checkauth logic & login dialog

app/assets/styles/intro.css

@@ -6,6 +6,7 @@ body {
     min-height: 100vh;
     background: #000;
     overflow: hidden;
+    font-family: sans;
 }
 
 .glowing {
@@ -117,7 +118,6 @@ body {
     will-change: filter, opacity;
     color: #FFF;
     position: absolute;
-    font-family: sans;
     text-shadow: 3px -3px 5px #C5F7FF;
 }
 
@@ -135,14 +135,54 @@ body {
 #startbtn{
     cursor: default;
     position: absolute;
-    bottom: 25%;
+    bottom: 15vh;
     color: aliceblue;
-    font-family: sans;
     font-style: italic;
     font-size: 40px;
     border-radius: 100px;
     padding: 5px 40px;
-    background: radial-gradient(#282362, #0a8200);
+    background: radial-gradient(#82cc50, #0a8200);
     box-shadow: 2px 2px 10px #BAFFEF, -2px -2px 10px #BAFFEF, -2px 0 10px #BAFFEF, 0 -2px 10px #BAFFEF;
     animation: startbtnanim 5s ease-out forwards;
+}
+
+#startbtn[disabled]{
+    filter: brightness(.3);
+}
+
+#login-dialog{
+    width: 22rem;
+    z-index: 99;
+    border-radius: 2rem;
+    box-shadow: 2px 2px 10px #BAFFEF, -2px -2px 10px #BAFFEF, -2px 0 10px #BAFFEF, 0 -2px 10px #BAFFEF;
+    background: radial-gradient(#82cc50, #0a8200);
+    padding: 2rem 3rem 0 3rem;
+    margin-top: -68vh;
+    opacity: 0;
+    visibility: hidden;
+    transition: opacity 0.5s ease;
+    font-size: 1.3rem;
+}
+#login-dialog.show {
+    opacity: 1;
+    visibility: visible;
+}
+#login-dialog > div{
+    display: grid !important;
+    grid-gap: 10px;
+    grid-template-columns: 7rem 15rem;
+}
+#login-dialog > div{
+    margin-bottom: 1rem;
+}
+#login-dialog input{
+    line-height: 2rem;
+    width: 15rem;
+    border-radius: 5px;
+    border: none;
+    font-size: 1.3rem;
+}
+#login-dialog button{
+    justify-self: end;
+    font-size: 1.3rem;
 }