trillo sidebar done

Trillo/starter/sass/_components.scss

@@ -67,7 +67,7 @@
 .user-nav {
   display: flex;
   align-items: center;
-  align-self: stretch; //make it cover the entire height
+  align-self: stretch; //NOTE: make it cover the entire height
 
   & > * {
     height: 100%;
@@ -114,3 +114,74 @@
     margin-right: 1rem;
   }
 }
+
+// Side navigation
+.side-nav {
+  font-size: 1.4rem;
+  list-style: none;
+  margin-top: 3.5rem;
+
+  &__item {
+    position: relative;
+
+    &:not(:last-child) {
+      margin-bottom: 0.5rem;
+    }
+  }
+
+  &__item::before {
+    content: "";
+    position: absolute;
+    top: 0;
+    left: 0;
+    height: 100%;
+    width: 3px;
+    background-color: var(--color-primary);
+    transform: scaleY(0);
+
+    transform-origin: center; //NOTE: cool
+    transition:
+      transform 0.2s,
+      width 0.4s cubic-bezier(1, 0, 0, 1) 0.2s,
+      //NOTE: duration timing delay
+      background-color 0.1s;
+  }
+
+  &__item:hover::before,
+  &__item--active::before {
+    transform: scaleY(1);
+    width: 100%;
+  }
+
+  &__item:active::before {
+    background-color: var(--color-primary-light);
+  }
+
+  &__link:link,
+  &__link:visited {
+    color: var(--color-grey-light-1);
+    text-decoration: none;
+    text-transform: uppercase;
+    display: flex;
+    align-items: center;
+    padding: 1.5rem 3rem;
+
+    position: relative;
+    z-index: 10;
+  }
+
+  &__icon {
+    width: 1.75rem;
+    height: 1.75rem;
+    margin-right: 2rem;
+    fill: currentColor; //NOTE: color of current or parent element
+  }
+}
+
+// Legal
+.legal {
+  font-size: 1.2rem;
+  color: var(--color-grey-light-4);
+  text-align: center;
+  padding: 2.5rem;
+}