.gal-head {
  position: sticky;
  top: 0;
  z-index: 40;
  min-height: calc(var(--h3-row-h) + env(safe-area-inset-top));
  display: flex;
  align-items: center;
  gap: var(--h3-header-gap);
  padding: env(safe-area-inset-top) var(--h3-gap) 0;
  background: var(--h3-bg-header);
  border-bottom: 1px solid var(--h3-line);
}

.gal-back,
.gal-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--h3-text);
  font-size: .95rem;
  font-weight: 600;
}

.gal-back:hover { color: var(--h3-primary-text); }

.gal-brand img { height: 26px; width: auto; }

.gal-head-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
}

.gal-sub {
  margin: 0;
  max-width: 60ch;
  color: var(--h3-text-dim2);
  font-size: 1rem;
}

.gal-cta {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 24px 28px;
  border: 1px solid transparent;
  border-radius: var(--h3-r-card);
  background:
    linear-gradient(var(--h3-bg-header), var(--h3-bg-header)) padding-box,
    var(--h3-grad-accent) border-box;
}

.gal-cta-body { min-width: 0; }

.gal-cta-title {
  margin: 0 0 6px;
  font-size: clamp(1.1rem, 1.8vw, 1.35rem);
  font-weight: 700;
}

.gal-cta-text {
  margin: 0;
  max-width: 60ch;
  color: var(--h3-text-dim);
  font-size: .95rem;
}

.gal-cta-btn {
  margin-left: auto;
  flex: none;
}

@media (max-width: 639px) {
  .gal-cta {
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
    padding: 20px;
  }
  .gal-cta-btn { margin-left: 0; }
}

@media (max-width: 899px) {
  .h3-tabbar { grid-template-columns: repeat(3, 1fr); }
  .h3-main { padding-bottom: calc(var(--h3-gap) + 66px + env(safe-area-inset-bottom)); }
}

@media (max-width: 720px) {
  .gal-install { display: none; }
}