/* ============================================
   MACEOTOMASYON - Design System Variables
   Premium Industrial Automation Theme
   ============================================ */

:root {
  /* ========== COLOR PALETTE ========== */
  
  /* Primary - Deep Industrial Blue */
  --primary-50: #e6f0ff;
  --primary-100: #b3d1ff;
  --primary-200: #80b3ff;
  --primary-300: #4d94ff;
  --primary-400: #1a75ff;
  --primary-500: #0052cc;  /* Main */
  --primary-600: #0041a3;
  --primary-700: #00317a;
  --primary-800: #002052;
  --primary-900: #001029;
  
  /* Secondary - Electric Cyan */
  --secondary-50: #e0f7fa;
  --secondary-100: #b2ebf2;
  --secondary-200: #80deea;
  --secondary-300: #4dd0e1;
  --secondary-400: #26c6da;
  --secondary-500: #00bcd4;  /* Main */
  --secondary-600: #00acc1;
  --secondary-700: #0097a7;
  --secondary-800: #00838f;
  --secondary-900: #006064;
  
  /* Accent - Vibrant Orange (CTA, highlights) */
  --accent-50: #fff3e0;
  --accent-100: #ffe0b2;
  --accent-200: #ffcc80;
  --accent-300: #ffb74d;
  --accent-400: #ffa726;
  --accent-500: #ff9800;  /* Main */
  --accent-600: #fb8c00;
  --accent-700: #f57c00;
  --accent-800: #ef6c00;
  --accent-900: #e65100;
  
  /* Neutral - Slate Gray */
  --neutral-0: #ffffff;
  --neutral-50: #f8fafc;
  --neutral-100: #f1f5f9;
  --neutral-200: #e2e8f0;
  --neutral-300: #cbd5e1;
  --neutral-400: #94a3b8;
  --neutral-500: #64748b;
  --neutral-600: #475569;
  --neutral-700: #334155;
  --neutral-800: #1e293b;
  --neutral-900: #0f172a;
  --neutral-950: #020617;
  
  /* Semantic Colors */
  --success: #10b981;
  --success-light: #d1fae5;
  --warning: #f59e0b;
  --warning-light: #fef3c7;
  --error: #ef4444;
  --error-light: #fee2e2;
  --info: #3b82f6;
  --info-light: #dbeafe;
  
  /* ========== GRADIENTS ========== */
  
  --gradient-primary: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-700) 100%);
  --gradient-secondary: linear-gradient(135deg, var(--secondary-500) 0%, var(--secondary-700) 100%);
  --gradient-accent: linear-gradient(135deg, var(--accent-400) 0%, var(--accent-600) 100%);
  --gradient-hero: linear-gradient(180deg, var(--neutral-900) 0%, var(--primary-900) 50%, var(--neutral-950) 100%);
  --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
  --gradient-dark-overlay: linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.8) 100%);
  --gradient-glow: radial-gradient(circle at center, var(--primary-400) 0%, transparent 70%);
  
  /* ========== TYPOGRAPHY ========== */
  
  /* Font Families */
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
  
  /* Font Sizes - Fluid Typography */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
  --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.25rem + 1.25vw, 2rem);
  --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 2.5rem);
  --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3rem);
  --text-5xl: clamp(3rem, 2rem + 5vw, 4.5rem);
  --text-6xl: clamp(3.75rem, 2.5rem + 6.25vw, 6rem);
  
  /* Font Weights */
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;
  
  /* Line Heights */
  --leading-none: 1;
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;
  
  /* Letter Spacing */
  --tracking-tighter: -0.05em;
  --tracking-tight: -0.025em;
  --tracking-normal: 0;
  --tracking-wide: 0.025em;
  --tracking-wider: 0.05em;
  --tracking-widest: 0.1em;
  
  /* ========== SPACING ========== */
  
  --space-0: 0;
  --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 */
  --space-24: 6rem;     /* 96px */
  --space-32: 8rem;     /* 128px */
  --space-40: 10rem;    /* 160px */
  --space-48: 12rem;    /* 192px */
  --space-64: 16rem;    /* 256px */
  
  /* Section Spacing */
  --section-padding-y: clamp(4rem, 8vw, 8rem);
  --section-padding-x: clamp(1rem, 5vw, 3rem);
  
  /* ========== BORDERS ========== */
  
  --radius-none: 0;
  --radius-sm: 0.25rem;   /* 4px */
  --radius-md: 0.5rem;    /* 8px */
  --radius-lg: 0.75rem;   /* 12px */
  --radius-xl: 1rem;      /* 16px */
  --radius-2xl: 1.5rem;   /* 24px */
  --radius-3xl: 2rem;     /* 32px */
  --radius-full: 9999px;
  
  --border-thin: 1px;
  --border-medium: 2px;
  --border-thick: 4px;
  
  /* ========== SHADOWS ========== */
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.05);
  
  /* Colored Shadows (for glow effects) */
  --shadow-primary-glow: 0 0 40px rgba(0, 82, 204, 0.4);
  --shadow-secondary-glow: 0 0 40px rgba(0, 188, 212, 0.4);
  --shadow-accent-glow: 0 0 40px rgba(255, 152, 0, 0.4);
  
  /* Card Shadows */
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-card-hover: 0 12px 40px rgba(0, 0, 0, 0.15);
  
  /* ========== TRANSITIONS ========== */
  
  --duration-instant: 0ms;
  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 500ms;
  --duration-slower: 700ms;
  
  --ease-linear: linear;
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  --ease-elastic: cubic-bezier(0.68, -0.6, 0.32, 1.6);
  
  /* Common Transitions */
  --transition-colors: color var(--duration-fast) var(--ease-out), 
                       background-color var(--duration-fast) var(--ease-out),
                       border-color var(--duration-fast) var(--ease-out);
  --transition-transform: transform var(--duration-normal) var(--ease-out);
  --transition-shadow: box-shadow var(--duration-normal) var(--ease-out);
  --transition-all: all var(--duration-normal) var(--ease-out);
  
  /* ========== Z-INDEX LAYERS ========== */
  
  --z-behind: -1;
  --z-base: 0;
  --z-above: 10;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-tooltip: 700;
  --z-max: 9999;
  
  /* ========== LAYOUT ========== */
  
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1440px;
  
  --header-height: 80px;
  --header-height-scrolled: 64px;
  
  /* ========== BREAKPOINTS (for reference) ========== */
  /* 
   * --bp-sm: 640px
   * --bp-md: 768px
   * --bp-lg: 1024px
   * --bp-xl: 1280px
   * --bp-2xl: 1440px
   */
}

/* Dark Mode Variables (optional) */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: var(--neutral-950);
    --bg-secondary: var(--neutral-900);
    --text-primary: var(--neutral-50);
    --text-secondary: var(--neutral-300);
  }
}

/* Light Mode Defaults */
:root {
  --bg-primary: var(--neutral-0);
  --bg-secondary: var(--neutral-50);
  --text-primary: var(--neutral-900);
  --text-secondary: var(--neutral-600);
}