/* SPK-BGB: Option B background – cool soft grey #F4F6F8 canvas, white cards, hairline #E3E8EE borders. Light mode only. */
html:not([data-theme="dark"]):not(#_){--blv-bg:#F4F6F8;--bg:#F4F6F8;--dx-bg:#F4F6F8;--io-bg:#F4F6F8;--i-bg:#F4F6F8;--mqbg:#F4F6F8;--blv-line:#E3E8EE;--i-line:#E3E8EE;--sbu-line:#E3E8EE;--dx-line:#E3E8EE;--spk-canvas:#F4F6F8}
html:not([data-theme="dark"]):not(#_) body,html:not([data-theme="dark"]):not(#_) body.blv-tools,html:not([data-theme="dark"]):not(#_) body.blv-kbon{background-color:#F4F6F8!important}
html:not([data-theme="dark"]):not(#_):not(#__) input#v4-rcv{background-color:#F4F6F8!important;border-color:#E3E8EE!important}