fork from https://github.com/mozilla/pdf.js.git

web/sidebar.css

@@ -0,0 +1,93 @@
+/* Copyright 2025 Mozilla Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+.sidebar {
+  --sidebar-bg-color: light-dark(#fff, #23222b);
+  --sidebar-border-color: light-dark(
+    rgb(21 20 26 / 0.1),
+    rgb(251 251 254 / 0.1)
+  );
+  --sidebar-box-shadow:
+    0 0.25px 0.75px light-dark(rgb(0 0 0 / 0.05), rgb(0 0 0 / 0.2)),
+    0 2px 6px 0 light-dark(rgb(0 0 0 / 0.1), rgb(0 0 0 / 0.4));
+  --sidebar-backdrop-filter: none;
+  --sidebar-border-radius: 8px;
+  --sidebar-padding: 5px;
+  --sidebar-min-width: 180px;
+  --sidebar-max-width: 632px;
+  --sidebar-width: 239px;
+  --resizer-width: 4px;
+  --resizer-shift: calc(0px - var(--resizer-width) - 2px);
+  --resizer-hover-bg-color: light-dark(#0062fa, #00cadb);
+
+  @media screen and (forced-colors: active) {
+    --sidebar-bg-color: Canvas;
+    --sidebar-border-color: CanvasText;
+    --sidebar-box-shadow: none;
+    --resizer-hover-bg-color: CanvasText;
+  }
+
+  border-radius: var(--sidebar-border-radius);
+  box-shadow: var(--sidebar-box-shadow);
+  border: 1px solid var(--sidebar-border-color);
+  background-color: var(--sidebar-bg-color);
+  inset-block-start: calc(100% + var(--doorhanger-height) - 2px);
+  padding-block: var(--sidebar-padding);
+  width: var(--sidebar-width);
+  min-width: var(--sidebar-min-width);
+  max-width: var(--sidebar-max-width);
+  backdrop-filter: var(--sidebar-backdrop-filter);
+  box-sizing: border-box;
+  position: relative;
+
+  .sidebarResizer {
+    width: var(--resizer-width);
+    background-color: transparent;
+    forced-color-adjust: none;
+    cursor: ew-resize;
+    position: absolute;
+    inset-block: 0;
+    inset-inline-start: var(--resizer-shift);
+    transition:
+      background-color 0.5s ease-in-out,
+      border-color 0.5s ease-in-out;
+    box-sizing: border-box;
+    border: 1px solid transparent;
+    border-block-width: 0;
+    background-clip: content-box;
+
+    &:hover {
+      background-color: var(--resizer-hover-bg-color);
+      border-color: white;
+    }
+    &:focus-visible {
+      background-color: var(--resizer-hover-bg-color);
+      outline: none;
+    }
+  }
+
+  &.resizing {
+    cursor: ew-resize;
+    user-select: none;
+
+    :not(.sidebarResizer) {
+      pointer-events: none;
+    }
+
+    .sidebarResizer {
+      background-color: var(--resizer-hover-bg-color);
+    }
+  }
+}