{ config, pkgs, lib, ... }:

let
  firefoxAddons = pkgs.nur.repos.rycee.firefox-addons;
in
{
  programs.firefox = {
    enable = true;

    profiles.default = {
      bookmarks = {
        force = true;
        settings = [
          {
            name = "Toolbar";
            toolbar = true;
            bookmarks = [
              {
                name = "Dev";
                bookmarks = [
                  { name = "GitHub"; url = "https://github.com/gibbyDev"; }
                  { name = "ChatGPT"; url = "https://chatgpt.com"; }
                  { name = "Hostinger"; url = "https://hostinger.com"; }
                  { name = "UpWork"; url = "https://www.upwork.com/nx/find-work/best-matches"; }
                  { name = "Servers"; bookmarks = [ { name = "8080"; url = "http://localhost:8080"; } { name = "3000"; url = "http://localhost:3000"; } { name = "5000"; url = "http://localhost:5000"; } ]; }
                ];
              }
              {
                name = "Personal";
                bookmarks = [
                  { name = "Dropbox"; url = "https://www.dropbox.com/home"; }
                  { name = "Betterhelp"; url = "https://www.betterhelp.com/"; }
                ];
              }

              {
                name = "Mail";
                bookmarks = [
                  { name = "ProtonMail"; url = "https://protonmail.com"; }
                  { name = "Gmail"; url = "https://gmail.com"; }
                ];
              }

              {
                name = "Social";
                bookmarks = [
                  { name = "LinkedIn"; url = "https://linkedin.com"; }
                  { name = "YouTube"; url = "https://youtube.com"; }
                  { name = "YouTube Studio"; url = "https://studio.youtube.com/channel/UCrWyV9qsJOPCF2af1gYzDeQ"; }
                ];
              }


              # You can still mix in loose bookmarks if you want
              { name = "Search"; url = "https://duckduckgo.com"; }
            ];
          }
        ];
      };

      # ------------------------------
      # ⚙️ Firefox preferences
      # ------------------------------
      settings = {
        "places.favicons.enabled" = true;
        "privacy.donottrackheader.enabled" = true;
        "network.trr.mode" = 2;
        "toolkit.legacyUserProfileCustomizations.stylesheets" = true;
      };

      # ------------------------------
      # 🧩 Extensions
      # ------------------------------
      extensions.packages = with firefoxAddons; [
        pywalfox
        vimium
        ublock-origin
        sponsorblock
        darkreader
        tridactyl
        youtube-shorts-block
      ];
      userChrome = ''
                /* ===================================================================
           LATIN ACCENT - FIREFOX TRANSPARENT THEME
           Made with cariño by Acercandr0
           =================================================================== */

        :root {
          /* 🎯 Core Transparency */
          --tabpanel-background-color: transparent !important;
          --chrome-content-separator-color: transparent !important;
          --toolbar-bgcolor: transparent !important;

          /* 🌈 Adaptive Color System */
          --accent-color: color-mix(in srgb, AccentColor 100%, transparent) !important;
          --accent-color-subtle: color-mix(in srgb, AccentColor 30%, transparent) !important;

          /* 💻 Opacity System */
          --inactive-opacity: 0.3 !important;
          --hover-opacity: 1 !important;
          --semi-opacity: 0.7 !important;

          /* ⚡ Animation System */
          --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
          --transition-bounce: all 0.45s cubic-bezier(0.65, -0.50, 0.260, 1.50) !important;
          --transition-quick: all 0.15s ease-out !important;

          /* 📐 Layout Constants */
          --border-radius: 5px;
          --border-radius-large: 7px;

          /* 🔍 Outline & Border System */
          --border-outline-width: 1px;

          /* 🎨 Adaptive Interface Colors - Light/Dark aware */
          --base-bg: light-dark(rgb(245, 245, 245), rgb(20, 20, 20));
          --panel-bg: color-mix(in srgb, var(--accent-color) 1%, var(--base-bg) 99%) !important;
          --panel-border: var(--accent-color) !important;
          --panel-text: light-dark(rgb(40, 40, 40), white) !important;
          --hover-bg: light-dark(rgba(0, 0, 0, 0.08), rgba(255, 255, 255, 0.08)) !important;

          /* 🔍 Focus System */
          --focus-outline-color: var(--accent-color) !important;
          --focus-outline-width: var(--border-outline-width) !important;
          --toolbarbutton-icon-fill-attention: var(--accent-color) !important;

          /* 📋 Dropdown Styling */
          --arrowpanel-background: var(--panel-bg) !important;
          --arrowpanel-border-color: var(--panel-border) !important;
          --arrowpanel-color: var(--panel-text) !important;
          --urlbar-open-background: var(--panel-bg) !important;
          --urlbar-open-color: var(--panel-text) !important;

          /* 🚫 Button Background Override */
          --toolbarbutton-hover-background: transparent !important;
          --toolbarbutton-active-background: transparent !important;
        }

        /* ===========================
           🧹 GLOBAL RESETS
           =========================== */
        *,
        #content,
        #content > *,
        #main-window,
        #browser,
        #appcontent,
        #browserContainer,
        #tabbrowser-tabpanels,
        #tabbrowser-tabbox,
        #tabbrowser-arrowscrollbox,
        .tabbrowser-tabs,
        .webRenderCompositor,
        .browserContainer,
        .browserStack,
        #webrtcIndicator,
        #navigator-toolbox,
        #TabsToolbar,
        #PersonalToolbar {
          box-shadow: none !important;
          filter: none !important;
        }

        /* ===========================
           📑 TAB SYSTEM
           =========================== */

        #navigator-toolbox,
        #TabsToolbar,
        #nav-bar {
          border: none !important;
        }

        /* Tab Layout */
        .titlebar-spacer[type="pre-tabs"] {
          width: 1px !important;
        }

        /* Mimized window tab spacing */
        #main-window[sizemode="maximized"] #TabsToolbar {
          padding-left: 2px !important;
        }

        #main-window[sizemode="maximized"] .tabbrowser-tabs {
          margin-left: 0 !important;
        }

        /* Post-tabs spacer - Windows */
        @supports not (-moz-bool-pref: "widget.macos.titlebar-blend") {
          .titlebar-spacer[type="post-tabs"] {
            width: 40px !important;
          }
        }

        /* Pre-tabs spacer - macOS */
        @supports (-moz-bool-pref: "widget.macos.titlebar-blend") {
          .titlebar-spacer[type="pre-tabs"] {
            width: 80px !important;
          }

          .titlebar-spacer[type="post-tabs"] {
            width: 1px !important;
          }
        }

        /* Base Tab Styling */
        .tabbrowser-tab {
          transition: var(--transition-smooth) !important;
          position: relative;
        }

        /* Active Tab */
        .tabbrowser-tab[selected="true"] .tab-background {
          border: var(--border-outline-width) solid var(--accent-color) !important;
          background: transparent !important;
          border-radius: var(--border-radius) !important;
          animation: tabActivate 0.3s ease-out;
        }

        /* Inactive Tabs */
        .tabbrowser-tab:not([selected]) .tab-icon-image,
        .tabbrowser-tab:not([selected]) .tab-label,
        #tabs-newtab-button {
          opacity: var(--inactive-opacity) !important;
          transition: var(--transition-smooth) !important;
        }

        /* Tab Hover Effects */
        .tabbrowser-tab:hover .tab-text,
        .tabbrowser-tab:hover .tab-icon-image,
        #tabs-newtab-button:hover {
          opacity: var(--hover-opacity) !important;
        }

        /* Tab Close Button */
        .tabbrowser-tab .tab-close-button {
          opacity: 0 !important;
          visibility: hidden !important;
          transform: scale(0.8) rotate(30deg) !important;
          transition: var(--transition-bounce) !important;
        }

        .tabbrowser-tab:hover .tab-close-button {
          opacity: var(--semi-opacity) !important;
          visibility: visible !important;
          transform: scale(1) rotate(0deg) !important;
        }

        .tabbrowser-tab .tab-close-button:hover {
          opacity: var(--hover-opacity) !important;
          transform: scale(1.1) !important;
        }

        /* ===========================
           🏷️ TAB GROUPS STYLING
           =========================== */

        /* Hide original underline */
        .tab-group-line {
          display: none !important;
        }

        /* Hide label underline */
        .tab-group-label-container {
          #tabbrowser-tabs:is([orient="horizontal"], [orient="vertical"]:not([expanded])) tab-group:not([collapsed]) > &::after {
            display: none !important;
          }
        }

        /* Group outline */
        tab-group:not([collapsed]) .tabbrowser-tab .tab-background {
          outline: var(--border-outline-width) solid var(--tab-group-color) !important;
          outline-offset: -1px !important;
        }

        /* Inactive tabs inside group */
        tab-group:not([collapsed]) .tabbrowser-tab:not([selected]) .tab-background {
          outline: var(--border-outline-width) solid color-mix(in srgb, var(--tab-group-color) 30%, transparent) !important;
          outline-offset: -1px !important;
        }

        /* Active group tab */
        tab-group:not([collapsed]) .tabbrowser-tab[selected="true"] .tab-background {
          border: none !important;
          outline: var(--border-outline-width) solid var(--tab-group-color) !important;
          outline-offset: -1px !important;
        }

        /* 🏷️ Label text - inactive/closed state */
        .tab-group-label {
          text-transform: uppercase !important;
          font-weight: 500 !important;
          letter-spacing: 0.5px !important;
          color: light-dark(#666666, #cccccc) !important;
          background-color: transparent !important;
          transition: var(--transition-smooth) !important;
          outline: var(--border-outline-width) solid var(--tab-group-color) !important;
          outline-offset: -1px !important;
          padding: 8px !important;
          border-radius: var(--border-radius) !important;
        }

        /* 🌟 Label hover effect */
        .tab-group-label-container:hover .tab-group-label {
          color: light-dark(#333333, white) !important;
          background-color: color-mix(in srgb, var(--tab-group-color) 35%, light-dark(white, black)) !important;
          outline: var(--border-outline-width) solid var(--tab-group-color) !important;
          outline-offset: -1px !important;
        }


        /* ===========================
        📊 AUDIO TAB INDICATORS
        =========================== */

        /* 🔊 Sound playing (not muted) */
        .tab-audio-button[soundplaying]:not([muted]) {
          background-image: url("chrome://global/skin/media/audio.svg") !important;
          background-repeat: no-repeat !important;
          background-position: center !important;
          background-size: contain !important;
          -moz-context-properties: fill, stroke !important;
          fill: currentColor !important;
          opacity: 0.6 !important;
          background-color: transparent !important;
          border: none !important;
          padding: 0 !important;
          padding-right: 4px !important;
          margin-inline-start: 4px !important;
          width: 10px !important;
          height: 10px !important;
          display: block !important;
          transform-origin: center;
        }

        /* 🔇 Muted tab */
        .tab-audio-button[muted] {
          background-image: url("chrome://global/skin/media/audio-muted.svg") !important;
          background-repeat: no-repeat !important;
          background-position: center !important;
          background-size: contain !important;
          -moz-context-properties: fill, stroke !important;
          fill: var(--accent-color) !important;
          opacity: 0.8 !important;
          background-color: transparent !important;
          border: none !important;
          padding: 0 !important;
          padding-right: 4px !important;
          margin-inline-start: 4px !important;
          width: 10px !important;
          height: 10px !important;
          display: block !important;
        }

        /* ===========================
           🔍 URL BAR SYSTEM
           =========================== */

        /* Closed State - Force transparent background */
        #urlbar:not([open]) #urlbar-background,
        #urlbar:not([open]) .urlbar-background,
        #searchbar:not([open]),
        #urlbar[breakout][breakout-extend]:not([open]) > #urlbar-background {
          background: transparent !important;
          background-color: transparent !important;
          background-clip: border-box !important;
        }

        /* Open State - Updated selectors for new Firefox versions */
        #urlbar[open] > #urlbar-background,
        #urlbar[breakout][breakout-extend][open] > #urlbar-background,
        #urlbar[open] .urlbar-background {
          background: var(--urlbar-open-background) !important;
          background-color: var(--panel-bg) !important;
          background-clip: border-box !important;
          color: var(--urlbar-open-color) !important;
          border: var(--border-outline-width) solid var(--accent-color) !important;
          border-radius: var(--border-radius-large) !important;
          margin: 1px !important;
          animation: urlbarExpand 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
          box-shadow: none !important;
        }

        /* Fix for urlbar input container when closed */
        #urlbar:not([open]) #urlbar-input-container {
          background: transparent !important;
          background-color: transparent !important;
        }

        /* Search Results - always transparent background, panel shows behind */
        #urlbar-results,
        #urlbar-results .urlbarView,
        #urlbar-results .urlbarView-body,
        #urlbar-results .urlbarView-row {
          background: transparent !important;
        }

        /* Search Results Container */
        #urlbar[open] #urlbar-results,
        #urlbar[open] #urlbar-results .urlbarView,
        #urlbar[breakout][breakout-extend][open] #urlbar-results {
          background: transparent !important;
        }

        #urlbar[open] #urlbar-results .urlbarView-body {
          background: transparent !important;
        }

        /* Search Result Items */
        #urlbar-results .urlbarView-row {
          transition: var(--transition-quick) !important;
          border-radius: var(--border-radius) !important;
          margin-right: 8px !important;
        }

        #urlbar-results .urlbarView-row:hover {
          background: var(--hover-bg) !important;
          transform: translateX(4px);
          margin-right: 8px !important;
        }

        #urlbar-searchmode-switcher {
          background-color: transparent !important;
        }

        /* URL Input Styling */
        .urlbar-input-box {
          display: flex !important;
          justify-content: center !important;
        }

        .urlbar-input {
          text-align: center !important;
          transition: var(--transition-smooth) !important;
        }

        #urlbar[focused] .urlbar-input {
          transform: scale(1.02);
        }

        /* ===========================
           📚 BOOKMARKS BAR
           =========================== */

        /* Personal Toolbar (Bookmarks Bar) */
        #PersonalToolbar {
          background: transparent !important;
          border: none !important;
          padding: 2px 5px !important;
        }

        /* Bookmark Items Container */
        #PlacesToolbarItems {
          display: flex !important;
          align-items: center !important;
          gap: 2px !important;
        }

        /* Individual Bookmark Items */
        .bookmark-item {
          background: transparent !important;
          border: none !important;
          border-radius: var(--border-radius) !important;
          opacity: var(--inactive-opacity) !important;
          transition: var(--transition-smooth) !important;
          padding: 4px 8px !important;
          margin: 0 1px !important;
          min-height: 24px !important;
          max-height: 24px !important;
          display: flex !important;
          align-items: center !important;
          justify-content: center !important;
          white-space: nowrap !important;
          overflow: hidden !important;
          text-overflow: ellipsis !important;
          transform-origin: center !important;
          flex-shrink: 0 !important;
        }

        /* Bookmark Icons */
        .bookmark-item .toolbarbutton-icon {
          width: 16px !important;
          height: 16px !important;
          margin-right: 4px !important;
          flex-shrink: 0 !important;
        }

        /* Bookmark Text */
        .bookmark-item .toolbarbutton-text {
          font-size: 12px !important;
          max-width: 120px !important;
          overflow: hidden !important;
          text-overflow: ellipsis !important;
          white-space: nowrap !important;
        }

        /* Bookmark Hover - Only opacity and subtle effects */
        .bookmark-item:hover {
          opacity: var(--hover-opacity) !important;
          background: var(--hover-bg) !important;
          transform: none !important;
        }

        /* Bookmark Icon Color on Hover */
        .bookmark-item:hover .toolbarbutton-icon {
          fill: var(--accent-color) !important;
        }

        /* Bookmarks Chevron Button */
        #PlacesChevron {
          background: transparent !important;
          border: none !important;
          opacity: var(--inactive-opacity) !important;
          transition: var(--transition-smooth) !important;
          min-width: 20px !important;
          max-width: 20px !important;
          margin-left: 5px !important;
        }

        #PlacesChevron:hover {
          opacity: var(--hover-opacity) !important;
          background: var(--hover-bg) !important;
          transform: none !important;
        }

        /* ===========================
           🎛️ REFINED BUTTON SYSTEM
           =========================== */

        /* 🔧 COMPREHENSIVE BUTTON SELECTOR - keeping normal behavior for urlbar buttons */
        toolbarbutton:not(.bookmark-item):not([id*="identity"]):not([id*="tracking"]):not([id*="star"]):not([id*="picture"]):not([id*="reader"]),
        .toolbarbutton-1:not(.bookmark-item):not([id*="identity"]):not([id*="tracking"]):not([id*="star"]):not([id*="picture"]):not([id*="reader"]),
        #back-button,
        #forward-button,
        #reload-button,
        #stop-button,
        #home-button,
        #library-button,
        #fxa-toolbar-menu-button,
        #unified-extensions-button,
        #downloads-button,
        #bookmarks-menu-button,
        #history-panelmenu,
        #appMenu-button,
        #PanelUI-menu-button,
        #sidebar-switcher-target toolbarbutton,
        #sidebar-box .sidebar-placesTree toolbarbutton,
        .sidebar-placesTreechildren toolbarbutton,
        #sidebar-header .sidebar-close-button,
        #sidebar-header toolbarbutton,
        .sidebar-panel toolbarbutton,
        #sidebar toolbarbutton,
        #context-navigation toolbarbutton,
        #context-sep-navigation + toolbarbutton,
        .unified-extensions-item-action-button,
        .panel-subview-footer-button,
        toolbarpaletteitem > toolbarbutton,
        .chromeclass-toolbar-additional toolbarbutton,
        #addon-bar toolbarbutton,
        .tabs-newtab-button,
        #new-tab-button,
        .tab-close-button,
        .close-button,
        .button-background {
          background: transparent !important;
          opacity: var(--inactive-opacity) !important;
          transition: var(--transition-smooth) !important;
          border-radius: var(--border-radius) !important;
          position: relative;
          overflow: hidden;
          border: none !important;
          box-shadow: none !important;
        }

        /* Keep urlbar buttons with their normal transparent behavior */
        #urlbar-container toolbarbutton,
        #urlbar toolbarbutton,
        #identity-permission-box,
        #identity-icon-box,
        #tracking-protection-icon-container,
        #star-button-box,
        #picture-in-picture-button,
        #reader-mode-button,
        #pageAction-urlbar-_testpilot-containers,
        #pageAction-panel-bookmark,
        #pageAction-panel-copyURL,
        #pageAction-panel-emailLink,
        #pageAction-panel-pinTab,
        #pageAction-panel-sendToDevice,
        #page-action-buttons > toolbarbutton,
        .urlbar-page-action {
          background: transparent !important;
          opacity: var(--inactive-opacity) !important;
          transition: var(--transition-smooth) !important;
          border-radius: var(--border-radius) !important;
          border: none !important;
          box-shadow: none !important;
        }

        /* 🚫 FORCE NO BACKGROUNDS */
        #navigator-toolbox toolbarbutton:not(.bookmark-item),
        #navigator-toolbox .toolbarbutton-1:not(.bookmark-item),
        #nav-bar > * > toolbarbutton:not(.bookmark-item),
        #nav-bar > toolbarbutton:not(.bookmark-item),
        #nav-bar toolbarbutton:not(.bookmark-item),
        #nav-bar .toolbarbutton-1:not(.bookmark-item),
        #back-button,
        #forward-button,
        #reload-button,
        #stop-button,
        #home-button,
        #library-button,
        #fxa-toolbar-menu-button,
        #unified-extensions-button,
        #downloads-button,
        #bookmarks-menu-button,
        #history-panelmenu,
        #appMenu-button,
        #PanelUI-menu-button,
        #sidebar-switcher-target toolbarbutton,
        .toolbarbutton-1:not(.bookmark-item),
        .button-background {
          background-color: transparent !important;
          background-image: none !important;
          background: transparent !important;
        }

        #navigator-toolbox toolbarbutton:not(.bookmark-item):hover,
        #navigator-toolbox .toolbarbutton-1:not(.bookmark-item):hover,
        #nav-bar > * > toolbarbutton:not(.bookmark-item):hover,
        #nav-bar > toolbarbutton:not(.bookmark-item):hover,
        #nav-bar toolbarbutton:not(.bookmark-item):hover,
        #nav-bar .toolbarbutton-1:not(.bookmark-item):hover,
        #back-button:hover,
        #forward-button:hover,
        #reload-button:hover,
        #stop-button:hover,
        #home-button:hover,
        #library-button:hover,
        #fxa-toolbar-menu-button:hover,
        #unified-extensions-button:hover,
        #downloads-button:hover,
        #bookmarks-menu-button:hover,
        #history-panelmenu:hover,
        #appMenu-button:hover,
        #PanelUI-menu-button:hover,
        #sidebar-switcher-target toolbarbutton:hover,
        .toolbarbutton-1:not(.bookmark-item):hover,
        .toolbarbutton-1:not(.bookmark-item):hover:active,
        .button-background:hover {
          background-color: transparent !important;
          background-image: none !important;
          background: transparent !important;
        }

        /* 🎯 REFINED HOVER EFFECTS - subtle scale only */
        toolbarbutton:not(.bookmark-item):not([id*="identity"]):not([id*="tracking"]):not([id*="star"]):not([id*="picture"]):not([id*="reader"]):hover,
        .toolbarbutton-1:not(.bookmark-item):not([id*="identity"]):not([id*="tracking"]):not([id*="star"]):not([id*="picture"]):not([id*="reader"]):hover,
        #nav-bar toolbarbutton:not(.bookmark-item):hover,
        #nav-bar-customization-target > toolbarbutton:not(.bookmark-item):hover,
        #back-button:hover,
        #forward-button:hover,
        #reload-button:hover,
        #stop-button:hover,
        #home-button:hover,
        #library-button:hover,
        #fxa-toolbar-menu-button:hover,
        #unified-extensions-button:hover,
        #downloads-button:hover,
        #bookmarks-menu-button:hover,
        #history-panelmenu:hover,
        #appMenu-button:hover,
        #PanelUI-menu-button:hover,
        #sidebar-switcher-target toolbarbutton:hover,
        #sidebar-box .sidebar-placesTree toolbarbutton:hover,
        .sidebar-placesTreechildren toolbarbutton:hover,
        #sidebar-header .sidebar-close-button:hover,
        #sidebar-header toolbarbutton:hover,
        .sidebar-panel toolbarbutton:hover,
        #sidebar toolbarbutton:hover,
        #context-navigation toolbarbutton:hover,
        #context-sep-navigation + toolbarbutton:hover,
        .unified-extensions-item-action-button:hover,
        .panel-subview-footer-button:hover,
        toolbarpaletteitem > toolbarbutton:hover,
        .chromeclass-toolbar-additional toolbarbutton:hover,
        #addon-bar toolbarbutton:hover,
        .tabs-newtab-button:hover,
        #new-tab-button:hover,
        .tab-close-button:hover,
        .close-button:hover,
        .button-background:hover {
          opacity: var(--hover-opacity) !important;
          transform: scale(1.05) !important;
        }

        /* Keep urlbar buttons transparent on hover */
        #urlbar-container toolbarbutton:hover,
        #urlbar toolbarbutton:hover,
        #identity-permission-box:hover,
        #identity-icon-box:hover,
        #tracking-protection-icon-container:hover,
        #star-button-box:hover,
        #picture-in-picture-button:hover,
        #reader-mode-button:hover,
        .urlbar-page-action:hover {
          opacity: var(--hover-opacity) !important;
          background: transparent !important;
          transform: scale(1.05) !important;
        }

        /* 🎨 ICON COLOR CHANGE ON HOVER */
        toolbarbutton:not(.bookmark-item):hover image,
        .toolbarbutton-1:not(.bookmark-item):hover image,
        #nav-bar toolbarbutton:not(.bookmark-item):hover image,
        #urlbar toolbarbutton:hover image,
        #urlbar #identity-icon-box:hover image,
        #urlbar #identity-permission-box:hover image,
        #urlbar #tracking-protection-icon-container:hover image,
        #urlbar #star-button-box:hover image,
        #urlbar #picture-in-picture-button:hover image,
        #urlbar #reader-mode-button:hover image,
        .urlbar-page-action:hover image,
        #sidebar toolbarbutton:hover image,
        toolbarpaletteitem > toolbarbutton:hover image,
        .panel-subview-footer-button:hover image {
          fill: var(--accent-color) !important;
          filter: none !important;
        }

        .button-background:hover {
          & img {
            fill: var(--accent-color) !important;
          }
        }

        /* 🌟 SPECIAL STATES */
        toolbarbutton[checked="true"]:not(.bookmark-item),
        toolbarbutton[open="true"]:not(.bookmark-item),
        .toolbarbutton-1[checked="true"]:not(.bookmark-item),
        .toolbarbutton-1[open="true"]:not(.bookmark-item),
        #downloads-button[attention="true"],
        #library-button[attention="true"] {
          opacity: var(--hover-opacity) !important;
          background: var(--accent-color-subtle) !important;
        }

        /* ===========================
           🎭 ELEMENT VISIBILITY
           =========================== */

        #identity-icon-box label {
          display: none !important;
        }

        #sidebar-tools-and-extensions-splitter {
          display: none !important;
        }

        #forward-button[disabled="true"] {
          display: none !important;
        }

        toolbarbutton[label="Bookmarks toolbar items"] {
          display: none !important;
        }

        /* ===========================
           🎮 WINDOW CONTROLS
           =========================== */

        /* Normal Window */
        #main-window:not([tabsintitlebar]) .titlebar-buttonbox toolbarbutton,
        #main-window[tabsintitlebar]:not([sizemode="maximized"]) .titlebar-buttonbox toolbarbutton {
          opacity: var(--semi-opacity) !important;
          transform: scale(0.9) !important;
          transition: var(--transition-smooth) !important;
          fill: currentColor !important;
          color: inherit !important;
        }

        /* Hover - Normal Window - subtle scaling */
        #main-window:not([tabsintitlebar]) .titlebar-buttonbox toolbarbutton:hover,
        #main-window[tabsintitlebar]:not([sizemode="maximized"]) .titlebar-buttonbox toolbarbutton:hover {
          opacity: var(--hover-opacity) !important;
          transform: scale(1.05) !important;
          color: var(--accent-color) !important;
        }

        /* Maximized Window */
        #main-window[tabsintitlebar][sizemode="maximized"] .titlebar-buttonbox toolbarbutton,
        .titlebar-buttonbox toolbarbutton {
          opacity: var(--hover-opacity) !important;
          transform: scale(0.9) !important;
          transition: var(--transition-smooth) !important;
          fill: currentColor !important;
          color: inherit !important;
        }

        /* Hover - Maximized Window - subtle scaling */
        .titlebar-buttonbox toolbarbutton:hover {
          transform: scale(1.05) !important;
          color: var(--accent-color) !important;
        }

        /* ===========================
           ✨ ANIMATIONS & KEYFRAMES
           =========================== */

        /* URL Bar Expand Animation */
        @keyframes urlbarExpand {
          0% {
            opacity: 0;
            transform: scale(0.95) translateY(-5px);
          }
          70% {
            transform: scale(1.02) translateY(0);
          }
          100% {
            opacity: 1;
            transform: scale(1) translateY(0);
          }
        }

        /* Tab Activation Animation */
        @keyframes tabActivate {
          0% {
            transform: scale(0.98);
            opacity: 0.8;
          }
          50% {
            transform: scale(1.02);
          }
          100% {
            transform: scale(1);
            opacity: 1;
          }
        }

        /* Dropdown Slide Animation */
        #urlbar-results {
          animation: slideDown 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55) !important;
        }

        @keyframes slideDown {
          0% {
            opacity: 0;
            transform: translateY(-15px) scale(0.95);
          }
          60% {
            transform: translateY(2px) scale(1.01);
          }
          100% {
            opacity: 1;
            transform: translateY(0) scale(1);
          }
        }

        /* Loading Indicator */
        .tab-throbber {
          transition: var(--transition-smooth) !important;
        }

        .tab-throbber[busy] {
          animation: pulse 1.5s ease-in-out infinite;
        }

        @keyframes pulse {
          0%, 100% { opacity: 1; }
          50% { opacity: 0.6; }
        }

        /* Button Press Animation */
        @keyframes buttonPress {
          0% { transform: scale(1); }
          50% { transform: scale(0.95); }
          100% { transform: scale(1.05); }
        }

        /* Bookmark Button Animation */
        toolbarbutton:not(.bookmark-item):active,
        .toolbarbutton-1:not(.bookmark-item):active {
          animation: buttonPress 0.15s ease-out !important;
        }
      '';
      userContent = ''
                /* ===================================================================
           LATIN ACCENT - FIREFOX TRANSPARENT THEME
           Made with cariño by Acercandr0
           =================================================================== */

        @-moz-document url("about:home"), url("about:newtab"), url("about:blank") {
          html,
          body,
          #root,
          .outer-wrapper,
          main,
          .discovery-stream,
          .ds-layout,
          .sections-list,
          .top-sites,
          .search-wrapper {
            background: transparent !important;
            background-color: transparent !important;
            background-image: none !important;
            box-shadow: none !important;
            filter: none !important;
            border: none !important;
          }

          /* ===========================
             🎯 TOP SITES
             =========================== */
  
          /* Remove ALL backgrounds from top sites */
          .top-sites .top-site-outer,
          .top-sites .top-site-inner,
          .top-site-outer .tile,
          .tile,
          .shortcuts-refresh .top-sites-list .top-site-outer .tile,
          .shortcuts-refresh .top-sites-list:not(.dnd-active) .top-site-outer:is(.active, :focus, :hover) .tile {
            background: transparent !important;
            background-color: transparent !important;
            background-image: none !important;
            box-shadow: none !important;
            border: none !important;
          }

          /* Only opacity changes on hover */
          .top-sites .top-site-outer {
            opacity: 0.3 !important;
            transition: opacity 0.3s ease !important;
          }

          .top-sites .top-site-outer:hover {
            opacity: 1 !important;
          }

          /* Force transparent background for topsites section */
          .top-sites {
            --newtab-background-color-secondary: transparent !important;
          }

          /* ===========================
             🛠️  CUSTOMIZE MENU FIX
             =========================== */
  
          /* Restore proper background for customize menu */
          .customize-menu,
          .customize-menu.customize-animate-enter-done {
            background: var(--newtab-background-color) !important;
            background-color: var(--newtab-background-color) !important;
          }

          /* Ensure customize menu has proper styling */
          .customize-menu {
            box-shadow: none !important;
            border: none !important;
            border-radius: 0px !important;
          }

          /* Fix text visibility in customize menu */
          .customize-menu .section-title,
          .customize-menu .section-disclaimer,
          .customize-menu .personalize-button,
          .customize-menu label,
          .customize-menu input,
          .customize-menu button {
            color: var(--newtab-text-primary-color) !important }
        }

          /* ===========================
             🎭  HIDE ELEMENTS
             =========================== */

          /* Recent Activity */
        .body-wrapper.on .section-title,
        .body-wrapper.on .sections-list .section:last-of-type,
        .body-wrapper.on .topics {
          display: none !important;
        }

          /* Search bar */
          .search-wrapper .search-inner-wrapper {
          display: none !important;
          }
      '';
    };
  };
}