.fs-blog-tools {
  --fs-tool-bg: #ffffff;
  --fs-tool-border: #d8dee8;
  --fs-tool-text: #162033;
  --fs-tool-muted: #5c677a;
  --fs-tool-accent: #155eef;
  --fs-tool-shadow: 0 12px 30px rgba(18, 28, 45, 0.12);
}

.fs-blog-toc {
  position: fixed;
  top: 112px;
  left: 24px;
  z-index: 40;
  width: min(280px, calc(100vw - 48px));
  max-height: calc(100vh - 144px);
  color: var(--fs-tool-text);
  transition: transform 180ms ease, opacity 180ms ease;
}

.fs-blog-toc.is-collapsed .fs-blog-toc__panel,
.fs-blog-toc.is-auto-hidden .fs-blog-toc__panel {
  display: none;
}

.fs-blog-toc.is-auto-hidden {
  transform: translateX(-8px);
  opacity: 0.72;
}

.fs-blog-toc__toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--fs-tool-border);
  border-radius: 6px;
  background: var(--fs-tool-bg);
  color: var(--fs-tool-text);
  box-shadow: var(--fs-tool-shadow);
  cursor: pointer;
}

.fs-blog-toc__toggle-lines,
.fs-blog-toc__toggle-lines::before,
.fs-blog-toc__toggle-lines::after {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  content: "";
}

.fs-blog-toc__toggle-lines {
  position: relative;
}

.fs-blog-toc__toggle-lines::before {
  position: absolute;
  top: -6px;
}

.fs-blog-toc__toggle-lines::after {
  position: absolute;
  top: 6px;
}

.fs-blog-toc__panel {
  margin-top: 10px;
  overflow: auto;
  max-height: calc(100vh - 196px);
  border: 1px solid var(--fs-tool-border);
  border-radius: 8px;
  background: var(--fs-tool-bg);
  box-shadow: var(--fs-tool-shadow);
}

.fs-blog-toc__title {
  margin: 0;
  padding: 14px 16px 8px;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.3;
}

.fs-blog-toc__list {
  list-style: none;
  margin: 0;
  padding: 4px 0 12px;
}

.fs-blog-toc__link {
  display: block;
  padding: 7px 16px;
  color: var(--fs-tool-muted);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.35;
  text-decoration: none;
}

.fs-blog-toc__link:hover,
.fs-blog-toc__link.is-active {
  color: var(--fs-tool-accent);
  background: rgba(21, 94, 239, 0.08);
  font-weight: 700;
}

.fs-blog-toc__link--h3 {
  padding-left: 28px;
  font-size: 12px;
}

.fs-blog-share {
  position: fixed;
  top: 112px;
  right: 24px;
  z-index: 40;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.fs-blog-share__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border: 1px solid var(--fs-tool-border);
  border-radius: 8px;
  background: var(--fs-tool-bg);
  color: var(--fs-tool-text);
  box-shadow: var(--fs-tool-shadow);
  font-size: 16px;
  font-weight: 900;
  line-height: 1;
  text-decoration: none;
  text-transform: uppercase;
  cursor: pointer;
}

.fs-blog-share__button:hover {
  color: var(--fs-tool-accent);
  border-color: rgba(21, 94, 239, 0.45);
}

@media (max-width: 1180px) {
  .fs-blog-toc {
    left: 16px;
    top: auto;
    bottom: 18px;
    max-height: 60vh;
  }

  .fs-blog-share {
    top: auto;
    right: 16px;
    bottom: 18px;
  }

  .fs-blog-share__button:not(:first-child) {
    display: none;
  }
}

@media print {
  .fs-blog-toc,
  .fs-blog-share {
    display: none;
  }
}