#chat-window{position:fixed;bottom:96px;right:28px;width:380px;height:560px;background:#fff;border:1px solid #e5e5e7;border-radius:20px;box-shadow:0 24px 64px #0000001f,0 8px 24px #0000000f;display:none;flex-direction:column;z-index:999;overflow:hidden;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif}#chat-window.open{display:flex;animation:chat-open .3s cubic-bezier(.16,1,.3,1) both}@keyframes chat-open{0%{opacity:0;transform:translateY(16px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}#resizer{position:absolute;top:0;left:0;right:0;height:6px;cursor:n-resize;z-index:10}#resizer-left{position:absolute;top:0;left:0;bottom:0;width:6px;cursor:e-resize;z-index:10}#resizer-corner{position:absolute;top:0;left:0;width:12px;height:12px;cursor:nw-resize;z-index:11}#chat-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;background:#1d1d1f;color:#fff;flex-shrink:0;font-size:.875rem;font-weight:600}#chat-messages{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:12px;scrollbar-width:thin;scrollbar-color:#e5e5e7 transparent}#chat-messages::-webkit-scrollbar{width:4px}#chat-messages::-webkit-scrollbar-track{background:transparent}#chat-messages::-webkit-scrollbar-thumb{background:#e5e5e7;border-radius:99px}.message{max-width:84%;padding:10px 14px;border-radius:16px;font-size:.875rem;line-height:1.6;animation:msg-in .25s cubic-bezier(.16,1,.3,1) both;word-wrap:break-word}@keyframes msg-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.bot-message{background:#f5f5f7;color:#1d1d1f;align-self:flex-start;border-bottom-left-radius:4px}.user-message{background:#1d1d1f;color:#fff;align-self:flex-end;border-bottom-right-radius:4px}.suggestions-container{display:flex;flex-wrap:wrap;gap:6px;margin-top:4px}.suggestion-btn{touch-action:manipulation;padding:6px 14px;background:#fff;border:1px solid #e5e5e7;border-radius:99px;font-size:.78rem;font-weight:500;color:#6e6e73;cursor:pointer;font-family:inherit;transition:all .18s ease}.suggestion-btn:hover{background:#1d1d1f;color:#fff;border-color:#1d1d1f}.typing-indicator{display:inline-flex;align-items:center;gap:5px;padding:12px 16px;background:#f5f5f7;border-radius:16px 16px 16px 4px;align-self:flex-start}.typing-dot{width:7px;height:7px;background:#a1a1aa;border-radius:50%;animation:typing-bounce 1.2s ease infinite}.typing-dot:nth-child(2){animation-delay:.15s}.typing-dot:nth-child(3){animation-delay:.3s}@keyframes typing-bounce{0%,80%,to{transform:scale(1);opacity:.5}40%{transform:scale(1.2);opacity:1}}#chat-input-container{display:flex;align-items:center;gap:10px;padding:14px 20px;border-top:1px solid #f0f0f2;background:#fff;flex-shrink:0}#chat-input{flex:1;border:1px solid #e5e5e7;border-radius:12px;padding:10px 14px;font-size:.875rem;font-family:inherit;color:#1d1d1f;background:#f5f5f7;outline:none;transition:border-color .2s,box-shadow .2s,background .2s}#chat-input:focus{border-color:#0071e3;background:#fff;box-shadow:0 0 0 3px #0071e31a}#chat-input::placeholder{color:#a1a1aa}#send-btn{touch-action:manipulation;width:36px;height:36px;background:#1d1d1f;border:none;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background .2s,transform .2s}#send-btn:hover{background:#000;transform:scale(1.05)}#send-btn svg{width:16px;height:16px;fill:#fff}.message pre{background:#1d1d1f;color:#f5f5f7;padding:12px;border-radius:8px;overflow-x:auto;margin-top:8px;font-size:.78rem;line-height:1.5}.message code{font-family:SF Mono,Fira Code,monospace;font-size:.82em}.bot-message code:not(pre code){background:#e5e5e7;padding:2px 6px;border-radius:4px}.custom-modal{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:2000;align-items:center;justify-content:center}.custom-modal.active{display:flex;animation:modal-in .2s ease both}@keyframes modal-in{0%{opacity:0}to{opacity:1}}.modal-content{background:#fff;border:1px solid #e5e5e7;border-radius:20px;padding:28px;width:90%;max-width:420px;box-shadow:0 24px 64px #00000026;animation:modal-slide .3s cubic-bezier(.16,1,.3,1) both}@keyframes modal-slide{0%{opacity:0;transform:translateY(-20px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}.modal-content h4{font-family:Space Grotesk,sans-serif;font-size:1.05rem;font-weight:600;color:#1d1d1f;margin-bottom:16px}.modal-content p{font-size:.9rem;color:#6e6e73;line-height:1.65;margin-bottom:20px}#report-text{width:100%;border:1px solid #e5e5e7;border-radius:12px;padding:12px 14px;font-size:.875rem;font-family:inherit;color:#1d1d1f;background:#f5f5f7;outline:none;resize:vertical;min-height:100px;margin-bottom:20px;transition:border-color .2s,box-shadow .2s}#report-text:focus{border-color:#0071e3;background:#fff;box-shadow:0 0 0 3px #0071e31a}.modal-actions{display:flex;gap:10px;justify-content:flex-end}.btn-cancel{padding:10px 20px;background:#f5f5f7;border:1px solid #e5e5e7;border-radius:99px;font-size:.875rem;font-weight:500;color:#6e6e73;cursor:pointer;font-family:inherit;transition:all .2s}.btn-cancel:hover{background:#e5e5e7;color:#1d1d1f}.modal-content .btn-primary{padding:10px 20px;font-size:.875rem;border-radius:99px}.btn-danger{padding:10px 20px;background:#ef4444;border:none;border-radius:99px;font-size:.875rem;font-weight:600;color:#fff;cursor:pointer;font-family:inherit;transition:all .2s}.btn-danger:hover{background:#dc2626;transform:translateY(-1px)}#toast-container{position:fixed;bottom:28px;left:50%;transform:translate(-50%);z-index:3000;display:flex;flex-direction:column;gap:8px;pointer-events:none;align-items:center}.toast{padding:12px 20px;background:#1d1d1f;color:#fff;border-radius:99px;font-size:.85rem;font-weight:500;box-shadow:0 8px 24px #0003;animation:toast-in .3s cubic-bezier(.16,1,.3,1) both;pointer-events:auto;white-space:nowrap}.toast.success{background:#1d1d1f}.toast.error{background:#ef4444}.toast.info{background:#0071e3}@keyframes toast-in{0%{opacity:0;transform:translateY(8px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes toast-out{0%{opacity:1;transform:translateY(0) scale(1)}to{opacity:0;transform:translateY(-8px) scale(.95)}}.message ul,.message ol{padding-left:20px;margin:6px 0}.message li{margin:4px 0;line-height:1.55}.message strong{font-weight:600}.message em{font-style:italic}.message a{color:#0071e3;text-decoration:underline;text-underline-offset:2px}.message h1,.message h2,.message h3{font-family:Space Grotesk,sans-serif;margin:8px 0 4px}.message h1{font-size:1rem}.message h2{font-size:.95rem}.message h3{font-size:.9rem}.message-wrapper{display:flex;flex-direction:column;gap:4px}.message-actions{display:flex;gap:6px;align-self:flex-start;opacity:0;transition:opacity .2s}.message-wrapper:hover .message-actions{opacity:1}.msg-action-btn{touch-action:manipulation;background:none;border:none;cursor:pointer;padding:3px 8px;border-radius:6px;font-size:.72rem;color:#a1a1aa;transition:all .15s;font-family:inherit}.msg-action-btn:hover{background:#f5f5f7;color:#6e6e73}.katex{font-size:1em}.action-btn{touch-action:manipulation;display:inline-flex;align-items:center;gap:5px;padding:4px 10px;background:transparent;border:1px solid #e5e5e7;border-radius:6px;font-size:.72rem;font-weight:500;color:#6e6e73;cursor:pointer;font-family:inherit;transition:background .15s,border-color .15s,color .15s;white-space:nowrap;line-height:1}.action-btn svg{width:12px;height:12px;fill:currentColor;flex-shrink:0}.action-btn:hover{background:#f5f5f7;border-color:#ccc;color:#1d1d1f}.action-btn:active{background:#e5e5e7;transform:scale(.97)}@media(max-width:480px){#chat-window{width:100%;height:55dvh;left:0;right:0;bottom:0;border-radius:20px 20px 0 0;box-shadow:0 -8px 24px #0000001a}#chat-messages{scrollbar-width:none}#chat-messages::-webkit-scrollbar{display:none}#chat-input{font-size:16px}#ai-fab{bottom:20px;right:20px;width:50px;height:50px}#resizer,#resizer-left,#resizer-corner{display:none}}