:root {
  --font-family: "Roboto", sans-serif;
  --font-size-base: 17px;
  --line-height-base: 1.62;

  --max-w: 1020px;
  --space-x: 1.41rem;
  --space-y: 1.5rem;
  --gap: 0.85rem;

  --radius-xl: 0.69rem;
  --radius-lg: 0.57rem;
  --radius-md: 0.36rem;
  --radius-sm: 0.19rem;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 2px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 14px 28px rgba(0,0,0,0.12);

  --overlay: rgba(0, 0, 0, 0.75);
  --anim-duration: 480ms;
  --anim-ease: cubic-bezier(0.2,0.8,0.2,1);
  --random-number: 2;

  --brand: #0a0a0f;
  --brand-contrast: #ffffff;
  --accent: #00f0ff;
  --accent-contrast: #001a1c;

  --neutral-0: #ffffff;
  --neutral-100: #f5f5f7;
  --neutral-300: #d1d1d9;
  --neutral-600: #6b6b7a;
  --neutral-800: #2a2a33;
  --neutral-900: #0a0a0f;

  --bg-page: #0a0a0f;
  --fg-on-page: #f5f5f7;

  --bg-alt: #1a1a23;
  --fg-on-alt: #d1d1d9;

  --surface-1: #1a1a23;
  --surface-2: #2a2a33;
  --fg-on-surface: #f5f5f7;
  --border-on-surface: rgba(255, 255, 255, 0.08);

  --surface-light: rgba(255, 255, 255, 0.03);
  --fg-on-surface-light: #d1d1d9;
  --border-on-surface-light: rgba(255, 255, 255, 0.05);

  --bg-primary: #00f0ff;
  --fg-on-primary: #001a1c;
  --bg-primary-hover: #33f3ff;
  --ring: rgba(0, 240, 255, 0.4);

  --bg-accent: rgba(0, 240, 255, 0.1);
  --fg-on-accent: #00f0ff;
  --bg-accent-hover: #33f3ff;

  --link: #00f0ff;
  --link-hover: #33f3ff;

  --gradient-hero: linear-gradient(135deg, #0a0a0f 0%, #1a1a23 50%, #2a2a33 100%);
  --gradient-accent: linear-gradient(90deg, #00f0ff 0%, #9d4edd 100%);

  --btn-ghost-bg: transparent;
  --btn-ghost-bg-hover: rgba(255,255,255,0.06);
  --chip-bg: rgba(255,255,255,0.08);
  --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;}