#psai-widget-button{position:fixed;bottom:24px;right:24px;width:60px;height:60px;border-radius:30px;background:linear-gradient(135deg,#2563eb 0%,#1d4ed8 100%);color:#fff;border:none;box-shadow:0 8px 24px rgba(37,99,235,.35);cursor:pointer;z-index:999990;display:flex;align-items:center;justify-content:center;font-size:26px;transition:transform .25s cubic-bezier(.4,0,.2,1),box-shadow .25s ease}#psai-widget-button:hover{transform:scale(1.08) translateY(-2px);box-shadow:0 12px 32px rgba(37,99,235,.45)}#psai-widget-container{position:fixed;bottom:96px;right:24px;width:420px;max-width:calc(100vw - 32px);height:620px;max-height:calc(100vh - 120px);background:#fff;border-radius:16px;border:1px solid #cbd5e1;box-shadow:0 20px 50px rgba(15,23,42,.22);z-index:999991;display:flex;flex-direction:column;overflow:hidden;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;transition:all .3s cubic-bezier(.4,0,.2,1)}#psai-widget-container.hidden{display:none;opacity:0;transform:translateY(20px) scale(.95)}.psai-widget-header{background:linear-gradient(135deg,#0f172a 0%,#1e293b 100%);color:#fff;padding:16px 20px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid rgba(255,255,255,.1)}.psai-widget-header h3{margin:0;font-size:1.05rem;font-weight:800;color:#fff;display:flex;align-items:center;gap:8px}.psai-widget-close{background:0 0;border:none;color:#94a3b8;font-size:24px;cursor:pointer}.psai-widget-close:hover{color:#fff}.psai-widget-body{flex:1;padding:16px;overflow-y:auto;background:#f8fafc;display:flex;flex-direction:column;gap:12px}.psai-message{display:flex;gap:10px;max-width:90%}.psai-message.user{align-self:flex-end;flex-direction:row-reverse}.psai-message.assistant{align-self:flex-start}.psai-avatar{width:32px;height:32px;border-radius:16px;background:#e2e8f0;display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0}.psai-bubble{background:#fff;padding:12px 16px;border-radius:14px;border:1px solid #e2e8f0;font-size:13.5px;line-height:1.55;color:#1e293b;box-shadow:0 1px 3px rgba(0,0,0,.04)}.psai-message.user .psai-bubble{background:#2563eb;color:#fff;border-color:#2563eb;border-top-right-radius:2px}.psai-message.assistant .psai-bubble{border-top-left-radius:2px}.psai-sources-list{margin-top:8px;padding-top:8px;border-top:1px solid #f1f5f9;font-size:11px;color:#64748b}.psai-source-chip{display:inline-block;background:#eff6ff;color:#2563eb;padding:2px 6px;border-radius:4px;font-weight:700;margin-right:4px;margin-top:4px}.psai-feedback-actions{display:flex;gap:6px;margin-top:8px}.psai-fb-btn{background:0 0;border:1px solid #cbd5e1;border-radius:4px;padding:2px 6px;font-size:11px;cursor:pointer;transition:background .2s}.psai-fb-btn:hover{background:#f1f5f9}.psai-widget-footer{padding:12px 16px;background:#fff;border-top:1px solid #e2e8f0}.psai-widget-footer form{display:flex;gap:8px}.psai-widget-input{flex:1;padding:10px 14px;border-radius:8px;border:1px solid #cbd5e1;font-size:13px;outline:none}.psai-widget-input:focus{border-color:#2563eb;box-shadow:0 0 0 2px rgba(37,99,235,.15)}.psai-widget-submit{background:#2563eb;color:#fff;border:none;border-radius:8px;padding:0 16px;font-weight:700;cursor:pointer}