.stage{position:fixed;inset:0;overflow:hidden;background:var(--bg)}.canvas-wrap{position:absolute;inset:0;overflow:hidden;z-index:1}.diagram-canvas{position:absolute;inset:84px 0 0;display:flex;align-items:center;justify-content:center}@media(max-width:760px){.diagram-canvas{inset:72px 0 0}}.boot-hint{color:var(--muted);font-size:var(--t-meta)}#diagram-canvas svg{max-width:100%;max-height:100%;width:auto;height:auto}.stage.frozen .canvas-wrap,.stage.frozen .grid{filter:saturate(.15) brightness(.82);transition:filter var(--d-state) var(--ease-out)}.render-line{position:absolute;top:0;left:0;right:0;height:1px;background:var(--hair);overflow:hidden;pointer-events:none;z-index:5}.float-header{top:16px;left:50%;transform:translate(-50%);max-width:calc(100vw - 32px);overflow:visible;flex-wrap:wrap;row-gap:var(--s-1)}.float-header:before{content:"";position:absolute;inset:0;pointer-events:none;border-radius:inherit;background:radial-gradient(240px circle at var(--mx) var(--my),rgba(59,232,255,.06),transparent 60%)}.float-header>*{position:relative;z-index:1}.chrome-link{color:var(--muted);font-size:var(--t-h3);line-height:1;transition:color var(--d-hover) var(--ease-out)}.chrome-link:hover{color:var(--text)}.live-cluster{display:inline-flex;align-items:center;gap:var(--s-2);flex:0 0 auto}#live-label{color:var(--accent)}.float-header[data-state=connecting] #live-label{color:var(--muted)}.float-header[data-state=reconnecting] #live-label,.float-header[data-state=closed] #live-label{color:var(--warn)}.session-slug{font-size:14px;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:28ch;flex:0 1 auto}.viewer-cluster{display:inline-flex;align-items:center;gap:var(--s-2);flex:0 0 auto;color:var(--muted)}.eye-glyph{font-size:12px;opacity:.7}#viewer-count{font-size:var(--t-meta);color:var(--text)}.ticker{max-width:32vw;flex:0 0 auto}.controls{display:inline-flex;align-items:center;gap:var(--s-2);flex:0 0 auto}@media(max-width:1024px){.ticker{display:none}}@media(max-width:760px){.viewer-cluster{display:none}.session-slug{max-width:14ch}#btn-source{display:none}}@media(max-width:520px){.session-slug,#btn-share{display:none}}.error-banner{position:fixed;top:72px;left:50%;transform:translate(-50%);z-index:48;max-width:calc(100vw - 32px);padding:6px 14px;background:#ff5c6c1f;border:1px solid var(--error);border-radius:var(--r-md);color:var(--error);font-size:var(--t-meta)}.error-retry{margin-left:var(--s-2);opacity:.8}.source-rail{position:fixed;top:0;right:0;bottom:0;width:384px;max-width:40vw;z-index:52;background:#0f1116eb;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-left:1px solid var(--hair-2);overflow:auto}.source-rail-head{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;border-bottom:1px solid var(--hair)}.rail-close{background:transparent;border:none;color:var(--muted);font-size:18px;line-height:1;cursor:pointer}.rail-close:hover{color:var(--text)}.source-text{margin:0;padding:var(--s-3);font-size:var(--t-meta);color:var(--text);white-space:pre-wrap;word-break:break-word}.recenter-hint{position:fixed;left:16px;bottom:14px;z-index:15;font-size:var(--t-meta);color:var(--muted);opacity:1;transition:opacity .6s var(--ease-out);pointer-events:none}.recenter-hint.faded{opacity:0}.zoom-controls{position:fixed;right:16px;bottom:16px;z-index:20;display:flex;flex-direction:column;gap:1px;padding:4px;border-radius:var(--r-md);background:#0f1116b8;border:1px solid var(--hair);box-shadow:var(--shadow-float);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}.zoom-btn{width:34px;height:34px;display:flex;align-items:center;justify-content:center;font-size:18px;line-height:1;color:var(--text);background:transparent;border:0;border-radius:var(--r-sm);cursor:pointer;user-select:none;transition:background var(--d-hover) var(--ease-out),color var(--d-hover) var(--ease-out)}.zoom-btn:hover{background:var(--surface-2);color:var(--accent)}.zoom-btn:active{transform:translateY(.5px)}.zoom-btn-fit{font-size:12px;color:var(--muted)}#canvas-wrap:fullscreen{background:var(--bg)}