/* Diachronica research surfaces share the word explorer's palette. */
:root {
  color-scheme: light;
  --paper: #f6efe0; --ink: #2a2218; --muted: #6b5d49;
  --line: #e2d6bd; --control-line: #938267; --card: #fffdf7; --accent: #c0341d;
  --surface-2: #f3ead7; --accent-soft: #e8c9bf;
  --shadow: 0 1px 2px rgba(42,34,24,.06), 0 8px 24px rgba(42,34,24,.08);
  --radius: 16px;
  --accent-dark: #a52b18; --focus: #005fcc; --button-ink: #fff;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
}
body.dark {
  color-scheme: dark;
  --paper: #1a1712; --ink: #ece3d2; --muted: #b6a98f;
  --line: #3a3228; --control-line: #82745d; --card: #262019; --accent: #e2673f;
  --surface-2: #2f2820; --accent-soft: #4a2d23;
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.35);
  --accent-dark: #f18a66; --focus: #80baff; --button-ink: #1a1712;
}
body.hc {
  color-scheme: dark;
  --paper: #000; --ink: #fff; --muted: #fff;
  --line: #fff; --control-line: #fff; --card: #000; --accent: #ffd400;
  --surface-2: #0d0d0d; --accent-soft: #2a2300; --shadow: none;
  --accent-dark: #ffd400; --focus: #57e0d2; --button-ink: #000;
}