/* ==========================================================================
   VIDYA ICS - BLOG & ADMIN STYLESHEET
   Integrates with main design system variables:
   --primary-navy, --primary-amber, --primary-teal, etc.
   ========================================================================== */

/* --- GENERAL BLOG LAYOUT & UTILITIES --- */
.blog-section {
  padding: 80px 0;
  background-color: var(--bg-light);
  min-height: calc(100vh - 400px);
}

.blog-hero {
  background: linear-gradient(135deg, var(--primary-navy) 0%, #0d3555 100%);
  padding: 60px 0;
  text-align: center;
  color: #ffffff;
  position: relative;
  overflow: hidden;
}

.blog-hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 12px;
  color: #ffffff;
}

.blog-hero p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* --- SEARCH & CATEGORY FILTERS --- */
.blog-filters {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.search-box {
  position: relative;
  flex: 1;
  max-width: 450px;
  min-width: 280px;
}

.search-box input {
  width: 100%;
  padding: 14px 20px 14px 45px;
  border-radius: 30px;
  border: 1.5px solid rgba(0, 0, 0, 0.1);
  background-color: #ffffff;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-dark);
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.search-box input:focus {
  outline: none;
  border-color: var(--primary-amber);
  box-shadow: 0 0 0 4px rgba(232, 184, 75, 0.15);
}

.search-box i {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1rem;
  pointer-events: none;
}

.category-tags {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.category-btn {
  background-color: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.08);
  color: var(--text-muted);
  padding: 8px 18px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.25s ease;
  font-family: var(--font-body);
}

.category-btn:hover, .category-btn.active {
  background-color: var(--primary-amber);
  color: var(--primary-navy);
  border-color: var(--primary-amber);
  font-weight: 600;
  box-shadow: var(--shadow-gold);
}

/* --- BLOG GRID & CARDS --- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.blog-card {
  background-color: #ffffff;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0, 0, 0, 0.04);
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.blog-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.blog-card-image {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 Aspect Ratio */
  overflow: hidden;
  background-color: #e2e8f0;
}

.blog-card-image img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.blog-card:hover .blog-card-image img {
  transform: scale(1.05);
}

.blog-card-badge {
  position: absolute;
  top: 15px;
  left: 15px;
  background: var(--primary-navy);
  color: #ffffff;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}

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

.blog-card-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 15px;
}

.blog-card-meta span {
  display: flex;
  align-items: center;
  gap: 5px;
}

.blog-card h3 {
  font-size: 1.25rem;
  color: var(--primary-navy);
  margin-bottom: 12px;
  line-height: 1.4;
  font-family: var(--font-heading);
}

.blog-card h3 a {
  color: inherit;
  text-decoration: none;
}

.blog-card h3 a:hover {
  color: var(--primary-teal);
}

.blog-card-text {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
  /* Line clamp after 3 lines */
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card-footer {
  margin-top: auto;
  padding-top: 15px;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.blog-read-more {
  color: var(--primary-teal);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s ease;
}

.blog-read-more:hover {
  color: var(--primary-amber-dark);
  gap: 10px;
}

/* --- EMPTY / ERROR STATES --- */
.no-blogs-found {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  background-color: #ffffff;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
}

.no-blogs-found i {
  font-size: 3.5rem;
  color: var(--primary-amber);
  margin-bottom: 20px;
  opacity: 0.7;
}

.no-blogs-found h3 {
  color: var(--primary-navy);
  font-size: 1.5rem;
  margin-bottom: 10px;
}

.no-blogs-found p {
  color: var(--text-muted);
  max-width: 400px;
  margin: 0 auto;
}

/* --- LOADING SKELETON ANIMATION --- */
@keyframes skeleton-loading {
  0% {
    background-color: #edf2f7;
  }
  50% {
    background-color: #e2e8f0;
  }
  100% {
    background-color: #edf2f7;
  }
}

.skeleton-image {
  animation: skeleton-loading 1.5s infinite ease-in-out;
}

.skeleton-text {
  animation: skeleton-loading 1.5s infinite ease-in-out;
  height: 16px;
  margin-bottom: 12px;
  border-radius: 4px;
  width: 100%;
}

.skeleton-title {
  height: 24px;
  width: 80%;
  margin-bottom: 16px;
}

.skeleton-meta {
  height: 12px;
  width: 40%;
  margin-bottom: 20px;
}

.skeleton-btn {
  height: 20px;
  width: 30%;
  border-radius: 10px;
}

/* --- BLOG DETAIL PAGE --- */
.blog-detail-container {
  max-width: 850px;
  margin: 0 auto;
}

.blog-detail-back {
  margin-bottom: 30px;
}

.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-dark);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  transition: transform 0.2s ease, color 0.2s ease;
}

.btn-back:hover {
  transform: translateX(-4px);
  color: var(--primary-amber-dark);
}

.blog-detail-header {
  margin-bottom: 30px;
}

.blog-detail-category {
  display: inline-block;
  background-color: rgba(26, 109, 111, 0.1);
  color: var(--primary-teal);
  padding: 6px 16px;
  border-radius: 30px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 16px;
  text-transform: uppercase;
}

.blog-detail-header h1 {
  font-size: clamp(2rem, 3.5vw, 2.5rem);
  color: var(--primary-navy);
  margin-bottom: 16px;
  line-height: 1.3;
}

.blog-detail-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.blog-detail-meta span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.blog-detail-image {
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-bottom: 40px;
}

.blog-detail-image img {
  width: 100%;
  max-height: 500px;
  object-fit: cover;
  display: block;
}

.blog-detail-content {
  font-size: 1.05rem;
  color: var(--text-dark);
  line-height: 1.8;
  font-family: var(--font-body);
}

.blog-detail-content p {
  margin-bottom: 24px;
}

.blog-detail-content h2, .blog-detail-content h3 {
  font-family: var(--font-heading);
  color: var(--primary-navy);
  margin: 35px 0 15px;
  font-weight: 700;
}

.blog-detail-content h2 {
  font-size: 1.6rem;
  border-left: 4px solid var(--primary-amber);
  padding-left: 15px;
}

.blog-detail-content h3 {
  font-size: 1.3rem;
}

.blog-detail-content ul, .blog-detail-content ol {
  margin-bottom: 24px;
  padding-left: 24px;
}

.blog-detail-content li {
  margin-bottom: 8px;
}

.blog-detail-content strong {
  color: var(--primary-navy);
}

/* --- SCREEN RESPONSIVENESS OVERRIDES --- */
@media (max-width: 1024px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

@media (max-width: 768px) {
  .blog-grid {
    grid-template-columns: 1fr;
  }
  
  .blog-filters {
    flex-direction: column;
    align-items: stretch;
  }
  
  .search-box {
    max-width: 100%;
  }
}