.seo-block {
  padding: 0 0 var(--space-section);
  background: var(--bg-page);
}

.seo-block__inner {
  width: min(100%, 980px);
  margin-inline: auto;
  padding: clamp(18px, 2.4vw, 28px);
  border-radius: 16px;
  border: 1px solid var(--border-soft);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0) 100%),
    rgba(18, 19, 21, 0.72);
}

.seo-block__title {
  margin: 0 0 14px;
  font-size: clamp(24px, 2.8vw, 32px);
  line-height: 1.18;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.seo-block__content-wrap {
  position: relative;
  --seo-block-collapsed-height: 96px;
}

.seo-block__content-wrap.is-collapsed {
  max-height: var(--seo-block-collapsed-height);
  overflow: hidden;
}

.seo-block__content-wrap.is-collapsed::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 52px;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    rgba(12, 13, 16, 0) 0%,
    rgba(12, 13, 16, 0.9) 78%,
    rgba(12, 13, 16, 0.98) 100%
  );
}

.seo-block__content {
  font-size: 16px;
  line-height: 1.55;
  color: var(--text-muted);
}

.seo-block__content h3,
.seo-block__content h4 {
  margin: 22px 0 10px;
  color: var(--text-primary);
  line-height: 1.32;
}

.seo-block__content h3 {
  font-size: 20px;
  font-weight: 600;
}

.seo-block__content h4 {
  font-size: 18px;
  font-weight: 600;
}

.seo-block__content p {
  margin: 0 0 12px;
}

.seo-block__content p:last-child {
  margin-bottom: 0;
}

.seo-block__content ul,
.seo-block__content ol {
  margin: 0 0 12px;
  padding-left: 22px;
}

.seo-block__content li {
  margin-bottom: 6px;
}

.seo-block__content li:last-child {
  margin-bottom: 0;
}

.seo-block__content strong {
  color: var(--text-primary);
  font-weight: 600;
}

.seo-block__toggle {
  margin: 14px 0 0;
  border: none;
  padding: 8px 0;
  background: transparent;
  font-size: 16px;
  line-height: 1.2;
  font-weight: 500;
  color: var(--text-dim);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--transition-base);
}

.seo-block__toggle:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: 4px;
}

@media (hover: hover) and (pointer: fine) {
  .seo-block__toggle:hover {
    color: var(--text-primary);
  }
}

@media (max-width: 1199px) {
  .seo-block__inner {
    width: min(100%, 940px);
    border-radius: 14px;
    padding: 20px;
  }

  .seo-block__title {
    margin-bottom: 12px;
    font-size: clamp(22px, 3.2vw, 28px);
  }

  .seo-block__content {
    font-size: 15px;
  }
}

@media (max-width: 767px) {
  .seo-block__inner {
    width: 100%;
    border-radius: 12px;
    padding: 16px;
  }

  .seo-block__title {
    margin-bottom: 10px;
    font-size: 20px;
    line-height: 1.24;
  }

  .seo-block__content {
    font-size: 15px;
    line-height: 1.5;
  }

  .seo-block__content h3 {
    margin-top: 18px;
    font-size: 18px;
  }

  .seo-block__content h4 {
    margin-top: 16px;
    font-size: 16px;
  }

  .seo-block__content ul,
  .seo-block__content ol {
    padding-left: 18px;
  }

  .seo-block__toggle {
    margin-top: 12px;
    padding: 10px 0;
    font-size: 15px;
  }
}

html[data-theme="light"] .seo-block__inner {
  background:
    linear-gradient(180deg, rgba(17, 22, 28, 0.03) 0%, rgba(17, 22, 28, 0) 100%),
    #ffffff;
  border-color: rgba(16, 20, 24, 0.16);
  box-shadow: 0 8px 20px rgba(16, 20, 24, 0.08);
}

html[data-theme="light"] .seo-block__content-wrap.is-collapsed::after {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.94) 72%,
    rgba(255, 255, 255, 1) 100%
  );
}