/* v5.3: only the homepage's eight category cards. Shared v5.2 styling stays intact. */
.category-directory { padding-top: 44px; padding-bottom: 48px; }
.directory-heading { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-bottom: 25px; }
.directory-heading h2 { margin: 0; font-family: var(--serif); font-size: clamp(25px,2.1vw,31px); font-weight: 500; letter-spacing: -.45px; line-height: 1.55; }
.directory-catalog { display: inline-flex; align-items: center; gap: 13px; min-height: 44px; flex-shrink: 0; font-size: 12px; line-height: 1.6; color: var(--forest); }
.directory-catalog svg { width: 22px; height: 22px; }
.directory-catalog:hover { color: var(--rust); }
.directory-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 18px; }
.directory-link { display: flex; flex-direction: column; min-width: 0; overflow: hidden; border-radius: 8px; background: #faf7ee; box-shadow: 0 4px 15px #273b2110; color: var(--forest); }
.directory-photo { display: block; width: 100%; aspect-ratio: 355/293; overflow: hidden; background: #e5e6d7; }
.directory-photo img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.directory-link[data-category="disinfectants"] .directory-photo img { object-position: 42% center; }
.directory-link[data-category="colloids"] .directory-photo img { object-position: 60% center; }
.directory-caption { display: flex; flex: 1; align-items: center; justify-content: space-between; gap: 13px; min-height: 92px; padding: 19px 20px; }
.directory-link h3 { margin: 0; min-width: 0; color: var(--forest); font: 500 20px/1.6 var(--serif); letter-spacing: -.25px; overflow-wrap: anywhere; }
.directory-arrow { display: grid; place-items: center; flex: 0 0 37px; width: 37px; height: 37px; border: 1px solid #78927d; border-radius: 50%; color: #315941; transition: background-color .18s ease,color .18s ease; }
.directory-arrow svg { display: block; width: 21px; height: 21px; }
.directory-link:hover .directory-arrow { color: #fff; background: var(--forest); border-color: var(--forest); }
.directory-link:focus-visible { outline: 3px solid var(--rust); outline-offset: 4px; }
@media(max-width:1100px) {
  .directory-grid { gap: 14px; }
  .directory-caption { padding: 16px 13px; min-height: 88px; gap: 8px; }
  .directory-link h3 { font-size: 16px; }
  .directory-arrow { flex-basis: 30px; width: 30px; height: 30px; }
  .directory-arrow svg { width: 18px; height: 18px; }
}
@media(max-width:800px) {
  .category-directory { padding-top: 30px; padding-bottom: 35px; }
  .directory-heading { align-items: flex-start; gap: 16px; margin-bottom: 20px; }
  .directory-heading h2 { font-size: 25px; }
  .directory-grid { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 18px; }
  .directory-caption { padding: 18px; min-height: 96px; }
  .directory-link h3 { font-size: 19px; }
  .directory-arrow { flex-basis: 35px; width: 35px; height: 35px; }
}
@media(max-width:600px) {
  .directory-heading { display: block; }
  .directory-heading h2 { font-size: 25px; max-width: 100%; }
  .directory-catalog { margin-top: 4px; min-height: 36px; font-size: 11px; }
  .directory-grid { grid-template-columns: minmax(0,1fr); gap: 19px; }
  .directory-caption { padding: 17px 20px; min-height: 80px; gap: 16px; }
  .directory-link h3 { font-size: 20px; }
  .directory-arrow { flex-basis: 38px; width: 38px; height: 38px; }
}
@media(prefers-reduced-motion:reduce) {
  .category-directory *, .category-directory *::before, .category-directory *::after { transition: none; }
}