:root{--bg:#0a0b0d;--panel:#121418;--panel-2:#1a1d23;--border:#24282f;--text:#e7e9ee;--muted:#8b919e;--accent:#f5a524;--accent-dim:#b9791a;--user:#1e2530;--radius:14px;--mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,monospace;--sans:"Geist",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}*{box-sizing:border-box}body,html{margin:0;padding:0;height:100%;background:var(--bg);color:var(--text);font-family:var(--sans);-webkit-font-smoothing:antialiased}.shell{max-width:760px;margin:0 auto;min-height:100dvh;display:flex;flex-direction:column;padding:0 20px}.head{padding:26px 4px 18px;border-bottom:1px solid var(--border)}.brand{display:flex;align-items:center;gap:10px;font-weight:600;font-size:18px;letter-spacing:-.01em}.dot{width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 14px 1px var(--accent-dim)}.tag{margin-top:6px;color:var(--muted);font-size:13.5px;line-height:1.5}.tag b{color:var(--text);font-weight:600}.thread{flex:1 1;overflow-y:auto;padding:22px 2px 8px;flex-direction:column;gap:16px}.row,.thread{display:flex}.row.user{justify-content:flex-end}.bubble{max-width:90%;padding:12px 15px;border-radius:var(--radius);font-size:15px;line-height:1.58;white-space:pre-wrap;word-wrap:break-word}.bubble.user{background:var(--user);border:1px solid var(--border);border-bottom-right-radius:5px}.bubble.bot{background:var(--panel);border:1px solid var(--border);border-bottom-left-radius:5px}.bubble .bbl,.bubble code{font-family:var(--mono);font-size:13px;background:var(--panel-2);border:1px solid var(--border);padding:1px 6px;border-radius:6px;color:var(--accent)}.empty{padding:14px 2px}.empty h1{font-size:27px;letter-spacing:-.02em;margin:10px 0 6px;font-weight:650}.empty p{color:var(--muted);margin:0 0 22px;font-size:14.5px}.chips{display:flex;flex-direction:column;gap:9px}.chip{text-align:left;background:var(--panel);border:1px solid var(--border);color:var(--text);padding:13px 15px;border-radius:12px;font-size:14px;cursor:pointer;transition:border-color .15s,transform .05s}.chip:hover{border-color:var(--accent-dim)}.chip:active{transform:translateY(1px)}.chip span{color:var(--muted)}.composer{position:-webkit-sticky;position:sticky;bottom:0;background:linear-gradient(to top,var(--bg) 72%,transparent);padding:14px 0 22px}.box{display:flex;gap:8px;align-items:flex-end;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:8px 8px 8px 14px}.box:focus-within{border-color:var(--accent-dim)}textarea{flex:1 1;background:transparent;border:none;color:var(--text);font-family:var(--sans);font-size:15px;line-height:1.5;resize:none;max-height:160px;outline:none;padding:6px 0}.send{background:var(--accent);color:#1a1205;border:none;border-radius:10px;width:38px;height:38px;font-size:17px;cursor:pointer;flex-shrink:0;font-weight:700}.send:disabled{opacity:.4;cursor:default}.hint{color:var(--muted);font-size:11.5px;text-align:center;margin-top:9px}.dots{display:inline-flex;gap:4px;padding:4px 0}.dots i{width:6px;height:6px;border-radius:50%;background:var(--muted);animation:blink 1.3s infinite both}.dots i:nth-child(2){animation-delay:.2s}.dots i:nth-child(3){animation-delay:.4s}@keyframes blink{0%,80%,to{opacity:.25}40%{opacity:1}}