/* --- THEME & BASE STYLES --- */
:root {
  /* Design System Colors */
  --str-primary-50: #f5fff2;
  --str-primary-100: #ecfee0;
  --str-primary-200: #dafec7;
  --str-primary-300: #c6fba3;
  --str-primary-400: #b3f78f;
  --str-primary-500: #96f26c;
  --str-primary-600: #50b358;
  --str-primary-700: #268a40;
  --str-primary-800: #1a5e2d;
  --str-primary-900: #0d331a;
  --str-secondary-50: #f9fcff;
  --str-secondary-100: #f2f8ff;
  --str-secondary-200: #d9ecff;
  --str-secondary-300: #b6e5ff;
  --str-secondary-400: #93ddff;
  --str-secondary-500: #70d6ff;
  --str-secondary-600: #009ec2;
  --str-secondary-700: #0082ae;
  --str-secondary-800: #00668a;
  --str-secondary-900: #004a66;
  --white: #ffffff;
  --black: #000000;
  --rose-400: #fb7185;
  --rose-600: #e11d48;
  --rose-800: #9f1239;
  --rose-950: #4c0519;
  --amber-400: #f59e0b;
  --amber-600: #d97706;
  --amber-800: #92400e;
  --amber-950: #451a03;
  --teal-400: #2dd4bf;
  --teal-600: #0d9488;
  --teal-800: #115e59;
  --teal-950: #042f2e;
  --grey-1000: #1a1918;
  --grey-950: #242321;
  --grey-900: #2d2b29;
  --grey-850: #393633;
  --grey-800: #44403d;
  --grey-750: #4f4a46;
  --grey-700: #5b5650;
  --grey-650: #67615a;
  --grey-600: #736c64;
  --grey-550: #7f776f;
  --grey-500: #8c8279;
  --grey-450: #978f86;
  --grey-400: #a49b93;
  --grey-350: #afa8a0;
  --grey-300: #bbb5ae;
  --grey-250: #c7c1bb;
  --grey-200: #d3cec9;
  --grey-150: #dfdcd8;
  --grey-100: #ebe9e6;
  --grey-50: #f7f6f5;

  /* UI Theme Mapping */
  --bg-main: var(--grey-950);
  --bg-primary: var(--grey-900);
  --bg-secondary: var(--grey-850);
  --bg-tertiary: var(--grey-800);
  --border-primary: var(--grey-800);
  --border-secondary: var(--grey-750);
  --text-primary: var(--grey-100);
  --text-secondary: var(--grey-450);
  --accent-primary: var(--str-secondary-500);
  --accent-secondary: var(--str-primary-500);
  --accent-danger: var(--rose-600);
  --accent-warning: var(--amber-400);
  --shadow: 0 5px 20px rgba(0, 0, 0, 0.4);

  /* State Colors */
  --state-selected-bg: rgba(112, 214, 255, 0.1);
  --state-selected-border: var(--accent-primary);
  --state-new-bg: rgba(80, 179, 88, 0.15);
  --state-new-border: var(--str-primary-600);
  --state-edit-bg: var(--state-selected-bg);
  --state-edit-border: var(--state-selected-border);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-primary);
  font-size: 14px;
  overflow: hidden;
  height: 100vh;
}

button,
input,
select {
  font-family: inherit;
  font-size: inherit;
  background: none;
  border: none;
  color: inherit;
}

/* Custom Checkbox */
input[type="checkbox"] {
  -webkit-appearance: none;
  appearance: none;
  background-color: transparent;
  margin: 0;
  font: inherit;
  color: var(--grey-400);
  width: 18px;
  height: 18px;
  border: 2px solid var(--grey-600);
  border-radius: 4px;
  transform: translateY(-0.075em);
  display: grid;
  place-content: center;
  cursor: pointer;
  transition: all 0.15s ease-out;
  flex-shrink: 0;
}
input[type="checkbox"]:hover {
  border-color: var(--grey-400);
}
input[type="checkbox"]::before {
  content: "";
  width: 10px;
  height: 10px;
  transform: scale(0);
  transition: 120ms transform ease-in-out;
  box-shadow: inset 1em 1em var(--bg-main);
  background-color: var(--bg-main);
  clip-path: polygon(14% 44%, 0 65%, 50% 100%, 100% 16%, 80% 0%, 43% 62%);
}
input[type="checkbox"]:checked {
  background-color: var(--accent-primary);
  border-color: var(--accent-primary);
}
input[type="checkbox"]:checked::before {
  transform: scale(1);
}

.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
}
.icon svg {
  width: 100%;
  height: 100%;
}
.icon svg path,
.icon svg rect,
.icon svg circle {
  transition: fill 0.2s, stroke 0.2s;
}

/* --- MAIN LAYOUT --- */
.app-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

.main-header {
  display: flex;
  align-items: center;
  padding: 0 24px;
  height: 60px;
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-primary);
  flex-shrink: 0;
  gap: 16px;
}
.header-title {
  font-size: 18px;
  font-weight: 600;
}
.search-bar {
  flex-grow: 1;
  display: flex;
  align-items: center;
  background-color: var(--grey-1000);
  border: 1px solid var(--grey-800);
  border-radius: 8px;
  padding: 0 12px;
}
.search-bar input {
  flex-grow: 1;
  height: 36px;
  padding: 0 8px;
  background: transparent;
  outline: none;
}
.search-bar .icon {
  color: var(--text-secondary);
}
.header-actions {
  display: flex;
  gap: 12px;
  align-items: center;
}
.main-btn {
  padding: 8px 16px;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 8px;
}
.btn-primary {
  background-color: var(--accent-primary);
  color: var(--bg-main);
}
.btn-primary:hover {
  opacity: 0.9;
}
.btn-secondary {
    background-color: rgba(0, 74, 102, 0.5);
    border: 1px solid rgba(0, 102, 138, 0.6);
    color: var(--str-secondary-500);
}
.btn-secondary:hover {
    background-color: rgba(0, 74, 102, 0.5);
    border: 1px solid rgba(0, 102, 138, 1);
}

.main-content {
  display: flex;
  flex-grow: 1;
  overflow: hidden;
}

/* --- PANELS --- */
.panel {
  display: flex;
  flex-direction: column;
  background-color: var(--bg-primary);
}
.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  height: 50px;
  border-bottom: 1px solid var(--border-primary);
  flex-shrink: 0;
  gap: 12px;
}
.panel-title {
  font-weight: 600;
  font-size: 16px;
  white-space: nowrap;
}
.panel-content {
  flex-grow: 1;
  overflow-y: auto;
  padding: 8px;
}

/* Left Panel: Categories */
.categories-panel {
  width: 280px;
  flex-shrink: 0;
  border-right: 1px solid var(--border-primary);
  transition: margin-left 0.3s ease;
}
.categories-panel.hidden {
  margin-left: -280px;
}
.category-panel-actions {
  display: flex;
  gap: 8px;
}
.category-panel-actions .icon-btn {
  display: none;
}
.category-panel-actions .icon-btn.visible {
  display: inline-flex;
}
.category-item {
  display: flex;
  align-items: center;
  padding: 8px;
  border-radius: 6px;
  user-select: none;
  margin-bottom: 4px;
  gap: 8px;
  border: 2px solid transparent;
  transition: background-color 0.15s, border-color 0.15s;
  cursor: pointer;
}
.category-item:hover {
  background-color: var(--bg-tertiary);
}
.category-item.active {
  background-color: var(--accent-primary);
  color: var(--bg-main);
  font-weight: 600;
  border-color: var(--accent-primary) !important;
}
.category-item.active .category-count,
.category-item.active:hover .category-count {
  background-color: rgba(0, 0, 0, 0.2);
  color: var(--text-primary);
  border: 1px solid rgba(0, 0, 0, 0.15);
}
.category-item.selected {
  background-color: var(--state-selected-bg);
  border-color: var(--state-selected-border);
}
.category-item .icon-btn {
  opacity: 0;
}
.category-item:hover .icon-btn,
.category-item.selected .icon-btn {
  opacity: 1;
}

/*Styling for the icons in the category item when active and hovered*/
.category-item.active .icon-btn[data-action="edit-category"] svg path {
  stroke: rgb(0 0 0 / 65%);
}

.category-item.active .icon-btn[data-action="delete-category"] svg path {
  fill: rgb(0 0 0 / 65%);
}

.category-item.active .icon-btn:hover{
  background: rgb(0 0 0 / 15%);
}

.category-item.active.editing .icon-btn[data-action="save-category"] svg path {
  fill: var(--str-primary-500);
}

.category-item.active.editing .icon-btn[data-action="delete-category"] svg path {
  fill: var(--rose-400);
}

.category-item.active.new-category .icon-btn[data-action="save-category"] svg path {
  fill: var(--str-primary-500);
}

.category-item.active.new-category .icon-btn[data-action="delete-category"] svg path {
  fill: var(--rose-400);
}

.category-item.new-category .icon-btn[data-action="save-category"] svg path {
  fill: var(--str-primary-500);
}

.category-item.new-category .icon-btn[data-action="delete-category"] svg path {
  fill: var(--rose-400);
}



.category-name {
  flex-grow: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.category-count {
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 10px;
  background-color: var(--grey-750);
  border: 1px solid var(--grey-650);
  color: white;
  transition: all 0.15s;
  margin-left: auto;
}
.category-actions {
  display: flex;
  gap: 4px;
}
.handle {
  cursor: grab;
  color: var(--grey-450);
}

.category-item.active > .handle{
    color: black;
}

.handle:active {
  cursor: grabbing;
}
.sortable-ghost {
  background-color: var(--bg-tertiary);
  opacity: 0.7;
  border: 2px dashed var(--accent-primary);
}
.sortable-chosen {
  background-color: var(--bg-tertiary);
}
.category-item.editing {
  background-color: var(--state-edit-bg);
  border-color: var(--state-edit-border);
  cursor: default;
}
.category-item.new-category {
  background-color: var(--state-new-bg);
  border-color: var(--state-new-border);
  cursor: default;
}
.category-name-input {
  background: none;
  border: none;
  outline: none;
  width: 100%;
  padding: 0;
  margin: 0;
  color: var(--text-primary);
  font-weight: 600;
}

/* Center Panel: Variables */
.variables-panel {
  flex: 1;
  background: var(--grey-1000);
}
.variables-panel-header .header-actions {
  flex-grow: 1;
  justify-content: flex-end;
}
.variables-panel-header .icon-btn {
  display: none;
}
.variables-panel-header .icon-btn.visible {
  display: inline-flex;
}
.variables-panel-header .view-toggle .icon-btn {
  display: inline-flex;
}
.variables-panel-header .view-toggle .icon-btn.active svg path,
.variables-panel-header .view-toggle .icon-btn.active svg rect {
  stroke: var(--accent-primary);
}
.variables-panel-header .view-toggle .icon-btn.active svg path[fill-rule] {
  fill: var(--accent-primary);
}

.variables-canvas {
  padding: 16px;
  flex-grow: 1;
  overflow-y: auto;
}

/* Variable Card Base & Shared */
.variable-card {
  background-color: var(--grey-900);
  border: 1px solid var(--grey-800);
  border-radius: 8px;
  user-select: none;
  cursor: pointer;
  transition: transform 0.2s, border-color 0.2s, background-color 0.2s;
}
.variable-card.selected {
  border-color: var(--state-selected-border);
  background-color: var(--state-selected-bg);
}
.variable-info {
  flex-grow: 1;
  min-width: 0;
}
.variable-name {
  font-family: "Courier New", Courier, monospace;
  font-weight: 600;
  white-space: nowrap;
  font-size: 15px;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 400px;
}
.variable-value {
  font-size: 0.85rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 2px;
  max-width: 500px;
}
.color-swatch {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  border: 2px solid var(--border-primary);
  flex-shrink: 0;
}
.variable-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}
.copy-btn {
  padding: 8px 14px;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  background-color: rgba(26, 94, 45, 0.30);
  border: 1px solid rgba(38, 138, 64, 0.4);
  color: var(--str-primary-500);
}
.copy-btn:hover {
  background-color: rgba(26, 94, 45, 0.40);
  border: 1px solid rgba(38, 138, 64, 0.6);
}

/* Grid Layout Specifics */
.layout-grid .variables-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 16px;
}
.layout-grid .variable-card {
  display: grid;
  padding: 8px 12px;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  gap: 4px 8px;
  align-items: center;
}
.layout-grid .variable-card:hover {
  transform: translateY(-2px);
}
.layout-grid .handle {
  display: none;
}
.layout-grid input[type="checkbox"] {
  grid-row: 1;
  grid-column: 1;
}
.layout-grid .variable-info {
  grid-row: 1;
  grid-column: 2;
}
.layout-grid .color-swatch {
  grid-row: 2;
  grid-column: 1;
}
.layout-grid .variable-actions {
  grid-row: 2;
  grid-column: 2;
  justify-self: start;
}
.layout-grid .copy-btn {
  grid-row: 2;
  grid-column: 2;
  justify-self: end;
}

/* Row Layout Specifics */
.layout-row .variables-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.layout-row .variable-card {
  display: flex;
  align-items: center;
  padding: 8px 12px;
  gap: 12px;
}
.layout-row .handle {
  display: inline-flex;
}
.layout-row .variable-info {
  margin-left: 20px;
}
.layout-row .variable-actions {
  margin-left: auto;
}

.icon-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  transition: background-color 0.2s, color 0.2s, stroke 0.2s;
}
.icon-btn svg {
  /*stroke: var(--text-secondary);*/
}
.icon-btn:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}
.icon-btn:hover svg {
  /* stroke: var(--text-primary); */
}
.icon-btn:hover svg path[fill] {
  fill: var(--grey-450);
}
.icon-btn svg path[fill] {
  fill: var(--text-secondary);
  transition: fill 0.2s;
}

/* Search View Specifics */
.search-results-container .category-group {
  margin-bottom: 2rem;
}
.search-results-container .category-title {
  font-size: 1.25rem;
  color: var(--accent-primary);
  border-bottom: 1px solid var(--border-secondary);
  padding-bottom: 0.5rem;
  margin-bottom: 1rem;
}

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-align: center;
  color: var(--text-secondary);
}
.empty-state h3 {
  font-size: 1.5rem;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}
.empty-state .actions {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

/* Right Panel: Properties */
.properties-panel {
  width: 320px;
  flex-shrink: 0;
  border-left: 1px solid var(--border-primary);
  display: none;
}
.properties-panel.visible {
  display: flex;
}
.prop-tabs {
  display: flex;
  border-bottom: 1px solid var(--border-primary);
}
.prop-tab {
  flex: 1;
  text-align: center;
  padding: 12px;
  cursor: pointer;
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}
.prop-tab.active {
  color: var(--accent-primary);
  border-bottom-color: var(--accent-primary);
}
.prop-content {
  padding: 16px;
}
.form-group {
  margin-bottom: 16px;
}
.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 8px;
}
.form-group input,
.form-group select {
  width: 100%;
  padding: 10px 12px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-secondary);
  border-radius: 6px;
  outline: none;
  transition: border-color 0.2s;
}
.form-group input:focus,
.form-group select:focus {
  border-color: var(--accent-primary);
}

/* --- MODALS --- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.3s;
}
.modal-overlay.visible {
  display: flex;
  opacity: 1;
}
.modal {
  background-color: var(--bg-primary);
  padding: 2rem;
  border-radius: 12px;
  width: 90%;
  max-width: 500px;
  box-shadow: var(--shadow);
  transform: scale(0.95);
  transition: transform 0.3s;
}
.modal-overlay.visible .modal {
  transform: scale(1);
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}
.modal-header h3 {
  font-size: 1.5rem;
}
.close-btn {
  font-size: 1.8rem;
  background: none;
  color: var(--text-secondary);
  cursor: pointer;
  line-height: 1;
}
.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
  margin-top: 2rem;
}
.value-input-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
#variable-color-picker {
  padding: 0;
  height: 40px;
  width: 40px;
  border-radius: 6px;
  cursor: pointer;
  border: 1px solid var(--border-secondary);
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-color: transparent;
}
#variable-color-picker::-webkit-color-swatch {
  border-radius: 5px;
  border: none;
}
#variable-color-picker::-moz-color-swatch {
  border-radius: 5px;
  border: none;
}
.upload-zone {
  border: 2px dashed var(--border-secondary);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
}
.upload-zone.drag-over {
  background-color: var(--bg-tertiary);
  border-color: var(--accent-primary);
}
.CodeMirror {
  border: 1px solid var(--border-secondary);
  border-radius: 6px;
  height: 300px;
}
#delete-confirm-details {
  max-height: 150px;
  overflow-y: auto;
  background: var(--bg-main);
  padding: 8px 12px;
  border-radius: 6px;
  margin-top: 1rem;
  font-family: monospace;
}
#delete-confirm-details ul {
  list-style: none;
  padding-left: 0;
}

/* --- Toast Notifications --- */
#toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1001;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.toast {
  padding: 12px 20px;
  border-radius: 8px;
  color: var(--black);
  font-weight: 600;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateX(120%);
  transition: all 0.4s cubic-bezier(0.215, 0.61, 0.355, 1);
}
.toast.show {
  opacity: 1;
  transform: translateX(0);
}
.toast.success {
  background-color: var(--str-primary-500);
}
.toast.error {
  background-color: var(--rose-400);
  color: var(--white);
}
.toast.info {
  background-color: var(--accent-primary);
  color: var(--bg-main);
}


/* Modern CSS Scrollbar Styling (Firefox 64+) */
* {
  /* Sets scrollbar width to thin across all elements */
  scrollbar-width: thin;
  /* Dark theme: thumb color (grey-700) and track color (grey-900) using CSS variables */
  scrollbar-color: var(--grey-700) var(--grey-900);
}

/* WebKit Scrollbar Styling (Chrome, Safari, Edge) */

/* Main scrollbar track - the background area where the scrollbar moves */
::-webkit-scrollbar {
  width: 8px;  /* Width for vertical scrollbars */
  height: 8px; /* Height for horizontal scrollbars */
}

/* The draggable scrolling handle/thumb */
::-webkit-scrollbar-thumb {
  background: var(--grey-700);    /* Dark grey thumb using CSS variable */
  border-radius: 4px;             /* Rounded corners for modern look */
  border: 1px solid var(--grey-900); /* Dark border using CSS variable */
}

/* Scrollbar thumb when being hovered over */
::-webkit-scrollbar-thumb:hover {
  background: var(--grey-600); /* Lighter grey on hover (assuming grey-600 is lighter than grey-700) */
}

/* Scrollbar thumb when being actively dragged */
::-webkit-scrollbar-thumb:active {
  background: var(--grey-500); /* Even lighter grey when actively dragging */
}

/* The track/background area of the scrollbar */
::-webkit-scrollbar-track {
  background: var(--grey-900);   /* Dark background using CSS variable */
  border-radius: 4px;            /* Rounded corners to match thumb */
}

/* The track when scrollbar is being hovered (optional enhancement) */
::-webkit-scrollbar-track:hover {
  background: var(--grey-800); /* Slightly lighter dark grey on hover */
}

/* Corner where horizontal and vertical scrollbars meet */
::-webkit-scrollbar-corner {
  background: var(--grey-900); /* Matches track color for consistency */
}

/* Specific styling for different scroll containers (optional) */

/* Thin scrollbars for sidebar or narrow containers */
.thin-scrollbar::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

/* Hidden scrollbars but still scrollable (use sparingly) */
.hidden-scrollbar {
  -ms-overflow-style: none;  /* IE and Edge */
  scrollbar-width: none;     /* Firefox */
}

.hidden-scrollbar::-webkit-scrollbar {
  display: none; /* Chrome, Safari, Opera */
}