/* molstar-blog.css — viewer container + residue-context card.
   Kept out of the site's global styles/custom.css; loaded only on pages that
   embed a viewer. */

/* Viewer container --------------------------------------------------------- */
.msb-embed { margin: 1.5rem 0; }

.msb-viewer {
  position: relative;            /* Mol* fills a positioned parent with a height */
  width: 100%;
  height: 480px;
  overflow: hidden;
  background: transparent;       /* the canvas paints the page colour; no border */
}

.msb-viewer-caption {
  margin: 6px 2px 0;
  font-size: 12.5px;
  color: #6b7280;
}

/* Residue context card ----------------------------------------------------- */
.msb-residue-card {
  position: fixed;
  z-index: 9999;
  min-width: 210px;
  max-width: 260px;
  font: 12.5px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  color: #1f2937;
  background: rgba(255, 255, 255, 0.97);
  border: 1px solid #d1d5db;
  border-radius: 8px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.14);
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
  user-select: none;
}

.msb-rc-title {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-bottom: 1px solid #eef0f2;
}
.msb-rc-id {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-weight: 600;
  color: #059669;
}
.msb-rc-chain { color: #6b7280; font-size: 11.5px; }
.msb-rc-close {
  margin-left: auto;
  border: 0;
  background: transparent;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  color: #9ca3af;
  padding: 0 2px;
}
.msb-rc-close:hover { color: #374151; }

.msb-rc-body { padding: 8px 10px 10px; }

.msb-rc-alts-label {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #9ca3af;
  margin-bottom: 4px;
}
.msb-rc-single { font-size: 12px; color: #6b7280; }

.msb-rc-alt { display: flex; align-items: center; gap: 7px; margin: 3px 0; }
.msb-rc-altid {
  font-family: ui-monospace, Menlo, monospace;
  font-weight: 600;
  width: 16px;
  text-align: center;
  color: #2563eb;
}
.msb-rc-bar {
  flex: 1;
  height: 7px;
  background: #eef0f2;
  border-radius: 4px;
  overflow: hidden;
}
.msb-rc-bar-fill { display: block; height: 100%; background: #2563eb; }
.msb-rc-occ {
  font-family: ui-monospace, Menlo, monospace;
  color: #4b5563;
  width: 30px;
  text-align: right;
}

.msb-rc-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2px 10px;
  margin: 8px 0 0;
  padding-top: 8px;
  border-top: 1px solid #eef0f2;
}
.msb-rc-grid dt { color: #9ca3af; }
.msb-rc-grid dd {
  margin: 0;
  font-family: ui-monospace, Menlo, monospace;
  color: #374151;
  text-align: right;
}

/* mmCIF explorer (side-by-side file <-> structure) ------------------------- */
.msb-split { display: flex; gap: 14px; align-items: stretch; }
.msb-split .msb-cif { flex: 0 0 44%; max-width: 44%; }
.msb-split .msb-viewer-wrap { flex: 1 1 auto; min-width: 0; }
@media (max-width: 760px) {
  .msb-split { flex-direction: column; }
  .msb-split .msb-cif { flex-basis: 260px; max-width: 100%; }
}

.msb-cif {
  height: 480px;
  overflow: auto;
  border: 1px solid #e5e7eb;
  border-radius: 6px;
  background: #fff;
  font: 11.5px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace;
  color: #374151;
}
.msb-cif-head,
.msb-cif-chain {
  position: sticky;
  z-index: 1;
  white-space: pre;
  background: #f0f3f6;
}
.msb-cif-head { top: 0; color: #9ca3af; padding: 4px 8px; border-bottom: 1px solid #e5e7eb; }
.msb-cif-chain { top: 25px; padding: 4px 8px; font-weight: 600; color: #111827; }
.msb-cif-res { padding: 2px 8px 2px 14px; color: #2563eb; }
.msb-cif-atom { padding: 0 8px 0 22px; white-space: pre; }
.msb-cif-chain:hover, .msb-cif-res:hover, .msb-cif-atom:hover { background: #eaf3ff; }

.msb-3dlabel {
  position: fixed;
  z-index: 9998;
  transform: translate(-50%, -135%);
  background: rgba(37, 99, 235, 0.95);
  color: #fff;
  font: 600 11px/1.2 ui-monospace, Menlo, monospace;
  padding: 3px 7px;
  border-radius: 5px;
  pointer-events: none;
  white-space: nowrap;
  display: none;
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.25);
}