/* Shivam Engineering - Design System Variables */

:root {
  /* Brand Colors */
  --primary: #FECE14;            /* Golden Accent - industrial standard */
  --primary-hover: #e5b90d;      /* Darker Gold */
  --primary-rgb: 254, 206, 20;
  
  --secondary: #000000;          /* Sleek black */
  --secondary-hover: #111827;    /* Slate-900 */
  --secondary-rgb: 0, 0, 0;

  /* Neutrals (Tailwind/Radix UI inspired slate) */
  --neutral-50: #f9fafb;
  --neutral-100: #f3f4f6;
  --neutral-200: #e5e7eb;
  --neutral-300: #d1d5db;
  --neutral-400: #9ca3af;
  --neutral-500: #6b7280;
  --neutral-600: #4b5563;
  --neutral-700: #374151;
  --neutral-800: #1f2937;
  --neutral-900: #111827;
  --neutral-950: #030712;

  /* State Colors */
  --success: #16A34A;
  --warning: #D97706;
  --danger: #DC2626;
  --info: #0284c7;

  /* Semantic Interface Colors */
  --background: #ffffff;
  --foreground: var(--neutral-900);
  --surface: #ffffff;
  --surface-muted: var(--neutral-50);
  --surface-inverse: var(--neutral-950);
  --text: var(--neutral-900);
  --text-muted: var(--neutral-500);
  --text-inverse: #ffffff;
  
  --border: var(--neutral-200);
  --border-focus: var(--neutral-900);
  --ring: var(--primary);

  /* Fonts */
  --font-sans: 'Poppins', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'IBM Plex Mono', SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace;

  /* Spacing (4/8/12/16/24/32/48/64) */
  --space-1: 0.25rem;  /* 4px */
  --space-2: 0.5rem;   /* 8px */
  --space-3: 0.75rem;  /* 12px */
  --space-4: 1rem;     /* 16px */
  --space-5: 1.5rem;   /* 24px */
  --space-6: 2rem;     /* 32px */
  --space-7: 3rem;     /* 48px */
  --space-8: 4rem;     /* 64px */

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

  /* 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 -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-glow: 0 0 15px rgba(254, 206, 20, 0.3);
  --shadow-glow-strong: 0 0 25px rgba(254, 206, 20, 0.5);

  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.75);
  --glass-bg-dark: rgba(3, 7, 18, 0.75);
  --glass-border: rgba(255, 255, 255, 0.2);
  --glass-border-dark: rgba(255, 255, 255, 0.05);
  --glass-blur: 16px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Accessibility Focus Indicator */
:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}