.footer--brand-grid { padding: 70px var(--gutter) 40px; }
.footer--brand-grid {
  display: block;
  background: rgba(var(--color-background));
  color: rgba(var(--color-text));
}
.footer-grid {
  display: grid; width: 100%; max-width: var(--wrap); margin-inline: auto; gap: 40px; align-items: start;
  grid-template-columns: 1.35fr 1fr 1fr 1.25fr;
}
.footer-grid__columns { display: contents; }
.footer-grid__brand { grid-column: 1; grid-row: 1; }
.footer-grid__social { grid-column: 1; grid-row: 2; }
.footer-grid__newsletter { grid-column: 4; grid-row: 1 / span 2; }
.footer-grid__logo { height: 32px; width: auto; }
.footer-grid__logo--invert { filter: invert(1); }
.footer-grid__brand-name { font-family: var(--font-display); text-transform: uppercase; font-size: 22px; }
.footer-grid__title {
  font: 500 11px/1 var(--font-mono); letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--theme-accent); margin: 0 0 16px;
}
.footer-grid__links { display: grid; gap: 11px; font-size: 15px; }
.footer-grid__links a { color: rgba(var(--color-text)); }
.footer-grid__links a:hover { color: var(--theme-accent); }
.footer-grid__note { color: var(--theme-text-on-dark-faint); line-height: 1.55; margin-top: 18px; max-width: 34ch; font-size: 14px; }
.footer-grid__social-list { display: flex; gap: 10px; flex-wrap: wrap; }
.footer-grid__social-link {
  width: 42px; height: 42px; border-radius: var(--pill);
  border: 1px solid rgba(var(--color-text), 0.2); color: rgba(var(--color-text));
  display: inline-flex; align-items: center; justify-content: center;
  transition: background 0.16s ease, border-color 0.16s ease, color 0.16s ease;
}
.footer-grid__social-link:hover, a.footer-grid__social-link:hover { background: var(--theme-accent); border-color: var(--theme-accent); color: var(--theme-ink); }
.footer-grid__signup-form { display: block; }
.footer-grid__signup-text { color: var(--theme-text-on-dark-faint); font-size: 14px; line-height: 1.6; margin-bottom: 14px; text-wrap: pretty; }
.footer-grid__signup { display: flex; gap: 8px; flex-wrap: wrap; }
.footer-grid__signup .theme-input { flex: 1; min-width: 150px; }
.footer-grid__signup-success { font: 600 15px/1.4 var(--font-body); }
.footer-grid__bottom {
  width: 100%; max-width: var(--wrap); margin: 50px auto 0; padding-top: 24px; border-top: 1px solid rgba(var(--color-text), 0.12);
  display: flex; flex-wrap: wrap; gap: 14px 28px;
  font: 500 11px/1.6 var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--theme-text-mono);
}
.footer-grid__bottom-item--end { margin-left: auto; }
.footer-grid__bottom a { color: var(--theme-accent); }
.footer-grid__bottom a:hover { color: rgba(var(--color-text)); }
@media (max-width: 900px) {
  .footer--brand-grid { padding: 56px var(--gutter) 32px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-grid__brand, .footer-grid__social, .footer-grid__newsletter { grid-column: auto; grid-row: auto; }
  .footer-grid__newsletter { grid-column: 1 / -1; }
  .footer-grid__bottom { margin-top: 36px; }
  .footer-grid__bottom-item--end { margin-left: 0; }
}
@media (max-width: 620px) {
  .footer--brand-grid { padding: 44px var(--gutter) 28px; }
  .footer-grid { grid-template-columns: 1fr; gap: 26px; }
  .footer-grid__brand { order: 1; }
  .footer-grid__newsletter { order: 2; grid-column: auto; }
  .footer-grid__columns { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; order: 3; }
  .footer-grid__social { order: 4; }
  .footer-grid__logo { height: 26px; }
  .footer-grid__note { margin-top: 12px; font-size: 13px; max-width: 44ch; }
  .footer-grid__title { margin-bottom: 12px; }
  .footer-grid__links { gap: 9px; font-size: 14px; }
  .footer-grid__bottom { margin-top: 28px; padding-top: 18px; }
}
@media (max-width: 480px) {
  .footer-grid__bottom { gap: 10px 18px; font-size: 10px; }
}