/* CSS Variables - 線上博弈.xyz */
:root {
  /* Primary Color Palette - from specs */
  --color-primary: #6439FF;
  --color-secondary: #4F75FF;
  --color-accent: #00CCDD;
  --color-highlight: #7CF5FF;

  /* RGB versions for rgba() */
  --color-primary-rgb: 100, 57, 255;
  --color-secondary-rgb: 79, 117, 255;
  --color-accent-rgb: 0, 204, 221;
  --color-highlight-rgb: 124, 245, 255;

  /* Background colors */
  --color-bg: #0a0a1a;
  --color-bg-light: #12122a;
  --color-bg-card: #1a1a3a;
  --color-bg-hover: #252550;

  /* Text colors */
  --color-text: #ffffff;
  --color-text-muted: #a0a0c0;
  --color-text-dim: #8888a8;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  --gradient-accent: linear-gradient(135deg, var(--color-accent) 0%, var(--color-highlight) 100%);
  --gradient-glow: radial-gradient(ellipse at center, rgba(var(--color-primary-rgb), 0.3) 0%, transparent 70%);

  /* Typography - System fonts only */
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  --font-mono: "SF Mono", "Monaco", "Consolas", monospace;

  /* Responsive Typography */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.4vw, 1rem);
  --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.8vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
  --text-3xl: clamp(2rem, 1.7rem + 1.5vw, 2.5rem);
  --text-4xl: clamp(2.5rem, 2rem + 2vw, 3.5rem);

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Layout */
  --container-max: 1200px;
  --container-padding: clamp(1rem, 5vw, 2rem);

  /* Border Radius */
  --radius-sm: 4px;
  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 20px rgba(var(--color-primary-rgb), 0.4);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition: 250ms ease;
  --transition-slow: 400ms ease;

  /* Z-index layers */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-toast: 600;
}