/* Existing optional dark mode, adapted to Brand Style's charcoal surfaces. */
[data-theme="dark"] {
  --bg-primary: #20221f;
  --bg-secondary: #282c26;
  --bg-tertiary: #353b31;
  --bg-elevated: #282c26;
  --text-primary: #fafbf7;
  --text-secondary: #dcded5;
  --text-tertiary: #b9c0b0;
  --text-inverse: #20221f;
  --body: #dcded5;
  --muted: #b9c0b0;
  --border: #697260;
  --border-primary: #697260;
  --border-secondary: #aeb2a5;
  --color-navy: #ffe34d;
  --color-teal: #ffe34d;
  --color-teal-light: #fff9d8;
  --color-pink: #f3aac8;
  --pink-light: #f3aac8;
  --color-success: #a2dbb9;
  --color-success-bg: #243c2b;
  --color-error: #f3aac8;
  --color-error-bg: #422630;
  --color-warning: #ffe34d;
  --color-warning-bg: #3c3520;
  --color-info: #dcded5;
  --color-info-bg: #353b31;
}