.tool-drag-handle{touch-action:none;user-select:none;-webkit-user-select:none;cursor:grab}
.tool-drag-handle.tool-dragging{cursor:grabbing}
.tool-heading h2.tool-drag-handle,.notes-heading h2.tool-drag-handle{flex:1;min-height:40px;display:flex;align-items:center;gap:8px}
.tool-heading h2.tool-drag-handle::before,.notes-heading h2.tool-drag-handle::before{content:'⠿';font-size:20px;color:var(--muted)}
.calculator-panel.tool-positioned{max-height:calc(var(--zoom-view-height,90vh) - 12px)!important}
.calculator-panel .tool-heading{position:sticky;top:-16px;z-index:2;background:var(--surface);padding-block:4px}
body.notes-floating #app{margin-left:0!important;margin-right:0!important;margin-top:0!important;padding-bottom:64px!important}
body.notes-floating .player-top{top:var(--zoom-top)!important}
body.notes-floating .player-foot{bottom:0!important}
.lesson-notes.tool-positioned{border:1px solid var(--line);border-radius:12px}
.tool-size-controls{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px;padding:6px 8px;flex:none;background:var(--surface)}
.tool-size-controls button{min-width:0;min-height:40px;padding:4px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--ink);font:700 20px/1.2 var(--font);cursor:pointer}
.tool-size-controls .tool-size-grip{touch-action:none;user-select:none;cursor:nwse-resize;color:var(--brand)}
.calculator-panel[open]{display:flex;flex-direction:column;overflow:hidden}
.calculator-panel .tool-heading{position:static;flex:none;margin-bottom:0}
.calculator-body{min-height:0;overflow:auto;overscroll-behavior:contain;flex:1}
.lesson-notes.tool-sized .notes-resize{display:none}
.lesson-notes.tool-sized{min-width:0;max-width:calc(var(--zoom-view-width,100vw) - 8px);max-height:calc(var(--zoom-view-height,90vh) - 8px)}
.lesson-notes.tool-sized .notes-viewport{min-height:80px}