.share-water {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: .65rem 1rem;
  align-items: center;
  margin: .8rem 0 1rem;
  padding: .85rem;
  border: 1px solid var(--border);
  border-radius: .75rem;
  background: #f3f7f4;
}

.share-water h3 {
  margin: .08rem 0 0;
  font-size: 1rem;
}

.share-water-eyebrow {
  margin: 0;
  color: var(--accent);
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .1em;
}

.share-water-button {
  border: 0;
  border-radius: .55rem;
  padding: .65rem .8rem;
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  white-space: nowrap;
}

.share-water-button:hover {
  filter: brightness(.94);
}

.share-water-status {
  grid-column: 1 / -1;
  min-height: 1.1em;
  margin: 0;
  color: var(--muted);
  font-size: .78rem;
}

.site-footer {
  position: relative;
  z-index: 1100;
  border-top: 1px solid var(--border);
  background: var(--panel);
  color: var(--muted);
  font-size: .78rem;
}

.site-footer-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 1500px;
  margin: 0 auto;
  padding: .7rem 1rem;
}

.site-footer nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: .75rem;
}

.site-footer a,
.site-footer summary {
  color: var(--accent);
  font-weight: 750;
  text-decoration: none;
  cursor: pointer;
}

.site-footer a:hover,
.site-footer summary:hover {
  text-decoration: underline;
}

.site-footer details {
  position: relative;
}

.site-footer summary {
  list-style: none;
}

.site-footer summary::-webkit-details-marker {
  display: none;
}

.site-footer details p {
  position: absolute;
  right: 0;
  bottom: calc(100% + .65rem);
  width: min(360px, calc(100vw - 2rem));
  margin: 0;
  padding: .8rem;
  border: 1px solid var(--border);
  border-radius: .7rem;
  background: var(--panel);
  box-shadow: 0 8px 28px rgba(0,0,0,.18);
  color: var(--muted);
  line-height: 1.45;
}

@media (max-width: 520px) {
  .share-water {
    grid-template-columns: 1fr;
  }

  .share-water-button {
    width: 100%;
  }

  .site-footer-main {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-footer nav {
    justify-content: flex-start;
  }

  .site-footer details p {
    position: fixed;
    right: 1rem;
    bottom: 4rem;
    left: 1rem;
    width: auto;
  }
}