import type { Config } from "tailwindcss";

const config: Config = {
  // Dark is the default; light mode activates when `.light` is NOT absent (i.e. dark when no `.light` class)
  darkMode: ["selector", ":root:not(.light)"],
  content: [
    "./pages/**/*.{js,ts,jsx,tsx,mdx}",
    "./components/**/*.{js,ts,jsx,tsx,mdx}",
    "./app/**/*.{js,ts,jsx,tsx,mdx}",
    "./lib/**/*.{js,ts,jsx,tsx}",
  ],
  theme: {
    extend: {
      colors: {
        // Semantic tokens — reference CSS custom properties
        background: "hsl(var(--background))",
        foreground: "hsl(var(--foreground))",
        card: {
          DEFAULT: "hsl(var(--card))",
          foreground: "hsl(var(--card-foreground))",
        },
        popover: {
          DEFAULT: "hsl(var(--popover))",
          foreground: "hsl(var(--popover-foreground))",
        },
        primary: {
          DEFAULT: "hsl(var(--primary))",
          foreground: "hsl(var(--primary-foreground))",
        },
        secondary: {
          DEFAULT: "hsl(var(--secondary))",
          foreground: "hsl(var(--secondary-foreground))",
        },
        muted: {
          DEFAULT: "hsl(var(--muted))",
          foreground: "hsl(var(--muted-foreground))",
        },
        accent: {
          DEFAULT: "hsl(var(--accent))",
          foreground: "hsl(var(--accent-foreground))",
        },
        destructive: {
          DEFAULT: "hsl(var(--destructive))",
          foreground: "hsl(var(--destructive-foreground))",
        },
        border: "hsl(var(--border))",
        input: "hsl(var(--input))",
        ring: "hsl(var(--ring))",

        // Direct CSS var tokens (non-HSL)
        canvas: {
          DEFAULT: "var(--color-bg-primary)",
          secondary: "var(--color-bg-secondary)",
          elevated: "var(--color-bg-elevated)",
        },
        ink: {
          DEFAULT: "var(--color-text-primary)",
          secondary: "var(--color-text-secondary)",
          muted: "var(--color-text-muted)",
        },
        "brand-accent": {
          DEFAULT: "var(--color-accent)",
          hover: "var(--color-accent-hover)",
          active: "var(--color-accent-active)",
          fg: "var(--color-accent-foreground)",
        },
        edge: {
          DEFAULT: "var(--color-border)",
          hover: "var(--color-border-hover)",
        },
        success: {
          DEFAULT: "var(--color-success)",
          bg: "var(--color-success-bg)",
        },
        warning: {
          DEFAULT: "var(--color-warning)",
          bg: "var(--color-warning-bg)",
        },
        error: {
          DEFAULT: "var(--color-error)",
          bg: "var(--color-error-bg)",
        },
        info: {
          DEFAULT: "var(--color-info)",
          bg: "var(--color-info-bg)",
        },
        "code-surface": {
          DEFAULT: "var(--color-code-bg)",
          text: "var(--color-code-text)",
        },

        // Brand palette
        brand: {
          50: "#f5f3ff",
          100: "#ede9fe",
          200: "#ddd6fe",
          300: "#c4b5fd",
          400: "#a78bfa",
          500: "#8b5cf6",
          600: "#7c3aed",
          700: "#6d28d9",
          800: "#5b21b6",
          900: "#4c1d95",
          950: "#2e1065",
        },

        // Surface (neutral) palette
        surface: {
          50: "#fafafa",
          100: "#f4f4f5",
          200: "#e4e4e7",
          300: "#d4d4d8",
          400: "#a1a1aa",
          500: "#71717a",
          600: "#52525b",
          700: "#3f3f46",
          800: "#27272a",
          850: "#1f1f23",
          900: "#18181b",
          950: "#09090b",
        },
      },

      fontFamily: {
        sans: ["var(--font-inter)", "system-ui", "sans-serif"],
        mono: ["var(--font-jetbrains-mono)", "ui-monospace", "monospace"],
      },

      borderRadius: {
        lg: "var(--radius)",
        md: "calc(var(--radius) - 2px)",
        sm: "calc(var(--radius) - 4px)",
      },

      transitionDuration: {
        fast: "100ms",
        normal: "200ms",
        slow: "300ms",
      },

      animation: {
        "fade-in": "fadeIn 200ms ease forwards",
        "fade-out": "fadeOut 200ms ease forwards",
        "slide-up": "slideUp 300ms ease forwards",
        "slide-down": "slideDown 300ms ease forwards",
        "slide-down-out": "slideDownOut 300ms ease forwards",
        "scale-in": "scaleIn 200ms ease forwards",
        "scale-out": "scaleOut 200ms ease forwards",
        shimmer: "shimmer 2s linear infinite",
        spin: "spin 1s linear infinite",
        "pulse-soft": "pulseSoft 2s cubic-bezier(0.4, 0, 0.6, 1) infinite",
        "progress-bar": "progress linear forwards",
      },

      keyframes: {
        fadeIn: {
          "0%": { opacity: "0" },
          "100%": { opacity: "1" },
        },
        fadeOut: {
          "0%": { opacity: "1" },
          "100%": { opacity: "0" },
        },
        slideUp: {
          "0%": { transform: "translateY(8px)", opacity: "0" },
          "100%": { transform: "translateY(0)", opacity: "1" },
        },
        slideDown: {
          "0%": { transform: "translateY(-8px)", opacity: "0" },
          "100%": { transform: "translateY(0)", opacity: "1" },
        },
        slideDownOut: {
          "0%": { transform: "translateY(0)", opacity: "1" },
          "100%": { transform: "translateY(8px)", opacity: "0" },
        },
        scaleIn: {
          "0%": { transform: "scale(0.95)", opacity: "0" },
          "100%": { transform: "scale(1)", opacity: "1" },
        },
        scaleOut: {
          "0%": { transform: "scale(1)", opacity: "1" },
          "100%": { transform: "scale(0.95)", opacity: "0" },
        },
        shimmer: {
          "0%": { backgroundPosition: "-200% 0" },
          "100%": { backgroundPosition: "200% 0" },
        },
        pulseSoft: {
          "0%, 100%": { opacity: "1" },
          "50%": { opacity: "0.5" },
        },
        progress: {
          from: { transform: "scaleX(1)" },
          to: { transform: "scaleX(0)" },
        },
      },
    },
  },
  plugins: [],
};

export default config;