:root {
  --font-family: "Open Sans", sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.6;

  --max-w: 1200px;
  --space-x: 2rem;
  --space-y: 1.25rem;
  --gap: 1rem;

  --radius-xl: 24px;
  --radius-lg: 16px;
  --radius-md: 8px;
  --radius-sm: 4px;

  --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 8px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 16px rgba(0,0,0,0.1);

  --overlay: rgba(0, 0, 0, 0.5);
  --anim-duration: 0.3s;
  --anim-ease: ease-in-out;
  --random-number: 2;

  --brand: #8B4513;
  --brand-contrast: #FFFFFF;
  --accent: #D2691E;
  --accent-contrast: #FFFFFF;

  --neutral-0: #FFFFFF;
  --neutral-100: #F5F5F5;
  --neutral-300: #E0E0E0;
  --neutral-600: #757575;
  --neutral-800: #424242;
  --neutral-900: #212121;

  --bg-page: #FFFEF9;
  --fg-on-page: #3E2723;

  --bg-alt: #F9F5F0;
  --fg-on-alt: #4E342E;

  --surface-1: #FFFFFF;
  --surface-2: #FAF3E9;
  --fg-on-surface: #3E2723;
  --border-on-surface: #E8D9C5;

  --surface-light: #FFFDF6;
  --fg-on-surface-light: #5D4037;
  --border-on-surface-light: #F0E6D6;

  --bg-primary: #8B4513;
  --fg-on-primary: #FFFFFF;
  --bg-primary-hover: #A0522D;
  --ring: rgba(139, 69, 19, 0.4);

  --bg-accent: #FFF8DC;
  --fg-on-accent: #5D4037;
  --bg-accent-hover: #A0522D;

  --link: #8B4513;
  --link-hover: #D2691E;

  --gradient-hero: linear-gradient(135deg, #8B4513 0%, #D2691E 100%);
  --gradient-accent: linear-gradient(90deg, #FFF8DC 0%, #FAF3E9 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;}