.adv-preview {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-5);
  min-height: 100%;
}

.adv-preview__toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-xs);
}

@media (max-width: 767px) {
  .adv-preview__toolbar {
    border-radius: var(--radius-md);
    padding: var(--space-2);
    max-width: 100%;
    overflow-x: auto;
    flex-wrap: nowrap;
    justify-content: flex-start;
    width: 100%;
  }
}

.adv-preview__toolbar-group {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.adv-preview__toolbar-group + .adv-preview__toolbar-group::before {
  content: "";
  display: block;
  width: 1px;
  height: 20px;
  background: var(--color-line);
  margin-inline: var(--space-2);
}

@media (max-width: 767px) {
  .adv-preview__toolbar-group + .adv-preview__toolbar-group::before {
    display: none;
  }
}

.adv-preview__toolbar button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 34px;
  padding: 0 0.6em;
  background: transparent;
  border: 0;
  border-radius: var(--radius-pill);
  color: var(--color-muted);
  font-size: var(--font-size-sm);
  font-weight: var(--weight-medium);
  cursor: pointer;
  transition: var(--transition-base);
}
.adv-preview__toolbar button:hover {
  background: var(--color-bg-muted);
  color: var(--color-ink);
}
.adv-preview__toolbar button[aria-pressed="true"] {
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-weight: var(--weight-semibold);
}
.adv-preview__toolbar button:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 1px;
}

.adv-preview__toolbar-label {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  padding-inline: var(--space-3);
}

.adv-preview__pages {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-7);
  width: 100%;
}

@media (max-width: 900px) {
  .adv-preview__pages {
    gap: var(--space-5);
  }
}

.adv-preview__empty {
  padding: var(--space-11) var(--space-6);
  text-align: center;
  color: var(--color-muted);
  font-size: var(--font-size-base);
}

.adv-preview__footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-3);
  padding-top: var(--space-5);
  font-size: var(--font-size-sm);
  color: var(--color-muted);
}

@media (max-width: 767px) {
  .adv-preview__footer {
    padding-top: var(--space-3);
    flex-direction: column;
    gap: var(--space-2);
  }
}