:root{
  --bg:#08090A;
  --bg-1:#0B0C0E;
  --bg-2:#101113;
  --bg-3:#15171A;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.15);
  --text:#EAE8E4;
  --muted:#8C8882;
  --dim:#5C5955;
  --ember:#FF5A2B;
  --ember-2:#FF8A5C;
  --ok:#5FD08A;
  --warn:#E8B44A;
  --red:#E4645C;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,"SF Mono","JetBrains Mono","Cascadia Mono",Menlo,Consolas,monospace;
  --r:10px;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  background:var(--bg);color:var(--text);font-family:var(--sans);font-size:14px;line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow:hidden;
}
a{color:inherit;text-decoration:none}
button{font-family:inherit;color:inherit;background:none;border:0;cursor:pointer}
kbd{
  font-family:var(--mono);font-size:10px;color:var(--dim);border:1px solid var(--line);
  border-radius:4px;padding:1px 5px;background:rgba(255,255,255,.03);
}
::selection{background:rgba(255,90,43,.3);color:#fff}
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-thumb{background:#25272B;border-radius:9px;border:2px solid var(--bg)}
::-webkit-scrollbar-track{background:transparent}

.shell{display:grid;grid-template-columns:262px minmax(0,1fr) 430px;height:100vh;height:100dvh}

/* rail */
.rail{
  border-right:1px solid var(--line);background:var(--bg-1);display:flex;flex-direction:column;
  min-height:0;overflow:hidden;
}
.rail-head{display:flex;align-items:center;justify-content:space-between;padding:14px 14px 12px}
.brand{display:inline-flex;align-items:center;gap:9px}
.mark{display:grid;place-items:center;width:22px;height:22px;color:var(--ember)}
.mark svg{width:100%;height:100%}
.wordmark{font-weight:600;letter-spacing:-.01em}
.tag{
  font-family:var(--mono);font-size:9px;letter-spacing:.08em;text-transform:uppercase;color:var(--ember);
  border:1px solid rgba(255,90,43,.3);border-radius:999px;padding:1px 6px;background:rgba(255,90,43,.07);
}
.icon-btn{
  display:grid;place-items:center;width:28px;height:28px;border-radius:7px;color:var(--muted);
  border:1px solid transparent;transition:.18s;
}
.icon-btn svg{width:16px;height:16px}
.icon-btn:hover{background:rgba(255,255,255,.05);color:var(--text);border-color:var(--line)}
.only-mobile{display:none}

.new-chat{
  display:flex;align-items:center;justify-content:space-between;margin:0 12px 14px;
  padding:9px 11px;border:1px solid var(--line-2);border-radius:8px;font-size:13px;
  background:rgba(255,255,255,.02);transition:.18s;
}
.new-chat:hover{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.28)}

.field{display:block;padding:0 12px 14px}
.field-label{
  display:block;font-family:var(--mono);font-size:9.5px;letter-spacing:.13em;text-transform:uppercase;
  color:var(--dim);margin-bottom:6px;
}
.field select{
  width:100%;appearance:none;background:var(--bg-2);color:var(--text);border:1px solid var(--line);
  border-radius:7px;padding:8px 26px 8px 10px;font-size:12.5px;font-family:var(--mono);cursor:pointer;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='6'><path d='M1 1l4 4 4-4' fill='none' stroke='%238C8882' stroke-width='1.4'/></svg>");
  background-repeat:no-repeat;background-position:right 10px center;
}
.field select:focus{outline:none;border-color:rgba(255,90,43,.45)}

.rail-section{padding:0 12px 14px;min-height:0;display:flex;flex-direction:column}
.rail-section.sessions{flex:1;overflow:hidden}
.rail-section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:7px}
.count{font-family:var(--mono);font-size:9.5px;color:var(--dim)}

.tree{list-style:none;overflow-y:auto;min-height:0}
.tree li{display:flex;align-items:center;gap:7px;padding:5px 7px;border-radius:6px;font-family:var(--mono);font-size:11.5px;color:var(--muted);cursor:pointer;transition:.15s}
.tree li:hover{background:rgba(255,255,255,.05);color:var(--text)}
.tree li.active{background:rgba(255,90,43,.1);color:var(--ember-2)}
.tree .ftype{font-size:9px;color:var(--dim);border:1px solid var(--line);border-radius:3px;padding:0 3px;flex:none}
.tree .fname{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tree .empty-row{color:var(--dim);font-size:11px;padding:6px 7px;cursor:default}
.tree .empty-row:hover{background:none;color:var(--dim)}

.session-list{list-style:none;overflow-y:auto;min-height:0}
.session-list li{
  display:flex;justify-content:space-between;gap:8px;padding:7px 8px;border-radius:6px;
  font-size:12px;color:var(--muted);cursor:pointer;
}
.session-list li:hover{background:rgba(255,255,255,.05);color:var(--text)}
.session-list li.active{background:rgba(255,255,255,.06);color:var(--text)}
.session-list .s-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.session-list .s-time{font-family:var(--mono);font-size:9.5px;color:var(--dim);flex:none}

.rail-foot{border-top:1px solid var(--line);padding:11px 12px 12px}
.perm-row{margin-bottom:10px}
.switch{display:flex;align-items:center;gap:8px;cursor:pointer;font-size:11.5px;color:var(--muted)}
.switch input{position:absolute;opacity:0;pointer-events:none}
.track{width:28px;height:16px;border-radius:99px;background:#25272B;position:relative;transition:.2s;flex:none}
.thumb{position:absolute;top:2px;left:2px;width:12px;height:12px;border-radius:50%;background:#7A7772;transition:.2s}
.switch input:checked + .track{background:rgba(255,90,43,.5)}
.switch input:checked + .track .thumb{transform:translateX(12px);background:var(--ember)}
.switch-label{user-select:none}
.rail-links{display:flex;justify-content:space-between;font-family:var(--mono);font-size:10px;color:var(--dim);letter-spacing:.03em}
.rail-links a:hover,.linkish:hover{color:var(--ember)}

/* chat */
.chat{display:flex;flex-direction:column;min-width:0;min-height:0;background:var(--bg)}
.chat-head{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:13px 22px;border-bottom:1px solid var(--line);
}
.chat-title h1{font-size:14px;font-weight:600;letter-spacing:-.01em}
.chat-title p{font-family:var(--mono);font-size:10.5px;color:var(--dim);margin-top:2px}
.chat-actions{display:flex;align-items:center;gap:8px}
.chip{
  font-family:var(--mono);font-size:10.5px;color:var(--muted);border:1px solid var(--line);
  border-radius:999px;padding:3px 9px;background:rgba(255,255,255,.02);
}

.thread{flex:1;overflow-y:auto;padding:26px 22px 8px;scroll-behavior:smooth}
.thread-inner{max-width:760px;margin:0 auto}

.msg{margin-bottom:22px;display:flex;gap:12px}
.msg .who{
  flex:none;width:22px;height:22px;border-radius:5px;display:grid;place-items:center;
  font-family:var(--mono);font-size:9.5px;margin-top:2px;
}
.msg.user .who{background:rgba(255,255,255,.07);color:var(--muted)}
.msg.agent .who{background:rgba(255,90,43,.14);color:var(--ember);border:1px solid rgba(255,90,43,.25)}
.msg .body{min-width:0;flex:1}
.msg .name{font-family:var(--mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--dim);margin-bottom:6px}
.prose{font-size:14px;line-height:1.68;color:#D6D2CC;overflow-wrap:anywhere}
.prose p{margin:0 0 10px}
.prose p:last-child{margin-bottom:0}
.prose code{font-family:var(--mono);font-size:12px;background:rgba(255,255,255,.06);padding:1px 5px;border-radius:4px;color:#E8C4A8}
.prose pre{background:#0A0B0D;border:1px solid var(--line);border-radius:8px;padding:12px 13px;overflow-x:auto;margin:10px 0}
.prose pre code{background:none;padding:0;font-size:12px;color:#C9C5BF;line-height:1.7}
.prose ul,.prose ol{margin:0 0 10px 18px}
.prose li{margin-bottom:4px}
.prose h1,.prose h2,.prose h3{font-size:14.5px;font-weight:600;margin:14px 0 6px;letter-spacing:-.01em}
.prose strong{color:#fff;font-weight:600}
.prose a{color:var(--ember-2);text-decoration:underline;text-underline-offset:2px}

.thinking{
  display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:11px;
  color:var(--dim);letter-spacing:.04em;
}
.thinking .pulse{width:6px;height:6px;border-radius:50%;background:var(--ember);animation:blink 1.1s ease-in-out infinite}
.cursor{display:inline-block;width:6px;height:14px;background:var(--ember);vertical-align:-2px;animation:blink 1s steps(2) infinite;margin-left:2px}
@keyframes blink{50%{opacity:0}}

/* tool cards */
.tool{
  border:1px solid var(--line);border-radius:9px;margin:10px 0;overflow:hidden;background:var(--bg-1);
  font-family:var(--mono);
}
.tool-head{display:flex;align-items:center;gap:8px;padding:9px 11px;border-bottom:1px solid var(--line);font-size:11.5px}
.tool-name{color:var(--text)}
.tool-arg{color:var(--dim);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tool-state{margin-left:auto;font-size:9.5px;letter-spacing:.08em;text-transform:uppercase;flex:none}
.tool-state.pending{color:var(--warn)}
.tool-state.ok{color:var(--ok)}
.tool-state.denied{color:var(--red)}
.tool-body{padding:10px 11px;font-size:11.5px;color:#B6B2AC;max-height:220px;overflow:auto;white-space:pre-wrap;line-height:1.65}
.tool-actions{display:flex;gap:8px;padding:9px 11px;border-top:1px solid var(--line);background:rgba(255,255,255,.015)}
.tool-actions button{
  font-size:11px;padding:5px 12px;border-radius:6px;border:1px solid var(--line-2);transition:.16s;
}
.btn-allow{background:var(--ember);border-color:var(--ember);color:#140802;font-weight:600}
.btn-allow:hover{background:var(--ember-2)}
.btn-deny:hover{background:rgba(228,100,92,.12);border-color:rgba(228,100,92,.45);color:#F3A9A3}
.diff-add{color:#8FD8A6;background:rgba(95,208,138,.07);display:block}
.diff-del{color:#E89A94;background:rgba(228,100,92,.07);display:block;text-decoration:line-through;text-decoration-color:rgba(228,100,92,.5)}

/* composer */
.composer{padding:10px 22px 18px;border-top:1px solid var(--line);background:var(--bg)}
.composer-inner,.composer{max-width:none}
.composer textarea{
  width:100%;max-width:760px;display:block;margin:0 auto;resize:none;background:var(--bg-2);
  border:1px solid var(--line);border-radius:10px;color:var(--text);padding:12px 14px;
  font-family:var(--sans);font-size:14px;line-height:1.55;min-height:46px;max-height:200px;
}
.composer textarea:focus{outline:none;border-color:rgba(255,90,43,.4);background:#0E0F11}
.composer textarea::placeholder{color:var(--dim)}
.composer-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;max-width:760px;margin:8px auto 0}
.hints{display:flex;gap:14px;font-size:10.5px;color:var(--dim);font-family:var(--mono)}
.send{
  display:grid;place-items:center;width:34px;height:34px;border-radius:9px;background:var(--ember);
  color:#140802;transition:.18s;
}
.send svg{width:17px;height:17px}
.send:hover{background:var(--ember-2)}
.send:disabled{background:#25272B;color:#5C5955;cursor:not-allowed}

/* inspector */
.inspector{display:flex;flex-direction:column;border-left:1px solid var(--line);background:var(--bg-1);min-height:0}
.insp-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 14px;border-bottom:1px solid var(--line)}
.insp-file{display:flex;align-items:center;gap:7px;font-family:var(--mono);font-size:11px;color:var(--muted);min-width:0}
.insp-file span:last-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.dot-live{width:6px;height:6px;border-radius:50%;background:#333;flex:none}
.dot-live.on{background:var(--ok);box-shadow:0 0 0 3px rgba(95,208,138,.14)}
.insp-actions{display:flex;align-items:center;gap:6px;flex:none}
.mini{
  font-family:var(--mono);font-size:10px;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);
  border:1px solid var(--line);border-radius:5px;padding:4px 8px;transition:.16s;
}
.mini:hover{color:var(--text);border-color:var(--line-2)}
.mini.on{color:var(--ember);border-color:rgba(255,90,43,.4)}
.insp-body{flex:1;min-height:0;position:relative;overflow:hidden}
.file-view{
  margin:0;height:100%;overflow:auto;padding:14px 16px;font-family:var(--mono);font-size:11.8px;
  line-height:1.75;color:#C4C0BA;white-space:pre-wrap;word-break:break-word;
}
.file-view .empty{color:var(--dim);font-size:11.5px;line-height:1.7}
.preview{width:100%;height:100%;border:0;background:#fff}
.insp-foot{
  display:flex;justify-content:space-between;padding:8px 14px;border-top:1px solid var(--line);
  font-family:var(--mono);font-size:9.5px;color:var(--dim);letter-spacing:.05em;
}
.insp-foot .ok{color:var(--ok)}

/* toast */
.toast{
  position:fixed;left:50%;bottom:26px;transform:translate(-50%,20px);opacity:0;pointer-events:none;
  background:var(--bg-3);border:1px solid var(--line-2);border-radius:8px;padding:9px 14px;
  font-size:12.5px;color:var(--text);transition:.22s;z-index:80;box-shadow:0 18px 40px -20px #000;
}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* responsive */
@media (max-width:1180px){
  .shell{grid-template-columns:238px minmax(0,1fr)}
  .inspector{
    position:fixed;inset:0 0 0 auto;width:min(460px,92vw);z-index:70;
    transform:translateX(101%);transition:transform .26s cubic-bezier(.2,.7,.2,1);
    box-shadow:-30px 0 60px -30px #000;
  }
  .inspector.open{transform:none}
  .only-mobile{display:grid}
}
@media (max-width:820px){
  .shell{grid-template-columns:1fr}
  .rail{
    position:fixed;inset:0 auto 0 0;width:264px;z-index:75;transform:translateX(-101%);
    transition:transform .26s cubic-bezier(.2,.7,.2,1);box-shadow:30px 0 60px -30px #000;
  }
  .rail.open{transform:none}
  .chat-head{padding:11px 14px}
  .thread{padding:18px 14px 6px}
  .composer{padding:8px 14px 14px}
  .hints span:nth-child(2){display:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}