html, body {
  padding: 0;
  margin: 0;
}

/* Layout */
section.layout {
  height: 100vh;
  width: 100vw;
  display: grid;
  grid:
    "header" auto
    "main" 1fr
    "footer" auto
    / 1fr;
}

header {
  grid-area: header;
}

section.main {
  grid-area: main;
  display: grid;
  grid:
    "tree content properties history" auto
    / auto 1fr auto auto;
}

aside e2-collapsible-panel {
  --panel-padding: 0;
  height: 100%;
}

aside.tree {
  grid-area: tree;
}

aside.tree e2-tree-view {
  height: 100%;
}

section.content {
  grid-area: content;
  position: relative;
  width: 100%;
  height: 100%;
}

section.content #editor-canvas {
  position: absolute;
}

e2-app[theme="light"] section.content #editor-canvas {
  border: 1px solid #ccc;
}

e2-app[theme="dark"] section.content #editor-canvas {
  border: 1px solid #333;
}

aside.properties {
  grid-area: properties;
}

aside.properties .properties-container {
  max-height: calc(100vh - 110px);
  overflow-y: auto;
}

aside.history {
  grid-area: history;
}

aside.history e2-collapsible-panel {
  --panel-collapsed-icon: '↩️';
}

aside.history e2-list-view {
  max-height: calc(100vh - 110px);
  overflow-y: auto;
  --header-visible: 'no';
}

footer {
  grid-area: footer;
}

#settings-editor {
  width: 60vw;
  height: 60vh;
}

#particle-options-json-editor,
#emission-options-json-editor {
  width: 100%;
  height: 100%;
}

/* Toolbar and context menu buttons */
e2-toolbar-separator,
e2-toolbar-button,
e2-toolbar-menu {
  display: flex;
}

e2-toolbar-separator.hidden,
e2-toolbar-button.hidden,
e2-toolbar-menu.hidden {
  display: none;
}

e2-context-menu-item,
e2-context-menu-menu,
e2-context-menu-separator {
  display: flex;
}

e2-context-menu-item.hidden,
e2-context-menu-menu.hidden,
e2-context-menu-separator.hidden {
  display: none;
}

/* Theme switch */
.theme-switch {
  margin: 5px;
  position: absolute;
  right: 0;
  display: inline-block;
  width: 50px;
  height: 26px;
}

.theme-switch input {display:none;}

.theme-switch .slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: 16px;
  background-color: #ccc;
  transition: .4s;
}

.theme-switch .slider:before {
  position: absolute;
  content: attr(data-off);
  line-height:22px;
  width: 22px;
  border-radius: 11px;
  left: 2px;
  bottom: 2px;
  background-color: rgb(240, 240, 240);
  transition: .4s;
  text-align: center;
}

.theme-switch input:checked + .slider {
  background-color: #27669b;
}

.theme-switch input:checked + .slider:before {
  content: attr(data-on);
  transform: translateX(24px);
  background-color: rgb(45, 45, 45);
}

/* Scrollbars */
*::-webkit-scrollbar {
  height: 10px;
  width: 10px;
}

e2-app[theme="light"] *::-webkit-scrollbar-track {
  border-radius: 0px;
  background-color: #ffffff;
}

e2-app[theme="light"] *::-webkit-scrollbar-track:hover,
e2-app[theme="light"] *::-webkit-scrollbar-track:active {
  background-color: #ffffff;
}

e2-app[theme="light"] *::-webkit-scrollbar-thumb {
  border-radius: 0px;
  background-color: #8E8E8E;
}

e2-app[theme="light"] *::-webkit-scrollbar-thumb:hover,
e2-app[theme="light"] *::-webkit-scrollbar-thumb:active {
  background-color: #BEBEBE;
}

e2-app[theme="dark"] *::-webkit-scrollbar-track {
  border-radius: 0px;
  background-color: #1E1E1E;
}

e2-app[theme="dark"] *::-webkit-scrollbar-track:hover,
e2-app[theme="dark"] *::-webkit-scrollbar-track:active {
  background-color: #1E1E1E;
}

e2-app[theme="dark"] *::-webkit-scrollbar-thumb {
  border-radius: 0px;
  background-color: #5F5F5F;
}

e2-app[theme="dark"] *::-webkit-scrollbar-thumb:hover,
e2-app[theme="dark"] *::-webkit-scrollbar-thumb:active {
  background-color: #9E9E9E;
}

/* Options Dialog Shared Styles */
.options-dialog-container {
  display: flex;
  gap: 20px;
  height: 600px;
  min-width: 900px;
}

.options-dialog-docs {
  flex: 0 0 350px;
  overflow-y: auto;
  padding: 15px;
  background: var(--bg-secondary, #2d2d30);
  border-radius: 4px;
}

.options-dialog-docs h3 {
  margin-top: 0;
  color: var(--text-primary, #e6edf3);
}

.options-dialog-docs h4 {
  margin-top: 15px;
  margin-bottom: 5px;
  color: var(--text-primary, #e6edf3);
}

.options-dialog-docs p,
.options-dialog-docs ul {
  margin: 5px 0;
  color: var(--text-secondary, #cccccc);
}

.options-dialog-docs ul {
  padding-left: 20px;
}

.options-dialog-docs code {
  background: var(--bg-tertiary, #3e3e42);
  padding: 2px 6px;
  border-radius: 3px;
  font-family: 'Courier New', monospace;
  font-size: 0.9em;
}

.options-dialog-docs pre {
  background: var(--bg-tertiary, #3e3e42);
  padding: 10px;
  border-radius: 4px;
  overflow-x: auto;
  margin: 10px 0;
}

.options-dialog-docs pre code {
  background: none;
  padding: 0;
}

.options-dialog-docs h5 {
  margin-top: 12px;
  margin-bottom: 5px;
  color: var(--text-primary, #e6edf3);
  font-size: 0.95em;
}

.options-dialog-editor {
  flex: 1 0 350px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.options-dialog-editor textarea {
  flex: 1;
  border: 1px solid var(--border-color, #3e3e42);
  border-radius: 4px;
  background: #1e1e1e;
  color: #d4d4d4;
  font-family: 'Courier New', monospace;
  font-size: 13px;
  padding: 10px;
  resize: none;
  outline: none;
}

.options-dialog-editor textarea:focus {
  border-color: #0e639c;
}

#particle-options-dialog [slot="footer"] {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

#particle-options-dialog [slot="footer"] button {
  padding: 8px 20px;
  cursor: pointer;
  border: none;
  border-radius: 4px;
  background: var(--button-bg, #0e639c);
  color: var(--button-text, #ffffff);
  font-size: 14px;
}

#particle-options-dialog [slot="footer"] button:hover {
  background: var(--button-hover-bg, #1177bb);
}

#particle-options-cancel-button {
  background: var(--bg-tertiary, #3e3e42) !important;
}

#particle-options-cancel-button:hover {
  background: var(--bg-secondary, #4e4e52) !important;
}