:root{--bg:#0b0d12;--pn:#141821;--ln:#252b38;--tx:#e8ebf2;--mu:#8a93a6;--ac:#7c5cff;--ok:#22c55e}
*{box-sizing:border-box}html,body{margin:0;height:100%}
body{background:var(--bg);color:var(--tx);font:14px/1.6 system-ui,-apple-system,"Segoe UI",Tahoma,sans-serif;display:flex;flex-direction:column}
.top{display:flex;justify-content:space-between;align-items:center;padding:10px 14px;border-bottom:1px solid var(--ln)}
.brand{display:flex;gap:8px;align-items:center}.logo{width:28px;height:28px;border-radius:8px;background:var(--ac);display:grid;place-items:center;font-weight:800}
.tag,.ver{font-size:11px;color:var(--mu);border:1px solid var(--ln);border-radius:20px;padding:1px 8px}
.shell{flex:1;display:grid;grid-template-columns:320px 1fr 260px;gap:10px;padding:10px;min-height:0}
.pane{background:var(--pn);border:1px solid var(--ln);border-radius:12px;padding:10px;display:flex;flex-direction:column;min-height:0}
h2{font-size:13px;margin:0 0 8px;color:var(--mu);font-weight:600}
.msgs{flex:1;overflow:auto;display:flex;flex-direction:column;gap:8px}
.m{padding:8px 10px;border-radius:10px;max-width:92%;white-space:pre-wrap}.m.bot{background:#1c2130}.m.me{background:var(--ac);align-self:flex-start}
.in{display:flex;gap:6px;margin-top:8px}.in textarea{flex:1;resize:none;background:#0f121a;color:var(--tx);border:1px solid var(--ln);border-radius:10px;padding:8px;font:inherit}
button{background:var(--ac);color:#fff;border:0;border-radius:10px;padding:6px 12px;font:inherit;cursor:pointer}
.bar{display:flex;justify-content:space-between;align-items:center}.tabs button{background:transparent;color:var(--mu);padding:3px 10px}.tabs .on{background:#232a3b;color:var(--tx)}
iframe,.code{flex:1;width:100%;border:0;border-radius:8px;background:#fff;min-height:0}
.code{background:#0f121a;color:#cfe3ff;font:12px/1.5 ui-monospace,Menlo,monospace;padding:10px;direction:ltr;resize:none}
.prog{height:6px;background:#0f121a;border-radius:6px;overflow:hidden}#pbar{height:100%;width:0;background:var(--ac);transition:width .3s}
.pct{font-size:12px;color:var(--mu);margin:4px 0 8px}
#steps{margin:0;padding:0 18px 0 0;overflow:auto;display:flex;flex-direction:column;gap:6px}
#steps li{color:var(--mu)}#steps li.run{color:var(--tx)}#steps li.run::after{content:" …"}#steps li.done{color:var(--ok)}#steps li.done::after{content:" ✓"}
#steps small{display:block;color:var(--mu);font-size:11px}
@media(max-width:900px){.shell{grid-template-columns:1fr;grid-auto-rows:minmax(260px,auto);overflow:auto}.preview{min-height:60vh}}