<!doctype html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Mat Presentation</title>

    <!-- Preconnect to Google Fonts for faster loading -->
    <link rel="preconnect" href="https://fonts.googleapis.com" />
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
    <!-- Bricolage Grotesque: heavy rounded grotesque — the display workhorse of this template.
         DM Sans: clean and neutral for body copy.
         DM Mono: for labels, kickers, and metadata.
         Noto Sans SC: Chinese fallback for all roles. -->
    <link
      href="https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:wght@400;500;600;700;800&family=DM+Sans:wght@300;400;500&family=DM+Mono:wght@300;400&family=Noto+Sans+SC:wght@400;500;700&display=swap"
      rel="stylesheet"
    />

    <style>
      /* ╔══════════════════════════════════════════════════════════════════════╗
   ║  ZONE A · TOKENS                                                     ║
   ║                                                                      ║
   ║  Mat theme — inspired by a product landing page with a dark          ║
   ║  green surface and warm material tones.                              ║
   ║  Dark forest green as dominant environment.                          ║
   ║  Warm orange as the accent.                                          ║
   ║  Cream type floating directly on the field.                          ║
   ╚══════════════════════════════════════════════════════════════════════╝ */
      :root {
        /* ── Palette — dark green surface with warm material tones ─────── */
        --c-bg: #232e26; /* dark forest green — the surface       */
        --c-bg-alt: #2e3d30; /* slightly lighter green surface        */
        --c-bg-light: #ede6d0; /* warm cream — info card + light slides */
        --c-bg-light-alt: #e4dac4;

        --c-fg: #f0e8d2; /* warm cream — primary text on dark     */
        --c-fg-2: rgba(240, 232, 210, 0.58);
        --c-fg-3: rgba(240, 232, 210, 0.3);
        --c-fg-light: #1e2820; /* dark green — text on cream slides     */
        --c-fg-light-2: rgba(30, 40, 32, 0.6);
        --c-fg-light-3: rgba(30, 40, 32, 0.3);

        --c-accent: #c07030; /* warm orange accent                    */
        --c-border: rgba(240, 232, 210, 0.12);
        --c-border-light: rgba(30, 40, 32, 0.14);

        /* Wood warm tone — used for the atmospheric bottom-right glow */
        --c-wood: #7a4e24;

        /* ── Typography ──────────────────────────────────────────────────── */
        /* Display/Heading: Bricolage Grotesque — heavy, rounded, mixed case.
           The defining font of this template. Weight 700–800 at display scale. */
        --f-display: "Bricolage Grotesque", "Noto Sans SC", sans-serif;
        --f-heading: "Bricolage Grotesque", "Noto Sans SC", sans-serif;
        /* Body: DM Sans — neutral, readable, lets the display type breathe */
        --f-body: "DM Sans", "Noto Sans SC", system-ui, sans-serif;
        /* Mono: DM Mono — for kickers, labels, metadata, rotated edge tags */
        --f-mono: "DM Mono", monospace;

        /* ── Type Scale ──────────────────────────────────────────────────── */
        /* vw units = responsive to viewport width */
        --sz-display: 12vw; /* hero cover title — massive, commanding        */
        --sz-h1: 7vw; /* chapter / end slide headline                  */
        --sz-h2: 4vw; /* content slide headline                        */
        --sz-h3: 2.4vw; /* sub-headline, compare panel title             */
        --sz-lead: 1.5vw; /* lead paragraph — slightly larger than body    */
        --sz-body: 1.05vw; /* body text, bullets                            */
        --sz-caption: 0.82vw; /* image captions, footnotes                     */
        --sz-label: 0.7vw; /* chrome labels, kickers, mono tags             */

        /* ── Spacing ─────────────────────────────────────────────────────── */
        --pad-x: 5.5vw; /* slide horizontal padding — tighter than skeleton */
        --pad-y: 5.5vh; /* slide vertical padding                           */
        --gap-lg: 4.5vh; /* between major content sections                   */
        --gap-md: 2.8vh; /* between related elements                         */
        --gap-sm: 1.4vh; /* between tightly related elements                 */

        /* ── Motion: zero — this template is fully static ───────────────── */
        --ease-slide: cubic-bezier(0.77, 0, 0.175, 1);
        --dur-slide: 0s;
        --ease-enter: cubic-bezier(0.16, 1, 0.3, 1);
        --dur-enter: 0s;
      }

      /* ╔══════════════════════════════════════════════════════════════════════╗
   ║  ZONE B · ENGINE — DO NOT MODIFY                                     ║
   ║                                                                      ║
   ║  Copied from skeleton.html. Deck flex layout, slide base,            ║
   ║  theme classes, nav dots, slide counter.                             ║
   ║  Touching this breaks navigation.                                    ║
   ╚══════════════════════════════════════════════════════════════════════╝ */

      *,
      *::before,
      *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
      }
      html,
      body {
        width: 100%;
        height: 100%;
        overflow: hidden;
        background: var(--c-bg);
        -webkit-font-smoothing: antialiased;
      }

      /* Deck container — all slides sit side by side horizontally */
      #deck {
        display: flex;
        height: 100vh;
        /* Width = N * 100vw, set dynamically by JS */
        transition: transform var(--dur-slide) var(--ease-slide);
        will-change: transform;
      }

      /* Slide base — each slide is one full viewport */
      .slide {
        flex: 0 0 100vw;
        width: 100vw;
        height: 100vh;
        position: relative;
        padding: var(--pad-y) var(--pad-x);
        display: grid;
        grid-template-rows: auto 1fr auto;
        overflow: hidden;
      }
      /* Prevent grid children from overflowing their row */
      .slide-body {
        min-height: 0;
      }

      /* Slide themes — overridden by the mat's own dark/light rules below */
      .slide.dark {
        background: var(--c-bg);
        color: var(--c-fg);
      }
      .slide.light {
        background: var(--c-bg-light);
        color: var(--c-fg-light);
      }

      /* ── Navigation dots ──────────────────────────────────────────────── */
      #nav-dots {
        position: fixed;
        bottom: 24px;
        left: 50%;
        transform: translateX(-50%);
        display: flex;
        gap: 7px;
        z-index: 100;
      }
      .nav-dot {
        width: 5px;
        height: 5px;
        border-radius: 50%;
        border: none;
        background: rgba(255, 255, 255, 0.22);
        cursor: pointer;
        transition:
          background 0.3s,
          transform 0.3s;
        padding: 0;
      }
      .nav-dot.is-active {
        background: rgba(255, 255, 255, 0.8);
        transform: scale(1.4);
      }

      /* Slide counter — bottom right, subtle */
      #slide-counter {
        position: fixed;
        bottom: 20px;
        right: 28px;
        font-family: var(--f-mono);
        font-size: 10px;
        letter-spacing: 0.12em;
        color: rgba(255, 255, 255, 0.25);
        z-index: 100;
        user-select: none;
      }

      /* ╔══════════════════════════════════════════════════════════════════════╗
   ║  ZONE C · TYPOGRAPHY                                                 ║
   ║                                                                      ║
   ║  All type classes written from scratch for the mat theme.            ║
   ║  Bricolage Grotesque 700–800 for display and headings.               ║
   ║  Headings are ALWAYS mixed case — never uppercase.                   ║
   ╚══════════════════════════════════════════════════════════════════════╝ */

      /* Display: the massive cover title. 12vw, very tight leading. */
      .display {
        font-family: var(--f-display);
        font-size: var(--sz-display);
        font-weight: 800;
        line-height: 0.88;
        letter-spacing: -0.03em;
      }
      /* H1: chapter/end slides. Slightly smaller than display, still commanding. */
      .h1 {
        font-family: var(--f-heading);
        font-size: var(--sz-h1);
        font-weight: 800;
        line-height: 0.92;
        letter-spacing: -0.025em;
      }
      /* H2: the workhorse content slide headline. */
      .h2 {
        font-family: var(--f-heading);
        font-size: var(--sz-h2);
        font-weight: 700;
        line-height: 1;
        letter-spacing: -0.02em;
      }
      /* H3: sub-headlines and compare panel labels. */
      .h3 {
        font-family: var(--f-heading);
        font-size: var(--sz-h3);
        font-weight: 600;
        line-height: 1.1;
        letter-spacing: -0.01em;
      }
      /* Lead: intro paragraph, slightly larger than body. */
      .lead {
        font-family: var(--f-body);
        font-size: var(--sz-lead);
        font-weight: 400;
        line-height: 1.55;
      }
      /* Body: general text. */
      .body {
        font-family: var(--f-body);
        font-size: var(--sz-body);
        font-weight: 400;
        line-height: 1.65;
      }
      /* Caption: image captions, footnotes. */
      .caption {
        font-family: var(--f-body);
        font-size: var(--sz-caption);
        font-weight: 400;
        line-height: 1.5;
      }
      /* Label: mono uppercase tracking — kickers, metadata, chrome. */
      .label {
        font-family: var(--f-mono);
        font-size: var(--sz-label);
        font-weight: 400;
        letter-spacing: 0.12em;
        text-transform: uppercase;
      }

      /* Contextual color helpers */
      .muted {
        color: var(--c-fg-2);
      }
      .accent {
        color: var(--c-accent);
      }
      .light .muted {
        color: var(--c-fg-light-2);
      }

      /* Bullet list: dash prefix in warm orange, body font at lead size */
      .bullet-list {
        list-style: none;
        display: flex;
        flex-direction: column;
        gap: var(--gap-md);
        padding: 0;
      }
      .bullet-list li {
        font-family: var(--f-body);
        font-size: var(--sz-lead);
        font-weight: 400;
        line-height: 1.5;
        display: grid;
        grid-template-columns: 1.4em 1fr;
        gap: 0.5em;
      }
      /* The dash before each bullet — warm orange accent via DM Mono */
      .bullet-list li::before {
        content: "—";
        color: var(--c-accent);
        font-family: var(--f-mono);
      }
      .light .bullet-list li {
        color: var(--c-fg-light);
      }

      /* ╔══════════════════════════════════════════════════════════════════════╗
   ║  MAT ATMOSPHERIC BACKGROUND                                          ║
   ║                                                                      ║
   ║  Every dark slide has a subtle warm wood-brown radial glow           ║
   ║  from the bottom-right corner, evoking a warm material edge.         ║
   ║  No photography needed.                                              ║
   ╚══════════════════════════════════════════════════════════════════════╝ */

      /* Atmospheric glow lives on ::before so it never competes with content */
      .slide.dark {
        background: var(--c-bg);
        color: var(--c-fg);
        position: relative;
        overflow: hidden;
      }
      .slide.dark::before {
        content: "";
        position: absolute;
        bottom: -10%;
        right: -5%;
        width: 55%;
        height: 70%;
        background: radial-gradient(
          ellipse at 70% 80%,
          rgba(122, 78, 36, 0.28) 0%,
          rgba(80, 50, 20, 0.14) 40%,
          transparent 70%
        );
        pointer-events: none;
        z-index: 0;
      }
      /* All direct children of dark slides sit above the glow pseudo-element */
      .slide.dark > * {
        position: relative;
        z-index: 1;
      }

      .slide.light {
        background: var(--c-bg-light);
        color: var(--c-fg-light);
      }

      /* ╔══════════════════════════════════════════════════════════════════════╗
   ║  CHROME + FOOT                                                       ║
   ║                                                                      ║
   ║  Header chrome (kicker + slide number) and footer foot               ║
   ║  (deck name + author). Suppressed on cover, quote, and end slides.   ║
   ╚══════════════════════════════════════════════════════════════════════╝ */

      .slide-chrome,
      .slide-foot {
        display: flex;
        justify-content: space-between;
        align-items: center;
      }
      .slide-chrome {
        padding-bottom: var(--gap-sm);
        border-bottom: 1px solid var(--c-border);
        margin-bottom: var(--gap-md);
      }
      .slide-foot {
        padding-top: var(--gap-sm);
        border-top: 1px solid var(--c-border);
        margin-top: var(--gap-md);
      }
      .light .slide-chrome,
      .light .slide-foot {
        border-color: var(--c-border-light);
      }

      /* Suppress chrome/foot on chromeless slide types */
      .slide--cover .slide-chrome,
      .slide--cover .slide-foot,
      .slide--quote .slide-chrome,
      .slide--quote .slide-foot,
      .slide--end .slide-chrome,
      .slide--end .slide-foot {
        display: none;
      }

      /* ╔══════════════════════════════════════════════════════════════════════╗
   ║  SHARED COMPONENTS                                                   ║
   ╚══════════════════════════════════════════════════════════════════════╝ */

      /* Kicker: mono uppercase in warm orange — the eyebrow label */
      .kicker {
        font-family: var(--f-mono);
        font-size: var(--sz-label);
        letter-spacing: 0.12em;
        text-transform: uppercase;
        color: var(--c-accent);
      }

      /* Rule: a short horizontal accent line */
      .rule {
        width: 32px;
        height: 1px;
        background: var(--c-accent);
      }

      /* Image placeholder — used until real photography is available */
      .img-placeholder {
        background: rgba(240, 232, 210, 0.06);
        border: 1px solid var(--c-border);
        display: flex;
        align-items: center;
        justify-content: center;
        font-family: var(--f-mono);
        font-size: var(--sz-label);
        letter-spacing: 0.1em;
        color: var(--c-fg-3);
        width: 100%;
        height: 100%;
        min-height: 30vh;
      }
      .light .img-placeholder {
        background: var(--c-bg-light-alt);
        color: var(--c-fg-light-3);
      }

      /* ╔══════════════════════════════════════════════════════════════════════╗
   ║  MAT SIGNATURE COMPONENT: INFO CARD                                  ║
   ║                                                                      ║
   ║  The cream inset box — the single most distinctive move in this      ║
   ║  template. Cream background on a dark green field creates immediate  ║
   ║  material contrast. Used on the cover (bottom-left) and end slide    ║
   ║  (right column).                                                     ║
   ╚══════════════════════════════════════════════════════════════════════╝ */

      .info-card {
        background: var(--c-bg-light);
        color: var(--c-fg-light);
        padding: var(--gap-md) calc(var(--pad-x) * 0.8);
        max-width: 28vw;
        display: flex;
        flex-direction: column;
        gap: var(--gap-sm);
      }
      .info-card-heading {
        font-family: var(--f-heading);
        font-size: var(--sz-h3);
        font-weight: 700;
        line-height: 1.1;
        letter-spacing: -0.01em;
        color: var(--c-fg-light);
      }
      .info-card-body {
        font-family: var(--f-body);
        font-size: var(--sz-body);
        font-weight: 400;
        line-height: 1.6;
        color: var(--c-fg-light-2);
      }

      /* ╔══════════════════════════════════════════════════════════════════════╗
   ║  MAT SIGNATURE COMPONENT: SIDE LABEL                                 ║
   ║                                                                      ║
   ║  Rotated mono label on the right edge of cover and end slides.       ║
   ║  Adds vertical depth and studio identity.                            ║
   ╚══════════════════════════════════════════════════════════════════════╝ */

      /* ╔══════════════════════════════════════════════════════════════════════╗
   ║  ZONE E · LAYOUT PATTERNS                                            ║
   ║                                                                      ║
   ║  9 slide types for the mat template.                                 ║
   ║  All layout CSS written from scratch — not inherited from skeleton.  ║
   ╚══════════════════════════════════════════════════════════════════════╝ */

      /* ── 1. COVER: four-quadrant free-float layout ───────────────────── */
      /*    Top-left: massive display headline.                              */
      /*    Top-right: lead copy anchored center-right.                     */
      /*    Bottom-left: info card (cream inset).                           */
      /*    Bottom-right: attribution label.                                 */
      .slide--cover {
        display: grid;
        grid-template-rows: 1fr auto;
        grid-template-columns: 1fr 1fr;
        gap: 0;
        padding: var(--pad-y) var(--pad-x);
      }
      /* Top-left quadrant: kicker + display headline */
      .cover-headline {
        grid-column: 1;
        grid-row: 1;
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        padding-top: var(--gap-sm);
        gap: var(--gap-sm);
      }
      /* Top-right quadrant: supporting copy, vertically centered */
      .cover-copy {
        grid-column: 2;
        grid-row: 1;
        display: flex;
        flex-direction: column;
        justify-content: center;
        padding-left: var(--pad-x);
        gap: var(--gap-md);
      }
      /* Bottom row: info card left, attribution right */
      .cover-bottom {
        grid-column: 1 / 3;
        grid-row: 2;
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        gap: var(--gap-lg);
        padding-top: var(--gap-md);
      }

      /* ── 2. STATEMENT: asymmetric — headline left, copy right ────────── */
      /*    Wide left column holds the bold claim.                           */
      /*    Right column holds context and bullets.                          */
      .slide--statement {
        display: flex;
        flex-direction: column;
        justify-content: center;
      }
      .slide--statement .slide-body {
        display: grid;
        grid-template-columns: 1.1fr 1fr;
        gap: calc(var(--pad-x) * 1.4);
        align-items: center;
        min-height: 0;
      }
      /* Left side of statement: the headline zone */
      .stmt-headline {
        display: flex;
        flex-direction: column;
        gap: var(--gap-md);
      }
      /* Right side of statement: context and supporting detail */
      .stmt-copy {
        display: flex;
        flex-direction: column;
        gap: var(--gap-md);
      }

      /* ── 3. SPLIT: headline left | image center | copy right ─────────── */
      /*    Three columns of roughly equal weight.                           */
      /*    Center column is occupied by the visual object.                  */
      .slide--split {
        display: flex;
        flex-direction: column;
        justify-content: center;
      }
      .slide--split .slide-body {
        display: grid;
        grid-template-columns: 0.9fr 1.1fr 0.9fr;
        gap: 0;
        align-items: center;
        min-height: 0;
      }
      .split-left {
        display: flex;
        flex-direction: column;
        gap: var(--gap-md);
        padding-right: var(--pad-x);
      }
      /* Center: the product image or placeholder fills full height */
      .split-center {
        display: flex;
        align-items: center;
        justify-content: center;
        height: 52vh;
      }
      .split-right {
        display: flex;
        flex-direction: column;
        gap: var(--gap-md);
        padding-left: var(--pad-x);
      }

      /* ── 4. STATS: three large numbers with warm accent borders ─────── */
      /*    Vertical dividers between cells, not horizontal top borders.    */
      .slide--stats {
        display: flex;
        flex-direction: column;
        justify-content: center;
      }
      .slide--stats .slide-body {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 0;
        align-items: stretch;
        min-height: 0;
      }
      /* Each stat cell: left-padded except the first */
      .mat-stat {
        display: flex;
        flex-direction: column;
        gap: var(--gap-sm);
        padding: var(--gap-md) var(--pad-x) var(--gap-md) 0;
        border-right: 1px solid var(--c-border);
      }
      /* Last cell: no right border, has left padding */
      .mat-stat:last-child {
        border-right: none;
        padding-right: 0;
        padding-left: var(--pad-x);
      }
      /* Middle cell: symmetrical padding */
      .mat-stat:nth-child(2) {
        padding: var(--gap-md) var(--pad-x);
      }
      /* The big number — Bricolage Grotesque 800 at display scale */
      .mat-stat-val {
        font-family: var(--f-display);
        font-size: 5.5vw;
        font-weight: 800;
        line-height: 1;
        letter-spacing: -0.025em;
        color: var(--c-fg);
      }
      /* The <em> inside the number gets warm orange — e.g. "4.7k" */
      .mat-stat-val em {
        font-style: normal;
        color: var(--c-accent);
      }
      .mat-stat-label {
        font-family: var(--f-body);
        font-size: var(--sz-body);
        color: var(--c-fg-2);
        line-height: 1.5;
      }
      /* Light slide overrides for stats */
      .light .mat-stat {
        border-color: var(--c-border-light);
      }
      .light .mat-stat-val {
        color: var(--c-fg-light);
      }
      .light .mat-stat-label {
        color: var(--c-fg-light-2);
      }

      /* ── 5. QUOTE: full-slide pull quote, chromeless ─────────────────── */
      /*    Large quotation mark in warm orange.                             */
      /*    Quote text in Bricolage Grotesque — not a serif quote style.    */
      .slide--quote {
        display: flex;
        flex-direction: column;
        justify-content: center;
        padding: calc(var(--pad-y) * 1.4) calc(var(--pad-x) * 1.1);
      }
      /* The decorative opening quote mark */
      .quote-mark {
        font-family: var(--f-display);
        font-size: 8vw;
        line-height: 0.6;
        color: var(--c-accent);
        margin-bottom: var(--gap-md);
        font-weight: 800;
      }
      /* The quote text: large, rounded grotesque, mixed case */
      .quote-text {
        font-family: var(--f-heading);
        font-size: 3.4vw;
        font-weight: 600;
        line-height: 1.2;
        letter-spacing: -0.02em;
        max-width: 70%;
        margin-bottom: var(--gap-lg);
        color: var(--c-fg);
      }
      /* Attribution block: name + role stacked */
      .quote-attr {
        display: flex;
        flex-direction: column;
        gap: 0.4vh;
      }
      .light .quote-text {
        color: var(--c-fg-light);
      }

      /* ── 6. LIST: wide left margin headline + right content column ───── */
      /*    The wide asymmetric left margin creates air even when right     */
      /*    column has content. Spacious, editorial pacing.                 */
      .slide--list {
        display: flex;
        flex-direction: column;
        justify-content: center;
      }
      .slide--list .slide-body {
        display: grid;
        grid-template-columns: 0.7fr 1.5fr;
        gap: calc(var(--pad-x) * 1.2);
        align-items: center;
        min-height: 0;
      }
      /* Left column: headline zone */
      .list-head {
        display: flex;
        flex-direction: column;
        gap: var(--gap-md);
      }
      /* Right column: the actual list content */
      .list-items {
        display: flex;
        flex-direction: column;
        gap: var(--gap-md);
      }

      /* ── 7. COMPARE: Before / After split with a divider line ────────── */
      /*    Three-column grid: left panel | divider | right panel.          */
      .slide--compare {
        display: flex;
        flex-direction: column;
        justify-content: center;
      }
      .slide--compare .slide-body {
        display: grid;
        grid-template-columns: 1fr 1px 1fr;
        gap: 0;
        align-items: center;
        min-height: 0;
        height: 68vh;
      }
      /* Each compare panel */
      .compare-panel {
        display: flex;
        flex-direction: column;
        gap: var(--gap-md);
        padding: var(--gap-md) var(--pad-x);
      }
      .compare-panel.left {
        padding-left: 0;
      }
      .compare-panel.right {
        padding-right: 0;
      }
      /* The thin vertical divider line between panels */
      .compare-divider-line {
        background: var(--c-border);
        height: 100%;
        width: 1px;
      }
      /* Before label: muted mono */
      .compare-label {
        font-family: var(--f-mono);
        font-size: var(--sz-label);
        letter-spacing: 0.14em;
        text-transform: uppercase;
        color: var(--c-fg-3);
        margin-bottom: var(--gap-sm);
      }
      /* After label: warm orange accent */
      .compare-label.after {
        color: var(--c-accent);
      }
      .light .compare-label {
        color: var(--c-fg-light-3);
      }
      .light .compare-divider-line {
        background: var(--c-border-light);
      }

      /* ── 8. CHART: vertical bar chart ─────────────────────────────────── */
      .slide--chart .slide-body {
        display: flex;
        flex-direction: column;
        gap: var(--gap-md);
        min-height: 0;
      }
      /* Chart header: title left, unit label right */
      .chart-header {
        display: flex;
        justify-content: space-between;
        align-items: baseline;
        flex-shrink: 0;
      }
      /* Chart wrapper: grows to fill available height, bars aligned to bottom */
      .chart-wrapper {
        flex: 1;
        display: flex;
        flex-direction: column;
        justify-content: flex-end;
        min-height: 0;
      }
      /* The bar track: horizontal row with bars aligned to bottom */
      .bar-track {
        height: 30vh;
        display: flex;
        align-items: flex-end;
        gap: 3vw;
        border-left: 1px solid var(--c-border);
        padding-left: 0.5vw;
      }
      /* Each individual bar column */
      .bar-col {
        flex: 1;
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-end;
        gap: 1vh;
        height: 100%;
      }
      /* The filled bar rectangle — height set inline as % */
      .bar-fill {
        width: 100%;
        background: var(--c-fg-3);
      }
      /* The accent bar: warm orange highlight */
      .bar-fill.accent {
        background: var(--c-accent);
      }
      /* X-axis label below each bar */
      .bar-x-label {
        font-family: var(--f-mono);
        font-size: var(--sz-caption);
        letter-spacing: 0.1em;
        color: var(--c-fg-3);
        white-space: nowrap;
      }
      /* Value label above the bar */
      .bar-val {
        font-family: var(--f-body);
        font-size: var(--sz-body);
        font-weight: 500;
        color: var(--c-fg-2);
      }
      /* Highlighted value on the accent bar */
      .bar-val.hi {
        color: var(--c-accent);
        font-weight: 600;
      }
      /* Baseline rule below the bars */
      .chart-baseline {
        height: 1px;
        background: var(--c-border);
        flex-shrink: 0;
      }
      /* Source attribution at the bottom */
      .chart-source {
        flex-shrink: 0;
        font-family: var(--f-mono);
        font-size: var(--sz-caption);
        color: var(--c-fg-3);
        letter-spacing: 0.06em;
        margin-top: var(--gap-sm);
      }

      /* ── 9. END: closing slide, chromeless, mirrors cover energy ─────── */
      /*    Left column: headline and CTA.                                  */
      /*    Right column: info card (cream inset — the signature component).*/
      .slide--end {
        display: grid;
        grid-template-rows: 1fr auto;
        grid-template-columns: 1fr 1fr;
        gap: 0;
        padding: var(--pad-y) var(--pad-x);
      }
      /* Left main: headline content, bottom-aligned */
      .end-main {
        grid-column: 1;
        grid-row: 1;
        display: flex;
        flex-direction: column;
        justify-content: flex-end;
        gap: var(--gap-md);
      }
      /* Right side: info card in the right column */
      .end-side {
        grid-column: 2;
        grid-row: 1;
        display: flex;
        align-items: flex-end;
        padding-left: var(--pad-x);
      }
      /* Footer: label left and right, above a border */
      .end-foot {
        grid-column: 1 / 3;
        grid-row: 2;
        display: flex;
        justify-content: space-between;
        align-items: flex-end;
        border-top: 1px solid var(--c-border);
        padding-top: var(--gap-sm);
        margin-top: var(--gap-md);
      }
    </style>
  </head>
  <body>
    <div id="deck">
      <!-- ═══ SLIDE 01 · COVER ═══════════════════════════════════════════════ -->
      <!-- Four-quadrant free-float layout on dark forest green.
           Top-left: kicker + massive display headline (one word per line).
           Top-right: lead copy, center-right aligned.
           Bottom-left: cream info card (the signature material contrast).
           Bottom-right: attribution label.
           The side-label on the right edge echoes the product spec callout. -->
      <section
        class="slide dark slide--cover"
        data-slide="1"
        style="position: relative"
      >
        <div class="cover-headline">
          <span class="kicker">[Studio Name] · 2026</span>
          <h1 class="display" style="color: var(--c-fg)">Craft<br />Matters</h1>
        </div>
        <div class="cover-copy">
          <p class="lead" style="color: var(--c-fg-2); max-width: 90%">
            Designed for the hands that build things. [A one-line description of
            what this product does.]
          </p>
          <p class="caption" style="color: var(--c-fg-3)">
            [Tagline goes here]
          </p>
        </div>
        <div class="cover-bottom">
          <div class="info-card">
            <div class="info-card-heading">
              Designed by [Studio Name],<br />the precision studio tools lab.
            </div>
            <div class="info-card-body">
              [The world's most carefully considered [product category].]
            </div>
          </div>
          <span class="label muted">Product Design · April 2026</span>
        </div>
      </section>

      <!-- ═══ SLIDE 02 · STATEMENT ══════════════════════════════════════════ -->
      <!-- Wide asymmetric grid: bold claim left, context + bullets right.
           The left column width (1.1fr) gives the headline room to land. -->
      <section class="slide dark slide--statement" data-slide="2">
        <header class="slide-chrome">
          <span class="label muted">The Thesis</span>
          <span class="label muted">02</span>
        </header>
        <div class="slide-body">
          <div class="stmt-headline">
            <span class="kicker">Design Principle</span>
            <h2 class="h1" style="color: var(--c-fg)">
              Every surface is a decision.
            </h2>
          </div>
          <div class="stmt-copy">
            <p class="lead muted">
              The studio environment shapes the work that happens inside it.
              Materials that perform quietly let the maker stay in flow.
            </p>
            <ul class="bullet-list">
              <li>
                Surface texture calibrated for blade resistance without drag
              </li>
              <li>Grip underside prevents slip on any workbench material</li>
              <li>
                Grid lines printed in low-contrast ink — visible without
                competing
              </li>
            </ul>
          </div>
        </div>
        <footer class="slide-foot">
          <span class="label muted">[Studio Name] · Product Brief</span>
          <span class="label muted">Design Studio</span>
        </footer>
      </section>

      <!-- ═══ SLIDE 03 · SPLIT ══════════════════════════════════════════════ -->
      <!-- Three-column layout: headline left, image center, detail bullets right.
           The center column is the visual object — the product in its environment. -->
      <section class="slide dark slide--split" data-slide="3">
        <header class="slide-chrome">
          <span class="label muted">The Object</span>
          <span class="label muted">03</span>
        </header>
        <div class="slide-body">
          <div class="split-left">
            <span class="kicker">Material Detail</span>
            <h2 class="h2" style="color: var(--c-fg)">
              [A one-line description of what this product does.]
            </h2>
            <p class="lead muted">
              A two-layer construction built for the way real studio work
              actually happens.
            </p>
          </div>
          <!-- Image center: full-height placeholder until photography is ready -->
          <div class="split-center">
            <div class="img-placeholder">[Product Image]</div>
          </div>
          <div class="split-right">
            <ul class="bullet-list">
              <li>4mm recycled rubber base — weighted to stay flat</li>
              <li>Natural composite surface — self-healing up to 3000 uses</li>
              <li>Three colorways: Forest, Sand, Charcoal</li>
            </ul>
          </div>
        </div>
        <footer class="slide-foot">
          <span class="label muted">[Studio Name] · Product Brief</span>
          <span class="label muted">Design Studio</span>
        </footer>
      </section>

      <!-- ═══ SLIDE 04 · STATS ══════════════════════════════════════════════ -->
      <!-- Three large numbers separated by vertical dividers.
           The <em> tag inside .mat-stat-val renders in warm orange. -->
      <section class="slide dark slide--stats" data-slide="4">
        <header class="slide-chrome">
          <span class="label muted">By the Numbers</span>
          <span class="label muted">04</span>
        </header>
        <div class="slide-body">
          <!-- Headline above the three stats -->
          <h2
            class="h2"
            style="color: var(--c-fg); margin-bottom: var(--gap-lg)"
          >
            The numbers that define the [product category].
          </h2>
          <!-- Three stat cells — vertical borders between them -->
          <div
            style="display: grid; grid-template-columns: repeat(3, 1fr); gap: 0"
          >
            <div class="mat-stat">
              <div class="mat-stat-val">4.7k</div>
              <div class="mat-stat-label">
                Units sold in the first 90 days of launch, across 12 countries.
              </div>
            </div>
            <div class="mat-stat">
              <div class="mat-stat-val">3.2×</div>
              <div class="mat-stat-label">
                Longer lifespan than the leading competitor in independent
                studio tests.
              </div>
            </div>
            <div class="mat-stat">
              <div class="mat-stat-val">#1</div>
              <div class="mat-stat-label">
                Top-rated [product category] by Studio Supply Journal for two
                consecutive years.
              </div>
            </div>
          </div>
        </div>
        <footer class="slide-foot">
          <span class="label muted">[Studio Name] · Product Brief</span>
          <span class="label muted">Design Studio</span>
        </footer>
      </section>

      <!-- ═══ SLIDE 05 · QUOTE ══════════════════════════════════════════════ -->
      <!-- Chromeless. Full-slide pull quote with warm orange mark.
           Bricolage Grotesque at 3.4vw — weighted, not delicate.
           Attribution stacked below in mono label format. -->
      <section class="slide dark slide--quote" data-slide="5">
        <div class="quote-mark">"</div>
        <div class="quote-text">
          Good design is as little design as possible.
        </div>
        <div class="quote-attr">
          <span class="label accent">Dieter Rams</span>
          <span class="label muted">Designer</span>
        </div>
      </section>

      <!-- ═══ SLIDE 06 · LIST (light) ═══════════════════════════════════════ -->
      <!-- Cream background — the warm inversion of the dark slides.
           Wide left margin holds the headline zone.
           Right 60% holds the bullet list.
           This is the one slide in the deck where light background is used. -->
      <section class="slide light slide--list" data-slide="6">
        <header class="slide-chrome">
          <span class="label" style="color: var(--c-fg-light-3)"
            >Why It Matters</span
          >
          <span class="label" style="color: var(--c-fg-light-3)">06</span>
        </header>
        <div class="slide-body">
          <div class="list-head">
            <span class="kicker">The Case</span>
            <h2 class="h2" style="color: var(--c-fg-light)">
              What a studio tool should do for the maker.
            </h2>
            <p class="lead" style="color: var(--c-fg-light-2)">
              Four principles that informed every material and dimension
              decision in the [product category]'s design.
            </p>
          </div>
          <div class="list-items">
            <ul class="bullet-list">
              <li>Disappear when in use so the work takes all the attention</li>
              <li>
                Improve output quality through surface calibration, not just
                feel
              </li>
              <li>
                Last long enough to become a trusted part of the studio
                environment
              </li>
              <li>
                Be honest about what it is — no branding that competes with the
                work
              </li>
            </ul>
          </div>
        </div>
        <footer class="slide-foot">
          <span class="label" style="color: var(--c-fg-light-3)"
            >[Studio Name] · Product Brief</span
          >
          <span class="label" style="color: var(--c-fg-light-3)"
            >Design Studio</span
          >
        </footer>
      </section>

      <!-- ═══ SLIDE 07 · COMPARE ════════════════════════════════════════════ -->
      <!-- Three-column grid: left panel | 1px divider line | right panel.
           Before label is muted mono. After label gets warm orange accent.
           Each panel has a heading, lead context, and 3 bullets. -->
      <section class="slide dark slide--compare" data-slide="7">
        <header class="slide-chrome">
          <span class="label muted">Before / After</span>
          <span class="label muted">07</span>
        </header>
        <div class="slide-body">
          <div class="compare-panel left">
            <div class="compare-label">The Old Way</div>
            <h3 class="h3" style="color: var(--c-fg)">
              Generic [product category] from a supply catalog.
            </h3>
            <p class="lead muted">
              Works until it does not. Warps in heat, discolors with use, and
              feels like an afterthought.
            </p>
            <ul class="bullet-list" style="--sz-lead: 1.05vw">
              <li>Slips on polished surfaces without a grip layer</li>
              <li>Grooves deepen and skew precision over time</li>
              <li>Replaced every six months on average</li>
            </ul>
          </div>
          <!-- The 1px vertical divider — a CSS column, not a border -->
          <div class="compare-divider-line"></div>
          <div class="compare-panel right">
            <div class="compare-label after">The New Way</div>
            <h3 class="h3" style="color: var(--c-fg)">
              [Product Name], purpose-built.
            </h3>
            <p class="lead muted">
              A surface that gets better with use. The material compresses and
              recovers, keeping edges clean.
            </p>
            <ul class="bullet-list" style="--sz-lead: 1.05vw">
              <li>Self-heals around use lines, keeping the surface flat</li>
              <li>Grip base holds any workbench without adhesives</li>
              <li>
                3000-use tested lifespan — typically 2 to 3 years in daily use
              </li>
            </ul>
          </div>
        </div>
        <footer class="slide-foot">
          <span class="label muted">[Studio Name] · Product Brief</span>
          <span class="label muted">Design Studio</span>
        </footer>
      </section>

      <!-- ═══ SLIDE 08 · CHART ══════════════════════════════════════════════ -->
      <!-- Vertical bar chart. One bar is highlighted in warm orange (.accent).
           Bar heights set inline as percentages of the 30vh bar-track.
           Source attribution at the bottom in DM Mono. -->
      <section class="slide dark slide--chart" data-slide="8">
        <header class="slide-chrome">
          <span class="label muted">Performance</span>
          <span class="label muted">08</span>
        </header>
        <div class="slide-body">
          <div class="chart-header">
            <h2 class="h2" style="color: var(--c-fg)">
              Lifespan by material category.
            </h2>
            <span class="label muted">Units: months of daily studio use</span>
          </div>
          <div class="chart-wrapper">
            <div class="bar-track">
              <!-- PVC Generic -->
              <div class="bar-col">
                <span class="bar-val">6</span>
                <div class="bar-fill" style="height: 20%"></div>
                <span class="bar-x-label">PVC</span>
              </div>
              <!-- Rubber Composite -->
              <div class="bar-col">
                <span class="bar-val">11</span>
                <div class="bar-fill" style="height: 37%"></div>
                <span class="bar-x-label">Rubber</span>
              </div>
              <!-- Glass -->
              <div class="bar-col">
                <span class="bar-val">18</span>
                <div class="bar-fill" style="height: 60%"></div>
                <span class="bar-x-label">Glass</span>
              </div>
              <!-- [Product Name] — accent bar, the highlighted data point -->
              <div class="bar-col">
                <span class="bar-val hi">30</span>
                <div class="bar-fill accent" style="height: 100%"></div>
                <span class="bar-x-label">[Product]</span>
              </div>
              <!-- Leather -->
              <div class="bar-col">
                <span class="bar-val">22</span>
                <div class="bar-fill" style="height: 73%"></div>
                <span class="bar-x-label">Leather</span>
              </div>
            </div>
            <div class="chart-baseline"></div>
          </div>
          <div class="chart-source">
            Source: Independent Material Durability Study · [Studio] Lab 2025
          </div>
        </div>
        <footer class="slide-foot">
          <span class="label muted">[Studio Name] · Product Brief</span>
          <span class="label muted">Design Studio</span>
        </footer>
      </section>

      <!-- ═══ SLIDE 09 · END ════════════════════════════════════════════════ -->
      <!-- Chromeless. Mirrors the cover's four-quadrant energy.
           Left column: kicker + closing headline + lead CTA.
           Right column: info card (cream inset — signature material contrast).
           Bottom foot: label pair, separated by a top border.
           Side label on the right edge echoes Slide 01. -->
      <section
        class="slide dark slide--end"
        data-slide="9"
        style="position: relative"
      >
        <div class="end-main">
          <span class="kicker">Ready to Build</span>
          <h2 class="h1" style="color: var(--c-fg)">
            Start with the right surface.
          </h2>
          <p class="lead muted" style="max-width: 85%">
            Order the [Product Name] at [studio-website.com] or find it at
            select independent supply stores worldwide.
          </p>
        </div>
        <div class="end-side">
          <div class="info-card">
            <div class="info-card-heading">Get in touch.</div>
            <div class="info-card-body">
              hello@[studio-website.com]<br />
              @[studio] on all platforms<br />
              Available in 40+ countries
            </div>
          </div>
        </div>
        <div class="end-foot">
          <span class="label muted">[Studio Name] · 2026</span>
          <span class="label muted">[studio-website.com]</span>
        </div>
      </section>
    </div>
    <!-- /#deck -->

    <nav id="nav-dots" aria-label="Slide navigation"></nav>
    <div id="slide-counter"></div>

    <script>
      /* ── Navigation engine — copied verbatim from skeleton.html ──────── */
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        deck.style.width = "calc(" + total + " * 100vw)";

        /* Build navigation dots — one per slide */
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  </body>
</html>
