/* Blog Page CSS */

/* Enhanced Typography */
body {
  font-family: 'Inter', 'Hind Siliguri', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Bangla Font Support with Better Rendering */
body.bangla-mode {
  font-family: 'Hind Siliguri', 'Inter', -apple-system, sans-serif;
  letter-spacing: 0.01em;
}

body.bangla-mode h1,
body.bangla-mode h2,
body.bangla-mode h3,
body.bangla-mode h4,
body.bangla-mode h5,
body.bangla-mode h6 {
  font-weight: 600;
  letter-spacing: 0;
}

/* Blog Header Section */
.blog-header {
  background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-varient) 100%);
  padding: 6rem 0 4rem;
  position: relative;
  overflow: hidden;
}

.blog-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 30px 30px;
  background-position: center center;
  z-index: 0;
  pointer-events: none;
}

.blog-header::after {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
  transform: translateX(-50%);
  z-index: 0;
  pointer-events: none;
}

.header-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  text-align: center;
}

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  width: fit-content;
}

.back-btn:hover {
  color: var(--color-white);
  transform: translateX(-5px);
}

.back-btn i {
  font-size: 1.2rem;
}

.blog-title-section {
  text-align: center;
  margin: 1rem 0;
}

.blog-main-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  margin-bottom: 0.5rem;
  background: linear-gradient(to right, #fff, rgba(255, 255, 255, 0.7));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -1px;
}

.blog-subtitle {
  font-size: 1.1rem;
  color: var(--color-light);
  max-width: 600px;
  margin: 0 auto;
}

.lang-toggle {
  position: absolute;
  top: 0;
  right: 1rem;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 2rem;
  padding: 0.6rem 1.2rem;
  color: var(--color-white);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
}

.lang-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.lang-toggle i {
  font-size: 1.2rem;
}

/* Search and Filter Section */
.search-filter-section {
  padding: 2rem 0;
  background: var(--color-bg);
}

.search-filter-container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.search-box {
  position: relative;
  max-width: 500px;
  margin: 0 auto;
  width: 100%;
}

.search-box i {
  position: absolute;
  left: 1.2rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-light);
  font-size: 1.1rem;
}

.search-box input {
  width: 100%;
  padding: 0.9rem 1.2rem 0.9rem 3rem;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 2rem;
  color: var(--color-white);
  font-size: 1rem;
  transition: var(--transition);
}

.search-box input:focus {
  outline: none;
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(74, 210, 149, 0.1);
}

.search-box input::placeholder {
  color: var(--color-light);
}

.filter-tags {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.filter-tag {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 2rem;
  padding: 0.6rem 1.5rem;
  color: var(--color-light);
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
  font-size: 0.95rem;
}

.filter-tag:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
  transform: translateY(-2px);
}

.filter-tag.active {
  background: var(--color-white);
  color: var(--color-bg);
  border-color: var(--color-white);
  box-shadow: 0 0 15px rgba(255, 255, 255, 0.3);
}

/* Blog Grid Section */
.blog-grid-section {
  padding: 3rem 0 5rem;
  min-height: 60vh;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
}

/* Blog Card */
.blog-card {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 1.5rem;
  transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.blog-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  border-color: rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.05);
}

/* Card Cover Thumbnails */
.blog-card-cover {
  height: 200px;
  width: 100%;
  background: #111;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.blog-card-cover::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.6;
  transition: opacity 0.4s ease;
  background-size: cover;
  background-position: center;
}

.blog-card:hover .blog-card-cover::before {
  opacity: 1;
  transform: scale(1.05);
  transition: all 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* Category-specific Cover Patterns */
.blog-card[data-category="ctf"] .blog-card-cover {
  background: linear-gradient(135deg, #1a0b0b 0%, #2d1010 100%);
}
.blog-card[data-category="ctf"] .blog-card-cover::before {
  background-image: radial-gradient(circle at 20% 50%, rgba(255, 107, 107, 0.15) 0%, transparent 50%),
                    linear-gradient(45deg, transparent 48%, rgba(255, 107, 107, 0.05) 49%, rgba(255, 107, 107, 0.05) 51%, transparent 52%);
  background-size: 100% 100%, 20px 20px;
}

.blog-card[data-category="bugbounty"] .blog-card-cover {
  background: linear-gradient(135deg, #0a111a 0%, #0f1c2d 100%);
}
.blog-card[data-category="bugbounty"] .blog-card-cover::before {
  background-image: radial-gradient(circle at 80% 80%, rgba(87, 165, 255, 0.15) 0%, transparent 50%),
                    linear-gradient(0deg, transparent 48%, rgba(87, 165, 255, 0.05) 49%, rgba(87, 165, 255, 0.05) 51%, transparent 52%);
  background-size: 100% 100%, 30px 30px;
}

.blog-card[data-category="tutorial"] .blog-card-cover {
  background: linear-gradient(135deg, #1a170b 0%, #2d2610 100%);
}
.blog-card[data-category="tutorial"] .blog-card-cover::before {
  background-image: radial-gradient(circle at 50% 20%, rgba(255, 195, 18, 0.1) 0%, transparent 60%),
                    repeating-linear-gradient(45deg, rgba(255, 195, 18, 0.03) 0, rgba(255, 195, 18, 0.03) 2px, transparent 2px, transparent 10px);
}

.blog-card[data-category="news"] .blog-card-cover {
  background: linear-gradient(135deg, #100f1a 0%, #1c1a2d 100%);
}
.blog-card[data-category="news"] .blog-card-cover::before {
  background-image: radial-gradient(circle at 20% 80%, rgba(162, 155, 254, 0.15) 0%, transparent 50%),
                    radial-gradient(circle at 80% 20%, rgba(162, 155, 254, 0.1) 0%, transparent 40%);
}

/* Featured Post Layout */
@media screen and (min-width: 992px) {
  .blog-card.featured {
    grid-column: 1 / -1;
    flex-direction: row;
    min-height: 400px;
  }

  .blog-card.featured .blog-card-cover {
    width: 50%;
    height: auto;
    min-height: 100%;
    border-bottom: none;
    border-right: 1px solid rgba(255, 255, 255, 0.05);
  }

  .blog-card.featured .blog-card-body {
    width: 50%;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
}

.blog-card-body {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 1.2rem;
}

.blog-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.category-badge {
  padding: 0.4rem 1rem;
  border-radius: 2rem;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.category-badge.ctf {
  background: rgba(255, 107, 107, 0.2);
  color: #ff6b6b;
  border: 1px solid rgba(255, 107, 107, 0.3);
}

.category-badge.bugbounty {
  background: rgba(87, 165, 255, 0.2);
  color: #57a5ff;
  border: 1px solid rgba(87, 165, 255, 0.3);
}

.category-badge.tutorial {
  background: rgba(255, 195, 18, 0.2);
  color: #ffc312;
  border: 1px solid rgba(255, 195, 18, 0.3);
}

.category-badge.news {
  background: rgba(162, 155, 254, 0.2);
  color: #a29bfe;
  border: 1px solid rgba(162, 155, 254, 0.3);
}

.read-time {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--color-light);
  font-size: 0.9rem;
}

.read-time i {
  font-size: 1rem;
}

.blog-card-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.blog-card-title {
  font-size: 1.4rem;
  font-weight: 600;
  color: #ffffff;
  line-height: 1.4;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card-excerpt {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1rem;
  line-height: 1.6;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.author-info {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.author-avatar {
  width: 35px;
  height: 35px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-primary);
}

.author-name {
  color: var(--color-white);
  font-weight: 500;
  font-size: 0.95rem;
}

.post-date {
  color: var(--color-light);
  font-size: 0.9rem;
}

.blog-card-footer {
  display: flex;
  justify-content: flex-end;
}

.read-more-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  padding: 0.5rem 1rem;
  border-radius: 2rem;
}

.read-more-btn:hover {
  color: var(--color-white);
  background: rgba(74, 210, 149, 0.1);
  transform: translateX(5px);
}

.read-more-btn i {
  transition: var(--transition);
}

.read-more-btn:hover i {
  transform: translateX(5px);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--color-light);
}

.empty-state i {
  font-size: 4rem;
  color: var(--color-primary);
  opacity: 0.5;
  margin-bottom: 1rem;
}

.empty-state h3 {
  font-size: 1.5rem;
  color: var(--color-white);
  margin-bottom: 0.5rem;
}

.empty-state p {
  font-size: 1rem;
  color: var(--color-light);
}

/* Blog Footer */
.blog-footer {
  background: var(--color-bg-varient);
  padding: 2rem 0;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.blog-footer p {
  margin: 0;
  color: var(--color-light);
  font-size: 0.95rem;
}

/* Responsive Design */
@media screen and (max-width: 768px) {
  .blog-main-title {
    font-size: 2rem;
  }

  .blog-subtitle {
    font-size: 1rem;
  }

  .lang-toggle {
    position: static;
    margin: 0 auto;
    width: fit-content;
  }

  .header-content {
    gap: 1.5rem;
  }

  .blog-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .filter-tags {
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 0.5rem;
  }

  .filter-tags::-webkit-scrollbar {
    height: 4px;
  }

  .filter-tags::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 2px;
  }

  .filter-tags::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: 2px;
  }

  .blog-card-title {
    font-size: 1.2rem;
  }

  .blog-card {
    padding: 1.5rem;
  }

  .blog-card-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}

@media screen and (max-width: 480px) {
  .blog-main-title {
    font-size: 1.8rem;
  }

  .search-box {
    max-width: 100%;
  }

  .blog-card-header {
    flex-direction: column;
    align-items: flex-start;
  }
}