.case-library-page [hidden] { display: none !important; }
.case-library-page main .container { max-width: 1180px; }
.library-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.library-hero {
  padding: 9.5rem 0 2.4rem;
  border-bottom: 0;
  text-align: center;
  background: radial-gradient(ellipse at 50% 5%, var(--accent-subtle), transparent 65%);
}
.library-eyebrow {
  display: block;
  margin-bottom: 1.1rem;
  color: var(--primary-color);
  font-family: 'JetBrains Mono', monospace;
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .13em;
  text-transform: uppercase;
}
.library-hero h1 {
  margin: 0 0 1rem;
  color: var(--text-primary);
}
.library-hero > .container > p {
  margin: 0 auto;
  max-width: 650px;
  color: var(--text-secondary);
  font-size: var(--page-hero-description-size);
  line-height: 1.7;
}
.library-search { max-width: 690px; margin: 2.1rem auto 0; }
.library-search-field {
  display: flex;
  align-items: center;
  gap: .9rem;
  min-height: 62px;
  padding: 0 .65rem 0 1.2rem;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--bg-card);
}
.library-search-field:focus-within {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px var(--accent-strong);
}
.library-search-field > svg { flex-shrink: 0; width: 22px; height: 22px; color: var(--primary-color); }
.library-search input {
  width: 100%;
  min-width: 0;
  padding: 1rem 0;
  border: 0;
  border-radius: 0;
  outline: none;
  background: transparent;
  color: var(--text-primary);
  font: inherit;
  font-size: 1rem;
  box-shadow: none;
  -webkit-appearance: none;
  appearance: none;
}
.library-search input::placeholder { color: var(--text-muted); opacity: 1; }
.library-search input::-webkit-search-cancel-button { -webkit-appearance: none; }
.library-clear {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
}
.library-clear svg { width: 20px; height: 20px; }
.library-clear:hover { background: var(--bg-card-hover); color: var(--text-primary); }
.library-search-hint { margin: .75rem 0 0; color: var(--text-muted); font-size: .76rem; }

.library-results { padding: 0 0 5rem; }
.library-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .55rem;
  padding-bottom: 2.75rem;
}
.library-filter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .65rem;
  min-height: 44px;
  padding: .6rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 7px;
  background: transparent;
  color: var(--text-secondary);
  font: inherit;
  font-size: .8rem;
  cursor: pointer;
  transition: background .15s, border-color .15s, color .15s;
}
.library-filter:hover { border-color: var(--border-emphasis); color: var(--text-primary); background: var(--bg-card-hover); }
.library-filter[aria-pressed="true"] { border-color: var(--primary-color); background: var(--accent-tint); color: var(--primary-color); }
.library-filter-count { font-family: 'JetBrains Mono', monospace; font-size: .7rem; opacity: .8; }
.library-results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.6rem;
  margin-bottom: 1.2rem;
  border-top: 1px solid var(--border-color);
}
.library-results-header h2 { margin: 0; color: var(--text-primary); font-size: 1rem; font-weight: 500; letter-spacing: -.01em; }
.library-results-actions { display: flex; align-items: center; gap: 1rem; }
.library-result-count { margin: 0; color: var(--text-secondary); font-size: .78rem; }
.library-reset {
  padding: .5rem 0;
  border: 0;
  background: none;
  color: var(--primary-color);
  font: inherit;
  font-size: .78rem;
  text-decoration: underline;
  text-underline-offset: 4px;
  cursor: pointer;
}
.library-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.2rem; }
.case-library-page .library-card {
  min-width: 0;
  padding: 1.8rem;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--bg-card);
  color: var(--text-primary);
  gap: 0;
  box-shadow: none;
  transition: border-color .15s, background .15s;
}
.case-library-page .library-card:hover {
  transform: none;
  border-color: var(--border-emphasis);
  background: var(--bg-card-hover);
  box-shadow: none;
}
.library-card-tags { display: flex; flex-wrap: wrap; gap: .45rem; margin-bottom: 1.15rem; }
.library-card-tags span {
  padding: .25rem .5rem;
  border: 1px solid var(--border-emphasis);
  border-radius: 4px;
  color: var(--text-secondary);
  font-size: .67rem;
  line-height: 1.4;
}
.case-library-page .library-card h3 { margin: 0 0 .65rem; font-size: 1.28rem; font-weight: 500; line-height: 1.4; letter-spacing: -.025em; }
.case-library-page .library-card h3 a { color: var(--text-primary); text-decoration: none; }
.case-library-page .library-card h3 a:hover { color: var(--primary-color); }
.library-card-question { margin: 0 0 1.4rem; color: var(--text-secondary); font-size: .88rem; line-height: 1.7; }
.library-card-finding { margin-top: auto; padding: 0 0 0 .8rem; border-left: 2px solid var(--accent-border); }
.library-card-finding > span { display: block; margin-bottom: .3rem; color: var(--primary-color); font-size: .63rem; letter-spacing: .09em; text-transform: uppercase; }
.library-card-finding p { margin: 0; color: var(--text-secondary); font-size: .84rem; line-height: 1.65; }
.library-card-footer { display: flex; align-items: center; justify-content: space-between; gap: .7rem; padding-top: 1.15rem; margin-top: 1.4rem; border-top: 1px solid var(--border-color); }
.library-card-link { display: inline-flex; align-items: center; gap: .6rem; min-height: 32px; color: var(--primary-color); font-size: .8rem; font-weight: 500; text-decoration: none; }
.library-card-link:hover { color: var(--primary-dark); text-decoration: underline; text-underline-offset: 4px; }
.library-card-link span { font-size: 1.05rem; }
.library-card-footer > span { color: var(--text-muted); font-size: .71rem; white-space: nowrap; }
.library-empty { padding: 4rem 1rem; text-align: center; border: 1px dashed var(--border-emphasis); border-radius: 10px; }
.library-empty h3 { margin: 0 0 .65rem; color: var(--text-primary); font-size: 1.3rem; font-weight: 500; }
.library-empty p { color: var(--text-secondary); font-size: .9rem; }
.library-show-all { margin-top: 1.25rem; padding: .75rem 1rem; border: 1px solid var(--primary-color); border-radius: 6px; background: var(--accent-tint); color: var(--primary-color); font: inherit; font-size: .85rem; cursor: pointer; }
.case-library-page :is(.library-filter, .library-clear, .library-reset, .library-show-all, .library-card a):focus-visible { outline: 2px solid var(--primary-color); outline-offset: 4px; }

@media (max-width: 700px) {
  .library-hero { padding: 7.5rem 0 1.75rem; }
  .library-desktop-break { display: none; }
  .library-search { margin-top: 1.7rem; }
  .library-search-field { gap: .65rem; padding-left: .8rem; min-height: 58px; }
  .library-search input { font-size: 16px; }
  .library-search-hint { font-size: .71rem; }
  .library-filters { gap: .5rem; justify-content: flex-start; padding-bottom: 1.7rem; }
  .library-filter { padding: .55rem .7rem; font-size: .75rem; gap: .5rem; }
  .library-grid { grid-template-columns: minmax(0, 1fr); gap: 1rem; }
  .case-library-page .library-card { padding: 1.4rem; }
  .library-results-header { flex-wrap: wrap; gap: .7rem; padding-top: 1.2rem; }
  .library-results-actions { flex-wrap: wrap; gap: .7rem; }
  .library-results { padding-bottom: 3rem; }
}
@media (prefers-reduced-motion: reduce) {
  .case-library-page :is(.library-card, .library-filter) { transition: none; }
}