-- Paper Tonic Modern - Color Palette
-- Extracted from original Paper Tonic colorscheme
-- Light, paper-like theme with subtle colors

local M = {}

-- Color format: { hex, 256-color, ansi }
-- hex: Hexadecimal color code for GUI (GVim/MacVim/terminal with true color)
-- 256: Integer 0-255 for 256-color terminals
-- ansi: ANSI color name for basic 16-color terminals

-- ============================================================================
-- Background Colors
-- ============================================================================

-- Main background: pure white paper
M.bg = {'#ffffff', 255, 'white'}

-- Darkest background: used for very strong contrast elements
M.bg_darkest = {'#505050', 244, 'gray'}

-- UI background: slightly off-white for UI elements (statusline, etc.)
M.bg_ui = {'#efefef', 0, 'darkgray'}

-- ============================================================================
-- Highlight Backgrounds (general)
-- ============================================================================

-- Selection/highlight backgrounds (neutral gray tones)
M.bg_hl_strong = {"#dddddd", 17, "white"}
M.bg_hl = {"#eeeeee", 250, "white"}
M.bg_hl_weak = {"#f7f2f2", 250, "white"}

-- Special highlight backgrounds (cyan/blue tones - for LSP references, search, etc.)
M.bg_hl_special_strong = {"#a3e0ff", 17, "cyan"}
M.bg_hl_special = {"#d4f0ff", 250, "cyan"}
M.bg_hl_special_weak = {"#e0eaff", 250, "cyan"}

-- Alternative special highlight (green tones - for diff additions, etc.)
M.bg_hl_special_alt_strong = {"#74f283", 17, "cyan"}
M.bg_hl_special_alt = {"#bff2cd", 250, "cyan"}

-- ============================================================================
-- Status Backgrounds (error, success, modified, fail)
-- ============================================================================

-- Error backgrounds (red/pink tones)
M.bg_error = {'#ffd7d7', 196, 'white'}
M.bg_error_weak = {'#ffefef', 196, 'white'}

-- Success background (green tone)
M.bg_success = {'#e0ece0', 196, 'white'}

-- Modified background (blue tone)
M.bg_modified = {'#e0e0ec', 196, 'white'}

-- Fail/warning background (red tone)
M.bg_fail = {'#ece0e0', 196, 'white'}

-- ============================================================================
-- Foreground Colors (text)
-- ============================================================================

-- Main text colors (gray scale, strongest to weakest)
M.fg_stronger = {'#444444', 236, 'darkgrey'}  -- Darkest text
M.fg_strong = {'#666666', 236, 'darkgrey'}    -- Dark text
M.fg = {'#8c8c8c', 244, 'gray'}               -- Normal text (default)
M.fg_weak = {'#9d9d9d', 251, 'gray'}          -- Light text (comments, less important)
M.fg_weaker = {'#bbbbbb', 251, 'gray'}        -- Lightest text (very subtle)

-- Exception foreground (reddish-brown for errors/exceptions)
M.fg_exception = {'#7c4444', 251, 'gray'}

-- ============================================================================
-- Status Foreground Colors
-- ============================================================================

-- Git/diff status indicators (used in statusline, signs, etc.)
M.success = {'#89af89', 196, 'white'}    -- Success/addition (green)
M.modified = {'#8989af', 196, 'white'}   -- Modified/change (blue)
M.fail = {'#af8989', 196, 'white'}       -- Fail/deletion (red)

-- ============================================================================
-- Alert/Diagnostic Colors
-- ============================================================================

-- Alert colors (errors, warnings - red/orange scale)
M.alert_strong = {'#d70000', 124, 'darkred'}  -- Strong error (bright red)
M.alert = {'#d75f00', 196, 'red'}             -- Normal alert (orange-red)
M.alert_weak = {'#000000', 203, 'red'}        -- Weak alert (black - used for text)

-- Question/info color (black - for prompts, info messages)
M.question = {'#000000', 0, 'black'}

-- ============================================================================
-- Primary Accent Colors (brownish-red tones)
-- ============================================================================

-- Primary accent: For "base" languages
-- Used for: PHP, JavaScript, Python, etc.
-- Languages using primary:
--   - PHP: always primary (whether standalone or in <?php ?> tags within HTML)
--   - JavaScript: always primary (standalone or embedded)
--   - Python: always primary
-- Note: Both PHP and JS use primary; acceptable since embedded JS in PHP is discouraged
M.primary_stronger = {"#7f4b4b", 236, "black"}  -- Darkest accent
M.primary_strong = {"#5a4444", 236, "black"}    -- Dark accent
M.primary = {"#6b5555", 244, "gray"}            -- Normal accent
M.primary_weak = {"#7c6666", 248, "darkgray"}   -- Light accent

-- ============================================================================
-- Language-Specific Color Palettes (for mixed-language contexts)
-- ============================================================================

-- IMPORTANT: Each language maintains its color identity regardless of where it appears.
-- A language always uses the same color, whether standalone or embedded in another language.
-- This creates consistent visual language recognition across all contexts.
--
-- Example: In a PHP file with HTML and CSS:
--   - PHP code: primary (brownish-red) - everywhere, including <?php ?> blocks
--   - HTML tags: c3 (blue) - everywhere, whether in .html or embedded in PHP
--   - CSS rules: c2 (green) - everywhere, whether in .css or <style> tags

-- Color 2: Green tones - CSS syntax
-- CSS maintains green coloring in <style> tags, CSS files, CSS-in-JS, etc.
M.c2_weak = {"#5e955e", 28, "darkgreen"}
M.c2 = {"#008700", 22, "darkgreen"}
M.c2_strong = {"#005a00", 22, "darkgreen"}

-- Color 3: Blue tones - HTML syntax
-- HTML maintains blue coloring in .html files, within PHP, within templates, etc.
M.c3_weak = {"#2d78b7", 20, "blue"}
M.c3 = {"#005faf", 19, "blue"}
M.c3_strong = {"#004f92", 17, "darkblue"}

-- Color 4: Cyan tones - Reserved/Future use
-- Available for additional language if needed (TypeScript? SQL?)
M.c4_weak = {"#78b7d5", 20, "blue"}
M.c4 = {"#56acd7", 19, "blue"}
M.c4_strong = {"#1596d7", 17, "darkblue"}

-- Color 5: Magenta/Pink tones - Template syntax
-- Used for: Django templates, Twig, Handlebars, Jinja
-- The base language keeps its color while template syntax uses c5
-- Example in Twig: HTML stays blue (c3), but {{ }}, {% %}, {# #} are magenta (c5)
M.c5_weak = {"#e846ac", 164, "magenta"}
M.c5 = {"#d70087", 164, "magenta"}
M.c5_strong = {"#ad006d", 164, "magenta"}

-- ============================================================================
-- Helper Constants
-- ============================================================================

-- Common constants for transparent/inherited values
M.NONE = 'NONE'
M.FG = 'FG'
M.BG = 'BG'

return M