:root {
  --accent: #6d28d9;
  --accent-2: #8b5cf6;
  --accent-light: #a78bfa;
  --ink: #111827;
  --muted: #6b7280;
  --card: #ffffff;
  --bg: #fafafa;
  --soft-border: #e5e7eb;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 8px rgba(17, 24, 39, 0.06);
  --shadow: 0 8px 24px rgba(17, 24, 39, 0.08);
  --shadow-lg: 0 20px 60px rgba(109, 40, 217, 0.15);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
}

body {
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  margin: 0;
  padding: 0;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* NAVBAR */
.navbar {
  background: rgba(255, 255, 255, 0.95) !important;
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--soft-border);
}

.navbar-brand {
  transition: var(--transition);
}

.navbar-brand:hover {
  transform: translateY(-2px);
}

.navbar-toggler {
  border-color: var(--soft-border);
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%2817, 24, 39, 1%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: inline-grid;
  place-items: center;
  color: #fff;
  font-weight: 800;
  box-shadow: 0 6px 20px rgba(109, 40, 217, 0.4);
  transition: var(--transition);
}

.brand-mark:hover {
  box-shadow: 0 8px 28px rgba(109, 40, 217, 0.5);
  transform: scale(1.05);
}

.brand-title {
  letter-spacing: -0.5px;
  font-size: 1.2rem;
}

.nav-link {
  font-weight: 500;
  padding: 0.5rem 1rem !important;
  border-radius: 8px;
  transition: var(--transition);
}

.nav-link:hover {
  background: rgba(109, 40, 217, 0.08);
  color: var(--accent) !important;
  text-decoration: none;
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  border: none;
  padding: 0.6rem 1.4rem;
  border-radius: 10px;
  font-weight: 600;
  box-shadow: 0 8px 20px rgba(109, 40, 217, 0.35);
  transition: var(--transition);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(109, 40, 217, 0.45);
  color: #fff;
}

/* HERO SECTION */
.hero-section {
  background: linear-gradient(180deg, #ffffff 0%, #f3f0ff 100%);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.badge-accent {
  background: rgba(109, 40, 217, 0.1);
  color: var(--accent);
  border: 1px solid rgba(109, 40, 217, 0.2);
  padding: 0.5rem 1.2rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  margin-bottom: 1.5rem;
  animation: fadeInDown 0.6s ease;
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, var(--ink), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeInUp 0.6s ease 0.1s backwards;
}

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

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--muted);
  margin-bottom: 2.5rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  animation: fadeInUp 0.6s ease 0.2s backwards;
}

.hero-search {
  max-width: 600px;
  margin: 0 auto 3rem;
  animation: fadeInUp 0.6s ease 0.3s backwards;
}

.search-wrapper {
  background: white;
  border: 2px solid var(--soft-border);
  border-radius: 16px;
  padding: 6px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.search-wrapper:focus-within {
  border-color: var(--accent);
  box-shadow: 0 8px 24px rgba(109, 40, 217, 0.2);
}

.search-wrapper i {
  color: var(--muted);
  margin-left: 12px;
  font-size: 1.1rem;
}

.search-wrapper input {
  border: none;
  outline: none;
  width: 100%;
  background: transparent;
  font-size: 1rem;
  padding: 8px 0;
}

.search-btn {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
  border: none;
  padding: 12px 28px;
  border-radius: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.search-btn:hover {
  transform: translateX(2px);
  box-shadow: 0 4px 12px rgba(109, 40, 217, 0.4);
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 4rem;
  flex-wrap: wrap;
  animation: fadeInUp 0.6s ease 0.4s backwards;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 500;
}

/* SECTION HEADERS */
.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 0.75rem;
  color: var(--ink);
}

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

/* CATEGORIES GRID */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.category-card {
  background: white;
  border: 2px solid var(--soft-border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}

.category-card:hover::before,
.category-card.active::before {
  transform: scaleX(1);
}

.category-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.category-card.active {
  border-color: var(--accent);
  background: linear-gradient(180deg, rgba(109, 40, 217, 0.05), white);
}

.category-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 1rem;
  background: linear-gradient(135deg, rgba(109, 40, 217, 0.1), rgba(139, 92, 246, 0.1));
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 1.5rem;
  color: var(--accent);
  transition: var(--transition);
}

.category-card:hover .category-icon {
  transform: scale(1.1) rotate(5deg);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
}

.category-name {
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: var(--ink);
}

.category-count {
  color: var(--muted);
  font-size: 0.9rem;
}

/* POSTS GRID */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 2rem;
}

.card-post {
  background: white;
  border: 1px solid var(--soft-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card-post:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-light);
}

.card-post .thumb {
  aspect-ratio: 16/9;
  width: 100%;
  object-fit: cover;
  background: linear-gradient(135deg, #f3f0ff, #e9d5ff);
  transition: var(--transition);
}

.card-post:hover .thumb {
  transform: scale(1.05);
}

.card-post .content {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-post .meta {
  color: var(--muted);
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.card-post h3 {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 0.75rem;
  color: var(--ink);
}

.card-post p {
  color: var(--muted);
  line-height: 1.6;
  flex: 1;
  margin-bottom: 1rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.9rem;
  border-radius: 50px;
  background: rgba(109, 40, 217, 0.1);
  color: var(--accent);
  border: 1px solid rgba(109, 40, 217, 0.2);
  font-weight: 600;
  font-size: 0.8rem;
}

/* PAGINATION */
.pagination-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 4rem;
  flex-wrap: wrap;
}

.pagination-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  background: white;
  border: 2px solid var(--soft-border);
  border-radius: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.pagination-btn:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.pagination-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.pagination-numbers {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.pagination-number {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  background: white;
  border: 2px solid var(--soft-border);
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.pagination-number:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.pagination-number.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
  border-color: transparent;
}

.pagination-dots {
  color: var(--muted);
  padding: 0 0.5rem;
}

/* NEWSLETTER */
.newsletter-section {
  background: linear-gradient(180deg, transparent 0%, #f3f0ff 100%);
  padding: 80px 0;
  margin-top: 80px;
}

.newsletter-card {
  background: white;
  border: 2px solid var(--soft-border);
  border-radius: var(--radius-lg);
  padding: 3rem;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.newsletter-card::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.newsletter-content {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.newsletter-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: white;
  font-size: 2rem;
  box-shadow: 0 12px 32px rgba(109, 40, 217, 0.3);
}

.newsletter-title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 1rem;
  color: var(--ink);
}

.newsletter-subtitle {
  color: var(--muted);
  font-size: 1.1rem;
  margin-bottom: 2rem;
  line-height: 1.6;
}

.newsletter-form {
  margin-bottom: 2rem;
}

.input-group {
  display: flex;
  align-items: center;
  gap: 12px;
  background: white;
  border: 2px solid var(--soft-border);
  border-radius: 16px;
  padding: 8px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.input-group:focus-within {
  border-color: var(--accent);
  box-shadow: 0 8px 24px rgba(109, 40, 217, 0.2);
}

.input-group i {
  color: var(--muted);
  margin-left: 12px;
  font-size: 1.1rem;
}

.input-group input {
  border: none;
  outline: none;
  flex: 1;
  background: transparent;
  font-size: 1rem;
  padding: 12px 8px;
}

.btn-subscribe {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
  border: none;
  padding: 14px 32px;
  border-radius: 12px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-subscribe:hover {
  transform: translateX(4px);
  box-shadow: 0 6px 20px rgba(109, 40, 217, 0.4);
}

.newsletter-features {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.feature-item i {
  color: var(--accent);
  font-size: 1.1rem;
}

/* FOOTER */
.footer {
  background: white;
  border-top: 1px solid var(--soft-border);
  margin-top: 80px;
  padding: 3rem 0;
}

.footer .brand-mark {
  width: 48px;
  height: 48px;
}

.footer a {
  color: var(--muted);
  transition: var(--transition);
  font-size: 1.2rem;
}

.footer a:hover {
  color: var(--accent);
  transform: translateY(-2px);
}

/* POST CONTENT */
.post h1, .post h2, .post h3 {
  line-height: 1.3;
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: var(--ink);
}

.post img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--soft-border);
  box-shadow: var(--shadow-sm);
}

.post blockquote {
  border-left: 4px solid var(--accent);
  padding-left: 1.5rem;
  padding: 1rem 1.5rem;
  background: rgba(109, 40, 217, 0.05);
  border-radius: 0 12px 12px 0;
  margin: 1.5rem 0;
  color: var(--ink);
  font-style: italic;
}

.post code {
  background: rgba(109, 40, 217, 0.08);
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  font-size: 0.9em;
  color: var(--accent);
}

.post pre {
  background: #1f2937;
  color: #e5e7eb;
  padding: 1.5rem;
  border-radius: var(--radius);
  overflow-x: auto;
}

.post pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}

/* RELATED */
.related {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 2px solid var(--soft-border);
}

.related h4 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  font-weight: 700;
}

.related .pill {
  display: inline-block;
  border: 2px solid var(--soft-border);
  border-radius: 50px;
  padding: 0.6rem 1.2rem;
  margin: 0.5rem 0.5rem 0 0;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.related .pill:hover {
  border-color: var(--accent);
  background: rgba(109, 40, 217, 0.05);
  color: var(--accent);
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero-section {
    padding: 60px 0;
  }

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

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

  .hero-stats {
    gap: 2rem;
  }

  .stat-number {
    font-size: 2rem;
  }

  .search-btn {
    padding: 10px 20px;
    font-size: 0.9rem;
  }

  .categories-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
  }

  .category-card {
    padding: 1.5rem 1rem;
  }

  .category-icon {
    width: 50px;
    height: 50px;
    font-size: 1.2rem;
  }

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

  .newsletter-card {
    padding: 2rem 1.5rem;
  }

  .newsletter-features {
    gap: 1rem;
    flex-direction: column;
    align-items: center;
  }

  .input-group {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-subscribe {
    width: 100%;
    justify-content: center;
  }

  .pagination-wrapper {
    gap: 0.5rem;
  }

  .pagination-btn span {
    display: none;
  }

  .pagination-numbers {
    gap: 0.25rem;
  }

  .pagination-number {
    width: 36px;
    height: 36px;
  }
}

/* ANIMATIONS */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card-post {
  animation: slideUp 0.5s ease backwards;
}

.card-post:nth-child(1) { animation-delay: 0.1s; }
.card-post:nth-child(2) { animation-delay: 0.2s; }
.card-post:nth-child(3) { animation-delay: 0.3s; }
.card-post:nth-child(4) { animation-delay: 0.4s; }
.card-post:nth-child(5) { animation-delay: 0.5s; }
.card-post:nth-child(6) { animation-delay: 0.6s; }

/* UTILITIES */
.shadow-soft {
  box-shadow: var(--shadow);
}

/* SCROLLBAR */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}