/**
 * Turnbridge House Design System Variables
 * Farmhouse Neutral Color Palette
 */

:root {
  /* ================================
     Color Palette - Farmhouse Neutral
     ================================ */

  /* Primary - Dark charcoal for text and strong elements */
  --color-primary-50: #f7f7f7;
  --color-primary-100: #e3e3e3;
  --color-primary-200: #c8c8c8;
  --color-primary-300: #a4a4a4;
  --color-primary-400: #818181;
  --color-primary-500: #666666;
  --color-primary-600: #515151;
  --color-primary-700: #4a4a4a;
  --color-primary-800: #3a3a3a;
  --color-primary-900: #2c2c2c;
  --color-primary-950: #1a1a1a;

  /* Secondary - Warm cream and beige tones */
  --color-secondary-50: #faf9f6;
  --color-secondary-100: #f3f0eb;
  --color-secondary-200: #e8e4dd;
  --color-secondary-300: #d8d4cc;
  --color-secondary-400: #c4beb4;
  --color-secondary-500: #b0a89c;
  --color-secondary-600: #9a9184;
  --color-secondary-700: #817869;
  --color-secondary-800: #6b6356;
  --color-secondary-900: #5a5347;
  --color-secondary-950: #2f2c26;

  /* Accent - Sage green for primary accent */
  --color-accent-50: #f6f7f5;
  --color-accent-100: #ebeee8;
  --color-accent-200: #d7dcd1;
  --color-accent-300: #bcc4b2;
  --color-accent-400: #969c8b;
  --color-accent-500: #7d8471;
  --color-accent-600: #656b5a;
  --color-accent-700: #525749;
  --color-accent-800: #44483d;
  --color-accent-900: #3a3d34;
  --color-accent-950: #1e201b;

  /* Neutral - Warm stone greys */
  --color-neutral-50: #faf9f7;
  --color-neutral-100: #f3f0eb;
  --color-neutral-200: #e8e4dd;
  --color-neutral-300: #d8d4cc;
  --color-neutral-400: #c4beb4;
  --color-neutral-500: #a39d93;
  --color-neutral-600: #837d73;
  --color-neutral-700: #6b655c;
  --color-neutral-800: #575249;
  --color-neutral-900: #4a453d;
  --color-neutral-950: #282521;

  /* Semantic Colors */
  --color-success-50: #f0fdf4;
  --color-success-100: #dcfce7;
  --color-success-500: #22c55e;
  --color-success-600: #16a34a;
  --color-success-700: #15803d;

  --color-warning-50: #fffbeb;
  --color-warning-100: #fef3c7;
  --color-warning-500: #f59e0b;
  --color-warning-600: #d97706;
  --color-warning-700: #b45309;

  --color-error-50: #fef2f2;
  --color-error-100: #fee2e2;
  --color-error-500: #ef4444;
  --color-error-600: #dc2626;
  --color-error-700: #b91c1c;

  --color-info-50: #eff6ff;
  --color-info-100: #dbeafe;
  --color-info-500: #3b82f6;
  --color-info-600: #2563eb;
  --color-info-700: #1d4ed8;

  /* Background & Surface */
  --color-bg-primary: #f3f0eb;
  --color-bg-secondary: #e8e4dd;
  --color-bg-tertiary: var(--color-secondary-50);
  --color-surface: #ffffff;
  --color-surface-raised: #ffffff;
  --color-surface-overlay: rgba(0, 0, 0, 0.5);

  /* Text Colors */
  --color-text-primary: #2c2c2c;
  --color-text-secondary: #4a4a4a;
  --color-text-tertiary: var(--color-neutral-500);
  --color-text-inverse: #f3f0eb;
  --color-text-link: var(--color-accent-600);
  --color-text-link-hover: var(--color-accent-700);

  /* Highlight/Terracotta accent for special emphasis */
  --color-highlight: #b56b45;
  --color-highlight-muted: #a35e3a;

  /* Border Colors */
  --color-border-light: var(--color-neutral-200);
  --color-border-medium: var(--color-neutral-300);
  --color-border-dark: var(--color-neutral-400);

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

  /* Font Families */
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', monospace;

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

  /* Line Heights */
  --leading-none: 1;
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;

  /* Font Weights */
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;

  /* 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 Scale
     ================================ */
  --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 */

  /* ================================
     Layout
     ================================ */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1536px;
  --container-max: 1200px;
  --container-padding: var(--space-4);

  /* ================================
     Borders & Radius
     ================================ */
  --radius-none: 0;
  --radius-sm: 0.125rem;  /* 2px */
  --radius-md: 0.375rem;  /* 6px */
  --radius-lg: 0.5rem;    /* 8px */
  --radius-xl: 0.75rem;   /* 12px */
  --radius-2xl: 1rem;     /* 16px */
  --radius-3xl: 1.5rem;   /* 24px */
  --radius-full: 9999px;

  --border-width-thin: 1px;
  --border-width-medium: 2px;
  --border-width-thick: 4px;

  /* ================================
     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);
  --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
  --shadow-inner: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);

  /* ================================
     Transitions
     ================================ */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
  --transition-slower: 500ms ease;

  /* ================================
     Z-Index Scale
     ================================ */
  --z-below: -1;
  --z-base: 0;
  --z-above: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-tooltip: 700;
  --z-toast: 800;

  /* ================================
     Breakpoints (for reference)
     ================================ */
  /*
   * sm: 640px
   * md: 768px
   * lg: 1024px
   * xl: 1280px
   * 2xl: 1536px
   */
}

/* ================================
   Responsive Typography Scale
   ================================ */
@media (min-width: 768px) {
  :root {
    --text-4xl: 2.5rem;   /* 40px */
    --text-5xl: 3.5rem;   /* 56px */
    --text-6xl: 4.5rem;   /* 72px */
  }
}

@media (min-width: 1024px) {
  :root {
    --container-padding: var(--space-6);
  }
}