/* ---------- Waveform page ---------- */
  #page-waveform { background: var(--bg); }
  .wf-layout { display: flex; height: 100%; }
  #wfValuesPanel { width: 270px; flex-shrink: 0; background: var(--bg); border-right: 1px solid var(--panel-line); overflow-y: auto; padding: 16px; }
  .wf-card { background: var(--panel); border: 1px solid var(--panel-line); border-radius: 16px; padding: 20px; }
  .wf-card h3 { margin: 0 0 14px; font-size: 21px; font-weight: 800; color: var(--text); }
  #wfSimulateBtn { width: 100%; padding: 12px; border-radius: 10px; border: none; background: var(--accent); color: #fff; font-weight: 700; font-size: 14px; margin-bottom: 8px; cursor: pointer; }
  #wfTopSimulateBtn {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
    box-shadow: 0 3px 12px rgba(193,117,46,.28);
    font-weight: 800;
  }
  #wfTopSimulateBtn svg { color: #fff; }
  [data-theme="dark"] #wfTopSimulateBtn {
    background: var(--accent);
    color: #17130b;
    border-color: var(--accent-strong);
    box-shadow: 0 3px 14px rgba(216,166,63,.30);
  }
  [data-theme="dark"] #wfTopSimulateBtn svg { color: #17130b; }
  #wfStatus { font-size: 12px; color: var(--text-dim); min-height: 16px; margin-bottom: 8px; }
  #wfTraceSelect { width: 100%; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--panel-line); background: var(--bg); color: var(--text); font-size: 14px; margin-bottom: 12px; font-weight: 600; }
  .wf-stat-row { display: flex; justify-content: space-between; padding: 10px 2px; border-bottom: 1px dashed var(--panel-line); font-size: 14px; color: var(--text); }
  .wf-stat-row .stat-label { color: var(--text-dim); }
  .wf-stat-row:last-child { border-bottom: none; color: var(--text-dim); }
  #wfDownloadRow { display: flex; gap: 8px; margin-top: 16px; }
  #wfDownloadRow button { flex: 1; padding: 9px; border-radius: 8px; border: 1px solid var(--panel-line); background: var(--bg); color: var(--text); font-size: 12px; cursor: pointer; }

  #wfChartArea { flex: 1; display: flex; flex-direction: column; padding: 20px; overflow: auto; }
  #wfLegend { display: flex; gap: 22px; margin-bottom: 14px; align-items: center; flex-wrap: wrap; }
  .legend-chip { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text); cursor: pointer; opacity: 0.5; }
  .legend-chip.active { opacity: 1; font-weight: 700; }
  .legend-swatch { width: 15px; height: 15px; border-radius: 50%; border: 2px solid var(--accent); flex-shrink: 0; }
  .legend-swatch.solid { background: var(--accent); }
  .legend-swatch.dashed { background: repeating-linear-gradient(45deg, var(--accent) 0 2px, transparent 2px 4px); }
  .legend-swatch.dotted { background-image: radial-gradient(var(--accent) 35%, transparent 36%); background-size: 5px 5px; }
  #wfChartWrap { background: #ffffff; border: 1px solid var(--panel-line); border-radius: 16px; padding: 14px; aspect-ratio: 1 / 1; max-width: 760px; width: 100%; }
  #wfError { color: #e05656; font-size: 12px; padding: 10px 0; font-family: monospace; white-space: pre-wrap; }

  #page-transfer { display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 10px; color: var(--text-dim); padding: 20px; text-align: center; }