/* Design tokens — 沿用 Artifact v5 的配色與語意色（工地黃 signal＋深藍黑 primary） */
:root{
  --bg:#ECEFF2; --surface:#FFFFFF; --surface2:#F4F6F8; --line:#D5DBE1; --line2:#E5E9ED;
  --ink:#15202B; --ink2:#44505D; --ink3:#737E8A;
  --primary:#15202B; --on-primary:#FFFFFF;
  --signal:#F2B705; --signal-ink:#2A2000;
  --ok:#0F7047; --ok-bg:#DAF2E4; --warn:#8A4F00; --warn-bg:#FFEDC4;
  --bad:#B3261E; --bad-bg:#FCE3E0; --info:#1A58A3; --info-bg:#DFEAF9;
  --mute:#55606C; --mute-bg:#E7EBEF;
  --focus:#1A58A3; --scrim:rgba(10,16,22,.46); --sheet:#FFFFFF;
  --shadow:0 1px 2px rgba(21,32,43,.05),0 6px 20px rgba(21,32,43,.07);
  color-scheme:light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0E141A; --surface:#172029; --surface2:#1D2731; --line:#2D3945; --line2:#25303B;
    --ink:#EDF1F5; --ink2:#B6C0CA; --ink3:#86929F;
    --primary:#EDF1F5; --on-primary:#15202B;
    --ok:#62D29B; --ok-bg:#153626; --warn:#F4C25B; --warn-bg:#3A2C0E;
    --bad:#FF8C82; --bad-bg:#3E1C19; --info:#8DB9F2; --info-bg:#162B44;
    --mute:#A9B3BD; --mute-bg:#25303B; --focus:#8DB9F2; --scrim:rgba(0,0,0,.62); --sheet:#1A232C;
    --shadow:0 1px 2px rgba(0,0,0,.3),0 6px 20px rgba(0,0,0,.25);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0E141A; --surface:#172029; --surface2:#1D2731; --line:#2D3945; --line2:#25303B;
  --ink:#EDF1F5; --ink2:#B6C0CA; --ink3:#86929F;
  --primary:#EDF1F5; --on-primary:#15202B;
  --ok:#62D29B; --ok-bg:#153626; --warn:#F4C25B; --warn-bg:#3A2C0E;
  --bad:#FF8C82; --bad-bg:#3E1C19; --info:#8DB9F2; --info-bg:#162B44;
  --mute:#A9B3BD; --mute-bg:#25303B; --focus:#8DB9F2; --scrim:rgba(0,0,0,.62); --sheet:#1A232C;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 6px 20px rgba(0,0,0,.25);
  color-scheme:dark;
}