:root {
  /* ---------- Print geometry ---------- */
  --page-width: 8.5in;
  --page-height: 11in;

  /*
    Mirrored margins for Wire-O / comb binding.
    The inside edge receives additional room for punched holes and page turns.
  */
  --margin-top: 0.55in;
  --margin-bottom: 0.60in;
  --margin-outer: 0.50in;
  --margin-inner: 0.80in;

  --header-height: 0.28in;
  --footer-height: 0.28in;

  /*
    A slightly tighter grid gap recovers usable vertical space while retaining
    clear separation between header, title/content, and footer.
  */
  --content-gap: 0.14in;

  /* Minimum protected distance between flowing content and the footer. */
  --footer-clearance: 0.12in;

  /* ---------- Color system ---------- */
  --paper: #ffffff;
  --ink: #18202a;
  --ink-soft: #4f514d;
  --muted: #77766f;

  --prepare: #315b2c;
  --prepare-dark: #274922;
  --prepare-soft: #e8ede3;

  --discover: #114f77;
  --discover-dark: #0d3f60;
  --discover-soft: #e6edf2;

  --discern: #9a632f;
  --discern-dark: #774a21;
  --discern-soft: #f1e7dc;

  --respond: #343332;
  --respond-dark: #242322;
  --respond-soft: #eceae7;

  --olive: #69745b;
  --olive-dark: #4d583f;
  --bronze: #b58a46;
  --bronze-dark: #8c6832;
  --slate: #819baa;
  --slate-dark: #526b7a;

  --rule: #9ea096;
  --rule-light: #d5d3ca;
  --rule-faint: #e8e5de;

  --panel: #f4f1e9;
  --panel-cool: #e9eef1;
  --panel-warm: #f3eadf;
  --panel-olive: #eef0e7;

  /* ---------- Typography ---------- */
  --font-serif: "Alegreya", Georgia, "Times New Roman", serif;
  --font-sans: "Alegreya Sans", Arial, Helvetica, sans-serif;

  --fs-xxs: 8pt;
  --fs-xs: 9pt;
  --fs-sm: 10pt;
  --fs-base: 11pt;
  --fs-md: 12pt;
  --fs-lg: 15pt;
  --fs-xl: 22pt;
  --fs-xxl: 38pt;
  --fs-display: 48pt;

  --leading-tight: 1.05;
  --leading-snug: 1.25;
  --leading-normal: 1.45;
  --leading-writing: 0.32in;

  --tracking-tight: 0.02em;
  --tracking-wide: 0.08em;
  --tracking-wider: 0.14em;

  /* ---------- Spacing ---------- */
  --space-1: 0.06in;
  --space-2: 0.10in;
  --space-3: 0.14in;
  --space-4: 0.18in;
  --space-5: 0.24in;
  --space-6: 0.32in;
  --space-7: 0.42in;

  /* ---------- Component geometry ---------- */
  --radius-sm: 3px;
  --radius-md: 8px;
  --radius-lg: 14px;

  --ribbon-height: 0.66in;
  --step-size: 0.31in;
  --sidebar-width: 1.34in;

  --shadow-screen: 0 10px 28px rgba(26, 28, 24, 0.13);
}