feat: continuous scroll

Author: dfface

epub_browser/assets/annotation.css

@@ -300,9 +300,55 @@
     color: white;
 }
 
-/* ========== Settings Toggle Row ========== */
-/* .setting-toggle-row, .setting-label-text, .toggle-switch, .toggle-slider
-   are defined in chapter.css and shared across all settings tabs. */
+/* ========== Settings Toggle Switch ========== */
+
+.settings-switch {
+    display: flex;
+    align-items: center;
+    gap: 10px;
+    cursor: pointer;
+}
+
+.settings-switch input[type="checkbox"] {
+    display: none;
+}
+
+.switch-slider {
+    width: 48px;
+    height: 26px;
+    background: var(--border);
+    border-radius: 13px;
+    position: relative;
+    transition: background 0.2s;
+    flex-shrink: 0;
+}
+
+.switch-slider::after {
+    content: '';
+    position: absolute;
+    width: 20px;
+    height: 20px;
+    background: white;
+    border-radius: 50%;
+    top: 3px;
+    left: 3px;
+    transition: transform 0.2s;
+    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
+}
+
+.settings-switch input[type="checkbox"]:checked + .switch-slider {
+    background: var(--button-bg);
+}
+
+.settings-switch input[type="checkbox"]:checked + .switch-slider::after {
+    transform: translateX(22px);
+}
+
+.switch-text {
+    font-size: 0.95rem;
+    color: var(--text);
+    font-weight: 500;
+}
 
 /* ========== Storage Options ========== */
 

epub_browser/assets/annotation.js

@@ -1322,13 +1322,11 @@
             tabPanel.id = 'annotation-tab';
             tabPanel.innerHTML = '\
                 <div class="settings-group">\
-                    <div class="setting-toggle-row">\
-                        <span class="setting-label-text">Enable Annotation</span>\
-                        <label class="toggle-switch">\
-                            <input type="checkbox" id="annotationEnabled" ' + (Settings.enabled ? 'checked' : '') + '>\
-                            <span class="toggle-slider"></span>\
-                        </label>\
-                    </div>\
+                    <label class="settings-switch">\
+                        <input type="checkbox" id="annotationEnabled" ' + (Settings.enabled ? 'checked' : '') + '>\
+                        <span class="switch-slider"></span>\
+                        <span class="switch-text">Enable Annotation</span>\
+                    </label>\
                 </div>\
                 <div class="settings-group">\
                     <label class="settings-label">Storage Location</label>\

epub_browser/assets/chapter.css

@@ -1593,9 +1593,11 @@ body {
     font-size: 0.75rem;
     font-weight: 400;
     white-space: normal;
-    max-width: 260px;
-    text-align: center;
-    line-height: 1.4;
+    word-break: break-word;
+    width: max-content;
+    max-width: min(320px, calc(100vw - 40px));
+    text-align: left;
+    line-height: 1.5;
     z-index: 100;
     box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
 }