/* ===================================
   Chaudhari House Design System
   CSS Custom Properties (Variables)
   =================================== */

:root {
  /* ===== Color Palette ===== */

  /* Primary Colors - Based on Logo (70% #0B3D2E + 30% #D4AF37) */
  --color-primary: #0B3D2E;        /* Deep Forest Green - 70% dominant */
  --color-primary-dark: #082C21;   /* Darker Green */
  --color-primary-light: #0F5239;  /* Lighter Green */
  --color-accent: #D4AF37;         /* Gold - 30% accent */
  --color-accent-dark: #B8941F;    /* Darker Gold */
  --color-accent-light: #E8C865;   /* Lighter Gold */

  /* Neutral Colors */
  --color-bg: #ffffff;
  --color-bg-light: #f9fafb;
  --color-bg-dark: #f3f4f6;
  --color-text: #1f2937;
  --color-text-light: #6b7280;
  --color-text-muted: #9ca3af;

  /* Gray Scale */
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;

  /* Semantic Colors */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --color-info: #3b82f6;

  /* ===== Typography ===== */

  /* Font Families (Apple-like system stack) */
  --font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Segoe UI', Roboto, 'Helvetica Neue', Arial, system-ui, sans-serif;
  --font-family-heading: -apple-system, 'SF Pro Display', 'Segoe UI', Roboto, system-ui, sans-serif;

  /* Font Sizes */
  --font-size-xs: 0.75rem;      /* 12px */
  --font-size-sm: 0.875rem;     /* 14px */
  --font-size-base: 1rem;       /* 16px */
  --font-size-lg: 1.125rem;     /* 18px */
  --font-size-xl: 1.25rem;      /* 20px */
  --font-size-2xl: 1.5rem;      /* 24px */
  --font-size-3xl: 1.875rem;    /* 30px */
  --font-size-4xl: 2.25rem;     /* 36px */
  --font-size-5xl: 3rem;        /* 48px */
  --font-size-6xl: 3.75rem;     /* 60px */

  /* Font Weights */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Line Heights */
  --line-height-tight: 1.25;
  --line-height-snug: 1.375;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 2;

  /* ===== Spacing Scale (8px base) ===== */

  --spacing-xs: 0.5rem;         /* 8px */
  --spacing-sm: 1rem;           /* 16px */
  --spacing-md: 1.5rem;         /* 24px */
  --spacing-lg: 2rem;           /* 32px */
  --spacing-xl: 3rem;           /* 48px */
  --spacing-2xl: 4rem;          /* 64px */
  --spacing-3xl: 6rem;          /* 96px */
  --spacing-4xl: 8rem;          /* 128px */

  /* ===== Layout ===== */

  /* Container Widths */
  --container-xs: 640px;
  --container-sm: 768px;
  --container-md: 1024px;
  --container-lg: 1280px;
  --container-xl: 1536px;
  --container-max: 1200px;

  /* Breakpoints (for reference in JS) */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;

  /* ===== Effects & Transitions ===== */

  /* Border Radius */
  --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-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-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;

  /* Z-Index Scale */
  --z-base: 1;
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;

  /* ===== Component-Specific ===== */

  /* Header */
  --header-height: 80px;
  --header-height-mobile: 64px;

  /* Button */
  --button-padding-y: 0.75rem;
  --button-padding-x: 1.5rem;
  --button-font-size: var(--font-size-base);
  --button-border-radius: var(--radius-lg);

  /* Card */
  --card-padding: var(--spacing-lg);
  --card-border-radius: var(--radius-xl);
  --card-shadow: var(--shadow-md);
  --card-shadow-hover: var(--shadow-xl);

  /* Form */
  --input-padding-y: 0.75rem;
  --input-padding-x: 1rem;
  --input-border-radius: var(--radius-md);
  --input-border-color: var(--color-gray-300);
  --input-focus-border-color: var(--color-primary);

  /* ===== Gradients ===== */

  --gradient-primary: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  --gradient-accent: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 100%);
  --gradient-dark: linear-gradient(135deg, #1f2937 0%, #111827 100%);
  --gradient-light: linear-gradient(180deg, #ffffff 0%, var(--color-bg-light) 100%);
}

/* ===== Dark Mode Support (Optional) ===== */

@media (prefers-color-scheme: dark) {
  :root {
    /* Uncomment to enable dark mode */
    /*
    --color-bg: #111827;
    --color-bg-light: #1f2937;
    --color-bg-dark: #374151;
    --color-text: #f9fafb;
    --color-text-light: #d1d5db;
    --color-text-muted: #9ca3af;
    */
  }
}

/* ===== Accessibility: Reduced Motion ===== */

@media (prefers-reduced-motion: reduce) {
  :root {
    --transition-fast: 0ms;
    --transition-base: 0ms;
    --transition-slow: 0ms;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}