.book-prose .math-widget-mount:has(.va-workbench){max-width:none}.va-workbench{--va-text: var(--ink);--va-operator: var(--muted);--va-carry: #dc2626;--va-borrow: var(--accent);--va-result: var(--success);--va-line: var(--line);--va-highlight: color-mix(in srgb, var(--accent) 14%, transparent);--va-highlight-border: color-mix(in srgb, var(--accent) 38%, transparent);--va-error: #dc2626;--va-canvas-dot: color-mix(in srgb, var(--line) 90%, transparent);--va-panel-bg: var(--card-bg);--va-panel-border: var(--card-border);--va-stage-bg: var(--paper);width:min(1100px,92vw);max-width:none;margin-top:1.25rem}[data-theme=dark] .va-workbench,:root:not([data-theme=light]) .va-workbench{--va-carry: #f87171;--va-error: #f87171}@media(prefers-color-scheme: dark){:root:not([data-theme=light]) .va-workbench{--va-carry: #f87171;--va-error: #f87171}}.va-workbench__shell{display:flex;flex-direction:column;min-height:24rem;border:1px solid var(--va-panel-border);border-radius:14px;overflow:hidden;background:var(--va-panel-bg);box-shadow:0 10px 32px var(--shadow-soft)}@media(min-width: 768px){.va-workbench__shell{flex-direction:row;min-height:32rem}}.va-workbench__mobile-toggle{display:none;width:100%;font:inherit;font-weight:600;font-size:.9rem;padding:.75rem 1rem;border:0;border-bottom:1px solid var(--line);background:color-mix(in srgb, var(--paper) 50%, var(--card-bg));color:var(--ink);cursor:pointer}.va-workbench__sidebar{flex-shrink:0;display:flex;flex-direction:column;gap:1rem;padding:1.25rem 1.5rem;border-bottom:1px solid var(--line);background:var(--va-panel-bg);overflow-y:auto}@media(min-width: 768px){.va-workbench__sidebar{width:18rem;border-bottom:none;border-right:1px solid var(--line)}}.va-workbench__brand{display:flex;align-items:center;flex-wrap:wrap;gap:.75rem;margin-bottom:.25rem}.va-workbench__brand-icon{display:flex;align-items:center;justify-content:center;width:2.5rem;height:2.5rem;border-radius:.75rem;background:var(--accent);color:var(--paper);font-size:1.25rem;font-weight:700;box-shadow:0 4px 12px var(--shadow-soft)}.va-workbench__brand-text{font-size:1rem;line-height:1.3;color:var(--ink)}.va-workbench__brand-text strong{color:var(--accent);font-weight:600}.va-workbench__sound-btn{margin-left:auto;font:inherit;font-size:.72rem;font-weight:600;padding:.35rem .55rem;border:1px solid var(--line);border-radius:999px;background:color-mix(in srgb, var(--paper) 55%, var(--card-bg));color:var(--soft-ink);cursor:pointer}.va-workbench__sound-btn:hover{border-color:var(--accent);color:var(--ink)}.va-workbench__field{display:flex;flex-direction:column;gap:.35rem}.va-workbench__label{font-size:.8125rem;font-weight:600;color:var(--soft-ink)}.va-workbench__op-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:.5rem}.va-workbench__op-btn{font:inherit;font-size:1.25rem;font-weight:700;padding:.5rem;border:1px solid var(--line);border-radius:.5rem;background:color-mix(in srgb, var(--paper) 60%, var(--card-bg));color:var(--soft-ink);cursor:pointer;transition:background .12s ease,border-color .12s ease,color .12s ease}.va-workbench__op-btn:hover{border-color:var(--accent);color:var(--ink)}.va-workbench__op-btn--active{border-color:color-mix(in srgb, var(--accent) 45%, var(--line));background:color-mix(in srgb, var(--accent) 12%, var(--card-bg));color:var(--accent)}.va-workbench__textarea{width:100%;padding:.75rem 1rem;font-family:var(--mono);font-size:1.0625rem;line-height:1.4;color:var(--ink);background:color-mix(in srgb, var(--paper) 50%, var(--card-bg));border:1px solid var(--line);border-radius:.5rem;resize:vertical;min-height:5rem}.va-workbench__textarea:focus{outline:2px solid var(--accent);outline-offset:1px}.va-workbench__hint,.va-workbench__footer-note{font-size:.75rem;line-height:1.45;color:var(--muted);margin:0}.va-workbench__generate{font:inherit;font-weight:600;width:100%;padding:.75rem 1rem;border:none;border-radius:.5rem;background:var(--accent);color:var(--paper);cursor:pointer;box-shadow:0 4px 14px var(--shadow-soft);transition:filter .12s ease,transform .08s ease}.va-workbench__generate:hover{filter:brightness(1.06)}.va-workbench__generate:active{transform:scale(0.98)}.va-workbench__anim{padding-top:1rem;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:.75rem}.va-workbench__transport{display:flex;align-items:center;justify-content:space-between;gap:.5rem;padding:.35rem;border:1px solid var(--line);border-radius:.5rem;background:color-mix(in srgb, var(--paper) 40%, var(--card-bg))}.va-workbench__transport-btn{font:inherit;font-size:1.5rem;line-height:1;padding:.35rem .65rem;border:none;border-radius:.35rem;background:rgba(0,0,0,0);color:var(--soft-ink);cursor:pointer}.va-workbench__transport-btn:hover{color:var(--accent);background:var(--card-bg)}.va-workbench__play{font:inherit;font-weight:600;flex:1;padding:.45rem 1rem;border:none;border-radius:.35rem;background:var(--accent);color:var(--paper);cursor:pointer}.va-workbench__play:hover{filter:brightness(1.06)}.va-workbench__speed{display:flex;align-items:center;gap:.5rem;font-size:.75rem;color:var(--muted)}.va-workbench__speed-slider{flex:1;accent-color:var(--accent)}.va-workbench__footer-note{margin-top:auto;text-align:center}.va-workbench__stage{flex:1;display:flex;flex-direction:column;min-height:18rem;background:var(--va-stage-bg);position:relative}.va-workbench__message-box{position:relative;z-index:1;width:100%;padding:.75rem .9rem;border-bottom:1px solid var(--line);background:color-mix(in srgb, var(--paper) 80%, var(--card-bg))}.va-workbench__message-box--error .va-workbench__message{color:var(--va-error)}.va-workbench__message-head{display:flex;align-items:baseline;justify-content:space-between;gap:.75rem}.va-workbench__message{font-size:.95rem;font-weight:600;color:var(--ink);margin:0;line-height:1.4;text-align:left}.va-workbench__progress-track{width:100%;height:.35rem;border-radius:999px;background:var(--line);overflow:hidden}.va-workbench__progress-fill{height:100%;background:var(--accent);transition:width .25s ease}.va-workbench__step-counter{font-size:.72rem;color:var(--muted);margin:0;white-space:nowrap}.va-workbench__canvas-wrap{flex:1;position:relative;min-height:14rem;background-color:var(--va-stage-bg);background-image:radial-gradient(var(--va-canvas-dot) 1px, transparent 1px);background-size:20px 20px}@media(max-width: 767px){.va-workbench{width:100%;margin-top:1rem}.va-workbench__mobile-toggle{display:block}.va-workbench__sidebar{gap:0;max-height:0;padding:0 1rem;border-bottom:0;overflow:hidden;transition:max-height .24s ease}.va-workbench__sidebar--open{gap:.85rem;max-height:42rem;padding:1rem;border-bottom:1px solid var(--line);overflow-y:auto}.va-workbench__stage{min-height:14rem}.va-workbench__message-head{flex-wrap:wrap;row-gap:.2rem}.va-workbench__message{font-size:.88rem}.va-workbench__canvas-wrap{min-height:12rem}}.va-workbench__canvas{position:absolute;inset:0;width:100%;height:100%;display:block}.va-static{font-family:var(--mono);font-size:1.25rem;line-height:1.35;letter-spacing:.08em;margin:1rem 0;padding:1rem 1.25rem;color:var(--ink);background:color-mix(in srgb, var(--paper) 50%, var(--card-bg));border:1px solid var(--line);border-radius:.5rem;overflow-x:auto}.va-static__carry,.va-static__borrow{font-size:.85em;vertical-align:super}.book-prose .written-terms-table td:first-child{font-weight:600;white-space:nowrap}