/* ═══════════════════════════════════════════════════
   KAVE — Blog Archive Page
   ═══════════════════════════════════════════════════ */

.blog-archive {
  padding: 120px 0 0;
  background: var(--color-bg-alt);
  color: var(--color-text);
}

/* ── Hero ── */
.blog-hero {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding: 0 var(--gutter) 40px;
  gap: 40px;
  border-bottom: 1px solid var(--color-line);
}

.blog-hero .head-left { max-width: 780px; }

.blog-hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(44px, 5.4vw, 82px);
  line-height: 0.98;
  font-weight: 400;
  letter-spacing: -1px;
}

.blog-hero .head-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 24px;
  padding-bottom: 10px;
  max-width: 300px;
}

.blog-hero .meta {
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.6;
  text-align: right;
}

/* ── Filter Chips ── */
.blog-filters {
  position: sticky;
  top: var(--header-h, 80px);
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px var(--gutter);
  overflow-x: auto;
  scrollbar-width: none;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-line);
  transition: padding 0.4s var(--ease), background 0.4s var(--ease);
}

.blog-filters::-webkit-scrollbar { display: none; }

.blog-filters.pinned {
  padding: 12px var(--gutter);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.blog-filters .chip {
  padding: 11px 20px;
  border: 1px solid var(--color-line);
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  color: var(--color-text);
  font-weight: 500;
  background: transparent;
  white-space: nowrap;
  cursor: pointer;
  transition: padding 0.4s var(--ease), font-size 0.4s var(--ease), background 0.5s var(--ease), color 0.5s var(--ease), border-color 0.5s var(--ease);
}

.blog-filters.pinned .chip {
  padding: 8px 16px;
  font-size: 10px;
}

.blog-filters .chip:hover { border-color: var(--color-text); }
.blog-filters .chip.active { background: var(--color-text); color: #fff; border-color: var(--color-text); }
.blog-filters .sep { width: 1px; height: 22px; background: var(--color-line); margin: 0 8px; flex-shrink: 0; transition: height 0.4s var(--ease); }
.blog-filters.pinned .sep { height: 18px; }

/* ── Featured Article (first, large) ── */
.blog-featured {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 0;
  border-bottom: 1px solid var(--color-line);
}

.blog-featured .feat-media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.blog-featured .feat-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s var(--ease);
}

.blog-featured:hover .feat-media img {
  transform: scale(1.04);
}

.blog-featured .feat-media .read-time {
  position: absolute;
  top: 22px;
  left: 22px;
  padding: 7px 12px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  font-family: var(--font-body);
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-text);
  font-weight: 500;
  z-index: 2;
}

.blog-featured .feat-info {
  padding: 48px var(--gutter);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.blog-featured .feat-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-text-muted);
  font-weight: 500;
  margin-bottom: 20px;
}

.blog-featured .feat-meta .dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.6;
}

.blog-featured .feat-title {
  font-family: var(--font-heading);
  font-size: clamp(26px, 2.8vw, 40px);
  line-height: 1.15;
  font-weight: 400;
  letter-spacing: -0.4px;
  margin-bottom: 16px;
}

.blog-featured .feat-excerpt {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: 28px;
  max-width: 440px;
}

.blog-featured .feat-cta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--color-text);
}

.blog-featured .feat-cta .arrow {
  display: block;
  width: 30px;
  height: 1px;
  background: currentColor;
  transform-origin: left;
  transition: transform 0.65s var(--ease);
}

.blog-featured:hover .feat-cta .arrow { transform: scaleX(1.4); }

/* ── Article Grid ── */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px 28px;
  padding: 60px var(--gutter) 80px;
}

.blog-card {
  text-decoration: none;
  color: inherit;
  display: block;
}

.blog-card .card-media {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: #f0f0f0;
  margin-bottom: 20px;
}

.blog-card .card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s var(--ease), filter 0.6s var(--ease);
}

.blog-card:hover .card-media img {
  transform: scale(1.05);
  filter: brightness(0.96);
}

.blog-card .card-media .read-time {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 5px 10px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  font-family: var(--font-body);
  font-size: 9px;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--color-text);
  font-weight: 500;
}

.blog-card .card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 10px;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  color: var(--color-text-muted);
  font-weight: 500;
  margin-bottom: 12px;
}

.blog-card .card-meta .dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.6;
}

.blog-card .card-title {
  font-family: var(--font-heading);
  font-size: clamp(18px, 1.6vw, 24px);
  line-height: 1.2;
  font-weight: 400;
  letter-spacing: -0.2px;
  margin-bottom: 10px;
  background-image: linear-gradient(var(--color-text), var(--color-text));
  background-size: 0 1px;
  background-repeat: no-repeat;
  background-position: 0 100%;
  transition: background-size 0.7s var(--ease);
  display: inline;
  padding-bottom: 3px;
}

.blog-card:hover .card-title { background-size: 100% 1px; }

.blog-card .card-excerpt {
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: 95%;
}

/* ═══ Responsive ═══ */
@media (max-width: 960px) {
  .blog-archive { padding: 100px 0 0; }
  .blog-featured { grid-template-columns: 1fr 1fr; }
  .blog-featured .feat-info { padding: 36px 28px; }
  .blog-grid { grid-template-columns: repeat(2, 1fr); gap: 36px 24px; padding: 48px var(--gutter) 60px; }
}

@media (max-width: 760px) {
  .blog-archive { padding: 80px 0 0; }
  .blog-hero { flex-direction: column; align-items: flex-start; gap: 20px; }
  .blog-hero .head-right { align-items: flex-start; max-width: 100%; }
  .blog-hero .meta { text-align: left; }
  .blog-hero h1 { font-size: 36px; }
  .blog-featured { grid-template-columns: 1fr; }
  .blog-featured .feat-media { aspect-ratio: 16 / 9; }
  .blog-featured .feat-info { padding: 28px var(--gutter); }
  .blog-grid { grid-template-columns: 1fr; gap: 40px; padding: 40px var(--gutter) 48px; }
}

@media (max-width: 480px) {
  .blog-hero h1 { font-size: 30px; }
  .blog-featured .feat-title { font-size: 24px; }
}

/* ── Load-more / empty / loading (Phase 3 — REST chip filtering + load-more).
   Mirrors the catalog's .arch-* rules; the prototype's single-page grid had none.
   [hidden] keeps them out of the no-JS paint until JS/needed. ── */
.blog-grid.is-loading { opacity: 0.45; pointer-events: none; }

.blog-more {
  display: flex;
  justify-content: center;
  padding: 0 var(--gutter) 100px;
}
.blog-more[hidden] { display: none; }

.blog-more-btn {
  padding: 16px 46px;
  border: 1px solid var(--color-line);
  background: transparent;
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-text);
  font-weight: 500;
  cursor: pointer;
  transition: background 0.5s var(--ease), color 0.5s var(--ease), border-color 0.5s var(--ease), opacity 0.3s var(--ease);
}
.blog-more-btn:hover { background: var(--color-text); color: #fff; border-color: var(--color-text); }
.blog-more-btn:disabled { opacity: 0.5; cursor: default; }

.blog-empty {
  padding: 30px var(--gutter) 120px;
  text-align: center;
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: 0.4px;
  color: var(--color-text-muted);
}
.blog-empty[hidden] { display: none; }

.blog-pagination { padding: 0 var(--gutter) 100px; text-align: center; }
.blog-pagination .page-numbers {
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 1px;
  padding: 8px 14px;
  margin: 0 2px;
  text-decoration: none;
  color: var(--color-text);
}
.blog-pagination .page-numbers.current { font-weight: 700; border-bottom: 1px solid var(--color-text); }