:root {
  --font-family: "IBM Plex Sans", sans-serif;
  --font-size-base: 16.2px;
  --line-height-base: 1.76;

  --max-w: 840px;
  --space-x: 1.5rem;
  --space-y: 1.5rem;
  --gap: 0.88rem;

  --radius-xl: 0.67rem;
  --radius-lg: 0.53rem;
  --radius-md: 0.43rem;
  --radius-sm: 0.27rem;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-lg: 0 14px 24px rgba(0,0,0,0.08);

  --overlay: rgba(64, 44, 32, 0.75);
  --anim-duration: 520ms;
  --anim-ease: cubic-bezier(0.16,1,0.3,1);
  --random-number: 2;

  --brand: #A0522D;
  --brand-contrast: #FFF8F0;
  --accent: #D2691E;
  --accent-contrast: #FFFFFF;

  --neutral-0: #FFFFFF;
  --neutral-100: #F8F4F0;
  --neutral-300: #D7CCC8;
  --neutral-600: #8D6E63;
  --neutral-800: #5D4037;
  --neutral-900: #3E2723;

  --bg-page: #FFFDFB;
  --fg-on-page: #3E2723;

  --bg-alt: #F9F5F1;
  --fg-on-alt: #5D4037;

  --surface-1: #FFFFFF;
  --surface-2: #F8F4F0;
  --fg-on-surface: #5D4037;
  --border-on-surface: #E8DED5;

  --surface-light: rgba(255, 253, 251, 0.92);
  --fg-on-surface-light: #5D4037;
  --border-on-surface-light: rgba(232, 222, 213, 0.7);

  --bg-primary: #A0522D;
  --fg-on-primary: #FFF8F0;
  --bg-primary-hover: #8B4513;
  --ring: rgba(160, 82, 45, 0.4);

  --bg-accent: #FFF3E0;
  --fg-on-accent: #5D4037;
  --bg-accent-hover: #B45309;

  --link: #A0522D;
  --link-hover: #8B4513;

  --gradient-hero: linear-gradient(135deg, rgba(255, 253, 251, 0.95) 0%, rgba(248, 244, 240, 0.9) 100%);
  --gradient-accent: linear-gradient(to right, #D2691E, #A0522D);

  --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;}