.subtitle { font-size: 12px; color: var(--ink-light); font-weight: 300; letter-spacing: 0.1em; border-left: 2px solid var(--accent); padding-left: 10px; }
    .panel-header { padding: 10px 16px; border-bottom: 1px solid var(--border); background: var(--bg); display: flex; justify-content: space-between; align-items: center; gap: 12px; }
    .panel-label { font-size: 10px; letter-spacing: 0.2em; color: var(--ink-light); text-transform: uppercase; }
    .preview-area { display:flex; align-items:center; justify-content:center; min-height: 420px; padding: 16px; background:#fff; }
    .preview-area canvas { max-width:100%; max-height:560px; display:block; touch-action:none; }
    .tool-note { font-size:12px; color:var(--ink-light); line-height:1.75; }
    .range-value { min-width:52px; text-align:right; font-size:12px; color:var(--ink-light); }
    .hidden { display:none !important; }
    .fmt-row { display:flex; flex-wrap:wrap; gap:6px; }
    .fmt-btn { min-width: 68px; }
    .fmt-btn.active { background: var(--blue); color: #fff; border-color: var(--blue); }
    .fmt-btn:disabled { opacity:.45; cursor:not-allowed; }
    .action-bar { display:flex; flex-direction:column; gap:10px; }
    .small-btn { padding: 9px 12px; border:1px solid var(--blue); background:#fff; color:var(--blue); border-radius:6px; font:inherit; font-size:12px; cursor:pointer; transition: border-color .15s, color .15s, background .15s, opacity .15s; }
    .small-btn:hover { background: rgba(44,123,229,.08); }
    .small-btn:disabled { opacity:.45; cursor:not-allowed; }
    .small-btn.active { background: var(--blue); color:#fff; border-color: var(--blue); }
    .position-help { margin-top:8px; font-size:12px; color:var(--ink-light); line-height:1.7; }
    .layer-list { display:flex; flex-direction:column; gap:8px; margin-top:10px; max-height:300px; overflow:auto; }
    .layer-item { display:flex; align-items:center; gap:8px; border:1px solid var(--border); border-radius:10px; background:#fff; padding:8px 10px; cursor:pointer; transition: border-color .15s, background .15s, box-shadow .15s; }
    .layer-item.active { border-color: var(--blue); background: rgba(44,123,229,.06); }
    .layer-item.multi { box-shadow: inset 0 0 0 1px rgba(44,123,229,.28); }
    .layer-item.dragging { opacity:.55; }
    .layer-item.drag-over { border-color: var(--blue); box-shadow: 0 0 0 2px rgba(44,123,229,.18); }
    .layer-check { flex:0 0 auto; width:16px; height:16px; accent-color: var(--blue); cursor:pointer; }
    .layer-thumb { width:34px; height:34px; border:1px solid var(--border); border-radius:6px; background:#f6f6f6; display:flex; align-items:center; justify-content:center; overflow:hidden; flex:0 0 34px; }
    .layer-thumb img { width:100%; height:100%; object-fit:cover; }
    .layer-name-wrap { flex:1; min-width:0; }
    .layer-name { font-size:12px; color:var(--ink); white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
    .layer-sub { font-size:10px; color:var(--ink-light); margin-top:2px; }
    .layer-actions { display:flex; gap:4px; flex-wrap:wrap; }
    .icon-btn { border:1px solid var(--blue); background:#fff; color:var(--blue); border-radius:6px; font:inherit; font-size:11px; line-height:1; padding:6px 8px; cursor:pointer; }
    .icon-btn:hover { background: rgba(44,123,229,.08); }
    .icon-btn.locked { background: var(--blue); color:#fff; }
    .section-actions { display:flex; gap:6px; flex-wrap:wrap; margin-top:10px; }
    .control-group { margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--border); }
    .control-group:first-of-type { margin-top: 10px; }
    .group-title { margin-bottom: 8px; font-size: 11px; color: var(--ink-light); letter-spacing: .08em; }
    .button-grid { display:grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap:8px; }
    .button-grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .button-grid .small-btn { width: 100%; }
    .sidebar.image-overlay-sidebar { gap: 0; overflow: hidden; }
    .sidebar-tabs {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      border-bottom: 1px solid var(--border);
      background: #fff;
      position: sticky;
      top: 0;
      z-index: 2;
      margin: 0;
      gap: 0;
    }
    .sidebar-tab {
      border: none;
      border-right: 1px solid var(--border);
      background: #fff;
      color: var(--ink-light);
      font: inherit;
      font-size: 11px;
      font-weight: 700;
      letter-spacing: .06em;
      min-height: 46px;
      padding: 0 6px;
      cursor: pointer;
      border-radius: 0;
      transition: background .15s ease, color .15s ease;
    }
    .sidebar-tab:last-child { border-right: none; }
    .sidebar-tab:hover { background: #F8FBFF; color: var(--blue); }
    .sidebar-tab.active { background: var(--blue-light); color: var(--blue); box-shadow: inset 0 -2px 0 var(--blue); }
    .sidebar-panel.hidden { display:none !important; }
    .sidebar-panel .sidebar-section + .sidebar-section { border-top: 1px solid var(--border); }
    @media (max-width: 560px) {
      .sidebar-tabs { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    }
    .empty-note { padding:12px; border:1px dashed var(--border); border-radius:8px; font-size:12px; color:var(--ink-light); background:#fff; }
    .selected-name { display:block; width:100%; font-size:12px; color:var(--ink); line-height:1.6; word-break:break-all; }
    .selection-note { margin-top:8px; font-size:11px; color:var(--ink-light); line-height:1.6; }

/* ============================================================
   Spacing fix: edit tab selection note
   ============================================================ */
.selection-note {
  margin: 8px 0 16px;
  padding-bottom: 4px;
}

.selection-note:not(:empty) + .ctrl-row {
  margin-top: 4px;
}