refactor: extract StreamNowButton component shared by hero and nav menu

DeepDrftPublic.Client/Controls/DeepDrftHero.razor.css

@@ -75,51 +75,9 @@
     animation-delay: 0.54s;
 }
 
-.btn-primary {
-    font-family: var(--deepdrft-font-mono);
-    font-size: 0.68rem;
-    letter-spacing: 0.2em;
-    text-transform: uppercase;
-    color: var(--deepdrft-white);
-    background: var(--deepdrft-navy);
-    border: none;
-    padding: 1rem 2.2rem;
-    cursor: pointer;
-    text-decoration: none;
-    transition: background 0.25s, transform 0.2s;
-    display: inline-block;
-}
-
-.btn-primary:hover {
-    background: var(--deepdrft-green);
-    transform: translateY(-1px);
-}
-
-.btn-ghost {
-    font-family: var(--deepdrft-font-mono);
-    font-size: 0.68rem;
-    letter-spacing: 0.2em;
-    text-transform: uppercase;
-    color: var(--deepdrft-navy);
-    background: transparent;
-    border: 1px solid var(--deepdrft-border);
-    padding: 1rem 2.2rem;
-    cursor: pointer;
-    text-decoration: none;
-    transition: border-color 0.25s, color 0.25s;
-    display: inline-block;
-}
-
-.btn-ghost:hover { border-color: var(--deepdrft-navy); }
-
 @media (max-width: 599px) {
     .hero-actions {
         flex-direction: column;
         align-items: stretch;
     }
-
-    .btn-primary,
-    .btn-ghost {
-        text-align: center;
-    }
 }