/**
 * Design System Variables
 * Nisarg Consultancy - Professional Tax & Compliance
 * 
 * Color palette inspired by trust, professionalism, and finance industry standards.
 * Typography combines serif for elegance with sans-serif for readability.
 */

:root {
  /* ===========================================
     COLOR PALETTE
     =========================================== */
  
  /* Primary - Steel Blue */
  --color-primary-900: #080A08;
  --color-primary-800: #3A6FA0;
  --color-primary-700: #3A6FA0;
  --color-primary-600: #3A6FA0;
  --color-primary-500: #3A6FA0;
  --color-primary: var(--color-primary-800);
  
  /* Accent - Tropical Teal */
  --color-accent-600: #35B9BB;
  --color-accent-500: #35B9BB;
  --color-accent-400: #35B9BB;
  --color-accent-300: #35B9BB;
  --color-accent: var(--color-accent-500);
  
  /* Neutral - Grays */
  --color-neutral-900: #080A08;
  --color-neutral-800: #080A08;
  --color-neutral-700: #080A08;
  --color-neutral-600: #080A08;
  --color-neutral-500: #080A08;
  --color-neutral-400: #3A6FA0;
  --color-neutral-300: #3A6FA0;
  --color-neutral-200: #FEFDFD;
  --color-neutral-100: #FEFDFD;
  --color-neutral-50: #FDFEFF;
  
  /* Semantic Colors */
  --color-white: #FEFDFD;
  --color-black: #080A08;
  --color-success: #35B9BB;
  --color-error: #3A6FA0;
  
  /* ===========================================
     TYPOGRAPHY
     =========================================== */
  
  /* Font Families */
  --font-heading: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  /* Font Sizes - Fluid Scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.8125rem);
  --text-sm: clamp(0.8125rem, 0.75rem + 0.3vw, 0.875rem);
  --text-base: clamp(0.9375rem, 0.875rem + 0.3vw, 1rem);
  --text-lg: clamp(1.0625rem, 1rem + 0.3vw, 1.125rem);
  --text-xl: clamp(1.1875rem, 1.1rem + 0.4vw, 1.25rem);
  --text-2xl: clamp(1.375rem, 1.25rem + 0.6vw, 1.5rem);
  --text-3xl: clamp(1.625rem, 1.4rem + 1vw, 1.875rem);
  --text-4xl: clamp(1.875rem, 1.5rem + 1.5vw, 2.25rem);
  --text-5xl: clamp(2.25rem, 1.75rem + 2vw, 3rem);
  --text-6xl: clamp(2.75rem, 2rem + 3vw, 3.75rem);
  
  /* Line Heights */
  --leading-none: 1;
  --leading-tight: 1.2;
  --leading-snug: 1.35;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 1.8;
  
  /* Font Weights */
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  
  /* Letter Spacing */
  --tracking-tight: -0.02em;
  --tracking-normal: 0;
  --tracking-wide: 0.02em;
  --tracking-wider: 0.05em;
  
  /* ===========================================
     SPACING
     =========================================== */
  
  --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 */
  
  /* Section Spacing */
  --section-padding-y: clamp(4rem, 8vw, 7rem);
  --section-padding-x: clamp(1.25rem, 5vw, 2rem);
  
  /* ===========================================
     LAYOUT
     =========================================== */
  
  --container-max: 1200px;
  --container-narrow: 800px;
  --container-wide: 1400px;
  
  /* ===========================================
     BORDERS & RADIUS
     =========================================== */
  
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  --border-width: 1px;
  --border-color: var(--color-neutral-200);
  
  /* ===========================================
     SHADOWS
     =========================================== */
  
  --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  /* ===========================================
     TRANSITIONS
     =========================================== */
  
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
  
  /* ===========================================
     Z-INDEX SCALE
     =========================================== */
  
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal: 400;
  --z-tooltip: 500;
}