/* Color tokens: light default, dark via prefers-color-scheme, and an
   explicit override via [data-theme] for the in-page toggle button. */

:root {
  color-scheme: light;
  --surface-1:      #fcfcfb;
  --page-plane:     #f9f9f7;
  --text-primary:   #0b0b0b;
  --text-secondary: #52514e;
  --muted:          #898781;
  --gridline:       #e1e0d9;
  --border:         rgba(11,11,11,0.10);
  --border-strong:  #c3c2b7;
  --edge-ink:       #898781;
  --node-selected:  #eb6834;
  --node-new:       #eda100; /* "first offered this term" ring */
  --link:           #2a78d6;
}

@media (prefers-color-scheme: dark) {
  :root:where(:not([data-theme="light"])) {
    color-scheme: dark;
    --surface-1:      #1a1a19;
    --page-plane:     #0d0d0d;
    --text-primary:   #ffffff;
    --text-secondary: #c3c2b7;
    --muted:          #898781;
    --gridline:       #2c2c2a;
    --border:         rgba(255,255,255,0.10);
    --border-strong:  #383835;
    --edge-ink:       #898781;
    --node-selected:  #d95926;
    --node-new:       #c98500;
    --link:           #3987e5;
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --surface-1:      #1a1a19;
  --page-plane:     #0d0d0d;
  --text-primary:   #ffffff;
  --text-secondary: #c3c2b7;
  --muted:          #898781;
  --gridline:       #2c2c2a;
  --border:         rgba(255,255,255,0.10);
  --border-strong:  #383835;
  --edge-ink:       #898781;
  --node-selected:  #d95926;
  --node-new:       #c98500;
  --link:           #3987e5;
}