:root{--bg:#fff;--fg:#212529;--muted:#6c757d;--border:#d0d7de;--panel:#f6f8fa;--card:#fff;--accent:#448;--link:#0d6efd;--error:#b42318;--ok:#1a7f37;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}body.elk-dark-mode{--bg:#333;--fg:#ddd;--muted:#a8a8a8;--border:#555;--panel:#2a2a2a;--card:#3a3a3a;--accent:#9a9ae6;--link:#60adff;--error:#ff8f80;--ok:#6fdd8b;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}html,body{height:100%;margin:0}body{background:var(--bg);color:var(--fg);flex-direction:column;font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif;display:flex}a{color:var(--link)}a:hover{color:#0a58ca}body.elk-dark-mode a:hover{color:var(--link)}code{color:#d63384;word-wrap:break-word;font-family:SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-size:.875em}body.elk-dark-mode code{color:#f58fc0}.spacer{flex:1}.muted{color:var(--muted)}select,button{font:inherit;color:var(--fg);background:var(--bg);border:1px solid var(--border);border-radius:4px;padding:3px 8px}button{cursor:pointer}button:hover,select:hover{border-color:var(--accent)}button[aria-pressed=true]{background:var(--accent);color:var(--bg)}.navbar{background:var(--panel);border-bottom:1px solid var(--border);grid-template-columns:1fr auto 1fr;align-items:center;gap:12px;min-height:56px;padding:8px 16px;display:grid}.navbar-brand{color:var(--link);white-space:nowrap;justify-self:start;align-items:center;gap:8px;padding:.3125rem 0;font-size:1.25rem;text-decoration:none;display:inline-flex}.navbar-brand:hover{color:#0a58ca}.navbar-title h1{white-space:nowrap;margin:0;font-size:1.25rem;font-weight:500}.navbar-right{justify-content:flex-end;align-items:center;gap:12px;display:flex}.logo-small{width:30px;height:30px}.elk-dark-mode .logo-small,.elk-dark-mode .logo-large{filter:invert(.85)hue-rotate(180deg)}.engine-badge{border:1px solid var(--border);background:var(--bg);color:var(--muted);white-space:nowrap;cursor:help;border-radius:999px;padding:2px 10px;font-size:14px;display:inline-block}.statusbar{background:var(--panel);border-top:1px solid var(--border);flex-wrap:nowrap;align-items:center;gap:12px;margin-top:24px;padding:16px;display:flex}#status{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;overflow:hidden}.footer-engine{white-space:nowrap}.statusbar button{color:var(--link);background:0 0;border:none;padding:0;text-decoration:underline}.statusbar button:hover{color:var(--accent)}.statusbar button[aria-pressed=true]{color:var(--link);background:0 0}#status.error{color:var(--error)}#status.ok{color:var(--ok)}.panes{flex:1;min-height:0;padding-top:24px;display:flex}.pane{flex:50%;min-width:0;position:relative}.editor-pane{border-right:1px solid var(--border)}#monaco-editor,.sprotty{position:absolute;inset:4px}.sprotty svg{width:100%;height:100%}.diagram-tools{z-index:2;opacity:0;flex-wrap:wrap;justify-content:flex-end;gap:4px;max-width:calc(100% - 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