/* ============================================
   MergeUi Design Tokens
   B(디자인) 정의 — 전체 프로젝트 단일 소스
   ============================================ */

:root {
  /* Brand */
  --merge-brand: #6C5CE7;
  --merge-brand-light: #8B7CF0;
  --merge-brand-dark: #5A4BD1;
  --merge-accent: #22D3EE;
  --merge-accent2: #A78BFA;

  /* Background */
  --merge-bg-base: #06060A;
  --merge-bg-raised: #0E0E14;
  --merge-bg-surface: #16161E;
  --merge-bg-glass: rgba(14, 14, 20, 0.6);

  /* Text */
  --merge-text-primary: #F4F4F5;
  --merge-text-secondary: #A1A1AA;
  /* WCAG AA 통과: #80808A on #06060A = 4.95:1 (이전 #71717A는 4.07:1로 Fail) */
  --merge-text-muted: #80808A;

  /* Border */
  --merge-border: rgba(255,255,255,0.06);
  --merge-border-strong: rgba(255,255,255,0.1);

  /* Status */
  --merge-success: #22C55E;
  --merge-warning: #FBBF24;
  --merge-error: #EF4444;
  --merge-info: #3B82F6;

  /* Glow */
  --merge-glow-brand: rgba(108,92,231,0.15);

  /* Admin */
  --merge-admin-primary: #EF4444;
  --merge-admin-secondary: #F97316;
  --merge-admin-active-bg: rgba(239,68,68,0.1);
  --merge-admin-active-text: #FCA5A5;

  /* Typography */
  --merge-font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing (8px grid) — 4의 배수 엄격 준수 */
  --merge-space-1: 4px;
  --merge-space-2: 8px;
  --merge-space-3: 12px;
  --merge-space-4: 16px;
  /* @deprecated --merge-space-5: 20px — 8px 그리드 정합성 위해 24px(--merge-space-6)로 통일.
     기존 코드 호환을 위해 24px로 매핑. 신규 코드는 --merge-space-6 사용 권장. */
  --merge-space-5: 24px;
  --merge-space-6: 24px;
  --merge-space-7: 32px;
  --merge-space-8: 48px;
  --merge-space-9: 64px;

  /* Radius */
  --merge-radius-sm: 6px;
  --merge-radius-md: 8px;
  --merge-radius-lg: 12px;
  --merge-radius-full: 999px;

  /* Shadows — Quiet Quality */
  --merge-shadow-card: 0 1px 2px rgba(0,0,0,0.04), 0 1px 3px rgba(0,0,0,0.06);
  --merge-shadow-card-hover: 0 2px 4px rgba(0,0,0,0.05), 0 4px 12px rgba(0,0,0,0.08);

  /* ============================================
     Chart Palette — Deuteranopia-Safe 8색
     명세: design/chart-palette.md (2026-04-16)
     인접 색상 간 명도 차이 15%+, 적/녹 직접 인접 배치 금지
     기본값은 다크 모드(:root) 기준 — 채도 +10%, 명도 +5% 보정값
     ============================================ */
  --merge-chart-1: #818CF8; /* Indigo  — Primary data series */
  --merge-chart-2: #22D3EE; /* Cyan    — Secondary data */
  --merge-chart-3: #FBBF24; /* Amber   — Comparison / highlight */
  --merge-chart-4: #FB7185; /* Rose    — Alert / negative */
  --merge-chart-5: #34D399; /* Emerald — Positive / growth */
  --merge-chart-6: #A78BFA; /* Violet  — Tertiary data */
  --merge-chart-7: #FB923C; /* Orange  — Supplementary */
  --merge-chart-8: #94A3B8; /* Slate   — Neutral / baseline */

  /* ============================================
     Backward compatibility aliases — 기존 코드 호환용
     @deprecated 신규 코드는 --merge-* 토큰을 직접 사용할 것.
     별칭은 기존 페이지/컴포넌트 후방 호환 목적으로만 유지되며,
     향후 메이저 버전에서 제거 예정. 새 별칭 추가 금지.
     ============================================ */
  --brand: var(--merge-brand);             /* @deprecated → --merge-brand */
  --brand-light: var(--merge-brand-light); /* @deprecated → --merge-brand-light */
  --brand-dark: var(--merge-brand-dark);   /* @deprecated → --merge-brand-dark */
  --accent: var(--merge-accent);           /* @deprecated → --merge-accent */
  --accent2: var(--merge-accent2);         /* @deprecated → --merge-accent2 */
  --bg-base: var(--merge-bg-base);         /* @deprecated → --merge-bg-base */
  --bg-raised: var(--merge-bg-raised);     /* @deprecated → --merge-bg-raised */
  --bg-surface: var(--merge-bg-surface);   /* @deprecated → --merge-bg-surface */
  --bg-glass: var(--merge-bg-glass);       /* @deprecated → --merge-bg-glass */
  --text-primary: var(--merge-text-primary);     /* @deprecated → --merge-text-primary */
  --text-secondary: var(--merge-text-secondary); /* @deprecated → --merge-text-secondary */
  --text-muted: var(--merge-text-muted);         /* @deprecated → --merge-text-muted */
  --border: var(--merge-border);                 /* @deprecated → --merge-border */
  --border-strong: var(--merge-border-strong);   /* @deprecated → --merge-border-strong */
  --success: var(--merge-success);   /* @deprecated → --merge-success */
  --warning: var(--merge-warning);   /* @deprecated → --merge-warning */
  --glow-brand: var(--merge-glow-brand); /* @deprecated → --merge-glow-brand */
  --font: var(--merge-font);             /* @deprecated → --merge-font */
}

/* Light Mode */
[data-theme="light"] {
  --merge-bg-base: #FAFAFA;
  --merge-bg-raised: #FFFFFF;
  --merge-bg-surface: #F4F4F5;
  --merge-bg-glass: rgba(255, 255, 255, 0.8);
  --merge-text-primary: #18181B;
  --merge-text-secondary: #52525B;
  /* WCAG AA 통과: #5B5B66 on #FAFAFA = 5.92:1 (이전 #737380은 4.0:1로 Fail) */
  --merge-text-muted: #5B5B66;
  --merge-border: rgba(0,0,0,0.06);
  --merge-border-strong: rgba(0,0,0,0.12);
  --merge-glow-brand: rgba(108,92,231,0.08);
  --merge-admin-active-bg: rgba(239,68,68,0.06);
  --merge-admin-active-text: #DC2626;
  --merge-shadow-card: 0 1px 2px rgba(15,23,42,0.04), 0 1px 3px rgba(15,23,42,0.06);
  --merge-shadow-card-hover: 0 2px 4px rgba(15,23,42,0.06), 0 6px 16px rgba(15,23,42,0.08);

  /* Chart Palette — Light Mode (원본 채도/명도) */
  --merge-chart-1: #6366F1; /* Indigo */
  --merge-chart-2: #06B6D4; /* Cyan */
  --merge-chart-3: #F59E0B; /* Amber */
  --merge-chart-4: #F43F5E; /* Rose */
  --merge-chart-5: #10B981; /* Emerald */
  --merge-chart-6: #8B5CF6; /* Violet */
  --merge-chart-7: #F97316; /* Orange */
  --merge-chart-8: #64748B; /* Slate */
}