:root{
  --bg:#0b0b0f;--bg2:#14141a;--bg3:#1c1c24;--fg:#e8e8ef;--mut:#8d8d9a;--line:#2a2a34;--acc:#2dd4bf;--acc2:#0f766e;--warn:#f59e0b;--err:#ef4444;
  --user:#1e2a3a;--radius:12px;--sw:280px;
}
*{box-sizing:border-box}html,body{height:100%}[hidden]{display:none !important}
body{margin:0;background:var(--bg);color:var(--fg);font:15px/1.5 -apple-system,"Segoe UI",Roboto,Inter,system-ui,sans-serif;overflow:hidden}
button{font:inherit;cursor:pointer}input,textarea{font:inherit}
.mut{color:var(--mut);font-size:13px}.err{color:var(--err);font-size:13px;min-height:1em}
code,pre{font-family:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;font-size:13px}
pre{background:var(--bg3);border:1px solid var(--line);border-radius:8px;padding:10px;overflow:auto}
code:not(pre code){background:var(--bg3);padding:0 4px;border-radius:4px}

#login{height:100%;display:flex;align-items:center;justify-content:center;padding:20px}
.card{background:var(--bg2);border:1px solid var(--line);border-radius:var(--radius);padding:24px;width:min(360px,100%);display:flex;flex-direction:column;gap:10px}
.card h1{margin:0;font-size:16px;letter-spacing:.14em}
.card input{background:var(--bg);color:var(--fg);border:1px solid var(--line);border-radius:8px;padding:10px 12px}
.card button{background:var(--acc);color:#04302b;border:0;border-radius:8px;padding:10px;font-weight:600}

#app{display:flex;height:100%}
#side{width:var(--sw);background:var(--bg2);border-right:1px solid var(--line);display:flex;flex-direction:column;flex-shrink:0}
.side-head{display:flex;align-items:center;justify-content:space-between;padding:14px 14px 8px}
.logo{font-size:13px;letter-spacing:.16em;color:var(--acc);font-weight:600}
#companies{flex:1;overflow:auto;padding:0 8px 8px}
.co{margin-top:10px}
.co-head{display:flex;align-items:center;justify-content:space-between;padding:8px 8px 4px;color:var(--mut);font-size:12px;letter-spacing:.08em;text-transform:uppercase}
.co-head b{color:var(--fg);font-weight:600;letter-spacing:0;text-transform:none;font-size:14px}
.co-head .new{background:none;border:1px solid var(--line);color:var(--acc);border-radius:6px;padding:2px 8px;font-size:12px}
.th{display:flex;flex-direction:column;padding:8px 10px;border-radius:8px;cursor:pointer;gap:2px}
.th:hover{background:var(--bg3)}.th.active{background:var(--bg3);outline:1px solid var(--acc2)}
.th .t{font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.th .l{font-size:12px;color:var(--mut);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.side-foot{padding:10px 14px;border-top:1px solid var(--line)}

#main{flex:1;display:flex;flex-direction:column;min-width:0}
header{display:flex;align-items:center;gap:10px;padding:10px 12px;border-bottom:1px solid var(--line);background:var(--bg2)}
header .title{flex:1;min-width:0}header .title div{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
#coName{font-weight:600}
.icon{background:none;border:0;color:var(--fg);font-size:18px;padding:6px 8px;border-radius:8px}.icon:hover{background:var(--bg3)}
#openSide{display:none}

#messages{flex:1;overflow:auto;padding:16px 14px;display:flex;flex-direction:column;gap:12px;scroll-behavior:smooth}
.empty{margin:auto;color:var(--mut);text-align:center;max-width:360px}
.msg{max-width:min(760px,92%);padding:10px 14px;border-radius:var(--radius);word-wrap:break-word}
.msg.user{align-self:flex-end;background:var(--user);border:1px solid #2a3b4f}
.msg.assistant{align-self:flex-start;background:var(--bg2);border:1px solid var(--line)}
.msg.assistant.error{border-color:var(--err)}
.msg p{margin:.4em 0}.msg ul,.msg ol{margin:.4em 0;padding-left:1.3em}.msg h1,.msg h2,.msg h3{font-size:15px;margin:.6em 0 .3em}
.msg table{border-collapse:collapse;font-size:13px;margin:.4em 0;display:block;overflow:auto}.msg td,.msg th{border:1px solid var(--line);padding:3px 8px}
.msg .atts{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:6px}.chip{background:var(--bg3);border:1px solid var(--line);border-radius:999px;padding:2px 10px;font-size:12px}
.msg .time{font-size:11px;color:var(--mut);margin-top:4px;text-align:right}
.typing{align-self:flex-start;color:var(--mut);font-size:13px;padding:6px 14px}
.typing i{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--acc);margin-right:4px;animation:b 1s infinite}
.typing i:nth-child(2){animation-delay:.2s}.typing i:nth-child(3){animation-delay:.4s}@keyframes b{0%,80%,100%{opacity:.2}40%{opacity:1}}
.confirm{margin-top:8px;padding:10px;border:1px solid var(--warn);border-radius:8px;background:#1f1a0e;font-size:13px;white-space:pre-wrap}
.confirm .btns{display:flex;gap:8px;margin-top:8px}.confirm button{border:0;border-radius:6px;padding:6px 12px;font-weight:600}
.confirm .ok{background:var(--acc);color:#04302b}.confirm .no{background:var(--bg3);color:var(--fg)}

#pendingFiles{display:flex;flex-wrap:wrap;gap:6px;padding:0 14px}
#pendingFiles .chip{display:flex;align-items:center;gap:6px}#pendingFiles .chip button{background:none;border:0;color:var(--mut);padding:0}
#composer{display:flex;align-items:flex-end;gap:6px;padding:10px 12px calc(10px + env(safe-area-inset-bottom));border-top:1px solid var(--line);background:var(--bg2)}
#input{flex:1;resize:none;max-height:160px;background:var(--bg);color:var(--fg);border:1px solid var(--line);border-radius:10px;padding:10px 12px;line-height:1.4}
.attach{cursor:pointer}.send{color:var(--acc)}.send:disabled{color:var(--mut)}

@media (max-width:760px){
  #side{position:fixed;left:0;top:0;bottom:0;z-index:20;transform:translateX(-100%);transition:transform .2s}
  #side.open{transform:none}#backdrop{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:10}
  #openSide{display:inline-block}#closeSide{display:inline-block}
  .msg{max-width:96%}
}
@media (min-width:761px){#closeSide{display:none}}