:root {
  --font-family: "Roboto", sans-serif;
  --font-size-base: 13.9px;
  --line-height-base: 1.36;

  --max-w: 1000px;
  --space-x: 0.73rem;
  --space-y: 1.02rem;
  --gap: 0.67rem;

  --radius-xl: 0.87rem;
  --radius-lg: 0.55rem;
  --radius-md: 0.35rem;
  --radius-sm: 0.18rem;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
  --shadow-md: 0 3px 14px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 18px rgba(0,0,0,0.08);

  --overlay: rgba(0, 0, 0, 0.7);
  --anim-duration: 160ms;
  --anim-ease: cubic-bezier(0.16,1,0.3,1);
  --random-number: 2;

  --brand: #0ea5e9;
  --brand-contrast: #ffffff;
  --accent: #00f7ff;
  --accent-contrast: #001a1c;

  --neutral-0: #ffffff;
  --neutral-100: #f1f5f9;
  --neutral-300: #cbd5e1;
  --neutral-600: #475569;
  --neutral-800: #1e293b;
  --neutral-900: #0f172a;

  --bg-page: #0a0e17;
  --fg-on-page: #e2e8f0;

  --bg-alt: #111827;
  --fg-on-alt: #cbd5e1;

  --surface-1: #1a2235;
  --surface-2: #222d44;
  --fg-on-surface: #d1d9e8;
  --border-on-surface: rgba(59, 130, 246, 0.2);

  --surface-light: rgba(30, 41, 59, 0.7);
  --fg-on-surface-light: #cbd5e1;
  --border-on-surface-light: rgba(100, 116, 139, 0.3);

  --bg-primary: #2563eb;
  --fg-on-primary: #ffffff;
  --bg-primary-hover: #3b82f6;
  --ring: #3b82f6;

  --bg-accent: rgba(0, 247, 255, 0.12);
  --fg-on-accent: #ffffff;
  --bg-accent-hover: #33f9ff;

  --link: #60a5fa;
  --link-hover: #93c5fd;

  --gradient-hero: linear-gradient(135deg, #0a0e17 0%, #1a2235 50%, #0f172a 100%);
  --gradient-accent: linear-gradient(90deg, #00f7ff 0%, #3b82f6 100%);

  --btn-ghost-bg: transparent;
  --btn-ghost-bg-hover: rgba(255,255,255,0.06);
  --chip-bg: rgba(255,255,255,0.68);
  --input-placeholder: rgba(255,255,255,0.55);
}
body{margin:0;padding:0;font-family:var(--font-family);box-sizing: border-box;}
*{box-sizing:border-box;}