.library-group-search {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 52px;
  margin-bottom: 16px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: var(--surface);
}

.library-group-search input {
  width: 100%;
  border: 0;
  outline: 0;
  color: var(--text);
  background: transparent;
}

.library-group-list {
  display: grid;
  gap: 12px;
}

.library-group-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: stretch;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.library-group-open {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) auto;
  align-items: center;
  gap: 15px;
  padding: 18px;
  border: 0;
  color: var(--text);
  background: transparent;
  text-align: left;
}

.library-group-open:hover {
  background: var(--soft);
}

.library-group-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  color: var(--primary);
  background: #eef0ff;
  font-size: 16px;
  font-weight: 900;
}

[data-theme="dark"] .library-group-icon {
  background: #202a45;
}

.library-group-copy {
  min-width: 0;
}

.library-group-copy strong,
.library-group-copy small {
  display: block;
}

.library-group-copy strong {
  overflow: hidden;
  font-size: 18px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.library-group-copy small,
.library-group-stats {
  color: var(--muted);
  font-size: 12px;
}

.library-group-stats {
  text-align: right;
  white-space: nowrap;
}

.library-group-select,
.lesson-select {
  border: 1px solid var(--line);
  color: var(--muted);
  background: var(--soft);
  font-weight: 900;
}

.library-group-select {
  min-width: 82px;
  padding: 0 14px;
  border-width: 0 0 0 1px;
}

.library-group-select[aria-pressed="true"],
.lesson-select[aria-pressed="true"] {
  color: #fff;
  border-color: var(--primary);
  background: var(--primary);
}

.library-detail-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 16px;
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: 17px;
  background: var(--surface);
}

.library-detail-title {
  min-width: 0;
  flex: 1;
}

.library-detail-title strong,
.library-detail-title small {
  display: block;
}

.library-detail-title strong {
  overflow: hidden;
  font-size: 18px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.library-detail-title small {
  color: var(--muted);
}

.library-back {
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--text);
  background: var(--soft);
  font-size: 20px;
}

.library-detail .library-toolbar {
  grid-template-columns: 1fr repeat(2, 160px);
}

.library-detail #dateFilter {
  display: none;
}

.lesson-card {
  position: relative;
}

.lesson-select {
  width: 35px;
  height: 35px;
  flex: 0 0 auto;
  border-radius: 10px;
}

.library-selection-bar {
  position: sticky;
  bottom: 82px;
  z-index: 24;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: min(680px, calc(100% - 20px));
  margin: 18px auto 0;
  padding: 11px 12px 11px 16px;
  border: 1px solid #c9ceff;
  border-radius: 16px;
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  box-shadow: 0 18px 48px rgba(22, 28, 58, .22);
  backdrop-filter: blur(16px);
}

.library-selection-bar strong,
.library-selection-bar small {
  display: block;
}

.library-selection-bar small {
  color: var(--muted);
}

.library-selection-actions {
  display: flex;
  gap: 8px;
}

@media (max-width: 740px) {
  .view-library .standalone-heading {
    display: block;
    padding: 18px 0 10px;
  }

  .view-library .standalone-heading .section-kicker,
  .view-library .standalone-heading p {
    display: none;
  }

  .view-library .standalone-heading h1 {
    margin: 0;
    font-size: 28px;
  }

  .view-library #library {
    padding-top: 18px;
  }

  .view-library .library-heading p,
  .view-library .library-heading .section-kicker {
    display: none;
  }

  .view-library .library-heading {
    margin-bottom: 14px;
  }

  .view-library .library-heading h2 {
    margin: 0;
    font-size: 28px;
  }

  .library-group-search {
    margin-bottom: 12px;
    background: var(--soft);
  }

  .library-group-card {
    border-radius: 15px;
    box-shadow: none;
  }

  .library-group-open {
    grid-template-columns: 44px minmax(0, 1fr);
    padding: 14px;
  }

  .library-group-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
  }

  .library-group-stats {
    grid-column: 2;
    text-align: left;
  }

  .library-group-select {
    min-width: 66px;
    padding: 0 9px;
    font-size: 12px;
  }

  .library-detail-header {
    padding: 10px;
  }

  .library-detail-header .button {
    min-height: 38px;
    padding-inline: 10px;
    font-size: 12px;
  }

  .view-library .lesson-top {
    align-items: flex-start;
  }

  .view-library .lesson-tags {
    flex: 1;
  }

  .library-selection-bar {
    bottom: calc(78px + env(safe-area-inset-bottom));
    width: calc(100% - 10px);
    margin-top: 12px;
  }

  .library-selection-bar small {
    display: none;
  }

  .library-selection-actions .text-button {
    display: none;
  }
}