/* Share button, toast, fallback sheet */

.share-btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: var(--tap-min, 44px);
  min-height: var(--tap-min, 44px);
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-elevated);
  color: var(--text);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  box-shadow: 0 1px 2px color-mix(in srgb, var(--text) 8%, transparent);
}

.share-btn:hover,
.share-btn:focus-visible {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-soft);
  outline: none;
}

.share-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.share-btn__icon {
  display: block;
  flex-shrink: 0;
}

/* Top bar placement (desktop+) */
.site-header__actions {
  display: none;
  align-items: center;
  flex-shrink: 0;
}

.share-btn--header {
  border-radius: 2px;
}

/* Mobile FAB — thumb zone */
.share-fab {
  position: fixed;
  z-index: 30;
  right: max(1rem, env(safe-area-inset-right, 0px));
  bottom: max(1rem, env(safe-area-inset-bottom, 0px));
  width: var(--tap-min, 44px);
  height: var(--tap-min, 44px);
  border-radius: 999px;
  box-shadow: 0 4px 16px color-mix(in srgb, var(--text) 18%, transparent);
  background: var(--bg-elevated);
}

@media (min-width: 1024px) {
  .site-header__actions {
    display: flex;
  }

  .share-fab {
    display: none;
  }
}

/* Inline section share */
.share-section-heading {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.share-btn--inline {
  min-width: 2rem;
  min-height: 2rem;
  width: 2rem;
  height: 2rem;
  border-radius: 2px;
  box-shadow: none;
  opacity: 0.7;
}

.share-btn--inline:hover,
.share-btn--inline:focus-visible {
  opacity: 1;
}

@media (max-width: 1023px) {
  .share-btn--inline {
    min-width: var(--tap-min, 44px);
    min-height: var(--tap-min, 44px);
    width: var(--tap-min, 44px);
    height: var(--tap-min, 44px);
  }
}

/* Toast */
.share-toast {
  position: fixed;
  z-index: 40;
  left: 50%;
  bottom: max(5rem, calc(env(safe-area-inset-bottom, 0px) + 5rem));
  transform: translateX(-50%) translateY(0.5rem);
  padding: 0.65rem 1rem;
  border-radius: 999px;
  background: var(--text);
  color: var(--bg);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  white-space: nowrap;
}

.share-toast--visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Fallback sheet */
.share-fallback {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 1rem;
  padding-bottom: max(1rem, env(safe-area-inset-bottom, 0px));
  background: color-mix(in srgb, #000 40%, transparent);
}

.share-fallback[hidden] {
  display: none !important;
}

.share-fallback__sheet {
  width: 100%;
  max-width: 22rem;
  padding: 1rem;
  border-radius: 12px 12px 8px 8px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-family: var(--font-sans);
}

.share-fallback__title {
  margin: 0 0 0.35rem;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
}

.share-fallback__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: var(--tap-min, 44px);
  padding: 0 0.85rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}

.share-fallback__btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

.share-fallback__close {
  appearance: none;
  margin-top: 0.25rem;
  min-height: var(--tap-min, 44px);
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}

@media (min-width: 640px) {
  .share-fallback {
    align-items: center;
  }

  .share-fallback__sheet {
    border-radius: 8px;
  }
}