.site-footer {
  margin-top: auto;
  padding-block: var(--space-l);
  background: var(--glass-background);
  border-top: 1px solid var(--glass-border);
  backdrop-filter: blur(18px);
}

.site-footer__inner {
  display: grid;
  gap: var(--space-m);
  align-items: center;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  justify-items: center;
}

.site-footer__brand img {
  width: 3rem;
  height: auto;
}

.site-footer__meta {
  display: grid;
  gap: var(--space-xs);
  color: var(--color-muted);
}

/* Center children inside the middle footer column */
.site-footer__center {
  justify-items: center;
}

.site-footer__meta a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-s);
  color: inherit;
}

.site-footer__meta a:hover,
.site-footer__meta a:focus-visible {
  color: var(--color-text);
}

.site-footer__contact i {
  font-size: 1.1rem;
  line-height: 1;
}

.site-footer__socials {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  justify-content: center;
}

.site-footer__socials a {
  width: 2.25rem;
  height: 2.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--color-surface);
  transition: transform var(--transition-base), border-color var(--transition-base), background-color var(--transition-base);
}

.site-footer__socials i {
  font-size: 1.15rem;
  line-height: 1;
}

.site-footer__socials a:hover,
.site-footer__socials a:focus-visible {
  transform: translateY(-2px);
  border-color: var(--glass-border);
  background: var(--color-surface-strong);
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-s);
  justify-content: center;
}

.site-footer__link-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xs);
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--glass-border);
  background: var(--color-surface);
  color: inherit;
  font-weight: 500;
  transition: transform var(--transition-base), border-color var(--transition-base), background-color var(--transition-base);
}

.site-footer__link-button:hover,
.site-footer__link-button:focus-visible {
  transform: translateY(-1px);
  border-color: var(--glass-border);
  background: var(--color-surface-strong);
}

.site-footer__copy {
  margin: var(--space-m) auto 0;
  max-width: var(--layout-max-width);
  padding-inline: var(--space-l);
  color: var(--color-muted);
  font-size: 0.85rem;
  text-align: center;
}

.theme-menu {
  position: relative;
}

.theme-menu__button {
  display: inline-flex;
  align-items: center;
  gap: var(--space-s);
  padding: 0.55rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--glass-border);
  background: var(--color-surface);
  color: inherit;
  cursor: pointer;
  transition: transform var(--transition-base), background-color var(--transition-base);
}

.theme-menu__button:hover,
.theme-menu__button:focus-visible {
  transform: translateY(-1px);
  background: var(--color-surface-strong);
}

.theme-menu__popover {
  position: absolute;
  bottom: calc(100% + var(--space-s));
  right: 0;
  display: grid;
  gap: var(--space-xs);
  padding: var(--space-s);
  width: max-content;
  min-width: 12rem;
  border-radius: var(--radius-l);
  border: 1px solid var(--glass-border);
  background: var(--glass-background);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
  opacity: 0;
  pointer-events: none;
  transform: translateY(0.5rem);
  transition: opacity 150ms ease, transform 150ms ease;
  z-index: 5;
}

.theme-menu__popover.is-visible {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

.theme-menu__option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-s);
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-s);
  color: var(--color-muted);
  cursor: pointer;
  transition: background-color var(--transition-base), color var(--transition-base);
}

.theme-menu__option:hover,
.theme-menu__option:focus-within {
  color: var(--color-text);
  background: var(--color-surface);
}

.theme-menu__option input {
  accent-color: var(--color-accent);
}

@media (max-width: 40rem) {
  .site-footer {
    padding-block: var(--space-m);
  }

  .site-footer__inner {
    grid-template-columns: 1fr;
    gap: var(--space-s);
  }

  .site-footer__brand img {
    width: 2.5rem;
  }

  .site-footer__copy {
    margin-top: var(--space-s);
  }
}

@media (min-width: 60rem) {
  .site-footer__inner {
    grid-template-columns: 1fr 1.4fr 1fr;
    grid-template-areas: 'brand center contact';
  }

  .site-footer__brand {
    grid-area: brand;
    justify-self: start;
  }

  .site-footer__center {
    grid-area: center;
    justify-self: center;
  }

  .site-footer__contact {
    grid-area: contact;
    justify-self: end;
  }
}