diff --git a/index.html b/index.html
index 488a72c..90c49c6 100644
--- a/index.html
+++ b/index.html
@@ -412,8 +412,9 @@
                                     <span style="flex:1;"></span>
                                     <button type="button" class="guide-tb-btn" id="btn-guide-preview-toggle">Esikatselu</button>
                                 </div>
-                                <textarea id="guide-form-content" rows="20" style="font-family:'SF Mono',Monaco,Consolas,monospace;font-size:0.88rem;line-height:1.6;resize:vertical;min-height:300px;" placeholder="Kirjoita Markdown-muodossa..."></textarea>
+                                <textarea id="guide-form-content" rows="20" style="font-family:'SF Mono',Monaco,Consolas,monospace;font-size:0.88rem;line-height:1.6;resize:vertical;min-height:300px;" placeholder="Kirjoita Markdown-muodossa...&#10;&#10;Vinkki: Liitä kuvakaappaus suoraan Ctrl+V / ⌘V tai raahaa kuvatiedosto tähän"></textarea>
                                 <div id="guide-preview-pane" class="guide-content" style="display:none;padding:1rem;border:2px solid #e0e0e0;border-radius:8px;min-height:300px;background:#fafbfc;"></div>
+                                <div style="font-size:0.78rem;color:#999;margin-top:4px;">📋 Liitä screenshot: Ctrl+V &nbsp;|&nbsp; 📁 Raahaa kuva editoriin &nbsp;|&nbsp; 📷 Tai käytä Kuva-nappia</div>
                             </div>
                             <label style="display:flex;align-items:center;gap:0.5rem;margin:0.75rem 0;font-size:0.9rem;cursor:pointer;">
                                 <input type="checkbox" id="guide-form-pinned"> Kiinnitetty (näkyy aina listauksen alussa)
diff --git a/script.js b/script.js
index 4679c20..f4a2a64 100644
--- a/script.js
+++ b/script.js
@@ -3498,6 +3498,20 @@ let guideCategories = [];
 let currentGuideId = null;
 
 // Markdown-renderöijä (kevyt, ei ulkoisia kirjastoja)
+// Kuva-lightbox ohjeissa
+function openGuideLightbox(src, alt) {
+    let overlay = document.getElementById('guide-lightbox');
+    if (!overlay) {
+        overlay = document.createElement('div');
+        overlay.id = 'guide-lightbox';
+        overlay.style.cssText = 'position:fixed;inset:0;background:rgba(0,0,0,0.85);display:flex;align-items:center;justify-content:center;z-index:10000;cursor:zoom-out;padding:2rem;';
+        overlay.addEventListener('click', () => overlay.style.display = 'none');
+        document.body.appendChild(overlay);
+    }
+    overlay.innerHTML = `<img src="${src}" alt="${alt}" style="max-width:95%;max-height:95%;border-radius:8px;box-shadow:0 8px 40px rgba(0,0,0,0.5);">`;
+    overlay.style.display = 'flex';
+}
+
 function renderMarkdown(md) {
     if (!md) return '';
     let html = esc(md);
@@ -3513,8 +3527,8 @@ function renderMarkdown(md) {
     html = html.replace(/\*\*\*(.+?)\*\*\*/g, '<strong><em>$1</em></strong>');
     html = html.replace(/\*\*(.+?)\*\*/g, '<strong>$1</strong>');
     html = html.replace(/\*(.+?)\*/g, '<em>$1</em>');
-    // Kuvat (ennen linkkejä!)
-    html = html.replace(/!\[([^\]]*)\]\(([^)]+)\)/g, '<img src="$2" alt="$1" style="max-width:100%;border-radius:8px;margin:0.5rem 0;">');
+    // Kuvat (ennen linkkejä!) — klikkaa avataksesi isompana
+    html = html.replace(/!\[([^\]]*)\]\(([^)]+)\)/g, '<img src="$2" alt="$1" class="guide-img" onclick="openGuideLightbox(this.src, this.alt)" title="Klikkaa suurentaaksesi">');
     // Linkit
     html = html.replace(/\[([^\]]+)\]\(([^)]+)\)/g, '<a href="$2" target="_blank" rel="noopener">$1</a>');
     // Lainaukset
@@ -3746,13 +3760,15 @@ document.getElementById('btn-guide-preview-toggle')?.addEventListener('click', (
     }
 });
 
-// Kuva-upload
-document.getElementById('btn-guide-image')?.addEventListener('click', () => {
-    document.getElementById('guide-image-input')?.click();
-});
-document.getElementById('guide-image-input')?.addEventListener('change', async (e) => {
-    const file = e.target.files[0];
-    if (!file) return;
+// Kuva-upload: yhteinen upload-funktio
+async function guideUploadImage(file) {
+    const ta = document.getElementById('guide-form-content');
+    if (!ta) return;
+    const pos = ta.selectionStart;
+    // Näytä upload-placeholder
+    const placeholder = `![Ladataan: ${file.name}...]()`;
+    ta.value = ta.value.substring(0, pos) + placeholder + ta.value.substring(ta.selectionEnd);
+    ta.focus();
     const formData = new FormData();
     formData.append('image', file);
     try {
@@ -3761,16 +3777,70 @@ document.getElementById('guide-image-input')?.addEventListener('change', async (
         });
         const result = await res.json();
         if (!res.ok) throw new Error(result.error || 'Virhe');
-        // Lisää Markdown-kuvatagi editoriin
-        const ta = document.getElementById('guide-form-content');
-        const pos = ta.selectionStart;
         const mdImg = `![${file.name}](${result.url})`;
-        ta.value = ta.value.substring(0, pos) + mdImg + ta.value.substring(ta.selectionEnd);
-        ta.focus();
-        ta.selectionStart = ta.selectionEnd = pos + mdImg.length;
-    } catch (err) { alert(err.message); }
-    e.target.value = ''; // nollaa input
+        ta.value = ta.value.replace(placeholder, mdImg);
+    } catch (err) {
+        ta.value = ta.value.replace(placeholder, '');
+        alert('Kuvan lataus epäonnistui: ' + err.message);
+    }
+}
+
+// Toolbar-nappi
+document.getElementById('btn-guide-image')?.addEventListener('click', () => {
+    document.getElementById('guide-image-input')?.click();
 });
+document.getElementById('guide-image-input')?.addEventListener('change', async (e) => {
+    const file = e.target.files[0];
+    if (file) await guideUploadImage(file);
+    e.target.value = '';
+});
+
+// Paste screenshot leikepöydältä (Ctrl+V / Cmd+V)
+document.getElementById('guide-form-content')?.addEventListener('paste', async (e) => {
+    const items = e.clipboardData?.items;
+    if (!items) return;
+    for (const item of items) {
+        if (item.type.startsWith('image/')) {
+            e.preventDefault();
+            const file = item.getAsFile();
+            if (file) {
+                // Anna tiedostolle nimi aikaleimalla
+                const ext = file.type.split('/')[1] || 'png';
+                const named = new File([file], `screenshot-${Date.now()}.${ext}`, { type: file.type });
+                await guideUploadImage(named);
+            }
+            return;
+        }
+    }
+});
+
+// Drag & drop kuvat editoriin
+const guideTA = document.getElementById('guide-form-content');
+if (guideTA) {
+    guideTA.addEventListener('dragover', (e) => {
+        if (e.dataTransfer?.types?.includes('Files')) {
+            e.preventDefault();
+            guideTA.style.borderColor = 'var(--primary-color)';
+            guideTA.style.background = '#f0f7ff';
+        }
+    });
+    guideTA.addEventListener('dragleave', () => {
+        guideTA.style.borderColor = '';
+        guideTA.style.background = '';
+    });
+    guideTA.addEventListener('drop', async (e) => {
+        guideTA.style.borderColor = '';
+        guideTA.style.background = '';
+        const files = e.dataTransfer?.files;
+        if (!files?.length) return;
+        for (const file of files) {
+            if (file.type.startsWith('image/')) {
+                e.preventDefault();
+                await guideUploadImage(file);
+            }
+        }
+    });
+}
 
 // Kategorianhallinta
 document.getElementById('btn-manage-guide-cats')?.addEventListener('click', () => {
diff --git a/style.css b/style.css
index 513d063..94dd1af 100644
--- a/style.css
+++ b/style.css
@@ -1121,6 +1121,8 @@ span.empty {
 .guide-content hr { border:none; border-top:2px solid #f0f2f5; margin:1.5rem 0; }
 .guide-tb-btn { background:#f0f2f5; border:1px solid #ddd; padding:4px 10px; border-radius:5px; font-size:0.78rem; font-weight:600; cursor:pointer; color:#555; transition:all 0.15s; }
 .guide-tb-btn:hover { background:var(--primary-color); color:#fff; border-color:var(--primary-color); }
+.guide-img { max-width:100%; border-radius:8px; margin:0.75rem 0; cursor:zoom-in; transition:transform 0.15s, box-shadow 0.15s; border:1px solid #e8e8e8; }
+.guide-img:hover { transform:scale(1.01); box-shadow:0 4px 16px rgba(0,0,0,0.12); }
 
 /* Role badge */
 .role-badge {