/* ============================================================
   70-blog-grid — Blog index: responsive card grid. Same visual
   family as 60-svc-grid (image + title + desc + arrow link) but
   laid out as a multi-column grid instead of alternating rows.
   ============================================================ */

.sec-70-blog-grid { background: var(--bone); }

.sec-70-blog-grid__cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: clamp(1.75rem, 1.3rem + 1.5vw, 2.5rem);
}

.sec-70-blog-grid__card {
  height: 100%;
}

.sec-70-blog-grid__link {
  display: flex;
  flex-direction: column;
  height: 100%;
  text-decoration: none;
  color: inherit;
  border-radius: var(--radius-card);
  background: var(--white);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  transition: box-shadow 400ms var(--ease-out), transform 400ms var(--ease-out);
}
.sec-70-blog-grid__link:hover,
.sec-70-blog-grid__link:focus-visible {
  box-shadow: var(--shadow-lift);
  transform: translateY(-4px);
}

.sec-70-blog-grid__media {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  isolation: isolate;
}
.sec-70-blog-grid__photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.85) contrast(1.05) brightness(0.94);
  transform: scale(1.02);
  transition: filter 600ms var(--ease-out), transform 900ms var(--ease-out);
}
.sec-70-blog-grid__link:hover .sec-70-blog-grid__photo,
.sec-70-blog-grid__link:focus-visible .sec-70-blog-grid__photo {
  filter: grayscale(0) contrast(1) brightness(1);
  transform: scale(1.06);
}

/* Imageless card variant: intentional accent panel + mark, never a broken image */
.sec-70-blog-grid__media--noimg {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, hsl(var(--accent-h) var(--accent-s) var(--accent-l)), var(--accent-strong));
}
.sec-70-blog-grid__media--noimg svg { width: 44px; height: 44px; opacity: 0.9; }

.sec-70-blog-grid__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 1.5rem;
}

.sec-70-blog-grid__date {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--accent-strong);
  margin-bottom: 0.6rem;
}

.sec-70-blog-grid__title {
  font-size: 1.2rem;
  margin-bottom: 0.6rem;
}

.sec-70-blog-grid__desc {
  color: var(--text-on-bone-dim);
  font-size: 0.94rem;
  margin-bottom: 1.25rem;
  flex: 1;
}

.sec-70-blog-grid__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--accent-strong);
  margin-top: auto;
}
.sec-70-blog-grid__cta svg { transition: transform 300ms var(--ease-spring); }
.sec-70-blog-grid__link:hover .sec-70-blog-grid__cta svg { transform: translateX(4px); }

@media (prefers-reduced-motion: reduce) {
  .sec-70-blog-grid__link,
  .sec-70-blog-grid__photo,
  .sec-70-blog-grid__cta svg {
    transition: none;
  }
}

/* Mobile readability: body copy at least 16px on phones */
@media (max-width: 700px) {
  .sec-70-blog-grid__desc { font-size: 1rem; }
}