/* ==========================================
   Smile Healing Centre - CSS Design Variables
   Light Healing Palette & Design System
   ========================================== */

:root {
  /* Brand Color Palette */
  --color-primary: #3B7A57;          /* Healing Sage Green */
  --color-primary-hover: #2F6346;
  --color-primary-light: #EBF5F0;    /* Pale Eucalyptus Tint */
  --color-primary-glow: rgba(59, 122, 87, 0.15);

  --color-secondary: #2C7A7B;        /* Serene Mint Teal */
  --color-secondary-hover: #236263;
  --color-secondary-light: #E6F4F4;

  --color-accent: #E89B53;           /* Warm Honey Amber Accent */
  --color-accent-hover: #D6873F;
  --color-accent-light: #FDF4EC;     /* Soft Blossom Warmth */
  
  --color-bg-main: #FAFAF7;          /* Pure Warm Linen (Light Background) */
  --color-bg-surface: #FFFFFF;       /* Card Surface White */
  --color-bg-subtle: #F2F7F4;        /* Soft Tinted Surface */

  --color-text-primary: #1A2F25;     /* Deep Forest Slate for readable contrast */
  --color-text-secondary: #4A6055;   /* Muted Sage Gray */
  --color-text-muted: #748A7F;
  --color-text-light: #94A89E;

  --color-border: #E1ECE6;           /* Subtle Botanical Border */
  --color-border-hover: #C5DACF;
  --color-divider: #ECF3EF;

  /* Typography Scales */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  --fs-hero: clamp(2.3rem, 4.8vw, 3.6rem);
  --fs-h1: clamp(2.0rem, 3.8vw, 2.8rem);
  --fs-h2: clamp(1.6rem, 3.0vw, 2.2rem);
  --fs-h3: clamp(1.2rem, 2.0vw, 1.5rem);
  --fs-h4: 1.125rem;
  --fs-body: 1rem;
  --fs-small: 0.875rem;
  --fs-tiny: 0.75rem;

  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;

  --lh-tight: 1.18;
  --lh-heading: 1.25;
  --lh-body: 1.65;

  /* Spatial Grid (8-Point System) */
  --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-8: 3rem;     /* 48px */
  --space-10: 4rem;    /* 64px */
  --space-12: 5rem;    /* 80px */
  --space-16: 6.5rem;  /* 104px */

  /* Border Radii Scale */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-pill: 9999px;

  /* Elevation Shadows */
  --shadow-sm: 0 4px 12px rgba(26, 47, 37, 0.04);
  --shadow-md: 0 8px 24px rgba(26, 47, 37, 0.06);
  --shadow-lg: 0 16px 40px rgba(26, 47, 37, 0.08);
  --shadow-glow: 0 10px 30px rgba(59, 122, 87, 0.12);
  --shadow-inner: inset 0 1px 2px rgba(255, 255, 255, 0.8);

  /* Transitions */
  --ease-smooth: cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-fast: 0.2s var(--ease-smooth);
  --transition-normal: 0.35s var(--ease-smooth);
  --transition-slow: 0.6s var(--ease-smooth);
}