open-design/skills/simple-deck/references/layouts.md
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Simple deck slide layouts

8 paste-ready slide skeletons. Drop into <body> of assets/template.html. Don't write slides from scratch — pick the closest layout, paste, swap copy.

Pre-flight

  1. Read assets/template.html end-to-end — every class below is defined in its <style> block. The fixed counter, progress bar, hint, and the 5-rule nav script at the bottom are already wired up; do not re-implement them.
  2. Plan the slide list AND theme rhythm before pasting any slide. See "Theme rhythm" below — this is the single biggest determinant of whether the deck feels alive or sleepy.
  3. Read the active DESIGN.md — map its tokens to the six :root variables in the seed.

Theme rhythm — the rule that prevents 6-slide sleep

Every <section class="slide"> MUST include exactly one of:

  • light — default white-paper surface
  • dark — inverted, fg-on-bg
  • hero light — same as light + extra padding (for cover, big stat, big quote)
  • hero dark — same as dark + extra padding

Rules:

  • No 3+ same-theme slides in a row. light light light → boring.
  • For decks with 8+ slides: at least one hero dark AND at least one hero light.
  • A dark slide every 34 slides creates the "breath" that makes the next light slide hit harder.
  • The cover is almost always hero light. The closing is often hero dark or hero light.

Before emitting, run mentally: list every slide's class. If you see light × 5 in a row, change one to dark.

Class inventory

slide light dark hero center eyebrow h-hero h-xl h-md lead meta stat-num unit stat-caption quote-mark quote-text quote-author pt-grid pt pipeline step nb ba-grid ba-col ba-label ph-img wide tall

If you reach for a class not on this list, define it in the seed's <style> first.


Layout 1 — Cover (slide 1)

hero light center. One eyebrow with date/context, one big serif headline (≤ 8 words for the punch), one lead sentence.

<section class="slide hero light center" data-screen-label="01 Cover">
  <div class="eyebrow">Filebase · Series B · Q2 2026</div>
  <h1 class="h-hero">The bandwidth bill is the bug.</h1>
  <p class="lead">A sync engine that ships only what changed. Backed by 3,184 paying teams.</p>
</section>

Layout 2 — Body slide (eyebrow + headline + lead)

The workhorse. Use 36× per deck. Vary light / dark for rhythm.

<section class="slide light" data-screen-label="04 Why now">
  <p class="eyebrow">Why now</p>
  <h2 class="h-xl">Three shifts make this market real.</h2>
  <p class="lead">Remote post-production. AI workflows. Bandwidth pricing up 4× since 2022. Storage is cheap; movement is expensive.</p>
</section>

Layout 3 — Big stat (data billboard)

hero light center or hero dark center. One number. Don't put 3 numbers on one slide — split into 3 stat slides.

<section class="slide hero dark center" data-screen-label="05 Big stat">
  <div class="stat-num">38<span class="unit">×</span></div>
  <p class="stat-caption">less data moved over the wire vs. naive sync, on real customer workloads.</p>
</section>

Layout 4 — Three-point row

A small headline above three rule-topped points. Each point ≤ 2 sentences.

<section class="slide light" data-screen-label="04 Why now">
  <p class="eyebrow">Why now</p>
  <h2 class="h-xl">Three shifts make this market real.</h2>
  <div class="pt-grid">
    <div class="pt">
      <h3>Remote post-production</h3>
      <p>Editors don't sit in one room any more. Cloud sync went from convenient to load-bearing.</p>
    </div>
    <div class="pt">
      <h3>AI workflows</h3>
      <p>Diffusion checkpoints are 7 GB. Engineers iterate on them daily. Existing tools choke.</p>
    </div>
    <div class="pt">
      <h3>Bandwidth pricing</h3>
      <p>Egress costs 4× what it did in 2022. Storage is cheap; movement is expensive.</p>
    </div>
  </div>
</section>

Layout 5 — Pipeline (numbered steps)

Workflow / process / how-it-works. Up to 4 steps; if you need more, split across two slides.

<section class="slide dark" data-screen-label="06 Pipeline">
  <p class="eyebrow">How it works</p>
  <h2 class="h-md">Four passes, end to end.</h2>
  <div class="pipeline">
    <div class="step">
      <span class="nb">01</span>
      <h3>Watch</h3>
      <p>FS events from kernel, debounced 50ms.</p>
    </div>
    <div class="step">
      <span class="nb">02</span>
      <h3>Chunk</h3>
      <p>Content-defined splitting, ~64KB target.</p>
    </div>
    <div class="step">
      <span class="nb">03</span>
      <h3>Diff</h3>
      <p>Bloom-filtered hash compare against remote.</p>
    </div>
    <div class="step">
      <span class="nb">04</span>
      <h3>Ship</h3>
      <p>Only the chunks the remote doesn't have.</p>
    </div>
  </div>
</section>

Layout 6 — Big quote / pull quote

hero light center. One quote, one attribution. Italic-feel via the serif display, not actual <em>.

<section class="slide hero light center" data-screen-label="07 Quote">
  <div class="quote-mark">"</div>
  <p class="quote-text">Filebase pays for itself in the first month. We were going to hire a dedicated DevOps person — instead we just switched.</p>
  <p class="quote-author">— Mira Hassan, CTO at Northwind Studios</p>
</section>

Layout 7 — Before / after (comparison)

Two columns, same shape, contrasting state. Don't decorate the columns — the contrast comes from copy and from picking one column to tint with the accent.

<section class="slide light" data-screen-label="08 Before / after">
  <p class="eyebrow">The shift</p>
  <h2 class="h-md">From whole-file sync to chunk-level sync.</h2>
  <div class="ba-grid">
    <div class="ba-col">
      <p class="ba-label">Before · 2022</p>
      <h3>Edit one frame, ship the whole 4 GB project.</h3>
      <p>$1,800 / month bandwidth bill on a single Final Cut workflow. Editors waiting 12 minutes per save.</p>
    </div>
    <div class="ba-col">
      <p class="ba-label" style="color: var(--accent);">After · 2026</p>
      <h3>Edit one frame, ship 240 KB.</h3>
      <p>$200 / month on the same workflow. Save-to-remote completes inside the editor's auto-save window.</p>
    </div>
  </div>
</section>

Layout 8 — Closing / CTA

hero dark center or hero light center. One sentence on the ask, one supporting line. The audience leaves remembering this.

<section class="slide hero dark center" data-screen-label="09 Ask">
  <div class="eyebrow">Ask</div>
  <h2 class="h-hero">$22M to ship the next sync engine.</h2>
  <p class="lead">18-month runway, hire 14, expand to enterprise on-prem.</p>
</section>

Default arcs

6-slide pitch (the minimum):

  1. hero light center — Cover (Layout 1)
  2. light — Problem body (Layout 2)
  3. hero dark center — Big stat (Layout 3)
  4. light — Three points (Layout 4)
  5. hero light center— Quote (Layout 6)
  6. hero dark center — Ask (Layout 8)

10-slide narrative:

  1. hero light center — Cover
  2. light — Problem
  3. hero dark center — Big stat 1
  4. light — Three points
  5. dark — Pipeline (Layout 5)
  6. hero light center— Quote
  7. light — Before / after (Layout 7)
  8. hero dark center — Big stat 2
  9. light — Team / metrics
  10. hero dark center— Ask

After laying out, mentally read the class list — light dark light dark should show alternation, not blocks of the same theme.