@font-face {
	font-family: 'GlacialIndifference';
	font-style: normal;
	font-weight: normal;
	font-display: swap;
	src: url('fonts/GlacialIndifference-Regular.woff2') format('woff2'),
	     url('fonts/GlacialIndifference-Regular.otf') format('opentype');
}

@font-face {
	font-family: 'GlacialIndifference';
	font-style: normal;
	font-weight: bold;
	font-display: swap;
	src: url('fonts/GlacialIndifference-Bold.woff2') format('woff2'),
	     url('fonts/GlacialIndifference-Bold.otf') format('opentype');
}

@font-face {
	font-family: 'GlacialIndifference';
	font-style: italic;
	font-weight: normal;
	font-display: swap;
	src: url('fonts/GlacialIndifference-Italic.woff2') format('woff2'),
	     url('fonts/GlacialIndifference-Italic.otf') format('opentype');
}

:root {
  /* Primary palette (RGB triplets for use with rgba()) */
  --nsl-blue: 33, 113, 181;
  --nsl-blue-hover: 8, 81, 156;
  --nsl-blue-active: 8, 48, 107;

  /* Semantic colors (RGB triplets for use with rgba()) */
  --nsl-color-success: 40, 167, 69;
  --nsl-color-warning: 255, 193, 7;
  --nsl-color-error: 220, 53, 69;
  --nsl-color-neutral: 108, 117, 125;

  /* Grays */
  --nsl-gray-text: #333;
  --nsl-gray-muted: #999;
  --nsl-gray-border: #ccc;
  --nsl-gray-bg: #f5f5f5;
  --nsl-gray-divider: #e0e0e0;

  /* Spacing scale */
  --nsl-space-xs: 4px;
  --nsl-space-sm: 8px;
  --nsl-space-md: 16px;
  --nsl-space-lg: 24px;
  --nsl-space-xl: 32px;

  /* Border radius */
  --nsl-radius-sm: 4px;
  --nsl-radius-md: 6px;
  --nsl-radius-lg: 12px;

  /* Typography */
  --nsl-font-size-xs: 11px;
  --nsl-font-size-sm: 13px;
  --nsl-font-size-base: 16px;
  --nsl-font-size-lg: 20px;
  --nsl-font-size-xl: 28px;

  /* Font weights */
  --nsl-font-weight-normal: 400;
  --nsl-font-weight-bold: 700;

  /* Line heights */
  --nsl-line-height-tight: 1.2;
  --nsl-line-height-normal: 1.4;
  --nsl-line-height-relaxed: 1.6;

  /* Shadows */
  --nsl-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
  --nsl-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
  --nsl-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);

  /* Transitions */
  --nsl-transition: 0.15s ease;
}

html {
	font-family: 'GlacialIndifference', system-ui, -apple-system, sans-serif;
	font-size: 16px;
	margin: 0;
	padding: 0;
}

body {
	margin: 0;
	padding: 0;
}

h1, h2, h3 {
	text-align: center;
}

table {
	width: 100%;
}

/*
 * Semantic color utilities.
 * Each color is available as text (.nsl-success) and
 * background (.nsl-bg-success). Backgrounds use 15% opacity.
 */

.nsl-success { color: rgba( var(--nsl-color-success), 1 ); }
.nsl-warning { color: rgba( var(--nsl-color-warning), 1 ); }
.nsl-error   { color: rgba( var(--nsl-color-error), 1 ); }
.nsl-neutral { color: rgba( var(--nsl-color-neutral), 1 ); }

.nsl-bg-success { background: rgba( var(--nsl-color-success), 0.15 ); }
.nsl-bg-warning { background: rgba( var(--nsl-color-warning), 0.15 ); }
.nsl-bg-error   { background: rgba( var(--nsl-color-error), 0.15 ); }
.nsl-bg-neutral { background: rgba( var(--nsl-color-neutral), 0.15 ); }

/*
 * NSL.view.collection selectors and rules.
 */

.nsl-collection-container {
  overflow: auto;
  position: relative;
  height: 100%;
  width: 100%;
}

/*
 * NSL.view.dom.element.button selectors and rules.
 */

.nsl-element-button {
	background: rgba( var(--nsl-blue), 1 );
	color: white;
	cursor: pointer;
	display: inline-block;
	margin: 1px;
	border: none;
	font-family: inherit;
	font-size: inherit;
	line-height: inherit;
	padding: var(--nsl-space-sm);
	border-radius: var(--nsl-radius-sm);
	transition: background var(--nsl-transition);
	user-select: none;
}

.nsl-element-button:hover {
	background: rgba( var(--nsl-blue-hover), 1 );
}

.nsl-element-button:active {
	background: rgba( var(--nsl-blue-active), 1 );
}

.nsl-element-button:focus-visible {
  outline: 2px solid rgba( var(--nsl-blue), 0.6 );
  outline-offset: 2px;
}

.nsl-element-button.disabled,
.nsl-element-button[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/*
 * NSL.view.dom.element.input selectors and rules.
 */

.nsl-element-input {
  display: block;
  width: 100%;
  padding: var(--nsl-space-sm);
  font-family: inherit;
  font-size: var(--nsl-font-size-base);
  line-height: 1.4;
  color: var(--nsl-gray-text);
  background: #fff;
  border: 1px solid var(--nsl-gray-border);
  border-radius: var(--nsl-radius-sm);
  box-sizing: border-box;
  transition: border-color var(--nsl-transition), box-shadow var(--nsl-transition);
}

.nsl-element-input:focus {
  outline: none;
  border-color: rgba( var(--nsl-blue), 0.6 );
  box-shadow: 0 0 0 3px rgba( var(--nsl-blue), 0.15 );
}

.nsl-element-input:disabled {
  background: var(--nsl-gray-bg);
  color: var(--nsl-gray-muted);
  cursor: not-allowed;
}

.nsl-element-input.nsl-invalid {
  border-color: rgba( var(--nsl-color-error), 0.6 );
  box-shadow: 0 0 0 3px rgba( var(--nsl-color-error), 0.15 );
}

.nsl-element-input.nsl-valid {
  border-color: rgba( var(--nsl-color-success), 0.6 );
}

.nsl-element-textarea {
  display: block;
  width: 100%;
  padding: var(--nsl-space-sm);
  font-family: inherit;
  font-size: var(--nsl-font-size-base);
  line-height: 1.4;
  color: var(--nsl-gray-text);
  background: #fff;
  border: 1px solid var(--nsl-gray-border);
  border-radius: var(--nsl-radius-sm);
  box-sizing: border-box;
  resize: vertical;
  transition: border-color var(--nsl-transition), box-shadow var(--nsl-transition);
}

.nsl-element-textarea:focus {
  outline: none;
  border-color: rgba( var(--nsl-blue), 0.6 );
  box-shadow: 0 0 0 3px rgba( var(--nsl-blue), 0.15 );
}

.nsl-element-textarea:disabled {
  background: var(--nsl-gray-bg);
  color: var(--nsl-gray-muted);
  cursor: not-allowed;
}

.nsl-element-select {
  display: block;
  width: 100%;
  padding: var(--nsl-space-sm);
  font-family: inherit;
  font-size: var(--nsl-font-size-base);
  line-height: 1.4;
  color: var(--nsl-gray-text);
  background: #fff;
  border: 1px solid var(--nsl-gray-border);
  border-radius: var(--nsl-radius-sm);
  box-sizing: border-box;
  transition: border-color var(--nsl-transition), box-shadow var(--nsl-transition);
}

.nsl-element-select:focus {
  outline: none;
  border-color: rgba( var(--nsl-blue), 0.6 );
  box-shadow: 0 0 0 3px rgba( var(--nsl-blue), 0.15 );
}

.nsl-element-select:disabled {
  background: var(--nsl-gray-bg);
  color: var(--nsl-gray-muted);
  cursor: not-allowed;
}

.nsl-element-select.nsl-invalid {
  border-color: rgba( var(--nsl-color-error), 0.6 );
  box-shadow: 0 0 0 3px rgba( var(--nsl-color-error), 0.15 );
}

.nsl-element-select.nsl-valid {
  border-color: rgba( var(--nsl-color-success), 0.6 );
}

.nsl-element-textarea.nsl-invalid {
  border-color: rgba( var(--nsl-color-error), 0.6 );
  box-shadow: 0 0 0 3px rgba( var(--nsl-color-error), 0.15 );
}

.nsl-element-textarea.nsl-valid {
  border-color: rgba( var(--nsl-color-success), 0.6 );
}

/*
 * Cards
 */

.nsl-card {
  background: #fff;
  border: 1px solid var(--nsl-gray-divider);
  border-radius: var(--nsl-radius-md);
  overflow: hidden;
}

.nsl-card-header {
  padding: var(--nsl-space-sm) var(--nsl-space-md);
  font-weight: bold;
  border-bottom: 1px solid var(--nsl-gray-divider);
  background: rgba( var(--nsl-blue), 0.04 );
}

.nsl-card-body {
  padding: var(--nsl-space-md);
}

/*
 * Toast / notification
 */

.nsl-toast-container {
  position: fixed;
  top: var(--nsl-space-md);
  right: var(--nsl-space-md);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: var(--nsl-space-sm);
  pointer-events: none;
}

.nsl-toast {
  padding: var(--nsl-space-sm) var(--nsl-space-md);
  border-radius: var(--nsl-radius-md);
  font-size: var(--nsl-font-size-sm);
  color: #fff;
  background: rgba( var(--nsl-color-neutral), 1 );
  pointer-events: auto;
  opacity: 1;
  transition: opacity 0.3s ease;
}

.nsl-toast.nsl-toast-success { background: rgba( var(--nsl-color-success), 1 ); }
.nsl-toast.nsl-toast-warning { background: rgba( var(--nsl-color-warning), 1 ); color: var(--nsl-gray-text); }
.nsl-toast.nsl-toast-error   { background: rgba( var(--nsl-color-error), 1 ); }

.nsl-toast.nsl-toast-hiding {
  opacity: 0;
}

/*
 * NSL.view.dom.structure.stage selectors and rules.
 */

.nsl-structure-stage {
	box-sizing: border-box;
	bottom: 0;
	display: flex;
	flex-flow: column;
	left: 0;
	overflow: auto;
	position: absolute;
	right: 0;
	top: 0;
}

.nsl-structure-stage-bottom,
.nsl-structure-stage-middle,
.nsl-structure-stage-top {
	display: flex;
}

.nsl-structure-stage-center,
.nsl-structure-stage-left,
.nsl-structure-stage-right {
	overflow-y: auto;
}

.nsl-structure-stage-center,
.nsl-structure-stage-middle {
	flex: 1;
}

.nsl-title {
	text-align: center;
}

/*
 * Shared collection row/cell/header styles.
 * Used by both table and infinite scroll components.
 */

.nsl-collection-table-row,
.nsl-collection-infinitescroll-row {
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba( var(--nsl-blue), 0.1 );
  transition: background var(--nsl-transition);
}

.nsl-collection-table-row:hover,
.nsl-collection-infinitescroll-row:hover {
  background: rgba( var(--nsl-blue), 0.08 );
}

.nsl-collection-table-cell,
.nsl-collection-infinitescroll-cell {
  flex: 1 1 0;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding: 0 var(--nsl-space-sm);
}

.nsl-collection-table-header,
.nsl-collection-infinitescroll-header {
  display: flex;
  align-items: center;
  font-weight: bold;
  font-size: var(--nsl-font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 2px solid rgba( var(--nsl-blue), 0.2 );
  background: rgba( var(--nsl-blue), 0.06 );
}

.nsl-collection-table-header-cell,
.nsl-collection-infinitescroll-header-cell {
  flex: 1 1 0;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding: var(--nsl-space-sm);
}

/*
 * NSL.view.dom.collection.table selectors and rules.
 */

.nsl-collection-table-container {
  position: relative;
  width: 100%;
}

.nsl-collection-table-scroller {
  overflow: auto;
  position: relative;
}

.nsl-collection-table-spacer {
  position: relative;
  width: 100%;
}

.nsl-collection-table-viewport {
  position: absolute;
  left: 0;
  right: 0;
}

/*
 * NSL.view.dom.collection.infinitescroll selectors and rules.
 */

.nsl-collection-infinitescroll-container {
  display: block;
  position: relative;
  width: 100%;
  height: auto;
  overflow: visible;
}

.nsl-collection-infinitescroll-scroller {
  overflow: auto;
  position: relative;
}

.nsl-collection-infinitescroll-spacer {
  position: relative;
  width: 100%;
}

.nsl-collection-infinitescroll-viewport {
  position: absolute;
  left: 0;
  right: 0;
}

.nsl-collection-infinitescroll-sentinel {
  height: 1px;
  width: 100%;
}

.nsl-collection-infinitescroll-loading {
  text-align: center;
  padding: var(--nsl-space-md);
  color: rgba( var(--nsl-blue), 0.8 );
  font-size: var(--nsl-font-size-sm);
}

/*
 * NSL.view.dom.collection.tilegrid selectors and rules.
 */

.nsl-collection-tilegrid-container {
  display: block;
  position: relative;
  height: auto;
  overflow: visible;
}

.nsl-collection-tilegrid-scroller {
  overflow: auto;
  width: 100%;
  height: 100%;
}

.nsl-collection-tilegrid-spacer {
  position: relative;
}

.nsl-collection-tilegrid-viewport {
  position: absolute;
  top: 0;
  left: 0;
}

.nsl-collection-tilegrid-tile {
  position: absolute;
  box-sizing: border-box;
  border: 1px solid rgba( var(--nsl-blue), 0.15 );
  background: rgba( var(--nsl-blue), 0.05 );
  font-size: var(--nsl-font-size-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: background var(--nsl-transition);
}

.nsl-collection-tilegrid-tile:hover {
  background: rgba( var(--nsl-blue), 0.2 );
  border-color: rgba( var(--nsl-blue), 0.4 );
}

/*
 * Collection row selection.
 * Add 'selected' class to a row to highlight it.
 */

.nsl-collection-table-row.selected,
.nsl-collection-infinitescroll-row.selected {
  background: rgba( var(--nsl-blue), 0.15 );
}

.nsl-collection-tilegrid-tile.selected {
  background: rgba( var(--nsl-blue), 0.25 );
  border-color: rgba( var(--nsl-blue), 0.6 );
}

/*
 * Modal / dialog overlay.
 * The overlay covers the entire viewport.
 * The dialog box is centered inside.
 */

.nsl-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba( 0, 0, 0, 0.5 );
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  transition: opacity 0.2s ease;
}

.nsl-modal-overlay.nsl-modal-hiding {
  opacity: 0;
}

.nsl-modal {
  background: #fff;
  border-radius: var(--nsl-radius-md);
  box-shadow: var(--nsl-shadow-lg);
  max-width: 90vw;
  max-height: 90vh;
  overflow: auto;
  min-width: 300px;
}

.nsl-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--nsl-space-sm) var(--nsl-space-md);
  border-bottom: 1px solid var(--nsl-gray-divider);
  font-weight: var(--nsl-font-weight-bold);
}

.nsl-modal-body {
  padding: var(--nsl-space-md);
}

.nsl-modal-footer {
  padding: var(--nsl-space-sm) var(--nsl-space-md);
  border-top: 1px solid var(--nsl-gray-divider);
  display: flex;
  justify-content: flex-end;
  gap: var(--nsl-space-sm);
}

.nsl-modal-close {
  background: none;
  border: none;
  font-size: var(--nsl-font-size-lg);
  cursor: pointer;
  color: var(--nsl-gray-muted);
  padding: var(--nsl-space-xs);
  line-height: 1;
}

.nsl-modal-close:hover {
  color: var(--nsl-gray-text);
}

/*
 * Tabs.
 * A horizontal tab bar with content panes below.
 */

.nsl-tabs {
  display: flex;
  border-bottom: 2px solid var(--nsl-gray-divider);
  gap: 0;
}

.nsl-tab {
  flex: 1;
  text-align: center;
  padding: var(--nsl-space-sm) var(--nsl-space-md);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: color var(--nsl-transition), border-color var(--nsl-transition);
  color: var(--nsl-gray-muted);
  user-select: none;
}

.nsl-tab:hover {
  color: var(--nsl-gray-text);
}

.nsl-tab.active {
  color: rgba( var(--nsl-blue), 1 );
  border-bottom-color: rgba( var(--nsl-blue), 1 );
  font-weight: var(--nsl-font-weight-bold);
}

.nsl-tab:focus-visible {
  outline: 2px solid rgba( var(--nsl-blue), 0.6 );
  outline-offset: -2px;
}

.nsl-tab-pane {
  display: none;
  padding: var(--nsl-space-md);
}

.nsl-tab-pane.active {
  display: block;
}

/*
 * Pagination.
 * Numbered page controls with previous/next.
 */

.nsl-pagination {
  display: flex;
  align-items: center;
  gap: var(--nsl-space-xs);
  user-select: none;
}

.nsl-pagination-item {
  padding: var(--nsl-space-xs) var(--nsl-space-sm);
  border-radius: var(--nsl-radius-sm);
  cursor: pointer;
  transition: background var(--nsl-transition);
  font-size: var(--nsl-font-size-sm);
  background: none;
  border: none;
  font-family: inherit;
}

.nsl-pagination-item:hover {
  background: rgba( var(--nsl-blue), 0.1 );
}

.nsl-pagination-item.active {
  background: rgba( var(--nsl-blue), 1 );
  color: #fff;
}

.nsl-pagination-item.disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

/*
 * Avatar.
 * Circular image or initials placeholder.
 */

.nsl-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  overflow: hidden;
  background: rgba( var(--nsl-blue), 0.15 );
  color: rgba( var(--nsl-blue), 1 );
  font-weight: var(--nsl-font-weight-bold);
  flex-shrink: 0;
}

.nsl-avatar-sm  { width: 28px; height: 28px; font-size: var(--nsl-font-size-xs); }
.nsl-avatar-md  { width: 40px; height: 40px; font-size: var(--nsl-font-size-sm); }
.nsl-avatar-lg  { width: 56px; height: 56px; font-size: var(--nsl-font-size-lg); }

.nsl-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/*
 * Badge.
 * Small inline label for counts or status.
 */

.nsl-badge {
  display: inline-block;
  padding: 1px var(--nsl-space-xs);
  border-radius: 10px;
  font-size: var(--nsl-font-size-xs);
  font-weight: var(--nsl-font-weight-bold);
  line-height: var(--nsl-line-height-normal);
  background: rgba( var(--nsl-color-neutral), 0.15 );
  color: rgba( var(--nsl-color-neutral), 1 );
}

.nsl-badge-success {
  background: rgba( var(--nsl-color-success), 0.15 );
  color: rgba( var(--nsl-color-success), 1 );
}

.nsl-badge-warning {
  background: rgba( var(--nsl-color-warning), 0.15 );
  color: rgba( var(--nsl-color-warning), 1 );
}

.nsl-badge-error {
  background: rgba( var(--nsl-color-error), 0.15 );
  color: rgba( var(--nsl-color-error), 1 );
}

.nsl-badge-blue {
  background: rgba( var(--nsl-blue), 0.15 );
  color: rgba( var(--nsl-blue), 1 );
}

/*
 * Progress bar.
 * A container (.nsl-progress) with a fill (.nsl-progress-bar).
 * Set the width of .nsl-progress-bar as a percentage.
 */

.nsl-progress {
  height: 8px;
  background: var(--nsl-gray-bg);
  border-radius: var(--nsl-radius-sm);
  overflow: hidden;
}

.nsl-progress-bar {
  height: 100%;
  background: rgba( var(--nsl-blue), 1 );
  border-radius: var(--nsl-radius-sm);
  transition: width 0.3s ease;
}

.nsl-progress-bar.nsl-progress-success { background: rgba( var(--nsl-color-success), 1 ); }
.nsl-progress-bar.nsl-progress-warning { background: rgba( var(--nsl-color-warning), 1 ); }
.nsl-progress-bar.nsl-progress-error   { background: rgba( var(--nsl-color-error), 1 ); }

/*
 * File upload drop zone.
 */

.nsl-element-file {
  border: 2px dashed var(--nsl-gray-border);
  border-radius: var(--nsl-radius-md);
  padding: var(--nsl-space-lg);
  text-align: center;
  color: var(--nsl-gray-muted);
  cursor: pointer;
  transition: border-color var(--nsl-transition), background var(--nsl-transition);
}

.nsl-element-file:hover,
.nsl-element-file.nsl-dragover {
  border-color: rgba( var(--nsl-blue), 0.6 );
  background: rgba( var(--nsl-blue), 0.04 );
  color: var(--nsl-gray-text);
}

.nsl-element-file-preview {
  display: flex;
  flex-wrap: wrap;
  gap: var(--nsl-space-sm);
  margin-top: var(--nsl-space-sm);
}

.nsl-element-file-preview img {
  width: 64px;
  height: 64px;
  object-fit: cover;
  border-radius: var(--nsl-radius-sm);
  border: 1px solid var(--nsl-gray-divider);
}

/*
 * Form group.
 * A label + input + validation message wrapper.
 */

.nsl-form-group {
  margin-bottom: var(--nsl-space-md);
}

.nsl-form-label {
  display: block;
  margin-bottom: var(--nsl-space-xs);
  font-size: var(--nsl-font-size-sm);
  font-weight: var(--nsl-font-weight-bold);
  color: var(--nsl-gray-text);
}

.nsl-form-message {
  display: block;
  margin-top: var(--nsl-space-xs);
  font-size: var(--nsl-font-size-xs);
  color: var(--nsl-gray-muted);
}

.nsl-form-message.nsl-error {
  color: rgba( var(--nsl-color-error), 1 );
}

.nsl-form-message.nsl-success {
  color: rgba( var(--nsl-color-success), 1 );
}

/*
 * Markdown rendered content.
 */

.nsl-markdown {
  /* Rendered markdown joins block elements with "\n" (markdownToHTML); reset
     white-space so a pre-wrap container (e.g. .tp-feed-detail-text) does not
     turn those inter-block newlines into blank lines. The plain-text branch is
     NOT wrapped in .nsl-markdown, so it still inherits the container's
     white-space and keeps authored newlines. */
  white-space: normal;
}

.nsl-markdown p {
  margin: 0 0 var(--nsl-space-sm) 0;
  line-height: var(--nsl-line-height-relaxed);
}

.nsl-markdown code {
  background: var(--nsl-gray-bg);
  padding: 1px var(--nsl-space-xs);
  border-radius: var(--nsl-radius-sm);
  font-size: 0.9em;
}

.nsl-markdown pre {
  background: var(--nsl-gray-bg);
  padding: var(--nsl-space-sm);
  border-radius: var(--nsl-radius-sm);
  overflow-x: auto;
  margin: 0 0 var(--nsl-space-sm) 0;
  white-space: pre;
}

.nsl-markdown pre code {
  background: none;
  padding: 0;
}

.nsl-markdown a {
  color: rgba( var(--nsl-blue), 1 );
  text-decoration: none;
}

.nsl-markdown a:hover {
  text-decoration: underline;
}

.nsl-markdown ul,
.nsl-markdown ol {
  margin: 0 0 var(--nsl-space-sm) 0;
  padding-inline-start: var(--nsl-space-lg);
}

.nsl-markdown blockquote {
  margin: 0 0 var(--nsl-space-sm) 0;
  padding-inline-start: var(--nsl-space-md);
  border-inline-start: 3px solid rgba( var(--nsl-blue), 0.3 );
  color: var(--nsl-gray-muted);
}

/*
 * Drag and drop ghost / placeholder.
 */

.nsl-draggable {
  cursor: grab;
}

.nsl-draggable:active {
  cursor: grabbing;
}

.nsl-drag-placeholder {
  border: 2px dashed rgba( var(--nsl-blue), 0.3 );
  background: rgba( var(--nsl-blue), 0.04 );
  border-radius: var(--nsl-radius-sm);
}

/*
 * Responsive breakpoints.
 * On small screens, the stage layout stacks vertically
 * and left/right sidebars collapse.
 */

@media ( max-width: 768px ) {
  .nsl-structure-stage-middle {
    flex-direction: column;
  }

  .nsl-structure-stage-left,
  .nsl-structure-stage-right {
    width: 100%;
    max-height: 40vh;
  }

  .nsl-modal {
    min-width: auto;
    width: 95vw;
  }

  .nsl-tabs {
    overflow-x: auto;
  }

  .nsl-tab {
    white-space: nowrap;
    font-size: var(--nsl-font-size-sm);
  }
}

@media ( max-width: 480px ) {
  .nsl-structure-stage-left,
  .nsl-structure-stage-right {
    max-height: 30vh;
  }

  .nsl-modal {
    width: 98vw;
    max-height: 95vh;
  }

  .nsl-element-button {
    padding: var(--nsl-space-xs) var(--nsl-space-sm);
    font-size: var(--nsl-font-size-sm);
  }
}

/*
 * Button variants.
 * Secondary, danger, outline, and size modifiers.
 */

.nsl-element-button-secondary {
  background: var(--nsl-gray-bg);
  color: var(--nsl-gray-text);
  border: 1px solid var(--nsl-gray-border);
}

.nsl-element-button-secondary:hover {
  background: var(--nsl-gray-divider);
}

.nsl-element-button-secondary:active {
  background: var(--nsl-gray-border);
}

.nsl-element-button-danger {
  background: rgba( var(--nsl-color-error), 1 );
  color: #fff;
}

.nsl-element-button-danger:hover {
  background: rgba( var(--nsl-color-error), 0.85 );
}

.nsl-element-button-danger:active {
  background: rgba( var(--nsl-color-error), 0.7 );
}

.nsl-element-button-outline {
  background: transparent;
  color: rgba( var(--nsl-blue), 1 );
  border: 1px solid rgba( var(--nsl-blue), 0.4 );
}

.nsl-element-button-outline:hover {
  background: rgba( var(--nsl-blue), 0.08 );
  border-color: rgba( var(--nsl-blue), 0.6 );
}

.nsl-element-button-outline:active {
  background: rgba( var(--nsl-blue), 0.15 );
}

.nsl-element-button-sm {
  padding: var(--nsl-space-xs) var(--nsl-space-sm);
  font-size: var(--nsl-font-size-xs);
}

.nsl-element-button-lg {
  padding: var(--nsl-space-sm) var(--nsl-space-lg);
  font-size: var(--nsl-font-size-lg);
}

.nsl-element-button-icon {
  padding: var(--nsl-space-xs);
  line-height: 1;
  min-width: 32px;
  text-align: center;
}

/*
 * Breadcrumb navigation.
 * Horizontal trail with > separators.
 */

.nsl-breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--nsl-space-xs);
  font-size: var(--nsl-font-size-sm);
  color: var(--nsl-gray-muted);
  padding: var(--nsl-space-sm) 0;
}

.nsl-breadcrumb-item {
  cursor: pointer;
  color: rgba( var(--nsl-blue), 1 );
  text-decoration: none;
}

.nsl-breadcrumb-item:hover {
  text-decoration: underline;
}

.nsl-breadcrumb-item:last-child {
  color: var(--nsl-gray-text);
  font-weight: var(--nsl-font-weight-bold);
  cursor: default;
}

.nsl-breadcrumb-item:last-child:hover {
  text-decoration: none;
}

.nsl-breadcrumb-item + .nsl-breadcrumb-item::before {
  content: '>';
  margin-inline-end: var(--nsl-space-xs);
  color: var(--nsl-gray-muted);
  cursor: default;
}

/*
 * Action bar.
 * Horizontal button group with gap.
 */

.nsl-action-bar {
  display: flex;
  align-items: center;
  gap: var(--nsl-space-sm);
  flex-wrap: wrap;
}

.nsl-action-bar-right {
  justify-content: flex-end;
}

/*
 * Empty state.
 * Centered message when a list has no content.
 */

.nsl-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--nsl-space-xl) var(--nsl-space-md);
  text-align: center;
  color: var(--nsl-gray-muted);
}

.nsl-empty-state-icon {
  font-size: 48px;
  margin-bottom: var(--nsl-space-md);
  opacity: 0.5;
}

.nsl-empty-state-title {
  font-size: var(--nsl-font-size-lg);
  font-weight: var(--nsl-font-weight-bold);
  color: var(--nsl-gray-text);
  margin-bottom: var(--nsl-space-xs);
}

.nsl-empty-state-description {
  font-size: var(--nsl-font-size-sm);
  max-width: 360px;
  line-height: var(--nsl-line-height-relaxed);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
  }
}