/* ==========================================================================
   PAVLO DESIGN SYSTEM & THEME STYLES
   ========================================================================== */

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--pavlo-bg);
  color: var(--pavlo-text-main);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.2s ease;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  list-style: none;
}

.mono {
  font-family: var(--font-mono);
}

/* --- Layout & Containers --- */
.pavlo-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

@media (max-width: 768px) {
  .pavlo-container {
    padding: 0 1.25rem;
  }
}

/* --- Dotted Grid Backgrounds (Like pavlo.id Hero & Footer) --- */
.dotted-grid {
  background-image: radial-gradient(rgba(15, 23, 42, 0.12) 1px, transparent 1px);
  background-size: 24px 24px;
}

.dark-dotted {
  background-image: radial-gradient(rgba(255, 255, 255, 0.12) 1px, transparent 1px);
  background-size: 24px 24px;
}

/* --- Navigation Bar (Sticky Glassmorphic) --- */
.pavlo-navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(248, 250, 252, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--pavlo-border);
  transition: box-shadow 0.3s ease;
}

.pavlo-navbar.scrolled {
  box-shadow: 0 10px 30px -10px rgba(15, 23, 42, 0.08);
}

.pavlo-nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.pavlo-brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--pavlo-text-main);
}

.pavlo-brand svg {
  width: 36px;
  height: 32px;
}

.pavlo-brand-badge {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background-color: var(--pavlo-blue-tint);
  color: var(--pavlo-blue);
  padding: 2px 8px;
  border-radius: 6px;
  margin-left: 4px;
}

.pavlo-nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.pavlo-nav-links a {
  font-size: 14px;
  font-weight: 600;
  color: var(--pavlo-text-muted);
  transition: color 0.2s ease;
}

.pavlo-nav-links a:hover,
.pavlo-nav-links a.active {
  color: var(--pavlo-navy);
}

.pavlo-nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn-login {
  padding: 0.625rem 1.25rem;
  font-size: 14px;
  font-weight: 600;
  color: var(--pavlo-text-main);
  border-radius: 10px;
  transition: background-color 0.2s ease;
}

.btn-login:hover {
  background-color: #F1F5F9;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  font-size: 14px;
  font-weight: 600;
  color: #FFFFFF;
  background-color: var(--pavlo-blue);
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
  background-color: var(--pavlo-blue-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px -5px rgba(37, 99, 235, 0.5);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  font-size: 14px;
  font-weight: 600;
  color: var(--pavlo-text-main);
  background-color: #FFFFFF;
  border: 1px solid var(--pavlo-border);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  border-color: var(--pavlo-text-main);
  background-color: var(--pavlo-bg);
}

/* --- Mobile Menu Button --- */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--pavlo-text-main);
  cursor: pointer;
}

@media (max-width: 992px) {
  .pavlo-nav-links, .btn-login {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
}

/* --- Hero Section (Blog Index) --- */
.pavlo-hero {
  position: relative;
  padding: 5rem 0 4rem;
  overflow: hidden;
  border-bottom: 1px solid var(--pavlo-border);
}

.pavlo-hero-bg-glow {
  position: absolute;
  top: -30%;
  right: -10%;
  width: 70%;
  height: 140%;
  background: radial-gradient(ellipse at center, rgba(37, 99, 235, 0.12), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

.pavlo-hero-bg-glow-2 {
  position: absolute;
  bottom: -20%;
  left: -10%;
  width: 60%;
  height: 120%;
  background: radial-gradient(ellipse at center, rgba(245, 158, 11, 0.08), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

.pavlo-hero-content {
  position: relative;
  z-index: 10;
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  background-color: #FFFFFF;
  border: 1px solid var(--pavlo-border);
  padding: 0.375rem 0.875rem;
  border-radius: 9999px;
  font-size: 12px;
  font-weight: 600;
  color: var(--pavlo-text-muted);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
  margin-bottom: 1.75rem;
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #22C55E;
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
}

.pavlo-hero-title {
  font-size: clamp(38px, 5.5vw, 64px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.04em;
  color: var(--pavlo-text-main);
  margin-bottom: 1.5rem;
}

.pavlo-hero-title .text-blue {
  color: var(--pavlo-blue);
  position: relative;
}

.pavlo-hero-title .text-blue::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0;
  width: 100%;
  height: 8px;
  background-color: rgba(37, 99, 235, 0.15);
  z-index: -1;
  border-radius: 4px;
}

.pavlo-hero-title .text-amber {
  color: var(--pavlo-amber);
}

.pavlo-hero-desc {
  font-size: 18px;
  line-height: 1.6;
  color: var(--pavlo-text-muted);
  max-width: 640px;
  margin-bottom: 2.5rem;
}

/* --- Category Filter & Search Bar --- */
.pavlo-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px dashed var(--pavlo-border);
}

.category-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.cat-pill {
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 13px;
  font-weight: 600;
  background-color: #FFFFFF;
  border: 1px solid var(--pavlo-border);
  color: var(--pavlo-text-muted);
  transition: all 0.2s ease;
}

.cat-pill:hover, .cat-pill.active {
  background-color: var(--pavlo-navy);
  border-color: var(--pavlo-navy);
  color: #FFFFFF;
}

.search-form {
  position: relative;
  min-width: 280px;
}

.search-input {
  width: 100%;
  padding: 0.625rem 1rem 0.625rem 2.5rem;
  font-size: 14px;
  border: 1px solid var(--pavlo-border);
  border-radius: 10px;
  background-color: #FFFFFF;
  color: var(--pavlo-text-main);
  outline: none;
  transition: border-color 0.2s ease;
}

.search-input:focus {
  border-color: var(--pavlo-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.search-icon {
  position: absolute;
  left: 0.875rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--pavlo-text-light);
  pointer-events: none;
}

/* --- Blog Grid Section --- */
.pavlo-blog-section {
  padding: 5rem 0;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

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

@media (max-width: 640px) {
  .blog-grid {
    grid-template-columns: 1fr;
  }
}

/* --- Blog Card --- */
.blog-card {
  display: flex;
  flex-direction: column;
  background-color: var(--pavlo-card);
  border: 1px solid var(--pavlo-border);
  border-radius: 18px;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.blog-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 50px -20px rgba(30, 58, 138, 0.18);
  border-color: rgba(37, 99, 235, 0.3);
}

.blog-card-thumb {
  position: relative;
  width: 100%;
  height: 220px;
  background-color: var(--pavlo-navy);
  overflow: hidden;
}

.blog-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.blog-card-thumb-fallback {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--pavlo-navy) 0%, var(--pavlo-blue) 100%);
  color: #FFFFFF;
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.03em;
  opacity: 0.9;
}

.blog-card-content {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 1.75rem;
}

.blog-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.blog-cat-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background-color: var(--pavlo-blue-tint);
  color: var(--pavlo-blue);
  padding: 4px 10px;
  border-radius: 6px;
}

.blog-read-time {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--pavlo-text-light);
}

.blog-card-title {
  font-size: 20px;
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -0.02em;
  color: var(--pavlo-text-main);
  margin-bottom: 0.75rem;
  transition: color 0.2s ease;
}

.blog-card:hover .blog-card-title {
  color: var(--pavlo-blue);
}

.blog-card-excerpt {
  font-size: 14px;
  line-height: 1.6;
  color: var(--pavlo-text-muted);
  margin-bottom: 1.5rem;
  flex: 1;
}

.blog-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--pavlo-border);
  font-size: 13px;
  color: var(--pavlo-text-muted);
}

.author-info {
  display: flex;
  align-items: center;
  gap: 0.625rem;
}

.author-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: var(--pavlo-blue-tint);
  color: var(--pavlo-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 12px;
}

/* --- Pagination --- */
.pavlo-pagination {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 4rem;
}

.pavlo-pagination .page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 1rem;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  background-color: #FFFFFF;
  border: 1px solid var(--pavlo-border);
  color: var(--pavlo-text-main);
  transition: all 0.2s ease;
}

.pavlo-pagination .page-numbers:hover,
.pavlo-pagination .page-numbers.current {
  background-color: var(--pavlo-blue);
  border-color: var(--pavlo-blue);
  color: #FFFFFF;
}

/* --- Single Post Reading Experience --- */
.pavlo-single-hero {
  padding: 4rem 0 3rem;
  background-color: #FFFFFF;
  border-bottom: 1px solid var(--pavlo-border);
}

.single-hero-container {
  max-width: 840px;
  margin: 0 auto;
}

.breadcrumbs {
  font-size: 13px;
  color: var(--pavlo-text-muted);
  margin-bottom: 1.5rem;
}

.breadcrumbs a {
  color: var(--pavlo-blue);
  font-weight: 600;
}

.single-title {
  font-size: clamp(32px, 4.5vw, 48px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--pavlo-text-main);
  margin-bottom: 1.5rem;
}

.single-meta-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.25rem 0;
  border-top: 1px solid var(--pavlo-border);
  border-bottom: 1px solid var(--pavlo-border);
}

.single-author-box {
  display: flex;
  align-items: center;
  gap: 0.875rem;
}

.author-avatar-lg {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--pavlo-navy);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
}

.author-details .name {
  font-size: 15px;
  font-weight: 700;
  color: var(--pavlo-text-main);
}

.author-details .role {
  font-size: 13px;
  color: var(--pavlo-text-muted);
}

.share-buttons {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background-color: var(--pavlo-bg);
  color: var(--pavlo-text-muted);
  border: 1px solid var(--pavlo-border);
  transition: all 0.2s ease;
  cursor: pointer;
}

.share-btn:hover {
  background-color: var(--pavlo-blue);
  color: #FFFFFF;
  border-color: var(--pavlo-blue);
}

.single-thumb {
  max-width: 1000px;
  margin: 3rem auto 0;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 20px 40px -15px rgba(15, 23, 42, 0.1);
  border: 1px solid var(--pavlo-border);
}

/* --- Article Body Typography --- */
.article-container {
  max-width: 840px;
  margin: 3rem auto 5rem;
}

.article-body {
  font-size: 18px;
  line-height: 1.8;
  color: #334155;
}

.article-body p {
  margin-bottom: 1.75rem;
}

.article-body h2 {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--pavlo-text-main);
  margin: 2.5rem 0 1rem;
  padding-top: 1rem;
}

.article-body h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--pavlo-text-main);
  margin: 2rem 0 0.875rem;
}

.article-body ul, .article-body ol {
  margin: 0 0 1.75rem 1.5rem;
}

.article-body ul {
  list-style: disc;
}

.article-body ol {
  list-style: decimal;
}

.article-body li {
  margin-bottom: 0.5rem;
}

.article-body blockquote {
  border-left: 4px solid var(--pavlo-blue);
  background-color: var(--pavlo-blue-tint);
  padding: 1.5rem;
  border-radius: 0 12px 12px 0;
  margin: 2rem 0;
  font-style: italic;
  color: var(--pavlo-navy);
  font-weight: 500;
}

.article-body strong {
  color: var(--pavlo-text-main);
  font-weight: 700;
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--pavlo-border);
}

.tag-badge {
  font-family: var(--font-mono);
  font-size: 12px;
  background-color: #F1F5F9;
  color: var(--pavlo-text-muted);
  padding: 4px 12px;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.tag-badge:hover {
  background-color: var(--pavlo-navy);
  color: #FFFFFF;
}

/* --- Article CTA Banner (Like Pavlo Marketing Section) --- */
.article-cta-banner {
  margin: 4rem 0;
  background: linear-gradient(135deg, var(--pavlo-navy) 0%, #172554 100%);
  border-radius: 20px;
  padding: 3rem;
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(30, 58, 138, 0.3);
}

.article-cta-glow {
  position: absolute;
  top: -50%;
  right: -20%;
  width: 60%;
  height: 200%;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.3) 0%, transparent 70%);
  pointer-events: none;
}

.article-cta-content {
  position: relative;
  z-index: 10;
  max-width: 560px;
}

.article-cta-title {
  font-size: 28px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.article-cta-desc {
  font-size: 16px;
  line-height: 1.6;
  color: var(--pavlo-blue-light);
  margin-bottom: 1.75rem;
}

/* --- Footer (Dark Slate-900 with Dotted Pattern) --- */
.pavlo-footer {
  background-color: var(--pavlo-dark);
  color: #FFFFFF;
  padding: 5rem 0 3rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 4rem;
  margin-bottom: 4rem;
}

@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 640px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-brand-desc {
  font-size: 14px;
  line-height: 1.6;
  color: #94A3B8;
  margin-top: 1rem;
  max-width: 320px;
}

.footer-title {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--pavlo-amber);
  margin-bottom: 1.25rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  font-size: 14px;
  color: #CBD5E1;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--pavlo-blue-mid);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 13px;
  color: #64748B;
}

/* --- Reading Progress Bar --- */
#reading-progress {
  position: fixed;
  top: 72px;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--pavlo-blue) 0%, var(--pavlo-amber) 100%);
  z-index: 100;
  transition: width 0.1s ease;
}

/* --- Custom 404 & Page Template Styles --- */
.pavlo-page-section {
  padding: 5rem 0;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-card {
  background-color: #FFFFFF;
  border: 1px solid var(--pavlo-border);
  border-radius: 20px;
  padding: 3rem;
  max-width: 720px;
  width: 100%;
  box-shadow: 0 20px 40px -15px rgba(15, 23, 42, 0.08);
  text-align: center;
}