bearbeiten Button für admin angepasst, zusage funktion auch hinzugefügt

app/static/style.css

@@ -30,16 +30,6 @@ a {
     color: #ffffff;
 }
 
-.edit-button {
-    display: inline-block;
-    padding: 10px 14px;
-    background: #238636;
-    color: #ffffff;
-    border-radius: 9px;
-    text-decoration: none;
-    font-weight: bold;
-}
-
 .detail-actions {
     margin-top: 30px;
     display: flex;
@@ -51,26 +41,44 @@ a {
     margin: 0;
 }
 
-.delete-concert-button {
-    display: inline-block;
-    padding: 10px 14px;
-    background: #b42318;
+.concert-action {
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    min-height: 42px;
+    padding: 10px 16px;
     color: #ffffff;
     border: 0;
-    border-radius: 9px;
+    border-radius: 10px;
     font: inherit;
     font-weight: bold;
+    line-height: 1;
+    text-decoration: none;
     cursor: pointer;
+    transition: transform 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
 }
 
-.delete-concert-button:hover {
-    background: #dc2626;
+.concert-action:hover {
+    transform: translateY(-1px);
+    box-shadow: 0 5px 16px rgba(0, 0, 0, 0.25);
 }
 
-.edit-button:hover {
+.concert-action-edit {
+    background: #238636;
+}
+
+.concert-action-edit:hover {
     background: #2ea043;
 }
 
+.concert-action-delete {
+    background: #b42318;
+}
+
+.concert-action-delete:hover {
+    background: #dc2626;
+}
+
 .concert-detail {
     background: #161b22;
     border: 1px solid #30363d;
@@ -180,6 +188,70 @@ a {
     color: #8b949e;
 }
 
+.attendance-section {
+    margin-top: 35px;
+    padding: 25px;
+    background: #0d1117;
+    border: 1px solid #30363d;
+    border-radius: 12px;
+}
+
+.attendance-section h2 {
+    margin-top: 0;
+}
+
+.attendance-section > p {
+    color: #8b949e;
+}
+
+.attendance-actions {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 10px;
+    margin-top: 18px;
+}
+
+.attendance-actions form {
+    margin: 0;
+}
+
+.attendance-option {
+    padding: 10px 14px;
+    background: #161b22;
+    border: 1px solid #3d4856;
+    border-radius: 9px;
+    color: #e6edf3;
+    font: inherit;
+    font-weight: bold;
+    cursor: pointer;
+}
+
+.attendance-option:hover,
+.attendance-option.is-selected {
+    border-color: #58a6ff;
+    background: #1b3554;
+}
+
+.attendance-option.is-selected {
+    color: #ffffff;
+}
+
+.attendance-list {
+    margin-top: 20px;
+    color: #b8c1cc;
+}
+
+.attendance-list summary {
+    color: #58a6ff;
+    font-weight: bold;
+    cursor: pointer;
+}
+
+.attendance-list ul {
+    margin: 12px 0 0;
+    padding-left: 22px;
+}
+
 @media (max-width: 600px) {
 
     .container {