From edb8fd667349ac73586804c4e2465f1b28a1d450 Mon Sep 17 00:00:00 2001
From: Jens Luedicke <jens@luedicke.me>
Date: Thu, 3 Jul 2025 12:14:48 +0200
Subject: [PATCH] Enable Project categorization.

---
 templates/admin_projects.html       | 523 ++++++++++++++++++-
 templates/analytics.html            |   2 +-
 templates/create_project.html       |  13 +
 templates/edit_project.html         |  15 +
 templates/manage_project_tasks.html | 783 ++++++++++++++++++++++++++++
 5 files changed, 1328 insertions(+), 8 deletions(-)
 create mode 100644 templates/manage_project_tasks.html

diff --git a/templates/admin_projects.html b/templates/admin_projects.html
index 795b0e7..eecef2e 100644
--- a/templates/admin_projects.html
+++ b/templates/admin_projects.html
@@ -1,10 +1,46 @@
 {% extends "layout.html" %}
 
 {% block content %}
-<div class="timetrack-container">
+<div class="timetrack-container admin-projects-container">
     <div class="admin-header">
         <h2>Project Management</h2>
-        <a href="{{ url_for('create_project') }}" class="btn btn-success">Create New Project</a>
+        <div class="admin-actions">
+            <a href="{{ url_for('create_project') }}" class="btn btn-success">Create New Project</a>
+            <button id="manage-categories-btn" class="btn btn-info">Manage Categories</button>
+        </div>
+    </div>
+
+    <!-- Project Categories Section -->
+    <div id="categories-section" class="categories-section" style="display: none;">
+        <div class="section-header">
+            <h3>Project Categories</h3>
+            <button id="create-category-btn" class="btn btn-success btn-sm">Create Category</button>
+        </div>
+
+        <div class="categories-grid">
+            {% for category in categories %}
+            <div class="category-card" data-category-id="{{ category.id }}">
+                <div class="category-header" style="background-color: {{ category.color }}20; border-left: 4px solid {{ category.color }};">
+                    <div class="category-title">
+                        <span class="category-icon">{{ category.icon or '📁' }}</span>
+                        <span class="category-name">{{ category.name }}</span>
+                    </div>
+                    <div class="category-actions">
+                        <button class="edit-category-btn btn btn-xs btn-primary" data-id="{{ category.id }}">Edit</button>
+                        <button class="delete-category-btn btn btn-xs btn-danger" data-id="{{ category.id }}">Delete</button>
+                    </div>
+                </div>
+                <div class="category-body">
+                    <p class="category-description">{{ category.description or 'No description' }}</p>
+                    <small class="category-projects">{{ category.projects|length }} project(s)</small>
+                </div>
+            </div>
+            {% else %}
+            <div class="no-categories">
+                <p>No categories created yet. <button id="first-category-btn" class="btn btn-link">Create your first category</button>.</p>
+            </div>
+            {% endfor %}
+        </div>
     </div>
 
     {% if projects %}
@@ -14,6 +50,7 @@
                 <tr>
                     <th>Code</th>
                     <th>Name</th>
+                    <th>Category</th>
                     <th>Team</th>
                     <th>Status</th>
                     <th>Start Date</th>
@@ -28,6 +65,15 @@
                 <tr class="{% if not project.is_active %}inactive-project{% endif %}">
                     <td><strong>{{ project.code }}</strong></td>
                     <td>{{ project.name }}</td>
+                    <td>
+                        {% if project.category %}
+                            <span class="category-badge" style="background-color: {{ project.category.color }}20; color: {{ project.category.color }};">
+                                {{ project.category.icon or '📁' }} {{ project.category.name }}
+                            </span>
+                        {% else %}
+                            <em>No category</em>
+                        {% endif %}
+                    </td>
                     <td>
                         {% if project.team %}
                             {{ project.team.name }}
@@ -46,7 +92,8 @@
                     <td>{{ project.time_entries|length }}</td>
                     <td class="actions">
                         <a href="{{ url_for('edit_project', project_id=project.id) }}" class="btn btn-sm btn-primary">Edit</a>
-                        {% if g.user.role.name == 'ADMIN' and project.time_entries|length == 0 %}
+                        <a href="{{ url_for('manage_project_tasks', project_id=project.id) }}" class="btn btn-sm btn-info">Tasks</a>
+                        {% if g.user.role == Role.ADMIN and project.time_entries|length == 0 %}
                         <form method="POST" action="{{ url_for('delete_project', project_id=project.id) }}" style="display: inline;"
                               onsubmit="return confirm('Are you sure you want to delete this project?')">
                             <button type="submit" class="btn btn-sm btn-danger">Delete</button>
@@ -68,14 +115,82 @@
 <style>
 /* Override container width for admin projects page */
 .admin-projects-container {
-    max-width: 1200px !important;
-    width: auto !important;
-    padding: 1.5rem !important;
-    margin: 0 auto 2rem auto !important;
+    max-width: none !important;
+    width: 100% !important;
+    padding: 1rem !important;
+    margin: 0 !important;
 }
 
 .projects-table {
     overflow-x: auto;
+    width: 100%;
+}
+
+.projects-table table {
+    width: 100%;
+    min-width: 1200px; /* Ensure table is wide enough for all columns */
+    table-layout: auto;
+}
+
+/* Optimize column widths */
+.projects-table th:nth-child(1), /* Code */
+.projects-table td:nth-child(1) {
+    width: 8%;
+    min-width: 80px;
+}
+
+.projects-table th:nth-child(2), /* Name */
+.projects-table td:nth-child(2) {
+    width: 20%;
+    min-width: 150px;
+}
+
+.projects-table th:nth-child(3), /* Category */
+.projects-table td:nth-child(3) {
+    width: 12%;
+    min-width: 120px;
+}
+
+.projects-table th:nth-child(4), /* Team */
+.projects-table td:nth-child(4) {
+    width: 12%;
+    min-width: 100px;
+}
+
+.projects-table th:nth-child(5), /* Status */
+.projects-table td:nth-child(5) {
+    width: 8%;
+    min-width: 80px;
+}
+
+.projects-table th:nth-child(6), /* Start Date */
+.projects-table td:nth-child(6) {
+    width: 10%;
+    min-width: 100px;
+}
+
+.projects-table th:nth-child(7), /* End Date */
+.projects-table td:nth-child(7) {
+    width: 10%;
+    min-width: 100px;
+}
+
+.projects-table th:nth-child(8), /* Created By */
+.projects-table td:nth-child(8) {
+    width: 10%;
+    min-width: 100px;
+}
+
+.projects-table th:nth-child(9), /* Time Entries */
+.projects-table td:nth-child(9) {
+    width: 8%;
+    min-width: 80px;
+}
+
+.projects-table th:nth-child(10), /* Actions */
+.projects-table td:nth-child(10) {
+    width: 12%;
+    min-width: 200px;
 }
 
 .inactive-project {
@@ -101,6 +216,18 @@
 
 .actions {
     white-space: nowrap;
+    min-width: 180px; /* Ensure enough space for buttons */
+}
+
+.actions .btn {
+    margin-right: 0.5rem;
+    margin-bottom: 0.25rem;
+}
+
+.actions .btn-sm {
+    padding: 0.375rem 0.75rem;
+    font-size: 0.875rem;
+    min-width: 60px; /* Consistent button widths */
 }
 
 /* Button definitions now in main style.css */
@@ -110,5 +237,387 @@
     padding: 3rem;
     color: #666;
 }
+
+/* Category Management Styles */
+.admin-actions {
+    display: flex;
+    gap: 1rem;
+    align-items: center;
+}
+
+.categories-section {
+    background: #f8f9fa;
+    padding: 1.5rem;
+    margin-bottom: 2rem;
+    border-radius: 8px;
+    border: 1px solid #dee2e6;
+}
+
+.section-header {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    margin-bottom: 1rem;
+}
+
+.categories-grid {
+    display: grid;
+    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
+    gap: 1rem;
+}
+
+.category-card {
+    background: white;
+    border-radius: 8px;
+    border: 1px solid #dee2e6;
+    overflow: hidden;
+    transition: box-shadow 0.2s ease;
+}
+
+.category-card:hover {
+    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
+}
+
+.category-header {
+    padding: 1rem;
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+}
+
+.category-title {
+    display: flex;
+    align-items: center;
+    gap: 0.5rem;
+    font-weight: 500;
+}
+
+.category-icon {
+    font-size: 1.2rem;
+}
+
+.category-actions {
+    display: flex;
+    gap: 0.5rem;
+}
+
+.category-body {
+    padding: 0 1rem 1rem;
+}
+
+.category-description {
+    margin: 0 0 0.5rem 0;
+    color: #666;
+    font-size: 0.9rem;
+}
+
+.category-projects {
+    color: #999;
+    font-size: 0.8rem;
+}
+
+.category-badge {
+    padding: 0.25rem 0.5rem;
+    border-radius: 4px;
+    font-size: 0.8rem;
+    font-weight: 500;
+    border: 1px solid currentColor;
+}
+
+.no-categories {
+    grid-column: 1 / -1;
+    text-align: center;
+    padding: 2rem;
+    color: #666;
+}
+
+.btn.btn-xs {
+    padding: 0.25rem 0.5rem;
+    font-size: 0.8rem;
+    min-width: 50px;
+}
+
+/* Consistent button styling across the interface */
+.btn-info {
+    background-color: #17a2b8;
+    border-color: #17a2b8;
+    color: white;
+}
+
+.btn-info:hover {
+    background-color: #138496;
+    border-color: #117a8b;
+}
+
+.btn-success {
+    background-color: #28a745;
+    border-color: #28a745;
+}
+
+.btn-success:hover {
+    background-color: #218838;
+    border-color: #1e7e34;
+}
+
+.section-header .btn {
+    padding: 0.5rem 1rem;
+    font-size: 0.9rem;
+}
+
+.category-actions .btn {
+    padding: 0.25rem 0.75rem;
+    font-size: 0.8rem;
+    min-width: 55px;
+}
+
+/* Make the "Manage Categories" button more prominent */
+#manage-categories-btn {
+    padding: 0.5rem 1.25rem;
+    font-size: 0.95rem;
+    font-weight: 500;
+}
+
+.color-input-group {
+    display: flex;
+    gap: 0.5rem;
+    align-items: center;
+}
+
+.color-input-group input[type="color"] {
+    width: 50px;
+    height: 38px;
+    border: none;
+    border-radius: 4px;
+    cursor: pointer;
+}
+
+.color-input-group input[type="text"] {
+    flex: 1;
+}
+
+.modal-actions {
+    display: flex;
+    gap: 1rem;
+    justify-content: flex-end;
+    margin-top: 1.5rem;
+}
+
+/* Responsive improvements */
+@media (max-width: 768px) {
+    .admin-actions {
+        flex-direction: column;
+        gap: 0.5rem;
+    }
+
+    .admin-actions .btn {
+        width: 100%;
+    }
+
+    .projects-table table {
+        min-width: 800px; /* Smaller minimum on mobile */
+    }
+
+    .categories-grid {
+        grid-template-columns: 1fr; /* Single column on mobile */
+    }
+}
+
+/* Better spacing for action buttons */
+.actions form {
+    display: inline-block;
+    margin: 0;
+}
+
+.actions .btn + .btn,
+.actions .btn + form {
+    margin-left: 0.25rem;
+}
 </style>
+
+<!-- Category Management Modal -->
+<div id="category-modal" class="modal" style="display: none;">
+    <div class="modal-content">
+        <span class="close">&times;</span>
+        <h3 id="category-modal-title">Create Category</h3>
+        <form id="category-form">
+            <input type="hidden" id="category-id" name="category_id">
+            <div class="form-group">
+                <label for="category-name">Name:</label>
+                <input type="text" id="category-name" name="name" required maxlength="100">
+            </div>
+            <div class="form-group">
+                <label for="category-description">Description:</label>
+                <textarea id="category-description" name="description" rows="3"></textarea>
+            </div>
+            <div class="form-group">
+                <label for="category-color">Color:</label>
+                <div class="color-input-group">
+                    <input type="color" id="category-color" name="color" value="#007bff">
+                    <input type="text" id="category-color-text" name="color_text" value="#007bff" maxlength="7">
+                </div>
+            </div>
+            <div class="form-group">
+                <label for="category-icon">Icon (emoji or text):</label>
+                <input type="text" id="category-icon" name="icon" maxlength="10" placeholder="📁">
+                <small>Use emojis or short text like 📁, 🎯, 💼, etc.</small>
+            </div>
+            <div class="modal-actions">
+                <button type="submit" class="btn btn-primary">Save Category</button>
+                <button type="button" class="btn btn-secondary" id="cancel-category">Cancel</button>
+            </div>
+        </form>
+    </div>
+</div>
+
+<script>
+document.addEventListener('DOMContentLoaded', function() {
+    const manageCategoriesBtn = document.getElementById('manage-categories-btn');
+    const categoriesSection = document.getElementById('categories-section');
+    const categoryModal = document.getElementById('category-modal');
+    const categoryForm = document.getElementById('category-form');
+    const createCategoryBtn = document.getElementById('create-category-btn');
+    const firstCategoryBtn = document.getElementById('first-category-btn');
+    const colorInput = document.getElementById('category-color');
+    const colorTextInput = document.getElementById('category-color-text');
+
+    // Toggle categories section
+    manageCategoriesBtn.addEventListener('click', function() {
+        const isVisible = categoriesSection.style.display !== 'none';
+        categoriesSection.style.display = isVisible ? 'none' : 'block';
+        this.textContent = isVisible ? 'Manage Categories' : 'Hide Categories';
+    });
+
+    // Sync color inputs
+    colorInput.addEventListener('change', function() {
+        colorTextInput.value = this.value;
+    });
+
+    colorTextInput.addEventListener('change', function() {
+        if (/^#[0-9A-F]{6}$/i.test(this.value)) {
+            colorInput.value = this.value;
+        }
+    });
+
+    // Open create category modal
+    function openCategoryModal(categoryData = null) {
+        const isEdit = categoryData !== null;
+        document.getElementById('category-modal-title').textContent = isEdit ? 'Edit Category' : 'Create Category';
+
+        if (isEdit) {
+            document.getElementById('category-id').value = categoryData.id;
+            document.getElementById('category-name').value = categoryData.name;
+            document.getElementById('category-description').value = categoryData.description || '';
+            document.getElementById('category-color').value = categoryData.color;
+            document.getElementById('category-color-text').value = categoryData.color;
+            document.getElementById('category-icon').value = categoryData.icon || '';
+        } else {
+            categoryForm.reset();
+            document.getElementById('category-id').value = '';
+            document.getElementById('category-color').value = '#007bff';
+            document.getElementById('category-color-text').value = '#007bff';
+        }
+
+        categoryModal.style.display = 'block';
+    }
+
+    createCategoryBtn?.addEventListener('click', () => openCategoryModal());
+    firstCategoryBtn?.addEventListener('click', () => openCategoryModal());
+
+    // Edit category buttons
+    document.querySelectorAll('.edit-category-btn').forEach(btn => {
+        btn.addEventListener('click', function() {
+            const categoryId = this.getAttribute('data-id');
+            // Get category data from the card
+            const card = this.closest('.category-card');
+            const categoryData = {
+                id: categoryId,
+                name: card.querySelector('.category-name').textContent,
+                description: card.querySelector('.category-description').textContent,
+                color: card.querySelector('.category-header').style.borderLeftColor || '#007bff',
+                icon: card.querySelector('.category-icon').textContent
+            };
+            openCategoryModal(categoryData);
+        });
+    });
+
+    // Delete category buttons
+    document.querySelectorAll('.delete-category-btn').forEach(btn => {
+        btn.addEventListener('click', function() {
+            const categoryId = this.getAttribute('data-id');
+            if (confirm('Are you sure you want to delete this category? Projects using this category will be unassigned.')) {
+                fetch(`/api/admin/categories/${categoryId}`, {
+                    method: 'DELETE'
+                })
+                .then(response => response.json())
+                .then(data => {
+                    if (data.success) {
+                        location.reload();
+                    } else {
+                        alert('Error: ' + data.message);
+                    }
+                })
+                .catch(error => {
+                    console.error('Error:', error);
+                    alert('An error occurred while deleting the category');
+                });
+            }
+        });
+    });
+
+    // Close modal
+    document.querySelector('#category-modal .close').addEventListener('click', function() {
+        categoryModal.style.display = 'none';
+    });
+
+    document.getElementById('cancel-category').addEventListener('click', function() {
+        categoryModal.style.display = 'none';
+    });
+
+    // Submit category form
+    categoryForm.addEventListener('submit', function(e) {
+        e.preventDefault();
+
+        const formData = new FormData(this);
+        const categoryId = formData.get('category_id');
+        const isEdit = categoryId !== '';
+
+        const url = isEdit ? `/api/admin/categories/${categoryId}` : '/api/admin/categories';
+        const method = isEdit ? 'PUT' : 'POST';
+
+        fetch(url, {
+            method: method,
+            headers: {
+                'Content-Type': 'application/json',
+            },
+            body: JSON.stringify({
+                name: formData.get('name'),
+                description: formData.get('description'),
+                color: formData.get('color'),
+                icon: formData.get('icon')
+            })
+        })
+        .then(response => response.json())
+        .then(data => {
+            if (data.success) {
+                categoryModal.style.display = 'none';
+                location.reload();
+            } else {
+                alert('Error: ' + data.message);
+            }
+        })
+        .catch(error => {
+            console.error('Error:', error);
+            alert('An error occurred while saving the category');
+        });
+    });
+
+    // Close modal when clicking outside
+    window.addEventListener('click', function(event) {
+        if (event.target === categoryModal) {
+            categoryModal.style.display = 'none';
+        }
+    });
+});
+</script>
+
 {% endblock %}
\ No newline at end of file
diff --git a/templates/analytics.html b/templates/analytics.html
index d56bbb7..e84f78c 100644
--- a/templates/analytics.html
+++ b/templates/analytics.html
@@ -7,7 +7,7 @@
         <div class="mode-switcher">
             <button class="mode-btn {% if mode == 'personal' %}active{% endif %}" 
                     onclick="switchMode('personal')">Personal</button>
-            {% if g.user.team_id and g.user.role.value in ['Team Leader', 'Supervisor', 'Administrator'] %}
+            {% if g.user.team_id and g.user.role in [Role.TEAM_LEADER, Role.SUPERVISOR, Role.ADMIN] %}
             <button class="mode-btn {% if mode == 'team' %}active{% endif %}" 
                     onclick="switchMode('team')">Team</button>
             {% endif %}
diff --git a/templates/create_project.html b/templates/create_project.html
index 86d3657..3e1b6fc 100644
--- a/templates/create_project.html
+++ b/templates/create_project.html
@@ -40,6 +40,19 @@
                     {% endfor %}
                 </select>
             </div>
+            
+            <div class="form-group">
+                <label for="category_id">Project Category</label>
+                <select id="category_id" name="category_id">
+                    <option value="">No Category</option>
+                    {% for category in categories %}
+                    <option value="{{ category.id }}" 
+                            {% if request.form.category_id and request.form.category_id|int == category.id %}selected{% endif %}>
+                        {{ category.icon or '📁' }} {{ category.name }}
+                    </option>
+                    {% endfor %}
+                </select>
+            </div>
         </div>
         
         <div class="form-row">
diff --git a/templates/edit_project.html b/templates/edit_project.html
index 5162cd6..c81ac68 100644
--- a/templates/edit_project.html
+++ b/templates/edit_project.html
@@ -41,6 +41,21 @@
                 </select>
             </div>
             
+            <div class="form-group">
+                <label for="category_id">Project Category</label>
+                <select id="category_id" name="category_id">
+                    <option value="">No Category</option>
+                    {% for category in categories %}
+                    <option value="{{ category.id }}" 
+                            {% if (request.form.category_id and request.form.category_id|int == category.id) or (not request.form.category_id and project.category_id == category.id) %}selected{% endif %}>
+                        {{ category.icon or '📁' }} {{ category.name }}
+                    </option>
+                    {% endfor %}
+                </select>
+            </div>
+        </div>
+        
+        <div class="form-row">
             <div class="form-group">
                 <label class="checkbox-label">
                     <input type="checkbox" name="is_active" 
diff --git a/templates/manage_project_tasks.html b/templates/manage_project_tasks.html
new file mode 100644
index 0000000..d281997
--- /dev/null
+++ b/templates/manage_project_tasks.html
@@ -0,0 +1,783 @@
+{% extends "layout.html" %}
+
+{% block content %}
+<div class="timetrack-container">
+    <div class="task-header">
+        <div class="project-info">
+            <h2>Tasks for Project: {{ project.code }} - {{ project.name }}</h2>
+            <p class="project-description">{{ project.description or 'No description available' }}</p>
+            {% if project.category %}
+            <span class="category-badge" style="background-color: {{ project.category.color }}20; color: {{ project.category.color }};">
+                {{ project.category.icon or '📁' }} {{ project.category.name }}
+            </span>
+            {% endif %}
+        </div>
+        <div class="task-actions">
+            <button id="create-task-btn" class="btn btn-success">Create New Task</button>
+            <a href="{{ url_for('admin_projects') }}" class="btn btn-secondary">Back to Projects</a>
+        </div>
+    </div>
+
+    <!-- Task Statistics -->
+    <div class="task-stats">
+        <div class="stat-card">
+            <h3>{{ tasks|length }}</h3>
+            <p>Total Tasks</p>
+        </div>
+        <div class="stat-card">
+            <h3>{{ tasks|selectattr('status.value', 'equalto', 'Completed')|list|length }}</h3>
+            <p>Completed</p>
+        </div>
+        <div class="stat-card">
+            <h3>{{ tasks|selectattr('status.value', 'equalto', 'In Progress')|list|length }}</h3>
+            <p>In Progress</p>
+        </div>
+        <div class="stat-card">
+            <h3>{{ tasks|selectattr('status.value', 'equalto', 'Not Started')|list|length }}</h3>
+            <p>Not Started</p>
+        </div>
+    </div>
+
+    <!-- Task List -->
+    {% if tasks %}
+    <div class="tasks-section">
+        <h3>Project Tasks</h3>
+        <div class="tasks-container">
+            {% for task in tasks %}
+            <div class="task-card" data-task-id="{{ task.id }}">
+                <div class="task-header">
+                    <div class="task-title-area">
+                        <h4 class="task-name">{{ task.name }}</h4>
+                        <div class="task-meta">
+                            <span class="status-badge status-{{ task.status.value.lower().replace(' ', '-') }}">
+                                {{ task.status.value }}
+                            </span>
+                            <span class="priority-badge priority-{{ task.priority.value.lower() }}">
+                                {{ task.priority.value }}
+                            </span>
+                        </div>
+                    </div>
+                    <div class="task-actions">
+                        <button class="btn btn-xs btn-primary edit-task-btn" data-id="{{ task.id }}">Edit</button>
+                        <button class="btn btn-xs btn-info add-subtask-btn" data-id="{{ task.id }}">Add Subtask</button>
+                        <button class="btn btn-xs btn-danger delete-task-btn" data-id="{{ task.id }}">Delete</button>
+                    </div>
+                </div>
+                
+                <div class="task-body">
+                    <p class="task-description">{{ task.description or 'No description' }}</p>
+                    
+                    <div class="task-details">
+                        <div class="task-detail">
+                            <strong>Assigned to:</strong> 
+                            {% if task.assigned_to %}
+                                {{ task.assigned_to.username }}
+                            {% else %}
+                                <em>Unassigned</em>
+                            {% endif %}
+                        </div>
+                        <div class="task-detail">
+                            <strong>Due Date:</strong> 
+                            {% if task.due_date %}
+                                {{ task.due_date.strftime('%Y-%m-%d') }}
+                            {% else %}
+                                <em>No due date</em>
+                            {% endif %}
+                        </div>
+                        <div class="task-detail">
+                            <strong>Estimated Hours:</strong> 
+                            {% if task.estimated_hours %}
+                                {{ task.estimated_hours }}h
+                            {% else %}
+                                <em>Not estimated</em>
+                            {% endif %}
+                        </div>
+                        <div class="task-detail">
+                            <strong>Time Logged:</strong> 
+                            {{ (task.total_time_logged / 3600)|round(1) }}h
+                        </div>
+                    </div>
+
+                    <!-- Progress Bar -->
+                    <div class="progress-section">
+                        <div class="progress-info">
+                            <span>Progress: {{ task.progress_percentage }}%</span>
+                        </div>
+                        <div class="progress-bar">
+                            <div class="progress-fill" style="width: {{ task.progress_percentage }}%;"></div>
+                        </div>
+                    </div>
+
+                    <!-- Subtasks -->
+                    {% if task.subtasks %}
+                    <div class="subtasks-section">
+                        <h5>Subtasks ({{ task.subtasks|length }})</h5>
+                        <div class="subtasks-list">
+                            {% for subtask in task.subtasks %}
+                            <div class="subtask-item" data-subtask-id="{{ subtask.id }}">
+                                <div class="subtask-content">
+                                    <span class="subtask-name">{{ subtask.name }}</span>
+                                    <span class="status-badge status-{{ subtask.status.value.lower().replace(' ', '-') }}">
+                                        {{ subtask.status.value }}
+                                    </span>
+                                    {% if subtask.assigned_to %}
+                                    <span class="subtask-assignee">{{ subtask.assigned_to.username }}</span>
+                                    {% endif %}
+                                </div>
+                                <div class="subtask-actions">
+                                    <button class="btn btn-xs btn-primary edit-subtask-btn" data-id="{{ subtask.id }}">Edit</button>
+                                    <button class="btn btn-xs btn-danger delete-subtask-btn" data-id="{{ subtask.id }}">Delete</button>
+                                </div>
+                            </div>
+                            {% endfor %}
+                        </div>
+                    </div>
+                    {% endif %}
+                </div>
+            </div>
+            {% endfor %}
+        </div>
+    </div>
+    {% else %}
+    <div class="no-tasks">
+        <div class="no-tasks-content">
+            <h3>No Tasks Created Yet</h3>
+            <p>Start organizing your project by creating tasks.</p>
+            <button id="create-first-task-btn" class="btn btn-primary">Create Your First Task</button>
+        </div>
+    </div>
+    {% endif %}
+</div>
+
+<!-- Task Creation/Edit Modal -->
+<div id="task-modal" class="modal" style="display: none;">
+    <div class="modal-content">
+        <span class="close">&times;</span>
+        <h3 id="task-modal-title">Create Task</h3>
+        <form id="task-form">
+            <input type="hidden" id="task-id" name="task_id">
+            <input type="hidden" id="project-id" name="project_id" value="{{ project.id }}">
+            
+            <div class="form-group">
+                <label for="task-name">Task Name *</label>
+                <input type="text" id="task-name" name="name" required maxlength="200">
+            </div>
+            
+            <div class="form-group">
+                <label for="task-description">Description</label>
+                <textarea id="task-description" name="description" rows="3"></textarea>
+            </div>
+            
+            <div class="form-row">
+                <div class="form-group">
+                    <label for="task-status">Status</label>
+                    <select id="task-status" name="status">
+                        <option value="Not Started">Not Started</option>
+                        <option value="In Progress">In Progress</option>
+                        <option value="On Hold">On Hold</option>
+                        <option value="Completed">Completed</option>
+                        <option value="Cancelled">Cancelled</option>
+                    </select>
+                </div>
+                
+                <div class="form-group">
+                    <label for="task-priority">Priority</label>
+                    <select id="task-priority" name="priority">
+                        <option value="Low">Low</option>
+                        <option value="Medium" selected>Medium</option>
+                        <option value="High">High</option>
+                        <option value="Urgent">Urgent</option>
+                    </select>
+                </div>
+            </div>
+            
+            <div class="form-row">
+                <div class="form-group">
+                    <label for="task-assigned-to">Assigned To</label>
+                    <select id="task-assigned-to" name="assigned_to_id">
+                        <option value="">Unassigned</option>
+                        {% for user in team_members %}
+                        <option value="{{ user.id }}">{{ user.username }}</option>
+                        {% endfor %}
+                    </select>
+                </div>
+                
+                <div class="form-group">
+                    <label for="task-estimated-hours">Estimated Hours</label>
+                    <input type="number" id="task-estimated-hours" name="estimated_hours" step="0.5" min="0">
+                </div>
+            </div>
+            
+            <div class="form-row">
+                <div class="form-group">
+                    <label for="task-start-date">Start Date</label>
+                    <input type="date" id="task-start-date" name="start_date">
+                </div>
+                
+                <div class="form-group">
+                    <label for="task-due-date">Due Date</label>
+                    <input type="date" id="task-due-date" name="due_date">
+                </div>
+            </div>
+            
+            <div class="modal-actions">
+                <button type="submit" class="btn btn-primary">Save Task</button>
+                <button type="button" class="btn btn-secondary" id="cancel-task">Cancel</button>
+            </div>
+        </form>
+    </div>
+</div>
+
+<!-- Subtask Creation/Edit Modal -->
+<div id="subtask-modal" class="modal" style="display: none;">
+    <div class="modal-content">
+        <span class="close">&times;</span>
+        <h3 id="subtask-modal-title">Create Subtask</h3>
+        <form id="subtask-form">
+            <input type="hidden" id="subtask-id" name="subtask_id">
+            <input type="hidden" id="parent-task-id" name="task_id">
+            
+            <div class="form-group">
+                <label for="subtask-name">Subtask Name *</label>
+                <input type="text" id="subtask-name" name="name" required maxlength="200">
+            </div>
+            
+            <div class="form-group">
+                <label for="subtask-description">Description</label>
+                <textarea id="subtask-description" name="description" rows="2"></textarea>
+            </div>
+            
+            <div class="form-row">
+                <div class="form-group">
+                    <label for="subtask-status">Status</label>
+                    <select id="subtask-status" name="status">
+                        <option value="Not Started">Not Started</option>
+                        <option value="In Progress">In Progress</option>
+                        <option value="On Hold">On Hold</option>
+                        <option value="Completed">Completed</option>
+                        <option value="Cancelled">Cancelled</option>
+                    </select>
+                </div>
+                
+                <div class="form-group">
+                    <label for="subtask-priority">Priority</label>
+                    <select id="subtask-priority" name="priority">
+                        <option value="Low">Low</option>
+                        <option value="Medium" selected>Medium</option>
+                        <option value="High">High</option>
+                        <option value="Urgent">Urgent</option>
+                    </select>
+                </div>
+            </div>
+            
+            <div class="form-row">
+                <div class="form-group">
+                    <label for="subtask-assigned-to">Assigned To</label>
+                    <select id="subtask-assigned-to" name="assigned_to_id">
+                        <option value="">Unassigned</option>
+                        {% for user in team_members %}
+                        <option value="{{ user.id }}">{{ user.username }}</option>
+                        {% endfor %}
+                    </select>
+                </div>
+                
+                <div class="form-group">
+                    <label for="subtask-estimated-hours">Estimated Hours</label>
+                    <input type="number" id="subtask-estimated-hours" name="estimated_hours" step="0.5" min="0">
+                </div>
+            </div>
+            
+            <div class="form-row">
+                <div class="form-group">
+                    <label for="subtask-start-date">Start Date</label>
+                    <input type="date" id="subtask-start-date" name="start_date">
+                </div>
+                
+                <div class="form-group">
+                    <label for="subtask-due-date">Due Date</label>
+                    <input type="date" id="subtask-due-date" name="due_date">
+                </div>
+            </div>
+            
+            <div class="modal-actions">
+                <button type="submit" class="btn btn-primary">Save Subtask</button>
+                <button type="button" class="btn btn-secondary" id="cancel-subtask">Cancel</button>
+            </div>
+        </form>
+    </div>
+</div>
+
+<style>
+.task-header {
+    display: flex;
+    justify-content: space-between;
+    align-items: flex-start;
+    margin-bottom: 2rem;
+    padding-bottom: 1rem;
+    border-bottom: 2px solid #dee2e6;
+}
+
+.project-info h2 {
+    margin: 0 0 0.5rem 0;
+}
+
+.project-description {
+    color: #666;
+    margin: 0 0 0.5rem 0;
+}
+
+.task-actions {
+    display: flex;
+    gap: 1rem;
+    align-items: center;
+}
+
+.task-stats {
+    display: grid;
+    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
+    gap: 1rem;
+    margin-bottom: 2rem;
+}
+
+.stat-card {
+    background: white;
+    padding: 1.5rem;
+    border-radius: 8px;
+    border: 1px solid #dee2e6;
+    text-align: center;
+}
+
+.stat-card h3 {
+    margin: 0 0 0.5rem 0;
+    font-size: 2rem;
+    color: #4CAF50;
+}
+
+.stat-card p {
+    margin: 0;
+    color: #666;
+    font-weight: 500;
+}
+
+.tasks-container {
+    display: grid;
+    gap: 1rem;
+}
+
+.task-card {
+    background: white;
+    border: 1px solid #dee2e6;
+    border-radius: 8px;
+    overflow: hidden;
+    transition: box-shadow 0.2s ease;
+}
+
+.task-card:hover {
+    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
+}
+
+.task-header {
+    padding: 1rem;
+    background: #f8f9fa;
+    border-bottom: 1px solid #dee2e6;
+    display: flex;
+    justify-content: space-between;
+    align-items: flex-start;
+}
+
+.task-title-area {
+    flex: 1;
+}
+
+.task-name {
+    margin: 0 0 0.5rem 0;
+    font-size: 1.1rem;
+}
+
+.task-meta {
+    display: flex;
+    gap: 0.5rem;
+    align-items: center;
+}
+
+.task-body {
+    padding: 1rem;
+}
+
+.task-description {
+    margin: 0 0 1rem 0;
+    color: #666;
+}
+
+.task-details {
+    display: grid;
+    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
+    gap: 0.5rem;
+    margin-bottom: 1rem;
+}
+
+.task-detail {
+    font-size: 0.9rem;
+}
+
+.progress-section {
+    margin-bottom: 1rem;
+}
+
+.progress-info {
+    display: flex;
+    justify-content: space-between;
+    margin-bottom: 0.5rem;
+    font-size: 0.9rem;
+}
+
+.progress-bar {
+    width: 100%;
+    height: 8px;
+    background: #e9ecef;
+    border-radius: 4px;
+    overflow: hidden;
+}
+
+.progress-fill {
+    height: 100%;
+    background: #4CAF50;
+    transition: width 0.3s ease;
+}
+
+.status-badge {
+    padding: 0.25rem 0.5rem;
+    border-radius: 4px;
+    font-size: 0.75rem;
+    font-weight: 500;
+    text-transform: uppercase;
+}
+
+.status-not-started { background: #f8d7da; color: #721c24; }
+.status-in-progress { background: #d1ecf1; color: #0c5460; }
+.status-on-hold { background: #fff3cd; color: #856404; }
+.status-completed { background: #d4edda; color: #155724; }
+.status-cancelled { background: #f8d7da; color: #721c24; }
+
+.priority-badge {
+    padding: 0.25rem 0.5rem;
+    border-radius: 4px;
+    font-size: 0.75rem;
+    font-weight: 500;
+}
+
+.priority-low { background: #e2e3e5; color: #383d41; }
+.priority-medium { background: #b8daff; color: #004085; }
+.priority-high { background: #ffeaa7; color: #856404; }
+.priority-urgent { background: #f5c6cb; color: #721c24; }
+
+.subtasks-section {
+    margin-top: 1rem;
+    padding-top: 1rem;
+    border-top: 1px solid #dee2e6;
+}
+
+.subtasks-section h5 {
+    margin: 0 0 0.75rem 0;
+    color: #666;
+}
+
+.subtasks-list {
+    display: flex;
+    flex-direction: column;
+    gap: 0.5rem;
+}
+
+.subtask-item {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    padding: 0.5rem;
+    background: #f8f9fa;
+    border-radius: 4px;
+    border: 1px solid #e9ecef;
+}
+
+.subtask-content {
+    display: flex;
+    align-items: center;
+    gap: 0.5rem;
+    flex: 1;
+}
+
+.subtask-name {
+    font-weight: 500;
+}
+
+.subtask-assignee {
+    font-size: 0.8rem;
+    color: #666;
+}
+
+.subtask-actions {
+    display: flex;
+    gap: 0.25rem;
+}
+
+.no-tasks {
+    text-align: center;
+    padding: 4rem 2rem;
+}
+
+.no-tasks-content {
+    max-width: 400px;
+    margin: 0 auto;
+}
+
+.no-tasks h3 {
+    color: #666;
+    margin-bottom: 1rem;
+}
+
+.no-tasks p {
+    color: #999;
+    margin-bottom: 2rem;
+}
+
+.form-row {
+    display: grid;
+    grid-template-columns: 1fr 1fr;
+    gap: 1rem;
+}
+
+@media (max-width: 768px) {
+    .form-row {
+        grid-template-columns: 1fr;
+    }
+    
+    .task-header {
+        flex-direction: column;
+        gap: 1rem;
+    }
+    
+    .task-details {
+        grid-template-columns: 1fr;
+    }
+}
+</style>
+
+<script>
+document.addEventListener('DOMContentLoaded', function() {
+    const taskModal = document.getElementById('task-modal');
+    const subtaskModal = document.getElementById('subtask-modal');
+    const taskForm = document.getElementById('task-form');
+    const subtaskForm = document.getElementById('subtask-form');
+    
+    // Task Modal Functions
+    function openTaskModal(taskData = null) {
+        const isEdit = taskData !== null;
+        document.getElementById('task-modal-title').textContent = isEdit ? 'Edit Task' : 'Create Task';
+        
+        if (isEdit) {
+            document.getElementById('task-id').value = taskData.id;
+            document.getElementById('task-name').value = taskData.name;
+            document.getElementById('task-description').value = taskData.description || '';
+            document.getElementById('task-status').value = taskData.status;
+            document.getElementById('task-priority').value = taskData.priority;
+            document.getElementById('task-assigned-to').value = taskData.assigned_to_id || '';
+            document.getElementById('task-estimated-hours').value = taskData.estimated_hours || '';
+            document.getElementById('task-start-date').value = taskData.start_date || '';
+            document.getElementById('task-due-date').value = taskData.due_date || '';
+        } else {
+            taskForm.reset();
+            document.getElementById('task-id').value = '';
+            document.getElementById('task-priority').value = 'Medium';
+        }
+        
+        taskModal.style.display = 'block';
+    }
+    
+    function openSubtaskModal(taskId, subtaskData = null) {
+        const isEdit = subtaskData !== null;
+        document.getElementById('subtask-modal-title').textContent = isEdit ? 'Edit Subtask' : 'Create Subtask';
+        document.getElementById('parent-task-id').value = taskId;
+        
+        if (isEdit) {
+            document.getElementById('subtask-id').value = subtaskData.id;
+            document.getElementById('subtask-name').value = subtaskData.name;
+            document.getElementById('subtask-description').value = subtaskData.description || '';
+            document.getElementById('subtask-status').value = subtaskData.status;
+            document.getElementById('subtask-priority').value = subtaskData.priority;
+            document.getElementById('subtask-assigned-to').value = subtaskData.assigned_to_id || '';
+            document.getElementById('subtask-estimated-hours').value = subtaskData.estimated_hours || '';
+            document.getElementById('subtask-start-date').value = subtaskData.start_date || '';
+            document.getElementById('subtask-due-date').value = subtaskData.due_date || '';
+        } else {
+            subtaskForm.reset();
+            document.getElementById('subtask-id').value = '';
+            document.getElementById('subtask-priority').value = 'Medium';
+        }
+        
+        subtaskModal.style.display = 'block';
+    }
+    
+    // Event Listeners
+    document.getElementById('create-task-btn').addEventListener('click', () => openTaskModal());
+    document.getElementById('create-first-task-btn')?.addEventListener('click', () => openTaskModal());
+    
+    // Task Actions
+    document.querySelectorAll('.edit-task-btn').forEach(btn => {
+        btn.addEventListener('click', function() {
+            const taskId = this.getAttribute('data-id');
+            // Fetch task data and open modal (implement API call)
+            fetch(`/api/tasks/${taskId}`)
+                .then(response => response.json())
+                .then(data => {
+                    if (data.success) {
+                        openTaskModal(data.task);
+                    }
+                });
+        });
+    });
+    
+    document.querySelectorAll('.add-subtask-btn').forEach(btn => {
+        btn.addEventListener('click', function() {
+            const taskId = this.getAttribute('data-id');
+            openSubtaskModal(taskId);
+        });
+    });
+    
+    document.querySelectorAll('.delete-task-btn').forEach(btn => {
+        btn.addEventListener('click', function() {
+            const taskId = this.getAttribute('data-id');
+            if (confirm('Are you sure you want to delete this task? All subtasks will also be deleted.')) {
+                fetch(`/api/tasks/${taskId}`, {
+                    method: 'DELETE'
+                })
+                .then(response => response.json())
+                .then(data => {
+                    if (data.success) {
+                        location.reload();
+                    } else {
+                        alert('Error: ' + data.message);
+                    }
+                });
+            }
+        });
+    });
+    
+    // Subtask Actions
+    document.querySelectorAll('.edit-subtask-btn').forEach(btn => {
+        btn.addEventListener('click', function() {
+            const subtaskId = this.getAttribute('data-id');
+            const taskId = this.closest('.task-card').getAttribute('data-task-id');
+            // Fetch subtask data and open modal
+            fetch(`/api/subtasks/${subtaskId}`)
+                .then(response => response.json())
+                .then(data => {
+                    if (data.success) {
+                        openSubtaskModal(taskId, data.subtask);
+                    }
+                });
+        });
+    });
+    
+    document.querySelectorAll('.delete-subtask-btn').forEach(btn => {
+        btn.addEventListener('click', function() {
+            const subtaskId = this.getAttribute('data-id');
+            if (confirm('Are you sure you want to delete this subtask?')) {
+                fetch(`/api/subtasks/${subtaskId}`, {
+                    method: 'DELETE'
+                })
+                .then(response => response.json())
+                .then(data => {
+                    if (data.success) {
+                        location.reload();
+                    } else {
+                        alert('Error: ' + data.message);
+                    }
+                });
+            }
+        });
+    });
+    
+    // Form Submissions
+    taskForm.addEventListener('submit', function(e) {
+        e.preventDefault();
+        
+        const formData = new FormData(this);
+        const taskId = formData.get('task_id');
+        const isEdit = taskId !== '';
+        
+        const url = isEdit ? `/api/tasks/${taskId}` : '/api/tasks';
+        const method = isEdit ? 'PUT' : 'POST';
+        
+        fetch(url, {
+            method: method,
+            headers: {
+                'Content-Type': 'application/json',
+            },
+            body: JSON.stringify(Object.fromEntries(formData))
+        })
+        .then(response => response.json())
+        .then(data => {
+            if (data.success) {
+                taskModal.style.display = 'none';
+                location.reload();
+            } else {
+                alert('Error: ' + data.message);
+            }
+        });
+    });
+    
+    subtaskForm.addEventListener('submit', function(e) {
+        e.preventDefault();
+        
+        const formData = new FormData(this);
+        const subtaskId = formData.get('subtask_id');
+        const isEdit = subtaskId !== '';
+        
+        const url = isEdit ? `/api/subtasks/${subtaskId}` : '/api/subtasks';
+        const method = isEdit ? 'PUT' : 'POST';
+        
+        fetch(url, {
+            method: method,
+            headers: {
+                'Content-Type': 'application/json',
+            },
+            body: JSON.stringify(Object.fromEntries(formData))
+        })
+        .then(response => response.json())
+        .then(data => {
+            if (data.success) {
+                subtaskModal.style.display = 'none';
+                location.reload();
+            } else {
+                alert('Error: ' + data.message);
+            }
+        });
+    });
+    
+    // Modal Close Events
+    document.querySelectorAll('.close').forEach(btn => {
+        btn.addEventListener('click', function() {
+            this.closest('.modal').style.display = 'none';
+        });
+    });
+    
+    document.getElementById('cancel-task').addEventListener('click', () => {
+        taskModal.style.display = 'none';
+    });
+    
+    document.getElementById('cancel-subtask').addEventListener('click', () => {
+        subtaskModal.style.display = 'none';
+    });
+    
+    // Close modals when clicking outside
+    window.addEventListener('click', function(event) {
+        if (event.target === taskModal) {
+            taskModal.style.display = 'none';
+        }
+        if (event.target === subtaskModal) {
+            subtaskModal.style.display = 'none';
+        }
+    });
+});
+</script>
+
+{% endblock %}
\ No newline at end of file