@layer theme {
  :root {
    /* ── Base Spacing Unit ── */
    --spacing: 0.25rem;

    /* ── Breakpoints ── */
    --breakpoint-sm: 40rem;
    --breakpoint-md: 48rem;
    --breakpoint-lg: 64rem;
    --breakpoint-xl: 80rem;
    --breakpoint-2xl: 96rem;

    /* ── Container Sizes ── */
    --container-3xs: 16rem;
    --container-2xs: 18rem;
    --container-xs: 20rem;
    --container-sm: 24rem;
    --container-md: 28rem;
    --container-lg: 32rem;
    --container-xl: 36rem;
    --container-2xl: 42rem;
    --container-3xl: 48rem;
    --container-4xl: 56rem;
    --container-5xl: 64rem;
    --container-6xl: 72rem;
    --container-7xl: 80rem;
  }
}