.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--topbar-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 7px 18px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.brand-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 12px;
  color: var(--text-primary);
}

.brand-title {
  font-weight: 600;
  font-size: 13px;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.brand-subtitle {
  font-size: 10px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.command-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  flex: 1;
  justify-content: flex-end;
}

.drawer-section {
  width: 100%;
  max-width: 100%;
  margin: 8px 0 0 0;
  padding: 0 16px;
  display: none;
  box-sizing: border-box;
}

.drawer-section.open {
  display: block;
}

.workbench-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: 8px;
  padding: 12px 16px;
}

.workbench-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 12px;
}

.workbench-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.workbench-sub {
  font-size: 11px;
  color: var(--text-muted);
  margin-left: 6px;
  font-weight: 400;
}

.subbar {
  width: 100%;
  max-width: 100%;
  margin: 6px 0 4px 0;
  padding: 0 16px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  box-sizing: border-box;
}

.table-container {
  width: 100%;
  max-width: 100%;
  margin: 0;
  padding: 2px 14px 6px 14px;
  overflow-x: hidden;
  box-sizing: border-box;
}

.periodic-grid {
  display: grid;
  grid-template-columns: repeat(18, minmax(0, 1fr));
  grid-auto-rows: clamp(46px, 6.4vh, 66px);
  gap: 3px;
  width: 100%;
}

.center-inspector {
  grid-column: 3 / 13;
  grid-row: 1 / 4;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 8px 12px;
  display: grid;
  grid-template-columns: auto 1.25fr 1.1fr;
  gap: 12px;
  align-items: center;
  overflow: hidden;
}

@media (max-width: 900px) {
  .table-container {
    overflow-x: auto;
  }
  .periodic-grid {
    min-width: 860px;
  }
}

@media (max-width: 768px) {
  .topbar {
    padding: 8px 12px;
  }
  .drawer-section, .subbar, .table-container {
    padding-left: 10px;
    padding-right: 10px;
  }
  .workbench-sub {
    display: none;
  }
}