:root{--bg: #e4e4ed;--surface: #ffffff;--surface-2: #f2f2fc;--surface-3: #efeffa;--border: #e6e6ef;--border-strong: #d9d9e6;--text: #151516;--muted: #6e6e7a;--accent: #ff6021;--accent-press: #e85416;--accent-soft: #fff1eb;--blue: #3787ff;--green: #16b364;--amber: #f5a524;--danger: #f5455c;--radius-lg: 20px;--radius: 16px;--radius-sm: 12px;--shadow-sm: 0 1px 2px rgba(21, 21, 22, .06), 0 1px 3px rgba(21, 21, 22, .05);--shadow: 0 8px 24px rgba(21, 21, 22, .08);--shadow-lg: 0 18px 50px rgba(21, 21, 22, .14);font-family:Manrope,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color-scheme:light}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-size:15px;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}button{font-family:inherit;cursor:pointer;border:none;transition:background .15s ease,transform .05s ease,box-shadow .15s ease,color .15s ease}button:active{transform:translateY(1px)}input,textarea{font-family:inherit;color:var(--text)}::placeholder{color:#a2a2b0}.mark{display:inline-flex;align-items:center;justify-content:center;background:var(--text);color:#fff;border-radius:14px;flex:none}.mark svg{width:58%;height:58%}.brand{display:flex;align-items:center;gap:10px}.brand-name{font-weight:800;letter-spacing:-.02em;line-height:1}.brand-sub{font-size:11px;font-weight:600;color:var(--muted);letter-spacing:.14em;text-transform:uppercase}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 18px;border-radius:var(--radius);font-weight:700;font-size:14px;background:var(--accent);color:#fff;box-shadow:0 6px 16px #ff602147}.btn:hover{background:var(--accent-press)}.btn:disabled{opacity:.6;cursor:not-allowed;box-shadow:none}.btn-block{width:100%}.btn-ghost{background:transparent;color:var(--muted);box-shadow:none;font-weight:600}.btn-ghost:hover{background:var(--surface-2);color:var(--text)}.btn-soft{background:var(--surface-2);color:var(--text);box-shadow:none}.btn-soft:hover{background:var(--surface-3)}.auth-wrap{min-height:100%;display:grid;place-items:center;padding:24px;background:radial-gradient(120% 120% at 50% 0%,#eeeef8 0%,var(--bg) 55%)}.auth{width:100%;max-width:400px;padding:34px 32px;background:var(--surface);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg)}.auth .brand{margin-bottom:22px}.auth h1{font-size:24px;font-weight:800;letter-spacing:-.02em;margin:0 0 6px}.auth .lead{color:var(--muted);font-size:14px;margin:0 0 22px}.field{margin-bottom:12px}.field label{display:block;font-size:12px;font-weight:600;color:var(--muted);margin-bottom:6px}.input{width:100%;padding:12px 14px;background:var(--surface-2);border:1px solid transparent;border-radius:var(--radius-sm);font-size:14px;outline:none;transition:border .15s ease,background .15s ease}.input:focus{background:var(--surface);border-color:var(--accent)}.error{background:#fff0f2;color:var(--danger);font-size:13px;padding:10px 12px;border-radius:var(--radius-sm);margin-bottom:14px}.switch{text-align:center;margin-top:16px;font-size:13px;color:var(--muted)}.switch b{color:var(--accent);cursor:pointer;font-weight:700}.layout{display:grid;grid-template-columns:288px 1fr;height:100%}.sidebar{background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:18px 14px;gap:14px;overflow:hidden}.sidebar-head{display:flex;align-items:center;justify-content:space-between;padding:4px 6px 0}.conv-list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:3px;margin:0 -4px;padding:0 4px}.conv-group-label{font-size:11px;font-weight:700;color:var(--muted);letter-spacing:.08em;text-transform:uppercase;padding:10px 8px 4px}.conv{display:flex;align-items:center;gap:9px;padding:10px 11px;border-radius:var(--radius-sm);cursor:pointer;font-size:14px;font-weight:500;color:#3d3d47;white-space:nowrap;overflow:hidden}.conv .dot{width:6px;height:6px;border-radius:50%;background:var(--border-strong);flex:none}.conv span{overflow:hidden;text-overflow:ellipsis}.conv:hover{background:var(--surface-2)}.conv.active{background:var(--accent-soft);color:var(--text);font-weight:600}.conv.active .dot{background:var(--accent)}.sidebar-foot{border-top:1px solid var(--border);padding-top:12px;display:flex;align-items:center;gap:10px}.avatar{width:34px;height:34px;border-radius:10px;background:var(--surface-2);color:var(--text);display:grid;place-items:center;font-weight:700;font-size:14px;flex:none}.who{flex:1;overflow:hidden}.who .email{font-size:13px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.who .role{font-size:11px;color:var(--muted)}.main{display:flex;flex-direction:column;height:100%;min-width:0}.topbar{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;border-bottom:1px solid var(--border);background:#ffffffb3;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.topbar .title{font-weight:700;letter-spacing:-.01em}.topbar .title small{color:var(--muted);font-weight:600;margin-left:6px}.pill{display:inline-flex;align-items:center;gap:7px;padding:6px 12px;border-radius:999px;font-size:12px;font-weight:600;background:var(--surface-2);color:var(--muted)}.pill .led{width:7px;height:7px;border-radius:50%;background:currentColor}.pill.ready{background:#e8f8ef;color:var(--green)}.pill.starting{background:#fef4e2;color:#b26a00}.pill.starting .led{animation:pulse 1s ease-in-out infinite}.pill.error{background:#fff0f2;color:var(--danger)}@keyframes pulse{0%,to{opacity:1}50%{opacity:.3}}.messages{flex:1;overflow-y:auto;padding:26px 24px;display:flex;flex-direction:column;gap:18px}.thread{width:100%;max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:18px}.row{display:flex;gap:12px;align-items:flex-start;animation:rise .22s ease}.row.user{flex-direction:row-reverse}@keyframes rise{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.bubble-avatar{width:32px;height:32px;border-radius:10px;flex:none}.msg{padding:13px 16px;border-radius:var(--radius);line-height:1.55;font-size:14.5px;white-space:pre-wrap;word-wrap:break-word;max-width:76%}.msg.assistant{background:var(--surface);border:1px solid var(--border);border-top-left-radius:6px;box-shadow:var(--shadow-sm)}.msg.user{background:var(--text);color:#fff;border-top-right-radius:6px}.typing{display:inline-flex;gap:4px;padding:4px 2px}.typing i{width:7px;height:7px;border-radius:50%;background:var(--muted);animation:blink 1.2s infinite ease-in-out}.typing i:nth-child(2){animation-delay:.2s}.typing i:nth-child(3){animation-delay:.4s}@keyframes blink{0%,80%,to{opacity:.25;transform:translateY(0)}40%{opacity:1;transform:translateY(-2px)}}.empty{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:14px;color:var(--muted)}.empty h2{margin:0;color:var(--text);font-size:22px;font-weight:800;letter-spacing:-.02em}.empty p{margin:0;max-width:360px;font-size:14px}.suggest{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:6px}.chip{background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:9px 14px;font-size:13px;font-weight:600;color:var(--text);box-shadow:var(--shadow-sm)}.chip:hover{border-color:var(--accent);color:var(--accent)}.composer-wrap{padding:14px 24px 20px;border-top:1px solid var(--border);background:#ffffffb3;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.composer{max-width:820px;margin:0 auto;display:flex;gap:10px;align-items:flex-end;background:var(--surface);border:1px solid var(--border-strong);border-radius:var(--radius);padding:8px 8px 8px 16px;box-shadow:var(--shadow-sm);transition:border .15s ease}.composer:focus-within{border-color:var(--accent)}.composer textarea{flex:1;resize:none;border:none;outline:none;background:transparent;font-size:14.5px;line-height:1.5;padding:8px 0;max-height:180px}.send{width:42px;height:42px;border-radius:12px;background:var(--accent);color:#fff;display:grid;place-items:center;flex:none;box-shadow:0 6px 16px #ff602147}.send:hover{background:var(--accent-press)}.send:disabled{background:var(--border-strong);box-shadow:none}.hint{max-width:820px;margin:8px auto 0;font-size:11.5px;color:var(--muted);text-align:center}.messages::-webkit-scrollbar,.conv-list::-webkit-scrollbar{width:8px}.messages::-webkit-scrollbar-thumb,.conv-list::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:8px}@media (max-width: 720px){.layout{grid-template-columns:1fr}.sidebar{display:none}.msg{max-width:86%}}