/* ── Page Navigation ── */
.page-nav {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: var(--grid-gutter);
  max-width: var(--container-max);
  margin-top: 6.25rem;
  margin-bottom: 12.5rem;
  padding: 0 var(--section-pad-x);
}

.page-nav__link {
  grid-column: 11;
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto;
  column-gap: 0.75rem;
  text-decoration: none;
  color: var(--black);
  transition: color 0.2s;
}

.page-nav__link--back {
  grid-template-columns: auto 1fr;
}

.page-nav__label {
  grid-column: 1;
  grid-row: 1;
  align-self: center;   /* center against the arrow in the row */
  text-align: right;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: var(--fs-body);
  white-space: nowrap;
}

.page-nav__arrow {
  grid-column: 2;
  grid-row: 1;
  align-self: center;   /* center against the label text in the row */
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 1px solid var(--black);
  border-radius: 50%;
  font-size: var(--fs-body);
  line-height: 1;
  transition: background 0.2s, color 0.2s;
}

/* The CSS border is the circle; hide the SVG's own redundant circle */
.page-nav__arrow circle {
  display: none;
}

.page-nav__link:hover .page-nav__arrow {
  background: var(--black);
  color: var(--white);
}

.page-nav__sub {
  grid-column: 1;
  grid-row: 2;
  margin-top: -3px;   /* close the slack left by centering the label in row 1 */
  text-align: right;
  font-family: var(--font-italic);
  font-size: var(--fs-body);
}

/* ── Back + forward layout ── */
.page-nav--between .page-nav__link--back {
  grid-column: 2;
}

.page-nav--between .page-nav__link:not(.page-nav__link--back) {
  grid-column: 11;
}

.page-nav__link--back .page-nav__arrow {
  grid-column: 1;
  grid-row: 1;
}

.page-nav__link--back .page-nav__label {
  grid-column: 2;
  grid-row: 1;
  text-align: left;
}

.page-nav__link--back .page-nav__sub {
  grid-column: 2;
  grid-row: 2;
  text-align: left;
}

@media (max-width: 768px) {
  .page-nav { 
    margin-top: 3.75rem;
    margin-bottom: 5.25rem;
  }
  
  .page-nav,
  .page-nav--between {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
  }

  /* With both back + forward links, push them to opposite edges */
  .page-nav--between {
    justify-content: space-between;
  }

  .page-nav__link,
  .page-nav--between .page-nav__link,
  .page-nav--between .page-nav__link--back {
    grid-column: auto;
  }

  .page-nav__arrow {
    width: 23px;
    height: 23px;
  }

  .page-nav__label,
  .page-nav__sub {
    font-size: var(--fs-body);
  }
}