added vertical mode and optimised layout for mobile

src/ui/global.css

@@ -0,0 +1,101 @@
+html, body {
+    position: relative;
+    width: 100%;
+    height: 100%;
+}
+
+* {
+    box-sizing: border-box;
+}
+
+body {
+    color: #333;
+    margin: 0;
+    font-family: DMSans, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
+}
+
+a {
+    color: rgb(0,100,200);
+    text-decoration: none;
+}
+
+a:hover {
+    text-decoration: underline;
+}
+
+a:visited {
+    color: rgb(0,80,160);
+}
+
+label {
+    display: block;
+}
+
+input, button, select, textarea {
+    font-family: inherit;
+    font-size: inherit;
+    padding: 0.4em;
+    margin: 0 0 0.5em 0;
+    box-sizing: border-box;
+}
+
+input:disabled {
+    color: #ccc;
+}
+
+button {
+    color: #333;
+    background-color: #f4f4f4;
+    outline: none;
+}
+
+button:disabled {
+    color: #999;
+}
+
+button:not(:disabled):active {
+    background-color: #ddd;
+}
+
+button:focus {
+    border-color: #666;
+}
+
+::-webkit-scrollbar {
+    background-color: transparent;
+}
+body {
+    scrollbar-width: thin;
+    scrollbar-color: var(--color-ui-neutral-dark) transparent;
+}
+::-webkit-scrollbar-thumb {
+    background-color: rgba(0,0,0,0);
+}
+
+@font-face {
+    font-family: 'DMSans';
+    font-style: normal;
+    font-weight: 400;
+    src: url(./DMSans-Regular.ttf) format('woff2');
+}
+
+@font-face {
+    font-family: 'DMSans';
+    font-style: normal;
+    font-weight: 600;
+    src: url(./DMSans-Bold.ttf) format('woff2');
+}
+
+@font-face {
+    font-family: 'DMSans';
+    font-style: italic;
+    font-weight: 400;
+    src: url(./DMSans-Italic.ttf) format('woff2');
+}
+
+@font-face {
+    font-family: 'DMSans';
+    font-style: italic;
+    font-weight: 600;
+    src: url(./DMSans-BoldItalic.ttf) format('woff2');
+}