/* CSS Custom Properties - Tech Minimalist Design System */

:root {
  /* Colors - Warm & Welcoming Palette */
  --color-primary: #2C5F5D;      /* Teal - calm, professional, approachable */
  --color-secondary: #D4A574;    /* Warm gold - friendly, inviting */
  --color-accent: #7BA8A3;       /* Soft sage - balance, growth */
  --color-background: #FDFBF7;   /* Warm off-white - softer than pure white */
  --color-text: #3A3A3A;         /* Warm dark gray */
  --color-text-light: #6B6B6B;   /* Medium warm gray for secondary text */
  --color-muted: #F0EDE6;        /* Warm light beige for borders, backgrounds */
  --color-error: #D97757;        /* Warm terracotta for errors */
  --color-success: #6B9B7F;      /* Soft green for success states */
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-weight-regular: 400;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Font Sizes - 1.25 ratio scale */
  --font-size-base: 16px;
  --font-size-sm: 13px;          /* 16 / 1.25 */
  --font-size-lg: 20px;          /* 16 * 1.25 */
  --font-size-xl: 25px;          /* 20 * 1.25 */
  --font-size-2xl: 31px;         /* 25 * 1.25 */
  --font-size-3xl: 39px;         /* 31 * 1.25 */
  --font-size-4xl: 49px;         /* 39 * 1.25 */
  
  /* Line Heights */
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  
  /* Spacing - 8px base unit */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;
  --spacing-4xl: 80px;
  --spacing-5xl: 120px;
  
  /* Layout */
  --max-width: 1200px;
  --section-padding-mobile: var(--spacing-4xl);
  --section-padding-desktop: var(--spacing-5xl);
  
  /* Border Radius - Softer, more rounded */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  
  /* Shadows - Softer, more subtle */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 16px 32px rgba(0, 0, 0, 0.16);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
  
  /* Z-index layers */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal: 400;
  --z-popover: 500;
  --z-tooltip: 600;
  
  /* Breakpoints (for reference in media queries) */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;
}