/* ==========================================================================
   IndoSpiceHub — Knowledge Center Page
   Page-specific styles. Shared components live in components.css.
   ========================================================================== */

/* Page hero, hero action row, and CTA band now live in components.css
   as shared components. This page only adds what's unique to the
   Knowledge Center. */

/* ---------- Featured Articles (large editorial preview cards) ---------- */
.featured-grid {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-5);
}
@media (min-width: 860px) {
  .featured-grid { grid-template-columns: repeat(3, 1fr); }
}

.featured-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  transition: box-shadow var(--duration-base) var(--ease-standard), transform var(--duration-base) var(--ease-standard);
}
.featured-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.featured-card__media { aspect-ratio: 4 / 3; overflow: hidden; background: var(--color-forest-100); }
.featured-card__media img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-standard);
}
.featured-card:hover .featured-card__media img { transform: scale(1.04); }
.featured-card__body { padding: var(--space-4); display: flex; flex-direction: column; flex-grow: 1; }
.featured-card__tag {
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gold-600);
  font-weight: 600;
  margin-bottom: var(--space-2);
}
.featured-card__body h3 { font-size: var(--text-h5); margin-bottom: var(--space-2); }
.featured-card__body p { color: var(--color-charcoal-60); flex-grow: 1; margin-bottom: var(--space-3); }

/* ---------- Knowledge Categories (compact icon cards) ---------- */
.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2);
  margin-top: var(--space-5);
}
@media (min-width: 640px) { .category-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1024px) { .category-grid { grid-template-columns: repeat(5, 1fr); } }
/* At the base 2-column mobile width, nine cards leave the ninth alone —
   span it full-width there. 3-column (3 rows exact) and 5-column
   (5 + 4, balanced) layouts at wider widths already resolve cleanly. */
@media (max-width: 639px) {
  .category-card:last-child:nth-child(odd) { grid-column: 1 / -1; }
}

.category-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  background: var(--color-white);
  transition: border-color var(--duration-base) var(--ease-standard), box-shadow var(--duration-base) var(--ease-standard), transform var(--duration-base) var(--ease-standard);
}
.category-card:hover { border-color: var(--color-gold-500); box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.category-card__icon {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border: 1px solid var(--color-gold-500);
  color: var(--color-gold-600);
  border-radius: 50%;
}
.category-card__icon svg { width: 20px; height: 20px; }
.category-card span {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-charcoal);
}

/* ---------- Latest Articles (professional article grid) ---------- */
.article-grid {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-5);
}
@media (min-width: 640px) { .article-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .article-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 640px) and (max-width: 1023px) {
  .article-card:last-child:nth-child(odd) { grid-column: 1 / -1; }
}

.article-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  transition: box-shadow var(--duration-base) var(--ease-standard), transform var(--duration-base) var(--ease-standard);
}
.article-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.article-card__media { aspect-ratio: 3 / 2; overflow: hidden; background: var(--color-forest-100); }
.article-card__media img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-standard);
}
.article-card:hover .article-card__media img { transform: scale(1.04); }
.article-card__body { padding: var(--space-3) var(--space-4) var(--space-4); display: flex; flex-direction: column; flex-grow: 1; }
.article-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}
.article-card__meta .tag { color: var(--color-gold-600); font-weight: 600; }
.article-card__meta .time { color: var(--color-charcoal-60); text-transform: none; letter-spacing: normal; display: inline-flex; align-items: center; gap: 0.3rem; }
.article-card__meta .time svg { width: 13px; height: 13px; }
.article-card__body h3 { font-size: var(--text-h6); font-family: var(--font-body); font-weight: 600; margin-bottom: var(--space-2); }
.article-card__body p { color: var(--color-charcoal-60); font-size: 0.9375rem; flex-grow: 1; margin-bottom: var(--space-3); }

/* ---------- Export Resources (built on the shared .feature-row component,
   turned into a link) ---------- */
.resource-list { border-top: 1px solid var(--color-border); margin-top: var(--space-5); }
a.feature-row {
  align-items: center;
  justify-content: space-between;
  text-decoration: none;
  color: inherit;
  transition: background var(--duration-fast) var(--ease-standard);
}
a.feature-row:hover { background: var(--color-forest-100); }
.feature-row__text { flex-grow: 1; }
.feature-row__arrow {
  flex-shrink: 0;
  color: var(--color-gold-600);
  transition: transform var(--duration-fast) var(--ease-standard);
}
a.feature-row:hover .feature-row__arrow { transform: translateX(3px); }

/* ---------- Newsletter / Stay Updated (minimal, no marketing) ---------- */
.newsletter {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.newsletter__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}
.newsletter__inner h2 { font-size: var(--text-h4); margin-bottom: var(--space-1); }
.newsletter__inner p { color: var(--color-charcoal-60); }
.newsletter__form {
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--color-charcoal);
  flex: 1 1 280px;
  min-width: 0;
}
.newsletter__form:focus-within {
  border-bottom-color: var(--color-forest-700);
  box-shadow: 0 1px 0 0 var(--color-forest-700);
}
.newsletter__form input {
  flex-grow: 1;
  min-width: 0;
  border: none;
  background: transparent;
  padding: 0.6rem 0;
  font-family: var(--font-body);
  font-size: var(--text-body);
  color: var(--color-charcoal);
}
.newsletter__form input:focus { outline: none; }
.newsletter__form input::placeholder { color: var(--color-charcoal-60); }
.newsletter__submit {
  display: grid;
  place-items: center;
  width: 32px; height: 32px;
  flex-shrink: 0;
  color: var(--color-gold-600);
  background: none;
  border: none;
  cursor: pointer;
  transition: transform var(--duration-fast) var(--ease-standard);
}
.newsletter__submit:hover { transform: translateX(3px); }
.newsletter__submit svg { width: 20px; height: 20px; }