Block editor styling strategy

_ blocks.scss

.block-accordion {
  // Generic styles
  
  @if ($is-editor == true) {
    // Styles you need for editing, like opening this accordion so you can access the content 
  }
  @if ($is-editor == false) {
    // Or maybe some other styles that disagree with the editor for whatever reason
  }
}

_variables.scss

$is-editor: false !default;

// Other variables

editor.scss

$is-editor: true;

@import "main";

// Usually add other editor-specific styles here

main.scss

@import "variables";
@import "mixins";
@import "base";
@import "blocks";
@import "etc";