Redesign main page (#571)

src/css/custom.css

@@ -917,4 +917,78 @@ html[data-theme="dark"] .panel-title:hover {
   background-repeat: no-repeat;
   background-position: center;
   background-size: contain;
+}
+.cml-card ol {
+    list-style-type: none;
+    display: flex;
+    padding: 48px 16px;
+    flex-wrap: wrap;
+    gap: 32px;
+    align-items: stretch;
+}
+
+.cml-card li {
+    border: 1px solid rgba(0, 0, 0, 0.2);
+    text-align: center;
+    flex-grow: 1;
+    flex-basis: 0;
+    margin: 0 0 24px 0 !important;
+    padding: 48px 16px 32px;
+    border-radius: 6px;
+    position: relative;
+    min-height: 280px;
+    flex-direction: column;
+    display: flex;
+    align-items: center;
+}
+
+.cml-card i {
+    width: 64px;
+    height: 64px;
+    position: absolute;
+    top: -32px;
+    left: calc(50% - 32px);
+    border-radius: 50%;
+    border: 1px solid rgba(0, 0, 0, 0.2);
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    background-color: white;
+}
+
+.cml-card i img {
+    filter: hue-rotate(25deg) invert(1);
+}
+
+.cml-card .btn-link {
+    margin-top: auto;
+}
+
+.cml-card .btn-link a:link,
+.cml-card .btn-link a:visited {
+    display: inline-block;
+    border-radius: 6px;
+    font-weight: 700;
+    white-space: nowrap;
+    text-decoration: none !important;
+    padding: calc(var(--ifm-button-padding-vertical)*var(--ifm-button-size-multiplier)) calc(var(--ifm-button-padding-horizontal)*var(--ifm-button-size-multiplier));
+    font-size: calc(.875rem*var(--ifm-button-size-multiplier));
+    line-height: 1.5;
+    color: var(--ifm-button-color);
+    background-color: var(--ifm-color-primary);
+}
+
+.cml-card .btn-link a:hover {
+    background-color: var(--ifm-color-primary-dark)
+}
+
+
+html[data-theme=dark] .cml-card li,
+html[data-theme=dark] .cml-card i {
+    border-color: var(--ifm-color-gray-800);
+}
+
+html[data-theme=dark] .cml-card i {
+    background-color: var(--ifm-background-color);
+    border-color: var(--ifm-color-gray-800);
 }