.library-page { margin: 0; min-width: 320px; background: #f7f8fa; color: #20232b; font-family: Arial, sans-serif; letter-spacing: 0; }
.library-page * { box-sizing: border-box; }
.library-account { display: flex; align-items: center; gap: 20px; }
.library-main { max-width: 1240px; margin: 44px auto; padding: 0 28px; }
.library-heading { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-bottom: 28px; }
.library-heading h1 { margin: 0; font-size: 32px; line-height: 1.2; }
.activity-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.activity-card { display: flex; flex-direction: column; min-width: 0; border: 1px solid #d9dde5; border-radius: 8px; overflow: hidden; background: #fff; --topic-color: #2468bd; }
.activity-card.immune { --topic-color: #236f62; }.activity-card.dna { --topic-color: #923b60; }
.activity-image-link { display: block; border-bottom: 1px solid #e3e7ed; background: #f5f7fa; }
.activity-image { display: block; width: 100%; aspect-ratio: 16 / 10; object-fit: contain; }
.activity-body { display: flex; flex: 1; flex-direction: column; padding: 22px; border-top: 3px solid var(--topic-color); }
.activity-body h2 { margin: 0 0 12px; font-size: 23px; line-height: 1.3; min-height: 60px; }
.activity-body h2 a { color: #20232b; text-decoration: none; }
.activity-body p { margin: 0 0 24px; color: #626d7a; font-size: 14px; line-height: 1.6; }
.activity-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: auto; }
.activity-open { display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 42px; padding: 10px 16px; border-radius: 5px; background: var(--topic-color); color: white; text-decoration: none; font-weight: 700; font-size: 14px; }
.activity-open img { width: 18px; height: 18px; filter: invert(1); }
.activity-card a:hover { text-decoration: underline; }
.activity-card a:focus-visible, .library-page button:focus-visible, .library-page summary:focus-visible { outline: 3px solid #779dc8; outline-offset: 3px; }
.activity-actions .report-icon-button { width: 42px; height: 42px; }
.copy-status { min-height: 24px; margin: 20px 0 0; color: #256351; font-size: 14px; line-height: 1.5; }
#copyFallback { margin-top: 16px; }#copyFallback[hidden] { display: none; }
#copyFallback label { display: block; margin-bottom: 8px; font-size: 13px; }
#shareAddress { width: min(650px, 100%); padding: 12px; border: 1px solid #9eabb9; border-radius: 5px; font: inherit; font-size: 14px; }
@media (max-width: 980px) { .activity-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 650px) {
  .library-main { margin-top: 28px; padding: 0 18px; }
  .library-heading { flex-wrap: wrap; gap: 18px; margin-bottom: 24px; }
  .library-heading h1 { font-size: 28px; }
  .activity-grid { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .activity-image { aspect-ratio: 16 / 8; }
  .activity-body { padding: 20px; }.activity-body h2 { min-height: 0; font-size: 22px; }
  .library-account { gap: 12px; }
}