:root {
  --bg:#f6f6f2;
  --panel:#fbfbf8;
  --ink:#171717;
  --muted:#666;
  --line:#151515;
  --card:#fff;
  --hot:#111;
  --ok:#0b7f3a;
  --bad:#b32222;
  --warn:#9b6b00;
  --shade:rgba(0,0,0,.035);
  --soft-line:rgba(21,21,21,.14);
}
body.dark {
  --bg:#101010;
  --panel:#151515;
  --ink:#f2f2ec;
  --muted:#aaa;
  --line:#f2f2ec;
  --card:#181818;
  --hot:#fff;
  --ok:#4ade80;
  --bad:#ff6b6b;
  --warn:#ffd166;
  --shade:rgba(255,255,255,.055);
  --soft-line:rgba(242,242,236,.18);
}
* { box-sizing:border-box; }
[hidden] { display:none !important; }
body { margin:0; font-family:"Departure Mono","Pixel Operator","Courier New",monospace; color:var(--ink); background:var(--bg); letter-spacing:0; }
body::before { content:""; position:fixed; inset:0; pointer-events:none; background:linear-gradient(var(--shade) 1px, transparent 1px), linear-gradient(90deg, var(--shade) 1px, transparent 1px); background-size:18px 18px; }
main { height:100vh; padding:8px; }
.auth-screen { position:fixed; inset:0; display:grid; place-items:center; padding:18px; background:var(--bg); z-index:20; }
.auth-box { width:min(420px,100%); border:2px solid var(--line); background:var(--panel); }
.auth-box h1 { font-size:18px; }
.auth-box button.hot { width:100%; border-width:1px 0 0; }
.auth-status { min-height:38px; margin:0; padding:12px 14px; border-top:1px solid var(--line); color:var(--muted); font-size:12px; }
.shell { display:grid; grid-template-columns:clamp(230px,18vw,310px) minmax(0,1fr) clamp(270px,22vw,380px); height:calc(100vh - 16px); border:2px solid var(--line); background:var(--panel); }
.shell.nav-closed { grid-template-columns:48px minmax(0,1fr) clamp(270px,22vw,380px); }
.shell.right-closed { grid-template-columns:clamp(230px,18vw,310px) minmax(0,1fr) 48px; }
.shell.nav-closed.right-closed { grid-template-columns:48px minmax(0,1fr) 48px; }
aside, section { background:var(--panel); border:0; box-shadow:none; }
aside { display:flex; flex-direction:column; border-right:2px solid var(--line); overflow:hidden; }
.shell.nav-closed .nav-panel { padding:0; }
.shell.nav-closed .nav-panel > :not(.nav-toggle):not(h1) { display:none; }
.shell.nav-closed h1 { writing-mode:vertical-rl; font-size:13px; margin:12px auto; border:0; }
h1, h2 { margin:0; padding:12px 14px; border-bottom:2px solid var(--line); font-size:16px; line-height:1.1; letter-spacing:0; color:var(--ink); }
h2 { font-size:14px; }
.lead { color:var(--muted); font-size:13px; line-height:1.45; margin:0; padding:14px; border-bottom:1px solid var(--line); }
.status { display:flex; gap:8px; align-items:center; padding:10px 14px; border-bottom:1px solid var(--line); color:var(--muted); background:var(--card); font-size:12px; margin:0; }
.user-bar { display:grid; grid-template-columns:minmax(0,1fr) 94px; border-bottom:1px solid var(--line); background:var(--card); }
.user-bar span { min-width:0; padding:10px 14px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; color:var(--muted); font-size:12px; }
.dot { width:10px; height:10px; background:var(--bad); border:1px solid var(--line); }
.dot.on { background:var(--ok); }
label { display:block; color:var(--muted); font-size:11px; text-transform:uppercase; letter-spacing:.08em; margin:0; padding:10px 14px 6px; border-top:1px solid var(--line); }
input, textarea, select { width:100%; border:0; border-top:1px solid var(--line); border-bottom:1px solid var(--line); border-radius:0; padding:12px 14px; font:14px "Departure Mono","Courier New",monospace; background:var(--card); color:var(--ink); outline:none; }
input:focus, textarea:focus, select:focus { box-shadow:inset 0 0 0 2px var(--line); }
textarea { min-height:132px; resize:vertical; }
button { border:1px solid var(--line); border-radius:0; padding:10px 12px; margin:0; background:var(--panel); color:var(--ink); font:700 12px "Departure Mono","Courier New",monospace; cursor:pointer; text-transform:uppercase; }
button:hover { background:var(--ink); color:var(--bg); }
button:active { transform:translateY(1px); }
button.secondary { background:var(--panel); color:var(--ink); }
button.hot { background:var(--ink); color:var(--bg); width:120px; min-width:120px; }
pre { white-space:pre-wrap; word-break:break-word; background:var(--card); color:var(--ink); border:0; border-top:1px solid var(--line); padding:12px; min-height:130px; max-height:280px; overflow:auto; margin:0; }
.kv { display:grid; grid-template-columns:72px minmax(0,1fr); gap:8px; padding:10px 14px; border-bottom:1px solid var(--line); background:var(--card); }
.kv span, .run-mini span, .env-muted, .empty { color:var(--muted); }
.kv strong, .run-mini strong { min-width:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.section-toggle-row { display:grid; grid-template-columns:minmax(0,1fr) 94px; border-top:1px solid var(--line); border-bottom:1px solid var(--line); align-items:stretch; }
.section-toggle-row label { border:0; padding:10px 14px; align-self:center; }
.mini-toggle { border-width:0 0 0 1px; padding:8px 6px; font-size:10px; }
.run-mini { display:grid; border-bottom:1px solid var(--line); }
.run-mini div { display:grid; grid-template-columns:82px minmax(0,1fr); gap:8px; padding:9px 14px; border-bottom:1px solid var(--soft-line); background:var(--card); font-size:12px; }
.run-mini div:last-child { border-bottom:0; }
.strategy-records { max-height:230px; overflow:auto; border-bottom:1px solid var(--line); background:var(--card); }
.strategy-record { display:grid; grid-template-columns:minmax(0,1fr) 34px; border-bottom:1px solid var(--soft-line); }
.strategy-record:last-child { border-bottom:0; }
.strategy-record.active { background:var(--panel); }
.strategy-select { border:0; border-right:1px solid var(--soft-line); text-align:left; padding:9px 10px 9px 14px; background:transparent; text-transform:none; font-weight:400; }
.strategy-select:hover, .strategy-delete:hover { background:var(--ink); color:var(--bg); }
.strategy-select strong { display:block; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; font-size:12px; }
.strategy-select span { display:block; margin-top:4px; color:var(--muted); font-size:10px; }
.strategy-delete { border:0; padding:0; min-width:34px; background:transparent; }
.strategy-records .empty { margin:0; padding:12px 14px; font-size:12px; }
.spacer { flex:1; }
.build-version { color:var(--muted); font-size:11px; text-align:center; margin:0; padding:4px 14px; opacity:0.6; }
.panel { display:flex; flex-direction:column; gap:0; min-height:0; }
.chat { width:100%; margin:0; border-right:2px solid var(--line); }
.messages { display:grid; gap:12px; overflow:auto; scrollbar-width:none; align-content:start; flex:1; min-height:0; padding:18px; }
.messages::-webkit-scrollbar { display:none; }
.chat-chart-panel { border:0; border-top:2px solid var(--line); background:var(--card); min-height:0; padding:0; }
.chat-chart-panel[open] { min-height:246px; }
.chat-chart-panel summary.chart-toolbar { list-style:none; cursor:pointer; }
.chat-chart-panel summary.chart-toolbar::-webkit-details-marker { display:none; }
.chart-toolbar { display:flex; justify-content:space-between; gap:12px; align-items:center; min-height:36px; padding:8px 12px; border-bottom:1px solid var(--line); color:var(--muted); font-size:11px; overflow:hidden; }
.chart-toolbar::before { content:"+"; flex:0 0 auto; color:var(--hot); font-weight:700; }
.chat-chart-panel[open] .chart-toolbar::before { content:"-"; }
.chart-toolbar strong { color:var(--ink); text-transform:uppercase; white-space:nowrap; }
.chart-toolbar span { min-width:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; text-align:right; }
.chart-scroll { position:relative; overflow-x:auto; overflow-y:hidden; height:270px; background:var(--card); scrollbar-width:thin; }
.chart-scroll canvas { display:block; height:100%; background:var(--card); cursor:crosshair; }
.chart-tooltip { position:absolute; z-index:5; width:176px; padding:9px 10px; border:1px solid var(--line); background:var(--panel); color:var(--ink); box-shadow:3px 3px 0 var(--line); font-size:11px; line-height:1.45; pointer-events:none; }
.chart-tooltip div:empty { height:6px; }
.message { border:1px solid var(--line); border-radius:0; padding:12px 14px; background:var(--card); width:min(78%,780px); }
.message.user { justify-self:end; background:var(--panel); }
.message.assistant { justify-self:start; background:var(--card); }
.message.system { justify-self:center; width:min(88%,840px); background:var(--panel); border-style:dashed; }
.message b { display:block; margin-bottom:8px; font-size:11px; color:var(--muted); text-transform:uppercase; }
.message-body { line-height:1.55; overflow-wrap:anywhere; }
.message-body p { margin:0 0 10px; }
.message-body p:last-child { margin-bottom:0; }
.message-body h2,.message-body h3,.message-body h4 { margin:10px 0 8px; padding:0; border:0; font-size:14px; }
.message-body ul { margin:8px 0; padding-left:20px; }
.message-body li { margin:4px 0; }
.message-body code { padding:1px 4px; border:1px solid var(--soft-line); background:var(--panel); }
.message-body .md-code { margin:8px 0; padding:10px; max-height:220px; border:1px solid var(--line); background:var(--panel); overflow:auto; }
.message-body a { color:var(--ink); text-decoration:underline; }
.message-body table { width:100%; border-collapse:collapse; margin-top:8px; }
.message-body td, .message-body th { border:1px solid var(--line); padding:6px 8px; text-align:left; }
.message-backtest { margin-top:10px; border:1px solid var(--line); background:var(--panel); padding:0; }
.message-backtest summary { min-height:32px; padding:8px 10px; color:var(--ink); font-size:11px; text-transform:uppercase; }
.message-backtest-body { display:grid; gap:10px; padding:10px; border-top:1px solid var(--line); }
.message-backtest-warning { margin-bottom:8px; padding:7px 9px; border:1px solid var(--warn-line, #c08a2e); background:var(--warn-bg, rgba(192,138,46,0.12)); }
.message-backtest-warning p { margin:0; font-size:11px; line-height:1.5; }
.message-backtest-warning p + p { margin-top:4px; }
.message-backtest-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:6px; }
.message-backtest-grid span { display:grid; gap:2px; padding:7px 8px; border:1px solid var(--soft-line); background:var(--card); min-width:0; }
.message-backtest-grid small { color:var(--muted); font-size:10px; text-transform:uppercase; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.message-backtest-grid strong { color:var(--ink); font-size:12px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.message-chart-button { justify-self:start; min-height:30px; padding:6px 10px; }
.message-action-row { display:flex; flex-wrap:wrap; gap:8px; align-items:center; }
.publish-badge { display:inline-flex; align-items:center; min-height:30px; padding:6px 10px; border:1px solid var(--soft-line); background:var(--card); font-size:11px; text-transform:uppercase; }
button.published { color:var(--ok); cursor:default; }
.marketplace-card { display:grid; gap:10px; }
.marketplace-card-body { display:grid; gap:8px; }
.marketplace-card-body p { margin:0; color:var(--muted); line-height:1.45; }
.marketplace-card-body small { color:var(--muted); }
.composer { background:var(--panel); border-top:2px solid var(--line); padding:0; }
.send-row { display:grid; grid-template-columns:minmax(0,1fr) 120px; border-top:1px solid var(--line); align-items:stretch; }
.runner { position:relative; height:38px; overflow:hidden; visibility:hidden; border-right:1px solid var(--line); display:flex; align-items:center; gap:10px; padding-left:22px; color:var(--muted); }
.runner.running, .runner.done { visibility:visible; }
.runner-dots { position:relative; width:22px; height:22px; animation:dots-spin 1.8s cubic-bezier(.45,0,.55,1) infinite; }
.runner.done .runner-dots { display:none; }
.runner-dots::before { content:""; position:absolute; left:8px; top:0; width:6px; height:6px; border-radius:50%; background:var(--ink); box-shadow:-7px 13px var(--ink),7px 13px var(--ink); }
.runner-label { font-size:13px; white-space:nowrap; }
.runner::after { content:""; position:absolute; left:0; right:0; bottom:5px; border-bottom:1px dashed var(--line); opacity:.7; }
@keyframes dots-spin { to { transform:rotate(360deg); } }
.right-rail { padding:0; background:var(--panel); overflow:hidden; }
.shell.right-closed .env-card { display:none; }
.env-card { background:var(--panel); border:0; padding:0; }
.env-row { display:flex; justify-content:space-between; gap:12px; padding:10px 14px; color:var(--ink); border-bottom:1px solid var(--line); }
.env-row span { min-width:0; }
.env-row .env-muted { text-align:right; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.nav-toggle, .right-toggle, .theme-toggle { width:100%; border-width:0 0 1px; }
.right-toggle { writing-mode:vertical-rl; min-height:70px; padding:10px 6px; }
.button-row { display:grid; grid-template-columns:1fr 1fr; border-bottom:1px solid var(--line); }
.button-row button { border-width:0 1px 0 0; }
.button-row button:last-child { border-right:0; }
details { border:0; border-top:1px solid var(--line); background:var(--panel); padding:10px 14px; }
summary { cursor:pointer; color:var(--hot); font-size:12px; text-transform:uppercase; }
.good { color:var(--ok); }
.bad { color:var(--bad); }
.warn { color:var(--warn); }
@media (max-width:980px) {
  main { padding:0; }
  .shell, .shell.nav-closed, .shell.right-closed, .shell.nav-closed.right-closed { grid-template-columns:1fr; height:auto; border-width:0; }
  aside, .right-rail { display:none; }
  .chat { border-right:0; min-height:100vh; }
  .messages { min-height:520px; padding:14px; }
  .message, .message.user, .message.assistant, .message.system { width:100%; }
}