/* ========================================
   MCC Design System Tokens v3.0
   Clean, flat, professional IT tool
   ======================================== */

:root {
  /* ============ COLOR SYSTEM ============ */
  --color-primary: #0078D4;
  --color-primary-hover: #106EBE;
  --color-primary-light: #DEECF9;
  --color-primary-dark: #004578;
  --color-primary-text: #ffffff;

  /* Semantic */
  --color-success: #107C10;
  --color-success-light: #DFF6DD;
  --color-error: #D13438;
  --color-error-light: #FDE7E9;
  --color-warning: #FF8C00;
  --color-warning-light: #FFF4CE;
  --color-info: #0078D4;
  --color-info-light: #DEECF9;

  /* Status */
  --color-pending: #8A8886;
  --color-processing: #0078D4;
  --color-completed: #107C10;
  --color-failed: #D13438;

  /* Text — solid, readable */
  --color-text-primary: #000000;
  --color-text-secondary: #404040;
  --color-text-tertiary: #808080;
  --color-text-disabled: #a0a0a0;
  --color-text-inverse: #ffffff;

  /* Surfaces — Win98 beige/silver */
  --color-bg-canvas: #d4d0c8;
  --color-bg-primary: #ece9d8;
  --color-bg-secondary: #d4d0c8;
  --color-bg-tertiary: #c0c0c0;
  --color-bg-hover: #dbd7ce;
  --color-bg-sidebar: #d4d0c8;
  --color-bg-header: #ece9d8;

  /* Borders — industrial gray */
  --color-border: #a0a0a0;
  --color-border-light: #c0beb8;
  --color-border-dark: #808080;
  --color-border-focus: #0078D4;

  /* Action borders for cards */
  --color-action-blue: #0078D4;
  --color-action-green: #107C10;
  --color-action-teal: #00B7C3;
  --color-action-purple: #5C2D91;
  --color-action-red: #D13438;
  --color-action-orange: #FF8C00;
  --color-action-pink: #E3008C;
  --color-action-gray: #605e5c;

  /* ============ SPACING (4px base) ============ */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;

  /* ============ TYPOGRAPHY ============ */
  --font-family-primary: 'Inter', -apple-system, 'Segoe UI', sans-serif;
  --font-family-display: 'Inter', -apple-system, sans-serif;
  --font-family-monospace: 'JetBrains Mono', 'Cascadia Code', 'Consolas', monospace;

  --font-size-xs: 11px;
  --font-size-sm: 12px;
  --font-size-base: 13px;
  --font-size-md: 14px;
  --font-size-lg: 16px;
  --font-size-xl: 18px;
  --font-size-2xl: 22px;
  --font-size-3xl: 26px;

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

  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* ============ SHADOWS (subtle, professional) ============ */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.05), 0 2px 4px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.06), 0 4px 6px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.08), 0 10px 10px rgba(0, 0, 0, 0.04);
  --shadow-focus: 0 0 0 2px rgba(0, 120, 212, 0.3);
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.08), 0 0 0 1px rgba(0, 0, 0, 0.02);
  --shadow-card-hover: 0 4px 12px rgba(0, 0, 0, 0.1), 0 0 0 1px rgba(0, 0, 0, 0.04);

  /* ============ BORDER RADIUS ============ */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-full: 9999px;

  /* ============ Z-INDEX ============ */
  --z-base: 0;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 1000;
  --z-modal: 1001;
  --z-toast: 2000;

  /* ============ TRANSITIONS ============ */
  --transition-fast: 120ms ease;
  --transition-medium: 200ms ease;
  --transition-slow: 350ms ease;

  /* ============ SIDEBAR ============ */
  --sidebar-width: 240px;
  --sidebar-collapsed: 60px;
}

/* ============ DARK MODE ============ */
[data-theme="dark"] {
  --color-primary: #4DA8FF;
  --color-primary-hover: #3B96E8;
  --color-primary-light: #1a3352;
  --color-primary-text: #ffffff;

  --color-success: #4CAF50;
  --color-success-light: #1a331a;
  --color-error: #F44336;
  --color-error-light: #331a1a;
  --color-warning: #FFA726;
  --color-warning-light: #332a1a;
  --color-info: #4DA8FF;
  --color-info-light: #1a3352;

  --color-text-primary: #e4e4e8;
  --color-text-secondary: #a8a8b0;
  --color-text-tertiary: #6e6e78;
  --color-text-disabled: #505058;

  --color-bg-canvas: #111114;
  --color-bg-primary: #1a1a1f;
  --color-bg-secondary: #222228;
  --color-bg-tertiary: #2c2c33;
  --color-bg-hover: #32323a;
  --color-bg-sidebar: #16161a;
  --color-bg-header: #1a1a1f;

  --color-border: #333338;
  --color-border-light: #28282d;
  --color-border-dark: #444449;

  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.35);
  --shadow-xl: 0 12px 28px rgba(0, 0, 0, 0.4);
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.03);
  --shadow-card-hover: 0 4px 12px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.05);
}