:root{--bg: #0c0f12;--panel: #12161b;--muted: #a7b0bb;--text: #e8eef6;--accent: #31d472;--border: #1f2630}*{box-sizing:border-box}html,body,#root{height:100%;margin:0;padding:0}body{font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial;background:radial-gradient(1000px 600px at 20% -10%,#18202a,#0c0f12 55%),radial-gradient(1000px 600px at 120% 10%,#18222c,#0c0f12 60%);color:var(--text)}.wrap{display:grid;grid-template-columns:280px 1fr;height:100%}.sidebar{border-right:1px solid var(--border);background:linear-gradient(180deg,#0f1318,#0b0f13);display:flex;flex-direction:column;gap:10px;padding:14px}.brand{font-weight:800;letter-spacing:.3px;font-size:18px;color:#fff;margin-bottom:6px}.chats{overflow:auto;padding-right:6px}.chatItem{width:100%;text-align:left;background:#0e1318;color:#c9d3dd;border:1px solid #121820;padding:10px 12px;border-radius:10px;margin-bottom:8px;cursor:pointer}.chatItem:hover{border-color:#1e2733;background:#0f151b}.main{display:grid;grid-template-rows:auto 1fr auto;height:100%}.topbar{border-bottom:1px solid var(--border);padding:12px 18px;background:#0b0f13a6;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.title{font-weight:700;letter-spacing:.2px}.thread{overflow:auto;padding:18px;display:flex;flex-direction:column;gap:10px}.msg{display:flex}.msg.user{justify-content:flex-end}.msg.assistant{justify-content:flex-start}.bubble{max-width:720px;padding:12px 14px;line-height:1.4;border:1px solid var(--border);border-radius:14px;background:#0e1318}.msg.user .bubble{background:linear-gradient(180deg,#0e1812,#0f1d16);border-color:#18281f}.msg.assistant .bubble{background:linear-gradient(180deg,#0f1318,#0c1015)}.composer{display:grid;grid-template-columns:54px 1fr 96px;gap:10px;padding:14px;border-top:1px solid var(--border);background:#0b0f13a6;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.input{resize:none;outline:none;border-radius:14px;padding:14px 16px;background:#0f141a;color:var(--text);border:1px solid #1a222d}.input:focus{border-color:#243042;box-shadow:0 0 0 2px #1a252f inset}.send{border:1px solid #1a2a20;background:#0e1a13;color:#dff7e8;border-radius:12px;font-weight:700;cursor:pointer}.send:hover{filter:brightness(1.07)}.pulseHolder{display:grid;place-items:center;border-radius:12px;background:#0f1612;border:1px solid #16241a}.pulse{width:38px;height:38px;color:var(--accent);display:grid;place-items:center}.pulse-svg{width:30px;height:18px}.pulse-svg polyline{stroke-dasharray:140;animation:talk 1.2s ease-in-out infinite}@keyframes talk{0%{stroke-dashoffset:140;opacity:.7}50%{stroke-dashoffset:0;opacity:1}to{stroke-dashoffset:140;opacity:.7}}@keyframes pulseDot{0%{transform:scale(1);opacity:.7}50%{transform:scale(1.35);opacity:1}to{transform:scale(1);opacity:.7}}