@layer components {
  .panel {
    background-color: var(--panel-bg, var(--color-canvas));
    border: var(--panel-border-size, 1px) solid var(--panel-border-color, var(--color-ink-lighter));
    border-radius: var(--panel-border-radius, 1em);
    color: var(--color-ink);
    inline-size: var(--panel-size, 60ch);
    max-inline-size: 100%;
    padding: var(--panel-padding, var(--block-space));

    @media (min-width: 640px) {
      --panel-size: 100%;

      padding: var(--panel-padding, var(--block-space-double));
    }
  }

  .panel--wide {
    --panel-size: 60ch;
  }

  .panel--centered {
    --panel-border-size: 0;
    --panel-size: 100%;

    @media (min-width: 640px) {
      --panel-size: 42ch;
    }

    #main:has(&) {
      display: grid;
      justify-content: center;
      margin: auto;
    }
  }
}