edustack/index.html at main · Cartooli/edustack · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>EduStack — Curriculum Hub</title>
  <style>
    /* ========================================= */
    /* PAGE SETUP: Background and base styles   */
    /* ========================================= */
    * {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      padding: 0;
      background-color: #f0f4f8;
      color: #2d3748;
      font-family: Georgia, serif;
      line-height: 1.6;
    }

    /* ========================================= */
    /* HEADER: Top navigation and title         */
    /* ========================================= */
    .header {
      background: linear-gradient(135deg, #2b6cb0, #4299e1);
      color: white;
      padding: 30px 20px;
      text-align: center;
      box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    }

    .header h1 {
      margin: 0;
      font-size: 32px;
      font-weight: normal;
    }

    .header p {
      margin: 10px 0 0;
      font-size: 16px;
      opacity: 0.9;
    }

    /* ========================================= */
    /* NAVIGATION: Links to other pages          */
    /* ========================================= */
    .nav {
      background-color: white;
      padding: 15px 20px;
      text-align: center;
      border-bottom: 1px solid #e2e8f0;
      box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    }

    .nav a {
      color: #2b6cb0;
      text-decoration: none;
      margin: 0 15px;
      padding: 8px 12px;
      border-radius: 4px;
      transition: background-color 0.2s;
    }

    .nav a:hover,
    .nav a:focus {
      background-color: #edf2f7;
      outline: 2px solid #2b6cb0;
      outline-offset: 2px;
    }

    /* ========================================= */
    /* CONTAINER: Main content area              */
    /* ========================================= */
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 30px 20px;
    }

    /* ========================================= */
    /* QUICK START: Today's lesson selector      */
    /* ========================================= */
    .quick-start {
      background-color: white;
      padding: 25px;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.1);
      margin-bottom: 30px;
    }

    .quick-start h2 {
      margin: 0 0 15px;
      color: #2b6cb0;
      font-size: 22px;
    }

    .quick-start-controls {
      display: flex;
      gap: 15px;
      flex-wrap: wrap;
      align-items: center;
    }

    .quick-start select {
      padding: 10px 15px;
      font-size: 16px;
      font-family: Georgia, serif;
      border: 2px solid #cbd5e0;
      border-radius: 4px;
      background-color: white;
      color: #2d3748;
      cursor: pointer;
    }

    .quick-start select:focus {
      outline: 2px solid #2b6cb0;
      outline-offset: 2px;
      border-color: #2b6cb0;
    }

    .btn {
      padding: 10px 20px;
      font-size: 16px;
      font-family: Georgia, serif;
      background-color: #2b6cb0;
      color: white;
      border: none;
      border-radius: 4px;
      cursor: pointer;
      transition: background-color 0.2s;
    }

    .btn:hover,
    .btn:focus {
      background-color: #2c5282;
      outline: 2px solid #2b6cb0;
      outline-offset: 2px;
    }

    .btn:active {
      background-color: #2a4365;
    }

    /* ========================================= */
    /* SEARCH AND FILTER: Find lessons           */
    /* ========================================= */
    .search-filter {
      background-color: white;
      padding: 25px;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.1);
      margin-bottom: 30px;
    }

    .search-filter h2 {
      margin: 0 0 15px;
      color: #2b6cb0;
      font-size: 22px;
    }

    .search-box {
      width: 100%;
      padding: 12px 15px;
      font-size: 16px;
      font-family: Georgia, serif;
      border: 2px solid #cbd5e0;
      border-radius: 4px;
      margin-bottom: 15px;
    }

    .search-box:focus {
      outline: 2px solid #2b6cb0;
      outline-offset: 2px;
      border-color: #2b6cb0;
    }

    .filters {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
    }

    .filter-btn {
      padding: 8px 16px;
      font-size: 14px;
      font-family: Georgia, serif;
      background-color: #edf2f7;
      color: #2d3748;
      border: 2px solid #cbd5e0;
      border-radius: 4px;
      cursor: pointer;
      transition: all 0.2s;
    }

    .filter-btn:hover,
    .filter-btn:focus {
      background-color: #e2e8f0;
      outline: 2px solid #2b6cb0;
      outline-offset: 2px;
    }

    .filter-btn.active {
      background-color: #2b6cb0;
      color: white;
      border-color: #2b6cb0;
    }

    /* ========================================= */
    /* PREP TIME CALCULATOR: Running total       */
    /* ========================================= */
    .prep-calculator {
      background-color: #edf2f7;
      padding: 15px 25px;
      border-radius: 8px;
      margin-bottom: 30px;
      text-align: center;
      border: 2px solid #cbd5e0;
    }

    .prep-calculator strong {
      color: #2b6cb0;
      font-size: 18px;
    }

    /* ========================================= */
    /* LESSON CARDS: Grid of lesson cards        */
    /* ========================================= */
    .lessons-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
      gap: 25px;
      margin-bottom: 40px;
    }

    .lesson-card {
      background-color: white;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.1);
      padding: 25px;
      transition: transform 0.2s, box-shadow 0.2s;
      border: 2px solid transparent;
    }

    .lesson-card:hover {
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    }

    .lesson-card:focus-within {
      border-color: #2b6cb0;
      outline: 2px solid #2b6cb0;
      outline-offset: 2px;
    }

    .lesson-card h3 {
      margin: 0 0 10px;
      color: #2b6cb0;
      font-size: 20px;
    }

    .lesson-meta {
      display: flex;
      gap: 15px;
      margin: 10px 0;
      font-size: 14px;
      color: #718096;
    }

    .lesson-meta span {
      display: flex;
      align-items: center;
      gap: 5px;
    }

    .lesson-description {
      margin: 15px 0;
      color: #4a5568;
      line-height: 1.6;
    }

    .lesson-links {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
      margin-top: 15px;
    }

    .lesson-links a {
      padding: 8px 16px;
      font-size: 14px;
      text-decoration: none;
      border-radius: 4px;
      transition: all 0.2s;
    }

    .link-teacher {
      background-color: #2b6cb0;
      color: white;
    }

    .link-teacher:hover,
    .link-teacher:focus {
      background-color: #2c5282;
      outline: 2px solid #2b6cb0;
      outline-offset: 2px;
    }

    .link-student {
      background-color: #edf2f7;
      color: #2d3748;
      border: 2px solid #cbd5e0;
    }

    .link-student:hover,
    .link-student:focus {
      background-color: #e2e8f0;
      outline: 2px solid #2b6cb0;
      outline-offset: 2px;
    }

    /* ========================================= */
    /* EXAMPLE PREVIEW: Inline iframe            */
    /* ========================================= */
    .example-preview {
      margin-top: 15px;
      border: 2px solid #e2e8f0;
      border-radius: 4px;
      overflow: hidden;
    }

    .example-preview iframe {
      width: 100%;
      height: 300px;
      border: none;
      display: block;
    }

    .example-fallback {
      padding: 20px;
      text-align: center;
      background-color: #edf2f7;
      color: #4a5568;
    }

    .example-fallback a {
      color: #2b6cb0;
      text-decoration: none;
      font-weight: bold;
    }

    .example-fallback a:hover,
    .example-fallback a:focus {
      text-decoration: underline;
      outline: 2px solid #2b6cb0;
      outline-offset: 2px;
    }

    /* ========================================= */
    /* NO RESULTS: Empty state                   */
    /* ========================================= */
    .no-results {
      text-align: center;
      padding: 60px 20px;
      color: #718096;
    }

    .no-results h3 {
      color: #4a5568;
      margin-bottom: 10px;
    }

    /* ========================================= */
    /* FOOTER: Bottom links                     */
    /* ========================================= */
    .footer {
      background-color: white;
      padding: 30px 20px;
      text-align: center;
      border-top: 1px solid #e2e8f0;
      margin-top: 60px;
      color: #718096;
    }

    .footer a {
      color: #2b6cb0;
      text-decoration: none;
      margin: 0 10px;
    }

    .footer a:hover,
    .footer a:focus {
      text-decoration: underline;
      outline: 2px solid #2b6cb0;
      outline-offset: 2px;
    }

    /* ========================================= */
    /* KEYBOARD SHORTCUTS: Visual indicator      */
    /* ========================================= */
    .keyboard-hint {
      font-size: 12px;
      color: #a0aec0;
      margin-top: 10px;
      text-align: center;
    }

    /* ========================================= */
    /* RESPONSIVE: Mobile adjustments            */
    /* ========================================= */
    @media (max-width: 768px) {
      .lessons-grid {
        grid-template-columns: 1fr;
      }

      .quick-start-controls {
        flex-direction: column;
        align-items: stretch;
      }

      .quick-start select,
      .btn {
        width: 100%;
      }

      .filters {
        justify-content: center;
      }
    }

    /* ========================================= */
    /* FOCUS VISIBLE: Keyboard navigation        */
    /* ========================================= */
    *:focus-visible {
      outline: 2px solid #2b6cb0;
      outline-offset: 2px;
    }
  </style>
</head>
<body>
  <!-- Header -->
  <header class="header">
    <h1>🎓 EduStack Curriculum Hub</h1>
    <p>Your guide to teaching web development in middle school</p>
  </header>

  <!-- Navigation -->
  <nav class="nav" role="navigation" aria-label="Main navigation">
    <a href="index.html">Home</a>
    <a href="getting-started.html">Getting Started</a>
    <a href="about.html">About</a>
  </nav>

  <!-- Main Container -->
  <main class="container">
    <!-- Quick Start Section -->
    <section class="quick-start" aria-labelledby="quick-start-heading">
      <h2 id="quick-start-heading">Today's Lesson</h2>
      <div class="quick-start-controls">
        <label for="lesson-select" style="display: none;">Select lesson:</label>
        <select id="lesson-select" aria-label="Select today's lesson">
          <option value="">Choose a lesson...</option>
        </select>
        <button class="btn" id="quick-start-btn" aria-label="Open teacher guide and student skill for selected lesson">
          Start Today's Lesson
        </button>
      </div>
    </section>

    <!-- Search and Filter Section -->
    <section class="search-filter" aria-labelledby="search-heading">
      <h2 id="search-heading">Find Lessons</h2>
      <input
        type="text"
        class="search-box"
        id="search-input"
        placeholder="Search lessons by name, topic, or keyword..."
        aria-label="Search lessons"
      >
      <div class="filters" role="group" aria-label="Filter lessons">
        <button class="filter-btn" data-filter="all">All Lessons</button>
        <button class="filter-btn" data-filter="unit1">Unit 1: Foundations</button>
        <button class="filter-btn" data-filter="unit2">Unit 2: Interactive</button>
        <button class="filter-btn" data-filter="unit3">Unit 3: AI-Assisted</button>
        <button class="filter-btn" data-filter="beginner">Beginner</button>
        <button class="filter-btn" data-filter="intermediate">Intermediate</button>
        <button class="filter-btn" data-filter="advanced">Advanced</button>
      </div>
    </section>

    <!-- Prep Time Calculator -->
    <div class="prep-calculator" id="prep-calculator" role="status" aria-live="polite">
      <strong>Total Prep Time:</strong> <span id="prep-total">0 minutes</span>
    </div>

    <!-- Lessons Grid -->
    <div class="lessons-grid" id="lessons-grid" role="list" aria-label="Curriculum lessons">
      <!-- Lesson cards will be inserted here by JavaScript -->
    </div>

    <!-- No Results Message -->
    <div class="no-results" id="no-results" style="display: none;" role="status">
      <h3>No lessons found</h3>
      <p>Try adjusting your search or filters</p>
    </div>
  </main>

  <!-- Footer -->
  <footer class="footer">
    <p>
      <a href="about.html">About EduStack</a> |
      <a href="getting-started.html">Getting Started</a> |
      <a href="https://github.com/Cartooli/edustack" target="_blank" rel="noopener">GitHub</a>
    </p>
    <p class="keyboard-hint">Tip: Press <kbd>/</kbd> to focus search, arrow keys to navigate, <kbd>Enter</kbd> to open</p>
  </footer>

  <script>
    // =========================================
    // CURRICULUM DATA: All lessons in JSON
    // =========================================
    const curriculumData = [
      {
        id: 1,
        number: "01",
        title: "Hello World",
        unit: "unit1",
        difficulty: "beginner",
        prepTime: 10,
        description: "Students create their first HTML file and learn that web pages are just text files with special tags.",
        builds: "Their first web page",
        teacherGuide: "docs/teacher-guides/LESSON-01.md",
        studentSkill: "skills/learn/SKILL-01-hello-world.md",
        example: "examples/html-basics/index.html",
        keywords: ["html", "basics", "first page", "tags", "structure"]
      },
      {
        id: 2,
        number: "02",
        title: "Style It Up",
        unit: "unit1",
        difficulty: "beginner",
        prepTime: 10,
        description: "Students learn CSS fundamentals — colors, fonts, spacing, and layout.",
        builds: "Styled web page with colors and layout",
        teacherGuide: "docs/teacher-guides/LESSON-02.md",
        studentSkill: "skills/learn/SKILL-02-css-basics.md",
        example: "examples/css-fun/index.html",
        keywords: ["css", "styling", "colors", "layout", "design"]
      },
      {
        id: 3,
        number: "03",
        title: "Make It Move",
        unit: "unit1",
        difficulty: "beginner",
        prepTime: 10,
        description: "Students add CSS animations and transitions to make their pages interactive.",
        builds: "Animated web page with transitions",
        teacherGuide: "docs/teacher-guides/LESSON-03.md",
        studentSkill: "skills/learn/SKILL-03-animations.md",
        example: null,
        keywords: ["css", "animations", "transitions", "motion", "interactive"]
      },
      {
        id: 4,
        number: "04",
        title: "My First Site",
        unit: "unit1",
        difficulty: "beginner",
        prepTime: 15,
        description: "Students combine HTML and CSS to build a complete multi-section personal website.",
        builds: "Personal 'About Me' page",
        teacherGuide: "docs/teacher-guides/LESSON-04.md",
        studentSkill: "skills/learn/SKILL-04-first-site.md",
        example: "examples/css-fun/index.html",
        keywords: ["html", "css", "project", "personal site", "portfolio"]
      },
      {
        id: 5,
        number: "05",
        title: "Click & React",
        unit: "unit2",
        difficulty: "intermediate",
        prepTime: 15,
        description: "Students learn JavaScript basics — variables, functions, and making buttons do things.",
        builds: "Interactive page with buttons and JavaScript",
        teacherGuide: "docs/teacher-guides/LESSON-05.md",
        studentSkill: "skills/learn/SKILL-05-javascript.md",
        example: "examples/js-intro/index.html",
        keywords: ["javascript", "js", "interactive", "buttons", "functions", "variables"]
      },
      {
        id: 6,
        number: "06",
        title: "Data Display",
        unit: "unit2",
        difficulty: "intermediate",
        prepTime: 15,
        description: "Students work with arrays and objects to display data dynamically.",
        builds: "Class weather dashboard",
        teacherGuide: "docs/teacher-guides/LESSON-06.md",
        studentSkill: "skills/learn/SKILL-06-data-display.md",
        example: null,
        keywords: ["javascript", "data", "arrays", "objects", "dashboard", "dynamic"]
      },
      {
        id: 7,
        number: "07",
        title: "Forms & Input",
        unit: "unit2",
        difficulty: "intermediate",
        prepTime: 15,
        description: "Students learn to accept user input through forms and handle it safely.",
        builds: "Feedback form with safe input handling",
        teacherGuide: "docs/teacher-guides/LESSON-07.md",
        studentSkill: "skills/learn/SKILL-07-forms-input.md",
        example: null,
        keywords: ["forms", "input", "validation", "security", "sanitization"]
      },
      {
        id: 8,
        number: "08",
        title: "Mini App",
        unit: "unit2",
        difficulty: "intermediate",
        prepTime: 20,
        description: "Students build a complete interactive app — calculator, quiz, or timer.",
        builds: "Calculator or quiz app",
        teacherGuide: "docs/teacher-guides/LESSON-08.md",
        studentSkill: "skills/learn/SKILL-08-mini-app.md",
        example: null,
        keywords: ["app", "project", "calculator", "quiz", "interactive", "complete"]
      },
      {
        id: 9,
        number: "09",
        title: "Meet Your AI Tutor",
        unit: "unit3",
        difficulty: "advanced",
        prepTime: 15,
        description: "Students learn AI literacy and how to interact with the EduBot AI tutor safely.",
        builds: "Guided AI conversation experience",
        teacherGuide: "docs/teacher-guides/LESSON-09.md",
        studentSkill: "skills/learn/SKILL-09-ai-tutor.md",
        example: "examples/ai-chat/index.html",
        keywords: ["ai", "tutor", "edubot", "literacy", "safety", "conversation"]
      },
      {
        id: 10,
        number: "10",
        title: "AI Helps You Code",
        unit: "unit3",
        difficulty: "advanced",
        prepTime: 15,
        description: "Students learn prompt engineering — how to write clear questions for AI.",
        builds: "AI-assisted web page",
        teacherGuide: "docs/teacher-guides/LESSON-10.md",
        studentSkill: "skills/learn/SKILL-10-ai-coding.md",
        example: null,
        keywords: ["ai", "prompt", "engineering", "coding", "assistance", "questions"]
      },
      {
        id: 11,
        number: "11",
        title: "Debug With AI",
        unit: "unit3",
        difficulty: "advanced",
        prepTime: 15,
        description: "Students learn problem-solving strategies and how to use AI to debug code.",
        builds: "Debugging skills and AI-assisted problem solving",
        teacherGuide: "docs/teacher-guides/LESSON-11.md",
        studentSkill: "skills/learn/SKILL-11-debugging.md",
        example: null,
        keywords: ["debug", "debugging", "problem solving", "ai", "errors", "fix"]
      },
      {
        id: 12,
        number: "12",
        title: "Final Project",
        unit: "unit3",
        difficulty: "advanced",
        prepTime: 20,
        description: "Students design, build, and present a web project of their choice.",
        builds: "Student's choice — full project cycle",
        teacherGuide: "docs/teacher-guides/LESSON-12.md",
        studentSkill: "skills/learn/SKILL-12-final-project.md",
        example: null,
        keywords: ["project", "final", "capstone", "portfolio", "complete", "presentation"]
      }
    ];

    // =========================================
    // STATE: Current filters and search
    // =========================================
    let currentFilter = "all";
    let searchQuery = "";
    let selectedLessons = new Set();

    // =========================================
    // RENDER: Create lesson cards
    // =========================================
    function renderLessons() {
      const grid = document.getElementById("lessons-grid");
      const noResults = document.getElementById("no-results");

      // Filter lessons
      let filtered = curriculumData.filter(lesson => {
        // Unit filter
        if (currentFilter !== "all" && currentFilter !== lesson.unit && currentFilter !== lesson.difficulty) {
          return false;
        }

        // Search filter
        if (searchQuery) {
          const query = searchQuery.toLowerCase();
          const searchable = `${lesson.title} ${lesson.description} ${lesson.builds} ${lesson.keywords.join(" ")}`.toLowerCase();
          if (!searchable.includes(query)) {
            return false;
          }
        }

        return true;
      });

      // Show/hide no results
      if (filtered.length === 0) {
        grid.style.display = "none";
        noResults.style.display = "block";
        return;
      }

      grid.style.display = "grid";
      noResults.style.display = "none";

      // Clear grid
      grid.innerHTML = "";

      // Render cards
      filtered.forEach(lesson => {
        const card = createLessonCard(lesson);
        grid.appendChild(card);
      });

      // Update prep calculator
      updatePrepCalculator();
    }

    // =========================================
    // CREATE: Individual lesson card
    // =========================================
    function createLessonCard(lesson) {
      const card = document.createElement("div");
      card.className = "lesson-card";
      card.setAttribute("role", "listitem");
      card.setAttribute("tabindex", "0");
      card.setAttribute("data-lesson-id", lesson.id);

      // Difficulty badge color
      const difficultyColors = {
        beginner: "#48bb78",
        intermediate: "#ed8936",
        advanced: "#9f7aea"
      };

      const cardHTML = `
        <h3>Lesson ${lesson.number}: ${lesson.title}</h3>
        <div class="lesson-meta">
          <span>⏱️ ${lesson.prepTime} min prep</span>
          <span style="color: ${difficultyColors[lesson.difficulty]}">● ${lesson.difficulty}</span>
        </div>
        <p class="lesson-description">${lesson.description}</p>
        <p style="font-size: 14px; color: #718096; margin: 10px 0;"><strong>Builds:</strong> ${lesson.builds}</p>
        <div class="lesson-links">
          <a href="${lesson.teacherGuide}" class="link-teacher" target="_blank" rel="noopener">Teacher Guide</a>
          <a href="${lesson.studentSkill}" class="link-student" target="_blank" rel="noopener">Student Skill</a>
        </div>
        ${lesson.example ? `
          <div class="example-preview">
            <iframe src="${lesson.example}" title="Example preview for ${lesson.title}" loading="lazy"></iframe>
            <div class="example-fallback" style="display: none;">
              <p>Preview not available. <a href="${lesson.example}" target="_blank" rel="noopener">Open example in new tab</a></p>
            </div>
          </div>
        ` : ""}
      `;

      card.innerHTML = cardHTML;

      // Handle iframe load error
      const iframe = card.querySelector("iframe");
      if (iframe) {
        iframe.onerror = function() {
          iframe.style.display = "none";
          card.querySelector(".example-fallback").style.display = "block";
        };
      }

      // Keyboard navigation
      card.addEventListener("keydown", function(e) {
        if (e.key === "Enter" || e.key === " ") {
          e.preventDefault();
          card.querySelector(".link-teacher")?.click();
        }
      });

      return card;
    }

    // =========================================
    // UPDATE: Prep time calculator
    // =========================================
    function updatePrepCalculator() {
      const visibleLessons = Array.from(document.querySelectorAll(".lesson-card"))
        .map(card => {
          const id = parseInt(card.getAttribute("data-lesson-id"));
          return curriculumData.find(l => l.id === id);
        })
        .filter(Boolean);

      const totalPrep = visibleLessons.reduce((sum, lesson) => sum + lesson.prepTime, 0);
      const prepTotalEl = document.getElementById("prep-total");
      prepTotalEl.textContent = `${totalPrep} minutes`;
    }

    // =========================================
    // SEARCH: Filter by text input
    // =========================================
    const searchInput = document.getElementById("search-input");
    searchInput.addEventListener("input", function(e) {
      searchQuery = e.target.value;
      renderLessons();
    });

    // =========================================
    // FILTER: Filter by unit/difficulty
    // =========================================
    const filterButtons = document.querySelectorAll(".filter-btn");
    filterButtons.forEach(btn => {
      btn.addEventListener("click", function() {
        // Update active state
        filterButtons.forEach(b => b.classList.remove("active"));
        btn.classList.add("active");

        // Update filter
        currentFilter = btn.getAttribute("data-filter");
        renderLessons();
      });
    });

    // =========================================
    // QUICK START: Today's lesson
    // =========================================
    const lessonSelect = document.getElementById("lesson-select");
    const quickStartBtn = document.getElementById("quick-start-btn");

    // Populate lesson select
    curriculumData.forEach(lesson => {
      const option = document.createElement("option");
      option.value = lesson.id;
      option.textContent = `Lesson ${lesson.number}: ${lesson.title}`;
      lessonSelect.appendChild(option);
    });

    // Handle quick start
    quickStartBtn.addEventListener("click", function() {
      const selectedId = lessonSelect.value;
      if (!selectedId) {
        alert("Please select a lesson first.");
        return;
      }

      const lesson = curriculumData.find(l => l.id === parseInt(selectedId));
      if (lesson) {
        // Try to open both files
        // Note: Browsers may block multiple tabs from file:// URLs
        // Fallback: Show links
        try {
          window.open(lesson.teacherGuide, "_blank");
          setTimeout(() => {
            window.open(lesson.studentSkill, "_blank");
          }, 100);
        } catch (e) {
          // Fallback: Show alert with links
          alert(`Open these files:\n\nTeacher Guide: ${lesson.teacherGuide}\nStudent Skill: ${lesson.studentSkill}`);
        }
      }
    });

    // =========================================
    // KEYBOARD SHORTCUTS
    // =========================================
    document.addEventListener("keydown", function(e) {
      // Focus search with /
      if (e.key === "/" && e.target.tagName !== "INPUT" && e.target.tagName !== "TEXTAREA") {
        e.preventDefault();
        searchInput.focus();
      }

      // Escape to clear search
      if (e.key === "Escape" && document.activeElement === searchInput) {
        searchInput.value = "";
        searchQuery = "";
        renderLessons();
        searchInput.blur();
      }
    });

    // =========================================
    // INITIALIZE: Render on page load
    // =========================================
    document.addEventListener("DOMContentLoaded", function() {
      renderLessons();

      // Set "All Lessons" as active
      document.querySelector('.filter-btn[data-filter="all"]').classList.add("active");
    });
  </script>
</body>
</html>