:root {
  --font-family: "IBM Plex Sans", sans-serif;
  --font-size-base: 14.7px;
  --line-height-base: 1.36;

  --max-w: 1100px;
  --space-x: 0.57rem;
  --space-y: 1.08rem;
  --gap: 0.51rem;

  --radius-xl: 0.71rem;
  --radius-lg: 0.49rem;
  --radius-md: 0.32rem;
  --radius-sm: 0.21rem;

  --shadow-sm: 0 0px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 14px rgba(0,0,0,0.05);
  --shadow-lg: 0 12px 16px rgba(0,0,0,0.07);

  --overlay: rgba(0, 0, 0, 0.5);
  --anim-duration: 110ms;
  --anim-ease: cubic-bezier(0.16,1,0.3,1);
  --random-number: 2;

  --brand: #00bcd4;
  --brand-contrast: #ffffff;
  --accent: #00bcd4;
  --accent-contrast: #ffffff;

  --neutral-0: #ffffff;
  --neutral-100: #f5f7fa;
  --neutral-300: #d1d9e6;
  --neutral-600: #6c7a95;
  --neutral-800: #2c3e50;
  --neutral-900: #1a2530;

  --bg-page: #1a2530;
  --fg-on-page: #f5f7fa;

  --bg-alt: #2c3e50;
  --fg-on-alt: #d1d9e6;

  --surface-1: #2c3e50;
  --surface-2: #34495e;
  --fg-on-surface: #f5f7fa;
  --border-on-surface: #3d566e;

  --surface-light: #f5f7fa;
  --fg-on-surface-light: #2c3e50;
  --border-on-surface-light: #d1d9e6;

  --bg-primary: #00bcd4;
  --fg-on-primary: #ffffff;
  --bg-primary-hover: #00acc1;
  --ring: rgba(0, 188, 212, 0.4);

  --bg-accent: rgba(0, 188, 212, 0.1);
  --fg-on-accent: #00bcd4;
  --bg-accent-hover: rgba(0, 188, 212, 0.2);

  --link: #00bcd4;
  --link-hover: #00acc1;

  --gradient-hero: linear-gradient(135deg, #1a2530 0%, #2c3e50 100%);
  --gradient-accent: linear-gradient(90deg, #00bcd4 0%, #00acc1 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;}