/* ============================================
   BLOG PAGE - SINAPSETECH
   Modern, Elegant & Sophisticated Design
   ============================================ */

:root {
  --primary-purple: #6b46c1;
  --primary-blue: #3b82f6;
  --dark-bg: #0f0f23;
  --darker-bg: #0a0a15;
  --card-bg: rgba(255, 255, 255, 0.05);
  --card-border: rgba(255, 255, 255, 0.1);
  --text-primary: #ffffff;
  --text-secondary: #a0aec0;
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   HERO SECTION
   ============================================ */

.blog-hero {
  position: relative;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  overflow: hidden;
  padding: 120px 20px 80px;
}

.blog-hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.circuit-pattern {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(107, 70, 193, 0.03) 2px, rgba(107, 70, 193, 0.03) 4px),
    repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(59, 130, 246, 0.03) 2px, rgba(59, 130, 246, 0.03) 4px);
  animation: circuitMove 20s linear infinite;
}

@keyframes circuitMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(50px, 50px); }
}

.gradient-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 30% 50%, rgba(107, 70, 193, 0.15) 0%, transparent 50%),
              radial-gradient(circle at 70% 50%, rgba(59, 130, 246, 0.15) 0%, transparent 50%);
}

.blog-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.blog-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50px;
  color: var(--text-primary);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 24px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.blog-hero-content h1 {
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 24px;
  line-height: 1.2;
  background: linear-gradient(135deg, #ffffff 0%, #e0e7ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.blog-hero-content p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 700px;
  margin: 0 auto;
}

/* ============================================
   SEARCH AND FILTERS
   ============================================ */

.blog-controls {
  padding: 60px 20px;
  background: var(--darker-bg);
}

.blog-controls-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
}

.blog-search {
  position: relative;
  flex: 1;
  min-width: 300px;
}

.blog-search i {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.blog-search input {
  width: 100%;
  padding: 16px 20px 16px 50px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  color: var(--text-primary);
  font-size: 1rem;
  transition: var(--transition);
  backdrop-filter: blur(10px);
}

.blog-search input:focus {
  outline: none;
  border-color: var(--primary-purple);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 3px rgba(107, 70, 193, 0.1);
}

.blog-search input::placeholder {
  color: var(--text-secondary);
}

.blog-filters {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  backdrop-filter: blur(10px);
}

.filter-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--text-primary);
  transform: translateY(-2px);
}

.filter-btn.active {
  background: var(--gradient-primary);
  border-color: transparent;
  color: var(--text-primary);
  box-shadow: 0 4px 16px rgba(107, 70, 193, 0.3);
}

/* ============================================
   FEATURED ARTICLE
   ============================================ */

.blog-featured {
  padding: 80px 20px;
  background: var(--dark-bg);
}

.blog-container {
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 48px;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.section-title i {
  color: var(--primary-purple);
  font-size: 2rem;
}

.featured-article {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  overflow: hidden;
  backdrop-filter: blur(10px);
  transition: var(--transition);
}

.featured-article:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  border-color: rgba(107, 70, 193, 0.3);
}

.featured-image {
  position: relative;
  overflow: hidden;
  height: 100%;
  min-height: 400px;
}

.featured-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.featured-article:hover .featured-image img {
  transform: scale(1.1);
}

.featured-badge {
  position: absolute;
  top: 20px;
  left: 20px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  border-radius: 50px;
  color: white;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 16px rgba(245, 87, 108, 0.4);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.featured-content {
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 20px;
  font-size: 0.9rem;
}

.article-category {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.85rem;
}

.article-category.ia {
  background: rgba(147, 51, 234, 0.2);
  color: #c084fc;
  border: 1px solid rgba(147, 51, 234, 0.3);
}

.article-category.seguranca {
  background: rgba(59, 130, 246, 0.2);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.article-category.privacidade {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.article-category.lgpd {
  background: rgba(245, 158, 11, 0.2);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.article-category.noticias {
  background: rgba(239, 68, 68, 0.2);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.article-date,
.article-read-time {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
}

.featured-content h3 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  line-height: 1.3;
}

.featured-content > p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
}

.article-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.article-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.article-author img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.2);
}

.article-author span {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.article-author strong {
  color: var(--text-primary);
}

.read-more-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 28px;
  background: var(--gradient-primary);
  color: white;
  font-weight: 600;
  border-radius: 10px;
  text-decoration: none;
  transition: var(--transition);
  box-shadow: 0 4px 16px rgba(107, 70, 193, 0.3);
}

.read-more-btn:hover {
  transform: translateX(5px);
  box-shadow: 0 6px 24px rgba(107, 70, 193, 0.5);
}

/* ============================================
   ARTICLES GRID
   ============================================ */

.blog-articles {
  padding: 80px 20px;
  background: var(--darker-bg);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 32px;
  margin-bottom: 60px;
}

.article-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  overflow: hidden;
  transition: var(--transition);
  backdrop-filter: blur(10px);
}

.article-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
  border-color: rgba(107, 70, 193, 0.3);
}

.article-image {
  position: relative;
  height: 240px;
  overflow: hidden;
}

.article-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.article-card:hover .article-image img {
  transform: scale(1.1);
}

.article-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.article-card:hover .article-overlay {
  opacity: 1;
}

.overlay-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: 50%;
  color: white;
  font-size: 1.5rem;
  text-decoration: none;
  transform: scale(0.8);
  transition: var(--transition);
}

.article-card:hover .overlay-link {
  transform: scale(1);
}

.article-content {
  padding: 28px;
}

.article-content h3 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-content > p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-content .article-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.read-time {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.read-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary-purple);
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
}

.read-more:hover {
  gap: 12px;
  color: #9f7aea;
}

/* ============================================
   LOAD MORE & NO RESULTS
   ============================================ */

.load-more-container {
  text-align: center;
  margin-top: 40px;
}

.load-more-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 40px;
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  backdrop-filter: blur(10px);
}

.load-more-btn:hover {
  background: var(--gradient-primary);
  border-color: transparent;
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(107, 70, 193, 0.4);
}

.no-results {
  text-align: center;
  padding: 80px 20px;
}

.no-results i {
  font-size: 4rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  opacity: 0.5;
}

.no-results h3 {
  font-size: 1.8rem;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.no-results p {
  font-size: 1.1rem;
  color: var(--text-secondary);
}

/* ============================================
   NEWSLETTER SECTION
   ============================================ */

.blog-newsletter {
  padding: 100px 20px;
  background: var(--dark-bg);
  position: relative;
  overflow: hidden;
}

.blog-newsletter::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 50% 50%, rgba(107, 70, 193, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.newsletter-container {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.newsletter-content {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  padding: 60px 40px;
  text-align: center;
  backdrop-filter: blur(10px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.newsletter-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  background: var(--gradient-primary);
  border-radius: 50%;
  margin-bottom: 32px;
  box-shadow: 0 8px 32px rgba(107, 70, 193, 0.4);
}

.newsletter-icon i {
  font-size: 2.5rem;
  color: white;
}

.newsletter-content h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.newsletter-content > p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.newsletter-form {
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
}

.newsletter-form input {
  flex: 1;
  padding: 18px 24px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  color: var(--text-primary);
  font-size: 1rem;
  transition: var(--transition);
}

.newsletter-form input:focus {
  outline: none;
  border-color: var(--primary-purple);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 3px rgba(107, 70, 193, 0.1);
}

.newsletter-form input::placeholder {
  color: var(--text-secondary);
}

.newsletter-form button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 18px 36px;
  background: var(--gradient-primary);
  border: none;
  border-radius: 12px;
  color: white;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 16px rgba(107, 70, 193, 0.3);
  white-space: nowrap;
}

.newsletter-form button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(107, 70, 193, 0.5);
}

.newsletter-privacy {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 16px;
}

.newsletter-privacy i {
  color: #34d399;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1024px) {
  .blog-hero-content h1 {
    font-size: 2.8rem;
  }

  .featured-article {
    grid-template-columns: 1fr;
  }

  .featured-image {
    min-height: 300px;
  }

  .articles-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
  }
}

@media (max-width: 768px) {
  .blog-hero {
    padding: 100px 20px 60px;
    min-height: 50vh;
  }

  .blog-hero-content h1 {
    font-size: 2.2rem;
  }

  .blog-hero-content p {
    font-size: 1.1rem;
  }

  .blog-controls-container {
    flex-direction: column;
    align-items: stretch;
  }

  .blog-search {
    min-width: 100%;
  }

  .blog-filters {
    justify-content: center;
  }

  .filter-btn {
    font-size: 0.85rem;
    padding: 10px 16px;
  }

  .section-title {
    font-size: 2rem;
  }

  .featured-content {
    padding: 28px;
  }

  .featured-content h3 {
    font-size: 1.6rem;
  }

  .featured-content > p {
    font-size: 1rem;
  }

  .article-footer {
    flex-direction: column;
    gap: 16px;
    align-items: flex-start;
  }

  .articles-grid {
    grid-template-columns: 1fr;
  }

  .newsletter-content {
    padding: 40px 24px;
  }

  .newsletter-content h2 {
    font-size: 2rem;
  }

  .form-group {
    flex-direction: column;
  }

  .newsletter-form button {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .blog-hero-badge {
    font-size: 0.8rem;
    padding: 8px 16px;
  }

  .blog-hero-content h1 {
    font-size: 1.8rem;
  }

  .blog-hero-content p {
    font-size: 1rem;
  }

  .filter-btn {
    font-size: 0.8rem;
    padding: 8px 12px;
  }

  .section-title {
    font-size: 1.6rem;
    flex-direction: column;
    gap: 8px;
  }

  .featured-content h3 {
    font-size: 1.4rem;
  }

  .article-content h3 {
    font-size: 1.2rem;
  }

  .newsletter-icon {
    width: 60px;
    height: 60px;
  }

  .newsletter-icon i {
    font-size: 2rem;
  }

  .newsletter-content h2 {
    font-size: 1.6rem;
  }
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.article-card {
  animation: fadeInUp 0.6s ease-out;
}

/* Stagger animation for cards */
.article-card:nth-child(1) { animation-delay: 0.1s; }
.article-card:nth-child(2) { animation-delay: 0.2s; }
.article-card:nth-child(3) { animation-delay: 0.3s; }
.article-card:nth-child(4) { animation-delay: 0.4s; }
.article-card:nth-child(5) { animation-delay: 0.5s; }
.article-card:nth-child(6) { animation-delay: 0.6s; }