MediaWiki:Common.css

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/* === Holdfast: banner top-left + dark left column under sidebar/header === */
:root{
  --hf-banner-h: 150px;   /* height of the banner strip */
  --hf-leftcol-w: 40vw;   /* width of the left column (≈ 2/5 of screen) */
  --hf-parchment: #E1DCCE;
  --hf-left-top: #2F2D2B;
  --hf-left-bot: #1E1E1D;
}

/* Paint the PAGE background with 3 layers:
   1) Banner image (only across the top-left strip)
   2) Dark vertical gradient column (full height under sidebar)
   3) Parchment for everything else
*/
html, body{
  background:
    url("/Special:FilePath/BannerImage.png") left top no-repeat,
    linear-gradient(to bottom, var(--hf-left-top) 0%, var(--hf-left-bot) 100%) left top repeat-y,
    var(--hf-parchment);
  background-size:
    var(--hf-leftcol-w) var(--hf-banner-h),  /* banner area */
    var(--hf-leftcol-w) 100%,                /* left column */
    auto;
  background-attachment:
    scroll, scroll, scroll;
}

/* Make header/containers transparent so they overlay the page background */
#mw-head,
.vector-header-container,
#mw-page-base, #mw-head-base,
#content, .mw-body, .vector-body .mw-body{
  background: transparent !important;
}

/* Ensure the header has enough height to show the banner strip */
#mw-head, .vector-header-container{ min-height: var(--hf-banner-h); }

/* Sidebar overlays the left column — keep it transparent and readable */
#mw-panel, #column-one, .mw-sidebar{
  background: transparent !important;
  color: #EEEDEB !important;
}
#mw-panel a, #column-one a, .mw-sidebar a{
  color: #EEEDEB !important; text-decoration: none;
}
#mw-panel a:hover, #column-one a:hover, .mw-sidebar a:hover{
  color: #5A65EA !important; text-decoration: underline;
}