:root {
  --inline-space: 1ch;
  --inline-space-half: calc(var(--inline-space) / 2);
  --inline-space-double: calc(var(--inline-space) * 2);

  --block-space: 1rem;
  --block-space-half: calc(var(--block-space) / 2);
  --block-space-double: calc(var(--block-space) * 2);

  --font-small-responsive: clamp(0.8rem, 2cqi, 1rem);
  --font-medium-responsive: clamp(1rem, 2.5cqi, 1.4rem);
  --font-large-responsive: clamp(1.3rem, 4cqi, 1.8rem);
  --font-x-large-responsive: clamp(1.8rem, 5cqi, 3.2rem);
}

/* Text */
.txt-small { font-size: 0.8rem; }
.txt-medium { font-size: 1rem; }
.txt-large { font-size: 1.4rem; }
.txt-x-large { font-size: 1.8rem; }
.txt-xx-large { font-size: 2.4rem; }

.txt-small--responsive { font-size: var(--font-small-responsive); }
.txt-medium--responsive { font-size: var(--font-medium-responsive); }
.txt-large--responsive { font-size: var(--font-large-responsive); }
.txt-x-large--responsive { font-size: var(--font-x-large-responsive); }