:root{--sc-surface:#fff;--sc-border:#e6e8ee;--sc-title:#0f172a;--sc-muted:#5b6577;--sc-bubble-ai:#f1f5f9;--sc-bubble-user:#6221ff;--sc-bubble-user-ink:#fff;--sc-accent:#6221ff;--sc-accent-tint:rgba(156,123,255,.14);--sc-shadow:0 18px 50px rgba(15,23,42,.18)}.dark{--sc-surface:#141a2b;--sc-border:hsla(0,0%,100%,.09);--sc-title:#e8edf5;--sc-muted:#9aa3b6;--sc-bubble-ai:#0f1420;--sc-bubble-user:#6221ff;--sc-bubble-user-ink:#fff;--sc-accent:#c9b8ff;--sc-accent-tint:rgba(156,123,255,.14);--sc-shadow:0 18px 50px rgba(0,0,0,.55)}.sc-fab{display:none;position:fixed;right:16px;bottom:84px;z-index:60;width:52px;height:52px;border-radius:9999px;place-items:center;background:var(--sc-bubble-user);color:#fff;box-shadow:var(--sc-shadow);transition:transform .15s ease}.sc-fab:hover{transform:scale(1.05)}.sc-fab svg{width:26px;height:26px}@media (min-width:1024px){.sc-fab{display:grid;right:24px;bottom:24px}}.sc-panel{position:fixed;right:16px;bottom:calc(var(--bn-h, 84px) + 12px);left:16px;z-index:60;display:flex;flex-direction:column;max-height:min(70vh,560px);background:var(--sc-surface);border:1px solid var(--sc-border);border-radius:18px;box-shadow:var(--sc-shadow);overflow:hidden}@media (min-width:768px){.sc-panel{left:auto;right:24px;bottom:88px;width:380px}}.sc-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:14px 16px;border-bottom:1px solid var(--sc-border)}.sc-title{font-size:15px;font-weight:700;color:var(--sc-title)}.sc-sub{font-size:12px;color:var(--sc-muted);margin-top:2px}.sc-reset{flex:none;font-size:12px;font-weight:600;color:var(--sc-accent);background:var(--sc-accent-tint);border-radius:9999px;padding:6px 10px}.sc-list{flex:1;overflow-y:auto;padding:14px 14px 6px;display:flex;flex-direction:column;gap:8px}.sc-msg{max-width:88%;padding:9px 12px;border-radius:14px;font-size:14px;line-height:1.4;white-space:pre-wrap;word-break:break-word}.sc-msg.assistant{align-self:flex-start;background:var(--sc-bubble-ai);color:var(--sc-title);border-bottom-left-radius:4px}.sc-msg.user{align-self:flex-end;background:var(--sc-bubble-user);color:var(--sc-bubble-user-ink);border-bottom-right-radius:4px}.sc-typing{color:var(--sc-muted);font-style:italic}.sc-escalated{margin-top:8px;padding-top:8px;border-top:1px dashed var(--sc-border);font-size:12px;color:var(--sc-accent);font-weight:600}.sc-error{align-self:center;font-size:12px;color:#dc2626}.sc-form{display:flex;align-items:flex-end;gap:8px;padding:10px 12px 12px;border-top:1px solid var(--sc-border)}.sc-input{flex:1;resize:none;max-height:120px;padding:10px 12px;border-radius:12px;border:1px solid var(--sc-border);background:var(--sc-bubble-ai);color:var(--sc-title);font-size:14px;outline:none}.sc-input:focus{border-color:var(--sc-accent)}.sc-input::-moz-placeholder{color:var(--sc-muted)}.sc-input::placeholder{color:var(--sc-muted)}.sc-send{flex:none;width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:var(--sc-bubble-user);color:#fff}.sc-send:disabled{opacity:.45}.sc-send svg{width:18px;height:18px}.sc-head-actions{display:flex;align-items:center;gap:6px;flex-shrink:0}.sc-close{width:32px;height:32px;border-radius:9999px;display:grid;place-items:center;color:inherit;opacity:.75}.sc-close:hover{opacity:1;background:var(--sc-accent-tint)}.sc-close svg{width:18px;height:18px}