/* =========================================================
   DESIGN TOKENS — CSS Custom Properties
   ========================================================= */

:root {
  /* ── Colors ── */
  --color-primary: #6366f1;
  --color-primary-light: #818cf8;
  --color-primary-dark: #4f46e5;
  --color-primary-rgb: 99, 102, 241;

  --color-success: #10b981;
  --color-success-light: #34d399;
  --color-success-rgb: 16, 185, 129;

  --color-warning: #f59e0b;
  --color-warning-rgb: 245, 158, 11;

  --color-danger: #ef4444;
  --color-danger-rgb: 239, 68, 68;

  --color-info: #06b6d4;
  --color-info-rgb: 6, 182, 212;

  /* ── Neutral Palette ── */
  --color-bg:          #0d0d14;
  --color-bg-2:        #12121e;
  --color-bg-3:        #1a1a2e;
  --color-surface:     #1e1e30;
  --color-surface-2:   #252540;
  --color-surface-3:   #2e2e50;
  --color-border:      rgba(255, 255, 255, 0.08);
  --color-border-2:    rgba(255, 255, 255, 0.15);
  --color-text:        #e2e8f0;
  --color-text-2:      #94a3b8;
  --color-text-3:      #64748b;
  --color-text-inverse:#0d0d14;

  /* ── Spacing Scale ── */
  --space-1: 0.25rem;   /* 4px  */
  --space-2: 0.5rem;    /* 8px  */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */

  /* ── Border Radius ── */
  --radius-sm: 4px;
  --radius:    8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* ── Shadows ── */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.3), 0 1px 2px rgba(0,0,0,0.2);
  --shadow:     0 4px 6px rgba(0,0,0,0.3), 0 2px 4px rgba(0,0,0,0.2);
  --shadow-md:  0 10px 25px rgba(0,0,0,0.35), 0 4px 10px rgba(0,0,0,0.2);
  --shadow-lg:  0 20px 50px rgba(0,0,0,0.4), 0 8px 20px rgba(0,0,0,0.25);
  --shadow-glow: 0 0 20px rgba(var(--color-primary-rgb), 0.4);
  --shadow-glow-sm: 0 0 10px rgba(var(--color-primary-rgb), 0.3);

  /* ── Typography ── */
  --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  --font-size-base: 16px;
  --font-size-xs:   0.75rem;
  --font-size-sm:   0.875rem;
  --font-size-md:   1rem;
  --font-size-lg:   1.125rem;
  --font-size-xl:   1.25rem;
  --font-size-2xl:  1.5rem;
  --font-size-3xl:  2rem;
  --font-size-4xl:  2.75rem;
  --font-size-5xl:  3.5rem;

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-tight:  1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed:1.75;

  /* ── Animation ── */
  --duration-fast:   150ms;
  --duration-normal: 250ms;
  --duration-slow:   400ms;
  --duration-slower: 600ms;
  --duration-slowest:800ms;

  --ease-default:  cubic-bezier(0.4, 0, 0.2, 1);
  --ease-in:       cubic-bezier(0.4, 0, 1, 1);
  --ease-out:      cubic-bezier(0, 0, 0.2, 1);
  --ease-elastic:  cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-bounce:   cubic-bezier(0.68, -0.55, 0.265, 1.55);

  /* ── Layout ── */
  --sidebar-width: 220px;
  --topbar-height: 60px;
  --content-max-width: 1280px;
  --z-base:    0;
  --z-raised: 10;
  --z-dropdown:100;
  --z-sticky: 200;
  --z-modal:  500;
  --z-toast:  600;
}

/* Light theme overrides */
[data-theme="light"] {
  --color-bg:         #f8f9fc;
  --color-bg-2:       #f0f2f8;
  --color-bg-3:       #e8ebf5;
  --color-surface:    #ffffff;
  --color-surface-2:  #f3f4f8;
  --color-surface-3:  #eaecf5;
  --color-border:     rgba(0, 0, 0, 0.08);
  --color-border-2:   rgba(0, 0, 0, 0.15);
  --color-text:       #1e1e30;
  --color-text-2:     #4a5568;
  --color-text-3:     #94a3b8;
  --color-text-inverse: #ffffff;
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow:     0 4px 6px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-md:  0 10px 25px rgba(0,0,0,0.1), 0 4px 10px rgba(0,0,0,0.06);
  --shadow-lg:  0 20px 50px rgba(0,0,0,0.12), 0 8px 20px rgba(0,0,0,0.08);
}