PrepStudio/demo-script.html at main · electro-geek/PrepStudio · GitHub

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
750
751
752
753
754
755
756
757
758
759
760
761
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>PrepStudio — Demo Script</title>
<link rel="preconnect" href="https://fonts.googleapis.com" />
<link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap" rel="stylesheet" />
<style>
  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

  :root {
    --bg: #080d17;
    --surface: #0f172a;
    --border: rgba(99,102,241,0.15);
    --indigo: #6366f1;
    --indigo-light: #818cf8;
    --violet: #8b5cf6;
    --slate-400: #94a3b8;
    --slate-500: #64748b;
    --white: #f8fafc;
    --emerald: #34d399;
    --amber: #fbbf24;
  }

  html, body {
    height: 100%;
    font-family: 'Inter', sans-serif;
    background: var(--bg);
    color: var(--white);
    overflow: hidden;
    user-select: none;
  }

  /* ── Progress bar ── */
  #progress-bar {
    position: fixed;
    top: 0; left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--indigo), var(--violet));
    transition: width 0.4s cubic-bezier(.4,0,.2,1);
    z-index: 100;
    box-shadow: 0 0 12px rgba(99,102,241,0.6);
  }

  /* ── Header strip ── */
  #header {
    position: fixed;
    top: 0; left: 0; right: 0;
    padding: 20px 40px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 50;
  }

  #brand {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--indigo-light);
    opacity: 0.7;
  }

  #slide-counter {
    font-size: 11px;
    font-weight: 600;
    color: var(--slate-500);
    letter-spacing: 0.1em;
  }

  /* ── Timer ── */
  #timer {
    position: fixed;
    bottom: 28px;
    right: 40px;
    font-size: 13px;
    font-weight: 700;
    color: var(--slate-500);
    letter-spacing: 0.08em;
    z-index: 50;
    display: flex;
    align-items: center;
    gap: 8px;
  }

  #timer-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--emerald);
    animation: pulse 1.5s infinite;
  }

  @keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(0.8); }
  }

  /* ── Nav hints ── */
  #nav-hint {
    position: fixed;
    bottom: 28px;
    left: 40px;
    font-size: 11px;
    color: var(--slate-500);
    letter-spacing: 0.05em;
    z-index: 50;
  }

  /* ── Slide wrapper ── */
  #slide-viewport {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px 80px 80px;
  }

  .slide {
    display: none;
    flex-direction: column;
    justify-content: center;
    width: 100%;
    max-width: 860px;
    animation: fadeIn 0.35s ease;
  }

  .slide.active {
    display: flex;
  }

  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
  }

  /* ── Slide number badge ── */
  .slide-num {
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--indigo);
    margin-bottom: 18px;
    opacity: 0.7;
  }

  /* ── Section label ── */
  .section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    padding: 5px 12px;
    border-radius: 6px;
    margin-bottom: 24px;
    width: fit-content;
  }

  .label-say {
    background: rgba(99,102,241,0.1);
    color: var(--indigo-light);
    border: 1px solid rgba(99,102,241,0.25);
  }

  .label-action {
    background: rgba(251,191,36,0.08);
    color: var(--amber);
    border: 1px solid rgba(251,191,36,0.2);
  }

  .label-both {
    background: rgba(139,92,246,0.1);
    color: #c4b5fd;
    border: 1px solid rgba(139,92,246,0.25);
  }

  /* ── Main script text ── */
  .script-text {
    font-size: clamp(22px, 2.8vw, 30px);
    font-weight: 500;
    line-height: 1.65;
    color: var(--white);
    letter-spacing: -0.01em;
  }

  .script-text em {
    font-style: normal;
    color: var(--indigo-light);
    font-weight: 600;
  }

  .script-text strong {
    color: #fff;
    font-weight: 700;
  }

  /* ── Action cue box ── */
  .action-cue {
    margin-top: 28px;
    background: rgba(251,191,36,0.05);
    border: 1px solid rgba(251,191,36,0.15);
    border-radius: 12px;
    padding: 16px 20px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
  }

  .action-cue .cue-icon {
    font-size: 16px;
    margin-top: 1px;
    flex-shrink: 0;
  }

  .action-cue .cue-text {
    font-size: 14px;
    font-weight: 500;
    color: var(--amber);
    line-height: 1.55;
  }

  /* ── Answer box ── */
  .answer-box {
    margin-top: 24px;
    background: rgba(99,102,241,0.06);
    border: 1px solid rgba(99,102,241,0.2);
    border-radius: 16px;
    padding: 22px 26px;
  }

  .answer-label {
    font-size: 10px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--indigo-light);
    margin-bottom: 12px;
    opacity: 0.7;
  }

  .answer-text {
    font-size: clamp(14px, 1.6vw, 17px);
    font-weight: 400;
    line-height: 1.75;
    color: #cbd5e1;
  }

  .answer-text strong {
    color: #e2e8f0;
    font-weight: 600;
  }

  /* ── Question pill ── */
  .question-pill {
    background: rgba(139,92,246,0.08);
    border: 1px solid rgba(139,92,246,0.2);
    border-radius: 12px;
    padding: 16px 20px;
    margin-bottom: 18px;
  }

  .question-pill .q-label {
    font-size: 10px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: #c4b5fd;
    margin-bottom: 8px;
    opacity: 0.8;
  }

  .question-pill .q-text {
    font-size: 16px;
    font-weight: 500;
    color: #e2e8f0;
    font-style: italic;
    line-height: 1.55;
  }

  /* ── Divider ── */
  .divider {
    height: 1px;
    background: var(--border);
    margin: 24px 0;
  }

  /* ── Intro title card ── */
  .hero-title {
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 900;
    letter-spacing: -0.03em;
    line-height: 1.1;
    background: linear-gradient(135deg, #fff 30%, var(--indigo-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 16px;
  }

  .hero-sub {
    font-size: 16px;
    font-weight: 400;
    color: var(--slate-400);
    line-height: 1.6;
  }

  .hero-meta {
    margin-top: 32px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
  }

  .meta-pill {
    font-size: 12px;
    font-weight: 600;
    color: var(--slate-400);
    border: 1px solid rgba(255,255,255,0.08);
    padding: 6px 14px;
    border-radius: 999px;
  }

  .meta-pill span {
    color: var(--indigo-light);
    font-weight: 700;
  }

  /* ── Timing bar ── */
  .timing-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 20px;
    padding: 10px 16px;
    background: rgba(52,211,153,0.06);
    border: 1px solid rgba(52,211,153,0.15);
    border-radius: 10px;
    width: fit-content;
  }

  .timing-bar .t-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--emerald);
    flex-shrink: 0;
  }

  .timing-bar .t-text {
    font-size: 12px;
    font-weight: 600;
    color: var(--emerald);
    letter-spacing: 0.05em;
  }

  /* ── End card ── */
  .end-icon {
    font-size: 48px;
    margin-bottom: 20px;
  }

  /* keyboard shortcut indicator */
  kbd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: inherit;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 7px;
    border: 1px solid var(--slate-500);
    border-radius: 5px;
    color: var(--slate-400);
    background: rgba(255,255,255,0.04);
  }
</style>
</head>
<body>

<div id="progress-bar"></div>

<div id="header">
  <div id="brand">PrepStudio · Demo Script</div>
  <div id="slide-counter">1 / 11</div>
</div>

<div id="slide-viewport">

  <!-- ── SLIDE 1: Title ── -->
  <div class="slide active" id="s1">
    <div class="hero-title">PrepStudio<br/>Demo Script</div>
    <div class="hero-sub">Your full walkthrough — read line by line, page by page.</div>
    <div class="hero-meta">
      <div class="meta-pill">Topic: <span>REST APIs</span></div>
      <div class="meta-pill">Questions: <span>2</span></div>
      <div class="meta-pill">Target time: <span>4 min 20 sec</span></div>
    </div>
    <div class="timing-bar" style="margin-top:28px">
      <div class="t-dot"></div>
      <div class="t-text">Press → or Space to advance &nbsp;·&nbsp; ← to go back</div>
    </div>
  </div>

  <!-- ── SLIDE 2: Hook ── -->
  <div class="slide" id="s2">
    <div class="section-label label-say">🎙 Say this</div>
    <div class="script-text">
      "Studying for a technical interview is painful.
      You read articles, watch videos, maybe do some practice questions —
      but none of it actually prepares you for the moment
      someone puts you on the spot and asks you to
      <em>explain things out loud.</em>"
    </div>
    <div class="divider"></div>
    <div class="script-text" style="font-size:clamp(20px,2.4vw,26px); color:#94a3b8;">
      "<strong>PrepStudio fixes that.</strong> Let me show you how."
    </div>
    <div class="timing-bar">
      <div class="t-dot"></div>
      <div class="t-text">0:00 – 0:15</div>
    </div>
  </div>

  <!-- ── SLIDE 3: Create Plan ── -->
  <div class="slide" id="s3">
    <div class="section-label label-both">⚡ Do + Say</div>
    <div class="action-cue">
      <div class="cue-icon">🖱</div>
      <div class="cue-text">Click <strong>New Plan</strong> → type <strong>"REST APIs"</strong> → set <strong>3 days</strong> → hit Generate. Wait for the plan to load.</div>
    </div>
    <div style="margin-top: 26px"></div>
    <div class="script-text">
      "I'll create a new study plan.
      Topic — <em>REST APIs</em>. Three days."
    </div>
    <div class="divider"></div>
    <div class="script-text" style="font-size:clamp(18px,2.2vw,24px); color:#94a3b8;">
      "Gemini builds a full day-by-day curriculum —
      each day breaks down into specific topics I need to cover."
    </div>
    <div class="timing-bar" style="margin-top:20px">
      <div class="t-dot"></div>
      <div class="t-text">0:15 – 0:40</div>
    </div>
  </div>

  <!-- ── SLIDE 4: Open Topic ── -->
  <div class="slide" id="s4">
    <div class="section-label label-both">⚡ Do + Say</div>
    <div class="action-cue">
      <div class="cue-icon">🖱</div>
      <div class="cue-text">Click into <strong>Day 1</strong> → open the first topic. Wait for the article to fully load.</div>
    </div>
    <div style="margin-top: 26px"></div>
    <div class="script-text">
      "I'll open the first topic.
      Gemini writes a full technical article on demand —
      proper explanations, code examples, analogies.
      <em>This only gets generated once and is cached after that.</em>"
    </div>
    <div class="divider"></div>
    <div class="script-text" style="font-size:clamp(20px,2.4vw,26px);">
      "Now here's where it gets interesting."
    </div>
    <div class="timing-bar" style="margin-top:20px">
      <div class="t-dot"></div>
      <div class="t-text">0:40 – 1:05</div>
    </div>
  </div>

  <!-- ── SLIDE 5: Audio Lesson ── -->
  <div class="slide" id="s5">
    <div class="section-label label-both">⚡ Do + Say</div>
    <div class="action-cue">
      <div class="cue-icon">🖱</div>
      <div class="cue-text">Click the <strong>Audio Lesson</strong> button in the header. The floating player will appear at the bottom.</div>
    </div>
    <div style="margin-top:24px"></div>
    <div class="script-text">
      "I click <em>Audio Lesson</em>.
      PrepStudio takes this entire article,
      wraps it inside a teaching persona called <em>Nova</em>,
      and spins up a live <em>ElevenLabs voice agent</em> in real time."
    </div>
    <div class="divider"></div>
    <div class="script-text" style="font-size:clamp(18px,2.1vw,23px); color:#94a3b8;">
      "Nova doesn't read the article to me —
      she's instructed to <strong>teach it</strong>.
      Analogies, examples, real-world context."
    </div>
    <div class="timing-bar" style="margin-top:20px">
      <div class="t-dot"></div>
      <div class="t-text">1:05 – 1:35</div>
    </div>
  </div>

  <!-- ── SLIDE 6: Interrupt Nova ── -->
  <div class="slide" id="s6">
    <div class="section-label label-both">⚡ Do + Say</div>
    <div class="action-cue">
      <div class="cue-icon">⏳</div>
      <div class="cue-text">Let Nova speak for ~20 seconds. Then speak into your mic:</div>
    </div>
    <div class="question-pill" style="margin-top:20px">
      <div class="q-label">You say to Nova →</div>
      <div class="q-text">"Can you give me a real-world example of that?"</div>
    </div>
    <div class="action-cue" style="margin-top:0">
      <div class="cue-icon">⏳</div>
      <div class="cue-text">Let Nova respond. Then click <strong>End Lesson</strong>.</div>
    </div>
    <div style="margin-top: 20px"></div>
    <div class="script-text" style="font-size:clamp(18px,2.2vw,24px);">
      "And because this is a full Conversational AI agent,
      I can <em>interrupt her</em>."
    </div>
    <div class="divider"></div>
    <div class="script-text" style="font-size:clamp(17px,2vw,22px); color:#94a3b8;">
      "She answers, then picks the lesson back up.
      It's a <strong>two-way session</strong>, not a recording."
    </div>
    <div class="timing-bar" style="margin-top:16px">
      <div class="t-dot"></div>
      <div class="t-text">1:35 – 2:10</div>
    </div>
  </div>

  <!-- ── SLIDE 7: Start Interview ── -->
  <div class="slide" id="s7">
    <div class="section-label label-both">⚡ Do + Say</div>
    <div class="action-cue">
      <div class="cue-icon">🖱</div>
      <div class="cue-text">Navigate to the <strong>Interview</strong> page from the plan view. Select <strong>2</strong> on the question picker. Click <strong>Start Voice Interview</strong>.</div>
    </div>
    <div style="margin-top:24px"></div>
    <div class="script-text">
      "Now for the interview.
      I'll select <em>2 questions</em> for this demo."
    </div>
    <div class="divider"></div>
    <div class="script-text" style="font-size:clamp(17px,2vw,22px); color:#94a3b8;">
      "The backend generates technical questions based on my study plan,
      creates a second ElevenLabs agent — an interviewer named <strong>Alex</strong> —
      with those exact questions embedded in his instructions,
      and gives me a <em>live signed WebSocket URL</em> to connect to."
    </div>
    <div class="timing-bar" style="margin-top:16px">
      <div class="t-dot"></div>
      <div class="t-text">2:10 – 2:40</div>
    </div>
  </div>

  <!-- ── SLIDE 8: Intro + Q1 ── -->
  <div class="slide" id="s8">
    <div class="section-label label-both">⚡ Do + Say</div>
    <div class="action-cue">
      <div class="cue-icon">🎙</div>
      <div class="cue-text">Alex will introduce himself and ask for your background. Respond naturally:</div>
    </div>
    <div class="question-pill" style="margin-top:16px">
      <div class="q-label">Your intro →</div>
      <div class="q-text">"Hi, I'm Mritunjay — a developer currently studying REST API design."</div>
    </div>
    <div class="action-cue" style="margin-top:0">
      <div class="cue-icon">⏳</div>
      <div class="cue-text">Alex transitions: <em>"Perfect. Let's move into the technical questions."</em> Then asks Q1.</div>
    </div>
    <div style="margin-top:16px"></div>
    <div class="script-text" style="font-size:clamp(17px,2vw,22px);">
      "Alex starts by asking for my introduction."
    </div>
    <div class="timing-bar" style="margin-top:16px">
      <div class="t-dot"></div>
      <div class="t-text">2:40 – 3:00</div>
    </div>
  </div>

  <!-- ── SLIDE 9: Answer Q1 ── -->
  <div class="slide" id="s9">
    <div class="section-label label-action">🎙 Your Answer — Q1</div>
    <div class="question-pill">
      <div class="q-label">Alex asks →</div>
      <div class="q-text">"Can you explain what REST is and describe the key principles that make an API RESTful?"</div>
    </div>
    <div class="answer-box">
      <div class="answer-label">Your answer</div>
      <div class="answer-text">
        "REST stands for <strong>Representational State Transfer</strong>.
        The key principles are: <strong>statelessness</strong> — each request contains all the info the server needs,
        no session stored between calls.
        A <strong>uniform interface</strong> using HTTP methods —
        GET for reading, POST for creating, PUT or PATCH for updating, DELETE for removing.
        Resources are identified by URLs. So instead of slash-getUser,
        a REST API says <strong>GET slash users slash 1</strong>."
      </div>
    </div>
    <div class="timing-bar" style="margin-top:18px">
      <div class="t-dot"></div>
      <div class="t-text">3:00 – 3:20</div>
    </div>
  </div>

  <!-- ── SLIDE 10: Answer Q2 ── -->
  <div class="slide" id="s10">
    <div class="section-label label-action">🎙 Your Answer — Q2</div>
    <div class="question-pill">
      <div class="q-label">Alex asks →</div>
      <div class="q-text">"What is the difference between PUT and PATCH, and what HTTP status codes would you use for a successful creation versus a bad request?"</div>
    </div>
    <div class="answer-box">
      <div class="answer-label">Your answer</div>
      <div class="answer-text">
        "<strong>PUT</strong> replaces the entire resource.
        <strong>PATCH</strong> is for partial updates — I only send the fields I want to change.
        On status codes: <strong>201 Created</strong> for a successful POST,
        <strong>200 OK</strong> for a successful GET or PUT,
        <strong>204 No Content</strong> for a successful DELETE.
        For errors — <strong>400</strong> for invalid data,
        <strong>401</strong> when there's no auth token,
        <strong>403</strong> when the token is valid but lacks permission,
        and <strong>404</strong> when the resource doesn't exist."
      </div>
    </div>
    <div class="timing-bar" style="margin-top:18px">
      <div class="t-dot"></div>
      <div class="t-text">3:20 – 3:42</div>
    </div>
  </div>

  <!-- ── SLIDE 11: Report Card ── -->
  <div class="slide" id="s11">
    <div class="section-label label-both">⚡ Do + Say</div>
    <div class="action-cue">
      <div class="cue-icon">⏳</div>
      <div class="cue-text">Alex wraps up. Wait for the <strong>"Analysing your performance"</strong> screen. Then the report card appears — scroll through it slowly.</div>
    </div>
    <div style="margin-top:22px"></div>
    <div class="script-text">
      "The full conversation transcript gets sent to <em>Gemini</em>,
      which scores every answer and generates a personalised report."
    </div>
    <div class="divider"></div>
    <div class="script-text" style="font-size:clamp(18px,2.1vw,23px); color:#94a3b8;">
      "Overall score, grade, what I did well, what to improve —
      and a <strong>breakdown of every single answer</strong>."
    </div>
    <div class="timing-bar" style="margin-top:18px">
      <div class="t-dot"></div>
      <div class="t-text">3:42 – 4:05</div>
    </div>
  </div>

  <!-- ── SLIDE 12: Closing ── -->
  <div class="slide" id="s12">
    <div class="section-label label-say">🎙 Closing</div>
    <div class="action-cue">
      <div class="cue-icon">🖱</div>
      <div class="cue-text">Navigate back to the dashboard for a clean ending shot.</div>
    </div>
    <div style="margin-top:22px"></div>
    <div class="script-text">
      "PrepStudio uses <em>ElevenLabs Conversational AI</em>
      to turn passive studying into active practice —
      a tutor that explains concepts out loud,
      and an interviewer that puts you under <em>real pressure</em>."
    </div>
    <div class="divider"></div>
    <div class="script-text" style="font-size:clamp(18px,2.1vw,23px); color:#94a3b8;">
      "Every agent is created <strong>dynamically per session</strong>,
      personalised to exactly what you're studying."
    </div>
    <div class="timing-bar" style="margin-top:18px">
      <div class="t-dot"></div>
      <div class="t-text">4:05 – 4:20 · Done ✓</div>
    </div>
  </div>

</div><!-- /slide-viewport -->

<div id="timer">
  <div id="timer-dot"></div>
  <span id="timer-display">0:00</span>
</div>

<div id="nav-hint">
  <kbd>←</kbd> prev &nbsp; <kbd>→</kbd> next &nbsp; <kbd>Space</kbd> advance &nbsp; <kbd>R</kbd> reset timer
</div>

<script>
  const slides = document.querySelectorAll('.slide');
  const counter = document.getElementById('slide-counter');
  const progressBar = document.getElementById('progress-bar');
  const timerDisplay = document.getElementById('timer-display');
  const timerDot = document.getElementById('timer-dot');
  let current = 0;
  const total = slides.length;

  // ── Timer ──────────────────────────────────────────────
  let seconds = 0;
  let timerRunning = false;
  let timerInterval = null;

  function startTimer() {
    if (timerRunning) return;
    timerRunning = true;
    timerDot.style.background = '#34d399';
    timerInterval = setInterval(() => {
      seconds++;
      const m = String(Math.floor(seconds / 60)).padStart(1,'0');
      const s = String(seconds % 60).padStart(2,'0');
      timerDisplay.textContent = `${m}:${s}`;
      // warn at 4:00
      if (seconds >= 240) timerDot.style.background = '#fbbf24';
      // over at 4:30
      if (seconds >= 270) timerDot.style.background = '#f87171';
    }, 1000);
  }

  function resetTimer() {
    clearInterval(timerInterval);
    timerRunning = false;
    seconds = 0;
    timerDisplay.textContent = '0:00';
    timerDot.style.background = '#34d399';
  }

  // ── Navigation ─────────────────────────────────────────
  function goTo(idx) {
    slides[current].classList.remove('active');
    current = Math.max(0, Math.min(idx, total - 1));
    slides[current].classList.add('active');
    counter.textContent = `${current + 1} / ${total}`;
    progressBar.style.width = `${((current + 1) / total) * 100}%`;

    // start timer on first advance from title
    if (current === 1 && !timerRunning) startTimer();
    if (current === 0) resetTimer();
  }

  document.addEventListener('keydown', (e) => {
    if (e.key === 'ArrowRight' || e.key === ' ') { e.preventDefault(); goTo(current + 1); }
    if (e.key === 'ArrowLeft')  { e.preventDefault(); goTo(current - 1); }
    if (e.key === 'r' || e.key === 'R') resetTimer();
  });

  // Click right half = next, left half = prev
  document.getElementById('slide-viewport').addEventListener('click', (e) => {
    const half = window.innerWidth / 2;
    e.clientX > half ? goTo(current + 1) : goTo(current - 1);
  });

  // Init
  goTo(0);
</script>
</body>
</html>