theme toggle (U6); see
 * the .nrds-theme-toggle rules in the shell section below. */

/* ================================================================================================
 * App shell (U6): the navbar, its brand/badge/search-slot/load-status/theme-toggle/info controls,
 * the skip link, the boot loader and spinner, the modal dialogs, the toasts, and the error view.
 * Ported from the React Tethys/DataStream styled-components; token-driven and theme-aware.
 * ============================================================================================== */

/* The first thing a keyboard reaches, and only then. */
.nrds-skip-link {
  position: absolute;
  left: var(--space-sm);
  top: -100%;
  z-index: 3000;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  background: var(--nav-pill-active-bg);
  color: var(--nav-pill-active-text-color);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  text-decoration: none;
}

.nrds-skip-link:focus {
  top: var(--space-sm);
}

/* --- Navbar ------------------------------------------------------------------------------------- */
.nrds-navbar {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: var(--space-md);
  min-height: var(--ts-header-height);
  height: var(--ts-header-height);
  padding: 0 var(--space-md);
  background-color: var(--background-color);
  color: var(--title-text-color);
  border-bottom: 1px solid var(--panel-border-color);
  box-shadow: var(--elevation-map-readout);
  z-index: 1100;
}

.nrds-navbar__group {
  display: flex;
  align-items: center;
  gap: clamp(8px, 3vw, 32px);
  min-width: 0;
}

.nrds-navbar__group--start {
  flex: 1 1 auto;
}

.nrds-navbar__group--end {
  flex: 0 0 auto;
  gap: var(--space-xs);
}

.nrds-navbar__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  flex: 0 1 auto;
  min-width: 0;
  color: var(--title-text-color);
  text-decoration: none;
}

.nrds-navbar__brand:hover,
.nrds-navbar__brand:focus {
  color: var(--title-text-color);
  text-decoration: none;
}

.nrds-navbar__brand:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.nrds-navbar__brand-icon {
  display: block;
  width: 30px;
  height: 30px;
  border-radius: 50%;
}

.nrds-navbar__brand-name {
  font-size: var(--text-lg);
  font-weight: var(--weight-strong);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

@media (max-width: 575px) {
  .nrds-navbar__brand-name {
    display: none;
  }
}

/* Experimental badge: a standing property worn beside the name; the full word gives way to "Exp"
 * where the row cannot spare the width. */
.nrds-navbar__badge {
  flex: 0 0 auto;
  padding: 1px var(--space-sm);
  border: 1px solid var(--notice-border);
  border-radius: var(--radius-pill);
  background-color: var(--notice-bg);
  color: var(--notice-text);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  line-height: 1.5;
  white-space: nowrap;
}

.nrds-navbar__badge-short {
  display: none;
}

.nrds-navbar__badge-assistive {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

@media (max-width: 560px) {
  .nrds-navbar__badge {
    padding: 2px 8px;
    font-size: 0.65rem;
  }

  .nrds-navbar__badge-full {
    display: none;
  }

  .nrds-navbar__badge-short {
    display: inline;
  }
}

/* The feature-id search box slot: an empty, marked placeholder built in a later unit. It gives up
 * its space until then, and never grows the navbar. */
.nrds-navbar__search-slot {
  display: flex;
  align-items: center;
  flex: 0 1 auto;
  min-width: 0;
}

.nrds-navbar__search-slot:empty {
  display: none;
}

/* Load-status readout: a small pill, spinner plus message, that hides when nothing is loading. */
.nrds-load-status {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex: 0 1 auto;
  min-width: 0;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  line-height: 1.2;
  color: var(--status-text);
  background-color: var(--status-bg);
}

.nrds-load-status--failed {
  color: var(--status-failed-text);
  background-color: var(--status-failed-bg);
}

.nrds-load-status__text {
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

@media (max-width: 768px) {
  .nrds-load-status {
    max-width: 45vw;
    font-size: 0.85rem;
    padding: 4px 10px;
  }
}

@media (max-width: 640px) {
  .nrds-load-status {
    padding: 4px;
  }

  .nrds-load-status__text:not(:only-child) {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }
}

/* Navbar theme toggle: the light/dark control, moved here from the map control menu (U6). */
.nrds-theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: var(--tap-min);
  min-height: var(--tap-min);
  padding: 5px;
  border: none;
  border-radius: 20px;
  background-color: transparent;
  color: var(--text-color);
  font-size: 1.5rem;
  line-height: 0;
  cursor: pointer;
  transition: background-color 180ms ease, color 180ms ease;
}

.nrds-theme-toggle:hover {
  background-color: var(--button-primary-hover-bg);
  color: var(--text-color);
}

.nrds-theme-toggle:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

.nrds-theme-toggle svg {
  display: block;
  width: 1.5rem;
  height: 1.5rem;
}

/* Navbar info button. */
.nrds-navbar__info {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: var(--tap-min);
  min-height: var(--tap-min);
  padding: 5px;
  border: none;
  border-radius: 20px;
  background-color: transparent;
  color: var(--text-color);
  cursor: pointer;
  transition: background-color 180ms ease, color 180ms ease;
}

.nrds-navbar__info:hover,
.nrds-navbar__info:focus {
  background-color: var(--button-primary-hover-bg);
  color: var(--text-color);
}

.nrds-navbar__info:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

.nrds-navbar__info svg {
  width: 1.5rem;
  height: 1.5rem;
}

/* --- Spinner (boot loader and load status) ----------------------------------------------------- */
.nrds-spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: nrds-spin 0.8s linear infinite;
}

.nrds-spinner--lg {
  width: 32px;
  height: 32px;
  border-width: 3px;
}

.nrds-load-status__spinner {
  display: inline-flex;
  line-height: 0;
}

@keyframes nrds-spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes nrds-pulse {
  50% {
    opacity: 0.35;
  }
}

/* Reduced motion: drop the spin (a vestibular trigger) for a full ring that pulses opacity instead,
   which still reads as "working" without spatial motion. */
@media (prefers-reduced-motion: reduce) {
  .nrds-spinner {
    border-top-color: currentColor;
    animation: nrds-pulse 1.4s ease-in-out infinite;
  }
}

/* --- Boot loading state ------------------------------------------------------------------------- */
.nrds-boot {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  color: var(--panel-text-muted);
}

.nrds-boot__text {
  font-size: var(--text-md);
  font-weight: var(--weight-medium);
}

/* --- Modal dialog ------------------------------------------------------------------------------- */
.nrds-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 2500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  background-color: color-mix(in oklab, var(--modal-scrim) 55%, transparent);
}

.nrds-modal {
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: min(680px, calc(100vw - 32px));
  max-height: calc(100dvh - 32px);
  background-color: var(--modal-bg);
  color: var(--modal-text-color);
  border: 1px solid var(--modal-border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--elevation-map-control);
  overflow: hidden;
}

.nrds-modal--md {
  max-width: min(480px, calc(100vw - 32px));
}

.nrds-modal__header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: 10px 18px;
  border-bottom: 1px solid var(--modal-border-color);
}

.nrds-modal__title {
  margin: 0;
  font-size: var(--text-lg);
  font-weight: var(--weight-strong);
  line-height: 1.3;
}

.nrds-modal__close {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: none;
  margin-left: auto;
  min-width: 44px;
  min-height: 44px;
  padding: 0;
  border: none;
  border-radius: var(--radius-sm);
  background-color: transparent;
  color: var(--modal-text-color);
  cursor: pointer;
}

.nrds-modal__close:hover {
  background-color: var(--nav-button-hover-bg);
}

.nrds-modal__close:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

.nrds-modal__close svg {
  width: 20px;
  height: 20px;
}

.nrds-modal__body {
  padding: 18px;
  overflow-y: auto;
  font-size: var(--text-md);
  line-height: 1.6;
}

.nrds-modal__body p,
.nrds-modal__body li {
  max-width: 68ch;
}

.nrds-modal__body p {
  margin-top: 0;
  margin-bottom: 12px;
}

.nrds-modal__body p:last-child,
.nrds-modal__body ul:last-child {
  margin-bottom: 0;
}

.nrds-modal__body ul {
  margin: 0;
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.nrds-modal__body a {
  color: var(--link-color);
  text-decoration: underline;
  text-underline-offset: 2px;
  overflow-wrap: break-word;
}

.nrds-modal__body a:hover {
  text-decoration-thickness: 2px;
}

.nrds-modal__body a:focus-visible {
  outline: 2px solid var(--nav-pill-active-bg);
  outline-offset: 2px;
  border-radius: 2px;
}

.nrds-modal__footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-sm);
  padding: 12px 18px;
  border-top: 1px solid var(--modal-border-color);
}

.nrds-modal__actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-sm);
  width: 100%;
}

.nrds-modal__action {
  min-height: 44px;
  padding: 8px 16px;
  border: 1px solid var(--panel-border-color);
  border-radius: var(--radius-sm);
  background-color: var(--nav-pill-active-bg);
  color: var(--nav-pill-active-text-color);
  font-size: var(--text-md);
  font-weight: var(--weight-medium);
  cursor: pointer;
}

.nrds-modal__action:hover,
.nrds-modal__action:focus {
  filter: brightness(1.08);
}

.nrds-modal__action:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

/* --- Toasts ------------------------------------------------------------------------------------- */
.nrds-toast-host {
  position: fixed;
  top: calc(var(--ts-header-height) + 12px);
  right: 12px;
  z-index: 2800;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  max-width: min(360px, calc(100vw - 24px));
  pointer-events: none;
}

.nrds-toast {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 10px 12px;
  border: 1px solid var(--panel-border-color);
  border-radius: var(--radius-md);
  background-color: var(--map-panel-bg);
  color: var(--map-panel-text);
  box-shadow: var(--elevation-map-control);
  font-size: var(--text-sm);
  line-height: 1.35;
  pointer-events: auto;
}

.nrds-toast--success {
  border-color: var(--switch-active);
}

.nrds-toast--error {
  border-color: var(--status-failed-text);
  color: var(--status-failed-text);
  background-color: var(--status-failed-bg);
}

.nrds-toast__message {
  flex: 1 1 auto;
  min-width: 0;
}

.nrds-toast__close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  min-width: 28px;
  min-height: 28px;
  padding: 0;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: inherit;
  cursor: pointer;
}

.nrds-toast__close:hover {
  background-color: var(--nav-button-hover-bg);
}

.nrds-toast__close:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

.nrds-toast__close svg {
  width: 16px;
  height: 16px;
}

/* --- Error view -------------------------------------------------------------------------------- */
.nrds-error {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  background-color: var(--error-overlay-bg);
}

.nrds-error__box {
  max-width: 520px;
  padding: 28px 32px;
  border: 1px solid var(--panel-border-color);
  border-radius: var(--radius-md);
  background-color: var(--error-box-bg);
  color: var(--error-box-text-color);
  box-shadow: var(--elevation-map-control);
  text-align: center;
}

.nrds-error__title {
  margin: 0 0 12px;
  font-size: 1.75rem;
  font-weight: var(--weight-strong);
}

.nrds-error__message {
  margin: 0 0 12px;
  font-size: var(--text-md);
  line-height: 1.5;
}

.nrds-error__detail {
  margin: 0 0 20px;
  font-size: var(--text-sm);
  color: var(--panel-text-muted);
  word-break: break-word;
}

.nrds-error__action {
  min-height: 44px;
  padding: 8px 20px;
  border: 1px solid var(--panel-border-color);
  border-radius: var(--radius-sm);
  background-color: var(--nav-pill-active-bg);
  color: var(--nav-pill-active-text-color);
  font-size: var(--text-md);
  font-weight: var(--weight-medium);
  cursor: pointer;
}

.nrds-error__action:hover,
.nrds-error__action:focus {
  filter: brightness(1.08);
}

.nrds-error__action:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

/* --- Feature-id search box (U5d) ---------------------------------------------------------------- */
/* An accessible combobox in the navbar's search slot: a framed input with a typeahead listbox. */
.nrds-search {
  position: relative;
  display: flex;
  flex: 1 1 220px;
  min-width: 0;
  max-width: 32rem;
}

.nrds-search__box {
  display: flex;
  align-items: center;
  flex: 1 1 auto;
  min-width: 0;
  min-height: 36px;
  padding: 4px 6px 4px 10px;
  border: 1px solid var(--search-border);
  border-radius: 6px;
  background-color: var(--search-bg);
}

.nrds-search__icon {
  display: inline-flex;
  flex: 0 0 auto;
  margin-right: 8px;
  color: var(--muted-text);
  line-height: 0;
}

.nrds-search__icon svg {
  width: 16px;
  height: 16px;
}

.nrds-search__input {
  flex: 1 1 auto;
  min-width: 0;
  align-self: stretch;
  border: none;
  outline: none;
  background: transparent;
  color: var(--search-text);
  font-size: var(--text-md);
}

.nrds-search__input::placeholder {
  color: var(--search-placeholder);
}

.nrds-search__input:focus-visible {
  box-shadow: inset 0 0 0 2px var(--nav-pill-active-bg);
  border-radius: 3px;
}

.nrds-search__input[aria-invalid='true'] {
  color: var(--status-failed-text);
}

.nrds-search__input:disabled {
  cursor: default;
}

.nrds-search__submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  min-width: 32px;
  min-height: 28px;
  margin-left: 6px;
  padding: 2px 8px;
  border: none;
  border-radius: var(--radius-sm);
  background-color: var(--status-bg);
  color: var(--status-text);
  cursor: pointer;
}

.nrds-search__submit svg {
  width: 16px;
  height: 16px;
}

.nrds-search__submit:not(:disabled):hover {
  filter: brightness(1.25);
}

.nrds-search__submit:disabled {
  opacity: 0.5;
  cursor: default;
}

.nrds-search__submit:focus-visible {
  outline: 2px solid var(--nav-pill-active-bg);
  outline-offset: 2px;
}

.nrds-search__listbox {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  z-index: 1200;
  margin: 0;
  padding: 4px;
  max-height: 280px;
  overflow-y: auto;
  list-style: none;
  background: var(--select-menu-bg);
  border: 1px solid var(--select-control-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--elevation-map-control);
}

.nrds-search__option {
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--select-text-color);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: pointer;
}

.nrds-search__option.is-active,
.nrds-search__option[aria-selected='true'] {
  background: var(--select-option-hover-bg);
}

.nrds-search__notice {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1 1 auto;
  min-width: 0;
  padding: 6px 12px;
  border: 1px solid var(--panel-border-color);
  border-radius: var(--radius-sm);
  background-color: var(--status-failed-bg);
  color: var(--status-failed-text);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
}

.nrds-search__notice > span {
  min-width: 0;
}

.nrds-search__retry {
  flex: none;
  min-height: 32px;
  padding: 2px 10px;
  border: 1px solid currentColor;
  border-radius: var(--radius-sm);
  background-color: transparent;
  color: inherit;
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  cursor: pointer;
}

.nrds-search__retry:hover {
  background-color: var(--nav-button-hover-bg);
}

.nrds-search__retry:focus-visible {
  outline: 2px solid var(--nav-pill-active-bg);
  outline-offset: 2px;
}

/* --- Mobile feature sheet (U5d) ---------------------------------------------------------------- */
/* On a narrow viewport the selected feature's content lives in a bottom sheet instead of the
 * anchored popup. The sheet slides between an expanded height and a collapsed peek row, and the
 * body[data-sheet] state (set by feature-sheet.js) lifts the map controls and time dock clear of it. */
.nrds-feature-sheet {
  position: fixed;
  inset: auto 0 0 0;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  height: var(--sheet-height);
  padding: 6px 16px 16px;
  background-color: var(--background-color);
  color: var(--map-panel-text);
  border-top: 1px solid var(--panel-border-color);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  box-shadow: var(--elevation-map-control);
  transform: translateY(0);
  transition: transform 0.25s ease-out;
  overflow: hidden;
}

.nrds-feature-sheet.is-collapsed {
  transform: translateY(max(0px, calc(var(--sheet-height) - var(--sheet-peek))));
}

/* The sheet is a mobile-only surface; never let it show once the popup takes over. */
@media (min-width: 769px) {
  .nrds-feature-sheet {
    display: none;
  }
}

.nrds-feature-sheet__handle {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 100%;
  min-height: 28px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  touch-action: none;
}

.nrds-feature-sheet__grabber {
  width: 40px;
  height: 4px;
  border-radius: 2px;
  background: var(--panel-border-color);
}

.nrds-feature-sheet__handle:focus-visible {
  outline: 2px solid var(--nav-pill-active-bg);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.nrds-feature-sheet__header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex: 0 0 auto;
}

.nrds-feature-sheet__title {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
  font-size: var(--text-lg);
  font-weight: var(--weight-strong);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nrds-feature-sheet__collapse,
.nrds-feature-sheet__close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  min-width: 44px;
  min-height: 44px;
  padding: 8px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--map-panel-text);
  cursor: pointer;
}

.nrds-feature-sheet__collapse:hover,
.nrds-feature-sheet__close:hover {
  background: var(--nav-button-hover-bg);
}

.nrds-feature-sheet__collapse:focus-visible,
.nrds-feature-sheet__close:focus-visible {
  outline: 2px solid var(--nav-pill-active-bg);
  outline-offset: 2px;
}

.nrds-feature-sheet__collapse svg,
.nrds-feature-sheet__close svg {
  width: 20px;
  height: 20px;
}

/* Expanded: the chevron points down (minimise); collapsed: it points up (expand). */
.nrds-feature-sheet.is-collapsed .nrds-feature-sheet__collapse svg {
  transform: rotate(180deg);
}

.nrds-feature-sheet__body {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
}

.nrds-feature-sheet.is-collapsed .nrds-feature-sheet__body {
  visibility: hidden;
}

.nrds-feature-sheet .popup-header {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 8px 0 10px;
  font-size: var(--text-sm);
  line-height: 1.4;
  border-bottom: 1px solid var(--panel-border-color);
}

.nrds-feature-sheet .popup-row {
  display: flex;
  justify-content: space-between;
  gap: 6px;
}

.nrds-feature-sheet .popup-label {
  font-weight: 500;
  opacity: 0.8;
}

.nrds-feature-sheet .popup-value {
  font-family: var(--font-mono);
  word-break: break-all;
}

.nrds-feature-sheet__chart {
  position: relative;
  width: 100%;
  height: 240px;
  padding: 8px 0 0;
}

/* Lift the floating map controls and time dock clear of the sheet as it opens/collapses. */
@media (max-width: 768px) {
  body[data-sheet='expanded'] {
    --sheet-offset: var(--sheet-height);
    --map-controls-offset: calc(var(--sheet-height) + 24px);
  }

  body[data-sheet='collapsed'] {
    --sheet-offset: min(var(--sheet-peek), var(--sheet-height));
    --map-controls-offset: calc(min(var(--sheet-peek), var(--sheet-height)) + 24px);
  }

  .nrds-time-dock {
    transform: translate(-50%, calc(-1 * var(--sheet-offset, 0px)));
    transition: transform 0.25s ease-out;
  }

  .maplibregl-ctrl-bottom-right,
  .maplibregl-ctrl-bottom-left {
    transform: translateY(calc(-1 * var(--map-controls-offset, 0px)));
    transition: transform 0.25s ease-out;
  }

  .maplibregl-ctrl.maplibregl-ctrl-group button {
    width: 44px;
    height: 44px;
  }
}