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button.primary{border-color:var(--accent);background:var(--accent);color:var(--text-on-accent)}.code-editor{resize:none;width:100%;min-height:0;color:var(--text-code);white-space:pre;tab-size:2;background:0 0;border:0;outline:none;flex:1;margin:0;padding:18px 20px;font-family:SF Mono,JetBrains Mono,Menlo,Consolas,monospace;font-size:13.5px;line-height:1.6;overflow:auto}.layout-switch{gap:4px;margin-right:8px;display:flex}.app-body[data-layout=learn] .blockly-pane{flex:0 480px;min-width:220px}.app-body[data-layout=learn] .code-pane{flex:1 1 0;min-width:200px}.app-body[data-layout=learn] .stage-pane{flex:0 320px;min-width:220px}.app-body[data-layout=create] .blockly-pane{flex:0 480px;min-width:220px}.app-body[data-layout=create] .code-pane{flex:0 300px;min-width:200px}.app-body[data-layout=create] .stage-pane{flex:1 1 0;min-width:220px}.app-body[data-layout=code] .blockly-pane{flex:0 320px;min-width:220px}.app-body[data-layout=code] .code-pane{flex:auto}.app-body[data-layout=create] 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var(--shadow);border-radius:8px;align-items:center;gap:12px;padding:10px 14px;font-size:12px;display:flex;position:fixed;bottom:36px;right:16px}.session-toast button{color:var(--accent);cursor:pointer;background:0 0;border:0;font-size:12px}.code-editor-row{flex:1;min-height:0;display:flex}.code-gutter{background:var(--bg-editor-gutter);border-right:1px solid var(--border-faint);color:var(--text-code-gutter);text-align:right;-webkit-user-select:none;user-select:none;flex:0 0 44px;padding:18px 8px 18px 0;font-family:SF Mono,JetBrains Mono,Menlo,Consolas,monospace;font-size:13.5px;line-height:1.6;overflow:hidden}.code-editor{padding-left:14px}.code-monaco{flex:1;min-width:0;min-height:0}.code-monaco .monaco-editor,.code-monaco .overflow-guard{border-radius:0}.bottom-panel{background:var(--bg-surface);border-top:1px solid var(--border);grid-area:3/1/auto/4}.bottom-tabs{align-items:center;gap:2px;height:28px;padding:0 8px;display:flex}.bottom-tab{color:var(--text-muted);cursor:pointer;background:0 0;border:0;border-radius:5px;padding:4px 10px;font-size:12px}.bottom-tab:hover{background:var(--bg-hover-strong)}.bottom-tab.active{background:var(--bg-button);color:var(--text-primary)}.bottom-body{border-top:1px solid var(--border-faint);height:150px;padding:8px 14px;overflow:auto}:is(.bottom-body:has(.terminal-panel),.bottom-body:has(.problems-list)){padding:0;overflow:hidden}.run-button{border:1px solid var(--success);color:var(--success);cursor:pointer;background:0 0;border-radius:6px;padding:5px 12px;font-size:12px}.run-button:hover:not(:disabled){background:color-mix(in srgb, var(--success) 16%, transparent)}.run-button:disabled{opacity:.4;cursor:not-allowed}.run-button.stop{border-color:var(--error);color:var(--error)}.run-button.stop:hover:not(:disabled){background:color-mix(in srgb, var(--error) 16%, transparent)}.terminal-panel{flex-direction:column;height:100%;min-height:0;display:flex}.terminal-xterm{background:var(--bg-editor);flex:1;min-height:0;padding:6px 10px}.terminal-xterm .xterm{height:100%}.terminal-xterm .xterm-viewport{background:0 0!important}.problems-list{height:100%;margin:0;padding:0;list-style:none;overflow:auto}.problems-list li button{width:100%;color:var(--text-primary);text-align:left;cursor:pointer;background:0 0;border:none;align-items:baseline;gap:10px;padding:6px 14px;font-size:12.5px;display:flex}.problems-list li button:hover{background:var(--accent-soft)}.problem-severity{text-transform:uppercase;flex:none;font-size:11px}.problem-severity.error{color:var(--error)}.problem-severity.warning{color:var(--warning)}.problem-file{color:var(--accent);flex:none;font-family:SF Mono,JetBrains Mono,Menlo,Consolas,monospace;font-size:12px}.problem-message{color:var(--text-secondary)}.bottom-hint{color:var(--text-faint);white-space:pre-wrap;margin:0;font-family:SF 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button:hover{background:var(--bg-hover-palette);color:var(--text-on-accent)}.palette-empty{color:var(--text-faint);padding:10px;font-size:12px}.app{grid-template-rows:auto minmax(0,1fr) auto auto;grid-template-columns:48px auto minmax(0,1fr);height:100%;display:grid}.app-header{grid-area:1/2/auto/4}.app-body{grid-area:2/3}.activity-bar{background:var(--bg-activity);border-right:1px solid var(--border);flex-direction:column;grid-area:1/1/5;align-items:center;gap:4px;width:48px;padding:8px 0;display:flex}.activity-item{width:34px;height:34px;color:var(--text-muted);cursor:pointer;background:0 0;border:0;border-radius:7px;font-size:16px}.activity-item:hover{background:var(--bg-hover)}.activity-item.active{background:var(--bg-activity-active);color:var(--text-primary);box-shadow:inset 2px 0 0 var(--accent)}.activity-spacer{flex:1}.sidebar{background:var(--bg-surface);border-right:1px solid var(--border);grid-area:2/2;width:200px;padding:8px 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.sidebar-delete:hover{color:var(--error)}.sidebar-subtitle{color:var(--text-faint);letter-spacing:.08em;text-transform:uppercase;justify-content:space-between;align-items:center;padding:8px 12px 4px;font-size:10.5px;display:flex}.sidebar-add{border:1px solid var(--border-strong);width:18px;height:18px;color:var(--text-muted);cursor:pointer;background:0 0;border-radius:4px;place-items:center;font-size:11px;line-height:1;display:grid}.sidebar-add:hover{border-color:var(--accent);color:var(--text-primary)}.sidebar-input{border:1px solid var(--accent);background:var(--bg-input);color:var(--text-primary);border-radius:5px;outline:none;margin:4px 12px;padding:4px 6px;font-size:12px}.sidebar-meta{color:var(--text-faint);font-size:10.5px}