/* ==========================================================================
   ELECTRO LIVE TECH (ELT) CENTRALIZED DESIGN SYSTEM & DESIGN TOKENS
   Strict adherence to 70-80% Neutral canvas, 15-20% Supporting borders, 5-10% Brand Accent
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
  /* --- 1. COLOR SYSTEM (70-80% Neutrals, 15-20% Supporting, 5-10% Accent) --- */
  --bg-primary: #f8fafc;          /* 75% Primary Canvas (Slate-50) */
  --bg-secondary: #ffffff;        /* Surface Cards / Panels */
  --bg-card: #ffffff;
  --bg-card-hover: #ffffff;
  --bg-surface-alt: #f1f5f9;      /* Supporting Surface (Slate-100) */
  --bg-glass: rgba(255, 255, 255, 0.95);
  
  --border-color: #e2e8f0;        /* Supporting Border (Slate-200) */
  --border-light: #f1f5f9;
  --border-glow: rgba(2, 132, 199, 0.25);
  
  /* Brand Accent Tokens (5-10%) */
  --brand-cyan: #0284c7;          /* Primary Accent (Sky-600) */
  --brand-blue: #2563eb;          /* Secondary Accent (Blue-600) */
  --brand-blue-hover: #1d4ed8;
  --brand-accent: linear-gradient(135deg, #0284c7 0%, #2563eb 100%);
  --brand-accent-soft: rgba(2, 132, 199, 0.08);
  --brand-accent-glow: 0 4px 14px rgba(2, 132, 199, 0.22);
  
  /* Text & Typography Colors */
  --text-primary: #0f172a;        /* High-contrast Slate-900 */
  --text-secondary: #334155;      /* Slate-700 */
  --text-muted: #64748b;          /* Slate-500 */
  --text-inverse: #ffffff;
  
  /* Semantic Status Feedback Tokens */
  --success: #16a34a;             /* Green-600 */
  --success-bg: rgba(22, 163, 74, 0.08);
  --warning: #d97706;             /* Amber-600 */
  --warning-bg: rgba(217, 119, 6, 0.08);
  --danger: #dc2626;              /* Red-600 */
  --danger-bg: rgba(220, 38, 38, 0.08);
  --info: #0284c7;
  --info-bg: rgba(2, 132, 199, 0.08);

  /* --- 2. TYPOGRAPHY SYSTEM --- */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  --fs-xs: 0.75rem;     /* 12px */
  --fs-sm: 0.85rem;     /* 13.6px */
  --fs-base: 0.95rem;   /* 15.2px */
  --fs-md: 1.1rem;      /* 17.6px */
  --fs-lg: 1.3rem;      /* 20.8px */
  --fs-xl: 1.6rem;      /* 25.6px */
  --fs-2xl: 2.1rem;     /* 33.6px */
  --fs-3xl: 2.8rem;     /* 44.8px */
  
  /* --- 3. LAYOUT & CONTAINER SPACING --- */
  --container-width: 1240px;
  --header-height: 76px;
  --mobile-nav-height: 60px;
  
  --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;

  /* --- 4. CORNER RADIUS SCALE --- */
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* --- 5. SHADOW & ELEVATION --- */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.07);
  --shadow-lg: 0 16px 36px rgba(15, 23, 42, 0.1);
  --shadow-xl: 0 24px 48px -12px rgba(15, 23, 42, 0.16);

  /* --- 6. TRANSITIONS --- */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);

  /* --- 7. Z-INDEX LAYERS --- */
  --z-sticky: 900;
  --z-header: 1000;
  --z-drawer: 1100;
  --z-modal: 1200;
  --z-toast: 1300;
}