.lesson-startup-preview { display: none; }
.site-startup-preview { display: none; }
.site-startup-active .learning-seo-shell > [data-site-original] { display: none; }
.site-startup-active .site-startup-preview { display: block; width: 100%; max-width: 940px; margin: 0 auto; padding: 20px 0 36px; }
.site-startup-topbar { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 12px; margin-bottom: 28px; }
.site-startup-topbar > div { display: flex; gap: 7px; }
.site-startup-topbar > a { justify-self: end; }
.site-startup-topbar a { text-decoration: none; display: inline-flex; align-items: center; justify-content: center; }
.site-startup-topbar > strong { color: #195c42; font-size: 22px; letter-spacing: -.5px; }
.site-startup-parent { display: block; padding: 8px 12px; border: 1px solid #d5e2df; border-radius: 8px; color: #276749; font-size: 12px; text-decoration: none; margin-bottom: 22px; }
.site-startup-title { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 18px; }
.site-startup-title h1 { font-size: 26px; line-height: 1.5; margin: 0; overflow-wrap: anywhere; }
.site-startup-status { flex-shrink: 0; font-size: 11px; color: #49675d; background: #edf6f1; border-radius: 20px; padding: 7px 10px; }
.site-startup-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 14px; }
.site-startup-card { position: relative; display: block; min-width: 0; min-height: 164px; padding: 18px; border: 1px solid #d8e2e6; border-top: 4px solid #276749; border-radius: 12px; background: #fff; color: #20323c; text-decoration: none; box-shadow: 0 2px 5px #243d3610; }
.site-startup-card:focus-visible,.site-startup-card:hover { border-color: #276749; outline: 2px solid #b7d8c7; outline-offset: 2px; }
.site-startup-mark { display: inline-flex; align-items: center; justify-content: center; min-width: 38px; height: 38px; padding: 6px; border-radius: 9px; background: #276749; color: white; font-size: 14px; }
.site-startup-card h2 { font-size: 19px; margin: 10px 20px 8px 0; line-height: 1.5; overflow-wrap: anywhere; }
.site-startup-card p { font-size: 13px; line-height: 1.7; margin: 0; color: #5f6b7a; overflow-wrap: anywhere; }
.site-startup-arrow { position: absolute; inset-inline-end: 17px; top: 22px; font-size: 24px; color: #276749; }
.site-startup-empty { grid-column: 1/-1; padding: 24px; text-align: center; border: 1px dashed #b7d8c7; border-radius: 12px; }
@media (max-width: 600px) {
  .site-startup-active .site-startup-preview { padding-top: 10px; }
  .site-startup-topbar { gap: 7px; grid-template-columns: 1fr auto; }
  .site-startup-topbar > strong { grid-column: 1/-1; grid-row: 1; text-align: center; font-size: 24px; margin-bottom: 8px; }
  .site-startup-title { flex-wrap: wrap; gap: 8px; }
  .site-startup-title h1 { font-size: 23px; }
  .site-startup-grid { grid-template-columns: 1fr; gap: 12px; }
  .site-startup-card { min-height: 140px; }
}
.lesson-startup-active .learning-seo-shell > [data-lesson-original] { display: none; }
.lesson-startup-active .lesson-startup-preview { display: block; max-width: 940px; margin: 0 auto; padding: 24px 0; }
.lesson-startup-heading { display: grid; grid-template-columns: auto minmax(0,1fr) auto; gap: 12px; align-items: center; }
.lesson-startup-heading strong { text-align: center; overflow-wrap: anywhere; }
.lesson-startup-preview progress { display: block; width: 100%; height: 8px; margin: 10px 0 22px; accent-color: #276749; }
.lesson-startup-navigation { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.lesson-startup-navigation .btn { min-width: 46px; min-height: 46px; text-decoration: none; }
.lesson-startup-navigation [aria-disabled] { opacity: .45; }
.lesson-startup-preview .lesson-content { font-size: 14pt; overflow-wrap: anywhere; }
.lesson-startup-status { font-size: 12px; opacity: .72; text-align: center; margin: 10px 0; }
.editorial-tool-status { position: fixed; inset-inline-end: 18px; bottom: 18px; z-index: 2000; padding: 12px 18px; border: 1px solid #b9d6c9; border-radius: 10px; background: #f2faf6; color: #195c42; box-shadow: 0 4px 18px #19382a18; }
@media (max-width: 600px) {
  .lesson-startup-active .lesson-startup-preview { padding: 12px 0; }
  .lesson-startup-heading { gap: 7px; font-size: 12px; }
  .lesson-startup-heading strong { display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; overflow: hidden; }
}