/* Blog Specific Styling — theTechMentor */
:root {
  --blog-bg: #0a0f14;
  --blog-card-bg: #111822;
  --blog-card-border: #1e293b;
  --blog-text: #e2e8f0;
  --blog-muted: #94a3b8;
  --blog-accent: #0070b8;
  --blog-accent-light: #38bdf8;
  --blog-gold: #f59e0b;
  --blog-green: #10b981;
  --blog-purple: #a855f7;
}

/* Reading Progress Bar */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--blog-accent), var(--blog-accent-light), var(--blog-gold));
  z-index: 1000;
  transition: width 0.1s ease;
}

/* Blog Layout Container */
.blog-article-wrap {
  padding-top: 100px;
  padding-bottom: 80px;
  width: min(880px, 92vw);
  margin: 0 auto;
}

.blog-header {
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--blog-card-border);
  padding-bottom: 2rem;
}

.blog-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--blog-muted);
  margin-bottom: 1.25rem;
}

.blog-breadcrumb a {
  color: var(--blog-accent-light);
  text-decoration: none;
}

.blog-breadcrumb a:hover {
  text-decoration: underline;
}

.blog-title {
  font-size: clamp(1.85rem, 4vw, 2.75rem);
  font-weight: 800;
  line-height: 1.25;
  color: #fff;
  margin-bottom: 1.25rem;
}

.blog-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  font-size: 0.9rem;
  color: var(--blog-muted);
}

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

.author-chip img, .author-avatar-ph {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blog-accent), var(--blog-purple));
  display: grid;
  place-items: center;
  font-weight: 700;
  color: #fff;
  font-size: 0.9rem;
}

.author-chip .author-info strong {
  color: #fff;
  display: block;
}

.author-chip .author-info span {
  font-size: 0.8rem;
  color: var(--blog-muted);
}

/* Article Body Content */
.article-content {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--blog-text);
}

.article-content h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: #fff;
  margin-top: 3rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--blog-card-border);
}

.article-content h3 {
  font-size: 1.35rem;
  font-weight: 600;
  color: #f1f5f9;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.article-content p {
  margin-bottom: 1.5rem;
}

.article-content ul, .article-content ol {
  margin-bottom: 1.5rem;
  padding-left: 1.75rem;
}

.article-content li {
  margin-bottom: 0.6rem;
}

.article-content blockquote {
  border-left: 4px solid var(--blog-accent-light);
  background: rgba(56, 189, 248, 0.07);
  padding: 1.25rem 1.5rem;
  border-radius: 0 8px 8px 0;
  margin: 2rem 0;
  font-style: italic;
  color: #cbd5e1;
}

.article-content code {
  background: rgba(255, 255, 255, 0.08);
  color: var(--blog-accent-light);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.95em;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.article-content pre {
  background: #06090e;
  border: 1px solid var(--blog-card-border);
  padding: 1.25rem;
  border-radius: 8px;
  overflow-x: auto;
  margin: 1.75rem 0;
}

.article-content pre code {
  background: transparent;
  padding: 0;
  color: #e2e8f0;
}

/* Callout Box */
.callout-box {
  background: linear-gradient(135deg, rgba(0, 112, 184, 0.12), rgba(168, 85, 247, 0.12));
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: 10px;
  padding: 1.5rem;
  margin: 2.25rem 0;
}

.callout-box h4 {
  color: #fff;
  font-size: 1.15rem;
  margin-bottom: 0.6rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Table of Contents */
.toc-box {
  background: var(--blog-card-bg);
  border: 1px solid var(--blog-card-border);
  border-radius: 10px;
  padding: 1.5rem;
  margin: 2rem 0 2.5rem 0;
}

.toc-box h3 {
  font-size: 1.1rem;
  color: #fff;
  margin: 0 0 1rem 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.toc-list li {
  margin-bottom: 0.5rem;
}

.toc-list a {
  color: var(--blog-muted);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s;
}

.toc-list a:hover {
  color: var(--blog-accent-light);
  padding-left: 4px;
}

/* Embedded Course CTA in Blog */
.blog-course-cta {
  background: linear-gradient(135deg, #131d2a, #1b2636);
  border: 1px solid rgba(245, 158, 11, 0.4);
  border-radius: 12px;
  padding: 2rem;
  margin: 3rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.blog-course-cta h3 {
  color: #fff;
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.blog-course-cta p {
  color: #cbd5e1;
  font-size: 1rem;
  max-width: 600px;
  margin: 0 auto 1.5rem auto;
}

.blog-cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

/* ========================================================
   Comments & Community Q&A System Styles
   ======================================================== */
.comments-section {
  margin-top: 4.5rem;
  padding-top: 3rem;
  border-top: 2px solid var(--blog-card-border);
}

.comments-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.comments-header h3 {
  font-size: 1.6rem;
  color: #fff;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.comments-count-badge {
  background: var(--blog-card-border);
  color: var(--blog-accent-light);
  font-size: 0.9rem;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
}

.comment-form-card {
  background: var(--blog-card-bg);
  border: 1px solid var(--blog-card-border);
  border-radius: 12px;
  padding: 1.75rem;
  margin-bottom: 2.5rem;
}

.comment-form-title {
  color: #fff;
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

@media (max-width: 600px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

.comment-input, .comment-textarea {
  width: 100%;
  background: #080d13;
  border: 1px solid var(--blog-card-border);
  border-radius: 8px;
  padding: 0.85rem 1rem;
  color: #fff;
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.comment-input:focus, .comment-textarea:focus {
  outline: none;
  border-color: var(--blog-accent-light);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
}

.comment-textarea {
  min-height: 110px;
  resize: vertical;
  margin-bottom: 1rem;
}

.comment-form-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.comment-submit-btn {
  background: var(--blog-accent);
  color: #fff;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
}

.comment-submit-btn:hover {
  background: #0284c7;
}

.comment-submit-btn:active {
  transform: scale(0.98);
}

/* Discussion Thread List */
.comments-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.comment-item {
  background: var(--blog-card-bg);
  border: 1px solid var(--blog-card-border);
  border-radius: 12px;
  padding: 1.5rem;
  transition: border-color 0.2s;
}

.comment-item:hover {
  border-color: #334155;
}

.comment-item-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.85rem;
}

.comment-user-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #1e293b;
  color: #38bdf8;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 0.95rem;
}

.user-avatar.instructor-avatar {
  background: linear-gradient(135deg, #0070b8, #f59e0b);
  color: #fff;
}

.user-meta strong {
  color: #fff;
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.instructor-badge-tag {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #000;
  font-size: 0.7rem;
  font-weight: 800;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.comment-time {
  font-size: 0.8rem;
  color: var(--blog-muted);
}

.comment-body {
  color: #cbd5e1;
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 1rem;
}

.comment-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.875rem;
}

.comment-vote-btn {
  background: transparent;
  border: 1px solid var(--blog-card-border);
  color: var(--blog-muted);
  border-radius: 6px;
  padding: 0.35rem 0.75rem;
  font-size: 0.85rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.2s;
}

.comment-vote-btn:hover, .comment-vote-btn.voted {
  background: rgba(56, 189, 248, 0.15);
  border-color: var(--blog-accent-light);
  color: var(--blog-accent-light);
}

.reply-btn {
  background: transparent;
  border: none;
  color: var(--blog-accent-light);
  cursor: pointer;
  font-weight: 500;
}

.reply-btn:hover {
  text-decoration: underline;
}

/* Nested Replies */
.replies-container {
  margin-top: 1.25rem;
  padding-left: 1.5rem;
  border-left: 2px solid var(--blog-card-border);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.reply-item {
  background: #0a0f14;
  border: 1px solid var(--blog-card-border);
  border-radius: 8px;
  padding: 1.15rem;
}

/* Reply Box inline */
.reply-input-box {
  margin-top: 1rem;
  padding: 1rem;
  background: #080d13;
  border: 1px solid var(--blog-card-border);
  border-radius: 8px;
}