:root{
  --bg:#0b0c0f; --panel:#14161a; --text:#e9edf1; --muted:#a8b0ba;
  --accent:#6aa9ff; --border:#232831; --sticky:#0e1116;

  /* these get overridden by defaults.js at runtime */
  --val-col-w:110px;
  --rowhdr-w:100px;
  --heat-h:210; --heat-s:70%;
  --heat-low-l:16%; --heat-high-l:86%;
  --gene-sep:#3d4760;
}

*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--text);font:14px/1.45 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}

.app{display:grid;grid-template-columns:280px 1fr;min-height:100vh}
.sidebar{
  background:var(--panel);border-right:1px solid var(--border);padding:14px 12px;position:sticky;top:0;height:100vh;overflow:auto
}
.sb-section{margin-bottom:16px}
.sb-section h2{font-size:13px;margin:0 0 8px;color:#cbd3dd}
.sb-section h3{font-size:12px;margin:6px 0 6px;color:#d7dce5}
.field{margin:6px 0}
input[type="number"]{width:120px;padding:6px 8px;border:1px solid var(--border);border-radius:8px;background:#0b0e13;color:var(--text)}
.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px 8px}
.check-grid label{display:flex;gap:6px;align-items:center}
.btn{padding:8px 10px;border:1px solid var(--border);border-radius:8px;background:#0b1220;color:var(--text);cursor:pointer}
.btn.primary{background:#0b1630}
.btn:hover{border-color:#2b3240}
.sb-advanced summary{cursor:pointer;color:var(--muted)}
.sb-advanced{border:1px solid var(--border);border-radius:10px;padding:8px}

.content{display:flex;flex-direction:column;min-width:0}
.titlebar{
  display:flex;justify-content:space-between;align-items:center;gap:12px;
  padding:10px 16px;border-bottom:1px solid var(--border);background:var(--panel);position:sticky;top:0;z-index:5
}
.titlebar h1{margin:0;font-size:18px}
.meta{color:var(--muted);font-size:12px;margin-top:4px}
.badge{background:#0b1630;border:1px solid var(--border);padding:3px 8px;border-radius:999px}
.muted{color:var(--muted);font-size:12px;margin-left:8px}

.main{padding:12px 16px;display:flex;flex-direction:column;gap:10px}
.legend{padding:8px;border:1px solid var(--border);border-radius:8px;background:#0c0f14}
.legend-bar{height:16px;border-radius:6px;position:relative}
.legend-marks{display:flex;justify-content:space-between;margin-top:6px;font-size:12px;color:var(--muted)}
.legend-mark{padding:2px 6px;border-radius:6px}

.twocol-wrap{
  display:grid;
  grid-template-columns: repeat(var(--panel-count, 2), minmax(0, 1fr));
  gap:10px;
  max-width: 1200px;
}

/*.table-wrap{width:100%;overflow:auto;border:1px solid var(--border);border-radius:12px}*/


/* Table background = LOW end of heat (dark) */
table{
  border-collapse:separate;border-spacing:0;width:max-content;min-width:100%; /**/
  /*background:hsl(var(--heat-h) var(--heat-s) var(--heat-low-l));*/
  background:rgb(0,0,0);
  table-layout: fixed;
}
thead th, tbody th{position:sticky;z-index:2;top:0;background:var(--sticky);border-bottom:1px solid var(--border)}
tbody th{left:0;z-index:1;background:var(--sticky);border-right:1px solid var(--border)}
thead th{white-space:nowrap}
thead th:first-child{border-top-left-radius:12px}
thead th:last-child{border-top-right-radius:12px}
tbody tr:last-child td:first-child{border-bottom-left-radius:12px}
tbody tr:last-child td:last-child{border-bottom-right-radius:12px}

/* Hard cap widths for Gene/Compound with ellipsis */
th.rowhdr, th.rowhdr2, tbody th{
  width:var(--rowhdr-w) !important;
  max-width:var(--rowhdr-w);
  min-width:var(--rowhdr-w);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
th.rowhdr2{left:var(--rowhdr-w)}

thead th, tbody th, td{padding:8px 10px;border-right:1px solid var(--border);border-bottom:1px solid var(--border)}
td{
  width:var(--val-col-w);
  min-width:var(--val-col-w);
  max-width:var(--val-col-w);
  text-align:right;
  font-variant-numeric:tabular-nums;
}

td.is-zero{ /* zero-cells: nearly invisible */
  background: transparent !important;
  color: rgba(233,237,241,.18) !important;
}

/* Strong separator between gene groups (contrasty color) */
tr.gene-sep > td, tr.gene-sep > th { border-top:2px solid var(--gene-sep); }

tbody tr:hover td, tbody tr:hover th{outline:1px dashed rgba(255,255,255,.08);outline-offset:-3px}
.footer{padding:10px 16px;color:var(--muted);border-top:1px solid var(--border)}

/* Make widths precise: content + padding + border = declared width */
thead th, tbody th, td {
  box-sizing: border-box;
}

/* Give all VALUE headers the exact same width as value TDs */
thead th:not(.rowhdr):not(.rowhdr2) {
  width: var(--val-col-w);
  min-width: var(--val-col-w);
  max-width: var(--val-col-w);
}

/* stain-info header row */
thead tr.info-row th{
  background:#0f1217;
  font-weight:400;
  color:#d7dce5;
  white-space:normal;
  vertical-align:top;
  font-size:12px;
}
thead tr.info-row a{color:var(--accent);text-decoration:none}
thead tr.info-row code{color:#cbd3dd}

/* non-interactive hover hint tooltip */
.tooltip{
  position:fixed;pointer-events:none;z-index:10;max-width:240px;
  background:#0f1217;border:1px solid var(--border);border-radius:8px;padding:6px 8px;
  box-shadow:0 6px 20px rgba(0,0,0,.35);color:var(--text);font-size:12px;line-height:1.35
}


.stain-img{margin-top:6px;border-radius:6px;display:block;border:1px solid var(--border)}

/* interactive popovers (cells & gene/compound) */
.popcard{position:fixed;z-index:11;min-width:320px;max-width:520px;
  background:#0f1217;border:1px solid var(--border);border-radius:10px;padding:10px;color:var(--text);
  box-shadow:0 6px 24px rgba(0,0,0,.45);font-size:12px;line-height:1.4}
.popcard a{color:var(--accent);text-decoration:none}
.popcard .toolbar{display:flex;gap:6px;justify-content:flex-start;margin-bottom:6px}
.popcard .btn-sm{padding:4px 8px;border:1px solid var(--border);border-radius:6px;background:#0b1220;color:var(--text);cursor:pointer}
.poplink{cursor:pointer} /* no underline now */

/* caret button placed in first stain header */
.caret-btn{
  display:inline-flex;align-items:center;gap:6px;cursor:pointer;
  padding:4px 8px;border:1px solid var(--border);border-radius:8px;background:#0b1220;color:var(--text);font-size:12px;margin-left:8px
}
.caret-btn:hover{border-color:#2b3240}
.caret{display:inline-block;transition:transform .15s ease}
.caret.open{transform:rotate(90deg)}

/* mini subgroup cells inside a value cell */
.mini-wrap{
  display:flex;
  gap:3px;
  padding:0 4px;          /* margins so minis don't fill entire cell */
  justify-content:stretch;
  align-items:stretch;
}
.mini{
  flex:1 1 0;
  min-height:18px;
  border-radius:4px;
  display:flex;
  align-items:center;
  justify-content:flex-end;
  padding:0 4px;
  font-size:12px;
}

.ds-link { cursor: pointer; }
.ds-active { color: var(--accent); border: 1px solid var(--accent); border-radius: 6px; padding: 2px 6px; }