Добавить редактор конфигурационных файлов XLX

public/assets/styles.css

@@ -207,7 +207,22 @@ input {
     font-size: 17px;
 }
 
-input:focus {
+textarea {
+    width: 100%;
+    min-height: 420px;
+    resize: vertical;
+    border: 1px solid var(--line);
+    border-radius: 8px;
+    padding: 16px;
+    background: #06070b;
+    color: var(--text);
+    font-family: Consolas, "Courier New", monospace;
+    font-size: 15px;
+    line-height: 1.55;
+}
+
+input:focus,
+textarea:focus {
     outline: 2px solid var(--accent);
     outline-offset: 2px;
 }
@@ -230,14 +245,81 @@ input:focus {
     min-height: 420px;
 }
 
+.muted-text {
+    max-width: 760px;
+    margin: 12px 0 0;
+    color: var(--muted);
+    font-size: 17px;
+    line-height: 1.45;
+}
+
+.config-editor {
+    display: grid;
+    gap: 18px;
+}
+
+.config-editor-head {
+    display: flex;
+    align-items: flex-start;
+    justify-content: space-between;
+    gap: 18px;
+}
+
+.file-tabs {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 10px;
+}
+
+.file-tab {
+    border: 1px solid var(--line);
+    border-radius: 8px;
+    padding: 12px 16px;
+    background: transparent;
+    color: var(--text);
+    font: inherit;
+    font-weight: 800;
+    cursor: pointer;
+}
+
+.file-tab.active {
+    border-color: var(--accent);
+    background: color-mix(in srgb, var(--accent) 18%, transparent);
+}
+
+.file-meta {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 10px;
+    color: var(--muted);
+    font-size: 14px;
+}
+
+.file-meta span {
+    border: 1px solid var(--line);
+    border-radius: 999px;
+    padding: 8px 12px;
+    background: var(--panel-2);
+}
+
+.editor-label {
+    color: var(--text);
+    font-size: 16px;
+}
+
 @media (max-width: 880px) {
     .hero,
     .grid,
     .panel.split,
-    .settings-form {
+    .settings-form,
+    .config-editor-head {
         grid-template-columns: 1fr;
     }
 
+    .config-editor-head {
+        display: grid;
+    }
+
     h1 {
         font-size: 44px;
     }