:root {
  /* Common Variables */
  --font-primary: 'Syne', sans-serif;
  --font-secondary: 'Inter', sans-serif;
  --transition-speed: 0.4s;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out-circ: cubic-bezier(0.785, 0.135, 0.15, 0.86);
  
  /* Layout & Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 8rem;
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 30px;
  --radius-xl: 40px;

  /* Z-Index */
  --z-base: 1;
  --z-elevated: 10;
  --z-overlay: 100;
  --z-header: 1000;
  
  /* Light Mode (Refined) */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --text-primary: #02050c;
  --text-secondary: #475569;
  --accent-blue: #38bdf8;
  --accent-purple: #a777e3;
  
  /* Glassmorphism Light */
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-bg-strong: rgba(255, 255, 255, 0.9);
  --glass-border: rgba(0, 0, 0, 0.05);
  --border-glow: rgba(56, 189, 248, 0.2);
  --glass-blur: 24px;
  --card-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.08);
  --shadow-glow: 0 0 20px rgba(56, 189, 248, 0.15);
  
  /* Gradients */
  --gradient-main: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.4) 0%, rgba(255,255,255,0.1) 100%);
  --radial-gradient-1: rgba(56, 189, 248, 0.05);
  --radial-gradient-2: rgba(167, 119, 227, 0.05);
  --hero-radial-1: rgba(56, 189, 248, 0.15);
  --hero-radial-2: rgba(167, 119, 227, 0.15);
}

[data-theme="dark"] {
  /* Dark Mode (Strict) - Customer Colors */
  --bg-primary: #01002a;
  --bg-secondary: #02050c;
  --text-primary: #ffffff;
  --text-secondary: #94a3b8;
  --accent-blue: #38bdf8;
  --accent-purple: #a777e3;
  
  /* Glassmorphism Dark */
  --glass-bg: rgba(2, 5, 12, 0.5); 
  --glass-bg-strong: rgba(1, 0, 42, 0.85);
  --glass-border: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(56, 189, 248, 0.3);
  --card-shadow: 0 20px 50px -10px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(56, 189, 248, 0.2);
  
  /* Gradients */
  --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.01) 100%);
  --radial-gradient-1: rgba(56, 189, 248, 0.1);
  --radial-gradient-2: rgba(167, 119, 227, 0.1);
  --hero-radial-1: rgba(56, 189, 248, 0.25);
  --hero-radial-2: rgba(167, 119, 227, 0.25);
}