/* ═══════════════════════════════════════
   BLOG / INSIGHTS PAGE
═══════════════════════════════════════ */

/* ── Tags, dates ── */
.blog-tag {
  font-family: var(--font-mono);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--color-green);
  border: 1px solid var(--color-border-green);
  padding: 3px var(--space-2);
  border-radius: 2px;
}
.blog-date {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--color-white-muted);
  letter-spacing: .05em;
}
.blog-read {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--color-white-muted);
}
.blog-meta-sep {
  color: var(--color-border);
  font-size: var(--text-sm);
}

/* ── Author ── */
.blog-author-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  filter: grayscale(30%);
}
.blog-author-avatar--sm {
  width: 24px;
  height: 24px;
}
.blog-author-name {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--weight-semi);
  color: var(--color-white);
}
.blog-author-role {
  display: block;
  font-family: var(--font-mono);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--color-white-muted);
}

/* ── Featured article ── */
.blog-featured {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: border-color var(--duration-normal);
  text-decoration: none;
}
.blog-featured:hover { border-color: var(--color-border-green); }

.blog-featured__img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
}
.blog-featured__img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: grayscale(20%) brightness(0.75);
  transition: transform var(--duration-slow) var(--ease-out), filter var(--duration-slow);
}
.blog-featured:hover .blog-featured__img {
  transform: scale(1.04);
  filter: grayscale(0%) brightness(0.85);
}

.blog-featured__body {
  padding: var(--space-12);
  background: var(--color-bg-secondary);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--space-6);
}
.blog-featured__meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}
.blog-featured__title {
  font-size: clamp(var(--text-xl), 2.5vw, var(--text-3xl));
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -.02em;
  line-height: 1.2;
}
.blog-featured__excerpt {
  font-size: var(--text-base);
  color: var(--color-white-dim);
  line-height: 1.7;
}
.blog-featured__author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}

/* ── Filter ── */
.blog-filter {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-10);
}
.blog-filter__btn {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-white-muted);
  background: transparent;
  cursor: pointer;
  transition: all var(--duration-fast);
}
.blog-filter__btn:hover {
  color: var(--color-white);
  border-color: rgba(255,255,255,0.2);
}
.blog-filter__btn.is-active {
  color: var(--color-bg);
  background: var(--color-green);
  border-color: var(--color-green);
}

/* ── Blog grid ── */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin-bottom: var(--space-12);
}

.blog-card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: border-color var(--duration-normal);
  text-decoration: none;
  display: flex;
  flex-direction: column;
}
.blog-card:hover { border-color: var(--color-border-green); }

.blog-card__img-wrap {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
}
.blog-card__img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(8,8,8,0.88) 0%, transparent 60%);
  pointer-events: none;
}
.blog-card__cat {
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
  z-index: 1;
  font-family: var(--font-mono);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--color-bg);
  background: var(--color-green);
  padding: 3px var(--space-2);
  border-radius: 2px;
}
.blog-card__read {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--color-green);
  margin-top: auto;
}
.blog-card__read svg {
  width: 11px;
  height: 11px;
  transition: transform var(--duration-normal) var(--ease-out);
}
.blog-card:hover .blog-card__read svg { transform: translateX(4px); }
.blog-card--featured { grid-column: span 2; }
.blog-card--featured .blog-card__title { font-size: var(--text-xl); }
.blog-card__img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: grayscale(20%) brightness(0.75);
  transition: transform var(--duration-slow) var(--ease-out), filter var(--duration-slow);
}
.blog-card:hover .blog-card__img {
  transform: scale(1.05);
  filter: grayscale(0%) brightness(0.85);
}

.blog-card__body {
  padding: var(--space-6);
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.blog-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.blog-card__title {
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--color-white);
  line-height: 1.3;
  flex: 1;
}
.blog-card:hover .blog-card__title { color: var(--color-white); }
.blog-card__excerpt {
  font-size: var(--text-sm);
  color: var(--color-white-muted);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.blog-card--featured .blog-card__excerpt {
  -webkit-line-clamp: 4;
}
.blog-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  margin-top: auto;
}
.blog-card__author {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-white-muted);
}

/* ── Infinite scroll ── */
.blog-infinite {
  margin-top: var(--space-8);
  min-height: 48px;
}
.blog-infinite__sentinel {
  height: 1px;
  width: 100%;
}
.blog-infinite__sentinel.is-loading + .blog-infinite__status::before {
  content: '';
  display: inline-block;
  width: 14px;
  height: 14px;
  margin-right: var(--space-2);
  border: 2px solid var(--color-border);
  border-top-color: var(--color-green);
  border-radius: 50%;
  vertical-align: -2px;
  animation: blogSpin .7s linear infinite;
}
@keyframes blogSpin { to { transform: rotate(360deg); } }
.blog-infinite__status,
.blog-infinite__end {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--color-white-muted);
  padding: var(--space-4) 0;
}
.blog-empty {
  text-align: center;
  color: var(--color-white-muted);
  padding: var(--space-16) 0;
}

/* ── Newsletter ── */
.blog-newsletter {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}
.blog-newsletter__title {
  font-size: clamp(var(--text-2xl), 3vw, var(--text-4xl));
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -.02em;
  margin-bottom: var(--space-4);
}
.blog-newsletter__title em { font-style: normal; color: var(--color-green); }
.blog-newsletter__sub {
  font-size: var(--text-base);
  color: var(--color-white-muted);
  line-height: 1.65;
}
.blog-newsletter__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .blog-featured { grid-template-columns: 1fr; }
  .blog-featured__img-wrap { aspect-ratio: 16/7; }
  .blog-grid { grid-template-columns: 1fr 1fr; }
  .blog-card--featured { grid-column: span 2; }
  .blog-newsletter { grid-template-columns: 1fr; gap: var(--space-10); }
}

@media (max-width: 768px) {
  .blog-featured { grid-template-columns: 1fr; }
  .blog-featured__img-wrap { aspect-ratio: 16/8; }
  .blog-featured__body { padding: var(--space-8); }

  .blog-filter {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: var(--space-2);
    scrollbar-width: none;
  }
  .blog-filter::-webkit-scrollbar { display: none; }
  .blog-filter__btn {
    flex-shrink: 0;
    min-height: 44px;
  }

  .blog-newsletter__form .form-input,
  .blog-newsletter__form .btn { width: 100%; }
}

@media (max-width: 640px) {
  .blog-grid { grid-template-columns: 1fr; }
  .blog-card--featured { grid-column: span 1; }
  .blog-featured__body { padding: var(--space-6); gap: var(--space-4); }
  .blog-featured__title { font-size: var(--text-xl); }
  .blog-featured__excerpt { display: none; }

  .blog-card__body { padding: var(--space-5); }
}