/* Blog listing page. Builds on page-hero, media, u-line and cta-banner from components.css. */

/* ---------- Hero ---------- */
.blog-hero { align-items: flex-end; padding-bottom: clamp(48px, 5.2vw, 100px); }
.blog-hero__inner { position: relative; display: grid; gap: 20px; max-width: 750px; }
.blog-hero__aside { display: grid; gap: 32px; }
.blog-hero__aside p { font-size: var(--fs-lead); line-height: 1.4; }
.blog-hero [data-hero-step] { animation: rise 800ms var(--ease) both; animation-delay: calc(var(--i, 0) * 120ms + 100ms); }

/* ---------- Posts ---------- */
.blog { padding-top: clamp(56px, 5.2vw, 100px); }

.blog__head {
  display: grid;
  gap: 32px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
}
.blog__title {
  font-size: clamp(1.5rem, 1.2rem + 0.9vw, 2rem); /* 32 */
  line-height: 1.25;
  font-weight: 600;
}
.blog__filters { display: flex; flex-wrap: wrap; gap: 8px; }

.chip {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 7px 15px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--white);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.875rem;
  line-height: 20px;
  text-transform: uppercase;
  color: var(--navy);
  transition: background-color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
button.chip:hover { border-color: var(--teal); color: var(--teal); }
.chip.is-active,
button.chip.is-active:hover { border-color: var(--teal); background: var(--teal); color: var(--white); }
.chip--static { justify-self: start; }

.blog__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 40px 24px;
  margin-top: 40px;
}

.post-card { display: grid; gap: 32px; align-content: start; }
.post-card[hidden] { display: none; }
.post-card.is-entering { animation: rise 500ms var(--ease) both; animation-delay: var(--enter-delay, 0ms); }
.post-card .media { aspect-ratio: 492 / 328; }
.post-card:hover .media img { transform: scale(1.05); }
.post-card__body { display: grid; gap: 16px; }
.post-card__title {
  font-size: var(--fs-h3);
  line-height: 1.33;
  letter-spacing: -0.03em;
  text-transform: none;
}
.post-card:is(:hover, :focus-within) .u-line { background-size: 100% 2px; }
/* Linked cards: the title link covers the whole card */
.post-card:has(.post-card__link) { position: relative; }
.post-card__link::after { content: ""; position: absolute; inset: 0; }
.post-card__link:focus-visible { outline: none; }
.post-card:has(.post-card__link:focus-visible) { outline: 3px solid var(--teal); outline-offset: 6px; border-radius: var(--radius-md); }
.post-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 16px;
  font-size: var(--fs-body);
  line-height: 24px;
  color: var(--text-muted);
}
.post-card__dot { width: 4px; height: 4px; border-radius: 50%; background: currentColor; }

@media (max-width: 1023px) {
  .blog__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 639px) {
  .blog__grid { grid-template-columns: minmax(0, 1fr); gap: 64px; }
  .blog__head { gap: 24px; padding-bottom: 32px; }
  .blog__grid { margin-top: 32px; }
  /* Tight inside a card (image > title > meta), generous between cards */
  .post-card { gap: 16px; }
  .post-card__body { gap: 8px; }
}

/* Mobile: topic filters become one horizontal swipe row (stays one line tall however many topics there are) */
@media (max-width: 767px) {
  .blog__filters {
    flex-wrap: nowrap;
    overflow-x: auto;
    margin-inline: calc(-1 * var(--gutter));
    padding: 4px var(--gutter);
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .blog__filters::-webkit-scrollbar { display: none; }
  .blog__filters .chip { flex: none; white-space: nowrap; }
}