/* A compact personal workspace: library, focused chapter, visible contents. */
.code-page{padding:20px 0 36px}
.code-modes{display:flex;gap:4px;padding:3px;background:var(--wash);border-radius:6px}
.code-modes button{padding:6px 13px;border-radius:4px;color:var(--muted);font-size:13px;white-space:nowrap}
.code-modes button[aria-pressed=true]{background:var(--card);color:var(--ink);box-shadow:0 1px 3px #0001;font-weight:600}
.code-notice{color:var(--muted);font-size:12px;margin-bottom:14px}.code-notice:empty{display:none}
.code-workspace{display:grid;grid-template-columns:224px minmax(0,1fr);gap:26px;align-items:start}.code-workspace-content{min-width:0}.knowledge-layout{display:grid;grid-template-columns:minmax(0,1fr) 168px;gap:26px;align-items:start}
.knowledge-sidebar,.knowledge-toc{position:sticky;top:84px;min-width:0;max-height:calc(100dvh - 106px);font-size:13px}
.knowledge-sidebar{border-right:1px solid var(--line);padding-right:18px}
.knowledge-filters input,.code-page select{width:100%;min-width:0;padding:8px 10px;border:1px solid var(--line);border-radius:5px;color:var(--ink);background:var(--card);font:12px var(--sans)}
.knowledge-filters input{margin-bottom:8px}
#knowledge-list{max-height:calc(100dvh - 208px);overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:var(--line) transparent;padding-right:4px}
.knowledge-group{font-size:10px;font-weight:600;letter-spacing:.04em;color:var(--muted);padding:16px 8px 5px}
#knowledge-list a{display:block;padding:9px 9px;margin:1px 0;line-height:1.5;border-radius:4px;border-left:2px solid transparent;overflow-wrap:anywhere;color:var(--ink)}
#knowledge-list a:hover{background:var(--wash)}#knowledge-list a[aria-current]{border-left-color:var(--green);background:var(--wash);color:var(--green);font-weight:600}
.knowledge-empty{padding:20px 8px;color:var(--muted);font-size:12px;line-height:1.9}
.knowledge-article{min-width:0;max-width:760px;width:100%;margin:auto}
.chapter-toolbar{display:flex;align-items:center;gap:12px;margin:0 0 22px;padding:10px 0;border-block:1px solid var(--line)}
.chapter-toolbar select{width:auto;flex:1;background:var(--paper);border:0;padding-left:0;font-size:13px;font-weight:600}
#knowledge-practice{color:var(--green);font-size:11px;white-space:nowrap;padding:5px 0}
#knowledge-practice:disabled{color:var(--muted);cursor:default;opacity:.6}
.knowledge-toc{padding-left:16px;border-left:1px solid var(--line)}.knowledge-toc h2{font:600 12px var(--sans);margin:0 0 12px}
#knowledge-headings{max-height:calc(100dvh - 145px);overflow:auto;scrollbar-width:thin;scrollbar-color:var(--line) transparent}
.knowledge-toc a{display:block;padding:6px 0;color:var(--muted);font-size:11px;line-height:1.6;overflow-wrap:anywhere}
.knowledge-toc a.toc-chapter{font-size:12px;margin-top:6px}.knowledge-toc a.toc-subheading{padding-left:10px}
.knowledge-toc a[aria-current]{color:var(--green)}.knowledge-toc a.toc-chapter[aria-current]{font-weight:600}
.knowledge-article .markdown-body{font-size:14px;line-height:1.85;overflow-wrap:anywhere}
.knowledge-article .markdown-body :is(h1,h2,h3,h4){font-family:var(--sans);scroll-margin-top:86px}
.knowledge-article .markdown-body h1{font-size:22px}.knowledge-article .markdown-body h2{font-size:18px}.knowledge-article .markdown-body h3{font-size:16px}
.knowledge-chapter> :first-child{margin-top:0!important}.knowledge-article .markdown-body pre{max-width:100%;overflow:auto}
.knowledge-example{margin:14px 0 26px;min-width:0}.knowledge-example-actions{display:flex;justify-content:flex-end;gap:10px;flex-wrap:wrap;margin-bottom:6px}
.knowledge-example-actions button{font:11px var(--sans);color:var(--green);padding:3px 0}
.knowledge-example[data-runnable=true]>pre{border-left:2px solid var(--green)}.code-help{font-size:12px;line-height:1.8;color:var(--muted);margin:8px 0}
.code-cell{border:1px solid var(--line);border-radius:6px;overflow:hidden;background:var(--card);margin-top:6px;scroll-margin-top:86px}
.code-cell-toolbar{display:flex;align-items:center;flex-wrap:wrap;gap:8px;padding:10px;border-bottom:1px solid var(--line);font:11px var(--sans)}
.code-cell-toolbar>span:first-child{color:var(--muted);margin-right:2px}
.code-cell-toolbar button{padding:5px 8px;font:11px var(--sans);border-radius:4px;color:var(--muted)}
.code-cell-toolbar .code-run{background:var(--green);color:var(--paper);font-weight:600}
.code-cell button:disabled,.chapter-pagination button:disabled{opacity:.45;cursor:default}
.code-cell-save{margin-left:auto}.code-cell-status{flex-basis:100%;font-size:11px;color:var(--muted)}.code-cell-status:empty{display:none}
.code-cell-workspace{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr)}.code-editor-pane,.code-result-pane{min-width:0}
.code-editor-pane{border-right:1px solid var(--line)}.code-pane-label{font:11px var(--sans);color:var(--muted);padding:10px 12px 0}
.code-editor{display:block;width:100%;height:190px;min-height:120px;resize:vertical;padding:12px;border:0;background:var(--card);color:var(--ink);font:13px/1.75 Consolas,'Cascadia Code',monospace;tab-size:4;box-sizing:border-box;outline-offset:-3px!important}
.code-output{margin:0!important;border:0!important;padding:12px!important;min-height:125px;max-height:320px;border-radius:0!important;white-space:pre-wrap!important;overflow-wrap:anywhere;background:var(--card)!important;font:13px/1.75 Consolas,monospace;color:var(--ink)}
.code-input{margin:0 12px 12px;border-top:1px solid var(--line);padding-top:9px}.code-input summary{font-size:11px;color:var(--muted);cursor:pointer}.code-input label{font-size:10px;color:var(--muted);display:block;margin-top:8px}
.code-stdin{display:block;box-sizing:border-box;width:100%;margin-top:6px;resize:vertical;padding:8px;border:1px solid var(--line);border-radius:4px;background:var(--paper);color:var(--ink);font:12px/1.6 Consolas,monospace}
.code-shortcut{padding:8px 12px;margin:0!important;border-top:1px solid var(--line);font-size:10px;color:var(--muted)}.code-plots img{display:block;max-width:100%;height:auto;margin:12px auto}
.code-cell .code-pane-label{margin:0}.code-cell .code-input{margin:0 12px 12px;padding:9px 0 0;border-left:0}
.chapter-pagination{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);margin-top:28px;padding-top:15px;font-size:12px;color:var(--muted)}.chapter-pagination button{font-size:12px;color:var(--green);padding:5px}
#playground-view{max-width:1040px;margin:0 auto}.playground-heading{display:flex;align-items:center;gap:12px}.playground-heading h2{font:600 22px var(--sans);margin-right:auto}.playground-heading label{font-size:12px;color:var(--muted)}.playground-heading select{width:auto;min-width:120px}
#playground-view .code-editor{height:380px}#playground-view .code-output{min-height:230px;max-height:400px}
.code-page :is(button,a,input,select,textarea,summary):focus-visible{outline:2px solid var(--green);outline-offset:3px}
@media(max-width:1150px){.code-workspace{grid-template-columns:210px minmax(0,1fr);gap:24px}.knowledge-layout{grid-template-columns:minmax(0,1fr)}.knowledge-toc{display:none}.code-cell-workspace{grid-template-columns:minmax(0,1fr)}.code-editor-pane{border-right:0;border-bottom:1px solid var(--line)}#playground-view .code-cell-workspace{grid-template-columns:minmax(0,1.1fr) minmax(0,1fr)}#playground-view .code-editor-pane{border-right:1px solid var(--line);border-bottom:0}}
@media(max-width:760px){.code-page{padding:14px 0 24px}.code-workspace{grid-template-columns:minmax(0,1fr);gap:18px}
.knowledge-layout{grid-template-columns:minmax(0,1fr);gap:18px}.knowledge-sidebar{position:static;padding:0;border:1px solid var(--line);border-radius:5px;max-height:none;background:var(--card)}.knowledge-filters{padding:4px 12px 0}#knowledge-list{padding:0 12px 10px;max-height:300px}.chapter-toolbar{margin:0 0 18px;gap:8px}#knowledge-practice{font-size:10px}.chapter-toolbar select{font-size:12px}.code-cell-toolbar{gap:5px;padding:8px}.code-cell-save{font-size:10px!important}.code-editor{height:170px;font-size:12px}.code-output{font-size:12px;min-height:80px}#playground-view .code-cell-workspace{grid-template-columns:minmax(0,1fr)}#playground-view .code-editor-pane{border-right:0;border-bottom:1px solid var(--line)}#playground-view .code-editor{height:260px}#playground-view .code-output{min-height:140px}.knowledge-article .markdown-body{font-size:14px}.knowledge-article .markdown-body h1{font-size:20px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

#knowledge-list-toggle{display:none}
@media(max-width:760px){#knowledge-list-toggle{display:block;color:var(--green);font-size:11px;margin:10px 12px;padding:4px 0}#knowledge-directory[data-collapsed=true] #knowledge-list{display:none}.knowledge-filters{padding-top:12px}}

/* Workspace controls stay beside the content instead of consuming a page header. */
.code-workspace-navigation{margin-bottom:16px}
.code-workspace-navigation .code-modes{flex-direction:column;background:none;padding:0;gap:2px;border-radius:0}
.code-workspace-navigation .code-modes button{text-align:left;padding:8px 10px;border-left:2px solid transparent;border-radius:0}
.code-workspace-navigation .code-modes button[aria-pressed=true]{border-color:var(--green);background:var(--wash);color:var(--green);box-shadow:none}
.code-question-bank{display:block;padding:10px 12px 0;font-size:11px;color:var(--muted)}
.knowledge-sidebar,#knowledge-directory{display:flex;flex-direction:column;min-height:0}
.code-workspace-navigation,.knowledge-filters,#knowledge-list-toggle{flex:none}
body .code-page #knowledge-list{max-height:none;min-height:0;flex:1}
@media(max-width:760px){
 .code-workspace-navigation{display:flex;align-items:center;gap:8px;margin:0;padding:4px 12px;border-bottom:1px solid var(--line)}
 .code-workspace-navigation .code-modes{flex-direction:row;gap:8px}
 .code-workspace-navigation .code-modes button{padding:8px 0;font-size:11px;border-left:0;border-bottom:2px solid transparent;background:none}
 .code-workspace-navigation .code-modes button[aria-pressed=true]{background:none}
 .code-question-bank{padding:8px 0;margin-left:auto;font-size:10px;white-space:nowrap}
 body .code-page #knowledge-list{max-height:300px;flex:none}
}