/* Copyright (c) 2025 Jema Technology.
   Distributed under the license specified in the root directory of this project. */
:root {
  --disabled-opacity: 0.38;
  --header-height: 48px;
  --mdc-theme-secondary: #7376db;
  --settings-input-width: 55px;
  --tab-height: 36px;
}

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

body[theme="light"] {
  --ta-accent-color: rgb(0, 0, 0, 0.04);
  --ta-divider-color: var(--ta-accent-color);
  --ta-highlight-color: rgba(115, 118, 219, 0.18);
  --ta-background-color: white;

  --ta-mdc-icon-background-color: black;
  --ta-mdc-icon-color: var(--ta-ui-text-color);
  --ta-mdc-switch-off-thumb-color: #ececec;

  --ta-ui-text-color: black;
  --ta-ui-highlight-text-color: black;
  --ta-search-border-color: #e8eaed;
  --ta-search-button-divider-color: #dddddd;
  --ta-filename-text-color: #5f6368;

  --ta-editor-text-color: black;
  --ta-editor-line-number-text-color: #5f6368;
  --ta-editor-selection-color: #d9d9d9;
  --ta-editor-selection-focus-color: #d7d4f0;

  --ta-token-variable-color: black;
  --ta-token-definition-color: #00f;
  --ta-token-property-color: black;
  --ta-token-type-color: #219;
  --ta-token-builtin-color: #30a;
  --ta-token-variable-special-color: #00c;
  --ta-token-number-color: #164;
  --ta-token-string-color: #a11;
  --ta-token-string-special-color: #f50;
  --ta-token-atom-color: #219;
  --ta-token-keyword-color: #708;
  --ta-token-comment-color: #a50;
  --ta-token-invalid-background-color: inherit;
  --ta-token-invalid-color: #f00;
  --ta-token-meta-color: #555;
  --ta-token-tag-color: #170;
  --ta-token-attribute-color: #00c;
  --ta-token-attribute-value-color: var(--ta-token-string-color);
  --ta-token-heading-color: blue;
  --ta-token-quote-color: #090;
  --ta-token-link-color: #00c;
  --ta-token-url-color: var(--ta-token-string-color);
  --ta-token-inserted-color: #292;
  --ta-token-deleted-color: #d44;
  --ta-token-content-separator-color: #666;
}

body[theme="dark"] {
  --ta-accent-color: rgb(255, 255, 255, 0.12);
  --ta-divider-color: var(--ta-accent-color);
  --ta-highlight-color: rgba(115, 118, 219, 0.26);
  --ta-background-color: #1f1f1f;

  --ta-mdc-icon-background-color: white;
  --ta-mdc-icon-color: var(--ta-ui-text-color);
  --ta-mdc-switch-off-thumb-color: #b9b9b9;

  --ta-ui-text-color: #ebebeb;
  --ta-ui-highlight-text-color: white;
  --ta-search-border-color: var(--ta-divider-color);
  --ta-search-button-divider-color: var(--ta-search-border-color);
  --ta-filename-text-color: #bdc1c6;

  --ta-editor-text-color: #f8f8f2;
  --ta-editor-line-number-text-color: #bdc1c6;
  --ta-editor-selection-color: #49483e;
  --ta-editor-selection-focus-color: var(--ta-editor-selection-color);

  --ta-token-variable-color: #a6e22e;
  --ta-token-definition-color: #fd971f;
  --ta-token-property-color: #a6e22e;
  --ta-token-type-color: #ae81ff;
  --ta-token-variable-special-color: #9effff;
  --ta-token-builtin-color: #9fb4d6;
  --ta-token-number-color: #ae81ff;
  --ta-token-string-color: #e6db74;
  --ta-token-string-special-color: #e6db74;
  --ta-token-atom-color: #ae81ff;
  --ta-token-keyword-color: #f92672;
  --ta-token-comment-color: #75715e;
  --ta-token-invalid-background-color: #f92672;
  --ta-token-invalid-color: #f8f8f0;
  --ta-token-meta-color: #8f8f8f;
  --ta-token-tag-color: #f92672;
  --ta-token-attribute-color: #a6e22e;
  --ta-token-attribute-value-color: var(--ta-token-string-color);
  --ta-token-heading-color: var(--ta-token-string-color);
  --ta-token-quote-color: #f92672;
  --ta-token-link-color: #ae81ff;
  --ta-token-url-color: var(--ta-token-string-color);
  --ta-token-inserted-color: #292;
  --ta-token-deleted-color: #d44;
  --ta-token-content-separator-color: #888;
}

* {
  -webkit-transition: background-color 200ms;
}

/* Prevent white flash before theme JS runs: match system color scheme immediately */
@media (prefers-color-scheme: dark) {
  html:not([data-theme-init="light"]) body:not([theme="light"]) {
    background-color: #1f1f1f;
    color: #ebebeb;
  }
}

@media (prefers-color-scheme: light) {
  html:not([data-theme-init="dark"]) body:not([theme="dark"]) {
    background-color: white;
    color: black;
  }
}

/* data-theme-init applied by inline script before DOMContentLoaded */
html[data-theme-init="dark"] body {
  background-color: #1f1f1f;
  color: #ebebeb;
}

html[data-theme-init="light"] body {
  background-color: white;
  color: black;
}

body {
  font-family: "Helvetica Neue", Helvetica, Arial, "Open Sans", sans-serif;
  font-size: 13px;
  overflow: hidden;
  height: 100vh;
}

a {
  text-decoration: none;
  -webkit-user-drag: none;
}

img {
  -webkit-user-drag: none;
}

#window-container {
  display: flex;
  flex-direction: row;
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  -webkit-user-select: none;
}

#sidebar {
  background-color: var(--ta-background-color);
  border-right: 2px solid var(--ta-divider-color);
  color: var(--ta-ui-text-color);
  cursor: default;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  font-size: 120%;
  overflow: hidden;
  position: relative;
  -webkit-transition: width 0.2s ease-in-out, background-color 0.2s;
  width: 0;
}

#sidebar-resizer {
  cursor: e-resize;
  position: absolute;
  top: 0;
  bottom: 0;
  right: 0;
  width: 3px;
  z-index: 2;
}

#sidebar h1 {
  -webkit-app-region: drag;
  display: flex;
  flex-direction: column;
  font-size: 21px;
  font-weight: normal;
  height: var(--header-height);
  justify-content: center;
  margin: 0;
  padding: 0 20px;
  -webkit-user-select: none;
}

#sidebar h2 {
  align-items: center;
  display: flex;
  font: 500 13px "Roboto", sans-serif;
  letter-spacing: 1.2px;
  margin: 4px 8px;
  min-height: var(--tab-height);
  padding: 0 16px;
  text-transform: uppercase;
  white-space: nowrap;
}

#sidebar hr {
  background-color: var(--ta-divider-color);
  border: none;
  height: 2px;
  margin: 0;
}

#sidebar ul {
  padding: 0;
  list-style-type: none;
}

#sidebar li {
  border-radius: 100px;
  margin: 4px 8px;
}

.sidebar-button {
  align-items: center;
  background-color: transparent;
  border: none;
  border-radius: 100px;
  color: inherit;
  cursor: pointer;
  display: flex;
  font: inherit;
  margin: 0;
  min-height: var(--tab-height);
  padding: 0 16px;
  text-align: start;
  white-space: nowrap;
  width: 100%;
}

.sidebar-button:focus-visible {
  outline: 2px solid -webkit-focus-ring-color;
}

#sidebar input {
  background-color: var(--ta-accent-color);
}

#sidebar .group {
  margin: 24px 0;
}

#sidebar ::-webkit-scrollbar {
  width: 0;
}

#sidebar ::-webkit-scrollbar-track {
  background-color: transparent;
}

#sidebar ::-webkit-scrollbar-thumb {
  border-radius: 2px;
  background-color: #888;
}

#file-menu {
  margin: 24px 0;
}

#tabs-list-container, #settings-container {
  flex-grow: 1;
  height: auto;
  overflow-x: hidden;
  overflow-y: scroll;
}

#tabs-list {
  margin: 24px 0 24px 0;
  overflow-x: hidden;
  overflow-y: scroll;
  width: 100%;
}

#tabs-list li {
  align-items: center;
  display: flex;
  flex-direction: row;
  position: relative;
}

#tabs-list li.active,
#tabs-list li.active:hover {
  background-color: var(--ta-accent-color);
}

#tabs-list .filename {
  display: inline;
  flex: 1 1 auto;
  overflow: hidden;
  text-overflow: ellipsis;
}

#tabs-list .filename.unsaved:after {
  content: " *";
}

#tabs-list li > .close {
  display: none;
  font-size: 20px;
  height: var(--tab-height);
  justify-content: center;
  min-width: var(--tab-height);
  padding: 0;
  width: var(--tab-height);
}

#tabs-list li:hover > .close,
#tabs-list li.active > .close {
  align-items: center;
  display: flex;
  position: absolute;
  right: 8px;
  top: 0;
}

#tabs-list li:hover > .filename,
#tabs-list li.active > .filename {
  padding-right: var(--tab-height);
}

#file-tabs-menu {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  width: 100%;
}

.open-settings #file-tabs-menu {
  display: none;
}

#settings-menu {
  display: none;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  width: 100%;
  z-index: 1;
}

.open-settings #settings-menu {
  display: flex;
  flex-direction: column;
  left: 0;
}

#settings-list {
  width: 100%;
}

#settings-list li,
#settings-list .mdc-form-field {
  align-items: center;
  background-color: inherit;
  border-radius: 100px;
  cursor: pointer;
  -webkit-box-flex: 1.0;
  -webkit-box-orient: horizontal;
  -webkit-box-align: end;
  display: -webkit-flex;
  margin: 4px 8px;
  min-height: var(--tab-height);
  padding: 0;
  word-break: break-all;
  word-wrap: break-word;
}

#settings-list li:focus-within,
#settings-list .mdc-form-field:focus-within {
  outline: 2px solid -webkit-focus-ring-color;
}

#sidebar li:hover,
#settings-list .mdc-form-field:hover {
  background-color: var(--ta-highlight-color);
  color: var(--ta-ui-highlight-text-color);
}

.mdc-form-field {
  color: inherit;
  display: flex;
  font: inherit;
}

.mdc-radio {
  margin-left: auto;
  margin-right: auto;
}

.mdc-radio .mdc-radio__native-control:enabled:not(:checked)+.mdc-radio__background .mdc-radio__outer-circle  {
  border-color: white;
  opacity: 0.3;
}

/* TODO: Use CSS variables for these radio controls. */

body[theme="light"] .mdc-switch:not(.mdc-switch--checked) .mdc-switch__track {
  background-color: black;
  border-color: black;
  opacity: 0.26;
}

body[theme="light"] .mdc-radio .mdc-radio__native-control:enabled:not(:checked)+.mdc-radio__background .mdc-radio__outer-circle {
  border-color: black;
  opacity: 0.54;
}


#settings-list label {
  align-items: center;
  box-sizing: border-box;
  cursor: pointer;
  display: flex;
  flex: 1;
  margin: 0;
  max-width: calc(100% - var(--settings-input-width));
  min-height: var(--tab-height);
  overflow: hidden;
  padding: 4px 0 4px 16px;
  text-overflow: ellipsis;
  word-break: break-word;
  white-space: normal;
}

.settings-switch-ul {
  margin: 10px 0;
}

#settings-list input[type="text"] {
  -webkit-app-region: no-drag;
  border: 0px;
  border-radius: 100px;
  color: var(--ta-ui-text-color);
  font-size: 14px;
  height: var(--tab-height);
  padding: 0;
  text-align: center;
  -webkit-user-select: auto;
  width: var(--settings-input-width);
}

#settings-list li:hover input[type="text"] {
  background-color: inherit;
}

#settings-list input[type="text"]:focus {
  background-color: var(--ta-highlight-color);
  outline: none;
}

.mdc-switch {
  margin-left: auto;
  margin-right: auto;
}

.mdc-switch.mdc-switch--checked .mdc-switch__track {
  opacity: 0.26;
}

.mdc-switch:not(.mdc-switch--checked) .mdc-switch__thumb {
  border-color: var(--ta-mdc-switch-off-thumb-color);
}

.mdc-switch:not(.mdc-switch--checked) .mdc-switch__track {
  background-color: white;
  border-color: white;
  opacity: 0.3;
}

#main-container {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}

header {
  align-items: center;
  -webkit-app-region: drag;
  background-color: var(--ta-background-color);
  border-bottom: 2px solid var(--ta-divider-color);
  display: flex;
  flex-wrap: nowrap;
  height: var(--header-height);
  min-height: var(--header-height);
  padding-left: 10px;
  position: relative;
  -webkit-user-select: none;
  overflow: hidden;
}

.mdc-icon-button {
  color: var(--ta-ui-text-color);
  -webkit-app-region: no-drag;
}

.mdc-icon-button::before, .mdc-icon-button::after {
  background-color: var(--ta-mdc-icon-background-color);
}

header .mdc-icon-button {
  opacity: 0.54;
  -webkit-transition: opacity 200ms;
}

header .mdc-icon-button:focus, header .mdc-icon-button:active {
  opacity: 0.87;
}

#sidebar .mdc-icon-button {
  color: #FFF;
  opacity: .7;
}

#sidebar .mdc-icon-button:focus, #sidebar .mdc-icon-button:active {
  opacity: 1;
}

#sidebar .mdc-icon-button::before, #sidebar .mdc-icon-button::after {
  z-index: -1;
}

/* TODO: Use CSS variables for these buttons. */

body[theme="light"] #sidebar .icon,
body[theme="light"] #sidebar .mdc-icon-button {
  color: #000;
  opacity: .54;
}

body[theme="light"] #sidebar .mdc-icon-button:focus {
  opacity: .87;
}


#toggle-sidebar {
  margin: 0 5px;
}

.search-container {
  -webkit-app-region: no-drag;
  display: flex;
  border: 1px solid var(--ta-search-border-color);
  border-radius: 100px;
  background: var(--ta-background-color);
  height: 30px;
  line-height: 30px;
}

.search-container.disabled {
  opacity: var(--disabled-opacity);
}

#search-input-container {
  display: flex;
  width: 208px;
}

#search-input {
  background-color: transparent;
  border: none;
  color: var(--ta-ui-text-color);
  flex-grow: 1;
  font-size: 14px;
  padding-left: 16px;
  -webkit-user-select: auto;
  width: 150px;
}

#search-counting {
  color: #ccc;
  display: none;
  min-width: 70px;
  margin: 0 4px 0 -16px;
  text-align: right;
}

#search-counting.nomatches {
  color: #B00;
}

header.search-active #search-counting {
  display: block;
}

.search-navigation-button {
  border: 0;
  display: none;
  height: inherit;
  overflow: hidden;
  padding: 0;
  width: 0;
}

header.search-active .search-navigation-button.has-results {
  border-left: 1px solid var(--ta-search-button-divider-color);
  display: block;
  width: 30px;
}

.pwa-install-button {
  border: 0;
  display: none;
  height: inherit;
  overflow: hidden;
  padding: 0;
  width: 30px;
  color: var(--ta-accent-color);
  cursor: pointer;
}

.pwa-install-button:hover {
  color: var(--ta-highlight-color);
}

#title-filename[contenteditable="true"] {
  background: var(--ta-bg-color);
  border: 1px solid var(--ta-accent-color);
  cursor: text;
  max-width: 300px;
  outline: none;
  overflow: hidden;
  padding: 0 4px;
  text-align: center;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Color Picker Styling */
input[type="color"] {
  -webkit-appearance: none;
  border: none;
  width: 24px;
  height: 24px;
  border-radius: 4px; /* Rounded corners */
  padding: 0;
  background: none;
  cursor: pointer;
}

input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}

input[type="color"]::-webkit-color-swatch {
  border: 1px solid var(--ta-divider-color);
  border-radius: 4px;
}

/* Style the color picker popup itself (Chrome/Edge specific) */
::-webkit-color-swatch-wrapper {
  padding: 0;
}

::-webkit-color-swatch {
  border: none;
  border-radius: 4px;
}

/* Force dark mode for color picker popup if supported by browser */
body[theme="dark"] input[type="color"] {
  color-scheme: dark;
}

/* Try to style the popup window if the browser allows it */
input[type="color"]::-webkit-color-chooser {
  border-radius: 8px;
}

/* Sidebar filename editing */
.filename[contenteditable="true"] {
  background: var(--ta-background-color);
  border: 1px solid var(--ta-divider-color);
  border-radius: 4px;
  color: var(--ta-ui-text-color);
  cursor: text;
  outline: none;
  padding: 0 4px;
  text-align: center;
}

#title-filename {
  color: var(--ta-filename-text-color);
  display: flex;
  flex: 1;
  font-size: 15px;
  justify-content: center;
  overflow: hidden;
  text-overflow: ellipsis;
  -webkit-transition: all 200ms ease-in-out;
  white-space: nowrap;
  margin: 0 16px 0 21px; /* Add space around the title, 5px more on the left */
  min-width: 100px; /* Ensure title doesn't get too small */
}

#title-filename.unsaved:after {
  content: " *";
}

#open-shortcuts {
  justify-content: space-between;
}

#open-shortcuts .icon {
  font-size: 20px;
}

#window-minimize {
  /* Move the 'remove' icon down so it looks like a minimize icon */
  padding-top: 18px;
}

header.hide-controls #window-minimize {
  visibility: hidden;
}

header.hide-controls #window-maximize {
  visibility: hidden;
}

header.hide-controls #window-close {
  visibility: hidden;
}

#editor {
  flex: 1;
  min-height: 0;
  position: relative;
  overflow: hidden;
}

/* Markup below overrides default search input box styling. */
input[type=search] {
  -webkit-appearance:none;
}

input[type=search]:focus {
  border: 1px solid #15C;
  outline: none;
}

::-webkit-search-cancel-button,
::-webkit-search-decoration,
::-webkit-search-results-button,
::-webkit-search-results-decoration {
  display: none;
}

.mdc-icon-button::before {
  -webkit-transition: opacity 200ms;
}

/* Dialog */
#dialog-container {
  display: none;
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 4;
  -webkit-box-align: center;
  -webkit-box-pack: center;
}

#dialog-container.open {
  display: -webkit-box;
}

/* Currently this dialog is always light, unclear if this was intentional. */

.dialog-window {
  background-color: var(--ta-background-color);
  border: 1px solid var(--ta-divider-color);
  box-shadow: rgba(0,0,0,0.3) 0px 8px 30px;
  color: var(--ta-editor-text-color);
  max-width: 50%;
  opacity: 1.0;
  padding: 24px;
  border-radius: 12px;
}

.dialog-text {
  font-size: 15px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dialog-buttons {
  -webkit-box-align: center;
  -webkit-box-orient: horizontal;
  -webkit-box-pack: center;
  display: -webkit-box;
  margin-top: 20px;
}

.dialog-button {
  background-color: var(--ta-background-color);
  border: 1px solid var(--ta-divider-color);
  border-radius: 8px;
  -webkit-box-align: center;
  -webkit-box-orient: horizontal;
  -webkit-box-pack: center;
  color: var(--ta-editor-text-color);
  display: -webkit-box;
  height: 36px;
  margin: 0 5px;
  opacity: 0.9;
  padding: 0 16px;
  cursor: pointer;
  transition: all 0.2s;
}

.dialog-button:hover {
  background-color: var(--ta-highlight-color);
  border-color: var(--mdc-theme-secondary);
  color: var(--ta-editor-text-color);
  opacity: 1;
}

#editor .cm-editor {
  height: 100%;
  outline: none;
}

#editor .cm-editor .cm-search {
  display: none;
}

header.search-active ~ #editor div.cm-editor .cm-searchMatch {
  background-color: rgba(253, 207, 76, .5);
}

/* Responsive Design */
@media (max-width: 768px) {
  .format-toolbar {
    display: none !important; /* Hide format toolbar on tablets and smaller */
  }
  
  /* Ensure sidebar toggle is visible on mobile */
  #toggle-sidebar {
    display: flex !important;
    visibility: visible !important;
  }

  /* On tablets, shorten copyright */
  .status-copyright {
    font-size: 10px;
    padding: 0 6px;
  }
}

@media (max-width: 480px) {
  .search-container {
    display: none !important; /* Hide search on very small screens */
  }
  
  /* Ensure sidebar toggle button is always visible on mobile */
  #toggle-sidebar {
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
  }
  
  #sidebar {
    width: 100% !important; /* Full width sidebar on mobile */
    max-width: 100%;
    position: absolute;
    z-index: 10;
  }
  
  #sidebar-resizer {
    display: none;
  }

  /* Status bar on mobile: hide copyright, keep only essential info */
  .status-copyright {
    display: none !important;
  }

  /* Remove spacers so items align left/right */
  #status-bar .status-spacer {
    display: none !important;
  }

  /* Push encoding to the right */
  #status-encoding {
    margin-left: auto;
  }

  #status-bar {
    padding: 0 4px;
  }
}

/* ── Format toolbar ─────────────────────────────────────────────────────── */
.format-toolbar {
  display: flex;
  align-items: center;
  gap: 1px;
  flex-shrink: 0;
  margin-left: 4px;
}

.toolbar-divider {
  width: 1px;
  height: 16px;
  background: var(--ta-divider-color);
  margin: 0 4px;
  flex-shrink: 0;
}

/* Compact icon buttons inside the toolbar */
.toolbar-btn {
  width: 28px !important;
  height: 28px !important;
  padding: 0 !important;
  font-size: 16px !important;
  border-radius: 4px !important;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Toolbar selects (font family + heading) */
.toolbar-select {
  -webkit-app-region: no-drag;
  background: var(--ta-background-color);
  border: 1px solid var(--ta-divider-color);
  border-radius: 4px;
  color: var(--ta-ui-text-color);
  cursor: pointer;
  font-size: 12px;
  height: 26px;
  outline: none;
  padding: 0 4px;
  transition: border-color 0.15s;
  flex-shrink: 0;
}

.toolbar-select:hover {
  border-color: var(--ta-ui-text-color);
}

.toolbar-select:focus {
  border-color: #7376db;
}

/* Heading select — slightly wider for longer labels */
#heading-select.toolbar-select {
  width: 110px;
}


/* ── Full-width bottom status bar ───────────────────────────────────────── */
#status-bar {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  height: 22px;
  background-color: var(--ta-background-color);
  border-top: 1px solid var(--ta-divider-color);
  padding: 0;
  font-size: 11px;
  color: var(--ta-editor-line-number-text-color);
  user-select: none;
  -webkit-user-select: none;
  overflow: hidden;
  white-space: nowrap;
}

.status-copyright {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 10px;
  height: 100%;
  gap: 3px;
  flex-shrink: 0;
  font-size: 11px;
  color: var(--ta-editor-line-number-text-color);
  white-space: nowrap;
}

.status-copyright a {
  color: #5b64ea;
  text-decoration: none;
  font-weight: 600;
}

.status-copyright a:hover {
  text-decoration: underline;
  color: #7376db;
}

.status-spacer {
  flex: 1;
}

.status-item {
  display: flex;
  align-items: center;
  padding: 0 8px;
  height: 100%;
  cursor: default;
  transition: background-color 0.1s;
  flex-shrink: 0;
}

.status-item:hover {
  background-color: var(--ta-accent-color);
  color: var(--ta-ui-text-color);
}

.status-sep {
  width: 1px;
  height: 12px;
  background: var(--ta-divider-color);
  flex-shrink: 0;
}