/* Page structure: sticky top bar and one centered column. */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  height: var(--topbar-height);
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.topbar-inner {
  max-width: 54rem;
  height: 100%;
  margin-inline: auto;
  padding-inline: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav {
  display: flex;
  gap: .25rem;
}

main,
.colophon {
  max-width: 54rem;
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.hero { padding-block: clamp(3rem, 12vw, 7rem) 3rem; }

main > section + section { margin-top: 4.5rem; }

.letters { margin-top: 1.5rem; }

.letter-row {
  display: grid;
  grid-template-columns: 4rem 1fr;
  align-items: baseline;
  gap: 1rem;
  padding-block: .5rem;
  border-top: 1px solid var(--line);
}
.letter-row:last-child { border-bottom: 1px solid var(--line); }

.paragraphs,
.releases {
  margin-top: 1.5rem;
  display: grid;
  gap: 2rem;
}

.contact-list {
  margin-top: 1.5rem;
  display: grid;
  gap: 1rem;
}

.colophon {
  margin-top: 5rem;
  padding-block: 1.5rem 2.5rem;
  border-top: 1px solid var(--line);
}

@media (max-width: 40rem) {
  .brand { display: none; }
  .topbar-inner { justify-content: center; }
  .letter-row { grid-template-columns: 3rem 1fr; }
}

/* Campaigns: one column, poster capped in width so it stays portrait-sized. */
.campaign-list {
  margin-top: 1.5rem;
  display: grid;
  gap: 3.5rem;
}

.campaign { max-width: 30rem; }

.campaign .poster { margin: 1.5rem 0 0; }

/* Five nav links may not fit on narrow screens, so let the list scroll. */
@media (max-width: 40rem) {
  .nav {
    overflow-x: auto;
    max-width: 100%;
  }
}