Avoid importing _ug-jsvectormap.min.css in non-experimental case

For the non-experimental deck, _ug-jsvectormap.min.css is clearly not
present.  This absence is harmless on Anki desktop, but results in an
annoying pop-up message on AnkiDroid.

Fix #700.

Author: aplaice

src/note_models/Ultimate_Geography_[Experimental].yaml

@@ -1,6 +1,6 @@
 name: Ultimate Geography [Experimental]
 id: 2e98b530-7583-5551-1fd7-51e6969d58ed
-css_file: src/note_models/style.css
+css_file: src/note_models/style_[Experimental].css
 fields:
   - name: Country
     font: Arial

src/note_models/style.css

@@ -1,5 +1,3 @@
-@import url("_ug-jsvectormap.min.css");
-
 .card {
   padding: 1em 0;
   background-color: white;

src/note_models/style_[Experimental].css

@@ -0,0 +1,106 @@
+@import url("_ug-jsvectormap.min.css");
+
+.card {
+  padding: 1em 0;
+  background-color: white;
+  color: black;
+  font-family: Verdana;
+  font-size: 16px;
+  text-align: center;
+}
+
+.type {
+  margin-bottom: 0.25em;
+  color: #333;
+  font-size: 70%;
+  font-weight: bold;
+  text-transform: uppercase;
+}
+
+.info {
+  max-width: 30em;
+  margin: 0.75em auto;
+  color: #333;
+  font-size: 90%;
+  font-style: italic;
+}
+
+.value {
+  font-size: 150%;
+}
+
+.value--top {
+  margin-top: 1em;
+}
+
+.value--image {
+  margin-top: 0.75em;
+}
+
+.value--map {
+  width: 90%;
+  height: 65vh;
+  margin: 2em auto 0 auto;
+}
+
+.value > img,
+.value > .placeholder {
+  max-width: 100%;
+  height: auto;
+}
+
+/**
+ * Apply shadow to images, notably to bring out white areas on flags.
+ * Ignore images with non-rectangular outlines (e.g. flag of Nepal).
+ */
+.value > img:not([src*="-nobox"]) {
+  box-shadow: 0 1px 4px 1px rgba(0, 0, 0, 0.2);
+}
+
+/**
+ * Some flags (e.g. Guam's) contain identifying words that can give away the answer.
+ * If a blurred version is available, show it on the front but not on the back.
+ */
+.value--front > img[src*="-blur"] + img {
+  display: none;
+}
+
+.value--back > img[src*="-blur"] {
+  display: none;
+}
+
+/**
+ * Placeholder SVG to hint at the type of answer that is expected.
+ * Used on "Country - Flag" and "Country - Map" templates.
+ */
+.placeholder {
+  color: #333;
+}
+
+.placeholder > path {
+  fill: none;
+  stroke: currentColor;
+  stroke-width: 1;
+}
+
+.night_mode .info,
+.night_mode .type,
+.night_mode .placeholder,
+.nightMode .info,
+.nightMode .type,
+.nightMode .placeholder {
+  color: #ccc;
+}
+
+/**
+ * Apply shadow to images, to bring out black areas on flags, in night
+   mode.
+ */
+.nightMode .value > img:not([src*="-nobox"]),
+.night_mode .value > img:not([src*="-nobox"]) {
+  box-shadow: 0 0 4px 1px rgba(54, 54, 54, 0.9);
+}
+
+hr {
+  margin: 1.5em 0;
+}