# HTML Slide Template

Complete HTML structure with navigation, tokens, and Chart.js integration.

## Base Structure

```html
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Presentation Title</title>
    <script src="https://cdn.jsdelivr.net/npm/chart.js@4.4.1/dist/chart.umd.min.js"></script>
    <style>
      /* Paste embed-tokens.cjs output here */
      :root {
        --color-primary: #ff6b6b;
        --color-background: #0d0d0d;
        /* ... more tokens */
      }

      /* Base slide styles */
      * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
      }
      body {
        background: var(--color-background);
        color: #fff;
        font-family: var(--typography-font-body, "Inter", sans-serif);
        overflow: hidden;
      }

      /* 16:9 Aspect Ratio Container (desktop) */
      .slide-deck {
        position: relative;
        width: 100vw;
        height: 100vh;
        overflow: hidden;
      }

      @media (min-width: 769px) {
        .slide-deck {
          /* Lock to 16:9 — letterbox if viewport ratio differs */
          max-width: calc(100vh * 16 / 9);
          max-height: calc(100vw * 9 / 16);
          margin: auto;
          position: absolute;
          inset: 0;
        }
      }

      .slide {
        position: absolute;
        width: 100%;
        height: 100%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        text-align: center;
        padding: 60px;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.4s;
        background: var(--color-background);
        overflow: hidden; /* Prevent content overflow */
      }

      .slide.active {
        opacity: 1;
        visibility: visible;
      }

      /* Slide inner wrapper — constrains content within safe area */
      .slide-content {
        width: 100%;
        max-width: 100%;
        max-height: 100%;
        overflow: hidden;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 16px;
      }

      /* Typography */
      h1,
      h2 {
        font-family: var(--typography-font-heading, "Space Grotesk", sans-serif);
      }
      .slide-title {
        font-size: clamp(32px, 6vw, 80px);
        background: var(--primitive-gradient-primary, linear-gradient(135deg, #ff6b6b, #ff8e53));
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        line-height: 1.1;
      }

      /* ===== RESPONSIVE BREAKPOINTS ===== */

      /* Tablet (portrait) */
      @media (max-width: 768px) {
        .slide {
          padding: 32px 24px;
        }
        .slide-title {
          font-size: clamp(28px, 5vw, 48px);
        }
        h2 {
          font-size: clamp(20px, 4vw, 32px);
        }
        p,
        li {
          font-size: clamp(14px, 2.5vw, 18px);
        }
      }

      /* Mobile */
      @media (max-width: 480px) {
        .slide {
          padding: 24px 16px;
        }
        .slide-title {
          font-size: clamp(22px, 6vw, 36px);
        }
        h2 {
          font-size: clamp(18px, 4.5vw, 28px);
        }
        p,
        li {
          font-size: clamp(12px, 3vw, 16px);
        }
        .nav-controls {
          bottom: 16px;
          gap: 12px;
        }
        .nav-btn {
          width: 32px;
          height: 32px;
          font-size: 14px;
        }
      }

      /* Navigation */
      .progress-bar {
        position: fixed;
        top: 0;
        left: 0;
        height: 3px;
        background: var(--color-primary);
        transition: width 0.3s;
        z-index: 1000;
      }
      .nav-controls {
        position: fixed;
        bottom: 30px;
        left: 50%;
        transform: translateX(-50%);
        display: flex;
        align-items: center;
        gap: 20px;
        z-index: 1000;
      }
      .nav-btn {
        background: rgba(255, 255, 255, 0.1);
        border: none;
        color: #fff;
        width: 40px;
        height: 40px;
        border-radius: 50%;
        cursor: pointer;
        font-size: 18px;
      }
      .nav-btn:hover {
        background: rgba(255, 255, 255, 0.2);
      }
      .slide-counter {
        color: rgba(255, 255, 255, 0.6);
        font-size: 14px;
      }
    </style>
  </head>
  <body>
    <!-- Progress Bar -->
    <div class="progress-bar" id="progressBar"></div>

    <!-- Slide Deck Container (16:9 on desktop) -->
    <div class="slide-deck">
      <!-- Slides -->
      <div class="slide active">
        <div class="slide-content">
          <h1 class="slide-title">Title Slide</h1>
          <p>Subtitle or tagline</p>
        </div>
      </div>

      <!-- More slides... (always wrap content in .slide-content) -->
    </div>
    <!-- /.slide-deck -->

    <!-- Navigation -->
    <div class="nav-controls">
      <button class="nav-btn" onclick="prevSlide()">←</button>
      <span class="slide-counter"><span id="current">1</span> / <span id="total">9</span></span>
      <button class="nav-btn" onclick="nextSlide()">→</button>
    </div>

    <script>
      let current = 1;
      const total = document.querySelectorAll(".slide").length;
      document.getElementById("total").textContent = total;

      function showSlide(n) {
        if (n < 1) n = 1;
        if (n > total) n = total;
        current = n;
        document.querySelectorAll(".slide").forEach((s, i) => {
          s.classList.toggle("active", i === n - 1);
        });
        document.getElementById("current").textContent = n;
        document.getElementById("progressBar").style.width = (n / total) * 100 + "%";
      }

      function nextSlide() {
        showSlide(current + 1);
      }
      function prevSlide() {
        showSlide(current - 1);
      }

      document.addEventListener("keydown", (e) => {
        if (e.key === "ArrowRight" || e.key === " ") {
          e.preventDefault();
          nextSlide();
        }
        if (e.key === "ArrowLeft") {
          e.preventDefault();
          prevSlide();
        }
      });

      document.addEventListener("click", (e) => {
        if (!e.target.closest(".nav-controls")) nextSlide();
      });

      showSlide(1);
    </script>
  </body>
</html>
```

## Chart.js Integration

```html
<div class="chart-container" style="width: min(80%, 600px); height: clamp(200px, 40vh, 350px);">
  <canvas id="revenueChart"></canvas>
</div>

<script>
  new Chart(document.getElementById("revenueChart"), {
    type: "line", // or 'bar', 'doughnut', 'radar'
    data: {
      labels: ["Sep", "Oct", "Nov", "Dec"],
      datasets: [
        {
          label: "MRR ($K)",
          data: [5, 12, 28, 45],
          borderColor: "#FF6B6B",
          backgroundColor: "rgba(255, 107, 107, 0.1)",
          borderWidth: 3,
          fill: true,
          tension: 0.4,
        },
      ],
    },
    options: {
      responsive: true,
      maintainAspectRatio: false,
      plugins: { legend: { display: false } },
      scales: {
        x: { grid: { color: "rgba(255,255,255,0.05)" }, ticks: { color: "#B8B8D0" } },
        y: { grid: { color: "rgba(255,255,255,0.05)" }, ticks: { color: "#B8B8D0" } },
      },
    },
  });
</script>
```

## Animation Classes

```css
/* Fade Up */
.animate-fade-up {
  animation: fadeUp 0.6s ease-out forwards;
  opacity: 0;
}
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Count Animation */
.animate-count {
  animation: countUp 1s ease-out forwards;
}

/* Scale */
.animate-scale {
  animation: scaleIn 0.5s ease-out forwards;
}
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Stagger Children */
.animate-stagger > * {
  opacity: 0;
  animation: fadeUp 0.5s ease-out forwards;
}
.animate-stagger > *:nth-child(1) {
  animation-delay: 0.1s;
}
.animate-stagger > *:nth-child(2) {
  animation-delay: 0.2s;
}
.animate-stagger > *:nth-child(3) {
  animation-delay: 0.3s;
}
.animate-stagger > *:nth-child(4) {
  animation-delay: 0.4s;
}
```

## Background Images

```html
<div class="slide slide-with-bg" style="background-image: url('https://images.pexels.com/...')">
  <div
    class="overlay"
    style="background: linear-gradient(135deg, rgba(13,13,13,0.9), rgba(13,13,13,0.7))"
  ></div>
  <div class="content" style="position: relative; z-index: 1;">
    <!-- Slide content -->
  </div>
</div>
```

## CSS Variables Reference

| Variable                       | Usage                           |
| ------------------------------ | ------------------------------- |
| `--color-primary`              | Brand primary (CTA, highlights) |
| `--color-background`           | Slide background                |
| `--color-secondary`            | Secondary elements              |
| `--primitive-gradient-primary` | Title gradients                 |
| `--typography-font-heading`    | Headlines                       |
| `--typography-font-body`       | Body text                       |
