.toolbar{display:flex;align-items:center;gap:10px;padding:10px 16px;border-bottom:1px solid var(--border);background:var(--bg-elevated);flex-wrap:wrap}.toolbar-divider{width:1px;height:20px;background:var(--border)}.toolbar-spacer{flex:1}.run-status{font-size:12px;color:var(--text-faint);min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.workspace{flex:1;display:flex;min-height:0}.editor-pane{flex:1 1 60%;display:flex;flex-direction:column;min-width:0}.resize-handle{flex:0 0 6px;position:relative;cursor:col-resize;touch-action:none}.resize-handle:after{content:"";position:absolute;top:0;bottom:0;left:2px;width:2px;background:var(--border)}.resize-handle:hover:after,.resize-handle.dragging:after{background:var(--accent)}.resize-handle:focus-visible{outline:none}.resize-handle:focus-visible:after{background:var(--accent);width:3px}.side-pane{flex:1 1 40%;display:flex;flex-direction:column;min-width:280px;max-width:560px}.tab-bar{display:flex;align-items:stretch;gap:2px;padding:6px 6px 0;background:var(--bg-elevated);border-bottom:1px solid var(--border);overflow-x:auto}.tab{display:flex;align-items:center;gap:8px;padding:7px 10px;font-size:12.5px;font-family:var(--font-mono);color:var(--text-muted);background:transparent;border:1px solid transparent;border-bottom:none;border-radius:6px 6px 0 0;cursor:pointer;white-space:nowrap}.tab.active{background:var(--bg);border-color:var(--border);color:var(--text)}.tab-close{display:inline-flex;align-items:center;justify-content:center;width:14px;height:14px;border-radius:3px;color:var(--text-faint)}.tab-close svg{width:12px;height:12px;display:block}.tab-close:hover{background:var(--bg-inset);color:var(--danger)}.tab-add{display:flex;align-items:center;justify-content:center;width:28px;color:var(--text-faint);cursor:pointer;border-radius:6px 6px 0 0}.tab-add svg{width:14px;height:14px;display:block}.tab-add:hover{color:var(--accent);background:var(--bg)}.editor-host{flex:1;min-height:0;overflow:auto}.editor-host .cm-editor{height:100%;font-size:13.5px}.editor-host .cm-scroller{font-family:var(--font-mono);line-height:1.6}.pane-tabs{display:flex;border-bottom:1px solid var(--border);background:var(--bg-elevated)}.pane-tab{padding:9px 14px;font-size:12.5px;font-weight:600;color:var(--text-muted);cursor:pointer;border-bottom:2px solid transparent}.pane-tab.active{color:var(--accent);border-bottom-color:var(--accent)}.pane-body{flex:1;min-height:0;display:none;flex-direction:column}.pane-body.active{display:flex}.console{flex:1;margin:0;padding:12px 14px;overflow:auto;font-family:var(--font-mono);font-size:12.5px;line-height:1.65;white-space:pre-wrap;word-break:break-word;background:var(--bg)}.console-line-stderr{color:var(--danger)}.console-line-status{color:var(--text-faint);font-style:italic}.console-empty{color:var(--text-faint)}.console-input-row{display:flex;align-items:center;gap:8px}.console-input-prompt{color:var(--accent);font-weight:700}.console-input-field{flex:1;min-width:0;border:none;outline:none;background:transparent;color:var(--text);font-family:var(--font-mono);font-size:12.5px;padding:0}.console-line-input-echo{color:var(--text-muted)}.console-line-input-echo:before{content:"❯ ";color:var(--accent)}.stdin-panel{flex:1;display:flex;flex-direction:column;padding:12px 14px;gap:8px}.stdin-hint{font-size:12px;color:var(--text-muted);line-height:1.5}.stdin-textarea{flex:1;resize:none;font-family:var(--font-mono);font-size:12.5px;line-height:1.6;padding:10px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg);color:var(--text)}.stdin-textarea:focus{outline:2px solid var(--accent);outline-offset:1px}@media(max-width:860px){.workspace{flex-direction:column}.editor-pane{border-bottom:1px solid var(--border);flex:1 1 55%!important}.resize-handle{display:none}.side-pane{max-width:none;flex:1 1 45%}}