Replace emoji OS icons with professional SVG icons

- Apple logo SVG for macOS
- Windows logo SVG for Windows
- Linux Tux SVG for Linux
- Update CSS for proper SVG display

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: iYassr

docs/index.html

@@ -422,8 +422,14 @@
     }
 
     .download-btn .platform {
-      font-size: 32px;
       margin-bottom: 8px;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+    }
+
+    .download-btn .platform svg {
+      opacity: 0.9;
     }
 
     .download-btn .name {
@@ -710,17 +716,29 @@ <h2 class="section-title">Download maskr</h2>
       <p class="section-subtitle">Free and open source. Available for all platforms. <span id="release-version" style="color: var(--accent);"></span></p>
       <div class="download-buttons" id="download-buttons">
         <a href="https://github.com/iYassr/maskr/releases/latest" class="download-btn" id="download-mac">
-          <span class="platform">🍎</span>
+          <span class="platform">
+            <svg width="32" height="32" viewBox="0 0 24 24" fill="currentColor">
+              <path d="M18.71 19.5c-.83 1.24-1.71 2.45-3.05 2.47-1.34.03-1.77-.79-3.29-.79-1.53 0-2 .77-3.27.82-1.31.05-2.3-1.32-3.14-2.53C4.25 17 2.94 12.45 4.7 9.39c.87-1.52 2.43-2.48 4.12-2.51 1.28-.02 2.5.87 3.29.87.78 0 2.26-1.07 3.81-.91.65.03 2.47.26 3.64 1.98-.09.06-2.17 1.28-2.15 3.81.03 3.02 2.65 4.03 2.68 4.04-.03.07-.42 1.44-1.38 2.83M13 3.5c.73-.83 1.94-1.46 2.94-1.5.13 1.17-.34 2.35-1.04 3.19-.69.85-1.83 1.51-2.95 1.42-.15-1.15.41-2.35 1.05-3.11z"/>
+            </svg>
+          </span>
           <span class="name">macOS</span>
           <span class="version" id="mac-version">Intel & Apple Silicon</span>
         </a>
         <a href="https://github.com/iYassr/maskr/releases/latest" class="download-btn" id="download-win">
-          <span class="platform">🪟</span>
+          <span class="platform">
+            <svg width="32" height="32" viewBox="0 0 24 24" fill="currentColor">
+              <path d="M3 12V6.75l6-1.32v6.48L3 12zm17-9v8.75l-10 .15V5.21L20 3zM3 13l6 .09v6.81l-6-1.15V13zm17 .25V22l-10-1.91V13.1l10 .15z"/>
+            </svg>
+          </span>
           <span class="name">Windows</span>
           <span class="version" id="win-version">Installer & Portable</span>
         </a>
         <a href="https://github.com/iYassr/maskr/releases/latest" class="download-btn" id="download-linux">
-          <span class="platform">🐧</span>
+          <span class="platform">
+            <svg width="32" height="32" viewBox="0 0 24 24" fill="currentColor">
+              <path d="M12.504 0c-.155 0-.315.008-.48.021-4.226.333-3.105 4.807-3.17 6.298-.076 1.092-.3 1.953-1.05 3.02-.885 1.051-2.127 2.75-2.716 4.521-.278.832-.41 1.684-.287 2.489a.424.424 0 00-.11.135c-.26.268-.45.6-.663.839-.199.199-.485.267-.797.4-.313.136-.658.269-.864.68-.09.189-.136.394-.132.602 0 .199.027.4.055.536.058.399.116.728.04.97-.249.68-.28 1.145-.106 1.484.174.334.535.47.94.601.81.2 1.91.135 2.774.6.926.466 1.866.67 2.616.47.526-.116.97-.464 1.208-.946.587-.003 1.23-.269 2.26-.334.699-.058 1.574.267 2.577.2.025.134.063.198.114.333l.003.003c.391.778 1.113 1.132 1.884 1.071.771-.06 1.592-.536 2.257-1.306.631-.765 1.683-1.084 2.378-1.503.348-.199.629-.469.649-.853.023-.4-.2-.811-.714-1.376v-.097l-.003-.003c-.17-.2-.25-.535-.338-.926-.085-.401-.182-.786-.492-1.046h-.003c-.059-.054-.123-.067-.188-.135a.357.357 0 00-.19-.064c.431-1.278.264-2.55-.173-3.694-.533-1.41-1.465-2.638-2.175-3.483-.796-1.005-1.576-1.957-1.56-3.368.026-2.152.236-6.133-3.544-6.139zm.529 3.405h.013c.213 0 .396.062.584.198.19.135.33.332.438.533.105.259.158.459.166.724 0-.02.006-.04.006-.06v.105a.086.086 0 01-.004-.021l-.004-.024a1.807 1.807 0 01-.15.706.953.953 0 01-.213.335.71.71 0 00-.088-.042c-.104-.045-.198-.064-.284-.133a1.312 1.312 0 00-.22-.066c.05-.06.146-.133.183-.198.053-.128.082-.262.083-.402 0-.108-.011-.216-.036-.32a.8.8 0 00-.055-.159c-.029-.053-.066-.096-.111-.16H12.5a.693.693 0 00-.136-.0059.862.862 0 00-.274.05.876.876 0 00-.243.136c.036-.042.063-.09.084-.14a.947.947 0 00.066-.34c0-.076-.006-.15-.018-.222a.882.882 0 00-.084-.24.793.793 0 00-.166-.247 1.173 1.173 0 00-.253-.183 1.076 1.076 0 00-.32-.106 1.47 1.47 0 00-.373-.015c.18-.278.39-.5.642-.66.251-.159.556-.2.867-.2zm-2.3 2.266c.073.007.148.018.221.035.203.05.39.134.56.236a1.334 1.334 0 01.368.334.956.956 0 01.162.344l.004.02c.017.066.027.133.03.2v.059l-.005.07c-.003.037-.01.072-.017.108-.016.062-.035.122-.06.178-.047.11-.109.21-.182.3a1.12 1.12 0 01-.18.182l-.05.037a.76.76 0 01-.18.101l-.015.006c-.066.025-.133.042-.201.052-.034.006-.068.008-.102.01l-.09.002h-.012c-.072-.002-.143-.01-.213-.026a.94.94 0 01-.188-.062.916.916 0 01-.165-.094.883.883 0 01-.141-.125.901.901 0 01-.111-.148.836.836 0 01-.077-.166.771.771 0 01-.038-.18.772.772 0 010-.187.762.762 0 01.038-.18.827.827 0 01.077-.166.887.887 0 01.111-.15.875.875 0 01.142-.124.907.907 0 01.165-.095.918.918 0 01.188-.06.95.95 0 01.107-.013l.106-.004zm4.072.107c.036.002.072.007.108.013a.94.94 0 01.188.062.916.916 0 01.165.094.883.883 0 01.141.125.901.901 0 01.111.148.836.836 0 01.077.166.771.771 0 01.038.18.772.772 0 010 .187.762.762 0 01-.038.18.827.827 0 01-.077.166.887.887 0 01-.111.15.875.875 0 01-.142.124.907.907 0 01-.165.095.918.918 0 01-.188.06.95.95 0 01-.213.026h-.012l-.09-.002c-.034-.002-.068-.004-.102-.01a.931.931 0 01-.201-.052l-.015-.006a.76.76 0 01-.18-.101l-.05-.037a1.12 1.12 0 01-.18-.182 1.148 1.148 0 01-.182-.3.863.863 0 01-.06-.178.655.655 0 01-.017-.108l-.005-.07v-.059c.003-.067.013-.134.03-.2l.004-.02a.956.956 0 01.162-.344 1.334 1.334 0 01.368-.334c.17-.102.357-.186.56-.236a1.09 1.09 0 01.221-.035h.036zm-3.014 2.36l.015.039c.009.022.018.045.024.068.062.207.068.418.018.628a1.078 1.078 0 01-.104.27c-.058.1-.126.19-.199.274a1.958 1.958 0 01-.22.213 2.3 2.3 0 01-.237.18c.119.089.23.188.331.296.102.108.192.226.27.353.076.127.14.262.188.403.05.14.084.287.1.436.018.15.02.3.004.449a1.892 1.892 0 01-.087.433 1.735 1.735 0 01-.169.39 1.601 1.601 0 01-.245.334c.063.013.124.03.183.052.06.022.118.05.173.082.111.064.21.146.296.241.085.096.157.205.212.324.055.119.093.247.113.379.02.132.022.268.004.402a1.413 1.413 0 01-.091.367 1.243 1.243 0 01-.169.31c.147.073.282.168.4.281.119.114.222.244.305.388.083.145.147.302.19.467.042.166.062.338.058.51a1.703 1.703 0 01-.078.466 1.582 1.582 0 01-.187.41c.124.038.243.092.355.16.111.068.215.15.308.244.092.093.174.198.242.312a1.5 1.5 0 01.158.364c.037.128.06.26.067.394.008.134 0 .268-.023.4a1.463 1.463 0 01-.117.38 1.382 1.382 0 01-.193.325 1.417 1.417 0 01-.258.263 1.513 1.513 0 01-.31.193 1.609 1.609 0 01-.35.116 1.704 1.704 0 01-.377.035c-.127 0-.254-.014-.378-.043a1.624 1.624 0 01-.35-.122 1.508 1.508 0 01-.305-.198 1.396 1.396 0 01-.25-.267 1.335 1.335 0 01-.18-.325 1.393 1.393 0 01-.095-.373 1.479 1.479 0 01-.005-.398c.018-.133.053-.262.104-.385a1.493 1.493 0 01.198-.343c.082-.106.176-.2.28-.281a1.669 1.669 0 01-.238-.17 1.597 1.597 0 01-.198-.213 1.485 1.485 0 01-.152-.248 1.339 1.339 0 01-.1-.278 1.394 1.394 0 01-.043-.296 1.476 1.476 0 01.017-.305c.02-.1.052-.198.093-.29a1.403 1.403 0 01.145-.256c-.152-.054-.294-.13-.42-.226a1.565 1.565 0 01-.328-.325 1.554 1.554 0 01-.218-.397 1.552 1.552 0 01-.095-.446 1.554 1.554 0 01.032-.451c.032-.148.083-.29.15-.424.068-.134.152-.258.25-.37a1.663 1.663 0 01.323-.295 2.143 2.143 0 01-.192-.199 2.03 2.03 0 01-.162-.227 1.904 1.904 0 01-.127-.25 1.778 1.778 0 01-.088-.268 1.724 1.724 0 01-.045-.282 1.693 1.693 0 01.003-.29c.012-.096.033-.19.062-.282a1.616 1.616 0 01.11-.262z"/>
+            </svg>
+          </span>
           <span class="name">Linux</span>
           <span class="version" id="linux-version">AppImage & .deb</span>
         </a>