.tools-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 20px;
  align-items: start;
}
.tools-list-panel {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.tools-list-controls {
  display: flex;
  gap: 8px;
  align-items: center;
}

.tools-list {
  border: 1px solid #ddd;
  border-radius: 4px;
  overflow-y: auto;
  max-height: 80vh;
}

.tools-viewer {
  border: 1px solid #ddd;
  border-radius: 4px;
  padding: 12px;
  min-height: 200px;
  overflow: hidden;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
}
.tools-viewer .xlsx-table-wrapper {
  overflow: auto;
  flex: 1;
}
.tools-download {
  margin-bottom: 12px;
}

/* Responsive smartphone */
/* ===================== */
@media (max-width: 768px) {
  .tools-layout {
    grid-template-columns: 1fr;
  }
  .tools-list {
    max-height: none;
  }
  .tools-viewer {
    max-height: none;
    overflow: hidden;
  }
  .tools-viewer .xlsx-table-wrapper {
    overflow: auto;
  }
}