/* ================================================================
   Blog — Archive & Single Post
   Modern, typography-focused, no featured images required
   ================================================================ */

/* ── Archive Page ─────────────────────────────────────────── */
.blog-archive {
  padding: 32px 0 64px;
}

/* Top bar: search + view toggle + sort */
.blog-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.blog-topbar-left {
  flex: 1;
  min-width: 220px;
  max-width: 500px;
}

.blog-search-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--white, #fff);
  border: 1px solid var(--border, #e5e7eb);
  border-radius: 10px;
  padding: 0 14px;
  height: 44px;
  color: var(--gray-400, #9ca3af);
  transition: border-color .2s, box-shadow .2s;
}

.blog-search-wrap:focus-within {
  border-color: var(--primary, #6c63ff);
  box-shadow: 0 0 0 3px rgba(108,99,255,.12);
  color: var(--gray-600, #6b7280);
}

.blog-search-input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-size: 14px;
  color: var(--text, #1e293b);
  padding: 0;
}

.blog-search-input::placeholder {
  color: var(--gray-400, #9ca3af);
}

.blog-topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.blog-view-toggle {
  display: flex;
  border: 1px solid var(--border, #e5e7eb);
  border-radius: 8px;
  overflow: hidden;
}

.bvt-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: none;
  background: var(--white, #fff);
  cursor: pointer;
  color: var(--gray-400, #9ca3af);
  transition: background .15s, color .15s;
  border-right: 1px solid var(--border, #e5e7eb);
}

.bvt-btn:last-child {
  border-right: none;
}

.bvt-btn.active,
.bvt-btn:hover {
  background: var(--primary, #6c63ff);
  color: #fff;
}

.blog-sort-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border, #e5e7eb);
  border-radius: 8px;
  padding: 0 12px;
  height: 36px;
  background: var(--white, #fff);
  color: var(--gray-500, #6b7280);
}

.blog-sort-select {
  border: none;
  outline: none;
  background: transparent;
  font-size: 13px;
  font-weight: 500;
  color: var(--text, #1e293b);
  cursor: pointer;
  padding: 0;
  appearance: none;
  -webkit-appearance: none;
}

/* ── Category tabs ────────────────────────────────────────── */
.blog-cat-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.bct-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  color: var(--gray-500, #6b7280);
  background: var(--surface, #f8f9fb);
  border: 1.5px solid transparent;
  transition: all .18s;
  cursor: pointer;
}

.bct-pill:hover {
  background: var(--primary-light, #f0effe);
  color: var(--primary, #6c63ff);
  border-color: var(--primary-light, #d4d0fd);
}

.bct-pill.active {
  background: var(--primary, #6c63ff);
  color: #fff;
  border-color: var(--primary, #6c63ff);
}

.bct-count {
  font-size: 11px;
  font-weight: 700;
  opacity: .75;
}

/* ── Post Cards ───────────────────────────────────────────── */
.blog-posts-grid {
  display: grid;
  gap: 20px;
}

/* Grid View */
.blog-posts-grid[data-view="grid"] {
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
}

/* List View */
.blog-posts-grid[data-view="list"] {
  grid-template-columns: 1fr;
}

.blog-posts-grid[data-view="list"] .bpost-card-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto 1fr;
  gap: 0 24px;
  align-items: start;
}

.blog-posts-grid[data-view="list"] .bpost-meta-top {
  grid-column: 1;
}

.blog-posts-grid[data-view="list"] .bpost-title {
  grid-column: 1;
}

.blog-posts-grid[data-view="list"] .bpost-excerpt {
  -webkit-line-clamp: 2;
  margin-bottom: 0;
}

.blog-posts-grid[data-view="list"] .bpost-footer {
  grid-column: 2;
  grid-row: 1 / 4;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: center;
  gap: 12px;
  padding-top: 0;
  border-top: none;
  min-width: 160px;
  align-self: center;
}

/* Compact View */
.blog-posts-grid[data-view="compact"] {
  grid-template-columns: 1fr;
  gap: 0;
}

.blog-posts-grid[data-view="compact"] .bpost-card {
  border-radius: 0;
  border: none;
  border-bottom: 1px solid var(--border, #e5e7eb);
  background: transparent;
  box-shadow: none;
}

.blog-posts-grid[data-view="compact"] .bpost-card:first-child {
  border-top: 1px solid var(--border, #e5e7eb);
}

.blog-posts-grid[data-view="compact"] .bpost-card-inner {
  display: grid;
  grid-template-columns: 80px 1fr auto auto;
  align-items: center;
  gap: 0 16px;
  padding: 14px 4px;
}

.blog-posts-grid[data-view="compact"] .bpost-meta-top {
  grid-column: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin: 0;
}

.blog-posts-grid[data-view="compact"] .bpost-sep,
.blog-posts-grid[data-view="compact"] .bpost-diff {
  display: none;
}

.blog-posts-grid[data-view="compact"] .bpost-title {
  grid-column: 2;
  font-size: 15px;
  -webkit-line-clamp: 1;
  margin: 0;
}

.blog-posts-grid[data-view="compact"] .bpost-excerpt {
  display: none;
}

.blog-posts-grid[data-view="compact"] .bpost-footer {
  grid-column: 3;
  padding: 0;
  border: none;
  flex-direction: row;
  align-items: center;
  gap: 12px;
}

.blog-posts-grid[data-view="compact"] .bpost-footer .bpost-stats {
  flex-direction: row;
}

.blog-posts-grid[data-view="compact"] .bpost-actions {
  grid-column: 4;
}

.bpost-card {
  background: var(--white, #fff);
  border: 1px solid var(--border, #e5e7eb);
  border-radius: 14px;
  overflow: hidden;
  transition: transform .2s, box-shadow .2s;
}

.bpost-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,.07);
}

.bpost-card::before {
  content: '';
  display: block;
  height: 3px;
  background: linear-gradient(90deg, var(--primary, #6c63ff), #a78bfa);
}

.bpost-card-inner {
  padding: 22px 24px 20px;
}

.bpost-meta-top {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.bpost-date {
  font-size: 12px;
  color: var(--gray-400, #9ca3af);
  font-variant-numeric: tabular-nums;
}

.bpost-sep {
  font-size: 12px;
  color: var(--gray-300, #d1d5db);
}

.bpost-cat {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .6px;
  color: var(--gray-500, #64748b);
  text-decoration: none;
  transition: color .15s;
}

.bpost-cat:hover {
  color: var(--primary, #6c63ff);
}

.bpost-diff {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 9px;
  border-radius: 999px;
  border: 1px solid;
}

.diff-beginner {
  color: #16a34a;
  background: #f0fdf4;
  border-color: #bbf7d0;
}

.diff-intermediate {
  color: #d97706;
  background: #fffbeb;
  border-color: #fde68a;
}

.diff-advanced {
  color: #dc2626;
  background: #fff1f2;
  border-color: #fecdd3;
}

.bpost-title {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  margin: 0 0 10px;
  color: var(--text, #0f172a);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.bpost-title a {
  text-decoration: none;
  color: inherit;
  transition: color .15s;
}

.bpost-title a:hover {
  color: var(--primary, #6c63ff);
}

.bpost-excerpt {
  font-size: 14px;
  line-height: 1.65;
  color: var(--gray-500, #64748b);
  margin: 0 0 16px;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.bpost-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 14px;
  border-top: 1px solid var(--border-light, #f1f5f9);
  flex-wrap: wrap;
}

.bpost-stats {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.bpost-stat {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--gray-400, #9ca3af);
}

.bpost-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.bpost-bookmark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--border, #e5e7eb);
  border-radius: 7px;
  background: transparent;
  cursor: pointer;
  color: var(--gray-400, #9ca3af);
  transition: all .15s;
}

.bpost-bookmark:hover,
.bpost-bookmark.bookmarked {
  background: var(--primary, #6c63ff);
  border-color: var(--primary, #6c63ff);
  color: #fff;
}

.bpost-bookmark.bookmarked svg {
  fill: #fff;
}

.bpost-read-btn {
  display: inline-flex;
  align-items: center;
  padding: 7px 14px;
  border-radius: 8px;
  background: var(--text, #0f172a);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .6px;
  text-decoration: none;
  transition: background .15s, transform .15s;
  white-space: nowrap;
}

.bpost-read-btn:hover {
  background: var(--primary, #6c63ff);
  transform: translateY(-1px);
}

/* ── Pagination ───────────────────────────────────────────── */
.blog-pagination {
  display: flex;
  justify-content: center;
  gap: 6px;
  padding: 40px 0 0;
}

.blog-pagination a,
.blog-pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 38px;
  padding: 0 12px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--border, #e5e7eb);
  color: var(--gray-500, #64748b);
  transition: all .15s;
}

.blog-pagination a:hover {
  background: var(--surface, #f8f9fb);
}

.blog-pagination .current {
  background: var(--primary, #6c63ff);
  color: #fff;
  border-color: var(--primary, #6c63ff);
}

/* ── Empty State ─────────────────────────────────────────── */
.blog-empty {
  text-align: center;
  padding: 80px 20px;
  color: var(--gray-300, #d1d5db);
}

.blog-empty svg {
  margin-bottom: 16px;
  opacity: .4;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.blog-empty p {
  font-size: 15px;
  color: var(--gray-400, #94a3b8);
  margin: 0;
}

/* ================================================================
   Single Post Page
   ================================================================ */
.single-post-wrap {
  padding: 48px 0 80px;
}

.single-post {
  max-width: 740px;
  margin: 0 auto;
}

.spost-header {
  margin-bottom: 40px;
}

.spost-category {
  display: inline-block;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--primary, #6c63ff);
  text-decoration: none;
  margin-bottom: 14px;
}

.spost-category:hover {
  text-decoration: underline;
}

.spost-title {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -.5px;
  color: var(--text, #0f172a);
  margin: 0 0 24px;
  text-align: left;
}

.spost-meta-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border, #e5e7eb);
}

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

.spost-author-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--primary, #6c63ff);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.spost-author-info {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.spost-author-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text, #0f172a);
}

.spost-author-prof {
  font-size: 12px;
  color: var(--gray-400, #94a3b8);
}

.spost-meta-stats {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--gray-400, #94a3b8);
  margin-left: auto;
}

.spost-meta-sep {
  opacity: .5;
}

.spost-bookmark-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border: 1.5px solid var(--border, #e5e7eb);
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .6px;
  color: var(--gray-500, #64748b);
  transition: all .15s;
  flex-shrink: 0;
}

.spost-bookmark-btn:hover,
.spost-bookmark-btn.bookmarked {
  background: var(--primary, #6c63ff);
  border-color: var(--primary, #6c63ff);
  color: #fff;
}

.spost-bookmark-btn.bookmarked svg {
  fill: #fff;
}

/* Content */
.spost-content {
  font-size: 17px;
  line-height: 1.85;
  color: var(--text-muted, #374151);
  padding: 0;
}

.spost-content h1,
.spost-content h2,
.spost-content h3,
.spost-content h4 {
  color: var(--text, #0f172a);
  margin-top: 2.2em;
  margin-bottom: .6em;
  line-height: 1.3;
  font-weight: 700;
}

.spost-content h2 { font-size: 26px }
.spost-content h3 { font-size: 21px }
.spost-content h4 { font-size: 18px }

.spost-content p {
  margin: 0 0 1.6em;
}

.spost-content img {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  margin: 1.5em 0;
}

.spost-content a {
  color: var(--primary, #6c63ff);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.spost-content blockquote {
  margin: 2em 0;
  padding: 18px 24px;
  border-left: 4px solid var(--primary, #6c63ff);
  background: var(--surface, #f8f9fb);
  border-radius: 0 10px 10px 0;
  font-style: italic;
  color: var(--gray-600, #475569);
}

.spost-content ul,
.spost-content ol {
  padding-left: 1.6em;
  margin-bottom: 1.6em;
}

.spost-content li {
  margin-bottom: .6em;
}

.spost-content pre {
  background: #1e293b;
  color: #e2e8f0;
  padding: 22px;
  border-radius: 12px;
  overflow-x: auto;
  font-size: 14px;
  line-height: 1.65;
  margin: 2em 0;
}

.spost-content code {
  font-family: 'SF Mono', 'Cascadia Code', monospace;
  font-size: .88em;
  background: var(--surface, #f1f5f9);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--primary, #6c63ff);
}

.spost-content pre code {
  background: none;
  padding: 0;
  color: inherit;
  font-size: inherit;
}

.spost-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.8em 0;
}

.spost-content th,
.spost-content td {
  padding: 10px 14px;
  border: 1px solid var(--border, #e5e7eb);
  text-align: left;
}

.spost-content th {
  background: var(--surface, #f8fafc);
  font-weight: 600;
}

/* Footer tags */
.spost-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  padding-top: 32px;
  border-top: 1px solid var(--border, #e5e7eb);
}

.spost-tag-pill {
  display: inline-flex;
  align-items: center;
  padding: 5px 13px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: var(--surface, #f1f5f9);
  color: var(--gray-500, #64748b);
  text-decoration: none;
  border: 1px solid var(--border, #e5e7eb);
  transition: all .15s;
}

.spost-tag-pill:hover {
  background: var(--primary, #6c63ff);
  color: #fff;
  border-color: var(--primary, #6c63ff);
}

.spost-back-link {
  margin-left: auto;
}

/* Related Posts */
.related-posts {
  max-width: 1180px;
  margin: 64px auto 0;
}

.related-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text, #0f172a);
  margin: 0 0 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border, #e5e7eb);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

/* ── Dark Mode ────────────────────────────────────────────── */
[data-theme="dark"] .blog-search-wrap,
[data-theme="dark"] .blog-sort-wrap,
[data-theme="dark"] .blog-view-toggle,
[data-theme="dark"] .bvt-btn {
  background: var(--dark-surface, #161b2e);
  border-color: var(--dark-border, #1e2a45);
}

[data-theme="dark"] .blog-search-input,
[data-theme="dark"] .blog-sort-select {
  color: var(--dark-text, #e2e8f0);
}

[data-theme="dark"] .bct-pill {
  background: var(--dark-surface, #161b2e);
  color: var(--dark-muted, #8892b0);
}

[data-theme="dark"] .bct-pill:hover {
  background: rgba(108,99,255,.15);
  color: var(--primary, #6c63ff);
}

[data-theme="dark"] .bpost-card {
  background: var(--dark-card, #141422);
  border-color: var(--dark-border, #1e2a45);
}

[data-theme="dark"] .bpost-title { color: var(--dark-text, #e2e8f0) }
[data-theme="dark"] .bpost-excerpt { color: var(--dark-muted, #8892b0) }
[data-theme="dark"] .bpost-footer { border-top-color: var(--dark-border, #1e2a45) }
[data-theme="dark"] .bpost-read-btn { background: var(--dark-text, #e2e8f0); color: #0f172a }
[data-theme="dark"] .bpost-read-btn:hover { background: var(--primary, #6c63ff); color: #fff }
[data-theme="dark"] .bpost-bookmark { border-color: var(--dark-border, #1e2a45); color: var(--dark-muted, #8892b0) }

[data-theme="dark"] .spost-title { color: var(--dark-text, #f1f5f9) }
[data-theme="dark"] .spost-meta-row { border-color: var(--dark-border, #1e2a45) }
[data-theme="dark"] .spost-author-name { color: var(--dark-text, #e2e8f0) }
[data-theme="dark"] .spost-content { color: var(--dark-muted2, #94a3b8) }
[data-theme="dark"] .spost-content h1,
[data-theme="dark"] .spost-content h2,
[data-theme="dark"] .spost-content h3,
[data-theme="dark"] .spost-content h4 { color: var(--dark-text, #f1f5f9) }
[data-theme="dark"] .spost-content blockquote { background: var(--dark-surface, #161b2e) }
[data-theme="dark"] .spost-content code { background: #1e2a45; color: #a78bfa }
[data-theme="dark"] .spost-footer { border-color: var(--dark-border, #1e2a45) }
[data-theme="dark"] .spost-tag-pill { background: var(--dark-surface, #161b2e); border-color: var(--dark-border, #1e2a45); color: var(--dark-muted, #8892b0) }
[data-theme="dark"] .related-title { color: var(--dark-text, #f1f5f9); border-color: var(--dark-border, #1e2a45) }

[data-theme="dark"] .blog-posts-grid[data-view="compact"] .bpost-card {
  border-color: var(--dark-border, #1e2a45);
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 768px) {
  .blog-topbar { flex-direction: column; align-items: stretch; }
  .blog-topbar-left { max-width: 100%; }
  .blog-topbar-right { justify-content: space-between; }
  .blog-posts-grid[data-view="grid"] { grid-template-columns: 1fr; }
  .blog-posts-grid[data-view="list"] .bpost-card-inner { grid-template-columns: 1fr; }
  .blog-posts-grid[data-view="list"] .bpost-footer { grid-column: 1; grid-row: auto; flex-direction: row; border-top: 1px solid var(--border, #e5e7eb); padding-top: 14px; }
  .spost-title { font-size: 26px; }
  .spost-content { font-size: 16px; }
  .single-post-wrap { padding: 24px 0 48px; }
  .spost-header { margin-bottom: 20px; }
  .spost-meta-row { gap: 10px; }
  .spost-meta-stats { margin-left: 0; }
  .related-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .blog-posts-grid[data-view="compact"] .bpost-card-inner { grid-template-columns: 60px 1fr; grid-template-rows: auto auto; }
  .blog-posts-grid[data-view="compact"] .bpost-footer { display: none; }
  .blog-posts-grid[data-view="compact"] .bpost-actions { grid-column: 2; grid-row: 2; }
}