NumTabs/numtabs.css at main · x0d7x/NumTabs · GitHub

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/* ============================================
   NumTabs - Tab Numbering for Zen Browser

   Features:
   - Absolute tab numbers (position from left)
   - Modern styling
   - Theme variants

   Install: Copy to chrome/userChrome.css
   ============================================ */

/* ============================================
   TAB NUMBERING
   Uses CSS counters to show absolute position
   ============================================ */

/* Counter for tab numbering */
.tabbrowser-tabs {
  counter-reset: numtabs-counter;
}

.tabbrowser-tab {
  counter-increment: numtabs-counter;
}

/* Show number on each tab */
.tab-stack > .tab-content::after {
  content: counter(numtabs-counter) !important;
  position: absolute !important;
  right: 6px !important;
  top: 4px !important;
  font-size: 9px !important;
  font-weight: 600 !important;
  font-family: "SF Mono", "Fira Code", monospace !important;
  color: var(--numtabs-num-color, #abb2bf) !important;
  background: var(--numtabs-num-bg, #3e4452) !important;
  padding: 1px 5px !important;
  border-radius: 3px !important;
  z-index: 100 !important;
}

/* Current/selected tab - highlight */
.tabbrowser-tab[selected="true"] .tab-stack > .tab-content::after {
  background: var(--numtabs-active-bg, #61afef) !important;
  color: var(--numtabs-active-color, #282c34) !important;
  font-weight: 700 !important;
}

/* ============================================
   COLOR THEMES
   ============================================ */

/* One Dark (default) */
:root {
  --numtabs-num-color: #abb2bf;
  --numtabs-num-bg: #3e4452;
  --numtabs-active-bg: #61afef;
  --numtabs-active-color: #282c34;
}

/* Dracula */
:root[data-theme="dracula"] {
  --numtabs-num-color: #f8f8f2;
  --numtabs-num-bg: #44475a;
  --numtabs-active-bg: #bd93f9;
  --numtabs-active-color: #282a36;
}

/* Nord */
:root[data-theme="nord"] {
  --numtabs-num-color: #eceff4;
  --numtabs-num-bg: #4c566a;
  --numtabs-active-bg: #88c0d0;
  --numtabs-active-color: #2e3440;
}

/* Gruvbox */
:root[data-theme="gruvbox"] {
  --numtabs-num-color: #ebdbb2;
  --numtabs-num-bg: #504945;
  --numtabs-active-bg: #fabd2f;
  --numtabs-active-color: #282828;
}

/* Catppuccin */
:root[data-theme="catppuccin"] {
  --numtabs-num-color: #cdd6f4;
  --numtabs-num-bg: #45475a;
  --numtabs-active-bg: #cba6f7;
  --numtabs-active-color: #1e1e2e;
}

/* Tokyo Night */
:root[data-theme="tokyo-night"] {
  --numtabs-num-color: #c0caf5;
  --numtabs-num-bg: #3b4261;
  --numtabs-active-bg: #7aa2f7;
  --numtabs-active-color: #1a1b26;
}

/* GitHub Dark */
:root[data-theme="github-dark"] {
  --numtabs-num-color: #c9d1d9;
  --numtabs-num-bg: #484f58;
  --numtabs-active-bg: #58a6ff;
  --numtabs-active-color: #161b22;
}

/* ============================================
   TAB VISUAL STYLING
   ============================================ */

/* Smooth transitions */
.tabbrowser-tab,
.tab-stack,
.tab-content {
  transition: all 0.15s ease !important;
}

/* Hover effect */
.tabbrowser-tab:hover .tab-content {
  background-color: rgba(255, 255, 255, 0.06) !important;
}

/* Selected tab */
.tabbrowser-tab[selected="true"] .tab-content {
  background-color: rgba(97, 175, 239, 0.12) !important;
}

/* Subtle borders */
.tabbrowser-tab {
  border-right: 1px solid rgba(255, 255, 255, 0.04) !important;
}

/* Focus ring */
.tabbrowser-tab:focus-visible .tab-content {
  outline: 2px solid var(--numtabs-active-bg) !important;
  outline-offset: -2px !important;
}

/* ============================================
   PINNED TABS - Hide numbers
   ============================================ */

.tabbrowser-tab[pinned="true"] .tab-stack > .tab-content::after {
  display: none !important;
}

/* ============================================
   COMPACT MODE
   ============================================ */

@media (max-width: 700px) {
  .tab-stack > .tab-content::after {
    font-size: 8px !important;
    padding: 1px 3px !important;
    right: 4px !important;
  }
}

/* ============================================
   HIDDEN LABELS
   When tabs get small, show only icon + number
   ============================================ */

.tabbrowser-tab[overflow="true"] .tab-label {
  display: none !important;
}

.tabbrowser-tab[overflow="true"] .tab-content::after {
  position: absolute !important;
  left: 50% !important;
  transform: translateX(-50%) !important;
  right: auto !important;
}