frontend/src/components/MriViewer/ChannelManager.module.css

.manager {
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.title {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #555;
  margin-bottom: 4px;
}

.empty {
  padding: 10px;
  font-size: 12px;
  color: #555;
}

.row {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: #1e1e1e;
  border-radius: 5px;
  padding: 7px 8px;
  border: 1px solid #333;
}

.row.disabled {
  opacity: 0.45;
}

.toggle {
  display: flex;
  align-items: center;
  gap: 7px;
  cursor: pointer;
}

.toggle input[type='checkbox'] {
  accent-color: #4a9eff;
  width: 14px;
  height: 14px;
}

.channelLabel {
  font-size: 12px;
  color: #ccc;
}

.controls {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 21px;
}

.colormapSelect {
  background: #161616;
  color: #bbb;
  border: 1px solid #3a3a3a;
  border-radius: 3px;
  padding: 3px 6px;
  font-size: 11px;
  width: 100%;
}

.opacityWrap {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: #888;
}

.opacityLabel {
  min-width: 10px;
}

.slider {
  flex: 1;
  accent-color: #4a9eff;
  height: 3px;
}

.opacityValue {
  min-width: 30px;
  text-align: right;
  color: #aaa;
}

/* ── Mobile touch targets ───────────────────────────────────── */
@media (max-width: 768px) {
  .manager {
    flex-direction: row;
    flex-wrap: wrap;
    padding: 6px;
    gap: 6px;
  }

  .title {
    width: 100%;
    margin-bottom: 0;
  }

  .row {
    flex: 1 1 calc(50% - 6px);
    min-width: 140px;
  }

  .toggle input[type='checkbox'] {
    width: 18px;
    height: 18px;
  }

  .colormapSelect {
    padding: 6px 8px;
    font-size: 12px;
  }

  .slider {
    height: 20px; /* larger touch area */
    cursor: pointer;
  }
}