/* ═══════════════════════════════════════════════════════════════════════
   SENSORIUM AGENCY — blog.css
   Intelligence Hub / Blog listing page. Requires base.css.
   ═══════════════════════════════════════════════════════════════════════ */


/* ── BLOG HERO ───────────────────────────────────────────────────────── */
.blog-hero {
  position: relative;
  min-height: 56vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background: linear-gradient(
    150deg,
    rgba(13,40,64,1) 0%,
    rgba(21,60,95,.95) 60%,
    rgba(56,182,255,.15) 100%
  ),
  url('../images/Section/Insight-720-700x395.webp') center/cover no-repeat;
  color: var(--clr-white);
  overflow: hidden;
}

.blog-hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 50%, rgba(244,125,85,.08) 0%, transparent 60%),
              radial-gradient(circle at 80% 20%, rgba(56,182,255,.08) 0%, transparent 50%);
  z-index: 0;
}

.blog-hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  padding: 5rem var(--container-pad) 2.5rem;
  margin-inline: auto;
  width: 100%;
  text-align: center;
}

.blog-hero-content h1 {
  color: var(--clr-white);
  font-size: clamp(2.0rem, 4vw, 3.0rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -.02em;
  margin-bottom: 1.25rem;
}
.blog-hero-content h1 em { font-style: normal; color: var(--clr-white); }

.blog-hero-content p {
  color: rgba(255,255,255,.78);
  font-size: clamp(.9rem, 1.7vw, 1.05rem);
  max-width: 660px;
  margin: 0 auto 2rem;
  line-height: 1.65;
}

/* Hero search */
.blog-hero-search { max-width: 580px; margin-inline: auto; }

.blog-search-wrap {
  position: relative;
  display: flex;
  align-items: center;
  background: rgba(255,255,255,.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: var(--radius-pill);
  padding: .25rem .25rem .25rem 1.1rem;
  transition: border-color var(--transition), background var(--transition);
}

.blog-search-wrap:focus-within {
  border-color: rgba(255,255,255,.5);
  background: rgba(255,255,255,.15);
}

.blog-search-wrap > i {
  color: rgba(255,255,255,.5);
  font-size: .85rem;
  flex-shrink: 0;
  margin-right: .6rem;
}

.blog-search-wrap input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--clr-white);
  font-size: var(--fs-sm);
  font-family: var(--font-body);
  padding: .65rem 0;
}
.blog-search-wrap input::placeholder { color: rgba(255,255,255,.5); }

.blog-search-clear {
  flex-shrink: 0;
  width: 34px; height: 34px;
  border-radius: 50%;
  background: rgba(255,255,255,.12);
  color: rgba(255,255,255,.7);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .8rem;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  font-family: var(--font-body);
}
.blog-search-clear:hover { background: var(--clr-coral); color: var(--clr-white); }

/* sr-only */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

@media (max-width: 575px) {
  .blog-hero { min-height: 65svh; }
  .blog-hero-content { padding: 4rem 1rem 2rem; }
}


/* ── FEATURED ARTICLE ────────────────────────────────────────────────── */
.featured-section {
  background: var(--clr-surface);
  padding: 4rem 0;
  margin-top: 0;
}

.featured-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  background: var(--clr-white);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition);
}
.featured-card:hover { box-shadow: var(--shadow-md); }

.featured-img {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--clr-surface-2);
}

.featured-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .45s ease;
}
.featured-card:hover .featured-img img { transform: scale(1.03); }

.featured-tag {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: var(--clr-coral);
  color: var(--clr-white);
  font-size: .7rem;
  font-weight: 700;
  padding: .25rem .75rem;
  border-radius: var(--radius-pill);
  text-transform: uppercase;
  letter-spacing: .07em;
}

.featured-body {
  padding: 2rem 2rem 2rem 0;
}

.featured-body h2 {
  font-size: clamp(1.3rem, 2.5vw, 1.75rem);
  margin-bottom: 1rem;
  line-height: 1.25;
}

.featured-body p {
  color: var(--clr-text-muted);
  line-height: 1.7;
  font-size: var(--fs-base);
  margin-bottom: 1.25rem;
}

.featured-stats {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem .85rem;
  margin-bottom: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--clr-border);
}

.featured-stats span {
  display: flex;
  align-items: center;
  gap: .35rem;
  font-size: var(--fs-xs);
  color: var(--clr-text-muted);
  font-weight: 500;
}
.featured-stats i { color: var(--clr-coral); font-size: .75rem; }

@media (max-width: 768px) {
  .featured-card { grid-template-columns: 1fr; }
  .featured-img  { aspect-ratio: 16/9; }
  .featured-body { padding: 1.5rem; }
}


/* ── ARCHIVE SECTION ─────────────────────────────────────────────────── */
.archive-section { background: var(--clr-white); padding: 4rem 0 5rem; }

.archive-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.archive-sub {
  font-size: var(--fs-sm);
  color: var(--clr-text-muted);
  font-weight: 500;
  letter-spacing: .06em;
}

/* Category tabs */
.cat-tabs {
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--clr-border);
}

.cat-tab {
  padding: .5rem 1.25rem;
  border-radius: var(--radius-pill);
  font-size: var(--fs-sm);
  font-weight: 500;
  font-family: var(--font-body);
  cursor: pointer;
  border: 1.5px solid var(--clr-border);
  background: transparent;
  color: var(--clr-text-muted);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.cat-tab:hover {
  border-color: var(--clr-navy);
  color: var(--clr-navy);
}

.cat-tab.active {
  background: var(--clr-navy);
  border-color: var(--clr-navy);
  color: var(--clr-white);
}

/* Result count */
.blog-result-count {
  font-size: var(--fs-sm);
  color: var(--clr-text-muted);
  margin-bottom: 1.5rem;
}
.blog-result-count strong { color: var(--clr-navy); }

/* Article grid */
.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

/* ── ARTICLE CARD ─────────────────────────────────────────────────────── */
.article-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}

.article-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: var(--clr-sky);
}

.article-card.hidden { display: none; }

.article-card-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  color: inherit;
}

.article-img-wrap {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--clr-surface-2);
  flex-shrink: 0;
}

.article-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.article-card:hover .article-img-wrap img { transform: scale(1.04); }

.article-tag-pill {
  position: absolute;
  top: .75rem;
  left: .75rem;
  font-size: .68rem;
  font-weight: 700;
  padding: .22rem .75rem;
  border-radius: var(--radius-pill);
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--clr-white);
}
.article-tag-pill.strategy { background: var(--clr-navy); }
.article-tag-pill.data     { background: var(--clr-sky); }
.article-tag-pill.events   { background: var(--clr-coral); }
.article-tag-pill.career   { background: var(--clr-emerald); }

.article-card-body {
  padding: 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.article-meta-row {
  display: flex;
  gap: .65rem;
  flex-wrap: wrap;
  margin-bottom: .75rem;
}

.meta-cat, .meta-read, .meta-date {
  display: flex;
  align-items: center;
  gap: .3rem;
  font-size: .72rem;
  font-weight: 600;
  color: var(--clr-text-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
}
.meta-cat i { color: var(--clr-coral); font-size: .7rem; }
.meta-read i { color: var(--clr-sky); font-size: .7rem; }

.article-card-body h3 {
  font-size: .98rem;
  color: var(--clr-navy);
  margin-bottom: .6rem;
  line-height: 1.35;
  flex-shrink: 0;
}

.article-card-body p {
  font-size: var(--fs-sm);
  color: var(--clr-text-muted);
  line-height: 1.6;
  margin-bottom: 1rem;
  flex: 1;
  /* Clamp to 3 lines */
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-cta-link {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  font-size: .8rem;
  font-weight: 700;
  color: var(--clr-coral);
  text-transform: uppercase;
  letter-spacing: .07em;
  margin-top: auto;
  transition: gap var(--transition);
}
.article-card:hover .article-cta-link { gap: .6rem; }

/* No-results */
.blog-no-results {
  grid-column: 1 / -1;
  text-align: center;
  padding: 4rem 1.5rem;
  color: var(--clr-text-muted);
}
.blog-no-results i { font-size: 2.5rem; color: var(--clr-border); margin-bottom: .75rem; display: block; }
.blog-no-results h3 { color: var(--clr-navy); margin-bottom: .5rem; }
.blog-no-results p  { font-size: var(--fs-sm); }

.inline-clear-btn {
  background: none;
  border: none;
  color: var(--clr-coral);
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: inherit;
  text-decoration: underline;
  padding: 0;
}

@media (max-width: 575px) {
  .article-grid { grid-template-columns: 1fr; }
  .cat-tabs     { gap: .35rem; }
  .cat-tab      { padding: .45rem .9rem; font-size: .8rem; }
}


/* ── NEWSLETTER SECTION ──────────────────────────────────────────────── */
.newsletter-section {
  background: var(--clr-surface);
  padding: 4rem 0 5rem;
}

.newsletter-card {
  display: flex;
  align-items: center;
  gap: 3rem;
  background: linear-gradient(120deg, var(--clr-navy-deep) 0%, var(--clr-navy) 100%);
  border-radius: var(--radius-lg);
  padding: 3rem;
  flex-wrap: wrap;
}

.newsletter-icon {
  font-size: 2.5rem;
  color: var(--clr-coral);
  display: block;
  margin-bottom: .75rem;
}

.newsletter-text { flex: 1; min-width: 260px; }
.newsletter-text h2 { color: var(--clr-white); margin-bottom: .5rem; font-size: clamp(1.3rem, 3vw, 1.75rem); }
.newsletter-text p  { color: rgba(255,255,255,.7); font-size: var(--fs-sm); line-height: 1.65; }

.newsletter-form { flex: 1; min-width: 280px; }

.newsletter-input-wrap {
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
  margin-bottom: .75rem;
}

.newsletter-input-wrap input {
  flex: 1;
  min-width: 200px;
  padding: .8rem 1rem;
  border: 1px solid rgba(255,255,255,.2);
  border-radius: var(--radius-pill);
  background: rgba(255,255,255,.08);
  color: var(--clr-white);
  font-size: var(--fs-sm);
  font-family: var(--font-body);
  outline: none;
  transition: border-color var(--transition), background var(--transition);
}
.newsletter-input-wrap input::placeholder { color: rgba(255,255,255,.45); }
.newsletter-input-wrap input:focus {
  border-color: rgba(255,255,255,.45);
  background: rgba(255,255,255,.12);
}

.newsletter-btn { flex-shrink: 0; white-space: nowrap; }

.newsletter-disclaimer {
  font-size: .72rem;
  color: rgba(255,255,255,.45);
  line-height: 1.5;
}
.newsletter-disclaimer a { color: rgba(255,255,255,.6); text-decoration: underline; }

@media (max-width: 768px) {
  .newsletter-card { flex-direction: column; gap: 2rem; padding: 2rem; }
  .newsletter-input-wrap { flex-direction: column; }
  .newsletter-btn { width: 100%; justify-content: center; }
}