// Design System Constants — L3 Detail Pages
// Color tokens reference global CSS variables for dark-mode support.
// Layout / spacing / animation / easing remain as JS constants.
//
// ⚠️ COMPLIANCE TRAP（Task #16 残留，刻意保留待用）:
// 本文件动画令牌与 CONTEXT.md 动效约束冲突（见下方各 ⚠️ 行），且
// design-system.test.ts 用 `// @ts-nocheck` 断言了这些「错误值」。
// 它是零生产消费者的死代码，仅作历史参考。请勿照抄带 ⚠️ 的令牌；
// 新代码请直接用 ScrollReveal 默认（duration 0.3 / stagger 0.05 /
// easing ease-ink [0.22, 1, 0.36, 1]）。要修正须同步改测试，否则必挂。

export const DESIGN_SYSTEM = Object.freeze({
  animation: {
    duration: {
      fast: '0.2s',
      normal: '0.4s', // ⚠️ 超目标：CONTEXT.md 入场目标 200-300ms，0.4s=400ms 超时
      slow: '0.6s', // ⚠️ P1：>300ms 目标（仍 ≤700ms 硬上限）
      slower: '0.8s', // ⚠️ P0：>700ms 硬上限违规（最严重）
      countUp: '2s',
    },
    easing: {
      smooth: 'cubic-bezier(0.4, 0, 0.2, 1)', // ⚠️ 非 ease-ink [0.22,1,0.36,1]
      bounce: 'cubic-bezier(0.34, 1.56, 0.64, 1)', // ⚠️ 弹性缓动，违反「禁 spring 内容入场」
      easeOut: 'cubic-bezier(0, 0, 0.2, 1)',
      easeInOut: 'cubic-bezier(0.4, 0, 0.6, 1)',
    },
    delay: {
      stagger: 0.08, // ⚠️ P2：>60ms（应为 ≤0.06，对齐 ScrollReveal 0.05）
      section: 0.15,
    },
  },

  spacing: {
    section: {
      py: 'py-20 lg:py-28',
      pyCompact: 'py-16 lg:py-20',
    },
    container: {
      default: 'max-w-7xl mx-auto px-4 sm:px-6 lg:px-8',
      narrow: 'max-w-5xl mx-auto px-4 sm:px-6 lg:px-8',
      wide: 'max-w-[1400px] mx-auto px-4 sm:px-6 lg:px-8',
    },
    grid: {
      gap: 'gap-6 lg:gap-8',
      gapSmall: 'gap-4 lg:gap-6',
    },
  },

  // Typography classes reference CSS variables for theme-aware sizing
  typography: {
    hero: {
      title: 'text-4xl md:text-5xl lg:text-6xl font-bold tracking-tight text-[var(--color-text-primary)]',
      subtitle: 'text-lg md:text-xl leading-relaxed text-[var(--color-text-secondary)]',
      description: 'text-base mt-4 max-w-2xl text-[var(--color-text-muted)]',
    },
    section: {
      title: 'text-3xl md:text-4xl font-bold tracking-tight text-[var(--color-text-primary)]',
      subtitle: 'text-lg mt-2 text-[var(--color-text-secondary)]',
      body: 'text-base leading-relaxed text-[var(--color-text-secondary)]',
    },
    card: {
      title: 'text-lg font-semibold text-[var(--color-text-primary)]',
      description: 'text-sm leading-relaxed text-[var(--color-text-muted)]',
    },
  },

  effects: {
    inkGlow: {
      border: 'conic-gradient(from var(--angle), transparent 0%, var(--color-brand) 10%, transparent 20%)',
      glow: 'radial-gradient(circle at var(--mouse-x) var(--mouse-y), rgba(var(--color-brand-rgb), 0.15) 0%, transparent 50%)',
      speed: '3s',
    },
    hover: {
      translateY: '-4px',
      shadow: 'shadow-xl',
      transition: 'all 0.3s cubic-bezier(0.4, 0, 0.2, 1)',
    },
    scroll: {
      fadeInUp: {
        initial: { opacity: 0, y: 24 },
        animate: { opacity: 1, y: 0 },
        viewport: { once: true, margin: '-80px' },
        transition: { duration: 0.6, ease: [0.16, 1, 0.3, 1] as const }, // ⚠️ P1：0.6s 超 300ms 目标
      },
      staggerChildren: {
        delay: 0.08,
      },
    },
  },

  // Color references map to CSS custom properties defined in globals.css
  // These are used for inline styles where Tailwind classes aren't feasible
  colors: {
    brand: {
      primary: 'var(--color-brand)',
      light: 'var(--color-brand-bg)',
      lighter: 'rgba(var(--color-brand-rgb), 0.04)',
      gradient: 'linear-gradient(135deg, var(--color-brand) 0%, #99182d 100%)',
    },
    neutral: {
      50: 'var(--color-bg-primary)',
      100: 'var(--color-bg-section)',
      200: 'var(--color-border-primary)',
      300: 'var(--color-text-hint)',
      400: 'var(--color-text-subtle)',
      500: 'var(--color-text-muted)',
      600: 'var(--color-text-secondary)',
      700: 'var(--color-text-primary)',
      800: 'var(--color-text-primary)',
      900: 'var(--color-text-primary)',
    },
    ink: {
      light: 'rgba(0, 0, 0, 0.03)',
      medium: 'rgba(0, 0, 0, 0.06)',
      texture: 'repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(0,0,0,.02) 10px, rgba(0,0,0,.02) 11px)',
    },
  },

  components: {
    card: {
      base: 'rounded-2xl border border-[var(--color-border-primary)] overflow-hidden transition-all duration-300 bg-[var(--color-bg-primary)]',
      hover: 'hover:border-[rgba(var(--color-brand-rgb),0.2)] hover:shadow-lg hover:-translate-y-1',
      padding: 'p-6 lg:p-8',
    },
    badge: {
      base: 'inline-flex items-center gap-1.5 px-3 py-1 rounded-full text-xs font-medium',
      variants: {
        primary: 'bg-[var(--color-brand-bg)] text-[var(--color-brand)]',
        secondary: 'bg-[var(--color-bg-tertiary)] text-[var(--color-text-secondary)]',
        success: 'bg-green-50 text-green-700',
        warning: 'bg-yellow-50 text-yellow-700',
      },
    },
    button: {
      primary: 'inline-flex items-center gap-2 px-6 py-3 text-white font-semibold rounded-lg shadow-md transition-all duration-200 bg-[var(--color-brand)] hover:brightness-110 hover:shadow-lg',
      secondary: 'inline-flex items-center gap-2 px-6 py-3 font-semibold rounded-lg border transition-all duration-200 bg-[var(--color-bg-primary)] text-[var(--color-text-secondary)] border-[var(--color-border-primary)] hover:border-[var(--color-text-hint)] hover:shadow-sm',
      ghost: 'inline-flex items-center gap-2 px-4 py-2 font-medium rounded-lg transition-colors duration-200 text-[var(--color-brand)] hover:bg-[var(--color-brand-bg)]',
    },
    metric: {
      container: 'text-center p-6 rounded-xl border bg-[var(--color-bg-section)] border-[var(--color-border-primary)]',
      value: 'text-3xl md:text-4xl font-bold mb-1 text-[var(--color-text-primary)]',
      label: 'text-sm text-[var(--color-text-subtle)]',
      description: 'text-xs mt-1 text-[var(--color-text-hint)]',
    },
  },
});

export type DesignSystem = typeof DESIGN_SYSTEM;