:root{--canvas:#fafbfc;--line:#dbe2ea;--line-strong:#b8c2cf;--ink:#1f3a5f;--text:#3c4a5d;--muted:#8ea2b8;--panel:#fff;--panel-tint:#f2f5f8;--on-ink:#fff;--dur-fast:.15s;--dur-med:.45s;--dur-slow:.6s}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--canvas);color:var(--text);font-family:Segoe UI,system-ui,-apple-system,sans-serif}.chat-panel{flex-direction:column;gap:12px;width:min(760px,92vw);height:min(64vh,600px);display:flex}.chat-messages{flex-direction:column;flex:1;gap:10px;min-height:0;margin:0;padding:0;list-style:none;display:flex;overflow-y:auto}.chat-msg{border-radius:12px;max-width:85%;padding:10px 14px;font-size:15px;line-height:1.5}.chat-msg--assistant{background:var(--panel-tint);color:var(--text);align-self:flex-start}.chat-msg--user{background:var(--ink);color:var(--on-ink);align-self:flex-end}.chat-form{gap:8px;display:flex}.chat-form input{border:1px solid var(--line-strong);background:var(--panel);color:var(--text);border-radius:999px;flex:1;padding:12px 18px;font-size:15px}.chat-form input:focus{outline:2px solid var(--ink);outline-offset:1px}.chat-form button{background:var(--ink);width:38px;height:38px;color:var(--on-ink);cursor:pointer;border:none;border-radius:50%}.chat-form button:disabled{opacity:.5;cursor:default}.tool-panel{background:var(--panel);border-left:1px solid var(--line);width:40%;padding:20px 24px;position:absolute;top:0;bottom:0;overflow-y:auto;box-shadow:0 0 32px #1f3a5f14}.tool-panel--right{right:0}.tool-panel--left{border-left:none;border-right:1px solid var(--line);left:0}.tool-panel__header{align-items:center;gap:10px;margin-bottom:16px;display:flex}.tool-panel__header h3{color:var(--ink);flex:1;margin:0;font-size:17px}.tool-panel__header button{color:var(--muted);cursor:pointer;background:0 0;border:none;font-size:22px}.tool-panel__dot{background:var(--muted);border-radius:50%;width:9px;height:9px}.tool-demo{flex-direction:column;gap:14px;font-size:14px;display:flex}.tool-demo input{border:1px solid var(--line-strong);background:var(--panel);color:var(--text);border-radius:8px;padding:8px 12px;font-size:14px}.tool-demo__result{background:var(--panel-tint);border-radius:10px;padding:12px 14px}.tool-demo__result h4{color:var(--ink);margin:0 0 6px}.tool-demo__meta{color:var(--muted);font-size:12.5px}.tool-demo__note{color:var(--muted);font-size:12.5px;font-style:italic}.tool-demo__list{flex-direction:column;gap:10px;margin:0;padding:0;list-style:none;display:flex}@media (width<=1000px){.tool-panel{width:100%}}.settings-backdrop{z-index:20;background:#1f3a5f2e;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.settings-modal{background:var(--panel);border-radius:14px;flex-direction:column;gap:12px;width:min(380px,90vw);padding:22px 26px;display:flex}.settings-field{color:var(--text);flex-direction:column;gap:4px;font-size:13px;display:flex}.settings-field input{border:1px solid var(--line);background:var(--panel-tint);color:var(--muted);border-radius:8px;padding:8px 12px}.chat-msg__text{white-space:pre-wrap}.chat-msg__tool{color:var(--muted);margin-top:6px;font-size:12.5px;font-style:italic;display:block}.chat-msg__citations{flex-wrap:wrap;gap:6px;margin-top:8px;display:flex}.chat-chip{border:1px solid var(--line-strong);color:var(--ink);background:var(--panel);border-radius:999px;padding:2px 10px;font-size:11.5px}.chat-msg--error{border:1px solid var(--line-strong);background:var(--panel);color:var(--muted);font-style:italic}.tool-panel__footer{border-top:1px solid var(--line);margin-top:14px;padding-top:12px}.tool-panel__footer button{border:1px solid var(--line-strong);background:var(--panel-tint);width:100%;color:var(--ink);cursor:pointer;border-radius:8px;padding:8px 12px;font-size:13px}.tool-panel__footer button:hover{background:var(--panel)}.scene-root{height:100%;position:relative;overflow:hidden}.scene-svg{width:100%;height:100%;display:block}.scene-svg text{-webkit-user-select:none;user-select:none}.chat-overlay{justify-content:center;display:flex;position:absolute;top:54%;left:50%;transform:translate(-50%,-50%)}.persona-wrap{opacity:0;transition:opacity .25s}.brain-center:hover .persona-wrap,.persona-wrap:focus-within,.brain-center--chat .persona-wrap{opacity:1}@media (prefers-reduced-motion:reduce){.persona-wrap{transition:none}}.scene-wordmark{color:var(--muted);letter-spacing:.14em;-webkit-user-select:none;user-select:none;pointer-events:none;font-size:13px;position:absolute;bottom:16px;left:50%;transform:translate(-50%)}.settings-gear{color:var(--muted);cursor:pointer;background:0 0;border:none;font-size:20px;position:absolute;top:14px;right:16px}.settings-gear:hover{color:var(--ink)}.scene-svg [role=button]:focus-visible{outline:2px solid var(--ink);outline-offset:3px}.scene-svg [role=button]:focus:not(:focus-visible){outline:none}