:root{
  --bg:#0b0d12;--panel:#12151c;--panel2:#181c25;--line:#232834;--txt:#eceff4;--muted:#8d97a8;
  --yellow:#ffcc00;--ok:#4ade80;--warn:#fbbf24;--bad:#f87171;
  color-scheme:dark;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{background:var(--bg);color:var(--txt);font:15px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,sans-serif;display:flex;flex-direction:column;-webkit-font-smoothing:antialiased}
button,input,textarea,select{font:inherit;color:inherit}
button{background:var(--panel2);border:1px solid var(--line);border-radius:10px;padding:8px 14px;cursor:pointer;transition:border-color .15s,background .15s}
button:hover:not(:disabled){border-color:#3a4254}
button:disabled{opacity:.5;cursor:not-allowed}
button.primary,#send{background:var(--yellow);color:#111;border-color:transparent;font-weight:700}
button.primary:hover:not(:disabled),#send:hover{background:#ffd633}
textarea,input[type=number]{width:100%;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:11px 13px;outline:none;transition:border-color .15s}
textarea:focus,input[type=number]:focus{border-color:var(--yellow)}
textarea{resize:vertical}
input[type=range]{accent-color:var(--yellow)}
h1{margin:0}
h2{font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:0 0 10px}
.muted{color:var(--muted)}

/* header */
.top{display:flex;align-items:center;gap:18px;padding:10px 18px;border-bottom:1px solid var(--line);background:rgba(11,13,18,.9);backdrop-filter:blur(10px);flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.01em}
.brand img{border-radius:8px;display:block}
nav{display:flex;gap:2px;flex:1;overflow-x:auto;scrollbar-width:none}
nav button{border:0;background:transparent;color:var(--muted);padding:7px 13px;border-radius:9px;white-space:nowrap}
nav button:hover{color:var(--txt)}
nav button.on{background:var(--panel2);color:var(--txt)}
.status{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.status i{width:8px;height:8px;border-radius:50%;background:#4b5362}
.status.ok i{background:var(--ok);box-shadow:0 0 8px var(--ok)}
.status.work i{background:var(--yellow);box-shadow:0 0 8px var(--yellow)}
.status.err i{background:var(--bad)}

main{flex:1;min-height:0;position:relative}
.view{display:none;height:100%;overflow:auto}
.view.on{display:block}
.split{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(300px,1fr);height:100%}
.col{min-height:0;overflow:auto;padding:18px}
.chat{display:flex;flex-direction:column;border-right:1px solid var(--line)}
.side{display:flex;flex-direction:column;gap:14px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px}

/* chat */
.log{flex:1;overflow:auto;display:flex;flex-direction:column;gap:14px;padding:4px 2px 14px}
.empty{margin:auto;text-align:center;max-width:420px;padding:20px}
.empty img{border-radius:20px;margin-bottom:14px}
.empty h1{font-size:30px;letter-spacing:-.02em}
.empty p{color:var(--muted);margin:8px 0 18px}
.chips{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.chips button{border-radius:999px;font-size:13px;color:var(--muted)}
.chips button:hover{color:var(--txt);border-color:var(--yellow)}
.msg{max-width:88%;padding:11px 15px;border-radius:16px;white-space:pre-wrap;overflow-wrap:anywhere}
.msg.user{align-self:flex-end;background:var(--yellow);color:#111;border-bottom-right-radius:5px}
.msg.ai{align-self:flex-start;background:var(--panel);border:1px solid var(--line);border-bottom-left-radius:5px}
.msg.note{align-self:center;background:transparent;color:var(--muted);font-size:13px;border:1px dashed var(--line)}
.msg .who{display:block;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--yellow);margin-bottom:3px}
.msg .chip{display:block;margin-top:8px;font-size:12px;color:var(--muted)}
.tk{border-radius:3px}
.composer{display:flex;gap:8px;align-items:flex-end;padding-top:12px}
.composer textarea{flex:1;resize:none;max-height:140px}
.composer button{height:44px;padding:0 18px}

/* side */
.thoughts{background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:10px;min-height:84px;max-height:180px;overflow:auto;white-space:pre-wrap;margin:0;font:12.5px/1.5 ui-monospace,SFMono-Regular,Menlo,monospace;color:#b4bdcc}
.meters{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.meters div{background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:8px 4px;text-align:center}
.meters span{display:block;font-size:19px;font-weight:700;font-variant-numeric:tabular-nums}
.meters small{color:var(--muted);font-size:11px}
#spark{width:100%;margin-top:10px;display:block}

/* graph */
.graph{overflow:auto;background:
  radial-gradient(circle at 1px 1px,#222836 1px,transparent 0) 0 0/22px 22px,var(--bg);
  border:1px solid var(--line);border-radius:12px}
.graph.mini{height:176px}
.graph.full{margin:0 18px;height:calc(100% - 200px);min-height:300px}
.graph svg{display:block}
.graph text{fill:#cfd6e3;font:11px ui-monospace,Menlo,monospace;pointer-events:none}
.graph .alt text{fill:var(--muted)}
.graph .stem,.graph .chain{pointer-events:none}
.graph circle{cursor:pointer;transition:r .12s}
.graph .node{filter:drop-shadow(0 0 5px rgba(255,255,255,.18))}
.graph .empty-g{padding:26px;color:var(--muted);text-align:center}
.bar{display:flex;gap:16px;align-items:center;justify-content:space-between;padding:14px 18px;flex-wrap:wrap}
.bar p{margin:0;color:var(--muted);max-width:760px}
.detail{margin:12px 18px;padding:12px 14px;background:var(--panel);border:1px solid var(--line);border-radius:12px;min-height:64px;font-size:13px}

/* panels */
.panel{max-width:740px;margin:0 auto;padding:22px 18px}
.panel h2{margin-top:20px}
.panel h2:first-child{margin-top:0}
.row{display:flex;gap:18px;align-items:center;flex-wrap:wrap;margin:14px 0}
.row label{display:flex;align-items:center;gap:8px}
.chk{cursor:pointer}
.locked{display:flex;gap:10px;background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--yellow);border-radius:12px;padding:12px 14px}
.locked p{margin:0}
.models{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:12px 0}
.mcard{position:relative;display:flex;flex-direction:column;gap:2px;padding:14px;background:var(--panel);border:1px solid var(--line);border-radius:14px;cursor:pointer;transition:border-color .15s}
.mcard:hover{border-color:#3a4254}
.mcard input{position:absolute;opacity:0}
.mcard em{font-style:normal;font-size:24px;font-weight:800;letter-spacing:-.02em}
.mcard small{color:var(--muted)}
.mcard:has(input:checked){border-color:var(--yellow);background:#1b1a10}
.progress{height:8px;background:var(--panel2);border-radius:8px;overflow:hidden;margin:14px 0}
.progress div{height:100%;width:0;background:var(--yellow);transition:width .2s}

/* footer on every screen */
.by{display:flex;align-items:center;justify-content:center;gap:7px;padding:7px 12px;font-size:12px;color:var(--muted);border-top:1px solid var(--line);background:var(--bg)}
.by img{border-radius:4px;display:block}

@media (max-width:820px){
  .top{gap:10px;padding:8px 12px}
  .split{grid-template-columns:1fr;grid-template-rows:minmax(0,1fr) auto}
  .chat{border-right:0;border-bottom:1px solid var(--line);padding:12px}
  .side{max-height:38vh;padding:12px}
  .models{grid-template-columns:1fr}
  .msg{max-width:94%}
}