/* ==========================================================================
   OpenBird Solutions Design System — Variables & Tokens
   Apple-inspired, clean minimalist, glassmorphic UI
   ========================================================================== */

:root {
  /* Brand Colors */
  --brand-primary: #0066cc;
  --brand-primary-hover: #0052a3;
  --brand-vibrant: #0071e3;
  --brand-sky: #2997ff;
  --brand-glow: rgba(0, 102, 204, 0.25);
  --brand-light: #e8f2fc;
  
  /* Primary Surface (Apple Off-White) */
  --bg-primary: #fbfbfd;
  --bg-secondary: #f5f5f7;
  --bg-tertiary: #ebebed;
  --bg-card: rgba(255, 255, 255, 0.75);
  --bg-card-hover: rgba(255, 255, 255, 0.95);
  
  /* Dark Contrast Sections */
  --dark-bg: #07090e;
  --dark-surface: #0d121c;
  --dark-surface-hover: #131b29;
  --dark-card: rgba(13, 18, 28, 0.78);
  --dark-border: rgba(255, 255, 255, 0.08);
  --dark-text-primary: #f5f5f7;
  --dark-text-secondary: #86868b;
  --dark-text-muted: #535763;
  
  /* Text & Foreground */
  --text-primary: #1d1d1f;
  --text-secondary: #6e6e73;
  --text-tertiary: #86868b;
  --text-muted: #a1a1a6;
  --text-inverse: #ffffff;
  
  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.72);
  --glass-bg-hover: rgba(255, 255, 255, 0.88);
  --glass-border: rgba(0, 0, 0, 0.06);
  --glass-border-hover: rgba(0, 102, 204, 0.28);
  --glass-blur: blur(20px);
  --glass-blur-lg: blur(32px);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.04), 0 1px 2px 0 rgba(0, 0, 0, 0.02);
  --glass-shadow-hover: 0 16px 44px 0 rgba(0, 0, 0, 0.08), 0 2px 6px 0 rgba(0, 0, 0, 0.03);
  --glass-shadow-primary: 0 12px 36px 0 rgba(0, 102, 204, 0.18);
  
  /* Spacing */
  --space-2xs: 4px;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;
  --space-5xl: 128px;
  
  /* Border Radius */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-xl: 30px;
  --radius-2xl: 40px;
  --radius-full: 9999px;
  
  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Inter", "Segoe UI", Roboto, sans-serif;
  --font-mono: "SF Mono", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  
  /* Layout */
  --container-max: 1240px;
  --container-narrow: 880px;
  --nav-height: 68px;
  
  /* Transitions */
  --transition-fast: 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.45s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}