/** @type {import('tailwindcss').Config} */
export default {
  darkMode: 'class',
  content: ['./index.html', './src/**/*.{js,ts,jsx,tsx}'],
  theme: {
    extend: {
      colors: {
        // Legacy brand palette — kept for backward compat with existing components
        brand: {
          50: '#eff6ff',
          100: '#dbeafe',
          200: '#bfdbfe',
          300: '#93c5fd',
          400: '#60a5fa',
          500: '#3b82f6',
          600: '#2563eb',
          700: '#1d4ed8',
          800: '#1e40af',
          900: '#1e3a8a',
        },
        sidebar: {
          light: '#f1f5f9',
          dark: '#0f172a',
        },
        // Design token colors — reference CSS vars so light/dark switch automatically
        bg: 'var(--bg)',
        surface: 'var(--surface)',
        'surface-2': 'var(--surface-2)',
        'surface-3': 'var(--surface-3)',
        line: 'var(--line)',
        'line-soft': 'var(--line-soft)',
        ink: 'var(--ink)',
        'ink-2': 'var(--ink-2)',
        'ink-3': 'var(--ink-3)',
        'ink-4': 'var(--ink-4)',
        accent: 'var(--accent)',
        'accent-2': 'var(--accent-2)',
        'accent-soft': 'var(--accent-soft)',
        good: 'var(--good)',
        warn: 'var(--warn)',
        bad: 'var(--bad)',
        info: 'var(--info)',
        violet: 'var(--violet)',
      },
      fontFamily: {
        sans: ['Geist', 'ui-sans-serif', 'system-ui', '-apple-system', 'sans-serif'],
        mono: ['Geist Mono', 'ui-monospace', 'SFMono-Regular', 'Menlo', 'monospace'],
      },
      animation: {
        'pulse-slow': 'pulse 3s cubic-bezier(0.4, 0, 0.6, 1) infinite',
        'fade-in': 'fadeIn 0.2s ease-out',
        'slide-in': 'slideIn 0.2s ease-out',
        'glow-pulse': 'glowPulse 2s ease-in-out infinite',
      },
      keyframes: {
        fadeIn: {
          '0%': { opacity: '0' },
          '100%': { opacity: '1' },
        },
        slideIn: {
          '0%': { transform: 'translateX(-10px)', opacity: '0' },
          '100%': { transform: 'translateX(0)', opacity: '1' },
        },
        glowPulse: {
          '0%, 100%': { opacity: '1' },
          '50%': { opacity: '0.4' },
        },
      },
    },
  },
  plugins: [],
};