/* ================================================================
   StudentOS — patches57.css
   Definitive Whiteboard Mind-Map Overhaul — supplementary styles.

   The visual node styles (colours, fonts, borders) are produced
   entirely by the SVG renderer in patches57.js and need no
   additional CSS.  This file holds only the guard rule that ensures
   no other patch can accidentally re-introduce a bright coloured
   left-border on formula worksheet blocks (originally in
   patches30.css, already overridden by patches54.css — duplicated
   here for belt-and-braces certainty).
   ================================================================ */

/* ================================================================
   FORMULA BLOCK — UNIFORM BORDER COLOUR (belt-and-braces)
   patches30.css sets `border-left: 3px solid color-mix(…accent…)`
   on formula blocks.  patches54.css already overrides this, but we
   reinforce it here to ensure the formula block always looks the
   same as every other .p19-ws-block.
   ================================================================ */
.p19-ws-block.formula-block {
    border-left-width:  1.5px !important;
    border-left-color:  var(--glass-border) !important;
    border-left-style:  solid !important;
}