/* Day / night toggle (header) */
.m3d-theme-toggle{position:relative;display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;flex-shrink:0;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--ink);cursor:pointer;padding:0;transition:background .2s ease,border-color .2s ease,transform .2s ease;}
.m3d-theme-toggle:hover{background:rgba(127,127,127,.12);border-color:var(--ink-faint);}
.m3d-theme-toggle:active{transform:scale(.94);}
.m3d-theme-toggle svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.m3d-theme-toggle .i-sun{display:none;}
:root[data-theme="dark"] .m3d-theme-toggle .i-sun{display:block;}
:root[data-theme="dark"] .m3d-theme-toggle .i-moon{display:none;}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]) .m3d-theme-toggle .i-sun{display:block;}
  :root:not([data-theme="light"]) .m3d-theme-toggle .i-moon{display:none;}
}
.m3d-sr{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
.m3d-theme-toggle--bar{display:none;}
@media (max-width:940px){
  .m3d-theme-toggle--bar{display:inline-flex;margin-left:auto;margin-right:8px;}
}

/* v3.81: the day/night switch only on phones and tablets – desktop is always light */
@media (min-width:1024px){.m3d-theme-toggle{display:none!important}}