:root{
  --bg:#050a0f;
  --card:rgba(255,255,255,.06);
  --stroke:rgba(255,255,255,.12);
  --text:rgba(255,255,255,.92);
  --muted:rgba(255,255,255,.68);
  --muted2:rgba(255,255,255,.55);
  --glow:rgba(92, 200, 255, .12);
  --ok:rgba(80,220,150,.95);
  --bad:rgba(255,120,120,.95);
  --radius:18px;
  --radius2:26px;
  --shadow:0 18px 50px rgba(0,0,0,.55);
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono","Courier New", monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji","Segoe UI Emoji";
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:var(--sans);color:var(--text);background: radial-gradient(1200px 600px at 50% -10%, rgba(92,200,255,.18), transparent 60%), radial-gradient(900px 500px at 15% 110%, rgba(140,80,255,.14), transparent 55%), var(--bg);overflow:hidden;}
.bg{position:fixed; inset:-40px; background: radial-gradient(600px 280px at 68% 20%, rgba(255,255,255,.07), transparent 60%), radial-gradient(500px 260px at 20% 35%, rgba(255,255,255,.05), transparent 60%), radial-gradient(700px 300px at 55% 90%, rgba(255,255,255,.06), transparent 62%); pointer-events:none; opacity:.9;}
.shell{position:relative;width:min(1160px, 95vw);height:min(780px, 90vh);margin: 4vh auto;padding: 18px;border-radius: var(--radius2);background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));border:1px solid var(--stroke);box-shadow: var(--shadow);backdrop-filter: blur(12px);display:flex;flex-direction:column;}
.top{display:flex;align-items:center;justify-content:space-between;padding: 10px 12px 16px 12px;}
.brand{width: 54px;height: 34px;display:flex;align-items:center;justify-content:center;border:1px solid var(--stroke);border-radius: 14px;background: rgba(255,255,255,.04);font-weight:700;}
.meta{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px;flex-wrap:wrap;justify-content:flex-end;}
.tag{font-family:var(--mono);padding:4px 8px;border:1px solid var(--stroke);border-radius:999px;background:rgba(255,255,255,.04);}
.build-stamp{font-family:var(--mono);font-size:11px;opacity:.9;max-width:420px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.dot{width:7px;height:7px;border-radius:999px;background:var(--ok);box-shadow:0 0 0 6px rgba(80,220,150,.12);}

.main-grid{flex:1;display:grid;grid-template-columns:1.9fr 1fr;gap:14px;min-height:0;}
.chat{display:flex;flex-direction:column;border-radius:var(--radius2);border:1px solid var(--stroke);background:rgba(0,0,0,.18);overflow:hidden;min-height:0;}
.feed{flex:1;padding:18px;overflow:auto;scrollbar-width:thin;}
.msg{max-width:88%;padding:14px 16px;border-radius:var(--radius);border:1px solid var(--stroke);background:var(--card);margin:10px 0;box-shadow:0 10px 28px rgba(0,0,0,.28);white-space:pre-wrap;line-height:1.35;}
.msg.user{margin-left:auto;background:rgba(92,200,255,.09);border-color:rgba(92,200,255,.22);}
.msg.system{max-width:95%;}
.small{margin-top:10px;color:var(--muted2);font-size:12px;font-family:var(--mono);word-break:break-all;}
.composer{display:flex;gap:10px;padding:14px;border-top:1px solid var(--stroke);background:rgba(0,0,0,.22);}
.input{flex:1;border-radius:18px;border:1px solid rgba(255,255,255,.14);background:rgba(0,0,0,.22);padding:14px;color:var(--text);outline:none;}
.input:focus{border-color:rgba(92,200,255,.32);box-shadow:0 0 0 6px var(--glow);}
.btn-icon{width:52px;height:48px;border-radius:18px;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.05);color:var(--text);cursor:pointer;}
.hint{padding:10px 14px 14px;color:var(--muted2);font-size:12px;text-align:center;}

.workflows{border-radius:var(--radius2);border:1px solid var(--stroke);background:rgba(0,0,0,.2);padding:12px;display:flex;flex-direction:column;min-height:0;}
.wf-title{font-weight:700;margin-bottom:8px;}
.wf-list{overflow:auto;display:flex;flex-direction:column;gap:8px;}
.wf-row{border:1px solid var(--stroke);background:rgba(255,255,255,.04);padding:10px;border-radius:14px;}
.wf-id{font-family:var(--mono);font-size:12px;margin-bottom:4px;}
.wf-meta{font-size:12px;color:var(--muted);}
.wf-empty{font-size:12px;color:var(--muted);padding:8px;}
.actions{display:flex;gap:8px;margin-top:8px;}
.btn-small{border:1px solid var(--stroke);background:rgba(80,220,150,.13);color:var(--text);border-radius:10px;padding:6px 10px;cursor:pointer;font-size:12px;}
.bad-btn{background:rgba(255,120,120,.14);}
.action-card{border-color:rgba(92,200,255,.3)}

.ai-settings{display:flex;flex-direction:column;gap:8px;margin-top:8px;padding-top:8px;border-top:1px solid var(--stroke);}
.ai-settings label{display:flex;flex-direction:column;gap:4px;font-size:12px;color:var(--muted);}
.ai-settings .input,.ai-settings select{padding:8px 10px;border-radius:10px;border:1px solid var(--stroke);background:rgba(0,0,0,.2);color:var(--text);font-size:12px;}

@media (max-width: 940px){
  .main-grid{grid-template-columns:1fr;}
  .workflows{max-height:220px;}
}