:root{color-scheme:dark;--bg:#08090b;--panel:#101115;--surface:#18191f;--border:#2b2c35;--text:#f2f0f6;--muted:#aaa9b7;--accent:#d2bcff;--accent-ink:#231935}*{box-sizing:border-box}body,html{margin:0;height:100%;background:var(--bg);color:var(--text)}body{font:15px/1.5 -apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}a,button,input,textarea{outline-offset:3px}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--accent)}.app{height:100dvh;display:flex;flex-direction:column;overflow:hidden}.demo-banner{height:34px;flex:none;background:#211a2b;color:#decff5;border-bottom:1px solid #3b2e4d;padding:8px 20px;font-size:11px;letter-spacing:.04em}.shell{display:flex;min-height:0;flex:1 1}.rail{width:92px;flex:none;background:#0d0e11;border-right:1px solid var(--border);display:flex;flex-direction:column;align-items:center;gap:10px;padding:27px 10px 20px}.brand{font:28px Georgia,serif;letter-spacing:-2px;margin-bottom:26px}.brand span{color:var(--accent);font-style:italic}.nav{display:flex;flex-direction:column;align-items:center;justify-content:center;width:70px;min-height:66px;border-radius:17px;color:var(--muted);font-size:21px}.nav small{font:11px sans-serif}.nav.active{color:var(--accent);background:#24202d}.nav.disabled{opacity:.55}.nav.bottom{margin-top:auto}.sidebar{width:324px;flex:none;display:flex;flex-direction:column;min-width:0;background:#0c0d10;border-right:1px solid var(--border)}.sidebar-top{padding:28px 22px 18px}.eyebrow{font-size:11px;letter-spacing:.14em;color:var(--muted);font-weight:600}.sidebar h1{font:36px Georgia,serif;letter-spacing:-1px;margin:9px 0 22px}.search{display:flex;align-items:center;gap:10px;padding:11px 13px;border:1px solid var(--border);border-radius:14px;background:linear-gradient(110deg,#191a20,#111217);color:var(--muted)}.search input{min-width:0;width:100%;border:0;background:none;color:var(--text);font-size:14px}.chips{display:flex;gap:7px;margin-top:16px}.chip{border:1px solid var(--border);border-radius:99px;padding:8px 11px;font-size:11px;color:var(--muted)}.chip.active{background:#2d2539;border-color:#a28ac1;color:#ebddff}.rooms{overflow:auto;flex:1 1;padding:0 10px}.room{display:flex;align-items:center;gap:12px;min-height:83px;padding:14px 12px;border-radius:15px}.room+.room{border-top:1px solid #1e2025}.room.selected,.room:hover{background:#1c1923}.room-copy{min-width:0;flex:1 1;display:flex;flex-direction:column}.room-copy strong{font-size:14px}.room-copy small,.sub{color:var(--muted);font-size:12px}.arrow{color:var(--muted)}.avatar{position:relative;width:44px;height:44px;flex:none;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;background:linear-gradient(145deg,#e9dfff,#bca2ec);color:#2d253d;border:1px solid #ffffff42;font:21px Georgia,serif}.avatar.human{border-radius:15px;background:linear-gradient(145deg,#d7eaff,#91b6ef)}.avatar small{position:absolute;bottom:-3px;right:-4px;color:var(--accent);background:#16131c;border:1px solid #6e5b8a;border-radius:5px;padding:2px;font:9px sans-serif}.sidebar-foot{padding:17px 23px;border-top:1px solid var(--border);font-size:11px;color:var(--muted)}.chat{min-width:0;flex:1 1;display:flex;flex-direction:column;background:radial-gradient(ellipse at 100% 0,#17121d55,transparent 45%)}.chat-head{height:88px;flex:none;padding:17px 28px;display:flex;align-items:center;gap:13px;border-bottom:1px solid var(--border)}.chat-head strong{font-size:16px}.chat-head .badge{margin-left:auto}.back{display:none}.badge{border:1px solid #514160;border-radius:99px;background:#251f30;color:var(--accent);padding:4px 9px;font-size:11px;white-space:nowrap}.context-banner{margin:18px 27px 0;padding:11px 14px;border:1px solid #37303f;border-radius:13px;background:linear-gradient(100deg,#211a2b8f,#101116);font-size:12px}.context-banner span{float:right;color:var(--muted)}.messages{min-height:0;flex:1 1;overflow:auto;padding:22px 28px 8px;overscroll-behavior:contain}.date{text-align:center;color:var(--muted);font-size:11px;letter-spacing:.04em;margin:0 0 26px}.message{display:flex;gap:10px;margin-bottom:22px;align-items:flex-start}.message>.avatar{width:32px;height:32px;font-size:16px;margin-top:22px}.msg-content{max-width:min(82%,640px);min-width:0}.msg-meta{font-size:11px;display:flex;gap:8px;margin-bottom:7px}.msg-meta time{color:var(--muted)}.bubble{padding:14px 17px;border:1px solid #34343e;border-radius:4px 17px 17px 17px;background:linear-gradient(120deg,#22232a,#191a20);font-size:15px;line-height:1.65;overflow-wrap:anywhere}.message.mine{justify-content:flex-end}.mine .bubble{background:#282130;border-color:#4d3e5f;border-radius:17px 4px 17px 17px}.composer-wrap{flex:none;padding:13px 26px max(21px,env(safe-area-inset-bottom));border-top:1px solid #25222c;background:#0c0d10}.composer-hint,.composer-note{font-size:11px;color:var(--muted)}.composer-hint{margin-bottom:10px}.composer-note{margin:8px 0 0}.composer{display:flex;align-items:flex-end;gap:9px}.composer textarea{resize:vertical;max-height:130px;min-height:47px;flex:1 1;min-width:0;background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:22px;padding:12px 16px;font-size:16px}.composer button{width:46px;height:46px;border:0;border-radius:50%;background:var(--accent);color:var(--accent-ink);font-size:22px;opacity:.5}.context-side{width:268px;flex:none;border-left:1px solid var(--border);background:#0d0e11;padding:29px 22px;overflow:auto}.context-card{border:1px solid var(--border);border-radius:17px;padding:17px;background:linear-gradient(140deg,#241c2d,#121317);margin:16px 0 29px}.context-card h2{font:23px Georgia,serif;margin:0 0 8px}.context-card p{color:var(--muted);font-size:12px;margin:0}.member{display:flex;align-items:center;gap:10px;margin:15px 0;font-size:12px}.member .avatar{width:31px;height:31px;font-size:15px}.member small{display:block;color:var(--muted);font-size:11px}.empty{margin:auto;text-align:center;color:var(--muted);padding:40px 20px}.empty h2{font:25px Georgia,serif;color:var(--text);margin:0 0 10px}.empty p{font-size:13px}.empty a{color:var(--accent)}.mobile-tabs{display:none}@media(max-width:1199px){.context-side{display:none}}@media(max-width:759px){.app{height:100dvh}.rail{display:none}.sidebar{width:100%;border:0}.sidebar-top{padding:20px}.sidebar h1{font-size:34px}.chat{display:none}.mobile-tabs{display:flex;height:calc(74px + env(safe-area-inset-bottom));flex:none;justify-content:space-around;align-items:center;padding-bottom:env(safe-area-inset-bottom);border-top:1px solid var(--border);background:#0d0e11;font-size:11px;color:var(--muted)}.mobile-tabs>*{min-width:44px;min-height:44px;display:grid;place-items:center}.mobile-tabs a{color:var(--accent)}.room-open .mobile-tabs,.room-open .sidebar{display:none}.room-open .chat{display:flex}.chat-head{height:70px;padding:10px 16px}.back{display:grid;place-items:center;width:44px;height:44px;font-size:34px}.chat-head .badge{display:none}.messages{padding:20px 16px 8px}.msg-content{max-width:86%}.context-banner{margin:10px 16px 0}.context-banner span{display:none}.composer-wrap{padding:10px 12px max(12px,env(safe-area-inset-bottom))}.composer-note{display:none}}@media(min-width:760px) and (max-width:1199px){.rail{width:76px}.sidebar{width:300px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation-duration:.01ms!important;transition-duration:.01ms!important}}.composer button:not(:disabled){opacity:1;cursor:pointer}.composer-note[role=status]{display:block;min-height:17px}.empty button{padding:12px 18px;border:1px solid var(--border);border-radius:12px;cursor:pointer}.composer-hint select,.empty button{background:var(--surface);color:var(--text)}.composer-hint select{margin-left:8px;max-width:220px;min-height:44px;border:1px solid var(--border);border-radius:10px;padding:8px}