Added Feedback section.

app/application/resources/site/scss/app.scss

@@ -1,5 +1,6 @@
 @import url('https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,400;0,700;1,400;1,700&display=swap');
 @import "reset";
+@import "forms";
 
 html,
 body {

app/application/resources/site/scss/forms.scss

@@ -0,0 +1,86 @@
+.form-block {
+    padding: 10px 0;
+
+    label {
+        display: block;
+        font-size: 16px;
+        font-weight: 600;
+        padding-bottom: 7px;
+        color: #000;
+
+        span {
+            font-size: 14px;
+            font-weight: 400;
+            color: #555;
+        }
+    }
+
+    .form-control {
+        display: block;
+        width: 100%;
+        padding: 6px 12px;
+        border-radius: 6px;
+        border: 1px solid #ddd;
+    }
+
+    .form-control.is-invalid {
+        border-color: #dc3545;
+    }
+
+    .form-control:focus,
+    .form-control:focus-visible {
+        outline: 2px solid #006ce7;
+    }
+
+    .invalid-feedback {
+        display: block;
+        padding: 7px 10px;
+        color: #dc3545;
+        font-size: 14px;
+        border: 1px solid #dc3545;
+        border-radius: 6px;
+        margin-top: 10px;
+        margin-bottom: 10px;
+    }
+}
+
+.button {
+    background: #006ce7;
+    border: 1px solid #002452;
+    border-radius: 6px;
+    cursor: pointer;
+    font-weight: 600;
+    font-size: 16px;
+    padding: 14px 24px;
+    color: #fff;
+}
+.button:hover {
+    opacity: 0.8;
+    border-color: #006ce7;
+    color: #ccc;
+}
+
+.captcha-service-kor-elf {
+    position: relative;
+    z-index: 10;
+}
+
+.alert {
+    border-radius: 6px;
+    font-size: 16px;
+    padding: 14px 24px;
+
+    ul {
+        padding: 0;
+        margin: 0;
+        list-style: none;
+    }
+}
+.alert.alert-success {
+    border: 1px solid #0a6f4d;
+    color: #0a6f4d;
+}
+.alert.alert-danger {
+    border: 1px solid #dc3545;
+    color: #dc3545;
+}