/* ═══════════════════════════════════════════════════════════════
   BLOG PAGE — css/pages/blog-page.css
   Mihari Intelligence | /blog/
   ═══════════════════════════════════════════════════════════════ */

.blog-page {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  padding: 120px 40px 80px;
}

.blog-page #particles-js {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.blog-page-container {
  max-width: 1280px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

/* ─── Header ─── */
.blog-page-header {
  text-align: center;
  margin-bottom: 50px;
  animation: blogFadeUp 0.8s ease-out;
}

.blog-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.7rem;
  color: var(--cyan);
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.25);
  padding: 6px 18px;
  border-radius: 100px;
  margin-bottom: 24px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.blog-tag::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--cyan);
  animation: pulse-tag 2s infinite;
}

.blog-page-header h1 {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  color: var(--white);
  margin-bottom: 18px;
  letter-spacing: 0.02em;
  line-height: 1.2;
  background: linear-gradient(135deg, #fff 0%, var(--silver) 60%, var(--cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.blog-page-header p {
  color: var(--text-dim);
  font-family: 'Exo 2', sans-serif;
  font-size: 1.1rem;
  max-width: 720px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ─── Filtros ─── */
.blog-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 50px;
  animation: blogFadeUp 0.8s ease-out 0.2s backwards;
}

.filter-btn {
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--silver);
  background: rgba(8, 20, 38, 0.6);
  border: 1px solid rgba(0, 212, 255, 0.15);
  padding: 10px 22px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  backdrop-filter: blur(10px);
}

.filter-btn:hover {
  border-color: var(--cyan);
  background: rgba(0, 212, 255, 0.08);
  color: var(--cyan);
  transform: translateY(-1px);
}

.filter-btn.active {
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 0 25px rgba(0, 212, 255, 0.3);
}

/* ─── Loading state ─── */
.blog-loading {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-dim);
}

.loading-spinner {
  width: 48px;
  height: 48px;
  border: 3px solid rgba(0, 212, 255, 0.15);
  border-top-color: var(--cyan);
  border-radius: 50%;
  margin: 0 auto 20px;
  animation: spin 0.8s linear infinite;
}

.blog-loading p {
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
}

/* ─── Empty state ─── */
.blog-empty {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-dim);
}

/* ─── Grid de posts ─── */
.blog-page-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  animation: blogFadeUp 0.8s ease-out 0.4s backwards;
}

/* ─── Post card ─── */
.blog-post-card {
  background: rgba(10, 24, 46, 0.6);
  border: 1px solid rgba(0, 212, 255, 0.1);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  position: relative;
  backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
}

.blog-post-card-link {
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.blog-post-card:hover {
  border-color: var(--cyan);
  box-shadow: 0 0 40px rgba(0, 212, 255, 0.1), 0 20px 50px rgba(0, 0, 0, 0.3);
  transform: translateY(-6px);
}

.blog-post-card-image {
  position: relative;
  height: 220px;
  overflow: hidden;
  background: #061022;
}

.blog-post-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.blog-post-card:hover .blog-post-card-image img {
  transform: scale(1.08);
}

.blog-post-card-image::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 50%;
  background: linear-gradient(to top, rgba(10, 24, 46, 0.9), transparent);
  pointer-events: none;
}

.blog-post-card-content {
  padding: 24px 28px 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.blog-post-card-tags {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.blog-post-card-tag {
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 4px;
  background: rgba(0, 212, 255, 0.1);
  color: var(--cyan);
  border: 1px solid rgba(0, 212, 255, 0.2);
}

.blog-post-card-tag.date {
  background: rgba(0, 102, 255, 0.08);
  color: var(--blue-bright);
  border-color: rgba(0, 102, 255, 0.2);
}

.blog-post-card-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
  line-height: 1.4;
  letter-spacing: 0.02em;
  transition: color 0.3s;
}

.blog-post-card:hover .blog-post-card-title {
  color: var(--cyan);
  text-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

.blog-post-card-excerpt {
  color: var(--text-dim);
  font-family: 'Exo 2', sans-serif;
  font-size: 0.85rem;
  line-height: 1.7;
  margin-bottom: 18px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.blog-post-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid rgba(0, 212, 255, 0.08);
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.78rem;
  color: var(--text-dim);
}

.blog-post-card-meta .reading-time {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.blog-post-card-meta .read-arrow {
  color: var(--cyan);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: transform 0.3s;
}

.blog-post-card:hover .read-arrow {
  transform: translateX(4px);
}

/* ─── Animations ─── */
@keyframes blogFadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse-tag {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ─── Responsive ─── */
@media (max-width: 1024px) {
  .blog-page-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .blog-page {
    padding: 100px 20px 60px;
  }
  .blog-page-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .blog-filters {
    gap: 8px;
  }
  .filter-btn {
    font-size: 0.78rem;
    padding: 8px 16px;
  }
}