kandev/apps/web/app/dockview-theme.css

/* Dockview theme — Mux-inspired pill tabs */

.dockview-theme-kandev {
  /* Overall dockview bg (visible in gaps between groups) — match card to eliminate visible gaps */
  --dv-background-color: var(--card);

  /* Each group panel area */
  --dv-group-view-background-color: var(--background);

  /* Separator / sash */
  --dv-separator-border: var(--border);
  --dv-active-sash-color: var(--primary);
  --dv-paneview-header-border-color: var(--border);

  /* Tab bar — #171717 bg, matching panel content */
  --dv-tabs-and-actions-container-font-size: 12px;
  --dv-tabs-and-actions-container-background-color: var(--background);

  /* Active group, selected tab — #2a2a2a pill */
  --dv-activegroup-visiblepanel-tab-background-color: var(--muted);
  --dv-activegroup-visiblepanel-tab-color: var(--foreground);

  /* Active group, unselected tab — transparent */
  --dv-activegroup-hiddenpanel-tab-background-color: transparent;
  --dv-activegroup-hiddenpanel-tab-color: var(--muted-foreground);

  /* Inactive group tabs — more dimmed */
  --dv-inactivegroup-visiblepanel-tab-background-color: color-mix(
    in srgb,
    var(--muted) 100%,
    transparent
  );
  --dv-inactivegroup-visiblepanel-tab-color: color-mix(
    in srgb,
    var(--muted-foreground) 100%,
    transparent
  );
  --dv-inactivegroup-hiddenpanel-tab-background-color: transparent;
  --dv-inactivegroup-hiddenpanel-tab-color: color-mix(
    in srgb,
    var(--muted-foreground) 100%,
    transparent
  );

  /* Close icon */
  --dv-tab-close-icon: var(--muted-foreground);

  /* Misc */
  --dv-tabs-container-scrollbar-color: var(--scrollbar-thumb);
  --dv-drag-over-background-color: color-mix(in oklab, var(--primary) 10%, transparent);
  --dv-drag-over-border-color: var(--primary);
}

/* ── Inactive group tab bar dimming ── */
.dockview-theme-kandev .inactive-group .dv-tabs-and-actions-container {
  /* opacity: 0.6; */
}

/* ── Tab bar container ── */
.dockview-theme-kandev .dv-tabs-and-actions-container {
  background: var(--background);
  border-bottom: 1px solid var(--border);
  min-height: 34px;
  height: 34px;
  padding: 0 6px;
  align-items: center;
}

/* Remove tab divider separators */
.dockview-theme-kandev .dv-tabs-container.dv-horizontal .dv-tab::before {
  display: none !important;
}

/* ── Individual tabs — pill style ── */
.dockview-theme-kandev .dv-tab {
  padding: 0;
  margin: 0 2px;
  font-size: 12px;
  font-weight: 500;
  min-width: auto;
  border-radius: 6px;
  border-bottom: none !important;
  outline: none !important;
  transition:
    background-color 0.15s ease,
    color 0.15s ease;
}

.dockview-theme-kandev .dv-tab:hover {
  background: color-mix(in srgb, var(--muted) 50%, transparent);
  color: var(--foreground);
}

/* Active tab — filled pill, no underline */
.dockview-theme-kandev .dv-active-tab {
  border-bottom: none !important;
}

/* ── Default tab (built-in with close button) ── */
.dockview-theme-kandev .dv-default-tab {
  font-size: 12px;
  font-weight: 500;
  padding: 2px 6px;
  gap: 6px;
}

/* Close button — show on hover and active */
.dockview-theme-kandev .dv-default-tab .dv-default-tab-action {
  opacity: 0;
  transition: opacity 0.15s ease;
  border-radius: 3px;
  padding: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.dockview-theme-kandev .dv-default-tab .dv-default-tab-action .dv-svg {
  height: 8px;
  width: 8px;
}

.dockview-theme-kandev .dv-default-tab .dv-default-tab-action:hover {
  background: color-mix(in srgb, var(--foreground) 12%, transparent);
}

.dockview-theme-kandev .dv-tab:hover .dv-default-tab .dv-default-tab-action,
.dockview-theme-kandev .dv-active-tab .dv-default-tab .dv-default-tab-action {
  opacity: 1;
}

/* ── Panel content ── */
.dockview-theme-kandev .dv-content-container {
  background: var(--card);
}

/* Strip all chrome from session panel wrappers inside dockview */
.dockview-theme-kandev .dv-content-container .session-panel-content-wrapper {
  border-radius: 0 !important;
  box-shadow: none !important;
}

.dockview-theme-kandev .dv-content-container .session-panel-wrapper {
  border: none !important;
  border-radius: 0 !important;
  padding: 0 !important;
  margin: 0 !important;
}

/* ── Sash (resize handle) ── */
.dockview-theme-kandev .dv-resize-container > .sash-container .sash {
  background: transparent;
  transition: background-color 0.15s ease;
}

.dockview-theme-kandev .dv-resize-container > .sash-container .sash:hover,
.dockview-theme-kandev .dv-resize-container > .sash-container .sash.active {
  background: var(--primary);
}

/* Hide close button on tabs in locked groups (sidebar) */
.dockview-theme-kandev .dv-locked-groupview .dv-default-tab .dv-default-tab-action {
  display: none !important;
}

/* ── Left header actions (after last tab — "+" button) ── */
.dockview-theme-kandev .dv-left-actions-container {
  display: flex;
  align-items: center;
  padding-left: 4px;
  gap: 2px;
}

.dv-tab:focus-within:after,
.dv-tab:focus:after {
  outline: none !important;
}

/* ── Right header actions ── */
.dockview-theme-kandev .dv-right-actions-container {
  display: flex;
  align-items: center;
  padding-right: 4px;
  gap: 2px;
}

/* ── Void container (spacer between left-actions and right-actions) ── */
.dockview-theme-kandev .dv-void-container {
  flex: 1;
}

/* ── Watermark (empty group) ── */
.dockview-theme-kandev .dv-watermark {
  background: transparent;
}

/* ── Drop target overlay ── */
.dockview-theme-kandev .drop-target-dropzone > .drop-target-selection {
  border: 2px solid var(--primary);
  background: color-mix(in oklab, var(--primary) 8%, transparent);
  border-radius: 4px;
}