{
  config,
  pkgs,
  ...
}: let
  vars = import ./variables.nix;
in {
  # Picom compositor configuration
  # CRT-inspired effects: green glow shadows, transparency, blur, rounded corners

  services.picom = {
    enable = true;

    backend = "glx";
    vSync = true;

    # Opacity settings
    opacity = 0.95;
    activeOpacity = 0.95;
    inactiveOpacity = 0.90;

    opacityRules = [
      "90:class_g = 'Xfce4-terminal'"
      "90:class_g = 'xfce4-terminal'"
      "95:class_g = 'Thunar'"
      "95:class_g = 'Mousepad'"
      "90:class_g = 'Rofi'"
      "100:class_g = 'Firefox'"
      "100:class_g = 'Chromium'"
    ];

    # Fading
    fade = true;
    fadeDelta = 5;
    fadeSteps = [ 0.028 0.03 ];

    # Shadows - CRT green glow effect
    shadow = true;
    shadowOpacity = 0.6;
    shadowOffsets = [ (-15) (-15) ];
    shadowRadius = 20;

    # CRT green glow color (hex format: #RRGGBB)
    shadowColor = "#00FF00";

    shadowExclude = [
      "name = 'Notification'"
      "class_g = 'Conky'"
      "class_g ?= 'Notify-osd'"
      "class_g = 'Cairo-clock'"
      "_GTK_FRAME_EXTENTS@:c"
    ];

    # Blur settings
    blur = {
      enable = true;
      method = "dual_kawase";
      strength = 6;
    };

    blurExclude = [
      "window_type = 'dock'"
      "window_type = 'desktop'"
      "_GTK_FRAME_EXTENTS@:c"
    ];

    # Rounded corners - 12px radius
    cornerRadius = 12;

    roundedCornersExclude = [
      "window_type = 'dock'"
      "window_type = 'desktop'"
    ];

    # Window animations (picom-pijulius style)
    # Note: Standard picom may not support all animation options
    # If animations cause issues, these can be removed
    settings = {
      # Animation settings (if using picom-pijulius)
      animations = true;
      animation-stiffness = 200;
      animation-window-mass = 0.5;
      animation-dampening = 20;
      animation-clamping = false;

      # Animation for window open - slide down (CRT scan-line effect)
      animation-for-open-window = "slide-down";

      # Animation for window close - slide up
      animation-for-unmap-window = "slide-up";

      # Animation for transient windows - zoom
      animation-for-transient-window = "zoom";

      # Focus/unfocus animations
      animation-for-prev-tag = "minimize";
      animation-for-next-tag = "slide-down";

      # Additional GLX backend settings
      glx-no-stencil = true;
      glx-no-rebind-pixmap = true;
      use-damage = true;

      # Detect settings
      detect-rounded-corners = true;
      detect-client-opacity = true;
      detect-transient = true;
      detect-client-leader = true;

      # Window type settings
      wintypes = {
        tooltip = {
          fade = true;
          shadow = false;
          opacity = 0.90;
          focus = true;
          full-shadow = false;
        };
        dock = {
          shadow = false;
          clip-shadow-above = true;
        };
        dnd = {
          shadow = false;
        };
        popup_menu = {
          opacity = 0.90;
          shadow = true;
        };
        dropdown_menu = {
          opacity = 0.90;
          shadow = true;
        };
      };
    };
  };
}