:root[data-visual-theme="copper"] {
  --ds-ink: #2a2018;
  --ds-muted: #74675d;
  --ds-line: #e1d9d1;
  --ds-surface: #ffffff;
  --ds-soft: #f7f3ef;
  --ds-primary: #9a3412;
  --ds-primary-strong: #7c2d12;
  --ds-accent: #2563eb;
  --ds-sidebar-bg: #ffffff;
  --ds-sidebar-ink: #2a2018;
  --ds-sidebar-muted: rgba(42, 32, 24, .62);
  --ds-sidebar-hover: rgba(154, 52, 18, .09);
  --ds-sidebar-active: rgba(154, 52, 18, .16);
}

:root[data-visual-theme="copper"][data-theme="dark"] {
  --ds-ink: #fff7ed;
  --ds-muted: #d5c7b8;
  --ds-line: #574337;
  --ds-surface: #2b211b;
  --ds-soft: #18120f;
  --ds-primary: #fdba74;
  --ds-primary-strong: #fed7aa;
  --ds-accent: #93c5fd;
  --ds-sidebar-bg: #1f1712;
  --ds-sidebar-ink: #fff7ed;
  --ds-sidebar-muted: rgba(255, 247, 237, .62);
  --ds-sidebar-hover: rgba(251, 146, 60, .12);
  --ds-sidebar-active: rgba(251, 146, 60, .24);
}