File size: 55,002 Bytes
f4a40f2
0261885
f4a40f2
1be59e6
 
bf21c58
1be59e6
 
 
dce595c
 
 
 
 
1be59e6
 
 
 
 
 
 
 
 
 
 
 
bf21c58
1be59e6
 
 
bf21c58
1be59e6
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
bf21c58
 
1be59e6
 
bf21c58
1be59e6
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
bf21c58
1be59e6
 
 
bf21c58
 
1be59e6
 
 
dce595c
1be59e6
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
50e4c37
1be59e6
 
 
 
 
 
 
6f56f64
 
1be59e6
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
dce595c
bf21c58
1be59e6
 
 
 
 
6f56f64
1be59e6
 
 
 
 
 
bf21c58
1be59e6
 
dce595c
 
1be59e6
 
 
dce595c
 
 
 
 
 
 
 
 
6f56f64
 
1be59e6
 
 
50e4c37
1be59e6
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
bf21c58
1be59e6
 
 
 
f4a40f2
50e4c37
0261885
6c86393
0261885
1be59e6
 
bf21c58
1be59e6
 
 
6c86393
dce595c
6c86393
1be59e6
 
 
 
 
 
bf21c58
1be59e6
f3977be
1be59e6
 
 
 
 
 
 
 
 
 
 
 
6c86393
1be59e6
 
 
bf21c58
1be59e6
 
 
 
 
 
 
 
 
 
 
 
 
 
dce595c
1be59e6
 
 
 
 
 
50e4c37
1be59e6
 
 
 
 
195ec86
1be59e6
 
 
 
 
f3977be
1be59e6
 
 
 
 
 
 
 
 
6f56f64
 
1be59e6
6f56f64
f3977be
1be59e6
 
 
 
6f56f64
dce595c
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
6f56f64
 
 
 
bf21c58
6f56f64
1be59e6
 
 
 
0261885
bf21c58
1be59e6
f3977be
1be59e6
 
 
 
 
 
 
 
 
 
 
 
 
 
6c86393
f3977be
6c86393
1be59e6
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
6c86393
1be59e6
0261885
f4a40f2
0261885
dce595c
 
 
6c86393
1be59e6
f3977be
6c86393
 
dce595c
1be59e6
dce595c
1be59e6
dce595c
 
 
1be59e6
dce595c
 
1be59e6
 
 
 
 
 
 
 
 
bf21c58
6c86393
1be59e6
dce595c
 
f3977be
6c86393
dce595c
6f56f64
dce595c
6f56f64
 
 
dce595c
bf21c58
50e4c37
dce595c
 
6f56f64
 
 
 
dce595c
bf21c58
 
 
dce595c
bf21c58
 
 
 
6f56f64
 
 
 
 
 
 
 
 
dce595c
 
6c86393
 
dce595c
 
 
 
 
 
 
 
 
 
 
 
0261885
dce595c
 
 
 
 
 
 
 
 
f3977be
6c86393
dce595c
 
 
 
 
 
 
 
 
 
 
 
 
 
6c86393
dce595c
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
6c86393
dce595c
 
 
 
6c86393
dce595c
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1be59e6
 
dce595c
195ec86
f3977be
dce595c
1be59e6
 
 
 
dce595c
 
 
 
 
 
 
 
1be59e6
 
 
 
 
dce595c
 
 
1be59e6
 
f3977be
1be59e6
 
 
 
 
 
0261885
1be59e6
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
6f56f64
1be59e6
 
6f56f64
1be59e6
6f56f64
dce595c
 
6f56f64
 
dce595c
 
 
 
6f56f64
 
 
1be59e6
 
 
 
6f56f64
dce595c
1be59e6
 
 
 
 
 
bf21c58
50e4c37
 
 
 
 
1be59e6
 
 
bf21c58
1be59e6
 
 
 
dce595c
bf21c58
1be59e6
6f56f64
1be59e6
 
bf21c58
1be59e6
 
 
 
 
dce595c
50e4c37
dce595c
1be59e6
dce595c
1be59e6
 
 
 
 
 
 
 
 
 
 
 
 
dce595c
1be59e6
 
 
6c86393
 
6f56f64
1be59e6
 
 
dce595c
1be59e6
 
6c86393
1be59e6
dce595c
 
 
1be59e6
0261885
f4a40f2
195ec86
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
<title>Arjun 2.O - Advanced AI</title>
<link rel="preconnect" href="https://fonts.googleapis.com">
<link href="https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Inter:wght@300;400;500;600;700&family=Geist+Mono:wght@400;500&display=swap" rel="stylesheet">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/styles/github.min.css">
<!-- PDF.js for PDF to Text Extraction -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/pdf.js/3.11.174/pdf.min.js"></script>
<!-- Mammoth.js for Word (.docx) to Text Extraction -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/mammoth/1.6.0/mammoth.browser.min.js"></script>

<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/highlight.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/marked/12.0.1/marked.min.js"></script>
<style>
/* --- BASE RESET & VARIABLES --- */
*{margin:0;padding:0;box-sizing:border-box;}
:root{
  --bg-color: #ffffff; --bg-secondary: #f9f9fb; --text-main: #1d1d1f; --text-muted: #86868b;
  --accent: #FF9933; --accent-green: #138808; --accent-hover: #e68a2e;
  --border-light: rgba(0, 0, 0, 0.08); --border-focus: rgba(255, 153, 51, 0.3);
  --glass-bg: rgba(255, 255, 255, 0.85); --glass-border: rgba(255, 255, 255, 0.4);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.04); --shadow-md: 0 8px 32px rgba(0,0,0,0.08);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
  --font-serif: 'Instrument Serif', serif; --font-sans: 'Inter', -apple-system, sans-serif;
  --font-mono: 'Geist Mono', monospace;
  --radius-lg: 24px; --radius-md: 16px; --radius-sm: 8px;
}
html,body{height:100dvh;overflow:hidden;background:var(--bg-color);color:var(--text-main);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;}

/* --- BACKGROUND --- */
.bg{position:fixed;inset:0;z-index:0;overflow:hidden;pointer-events:none;background: linear-gradient(135deg, rgba(255,153,51,0.05) 0%, rgba(255,255,255,1) 50%, rgba(19,136,8,0.05) 100%);}
.orb{position:absolute;border-radius:50%;filter:blur(100px);opacity:0.5;animation:drift 25s ease-in-out infinite alternate;}
.orb1{width:600px;height:600px;background:radial-gradient(circle,rgba(255,153,51,0.2),transparent 70%);top:-150px;left:-100px;}
.orb2{width:500px;height:500px;background:radial-gradient(circle,rgba(19,136,8,0.18),transparent 70%);bottom:-100px;right:-100px;animation-delay:-10s;}
@keyframes drift{0%{transform:translate(0,0) scale(1);}100%{transform:translate(60px,40px) scale(1.05);}}

/* --- TOAST NOTIFICATION --- */
#toast-container { position: absolute; top: 20px; left: 50%; transform: translateX(-50%); z-index: 10000; display: flex; flex-direction: column; gap: 10px; }
.toast { background: var(--text-main); color: #fff; padding: 12px 24px; border-radius: 50px; font-size: 13px; font-weight: 600; box-shadow: var(--shadow-md); animation: slideDownFade 0.4s ease; }
@keyframes slideDownFade { from { opacity: 0; transform: translateY(-20px); } to { opacity: 1; transform: translateY(0); } }

/* --- GET STARTED OVERLAY --- */
.welcome-overlay { position: fixed; inset: 0; background: rgba(255,255,255,0.95); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); z-index: 9999; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 20px; transition: opacity 0.4s ease; }
.welcome-overlay.hidden { opacity: 0; pointer-events: none; }
.welcome-overlay img { width: 120px; height: 120px; border-radius: 28px; object-fit: cover; box-shadow: var(--shadow-lg); margin-bottom: 24px; border: 1px solid var(--border-light); }
.welcome-overlay h1 { font-family: var(--font-sans); font-size: 36px; font-weight: 800; color: var(--text-main); letter-spacing: -1px; margin-bottom: 12px; }
.welcome-overlay p { font-size: 16px; color: var(--text-muted); line-height: 1.6; max-width: 450px; margin-bottom: 36px; }
.start-btn { padding: 16px 40px; background: var(--text-main); color: #fff; border: none; border-radius: 16px; font-size: 16px; font-weight: 600; cursor: pointer; transition: all 0.3s; box-shadow: 0 8px 24px rgba(0,0,0,0.15); }
.start-btn:hover { background: #333; transform: translateY(-3px); box-shadow: 0 12px 32px rgba(0,0,0,0.2); }

/* --- MAIN LAYOUT --- */
.shell{position:relative;z-index:1;display:flex;height:100dvh;width:100vw;overflow:hidden;}
.sidebar{width:280px;display:flex;flex-direction:column;background:var(--bg-secondary);border-right:1px solid var(--border-light);flex-shrink:0;z-index:100; transition: left 0.3s ease;}
.main-wrapper{flex:1;display:flex;position:relative;overflow:hidden;}
.chat-main{flex:1;display:flex;flex-direction:column;background:transparent;position:relative;min-width:300px;transition:all 0.3s cubic-bezier(0.4, 0, 0.2, 1); height: 100%;}
.workspace{width:0;background:#fafafa;border-left:1px solid var(--border-light);display:flex;flex-direction:column;transition:all 0.3s cubic-bezier(0.4, 0, 0.2, 1);overflow:hidden;box-shadow:-10px 0 30px rgba(0,0,0,0.02);z-index:25;}
.workspace.open{width:50%;}

/* --- SIDEBAR & BRANDING --- */
.logo-area{padding:24px 20px;border-bottom:1px solid var(--border-light); display: flex; justify-content: space-between; align-items: center;}
.logo-row{display:flex;align-items:center;gap:12px;}
.logo-img{width:44px;height:44px;border-radius:12px;object-fit:cover;box-shadow:var(--shadow-sm);border:1px solid var(--border-light);background:#fff;}
.logo-text{line-height:1.2;}
.logo-name{font-family:var(--font-sans);font-weight:800;font-size:16px;color:var(--text-main);letter-spacing:-0.5px;}
.logo-sub{font-size:10px;font-weight:600;letter-spacing:1px;text-transform:uppercase;color:var(--text-muted);}
.close-sidebar-btn { display: none; background: none; border: none; font-size: 20px; color: var(--text-main); cursor: pointer; }

/* Auth Block in Sidebar */
.auth-block { padding: 20px; border-bottom: 1px solid var(--border-light); }
.user-profile { display: none; align-items: center; gap: 10px; background: #fff; padding: 10px; border-radius: 12px; border: 1px solid var(--border-light); box-shadow: var(--shadow-sm); }
.user-avatar { width: 32px; height: 32px; border-radius: 50%; background: var(--text-main); color: white; display: flex; align-items: center; justify-content: center; font-weight: bold; font-size: 14px; }
.user-email { flex: 1; font-size: 12px; font-weight: 600; color: var(--text-main); text-overflow: ellipsis; overflow: hidden; white-space: nowrap; }
.logout-btn { background: none; border: none; color: #ff3b30; cursor: pointer; font-size: 16px; padding: 4px; }
.login-prompt-btn { width: 100%; padding: 12px; border-radius: 12px; background: var(--text-main); color: #fff; border: none; font-size: 13px; font-weight: 600; cursor: pointer; transition: 0.2s; display: flex; align-items: center; justify-content: center; gap: 8px; }
.login-prompt-btn:hover { background: #333; transform: translateY(-1px); box-shadow: var(--shadow-sm); }

.settings{padding:20px;flex:1;overflow-y:auto;display:flex;flex-direction:column;gap: 20px;}
.brand-box {background: #ffffff;border: 1px solid var(--border-light);border-radius: var(--radius-md);padding: 24px 16px;text-align: center;box-shadow: var(--shadow-sm);margin-top:auto;}
.brand-box img {width: 70px; height: 70px; border-radius: 16px; object-fit: cover; margin-bottom: 12px; box-shadow: var(--shadow-sm); border: 1px solid var(--border-light);}
.brand-box h3 {font-family: var(--font-sans); font-size: 15px; font-weight: 700; color: var(--text-main); margin-bottom: 6px;}
.brand-box p {font-size: 10px; font-weight: 600; color: var(--accent-green); line-height: 1.4; letter-spacing: 0.5px;}

.clear-btn{width:100%;padding:12px;border-radius:var(--radius-sm);background:#ffffff;border:1px solid var(--border-light);color:var(--text-main);font-size:13px;font-weight:600;cursor:pointer;transition:all 0.2s;}
.clear-btn:hover{background:#fff0f0;color:#ff3b30;border-color:#ff3b30;}

/* --- CHAT AREA --- */
.chat-hdr{padding:14px 24px;border-bottom:1px solid var(--border-light);background:var(--glass-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);display:flex;align-items:center;z-index:10;flex-shrink:0;}
.mobile-menu-btn { display: none; background: none; border: none; font-size: 24px; color: var(--text-main); cursor: pointer; margin-right: 16px; }
.model-badge{font-size:13px;font-weight:600;display:flex;align-items:center;gap:8px;}
.status-dot{width:8px;height:8px;border-radius:50%;background:#34c759;box-shadow:0 0 0 2px rgba(52,199,89,0.2);}

.messages{flex:1;overflow-y:auto;padding:30px 40px;display:flex;flex-direction:column;gap:24px;scroll-behavior:smooth;position:relative; min-height:0;}
.messages::-webkit-scrollbar{width:6px;}
.messages::-webkit-scrollbar-thumb{background:rgba(0,0,0,0.1);border-radius:10px;}

/* Welcome Screen */
.welcome{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:40px 20px;margin:auto;animation:fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;width:100%;max-width:650px;}
@keyframes fadeInUp{from{opacity:0;transform:translateY(20px);}to{opacity:1;transform:none;}}
.welcome-logo{width:80px;height:80px;border-radius:24px;object-fit:cover;box-shadow:var(--shadow-md);margin-bottom:24px;border:1px solid var(--border-light);}
.welcome-title{font-size:32px;font-weight:800;letter-spacing:-1px;margin-bottom:12px;}
.welcome-sub{font-size:15px;color:var(--text-muted);line-height:1.6;margin-bottom:20px;max-width: 500px;}
.guest-badge { background: #fff0f0; color: #ff3b30; padding: 6px 12px; border-radius: 20px; font-size: 12px; font-weight: 700; margin-bottom: 24px; border: 1px solid #ffcccb; display: none; }

.ex-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;width:100%;}
.ex-card{background:var(--glass-bg);backdrop-filter:blur(10px);border:1px solid var(--border-light);border-radius:var(--radius-md);padding:16px;cursor:pointer;text-align:left;transition:all 0.2s;box-shadow:var(--shadow-sm);}
.ex-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--accent);}
.ex-title{font-size:13px;font-weight:600;color:var(--text-main);margin-bottom:4px;display:flex;align-items:center;gap:6px;}
.ex-desc{font-size:12px;color:var(--text-muted);line-height:1.4;}

/* Messages */
.msg{display:flex;gap:16px;animation:msgIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) both;max-width:85%;}
@keyframes msgIn{from{opacity:0;transform:translateY(15px) scale(0.96);}to{opacity:1;transform:none;}}
.msg.user{flex-direction:row-reverse;align-self:flex-end;}
.msg.bot{align-self:flex-start;}
.avatar{width:36px;height:36px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:600;overflow:hidden;}
.msg.user .avatar{background:#f0f0f0;color:var(--text-main);border:1px solid var(--border-light);}
.msg.bot .avatar{border:1px solid var(--border-light);background:#fff;padding:2px;}
.msg.bot .avatar img{width:100%;height:100%;border-radius:50%;object-fit:cover;}
.body{display:flex;flex-direction:column;gap:6px;max-width:100%; width: 100%;}
.msg.user .body{align-items:flex-end;}

.bubble{padding:16px 20px;font-size:15px;line-height:1.6;color:var(--text-main);position:relative;word-break:break-word;overflow-wrap:anywhere;}
.msg.user .bubble{background:var(--text-main);color:#ffffff;border-radius:20px 20px 4px 20px;box-shadow:var(--shadow-sm);}
.msg.bot .bubble{background:#ffffff;border:1px solid var(--border-light);border-radius:4px 20px 20px 20px;box-shadow:var(--shadow-sm);width:100%;}

.msg-actions{display:flex;gap:8px;margin-top:4px;padding-left:12px;opacity:0.7;transition:opacity 0.2s;}
.msg.bot:hover .msg-actions{opacity:1;}
.action-btn{background:var(--bg-secondary);border:1px solid var(--border-light);color:var(--text-main);font-size:12px;font-weight:500;cursor:pointer;display:flex;align-items:center;gap:6px;padding:6px 12px;border-radius:8px;transition:all 0.2s;}
.action-btn:hover{background:#e5e5ea;transform:translateY(-1px);}

.think-box {display: none;}

/* Markdown inside bubble */
.bubble p{margin-bottom:12px;}
.bubble p:last-child{margin-bottom:0;}
.bubble code{font-family:var(--font-mono);background:rgba(0,0,0,0.05);padding:3px 6px;border-radius:6px;font-size:0.85em;color:#e83e8c;}
.msg.user .bubble code{background:rgba(255,255,255,0.2);color:#fff;}
.bubble img{max-width:100%;border-radius:12px;margin:10px 0;box-shadow:var(--shadow-sm);border:1px solid var(--border-light);}
.bubble pre {background: #1d1d1f; color:#fff; padding:16px; border-radius:12px; overflow-x:auto;}
.bubble pre code {background: transparent; color:#fff;} 

.ws-trigger-card {background: var(--bg-secondary);border: 1px solid var(--border-light);border-radius: 12px;padding: 16px;margin: 12px 0;display: flex;align-items: center;justify-content: space-between;box-shadow: inset 0 1px 2px rgba(255,255,255,0.5);}
.ws-trigger-info {display: flex;align-items: center;gap: 12px;}
.ws-trigger-icon {width: 44px;height: 44px;border-radius: 10px;background: #fff;display: flex;align-items: center;justify-content: center;font-size: 22px;box-shadow: var(--shadow-sm);border: 1px solid var(--border-light);}
.ws-trigger-text h4 {font-size: 14px;font-weight: 600;margin-bottom: 2px;}
.ws-trigger-text p {font-size: 12px;color: var(--text-muted);font-family: var(--font-mono);text-transform: uppercase;}
.ws-btn {padding: 8px 16px;background: var(--text-main);color: #fff;border: none;border-radius: 8px;font-size: 13px;font-weight: 600;cursor: pointer;transition: all 0.2s;}
.ws-btn:hover {transform: scale(1.05); background: var(--accent);}

/* Typing & Cursor */
.blinking-cursor {display: inline-block; width: 8px; height: 16px; background: var(--accent); margin-left: 4px; animation: blink 1s step-end infinite; vertical-align: middle;}
@keyframes blink { 50% { opacity: 0; } }
.typing{display:flex;align-items:center;gap:6px;padding:4px;}
.typing span{width:6px;height:6px;border-radius:50%;background:var(--text-muted);opacity:0.4;animation:bounce 1.4s infinite ease-in-out both;}
.typing span:nth-child(1){animation-delay:-0.32s;}.typing span:nth-child(2){animation-delay:-0.16s;}
@keyframes bounce{0%,80%,100%{transform:scale(0);}40%{transform:scale(1);}}

.scroll-bottom-btn {position:absolute;bottom:120px;left:50%;width:44px;height:44px;border-radius:50%;background:var(--glass-bg);backdrop-filter:blur(10px);border:1px solid var(--border-light);box-shadow:var(--shadow-md);display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:18px;color:var(--text-main);opacity:0;pointer-events:none;transform:translateX(-50%) translateY(20px);transition:all 0.3s cubic-bezier(0.4, 0, 0.2, 1);z-index:20;}
.scroll-bottom-btn.show {opacity:1;pointer-events:auto;transform:translateX(-50%) translateY(0);}
.scroll-bottom-btn:hover {background:#fff;transform:translateX(-50%) translateY(-3px);box-shadow:var(--shadow-lg);}

/* --- INPUT AREA & ATTACHMENT MENU --- */
.input-container{flex-shrink:0; padding:10px 40px 24px; background:var(--bg-color); border-top:1px solid var(--border-light); position:relative; z-index:20;}
.input-wrap{display:flex;flex-direction:column;background:var(--glass-bg);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border:1px solid var(--border-light);border-radius:24px;box-shadow:var(--shadow-md);transition:box-shadow 0.3s, border-color 0.3s;}
.input-wrap:focus-within{border-color:var(--border-focus);box-shadow:0 12px 40px rgba(0,0,0,0.1), 0 0 0 3px rgba(255,153,51,0.1);}

.img-prev-inline{display:none;padding:12px 20px 0;align-items:center;gap:12px;}
.img-prev-inline.show{display:flex;animation:fadeIn 0.3s;}
.inline-th{width:40px;height:40px;object-fit:cover;border-radius:8px;border:1px solid var(--border-light); display:flex; justify-content:center; align-items:center; background:#f0f0f0; font-size:20px;}
.inline-info{flex:1;}
.inline-nm{font-size:12px;font-weight:600;color:var(--text-main);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:150px;}
.inline-rm{background:rgba(0,0,0,0.05);border:none;width:24px;height:24px;border-radius:50%;cursor:pointer;font-size:10px;display:flex;align-items:center;justify-content:center;transition:background 0.2s;}
.inline-rm:hover{background:#ff3b30;color:#fff;}

.input-row{display:flex;align-items:flex-end;gap:12px;padding:12px 16px 12px 20px;}
.chat-ta{flex:1;border:none;outline:none;background:transparent;font-family:var(--font-sans);font-size:15px;color:var(--text-main);line-height:1.5;resize:none;max-height:150px;min-height:24px;padding:8px 0;}
.chat-ta::placeholder{color:var(--text-muted);}

/* GEMINI STYLE ATTACHMENT MENU */
.attach-wrapper { position: relative; }
.attach-btn{width:38px;height:38px;border-radius:12px;background:transparent;border:1px solid transparent;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text-muted);transition:all 0.2s;position:relative;overflow:hidden;padding-bottom:4px;}
.attach-btn:hover{background:rgba(0,0,0,0.04);color:var(--text-main);}
.attach-btn svg{width:20px;height:20px;}
.attach-menu { position: absolute; bottom: 50px; left: 0; background: rgba(255,255,255,0.9); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border: 1px solid var(--border-light); border-radius: 16px; padding: 8px; box-shadow: var(--shadow-lg); display: none; flex-direction: column; gap: 4px; z-index: 100; min-width: 160px; transform: translateY(10px); opacity: 0; transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1); }
.attach-menu.show { display: flex; transform: translateY(0); opacity: 1; }
.attach-menu-item { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 10px; cursor: pointer; font-size: 14px; font-weight: 500; color: var(--text-main); transition: background 0.2s; }
.attach-menu-item:hover { background: rgba(0,0,0,0.05); }
.attach-menu-item span.icon { font-size: 16px; }

/* Hidden Inputs */
.hidden-file-input { display: none; }

.voice-btn.recording { color: #ff3b30; animation: pulseRecord 1.5s infinite; }
@keyframes pulseRecord { 0% { background: rgba(255,59,48,0.1); } 50% { background: rgba(255,59,48,0.3); } 100% { background: rgba(255,59,48,0.1); } }

.send-btn{width:42px;height:42px;border-radius:14px;border:none;background:linear-gradient(135deg, #FF9933 0%, #ffffff 50%, #138808 100%);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all 0.3s;box-shadow:0 4px 12px rgba(0,0,0,0.1);}
.send-btn svg{width:18px;height:18px;fill:#1d1d1f;transition:transform 0.2s;}
.send-btn:hover{box-shadow:0 6px 16px rgba(255,153,51,0.3);transform:translate(2px, -2px);}
.send-btn:disabled{opacity:0.4;cursor:not-allowed;filter:grayscale(100%);transform:none;}
.input-hint{text-align:center;font-size:11px;color:var(--text-muted);margin-top:12px;font-weight:500;}

/* --- WORKSPACE PANEL --- */
.ws-hdr{padding:14px 20px;border-bottom:1px solid var(--border-light);background:#fff;display:flex;align-items:center;justify-content:space-between;flex-shrink:0;}
.ws-title{font-size:14px;font-weight:600;display:flex;align-items:center;gap:8px;}
.ws-actions{display:flex;gap:8px;}
.ws-icon-btn{padding:6px 12px;border-radius:8px;background:var(--bg-secondary);border:1px solid var(--border-light);cursor:pointer;display:flex;align-items:center;gap:6px;color:var(--text-main);transition:all 0.2s;font-size:12px;font-weight:600;}
.ws-icon-btn:hover{background:#e5e5ea;}
.ws-close{padding:6px;background:transparent;border-color:transparent;}
.ws-close:hover{color:#ff3b30;background:#fff0f0;}
.ws-content{flex:1;overflow-y:auto;background:#fafafa;padding:20px;}
.ws-content pre{margin:0;padding:20px;background:#fff;border:1px solid var(--border-light);border-radius:12px;font-family:var(--font-mono);font-size:14px;line-height:1.6;overflow-x:auto;box-shadow:var(--shadow-sm);}

/* --- AUTH MODAL (GAS) --- */
.modal-overlay { position: fixed; inset: 0; background: rgba(255,255,255,0.85); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); z-index: 5000; display: none; justify-content: center; align-items: center; animation: fadeIn 0.3s ease; }
.modal-card { background: #fff; padding: 32px 36px; border-radius: 24px; width: 90%; max-width: 420px; border: 1px solid var(--border-light); box-shadow: var(--shadow-lg); position: relative; }
.close-modal { position: absolute; top: 20px; right: 20px; background: none; border: none; font-size: 24px; color: var(--text-muted); cursor: pointer; transition: 0.2s;}
.close-modal:hover { color: var(--text-main); transform: rotate(90deg); }
.auth-header { text-align: center; margin-bottom: 24px; }
.auth-header h2 { font-family: var(--font-sans); font-size: 24px; font-weight: 800; color: var(--text-main); }
.auth-tabs { display: flex; background: var(--bg-secondary); padding: 4px; border-radius: 12px; margin-bottom: 24px; }
.auth-tab { flex: 1; padding: 10px; text-align: center; border-radius: 8px; font-size: 14px; font-weight: 700; color: var(--text-muted); cursor: pointer; transition: 0.3s; }
.auth-tab.active { background: #fff; color: var(--text-main); box-shadow: var(--shadow-sm); }
.auth-step { display: none; flex-direction: column; animation: slideIn 0.3s ease; }
.auth-step.active { display: flex; }
.input-group { margin-bottom: 16px; }
.modal-card input { width: 100%; padding: 14px 16px; border: 1px solid var(--border-light); border-radius: 12px; font-size: 15px; outline: none; background: #fafafa; transition: 0.3s; font-family: var(--font-sans); }
.modal-card input:focus { border-color: var(--text-main); background: #fff; box-shadow: 0 4px 12px rgba(0,0,0,0.05); }
.primary-btn { width: 100%; padding: 14px; background: var(--text-main); color: #fff; border: none; border-radius: 12px; font-size: 15px; font-weight: 600; cursor: pointer; transition: 0.2s; margin-top: 8px; }
.primary-btn:hover { background: #333; transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.secondary-btn { width: 100%; padding: 12px; background: transparent; color: var(--text-muted); border: none; font-size: 14px; font-weight: 600; cursor: pointer; margin-top: 4px; }
.secondary-btn:hover { color: var(--text-main); }

@media(max-width:850px){
  .sidebar{position:absolute;left:-280px;z-index:100;height:100%;transition:left 0.3s ease;}
  .sidebar.show{left:0;box-shadow:var(--shadow-lg);}
  .mobile-menu-btn { display: block; }
  .close-sidebar-btn { display: block; }
  .workspace.open{position:absolute;top:0;left:0;width:100%;height:100%;z-index:50;}
  .messages{padding:20px;}
  .input-container{padding:10px 15px 15px;}
  .msg{max-width:95%;}
  .scroll-bottom-btn{bottom:110px;}
}
</style>
</head>
<body>

<div id="toast-container"></div>

<div class="welcome-overlay" id="welcomeOverlay">
    <img src="https://i.ibb.co/0y2sdbq6/PT-20260523-133251-0000.png" alt="Arjun Logo">
    <h1>Welcome to Arjun 2.O</h1>
    <p>Developed by Abhay Kumar. Experience advanced reasoning, secure workspace coding, and high-quality image generation in one place.</p>
    <button class="start-btn" onclick="startArjunApp()">Get Started</button>
</div>

<div class="bg"><div class="orb orb1"></div><div class="orb orb2"></div></div>

<div class="shell">
  <aside class="sidebar" id="sidebar">
    <div class="logo-area">
      <div class="logo-row">
        <img src="https://i.ibb.co/0y2sdbq6/PT-20260523-133251-0000.png" alt="Arjun Logo" class="logo-img">
        <div class="logo-text">
          <div class="logo-name">ARJUN 2.O</div>
          <div class="logo-sub">Advanced Edition</div>
        </div>
      </div>
      <button class="close-sidebar-btn" onclick="toggleSidebar()">βœ•</button>
    </div>
    
    <div class="auth-block">
        <button id="loginPromptBtn" class="login-prompt-btn" onclick="openAuthModal()">πŸ”’ Secure Login</button>
        <div id="userProfile" class="user-profile">
            <div class="user-avatar" id="uAvatar">U</div>
            <div class="user-email" id="uEmail">user@email.com</div>
            <button class="logout-btn" onclick="logout()" title="Logout">πŸšͺ</button>
        </div>
    </div>

    <div class="settings">
      <div class="brand-box">
          <img src="https://i.ibb.co/0y2sdbq6/PT-20260523-133251-0000.png" alt="Arjun Identity">
          <h3>Arjun 2.O</h3>
          <p>DEVELOPED BY ABHAY KUMAR</p>
      </div>
      <button class="clear-btn" onclick="clearMemory()">πŸ—‘οΈ Clear Chat Memory</button>
    </div>
  </aside>

  <div class="main-wrapper">
    <main class="chat-main" id="chatMain">
      <header class="chat-hdr">
        <button class="mobile-menu-btn" onclick="toggleSidebar()">☰</button>
        <div class="model-badge">
          <div class="status-dot"></div>
          Arjun Intelligence
        </div>
        <div style="width:24px;"></div>
      </header>

      <div class="messages" id="msgs" onscroll="checkScroll()">
        <div class="welcome" id="welcome">
          <img src="https://i.ibb.co/0y2sdbq6/PT-20260523-133251-0000.png" alt="Arjun Logo" class="welcome-logo">
          <div class="welcome-title">Welcome, User!</div>
          <div class="welcome-sub">I am Arjun 2.O, developed by Abhay Kumar. I am equipped with advanced intelligence, workspace coding, and image generation.</div>
          <div id="guestBadge" class="guest-badge">Guest Mode: <span id="guestCountDisplay">0</span>/3 Queries Used.</div>
          <div class="ex-grid">
            <div class="ex-card" onclick="sendEx('Write a python script for a simple HTTP server. Provide the code.')">
              <div class="ex-title">πŸ’» Code Generation</div>
              <div class="ex-desc">Generate secure, workspace-ready code</div>
            </div>
            <div class="ex-card" onclick="sendEx('Create an image of a futuristic Indian city with flying cars, highly detailed, 8k resolution.')">
              <div class="ex-title">🎨 Generate Images</div>
              <div class="ex-desc">Stunning visuals using Pollinations AI</div>
            </div>
          </div>
        </div>
      </div>

      <button class="scroll-bottom-btn" id="scrollBtn" onclick="forceScrollDown()">
        <svg width="22" height="22" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M12 5v14M19 12l-7 7-7-7"/></svg>
      </button>

      <div class="input-container">
        <div class="input-wrap">
          <div class="img-prev-inline" id="imgPrev">
            <img class="inline-th" id="imgThumb" src="" style="display:none;">
            <div class="inline-th" id="fileIcon" style="display:none;">πŸ“„</div>
            <div class="inline-info">
              <div class="inline-nm" id="imgName">file.txt</div>
            </div>
            <button class="inline-rm" onclick="removeImg()">βœ•</button>
          </div>

          <div class="input-row">
            
            <!-- GEMINI STYLE ATTACHMENT MENU -->
            <div class="attach-wrapper">
              <button class="attach-btn" id="attachToggleBtn" onclick="toggleAttachMenu()" title="Attach File">
                <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M21.44 11.05l-9.19 9.19a6 6 0 0 1-8.49-8.49l9.19-9.19a4 4 0 0 1 5.66 5.66l-9.2 9.19a2 2 0 0 1-2.83-2.83l8.49-8.48"></path></svg>
              </button>
              
              <div class="attach-menu" id="attachMenu">
                <div class="attach-menu-item" onclick="triggerInput('image')"><span class="icon">πŸ–ΌοΈ</span> Image</div>
                <div class="attach-menu-item" onclick="triggerInput('video')"><span class="icon">πŸŽ₯</span> Video</div>
                <div class="attach-menu-item" onclick="triggerInput('audio')"><span class="icon">🎡</span> Audio</div>
                <div class="attach-menu-item" onclick="triggerInput('document')"><span class="icon">πŸ“„</span> Document / Code</div>
              </div>
              
              <!-- Hidden Inputs for strict validation -->
              <input type="file" id="inp-image" class="hidden-file-input" accept="image/*" onchange="handleSpecificFile(this, 'image')">
              <input type="file" id="inp-video" class="hidden-file-input" accept="video/*" onchange="handleSpecificFile(this, 'video')">
              <input type="file" id="inp-audio" class="hidden-file-input" accept="audio/*" onchange="handleSpecificFile(this, 'audio')">
              <input type="file" id="inp-document" class="hidden-file-input" accept=".pdf,.doc,.docx,.txt,.md,.csv,.json,.py,.js,.html,.css,.cpp,.c" onchange="handleSpecificFile(this, 'document')">
            </div>
            
            <button class="attach-btn voice-btn" id="voiceBtn" onclick="toggleVoice()" title="Voice Input">
              <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M12 2a3 3 0 0 0-3 3v7a3 3 0 0 0 6 0V5a3 3 0 0 0-3-3Z"></path><path d="M19 10v2a7 7 0 0 1-14 0v-2"></path><line x1="12" x2="12" y1="19" y2="22"></line></svg>
            </button>

            <textarea class="chat-ta" id="chatInput" placeholder="Message Arjun 2.O..." rows="1" onkeydown="handleKey(event)" oninput="autoGrow(this)"></textarea>
            
            <button class="send-btn" id="sendBtn" onclick="sendMsg()">
              <svg viewBox="0 0 24 24"><path d="M2.01 21L23 12 2.01 3 2 10l15 2-15 2z"/></svg>
            </button>
          </div>
        </div>
        <div class="input-hint">Arjun 2.O is engineered for extreme performance. Developed by Abhay Kumar.</div>
      </div>
    </main>

    <aside class="workspace" id="workspace">
      <div class="ws-hdr">
        <div class="ws-title"><span>πŸ’»</span><span id="wsTitleText">Generated Code</span></div>
        <div class="ws-actions">
          <button class="ws-icon-btn" onclick="copyWorkspaceCode()" id="wsCopyBtn">πŸ“‹ Copy</button>
          <button class="ws-icon-btn ws-close" onclick="closeWorkspace()" title="Close">βœ•</button>
        </div>
      </div>
      <div class="ws-content">
        <pre><code id="wsCodeBlock" class="hljs"></code></pre>
      </div>
    </aside>
  </div>
</div>

<div class="modal-overlay" id="authModal">
  <div class="modal-card">
    <button class="close-modal" onclick="closeAuthModal()">βœ•</button>
    <div class="auth-header"><h2>Arjun Network</h2></div>
    <div class="auth-tabs">
      <div class="auth-tab active" id="tab-login" onclick="switchAuthTab('login')">Login</div>
      <div class="auth-tab" id="tab-register" onclick="switchAuthTab('register')">Register</div>
    </div>
    <div id="flow-login">
      <div class="auth-step active" id="log-step-1">
        <div class="input-group"><input type="email" id="logEmail" placeholder="Registered Email"></div>
        <button class="primary-btn" id="btn-log-otp" onclick="processAuth('login_send_otp')">Get Secure OTP</button>
      </div>
      <div class="auth-step" id="log-step-2">
        <div class="input-group"><input type="number" id="logOTP" placeholder="Enter OTP"></div>
        <button class="primary-btn" id="btn-log-verify" onclick="processAuth('login_verify')">Verify & Login</button>
        <button class="secondary-btn" onclick="switchAuthStep('log-step-2', 'log-step-1')">Back</button>
      </div>
    </div>
    <div id="flow-register" style="display:none;">
      <div class="auth-step active" id="reg-step-1">
        <div class="input-group"><input type="text" id="regName" placeholder="Full Name"></div>
        <div class="input-group"><input type="email" id="regEmail" placeholder="Email Address"></div>
        <button class="primary-btn" id="btn-reg-otp" onclick="processAuth('register_send_otp')">Send OTP</button>
      </div>
      <div class="auth-step" id="reg-step-2">
        <div class="input-group"><input type="number" id="regOTP" placeholder="Enter Verification OTP"></div>
        <button class="primary-btn" id="btn-reg-verify" onclick="processAuth('register_verify')">Create Account</button>
        <button class="secondary-btn" onclick="switchAuthStep('reg-step-2', 'reg-step-1')">Back</button>
      </div>
    </div>
  </div>
</div>

<script>
// --- PDF.JS INITIALIZATION ---
pdfjsLib.GlobalWorkerOptions.workerSrc = 'https://cdnjs.cloudflare.com/ajax/libs/pdf.js/3.11.174/pdf.worker.min.js';

const GAS_URL = "https://script.google.com/macros/s/AKfycbzTsXGoVh97JjtFAAG825GF4WUZqf7FDB3Zbxyf0nrLXt_1HjJSSqA829UcdoamRPvg0A/exec";
const LOGO_URL = "https://i.ibb.co/0y2sdbq6/PT-20260523-133251-0000.png";

let currentUser = localStorage.getItem('arjun_user');
let guestCount = parseInt(localStorage.getItem('arjun_guest') || '0');
window.isStreamingGlobalFlag = false;

const S = { history: [], pending: null, busy: false, isUserScrolling: false, codeBlocks: [], currentWorkspaceId: null };

document.addEventListener('DOMContentLoaded', () => {
    if(!localStorage.getItem('arjun_welcome_seen')) { document.getElementById('welcomeOverlay').style.display = 'flex'; } 
    else { document.getElementById('welcomeOverlay').style.display = 'none'; }
    updateAuthUI();
    if(currentUser) { fetchHistoryFromGAS(); } 
    else { document.getElementById('guestBadge').style.display = 'inline-block'; document.getElementById('guestCountDisplay').innerText = guestCount; }
});

function startArjunApp() {
    const overlay = document.getElementById('welcomeOverlay');
    overlay.classList.add('hidden');
    localStorage.setItem('arjun_welcome_seen', 'true');
    setTimeout(() => { overlay.style.display = 'none'; }, 400);
}

function toggleSidebar() { document.getElementById('sidebar').classList.toggle('show'); }
function showToast(msg) {
    const container = document.getElementById('toast-container');
    const t = document.createElement('div'); t.className = 'toast'; t.innerText = msg;
    container.appendChild(t); setTimeout(() => t.remove(), 3000);
}

// --- VOICE RECOGNITION (SMART HINDI/ENGLISH) ---
const SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
let recognition = null; let isRecording = false;

if (SpeechRecognition) {
    recognition = new SpeechRecognition();
    recognition.continuous = false; 
    recognition.interimResults = false;
    
    // Set to 'hi-IN'. Google will type pure Hindi in Devanagari and English words in English.
    recognition.lang = 'hi-IN'; 
    
    recognition.onstart = () => { isRecording = true; document.getElementById('voiceBtn').classList.add('recording'); };
    recognition.onresult = (event) => {
        let transcript = '';
        for (let i = event.resultIndex; i < event.results.length; ++i) transcript += event.results[i][0].transcript; 
        transcript = transcript.trim();
        if(transcript.length > 0) {
            transcript = transcript.charAt(0).toUpperCase() + transcript.slice(1);
            if (!/[.!?ΰ₯€]$/.test(transcript)) transcript += '.'; transcript += ' ';
        }
        const inp = document.getElementById('chatInput');
        inp.value = (inp.value + ' ' + transcript).trim(); 
        autoGrow(inp);
    };
    recognition.onend = () => { isRecording = false; document.getElementById('voiceBtn').classList.remove('recording'); };
    recognition.onerror = () => { showToast("Voice recognition failed."); };
}
function toggleVoice() {
    if(!recognition) return showToast("Voice input not supported in this browser.");
    if(isRecording) recognition.stop(); else recognition.start();
}

// --- AUTH & HISTORY FUNCTIONS (UNCHANGED) ---
function updateAuthUI() { /*...*/ if (currentUser) { document.getElementById('loginPromptBtn').style.display = 'none'; document.getElementById('userProfile').style.display = 'flex'; document.getElementById('uEmail').innerText = currentUser; document.getElementById('uAvatar').innerText = currentUser.charAt(0).toUpperCase(); document.getElementById('guestBadge').style.display = 'none'; } else { document.getElementById('loginPromptBtn').style.display = 'flex'; document.getElementById('userProfile').style.display = 'none'; } }
function openAuthModal() { document.getElementById('authModal').style.display = 'flex'; }
function closeAuthModal() { document.getElementById('authModal').style.display = 'none'; }
function switchAuthTab(tab) { document.querySelectorAll('.auth-tab').forEach(e => e.classList.remove('active')); document.getElementById(`tab-${tab}`).classList.add('active'); document.getElementById('flow-login').style.display = tab === 'login' ? 'block' : 'none'; document.getElementById('flow-register').style.display = tab === 'register' ? 'block' : 'none'; }
function switchAuthStep(curr, next) { document.getElementById(curr).classList.remove('active'); document.getElementById(next).classList.add('active'); }
async function processAuth(action) { /*...*/ let payload = { action }; let btnId = ''; if (action === 'register_send_otp') { payload.name = document.getElementById('regName').value.trim(); payload.email = document.getElementById('regEmail').value.trim(); payload.phone = "0000000000"; payload.organization = "Arjun Compound"; if(!payload.email || !payload.name) return showToast("Name and Email required."); btnId = 'btn-reg-otp'; } else if (action === 'login_send_otp') { payload.email = document.getElementById('logEmail').value.trim(); if(!payload.email) return showToast("Enter email first."); btnId = 'btn-log-otp'; } else if (action === 'register_verify' || action === 'login_verify') { payload.email = document.getElementById(action === 'register_verify' ? 'regEmail' : 'logEmail').value.trim(); payload.otp = document.getElementById(action === 'register_verify' ? 'regOTP' : 'logOTP').value.trim(); if(!payload.otp) return showToast("Enter OTP!"); btnId = action === 'register_verify' ? 'btn-reg-verify' : 'btn-log-verify'; } const btn = document.getElementById(btnId); const ogText = btn.innerHTML; btn.disabled = true; btn.innerText = 'Processing...'; try { const res = await fetch(GAS_URL, { method: 'POST', body: JSON.stringify(payload) }); const data = await res.json(); if (data.status === 'success') { showToast(data.message); if (action === 'register_send_otp') switchAuthStep('reg-step-1', 'reg-step-2'); else if (action === 'login_send_otp') switchAuthStep('log-step-1', 'log-step-2'); else if (action === 'register_verify' || action === 'login_verify') { currentUser = payload.email; localStorage.setItem('arjun_user', currentUser); closeAuthModal(); updateAuthUI(); fetchHistoryFromGAS(); } } else showToast(data.message); } catch (e) { showToast("Network Error."); } btn.disabled = false; btn.innerHTML = ogText; }
function logout() { localStorage.removeItem('arjun_user'); location.reload(); }
async function clearMemory() { if(currentUser) { showToast("Clearing Cloud History..."); await fetch(GAS_URL, { method: 'POST', body: JSON.stringify({ action: "delete_history", email: currentUser }) }); } location.reload(); }
async function fetchHistoryFromGAS() { const m = document.getElementById('msgs'); document.getElementById('welcome').style.display = 'none'; m.innerHTML = '<div style="text-align:center; padding:40px; color:var(--text-muted);">Syncing Secure Data...</div>'; try { const res = await fetch(GAS_URL, { method: 'POST', body: JSON.stringify({ action: "get_history", email: currentUser }) }); const data = await res.json(); m.innerHTML = ''; if (data.status === 'success' && data.historyJSON !== "[]") { S.history = JSON.parse(data.historyJSON); S.history.forEach(msg => { if(msg.role === 'user') appendUserDOM(msg.content, msg.badge); else { window.isStreamingGlobalFlag = false; appendBotDOM(msg.content, true); } }); setTimeout(forceScrollDown, 100); } else { document.getElementById('welcome').style.display = 'flex'; } } catch(e) { m.innerHTML = ''; document.getElementById('welcome').style.display = 'flex'; } }
function syncHistory() { if(currentUser) { fetch(GAS_URL, { method: 'POST', body: JSON.stringify({ action: "save_history", email: currentUser, historyJSON: JSON.stringify(S.history) }) }); } }

// --- ADVANCED MULTI-FILE & CONVERTER LOGIC ---
function toggleAttachMenu() {
    const menu = document.getElementById('attachMenu');
    menu.classList.toggle('show');
}
// Hide menu when clicked outside
document.addEventListener('click', function(event) {
    const wrapper = document.querySelector('.attach-wrapper');
    if (!wrapper.contains(event.target)) { document.getElementById('attachMenu').classList.remove('show'); }
});

function triggerInput(type) {
    document.getElementById('attachMenu').classList.remove('show');
    document.getElementById('inp-' + type).click();
}

async function handleSpecificFile(input, expectedType) {
    const file = input.files[0]; if(!file) return;
    const fileName = file.name.toLowerCase();
    const fileMime = file.type;
    
    // 1. STRICT VALIDATION & INVALID FORMAT TOAST
    if (expectedType === 'image' && !fileMime.startsWith('image/')) { showToast("Invalid Format! Please select an Image file."); input.value=''; return; }
    if (expectedType === 'video' && !fileMime.startsWith('video/')) { showToast("Invalid Format! Please select a Video file."); input.value=''; return; }
    if (expectedType === 'audio' && !fileMime.startsWith('audio/')) { showToast("Invalid Format! Please select an Audio file."); input.value=''; return; }
    
    document.getElementById('imgThumb').style.display = 'none';
    document.getElementById('fileIcon').style.display = 'none';
    document.getElementById('imgName').textContent = file.name;
    document.getElementById('imgPrev').classList.add('show');
    
    showToast(`Processing ${file.name}...`);
    
    const reader = new FileReader();

    // 2. IMAGE, VIDEO, AUDIO (Send as Base64 Media to Model)
    if (expectedType === 'image') {
        reader.onload = e => {
            S.pending = { type: 'image', data: e.target.result.split(',')[1], name: file.name };
            document.getElementById('imgThumb').src = e.target.result;
            document.getElementById('imgThumb').style.display = 'flex';
        };
        reader.readAsDataURL(file);
    } 
    else if (expectedType === 'video' || expectedType === 'audio') {
        reader.onload = e => {
            S.pending = { type: expectedType, data: e.target.result.split(',')[1], name: file.name };
            document.getElementById('fileIcon').textContent = expectedType === 'video' ? 'πŸŽ₯' : '🎡';
            document.getElementById('fileIcon').style.display = 'flex';
        };
        reader.readAsDataURL(file);
    }
    // 3. DOCUMENT / CODE (Convert everything to TEXT before sending to Model)
    else if (expectedType === 'document') {
        document.getElementById('fileIcon').textContent = 'πŸ“„';
        document.getElementById('fileIcon').style.display = 'flex';
        
        // A. Handle PDF -> Text via pdf.js
        if (fileName.endsWith('.pdf')) {
            reader.onload = async function() {
                try {
                    const typedarray = new Uint8Array(this.result);
                    const pdf = await pdfjsLib.getDocument(typedarray).promise;
                    let fullText = "";
                    for (let i = 1; i <= pdf.numPages; i++) {
                        const page = await pdf.getPage(i);
                        const textContent = await page.getTextContent();
                        fullText += textContent.items.map(s => s.str).join(' ') + "\n";
                    }
                    S.pending = { type: 'text', data: fullText.trim() || "No text found in PDF.", name: file.name };
                    showToast("PDF converted to text successfully!");
                } catch (e) { showToast("Error parsing PDF."); removeImg(); }
            };
            reader.readAsArrayBuffer(file);
        }
        // B. Handle Word (.docx) -> Text via Mammoth.js
        else if (fileName.endsWith('.docx')) {
            reader.onload = async function() {
                try {
                    const arrayBuffer = this.result;
                    const result = await mammoth.extractRawText({arrayBuffer: arrayBuffer});
                    S.pending = { type: 'text', data: result.value.trim() || "No text found in DOCX.", name: file.name };
                    showToast("Word document converted to text!");
                } catch(e) { showToast("Error parsing Word doc."); removeImg(); }
            };
            reader.readAsArrayBuffer(file);
        }
        // C. Handle HTML/Code/Text (.py, .js, .html, .csv etc) -> Text naturally
        else {
            reader.onload = e => {
                S.pending = { type: 'text', data: e.target.result, name: file.name };
                showToast("Code/Text file attached!");
            };
            reader.readAsText(file);
        }
    }
    input.value = ''; // reset
}

function removeImg(){ S.pending=null; document.getElementById('imgPrev').classList.remove('show'); }

// --- UI INTERACTIONS ---
function handleKey(e){if(e.key==='Enter'&&!e.shiftKey){e.preventDefault();sendMsg();}}
function autoGrow(el){el.style.height='auto';el.style.height=Math.min(el.scrollHeight,200)+'px';}
function checkScroll() { const m = document.getElementById('msgs'); const isAtBottom = Math.abs((m.scrollHeight - m.scrollTop) - m.clientHeight) < 80; S.isUserScrolling = !isAtBottom; const btn = document.getElementById('scrollBtn'); if(S.isUserScrolling) btn.classList.add('show'); else btn.classList.remove('show'); }
function forceScrollDown(){ const m=document.getElementById('msgs'); m.scrollTo({top: m.scrollHeight, behavior: 'smooth'}); S.isUserScrolling = false; document.getElementById('scrollBtn').classList.remove('show'); }
function autoScroll() { if(!S.isUserScrolling) { const m=document.getElementById('msgs'); m.scrollTop = m.scrollHeight; } }
function copyText(btn, text) { navigator.clipboard.writeText(text); const orig = btn.innerHTML; btn.innerHTML = "βœ“ Copied"; setTimeout(() => btn.innerHTML = orig, 2000); }
function copyWorkspaceCode() { if(S.currentWorkspaceId !== null) { navigator.clipboard.writeText(S.codeBlocks[S.currentWorkspaceId].code); const btn = document.getElementById('wsCopyBtn'); const orig = btn.innerHTML; btn.innerHTML = "βœ“ Copied"; setTimeout(() => btn.innerHTML = orig, 2000); } }

// --- WORKSPACE LOGIC ---
function openWorkspace(id) { S.currentWorkspaceId = id; const block = S.codeBlocks[id]; document.getElementById('wsTitleText').textContent = block.lang ? `Generated ${block.lang.toUpperCase()}` : "Generated Code"; const codeBlock = document.getElementById('wsCodeBlock'); codeBlock.className = `hljs language-${block.lang || 'plaintext'}`; codeBlock.textContent = block.code; hljs.highlightElement(codeBlock); document.getElementById('workspace').classList.add('open'); if(window.innerWidth <= 850) { document.getElementById('sidebar').classList.remove('show'); } }
function closeWorkspace() { document.getElementById('workspace').classList.remove('open'); }
const renderer = new marked.Renderer();
renderer.code = function(token) {
  const codeText = typeof token === 'string' ? token : (token.text || '');
  const language = typeof token === 'string' ? arguments[1] : (token.lang || '');
  if (window.isStreamingGlobalFlag) { return `<pre><code class="language-${language}">${codeText.replace(/</g, '&lt;').replace(/>/g, '&gt;')}</code></pre>`; }
  const id = S.codeBlocks.length; S.codeBlocks.push({ code: codeText, lang: language });
  return `<div class="ws-trigger-card"><div class="ws-trigger-info"><div class="ws-trigger-icon">πŸ’»</div><div class="ws-trigger-text"><h4>Code Generated</h4><p>${language || 'Snippet'}</p></div></div><button class="ws-btn" onclick="openWorkspace(${id})">View in Workspace</button></div>`;
};
marked.use({ renderer });

function parseThinking(raw) {
    const thinkRegex = /<think>([\s\S]*?)(<\/think>|$)/gi;
    let text = raw, thinkContent = '';
    text = text.replace(thinkRegex, (match, p1) => { thinkContent += p1; return ''; });
    return { mainText: text.trim(), thinkText: thinkContent.trim() };
}

// --- MAIN CHAT LOGIC ---
async function sendMsg(){
  if(S.busy)return;
  const inp=document.getElementById('chatInput');
  const msg=inp.value.trim();if(!msg && !S.pending)return;

  if (!currentUser) {
    if (guestCount >= 3) { openAuthModal(); return showToast("Guest limit reached. Please Login."); }
    guestCount++; localStorage.setItem('arjun_guest', guestCount.toString());
    document.getElementById('guestCountDisplay').innerText = guestCount;
  }

  inp.value='';inp.style.height='auto';
  document.getElementById('sendBtn').disabled=true;
  S.busy=true;
  
  const w=document.getElementById('welcome');
  if(w)w.style.display='none';

  let backendPayloadMsg = msg;
  let attachments = [];
  let badge = null;

  if(S.pending) {
      if(S.pending.type === 'text') {
          // Send Extracted Code/PDF text
          backendPayloadMsg = `[Attached File Data: ${S.pending.name}]\n${S.pending.data}\n\nUser Question: ${msg}`;
          badge = 'πŸ“„ '+S.pending.name;
      } else {
          // Send raw media data for Image, Audio, Video
          attachments.push({ type: S.pending.type, data: S.pending.data, name: S.pending.name });
          const icon = S.pending.type === 'video' ? 'πŸŽ₯ ' : (S.pending.type === 'audio' ? '🎡 ' : 'πŸ–ΌοΈ ');
          badge = icon + S.pending.name;
      }
      appendUserDOM(msg || '[File Attached]', badge);
      S.history.push({role: 'user', content: backendPayloadMsg, badge: badge});
  } else {
      appendUserDOM(msg);
      S.history.push({role: 'user', content: msg});
  }
  
  removeImg(); syncHistory();

  const botDiv = document.createElement('div');botDiv.className='msg bot';
  botDiv.innerHTML=`<div class="avatar"><img src="${LOGO_URL}"></div><div class="body"><div class="bubble"><div class="typing"><span></span><span></span><span></span></div></div></div>`;
  document.getElementById('msgs').appendChild(botDiv);
  forceScrollDown();

  const sysPrompt = `You are Arjun 2.O, a state-of-the-art AI assistant developed by Abhay Kumar.
  LANGUAGE PROTOCOL: You are fully bilingual. You MUST write and respond fluently in BOTH English and Hindi.
  1. If the user asks in English, reply entirely in English.
  2. If the user asks in Hindi, reply in Hindi.
  3. If the user uses a mix (Hinglish), you can respond naturally in the same mixed tone.
  NEVER force Hindi when the user is speaking English. Always adapt dynamically to the user's language.
  
  CRITICAL IMAGE GENERATION PROTOCOL:
  If the user asks to generate, create, or draw an image/photo, you MUST generate the image by responding with a markdown image tag using Pollinations AI.
  Format to use: ![Arjun 2.O is creating your image...](https://image.pollinations.ai/prompt/{URL_ENCODED_PROMPT}?width=1024&height=1024&nologo=true&model={MODEL})
  Available models for {MODEL}: flux, flux-realism, flux-anime, flux-3d.
  Choose the best model based on the prompt. Example: if user says anime, use flux-anime.
  Always include this markdown tag when image generation is requested.`;
  
  const cleanHistory = S.history.slice(0, -1).map(item => ({ role: item.role, content: item.content }));

  const payload = {
      message: backendPayloadMsg,
      attachments: attachments,
      system_prompt: sysPrompt,
      history: cleanHistory,
      max_tokens: 4096,
      temperature: 0.7
  };

  try{
    const res = await fetch('/api/chat', { method: 'POST', headers: {'Content-Type': 'application/json'}, body: JSON.stringify(payload) });
    if (!res.ok) throw new Error("Server error");
    const reader = res.body.getReader(); const decoder = new TextDecoder();
    let accumulatedText = "";
    window.isStreamingGlobalFlag = true; 
    while (true) {
        const { done, value } = await reader.read();
        if (done) break;
        const chunk = decoder.decode(value, {stream: true});
        const lines = chunk.split('\n');
        for (let line of lines) {
            if (line.startsWith('data: ')) {
                const dataStr = line.substring(6);
                if (dataStr.trim() === '[DONE]') continue;
                try {
                    const dataObj = JSON.parse(dataStr);
                    if (dataObj.choices && dataObj.choices[0].delta.content) {
                        accumulatedText += dataObj.choices[0].delta.content;
                        renderBotText(botDiv, accumulatedText, true); autoScroll();
                    }
                } catch (e) { }
            }
        }
    }
    window.isStreamingGlobalFlag = false; 
    renderBotText(botDiv, accumulatedText, false);
    S.history.push({role: 'bot', content: accumulatedText});
    syncHistory();
  }catch(err){ window.isStreamingGlobalFlag = false; renderBotText(botDiv,`**Error:** Server communication failed.`, false); }
  S.busy=false; document.getElementById('sendBtn').disabled=false; autoScroll();
}

function sendEx(t){document.getElementById('chatInput').value=t;sendMsg();}
function appendUserDOM(text, badgeText){ let bHtml = badgeText ? `<div style="font-size:11px;color:var(--accent);margin-bottom:4px;font-weight:600;">${esc(badgeText)}</div>` : ''; const el=document.createElement('div');el.className='msg user'; el.innerHTML=`<div class="avatar">U</div><div class="body">${bHtml}<div class="bubble">${esc(text)}</div></div>`; document.getElementById('msgs').appendChild(el); }
function appendBotDOM(content, isHistoryLoading=false) { const el=document.createElement('div');el.className='msg bot'; el.innerHTML=`<div class="avatar"><img src="${LOGO_URL}"></div><div class="body"><div class="bubble"></div></div>`; document.getElementById('msgs').appendChild(el); renderBotText(el, content, !isHistoryLoading); }
function renderBotText(el, raw, isStreaming) { const b = el.querySelector('.bubble'); const { mainText, thinkText } = parseThinking(raw); let html = ''; if (thinkText) { html += `<div class="think-box"><div class="think-title">🧠 Reasoning Process</div>${esc(thinkText)}</div>`; } html += marked.parse(mainText); if(isStreaming) { html += '<span class="blinking-cursor"></span>'; } b.innerHTML = html; let actionsDiv = el.querySelector('.msg-actions'); if(!isStreaming && !actionsDiv && mainText.trim().length > 0) { const cleanRaw = mainText.replace(/"/g, '&quot;').replace(/'/g, "\\'").replace(/\n/g, '\\n'); const actionsHTML = `<div class="msg-actions"><button class="action-btn" onclick="copyText(this, \`${cleanRaw}\`)"><svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><rect x="9" y="9" width="13" height="13" rx="2" ry="2"></rect><path d="M5 15H4a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2h9a2 2 0 0 1 2 2v1"></path></svg> Copy Text</button></div>`; el.querySelector('.body').insertAdjacentHTML('beforeend', actionsHTML); } }
function esc(t){return t.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');}
</script>
</body>
</html>