.assistant-settings { max-width: 680px; margin: 24px auto; padding: 20px; }
.assistant-settings fieldset { margin: 20px 0; padding: 18px; border: 1px solid var(--border, #aaa); border-radius: 12px; }
.assistant-settings label { display: block; margin: 12px 0; }
.assistant-settings input:not([type="checkbox"]), .assistant-settings select { max-width: 200px; padding: 6px; }
.assistant-settings textarea { display: block; width: 100%; box-sizing: border-box; margin-top: 10px; padding: 12px; }
.assistant-settings p { line-height: 1.5; }