html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background: #2f2f2f;
  font-family: Arial, "Microsoft YaHei", sans-serif;
  color: #cfcfcf;
}

* {
  box-sizing: border-box;
}

#rootContainer {
  display: grid;
  grid-template-rows: 40px 1fr 36px;
  grid-template-areas:
    "top"
    "workspace"
    "bottom";
  width: 100%;
  height: 100vh;
  height: 100dvh;
  background: #2f2f2f;
  position: relative;
}

#rootContainer.immersiveFullscreen {
  grid-template-rows: 1fr;
  grid-template-areas: "workspace";
}

#rootContainer.immersiveFullscreen .topBar,
#rootContainer.immersiveFullscreen #bottomBar {
  position: fixed;
  left: 0;
  right: 0;
  z-index: 120;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

#rootContainer.immersiveFullscreen .topBar {
  top: 0;
}

#rootContainer.immersiveFullscreen #bottomBar {
  bottom: 0;
}

#rootContainer.immersiveFullscreen .topBar.immersiveChromeVisible,
#rootContainer.immersiveFullscreen #bottomBar.immersiveChromeVisible {
  opacity: 1;
  pointer-events: auto;
}

.centerWorkspace {
  grid-area: workspace;
  display: grid;
  grid-template-columns: minmax(0, 1fr) max-content;
  grid-template-rows: 1fr;
  min-width: 0;
  min-height: 0;
  position: relative;
}

#rootContainer.immersiveFullscreen .centerWorkspace {
  display: block;
  position: relative;
  height: 100%;
  min-height: 0;
}

#rootContainer.immersiveFullscreen #canvasWrap {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

#rootContainer.immersiveFullscreen #rightDock {
  position: fixed;
  top: 0;
  right: 0;
  height: 100vh;
  height: 100dvh;
  z-index: 288;
  transform: translateX(100%);
  transition: transform 0.22s ease;
  grid-area: unset;
}

#rootContainer.immersiveFullscreen #rightDock.immersiveDockVisible {
  transform: translateX(0);
}

.immersiveRightEdgeStrip {
  display: none;
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 22px;
  z-index: 115;
}

#rootContainer.immersiveFullscreen .immersiveRightEdgeStrip {
  display: block;
}

.immersiveEdgeStrip {
  display: none;
  position: fixed;
  left: 0;
  right: 0;
  height: 10px;
  z-index: 115;
}

#rootContainer.immersiveFullscreen .immersiveEdgeStrip {
  display: block;
}

.immersiveTopEdgeStrip {
  top: 0;
}

.immersiveBottomEdgeStrip {
  bottom: 0;
}

#rootContainer .topBar {
  grid-area: top;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 8px;
  min-width: 0;
  position: relative;
  z-index: 200;
  background: #3c3c3c;
  border-bottom: 1px solid #4d4d4d;
}

.appIconSlot {
  flex: 0 0 40px;
  width: 40px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  color: #8ecbff;
  background: rgba(0, 0, 0, 0.2);
  font-size: 17px;
  line-height: 1;
  user-select: none;
}

.appIconGlyph {
  width: 20px;
  height: 20px;
}

.topMenubar {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 0 1 auto;
  min-width: 0;
}

.topMenu {
  position: relative;
}

.topMenu > summary {
  list-style: none;
  height: 28px;
  padding: 0 12px;
  border: 1px solid transparent;
  border-radius: 4px;
  color: #e8e8e8;
  background: transparent;
  font-size: 13px;
  line-height: 26px;
  cursor: pointer;
  white-space: nowrap;
}

.topMenu > summary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.12);
}

.topMenu > summary::-webkit-details-marker {
  display: none;
}

.topMenu[open] > summary {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.18);
}

.topDropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  min-width: 168px;
  padding: 6px;
  border-radius: 6px;
  background: rgba(28, 30, 35, 0.98);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
  z-index: 300;
}

.topDropdown::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -6px;
  height: 6px;
}

.topDropdown button {
  display: block;
  width: 100%;
  text-align: left;
  padding: 7px 10px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: #e6e6e6;
  font-size: 12px;
  cursor: pointer;
}

.topDropdown button:hover {
  background: rgba(255, 255, 255, 0.08);
}

.topBarCenter {
  flex: 1 1 auto;
  min-width: 0;
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.topBarSpacer {
  flex: 0 0 8px;
}

.topBarTrailing {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.toolBtn {
  height: 28px;
  padding: 0 10px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: #4a4d52;
  color: #e8e8e8;
  font-size: 12px;
  cursor: pointer;
}

.toolBtn.secondary:hover {
  background: #5a5d62;
}

#sceneJsonModal,
#helpAboutModal {
  position: fixed;
  inset: 0;
  z-index: 12000;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(12, 12, 12, 0.62);
}

#sceneJsonModal.visible,
#helpAboutModal.visible {
  display: flex;
}

.sceneJsonDialog {
  width: min(92vw, 980px);
  max-height: 84vh;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: #22272e;
  color: #d7dce2;
  display: flex;
  flex-direction: column;
}

.sceneJsonDialogHeader {
  padding: 10px 12px;
  font-size: 14px;
  font-weight: 600;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.sceneJsonDialogActions {
  display: flex;
  gap: 6px;
}

#sceneJsonContent {
  flex: 1 1 auto;
  min-height: 280px;
  margin: 0;
  padding: 10px 12px;
  border: none;
  background: #1c2128;
  color: #e6edf3;
  font-family: Consolas, "Courier New", monospace;
  font-size: 12px;
  line-height: 1.45;
  resize: vertical;
}

.helpAboutDialog {
  width: min(92vw, 420px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: #22272e;
  color: #d7dce2;
  box-shadow: 0 18px 32px rgba(0, 0, 0, 0.4);
}

.helpAboutHeader {
  padding: 10px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  background: #2d333b;
  font-size: 13px;
  font-weight: 700;
}

.helpAboutFooter {
  display: flex;
  justify-content: flex-end;
  padding: 10px 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.miniBtn {
  padding: 5px 12px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: #353a42;
  color: #e8e8e8;
  font-size: 12px;
  cursor: pointer;
}

#rootContainer .topBar h1 {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.topBarBtn {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: #353a42;
  color: #e8e8e8;
  cursor: pointer;
  flex-shrink: 0;
}

.rightDock {
  grid-column: 2;
  display: flex;
  flex-direction: row;
  align-items: stretch;
  justify-content: flex-end;
  height: 100%;
  min-height: 0;
  width: 0;
  min-width: 0;
  max-width: 238px;
  overflow: hidden;
  transition: width 0.18s ease, min-width 0.18s ease;
}

#rootContainer.immersiveFullscreen .rightDock {
  max-width: 238px;
}

#rootContainer.rightPanelOpen .rightDock {
  width: 238px;
  min-width: 238px;
}

.rightDockPanel {
  flex: 1 1 220px;
  min-width: 0;
  max-width: 220px;
  overflow: hidden;
  border-left: 1px solid #414141;
}

#rightPanel.sidePanel.rightDockPanel {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

#rootContainer:not(.rightPanelOpen) .rightDockPanel {
  flex: 0 0 0;
  max-width: 0;
  padding-left: 0;
  padding-right: 0;
  overflow: hidden;
  border-left-width: 0;
  visibility: hidden;
}

.sidePanel {
  overflow: auto;
  padding: 6px 8px;
  background: #2f2f2f;
}

.panelCard {
  margin-bottom: 8px;
  padding: 6px;
  background: #3d3d3d;
  border-radius: 3px;
}

.playlistPanelCard {
  flex: 1 1 0;
  display: flex;
  flex-direction: column;
  min-height: 0;
  margin-bottom: 0;
}

.playlistPanelHeader {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
  flex-shrink: 0;
}

.playlistPanelHeader .panelTitle {
  margin: 0;
}

#playlistClearBtn {
  flex-shrink: 0;
}

#canvasWrap {
  position: relative;
  min-width: 0;
  min-height: 0;
  background: #1a1c20;
}

#canvasContainer {
  display: block;
  width: 100%;
  height: 100%;
}

#rightPanel {
  display: none;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  background: #2a2e34;
  border-left: 1px solid rgba(255, 255, 255, 0.08);
}

#rootContainer.rightPanelOpen #rightPanel {
  display: flex;
}

.panelTitle {
  padding: 10px 12px;
  font-size: 13px;
  font-weight: 600;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.playlistList,
#playlistList {
  flex: 1 1 0;
  min-height: 120px;
  max-height: 48vh;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.playlistRow {
  display: block;
  width: 100%;
  text-align: left;
  margin: 0 0 4px;
  padding: 8px 10px;
  border: 1px solid transparent;
  border-radius: 4px;
  background: #32373f;
  color: #ddd;
  cursor: pointer;
  font-size: 12px;
}

.playlistRow:hover {
  background: #3b414b;
}

.playlistRowActive {
  border-color: rgba(64, 158, 255, 0.55);
  background: rgba(64, 158, 255, 0.22);
  color: #fff;
}

.playlistEmpty {
  padding: 12px;
  color: #888;
  font-size: 12px;
}

.bottomBar {
  grid-area: bottom;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 10px;
  gap: 10px;
  background: #3c3c3c;
  border-top: 1px solid #4d4d4d;
  flex-shrink: 0;
  min-height: 36px;
}

.bottomBarTransport {
  grid-column: 2;
  justify-self: center;
  display: flex;
  align-items: center;
  gap: 10px;
}

.bottomBarTrailing {
  grid-column: 3;
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 8px;
}

.volumeControl {
  display: flex;
  align-items: center;
  gap: 6px;
}

.volumeControl .volumeBtn {
  min-width: 32px;
  padding: 0 8px;
}

.volumeControl input[type="range"] {
  width: 88px;
  height: 4px;
  margin: 0;
  accent-color: #409eff;
  cursor: pointer;
}

.transportBtn {
  min-width: 36px;
  height: 30px;
  padding: 0 10px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 4px;
  color: #fff;
  background: #409eff;
  cursor: pointer;
  font-size: 15px;
  line-height: 1;
  font-family: "Segoe UI Symbol", "Noto Sans Symbols2", "Apple Symbols", sans-serif;
}

.transportBtn:hover {
  background: #66b1ff;
}

.transportBtn.secondary {
  background: #606266;
}

.transportBtn.secondary:hover {
  background: #7a7c80;
}

.transportBtn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.playlistAddMenu {
  position: relative;
}

.topBarTrailing .playlistAddMenu {
  margin-top: 0;
}

.playlistAddSummary {
  list-style: none;
  box-sizing: border-box;
}

.topBarTrailing .playlistAddSummary {
  width: auto;
  min-width: 52px;
  height: 28px;
  line-height: 26px;
  margin: 0;
}

.playlistAddSummary::-webkit-details-marker {
  display: none;
}

.playlistAddDropdown {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.topBarTrailing .playlistAddDropdown {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  left: auto;
  margin-top: 0;
  min-width: 172px;
  padding: 6px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(36, 38, 42, 0.98);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.45);
  z-index: 130;
}

.playlistAddDropdown button {
  display: block;
  width: 100%;
  padding: 6px 8px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 4px;
  background: #4a4c51;
  color: #e0e4ea;
  font-size: 11px;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
}

.playlistAddDropdown button:hover {
  background: #55585e;
}

#playerSettingsModal {
  position: fixed;
  inset: 0;
  z-index: 330;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(12, 12, 12, 0.62);
}

#playerSettingsModal.visible {
  display: flex;
}

.playerSettingsDialog {
  width: min(92vw, 820px);
  height: min(78vh, 640px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: #22272e;
  color: #d7dce2;
  box-shadow: 0 18px 32px rgba(0, 0, 0, 0.4);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.playerSettingsHeader {
  padding: 10px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  background: #2d333b;
  font-size: 13px;
  font-weight: 700;
}

.playerSettingsBody {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
}

.playerSettingsNav {
  flex: 0 0 148px;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
  padding: 8px 0;
  overflow-y: auto;
  background: #1e2228;
}

.playerSettingsNavBtn {
  display: block;
  width: 100%;
  padding: 8px 12px;
  border: none;
  background: transparent;
  color: #aeb6c0;
  font-size: 12px;
  text-align: left;
  cursor: pointer;
}

.playerSettingsNavBtn:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #e8ecf0;
}

.playerSettingsNavBtn.active {
  background: rgba(88, 166, 255, 0.15);
  color: #79b8ff;
  font-weight: 600;
}

.playerSettingsScroll {
  flex: 1 1 auto;
  min-width: 0;
  overflow-y: auto;
  padding: 12px 16px 16px;
}

.playerSettingsSection {
  margin-bottom: 20px;
  scroll-margin-top: 8px;
}

.playerSettingsSectionTitle {
  margin: 0 0 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 13px;
  font-weight: 700;
  color: #e8ecf0;
}

.playerSettingsField {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 8px 12px;
  align-items: center;
  margin-bottom: 10px;
  font-size: 12px;
}

.playerSettingsFieldCheck {
  grid-template-columns: 1fr;
}

.playerSettingsField input[type="text"],
.playerSettingsField input[type="number"],
.playerSettingsField select {
  width: 100%;
  padding: 5px 8px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: #1a1f26;
  color: #e8ecf0;
}

.playerSettingsHint {
  grid-column: 1 / -1;
  font-size: 11px;
  color: #8b949e;
  line-height: 1.4;
}

.playerSettingsFooter {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 10px 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  background: #2a3038;
}

.miniBtn {
  font-size: 12px;
  padding: 5px 12px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: #3a414b;
  color: #e8ecf0;
  cursor: pointer;
}

#loadingMask {
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 10px;
  background: rgba(20, 22, 26, 0.72);
  z-index: 20;
  pointer-events: none;
}

#messageBox {
  position: absolute;
  top: 10px;
  left: 50%;
  z-index: 40;
  display: none;
  max-width: 70vw;
  padding: 8px 14px;
  border-radius: 4px;
  color: #fff;
  background: rgba(20, 20, 20, 0.82);
  font-size: 13px;
  transform: translateX(-50%);
}

.canvasIdleOverlay {
  position: absolute;
  inset: 0;
  z-index: 25;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 9px;
  background: rgba(47, 47, 47, 0.58);
  pointer-events: none;
}

.canvasIdleOverlay.isVisible {
  display: flex;
  pointer-events: auto;
}

.playerStartupSampleBtn {
  color: #9ecbff;
  text-decoration: none;
  border: none;
  background: transparent;
  border-bottom: 1px dashed rgba(158, 203, 255, 0.35);
  padding: 4px 2px 5px;
  font-size: 13px;
  cursor: pointer;
}

.playerStartupSampleBtn:hover {
  color: #c6e0ff;
  border-bottom-color: rgba(198, 224, 255, 0.55);
}

#playlistList,
#rightPanel {
  scrollbar-width: thin;
  scrollbar-color: #4d525a rgba(20, 22, 26, 0.55);
}

#playlistContextMenu {
  position: fixed;
  z-index: 80;
  min-width: 146px;
  display: none;
  overflow: visible;
  background: rgba(28, 30, 35, 0.98);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
  padding: 6px;
  color: #e6e6e6;
  font-size: 12px;
  user-select: none;
}

#playlistContextMenu.visible {
  display: block;
}

#playlistContextMenu button {
  width: 100%;
  border: none;
  border-radius: 4px;
  padding: 6px 10px;
  text-align: left;
  background: transparent;
  color: #e6e6e6;
  cursor: pointer;
  font-size: 12px;
}

#playlistContextMenu button:hover {
  background: rgba(255, 255, 255, 0.09);
}

#playlistContextMenu > button + button,
#playlistContextMenu > button + .playlistContextItem,
#playlistContextMenu > .playlistContextItem + button {
  margin-top: 2px;
}

.playlistContextItem {
  position: relative;
}

.playlistContextItemLabel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  border-radius: 4px;
  padding: 6px 10px;
  color: #e6e6e6;
  background: transparent;
  cursor: default;
}

.playlistContextItem:hover > .playlistContextItemLabel {
  background: rgba(255, 255, 255, 0.09);
}

.playlistContextSubmenu {
  display: none;
  position: absolute;
  left: calc(100% + 4px);
  top: 0;
  min-width: 120px;
  padding: 6px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(28, 30, 35, 0.98);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
}

.playlistContextItem:hover > .playlistContextSubmenu {
  display: block;
}

.playlistContextItem.submenuFlipLeft > .playlistContextSubmenu {
  left: auto;
  right: calc(100% + 4px);
}

.playlistContextSubmenu button {
  width: 100%;
  border: none;
  border-radius: 4px;
  padding: 6px 10px;
  text-align: left;
  background: transparent;
  color: #e6e6e6;
  cursor: pointer;
  font-size: 12px;
}

.playlistContextSubmenu button:hover {
  background: rgba(255, 255, 255, 0.09);
}