/* Platform seller hubs (Amazon / Shopify / TikTok Shop) */

.ck-hub-hero .container {
  display: block;
  max-width: 760px;
  margin: 0 auto;
}
.ck-hub-hero { padding: 56px 0 64px; }
.ck-hub-crumbs { margin: 0 0 22px; padding: 0; background: transparent; }
.ck-hub-hero .ck-eyebrow { margin-bottom: 16px; }
.ck-hub-hero .ck-h1 { margin-bottom: 18px; }
.ck-hub-hero .ck-hero-link {
  display: inline-flex; align-items: center; font-weight: 600;
  color: var(--brand); text-decoration: none;
}
.ck-hub-hero .ck-hero-link:hover { text-decoration: underline; }

.ck-hub-groups { padding-top: 24px; }
.ck-hub-group {
  background: var(--bg-primary); border: 1px solid var(--border-color);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-card);
  padding: 28px 26px; margin-bottom: 22px;
}
.ck-hub-group h2 {
  font-size: var(--fs-h3); font-weight: var(--fw-semibold); color: var(--text-primary);
  margin: 0 0 8px; letter-spacing: -0.01em;
}
.ck-hub-group > p {
  color: var(--text-secondary); margin: 0 0 16px; font-size: var(--fs-body); line-height: 1.7;
}
.ck-hub-toolgrid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px;
}
.ck-hub-tool {
  display: block; text-decoration: none;
  border: 1px solid var(--border-light); border-radius: var(--radius-md);
  background: var(--bg-secondary); padding: 16px 18px;
  transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease;
}
.ck-hub-tool:hover {
  border-color: var(--brand); box-shadow: var(--shadow-sm); transform: translateY(-2px);
}
.ck-hub-tool h3 {
  margin: 0 0 6px; font-size: var(--fs-body); font-weight: var(--fw-semibold);
  color: var(--text-primary);
}
.ck-hub-tool p {
  margin: 0; font-size: var(--fs-sm); color: var(--text-secondary); line-height: 1.55;
}

.ck-hub-why .container { max-width: 720px; }
.ck-hub-why .ck-section-title { text-align: left; margin-bottom: 16px; }
.ck-hub-why p {
  color: var(--text-secondary); font-size: var(--fs-lead); line-height: 1.7; margin: 0 0 14px;
}
.ck-hub-why p:last-child { margin-bottom: 0; }

.ck-hub-more-title { text-align: center; margin-bottom: 28px; }
.ck-hub-siblings {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; max-width: 860px; margin: 0 auto;
}
.ck-hub-sibling {
  display: block; text-decoration: none;
  background: var(--bg-primary); border: 1px solid var(--border-color);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-card);
  padding: 24px 22px; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.ck-hub-sibling:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--brand); }
.ck-hub-sib-ico { font-size: 22px; color: var(--brand); display: inline-block; margin-bottom: 10px; }
.ck-hub-sibling h3 {
  margin: 0 0 8px; font-size: var(--fs-h3); color: var(--text-primary); font-weight: var(--fw-semibold);
}
.ck-hub-sibling p { margin: 0; color: var(--text-secondary); font-size: var(--fs-sm); line-height: 1.55; }

@media (max-width: 760px) {
  .ck-hub-toolgrid,
  .ck-hub-siblings { grid-template-columns: 1fr; }
}