{% extends "base.html" %}
{% from 'partials/_buttons.html' import button %}

{% block title %}{{ page_title }} - MTG Deckbuilder{% endblock %}

{% block content %}
<!-- Mobile guide nav toggle (must be outside sidebar due to CSS transform/fixed positioning) -->
<button class="docs-sidebar-toggle" id="docsMobileToggle" aria-label="Toggle guide navigation" aria-expanded="false">
  <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
    <line x1="3" y1="12" x2="21" y2="12"></line>
    <line x1="3" y1="6" x2="21" y2="6"></line>
    <line x1="3" y1="18" x2="21" y2="18"></line>
  </svg>
</button>

<div class="docs-layout">
  
  <!-- Sidebar navigation -->
  <aside class="docs-sidebar" id="docsSidebar">
    
    <div class="docs-sidebar-header">
      <h3>Documentation</h3>
      {{ button('← All Guides', variant='ghost', href='/help', size='sm', classes='docs-back-link') }}
    </div>
    
    <!-- Table of contents for current guide -->
    {% if toc_html %}
    <div class="docs-toc">
      <h4 class="docs-toc-title">On This Page</h4>
      <div class="docs-toc-content">
        {{ toc_html | safe }}
      </div>
    </div>
    {% endif %}
    
    <!-- All guides navigation (collapsible, collapsed by default if TOC present) -->
    <details class="docs-all-guides" {% if not toc_html %}open{% endif %}>
      <summary class="docs-all-guides-toggle">All Guides</summary>
      <nav class="docs-nav" aria-label="Documentation navigation">
        {% for guide in all_guides %}
        <a 
          href="/help/{{ guide.name }}" 
          class="docs-nav-item {% if guide.name == guide_name %}active{% endif %}"
          {% if guide.name == guide_name %}aria-current="page"{% endif %}
        >
          {{ guide.title }}
        </a>
        {% endfor %}
      </nav>
    </details>
  </aside>

  <!-- Main content -->
  <main class="docs-content">
    <article class="docs-article">
      
      <!-- Guide header -->
      <header class="docs-header">
        <h1>{{ guide_title }}</h1>
        {% if guide_description %}
        <p class="docs-description">{{ guide_description }}</p>
        {% endif %}
      </header>

      <!-- Rendered markdown content -->
      <div class="docs-body markdown-content">
        {{ html_content | safe }}
      </div>

      <!-- Footer navigation -->
      <footer class="docs-footer">
        {{ button('← Back to All Guides', variant='primary', href='/help', size='md') }}
      </footer>

    </article>
  </main>

</div>

<style>
/* Layout */
.docs-layout {
  display: grid;
  grid-template-columns: minmax(280px, 320px) 1fr;
  gap: 2rem;
  max-width: 1400px;
  margin: 0;
  margin-right: auto;
  padding: 2rem 1rem;
  min-height: calc(100vh - 120px);
  align-items: start;
}

/* Sidebar */
.docs-sidebar {
  position: sticky;
  top: 1rem;
  height: auto;
  max-height: none;
  overflow-y: visible;
  padding: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.docs-sidebar-header {
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.docs-sidebar-header h3 {
  margin: 0 0 0.75rem 0;
  font-size: 1.1rem;
  color: var(--text);
}

.docs-back-link {
  width: 100%;
  justify-content: flex-start;
}

/* Table of contents */
.docs-toc {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.docs-toc-title {
  margin: 0 0 0.75rem 0;
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.docs-toc-content {
  font-size: 0.9rem;
}

.docs-toc-content ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.docs-toc-content li {
  margin: 0;
  padding: 0;
}

.docs-toc-content a {
  display: block;
  padding: 0.4rem 0.5rem;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: 4px;
  transition: background-color 0.2s, color 0.2s;
}

.docs-toc-content a:hover {
  background: var(--surface-hover);
  color: var(--text);
}

.docs-toc-content a:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Nested TOC items (H3, H4, etc.) */
.docs-toc-content ul ul {
  padding-left: 0.75rem;
  margin-top: 0.25rem;
}

/* All guides collapsible section */
.docs-all-guides {
  margin-top: 1rem;
}

.docs-all-guides-toggle {
  cursor: pointer;
  padding: 0.5rem 0.5rem 0.75rem 0.5rem;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  user-select: none;
  list-style: none;
  border-bottom: 1px solid var(--border);
  transition: color 0.2s;
}

.docs-all-guides-toggle:hover {
  color: var(--text);
}

.docs-all-guides-toggle::-webkit-details-marker {
  display: none;
}

.docs-all-guides-toggle::before {
  content: '▼';
  display: inline-block;
  margin-right: 0.5rem;
  font-size: 0.7rem;
  transition: transform 0.2s;
}

.docs-all-guides:not([open]) .docs-all-guides-toggle::before {
  transform: rotate(-90deg);
}

.docs-nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.docs-nav-item {
  padding: 0.5rem 0.75rem;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: 4px;
  font-size: 0.95rem;
  transition: background-color 0.2s, color 0.2s, transform 0.1s;
}

.docs-nav-item:hover {
  background: var(--surface-hover);
  color: var(--text);
  transform: translateX(2px);
}

.docs-nav-item:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.docs-nav-item.active {
  background: var(--primary);
  color: white;
  font-weight: 600;
}

.docs-nav-item.active:focus {
  outline-color: var(--text);
}

/* Main content */
.docs-content {
  min-width: 0; /* Prevent grid overflow */
}

.docs-article {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem;
}

.docs-header {
  padding-bottom: 1.5rem;
  border-bottom: 2px solid var(--border);
  margin-bottom: 2rem;
}

.docs-header h1 {
  margin: 0 0 0.5rem 0;
  font-size: 2rem;
  color: var(--text);
}

.docs-description {
  color: var(--text-muted);
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.6;
}

.docs-body {
  line-height: 1.7;
  color: var(--text);
}

.docs-footer {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

/* Markdown content styling */
.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4,
.markdown-content h5,
.markdown-content h6 {
  margin-top: 1.5em;
  margin-bottom: 0.75em;
  font-weight: 600;
  line-height: 1.3;
  color: var(--text);
  scroll-margin-top: 68px; /* banner height (52px) + breathing room */
}

.markdown-content h1 { font-size: 1.8rem; border-bottom: 2px solid var(--border); padding-bottom: 0.3em; }
.markdown-content h2 { font-size: 1.5rem; border-bottom: 1px solid var(--border); padding-bottom: 0.25em; }
.markdown-content h3 { font-size: 1.25rem; }
.markdown-content h4 { font-size: 1.1rem; }
.markdown-content h5 { font-size: 1rem; }
.markdown-content h6 { font-size: 0.95rem; color: var(--text-muted); }

.markdown-content p {
  margin: 1em 0;
}

.markdown-content a {
  color: var(--primary);
  text-decoration: underline;
  transition: color 0.2s;
}

.markdown-content a:hover {
  color: var(--primary-hover);
}

.markdown-content ul,
.markdown-content ol {
  margin: 1em 0;
  padding-left: 2em;
}

.markdown-content li {
  margin: 0.5em 0;
}

.markdown-content code {
  background: var(--surface-alt);
  padding: 0.2em 0.4em;
  border-radius: 3px;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 0.9em;
  color: var(--text);
  border: 1px solid var(--border);
}

.markdown-content pre {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1em;
  overflow-x: auto;
  margin: 1em 0;
}

.markdown-content pre code {
  background: none;
  padding: 0;
  border: none;
  font-size: 0.9em;
  display: block;
}

.markdown-content blockquote {
  border-left: 4px solid var(--primary);
  padding-left: 1em;
  margin: 1em 0;
  color: var(--text-muted);
  font-style: italic;
}

.markdown-content table {
  border-collapse: collapse;
  width: 100%;
  margin: 1em 0;
  border: 1px solid var(--border);
}

.markdown-content th,
.markdown-content td {
  border: 1px solid var(--border);
  padding: 0.75em;
  text-align: left;
}

.markdown-content th {
  background: var(--surface-alt);
  font-weight: 600;
}

.markdown-content tr:nth-child(even) {
  background: var(--surface-hover);
}

.markdown-content img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  margin: 1em 0;
}

.markdown-content hr {
  border: none;
  border-top: 2px solid var(--border);
  margin: 2em 0;
}

/* Mobile responsive */
/* Sidebar toggle tab (integrated into sidebar) */
.docs-sidebar-toggle {
  display: none; /* Hidden on desktop */
}

@media (max-width: 968px) {
  /* Toggle is a fixed sibling of sidebar - visible regardless of sidebar transform */
  .docs-sidebar-toggle {
    display: flex;
    position: fixed;
    top: 60px; /* Below banner */
    left: 0;
    z-index: 100;
    background: var(--surface-sidebar);
    color: var(--surface-sidebar-text);
    border: 1px solid var(--border);
    border-left: none;
    border-radius: 0 6px 6px 0;
    padding: 0.75rem 0.5rem;
    cursor: pointer;
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.3);
    transition: left 0.3s ease-in-out, border-radius 0.3s;
    align-items: center;
    justify-content: center;
  }

  .docs-sidebar-toggle:hover {
    background: color-mix(in srgb, var(--surface-sidebar) 85%, var(--surface-sidebar-text) 15%);
  }

  /* When sidebar is open, shift toggle to be at edge of open sidebar */
  .docs-sidebar-toggle.sidebar-open {
    left: 280px;
    border-radius: 0 6px 6px 0;
    border-left: none;
  }

  .docs-layout {
    grid-template-columns: 1fr;
    padding: 1rem;
  }

  .docs-sidebar {
    position: fixed;
    top: 52px; /* Below top banner */
    left: 0;
    width: 280px;
    height: calc(100vh - 52px);
    z-index: 50;
    max-height: none;
    margin-bottom: 0;
    border-radius: 0;
    border-left: none;
    border-top: none;
    border-bottom: none;
    background: var(--surface-sidebar);
    color: var(--surface-sidebar-text);
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.3);
    transform: translateX(-100%);
    transition: transform 0.3s ease-in-out;
    overflow-y: auto;
  }

  .docs-sidebar.mobile-open {
    transform: translateX(0);
  }

  /* Backdrop when sidebar is open */
  .docs-sidebar::before {
    content: '';
    position: fixed;
    top: 52px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
    z-index: -1;
  }

  .docs-sidebar.mobile-open::before {
    opacity: 1;
    pointer-events: auto;
  }

  /* Sidebar content (not the toggle) */
  .docs-sidebar-header,
  .docs-toc,
  .docs-all-guides {
    position: relative;
    z-index: 1;
  }

  .docs-article {
    padding: 1.5rem;
  }

  .docs-header h1 {
    font-size: 1.5rem;
  }
}

@media (max-width: 640px) {
  .docs-article {
    padding: 1rem;
  }

  .markdown-content h1 { font-size: 1.5rem; }
  .markdown-content h2 { font-size: 1.25rem; }
  .markdown-content h3 { font-size: 1.1rem; }
}
</style>

<script>
// Smooth anchor scrolling
document.addEventListener('DOMContentLoaded', function() {
  const links = document.querySelectorAll('.markdown-content a[href^="#"], .docs-toc-content a[href^="#"]');
  links.forEach(link => {
    link.addEventListener('click', function(e) {
      e.preventDefault();
      const target = document.querySelector(this.getAttribute('href'));
      if (target) {
        target.scrollIntoView({ behavior: 'smooth', block: 'start' });
        
        // Close mobile sidebar after navigation
        if (window.innerWidth <= 968) {
          const sidebar = document.getElementById('docsSidebar');
          const toggleButton = document.getElementById('docsMobileToggle');
          if (sidebar && toggleButton) {
            sidebar.classList.remove('mobile-open');
            toggleButton.classList.remove('sidebar-open');
            toggleButton.setAttribute('aria-expanded', 'false');
          }
        }
      }
    });
  });
  
  // Mobile sidebar toggle
  const toggleButton = document.getElementById('docsMobileToggle');
  const sidebar = document.getElementById('docsSidebar');
  
  if (toggleButton && sidebar) {
    toggleButton.addEventListener('click', function(e) {
      e.stopPropagation();
      const isOpen = sidebar.classList.toggle('mobile-open');
      toggleButton.classList.toggle('sidebar-open', isOpen);
      toggleButton.setAttribute('aria-expanded', isOpen);
    });
    
    // Close sidebar when clicking backdrop
    sidebar.addEventListener('click', function(e) {
      if (e.target === sidebar || e.target.classList.contains('docs-sidebar')) {
        sidebar.classList.remove('mobile-open');
        toggleButton.classList.remove('sidebar-open');
        toggleButton.setAttribute('aria-expanded', 'false');
      }
    });
    
    // Close sidebar on escape key
    document.addEventListener('keydown', function(e) {
      if (e.key === 'Escape' && sidebar.classList.contains('mobile-open')) {
        sidebar.classList.remove('mobile-open');
        toggleButton.classList.remove('sidebar-open');
        toggleButton.setAttribute('aria-expanded', 'false');
      }
    });
  }
});
</script>
{% endblock %}