/* Signal Activate — THEME DIAL.
   This one file controls the shading of the page background AND the header card
   across every Activate page (Upload, Solutions, Hub, About). It is the single
   source of truth for those colours.

   To make everything LIGHTER: nudge the hex values up toward #FFFFFF.
   To make everything DARKER:  nudge the hex values down.
   The page background and the header card read from the SAME variables, so they
   always stay identical — change here, and all four pages update together. */
:root{
  --sig-bg-top:#FFFFFF;   /* top of the vertical gradient (lightest) */
  --sig-bg-mid:#FFFFFF;   /* middle */
  --sig-bg-bot:#FFFFFF;   /* bottom (deepest) */
  --sig-bg-base:#FFFFFF;  /* solid colour beneath the gradient */
  --sig-glow-a:rgba(125,170,235,0);  /* top-right blue glow */
  --sig-glow-b:rgba(150,180,225,0);  /* top-left blue glow */
  --sig-glow-c:rgba(125,170,235,0);  /* lower blue glow */
}