filament/packages/forms/resources/css/components/code-editor.css

.fi-fo-code-editor {
    @apply overflow-hidden;

    & .cm-editor {
        &.cm-focused {
            @apply outline-none!;
        }

        & .cm-gutters {
            @apply min-h-48! border-e-gray-300! bg-gray-100! dark:border-e-gray-800! dark:bg-gray-950!;

            & .cm-gutter {
                &.cm-lineNumbers {
                    & .cm-gutterElement {
                        @apply ms-1 rounded-s-md;

                        &.cm-activeLineGutter {
                            @apply bg-gray-200! dark:bg-gray-800!;
                        }
                    }
                }

                &.cm-foldGutter {
                    & .cm-gutterElement {
                        &.cm-activeLineGutter {
                            @apply bg-gray-200! dark:bg-gray-800!;
                        }
                    }
                }
            }
        }

        & .cm-scroller {
            @apply min-h-48!;
        }

        & .cm-line {
            @apply me-1 rounded-e-md;
        }
    }

    &.fi-disabled {
        & .cm-editor {
            & .cm-gutters {
                & .cm-gutter {
                    &.cm-lineNumbers {
                        & .cm-gutterElement {
                            &.cm-activeLineGutter {
                                @apply bg-transparent!;
                            }
                        }
                    }

                    &.cm-foldGutter {
                        & .cm-gutterElement {
                            &.cm-activeLineGutter {
                                @apply bg-transparent!;
                            }
                        }
                    }
                }
            }

            & .cm-line {
                &.cm-activeLine {
                    @apply bg-transparent!;
                }
            }
        }
    }
}