Completa UI e test del form contatti.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/public/marketing.css

@@ -3381,3 +3381,87 @@ a.replay-archive__thumb:hover {
   border-color: #e53935;
   background: rgba(229, 57, 53, 0.16);
 }
+
+.contacts-hero h1 {
+  max-width: 22ch;
+}
+.contacts-hero__meta {
+  margin: 0;
+  color: #888;
+  font-size: 0.92rem;
+}
+.contacts-channels {
+  display: grid;
+  grid-template-columns: repeat(3, minmax(0, 1fr));
+  gap: 16px;
+}
+.contacts-channels .feature-card h2 {
+  margin: 0 0 8px;
+  font-size: 1.05rem;
+}
+.contacts-channels__email {
+  margin: 12px 0 0;
+}
+.contacts-channels__email a {
+  color: #e53935;
+  font-weight: 600;
+  word-break: break-all;
+}
+.contacts-company__details {
+  list-style: none;
+  margin: 0;
+  padding: 0;
+  text-align: center;
+  color: #ccc;
+  line-height: 1.7;
+}
+.contacts-form-panel {
+  max-width: 640px;
+  margin: 0 auto;
+  background: #14141c;
+  border: 1px solid #2a2a36;
+  border-radius: 14px;
+  padding: 28px 24px;
+}
+.contacts-form-panel h2 { margin: 0 0 10px; }
+.contacts-form-panel__lead {
+  margin: 0 0 20px;
+  color: #aaa;
+  line-height: 1.55;
+}
+.contacts-form textarea {
+  width: 100%;
+  padding: 12px 14px;
+  margin-bottom: 12px;
+  border-radius: 8px;
+  border: 1px solid #3d3d4a;
+  background: #1c1c26;
+  color: #fff;
+  font-size: 1rem;
+  font-family: inherit;
+  resize: vertical;
+  min-height: 140px;
+  box-sizing: border-box;
+}
+.contacts-form textarea:focus {
+  outline: none;
+  border-color: #e53935;
+  box-shadow: 0 0 0 2px rgba(229, 57, 53, 0.25);
+}
+.contacts-form .btn-primary {
+  width: 100%;
+  margin-top: 8px;
+  padding: 14px;
+}
+.contacts-hp {
+  position: absolute;
+  left: -10000px;
+  width: 1px;
+  height: 1px;
+  overflow: hidden;
+}
+@media (max-width: 999px) {
+  .contacts-channels {
+    grid-template-columns: 1fr;
+  }
+}