/* ============================================================
   DreaInno — Dedicated Blog & Technical Publication Styling
   Obsidian Dark Theme, Precision Typography, Cyan/Pink Glow
   ============================================================ */

/* ── Reading Progress Bar ── */
.reading-progress-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: transparent;
  z-index: 1000;
  pointer-events: none;
}

.reading-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #2b4bee, #38bdf8, #ee2b6c);
  transition: width 0.1s ease-out;
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.6);
}

/* ── Blog Hub Page (blog/index.html) ── */
.blog-hub-hero {
  padding: 140px 0 60px;
  text-align: center;
  position: relative;
}

.blog-hub-hero .hero-title {
  font-size: clamp(2.2rem, 4.5vw, 3.8rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 20px;
}

.blog-hub-lead {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  color: var(--color-text-secondary);
  max-width: 720px;
  margin: 0 auto 36px;
  line-height: 1.65;
}

.blog-category-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 50px;
}

.filter-btn {
  background: #111115;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--duration-fast) ease;
}

.filter-btn:hover,
.filter-btn.active {
  background: #181822;
  border-color: rgba(56, 189, 248, 0.5);
  color: #ffffff;
  box-shadow: 0 0 16px rgba(56, 189, 248, 0.2);
}

/* ── Blog Grid ── */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 28px;
  margin-bottom: 80px;
}

.blog-card {
  background: #111115;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.25s var(--ease-spring), border-color 0.25s ease, box-shadow 0.25s ease;
  position: relative;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
}

.blog-card:hover {
  transform: translateY(-4px);
  border-color: rgba(56, 189, 248, 0.4);
  box-shadow: 0 0 28px rgba(56, 189, 248, 0.22);
  background: #13141a;
}

.blog-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.blog-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.25);
  color: #38bdf8;
}

.blog-badge.pink {
  background: rgba(238, 43, 108, 0.08);
  border-color: rgba(238, 43, 108, 0.25);
  color: #ee2b6c;
}

.blog-badge.green {
  background: rgba(0, 204, 118, 0.08);
  border-color: rgba(0, 204, 118, 0.25);
  color: #00cc76;
}

.blog-read-time {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.blog-card-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.015em;
  color: #ffffff;
  margin-bottom: 14px;
  transition: color 0.2s ease;
}

.blog-card:hover .blog-card-title {
  color: #38bdf8;
}

.blog-card-excerpt {
  font-size: 0.93rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
}

.blog-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.blog-author-meta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.blog-author-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.blog-author-name {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-main);
}

.blog-publish-date {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

.blog-read-more-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #38bdf8;
  transition: gap 0.2s ease;
}

.blog-card:hover .blog-read-more-link {
  gap: 10px;
}

/* ── Featured Hero Blog Card ── */
.blog-featured-card {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 36px;
  padding: 42px;
  background: #111115;
  border: 1px solid rgba(56, 189, 248, 0.3);
  box-shadow: 0 0 35px rgba(56, 189, 248, 0.12);
}

@media (max-width: 900px) {
  .blog-featured-card {
    grid-template-columns: 1fr;
    padding: 28px;
  }
}

.blog-featured-card .blog-card-title {
  font-size: clamp(1.5rem, 2.5vw, 2.1rem);
}

/* ── Single Blog Article Layout ── */
.article-header {
  padding: 130px 0 40px;
  max-width: 860px;
  margin: 0 auto;
}

.article-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

.article-breadcrumb a {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color 0.15s ease;
}

.article-breadcrumb a:hover {
  color: #38bdf8;
}

.article-breadcrumb-sep {
  opacity: 0.5;
}

.article-meta-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}

.article-title {
  font-size: clamp(2.1rem, 4vw, 3.4rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.18;
  color: #ffffff;
  margin-bottom: 24px;
}

.article-intro {
  font-size: clamp(1.1rem, 1.8vw, 1.3rem);
  line-height: 1.65;
  color: #d1d5db;
  margin-bottom: 32px;
}

.article-author-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  padding: 20px 24px;
  background: #111115;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 40px;
}

.author-bio-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.author-bio-img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(56, 189, 248, 0.4);
}

.author-bio-info h4 {
  font-size: 1rem;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 2px;
}

.author-bio-info p {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.article-quick-metrics {
  display: flex;
  align-items: center;
  gap: 18px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

/* ── Article Content Body ── */
.article-container {
  max-width: 860px;
  margin: 0 auto;
  padding-bottom: 80px;
}

.article-body {
  font-size: 1.08rem;
  line-height: 1.85;
  color: #d4d4d8;
}

.article-body p {
  margin-bottom: 24px;
}

.article-body h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 2.5vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #ffffff;
  margin: 50px 0 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.article-body h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: #ffffff;
  margin: 36px 0 16px;
}

.article-body ul,
.article-body ol {
  margin: 0 0 28px 24px;
}

.article-body li {
  margin-bottom: 12px;
  line-height: 1.7;
}

.article-body strong {
  color: #ffffff;
  font-weight: 600;
}

/* ── Callouts & Key Takeaways ── */
.article-callout {
  background: #111115;
  border-left: 4px solid #38bdf8;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 24px 28px;
  margin: 36px 0;
  position: relative;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.article-callout.pink {
  border-left-color: #ee2b6c;
}

.article-callout.green {
  border-left-color: #00cc76;
}

.callout-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.article-callout p:last-child {
  margin-bottom: 0;
}

/* ── Code Blocks & Technical Architecture ── */
.article-code-block {
  background: #09090b;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin: 32px 0;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.6;
  color: #e2e8f0;
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
}

/* ── Data Tables ── */
.article-table-wrap {
  overflow-x: auto;
  margin: 36px 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #111115;
}

.article-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
}

.article-table th {
  background: #16161c;
  color: #ffffff;
  font-weight: 600;
  padding: 14px 18px;
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-display);
}

.article-table td {
  padding: 14px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  color: #d4d4d8;
}

.article-table tr:last-child td {
  border-bottom: none;
}

.article-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* ── Checklist Items ── */
.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
  background: #111115;
  border: 1px solid var(--color-border);
  padding: 16px 20px;
  border-radius: var(--radius-md);
}

.checklist-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 3px;
  color: #00cc76;
}

/* ── High-Converting In-Article CTA ── */
.article-cta-box {
  background: linear-gradient(135deg, #111115 0%, #161622 100%);
  border: 1px solid rgba(56, 189, 248, 0.35);
  border-radius: var(--radius-lg);
  padding: 40px;
  margin: 60px 0 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 30px rgba(56, 189, 248, 0.15);
}

.article-cta-box h3 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 14px;
}

.article-cta-box p {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  max-width: 580px;
  margin: 0 auto 28px;
  line-height: 1.6;
}

/* ── FAQ Section in Blog ── */
.article-faq-section {
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.faq-item-card {
  background: #111115;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 22px 26px;
  margin-bottom: 18px;
}

.faq-item-card h4 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 10px;
}

.faq-item-card p {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin-bottom: 0;
}

/* ── Related Posts Section ── */
.related-posts-section {
  margin-top: 80px;
  padding-top: 50px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.related-posts-section h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 28px;
}

.related-posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

/* ── Responsive adjustments ── */
@media (max-width: 768px) {
  .blog-hub-hero {
    padding: 110px 0 40px;
  }
  .blog-grid {
    grid-template-columns: 1fr;
  }
  .article-header {
    padding: 100px 0 30px;
  }
  .article-title {
    font-size: 1.9rem;
  }
  .article-author-card {
    flex-direction: column;
    align-items: flex-start;
  }
  .article-cta-box {
    padding: 28px 20px;
  }
}