/* ===================== BLOG SECTION ===================== */
.blog-section {
  padding: 60px 0 80px;
}

/* ===================== CATEGORY FILTER ===================== */
.blog-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 50px;
}
.blog-filter-btn {
  background: #fff;
  color: var(--blue-royal);
  border: 2px solid rgba(13,71,161,.15);
  font-weight: 600;
  font-size: .85rem;
  padding: 8px 20px;
  border-radius: 40px;
  cursor: pointer;
  transition: all .2s ease;
}
.blog-filter-btn:hover {
  background: var(--blue-mid);
  color: #fff;
  border-color: var(--blue-mid);
  transform: translateY(-2px);
}
.blog-filter-btn.active {
  background: var(--blue-royal);
  color: #fff;
  border-color: var(--blue-royal);
  box-shadow: 0 6px 16px rgba(13,71,161,.3);
}

/* ===================== FEATURED POST ===================== */
.featured-post {
  background: #fff;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 12px 36px rgba(3,27,78,.15);
  margin-bottom: 60px;
  transition: transform .3s ease, box-shadow .3s ease;
}
.featured-post:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(3,27,78,.22);
}
.featured-img-wrap {
  position: relative;
  height: 100%;
  min-height: 320px;
  overflow: hidden;
}
.featured-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .8s ease;
  display: block;
}
.featured-post:hover .featured-img-wrap img { transform: scale(1.05); }
.featured-badge {
  position: absolute;
  top: 20px;
  left: 20px;
  background: var(--accent-gold);
  color: var(--blue-deep);
  font-weight: 700;
  font-size: .75rem;
  padding: 6px 16px;
  border-radius: 30px;
  text-transform: uppercase;
  letter-spacing: 1px;
  box-shadow: 0 4px 12px rgba(0,0,0,.25);
  z-index: 2;
}
.featured-body {
  padding: 40px 40px 40px 10px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 100%;
}
@media (max-width: 991px) {
  .featured-body { padding: 30px; }
}
.featured-body .blog-tag { margin-bottom: 16px; }
.featured-body h3 {
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  font-weight: 800;
  color: var(--blue-deep);
  line-height: 1.25;
  margin-bottom: 16px;
}
.featured-body p {
  color: var(--muted);
  font-size: .98rem;
  line-height: 1.7;
  margin-bottom: 22px;
}

/* ===================== BLOG META ===================== */
.blog-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  font-size: .82rem;
  color: var(--muted);
  margin-bottom: 16px;
}
.blog-meta span { display: inline-flex; align-items: center; gap: 5px; }
.blog-meta i { color: var(--blue-mid); font-size: .95rem; }

/* ===================== BLOG CARDS ===================== */
.blog-card {
  background: #fff;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 6px 24px rgba(3,27,78,.10);
  transition: transform .3s ease, box-shadow .3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.blog-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 18px 40px rgba(3,27,78,.20);
}
.blog-img-wrap {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
}
.blog-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
  display: block;
}
.blog-card:hover .blog-img-wrap img { transform: scale(1.08); }

.blog-body {
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

/* ===================== TAGS (color-coded per category) ===================== */
.blog-tag {
  display: inline-block;
  font-size: .72rem;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: .6px;
  align-self: flex-start;
}
.blog-tag.speaking   { background: rgba(245,180,0,.15);  color: #9a6c00; }
.blog-tag.radio      { background: rgba(30,136,229,.15); color: var(--blue-mid); }
.blog-tag.ai         { background: rgba(103,58,183,.15); color: #5e35b1; }
.blog-tag.robotics   { background: rgba(0,150,136,.15);  color: #00897b; }
.blog-tag.digital    { background: rgba(216,67,21,.15);  color: #c63a10; }
.blog-tag.community  { background: rgba(233,30,99,.15);  color: #c2185b; }

.blog-body h5 {
  color: var(--blue-deep);
  font-weight: 700;
  font-size: 1.08rem;
  line-height: 1.4;
  margin-bottom: 12px;
}
.blog-body p {
  color: var(--muted);
  font-size: .9rem;
  line-height: 1.65;
  margin-bottom: 18px;
  flex-grow: 1;
}

/* ===================== READ MORE LINK ===================== */
.blog-read {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--blue-mid);
  font-weight: 600;
  font-size: .88rem;
  text-decoration: none;
  align-self: flex-start;
  transition: color .2s ease;
}
.blog-read i { transition: transform .25s ease; }
.blog-read:hover {
  color: var(--accent-line);
}
.blog-read:hover i { transform: translateX(6px); }

/* ===================== NEWSLETTER CTA ===================== */
.blog-newsletter {
  background: linear-gradient(135deg, var(--blue-royal), var(--blue-mid));
  border-radius: 24px;
  padding: 50px 40px;
  margin-top: 70px;
  color: #fff;
  text-align: center;
  box-shadow: 0 16px 40px rgba(3,27,78,.20);
}
.blog-newsletter h3 {
  font-weight: 800;
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 10px;
}
.blog-newsletter p {
  color: rgba(255,255,255,.85);
  max-width: 520px;
  margin: 0 auto 24px;
  font-size: 1rem;
}
.blog-newsletter form {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  max-width: 480px;
  margin: 0 auto;
}
.blog-newsletter .form-control {
  flex: 1;
  min-width: 200px;
  border-radius: 40px;
  border: none;
  padding: 13px 22px;
  font-size: .95rem;
}
.blog-newsletter .form-control:focus {
  box-shadow: 0 0 0 3px rgba(245,180,0,.4);
  outline: none;
}
.blog-newsletter .btn-listen {
  box-shadow: 0 6px 18px rgba(0,0,0,.25);
}

/* ===================== MOBILE ===================== */
@media (max-width: 991px) {
  .blog-section { padding: 40px 0 60px; }
  .featured-img-wrap { min-height: 240px; }
  .blog-newsletter { padding: 40px 24px; }
}
@media (max-width: 575px) {
  .blog-filter-btn { font-size: .78rem; padding: 7px 16px; }
  .blog-newsletter form { flex-direction: column; }
  .blog-newsletter .btn-listen { width: 100%; justify-content: center; }
}