html, body {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  background-color: var(--bg-primary);
  overflow-x: hidden;
}

:root {
  color-scheme: dark;
  
  /* Gray Scale - Premium Carbon */
  --bg-primary: #000000;
  --bg-surface: #0c0c0e;
  --bg-surface-elevated: #161618;
  --bg-surface-hover: #1c1c1f;
  
  /* Borders */
  --border-subtle: rgba(255, 255, 255, 0.04);
  --border-default: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.12);
  
  /* Accents */
  --accent-primary: #00e5ff;
  --accent-secondary: #7c3aed;
  --accent-success: #10b981;
  --accent-danger: #f43f5e;
  --accent-warning: #ffb347; 
  
  /* Text */
  --text-primary: #ffffff;
  --text-secondary: #d4d4d8;
  --text-muted: #a1a1aa;
  --text-subtle: #52525b;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.5);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.3), 0 2px 4px -1px rgba(0,0,0,0.2);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.4), 0 4px 6px -2px rgba(0,0,0,0.2);
  --shadow-glow: 0 0 20px rgba(0, 229, 255, 0.1);
  --shadow-glow-soft: 0 0 15px rgba(0, 229, 255, 0.05);
  
  /* Radius */
  --radius-sm: 8px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  
  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  
  /* Transitions */
  --transition-fast: 180ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 280ms cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  color: var(--text-secondary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}