/* ═══════════════════════════════════════════════════════════
   DEVZOOP — Blog Stylesheet
   Futuristic editorial engineering journal styling
   Shared across blog listing and detailed article reading views
   ═══════════════════════════════════════════════════════════ */

/* ── Accessibility & Utilities ─────────────────────────── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ── Blog Hero Section (Listing) ───────────────────────── */
.blog-hero {
  padding-top: calc(64px + var(--sp-xl));
  padding-bottom: var(--sp-lg);
  position: relative;
  overflow: hidden;
}

.blog-hero-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-size: 40px 40px;
  background-image: 
    linear-gradient(to right, rgba(255, 92, 31, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 92, 31, 0.03) 1px, transparent 1px);
  mask-image: radial-gradient(circle at 50% 30%, black 40%, transparent 80%);
  -webkit-mask-image: radial-gradient(circle at 50% 30%, black 40%, transparent 80%);
  z-index: 0;
}

.blog-hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.4fr 0.6fr;
  gap: var(--sp-xl);
  align-items: flex-end;
}

.blog-hero-headline {
  font-family: var(--f-sans);
  font-size: var(--fs-hero);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.035em;
  margin-top: var(--sp-xs);
  margin-bottom: var(--sp-md);
  color: var(--c-text);
}

.blog-hero-description {
  font-size: var(--fs-md);
  color: var(--c-text-muted);
  max-width: 600px;
  line-height: 1.7;
}

/* Metadata Panel in Hero */
.blog-hero-meta-panel {
  background: var(--c-bg-elevated);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: var(--sp-md);
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
  position: relative;
}

.blog-hero-meta-panel::before {
  content: 'FIELD://DEVZOOP.SYS';
  position: absolute;
  top: -10px;
  right: 16px;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--r-sm);
  padding: 1px 8px;
  font-family: var(--f-mono);
  font-size: 9px;
  color: var(--c-accent);
  letter-spacing: 0.1em;
}

.meta-panel-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--f-mono);
  font-size: var(--fs-xs);
}

.meta-panel-label {
  color: var(--c-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.meta-panel-value {
  color: var(--c-text);
  font-weight: 500;
}

.meta-panel-tags {
  display: flex;
  gap: 6px;
}

.meta-panel-divider {
  height: 1px;
  background: var(--c-border-light);
  width: 100%;
}

/* ── Featured Article Card (Listing) ───────────────────── */
.blog-featured {
  padding-top: var(--sp-sm);
  padding-bottom: var(--sp-lg);
}

.featured-card {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  background: var(--c-bg-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  overflow: hidden;
  position: relative;
  transition: border-color var(--duration) var(--ease-out),
              box-shadow var(--duration) var(--ease-out);
}

.featured-card:hover {
  border-color: var(--c-accent);
  box-shadow: var(--shadow-glow);
}

.featured-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--f-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-accent);
  background: rgba(255, 92, 31, 0.12);
  border: 1px solid rgba(255, 92, 31, 0.25);
  padding: 4px 10px;
  border-radius: var(--r-sm);
  margin-bottom: var(--sp-sm);
  align-self: flex-start;
}

.featured-badge::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-accent);
  box-shadow: 0 0 6px var(--c-accent);
  animation: pulse-dot 2s infinite ease-in-out;
}

.featured-content {
  padding: var(--sp-xl) var(--sp-lg);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--sp-md);
}

.featured-title {
  font-family: var(--f-sans);
  font-size: var(--fs-xl);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin-bottom: var(--sp-sm);
  color: var(--c-text);
  transition: color var(--duration) var(--ease-out);
}

.featured-card:hover .featured-title {
  color: #ffffff;
}

.featured-excerpt {
  font-size: var(--fs-md);
  color: var(--c-text-muted);
  line-height: 1.7;
  max-width: 600px;
  margin-bottom: var(--sp-md);
}

.featured-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: var(--sp-md);
}

.featured-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-sm);
  padding-top: var(--sp-md);
  border-top: 1px solid var(--c-border);
}

.featured-meta {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  font-family: var(--f-mono);
  font-size: var(--fs-xs);
  color: var(--c-text-dim);
}

.featured-meta-dot {
  width: 4px;
  height: 4px;
  background: var(--c-border);
  border-radius: 50%;
}

.demo-chip {
  font-family: var(--f-mono);
  font-size: 9px;
  color: var(--c-silver);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--c-border-light);
  padding: 2px 6px;
  border-radius: 2px;
  letter-spacing: 0.05em;
}

/* Featured Technical Visual */
.featured-visual {
  background: var(--c-bg-card);
  border-left: 1px solid var(--c-border);
  padding: var(--sp-lg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.workflow-panel {
  background: var(--c-bg-elevated);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.workflow-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--c-border);
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--c-text-dim);
}

.workflow-dots {
  display: flex;
  gap: 5px;
}

.workflow-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-border);
}

.workflow-dots span:nth-child(1) { background: #ff5f57; }
.workflow-dots span:nth-child(2) { background: #ffbd2e; }
.workflow-dots span:nth-child(3) { background: #28ca42; }

.workflow-body {
  padding: var(--sp-md);
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-family: var(--f-mono);
  font-size: var(--fs-xs);
}

.workflow-step {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--c-border-light);
  border-radius: var(--r-sm);
  transition: all var(--duration) var(--ease-out);
}

.workflow-step.active {
  border-color: rgba(184, 255, 46, 0.4);
  background: rgba(184, 255, 46, 0.04);
}

.workflow-step i {
  font-size: 1rem;
}

.workflow-step.done i {
  color: var(--c-green);
}

.workflow-step.active i {
  color: var(--c-accent);
}

.workflow-step-name {
  color: var(--c-text);
  font-weight: 500;
}

.workflow-step-status {
  margin-left: auto;
  font-size: 10px;
  color: var(--c-text-dim);
}

.workflow-step.done .workflow-step-status {
  color: var(--c-green);
}

/* ── Search & Filter Controls ──────────────────────────── */
.blog-controls {
  padding-top: var(--sp-md);
  padding-bottom: var(--sp-md);
  display: flex;
  flex-direction: column;
  gap: var(--sp-md);
}

.blog-search-wrap {
  position: relative;
  width: 100%;
}

.blog-search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.15rem;
  color: var(--c-text-dim);
  pointer-events: none;
  transition: color var(--duration) var(--ease-out);
}

.blog-search-input {
  width: 100%;
  background: var(--c-bg-elevated);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: 14px 44px 14px 48px;
  font-family: var(--f-mono);
  font-size: var(--fs-sm);
  color: var(--c-text);
  outline: none;
  transition: border-color var(--duration) var(--ease-out),
              box-shadow var(--duration) var(--ease-out);
}

.blog-search-input::placeholder {
  color: var(--c-text-dim);
}

.blog-search-input:focus {
  border-color: var(--c-accent);
  box-shadow: 0 0 0 2px rgba(255, 92, 31, 0.15);
}

.blog-search-input:focus + .blog-search-icon {
  color: var(--c-accent);
}

.blog-search-clear {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--c-text-dim);
  font-size: 1.15rem;
  padding: 4px;
  border-radius: var(--r-sm);
  transition: color var(--duration) var(--ease-out);
}

.blog-search-clear:hover {
  color: var(--c-accent);
}

/* Category Filter Tabs */
.blog-filters {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.blog-filter {
  font-family: var(--f-mono);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 8px 16px;
  border: 1px solid var(--c-border);
  border-radius: var(--r-sm);
  background: var(--c-bg-elevated);
  color: var(--c-text-muted);
  transition: all var(--duration) var(--ease-out);
}

.blog-filter:hover {
  border-color: var(--c-text-dim);
  color: var(--c-text);
}

.blog-filter.active {
  background: var(--c-accent);
  border-color: var(--c-accent);
  color: #000000;
  font-weight: 700;
  box-shadow: 0 0 16px rgba(255, 92, 31, 0.25);
}

.blog-results-info {
  font-family: var(--f-mono);
  font-size: var(--fs-xs);
  color: var(--c-text-dim);
  letter-spacing: 0.04em;
}

/* ── Articles Grid (Listing) ───────────────────────────── */
.blog-listing {
  padding-top: var(--sp-xs);
  padding-bottom: var(--sp-xl);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: var(--sp-lg);
}

.article-card {
  background: var(--c-bg-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color var(--duration) var(--ease-out),
              transform var(--duration) var(--ease-out),
              box-shadow var(--duration) var(--ease-out);
  position: relative;
}

.article-card:hover {
  border-color: var(--c-text-dim);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.article-card-tech-banner {
  height: 90px;
  background: var(--c-bg-card);
  border-bottom: 1px solid var(--c-border);
  padding: var(--sp-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}

.article-card-tech-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background-size: 16px 16px;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
}

.article-code-glyph {
  font-family: var(--f-mono);
  font-size: 2rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.06);
  user-select: none;
  line-height: 1;
}

.article-category-badge {
  font-family: var(--f-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 3px 8px;
  border-radius: var(--r-sm);
  text-transform: uppercase;
  z-index: 1;
}

.article-category-git {
  background: rgba(255, 92, 31, 0.12);
  color: var(--c-accent);
  border: 1px solid rgba(255, 92, 31, 0.25);
}

.article-category-learn {
  background: rgba(184, 255, 46, 0.08);
  color: var(--c-green);
  border: 1px solid rgba(184, 255, 46, 0.2);
}

.article-category-break {
  background: rgba(255, 95, 87, 0.1);
  color: #ff5f57;
  border: 1px solid rgba(255, 95, 87, 0.25);
}

.article-category-build {
  background: rgba(138, 138, 138, 0.12);
  color: var(--c-silver);
  border: 1px solid rgba(138, 138, 138, 0.25);
}

.article-card-body {
  padding: var(--sp-lg) var(--sp-md) var(--sp-md);
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: var(--sp-sm);
}

.article-meta-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--f-mono);
  font-size: var(--fs-xs);
  color: var(--c-text-dim);
}

.article-card-title {
  font-family: var(--f-sans);
  font-size: var(--fs-md);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.015em;
  color: var(--c-text);
  margin-top: 4px;
  transition: color var(--duration) var(--ease-out);
}

.article-card:hover .article-card-title {
  color: #ffffff;
}

.article-card-excerpt {
  font-size: var(--fs-sm);
  color: var(--c-text-muted);
  line-height: 1.65;
  flex: 1;
}

.article-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: var(--sp-xs);
  padding-top: var(--sp-sm);
  border-top: 1px solid var(--c-border-light);
}

.tag-pill {
  font-family: var(--f-mono);
  font-size: 10px;
  color: var(--c-text-dim);
  background: var(--c-bg-elevated);
  border: 1px solid var(--c-border-light);
  padding: 3px 8px;
  border-radius: var(--r-sm);
  letter-spacing: 0.04em;
}

.article-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-sm) var(--sp-md);
  background: var(--c-bg-elevated);
  border-top: 1px solid var(--c-border);
}

.article-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--f-mono);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-accent);
  transition: color var(--duration) var(--ease-out);
}

.article-card:hover .article-card-link {
  color: var(--c-accent-hover);
}

.article-card-link i {
  transition: transform 0.2s var(--ease-out);
}

.article-card:hover .article-card-link i {
  transform: translateX(3px);
}

/* ── Empty State ───────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: var(--sp-2xl) var(--gutter);
  background: var(--c-bg-surface);
  border: 1px dashed var(--c-border);
  border-radius: var(--r-lg);
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-sm);
}

.empty-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(255, 92, 31, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: var(--c-accent);
  margin-bottom: var(--sp-xs);
}

.empty-title {
  font-family: var(--f-sans);
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--c-text);
}

.empty-description {
  font-size: var(--fs-sm);
  color: var(--c-text-muted);
  margin-bottom: var(--sp-sm);
}

/* ── Follow Section (Listing) ──────────────────────────── */
.blog-follow {
  padding-top: var(--sp-md);
  padding-bottom: var(--sp-2xl);
}

.follow-panel {
  background: var(--c-bg-elevated);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: var(--sp-xl) var(--sp-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-xl);
  flex-wrap: wrap;
  position: relative;
  overflow: hidden;
}

.follow-panel::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 250px;
  height: 100%;
  background: radial-gradient(circle at right, rgba(255, 92, 31, 0.08), transparent 70%);
  pointer-events: none;
}

.follow-title {
  font-family: var(--f-sans);
  font-size: var(--fs-lg);
  font-weight: 700;
  margin-bottom: var(--sp-xs);
  letter-spacing: -0.02em;
}

.follow-description {
  font-size: var(--fs-sm);
  color: var(--c-text-muted);
  max-width: 540px;
  line-height: 1.6;
}

.follow-actions {
  display: flex;
  gap: var(--sp-sm);
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

/* ═══════════════════════════════════════════════════════════
   ARTICLE PAGE — REFINED EDITORIAL EXPERIENCE
   ═══════════════════════════════════════════════════════════ */

/* Reading progress bar */
.article-reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: transparent;
  z-index: 10001;
  pointer-events: none;
}

.article-reading-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--c-accent), var(--c-green));
  transition: width 0.1s ease-out;
}

/* Page Container Layout */
.article-container {
  padding-top: calc(64px + var(--sp-lg));
  padding-bottom: var(--sp-2xl);
  max-width: 1240px;
  margin: 0 auto;
}

/* Breadcrumbs */
.article-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--f-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  color: var(--c-text-dim);
  text-transform: uppercase;
  margin-bottom: var(--sp-md);
  flex-wrap: wrap;
}

.article-breadcrumbs a {
  color: var(--c-text-muted);
  transition: color var(--duration) var(--ease-out);
}

.article-breadcrumbs a:hover {
  color: var(--c-accent);
}

.article-breadcrumbs-sep {
  color: var(--c-border);
  user-select: none;
}

.article-breadcrumbs-current {
  color: var(--c-text-dim);
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Article Hero Header */
.article-header {
  margin-bottom: var(--sp-xl);
  padding-bottom: var(--sp-lg);
  border-bottom: 1px solid var(--c-border);
  position: relative;
}

.article-header-meta {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  font-family: var(--f-mono);
  font-size: var(--fs-xs);
  color: var(--c-text-dim);
  margin-bottom: var(--sp-md);
  flex-wrap: wrap;
}

.article-title {
  font-family: var(--f-sans);
  font-size: clamp(2rem, 3.5vw + 1rem, 3.75rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.035em;
  color: var(--c-text);
  margin-bottom: var(--sp-md);
}

.article-lead {
  font-size: var(--fs-md);
  color: var(--c-text-muted);
  line-height: 1.75;
  border-left: 2px solid var(--c-accent);
  padding-left: var(--sp-md);
  margin-bottom: var(--sp-md);
  max-width: 780px;
}

.article-tags-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* Two-Column Reading Layout */
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: var(--sp-2xl);
  align-items: start;
  position: relative;
}

/* Center Article Column */
.article-main-column {
  max-width: 780px;
  width: 100%;
}

.article-body {
  font-size: var(--fs-base);
  line-height: 1.85;
  color: #d8d8dc;
  display: flex;
  flex-direction: column;
  gap: var(--sp-md);
}

.article-body h2 {
  font-family: var(--f-sans);
  font-size: var(--fs-lg);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--c-text);
  margin-top: var(--sp-xl);
  padding-bottom: var(--sp-xs);
  border-bottom: 1px solid var(--c-border-light);
  scroll-margin-top: 100px;
}

.article-body p {
  line-height: 1.8;
}

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

.article-body a {
  color: var(--c-accent);
  border-bottom: 1px dashed rgba(255, 92, 31, 0.4);
  transition: all var(--duration) var(--ease-out);
}

.article-body a:hover {
  color: var(--c-accent-hover);
  border-bottom-style: solid;
}

.article-body code:not([class*="language-"]) {
  font-family: var(--f-mono);
  font-size: 0.88em;
  background: var(--c-bg-elevated);
  border: 1px solid var(--c-border);
  padding: 2px 7px;
  border-radius: var(--r-sm);
  color: var(--c-green);
}

.article-body ul, .article-body ol {
  padding-left: var(--sp-md);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.article-body li {
  line-height: 1.75;
  position: relative;
}

.article-body ul li::marker {
  color: var(--c-accent);
}

/* ── Callout Box ───────────────────────────────────────── */
.article-callout {
  background: var(--c-bg-elevated);
  border: 1px solid var(--c-border);
  border-left: 3px solid var(--c-accent);
  border-radius: var(--r-md);
  padding: var(--sp-md) var(--sp-lg);
  margin: var(--sp-sm) 0;
  position: relative;
}

.article-callout-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--f-mono);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 6px;
}

.article-callout p {
  font-size: var(--fs-sm);
  color: var(--c-text-muted);
  margin: 0;
  line-height: 1.65;
}

/* ── Rich Code Editor Blocks ───────────────────────────── */
.code-editor-block {
  background: #0d0d0f;
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  margin: var(--sp-md) 0;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
  font-family: var(--f-mono);
}

.code-editor-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: #141417;
  border-bottom: 1px solid var(--c-border);
  gap: var(--sp-sm);
}

.code-editor-file {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--c-text);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.code-editor-file i {
  color: var(--c-accent);
  font-size: 14px;
}

.code-editor-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.code-lang-badge {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-text-dim);
  background: rgba(255, 255, 255, 0.04);
  padding: 2px 7px;
  border-radius: var(--r-sm);
  border: 1px solid var(--c-border-light);
}

.code-copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--f-mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--c-text-muted);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--c-border);
  padding: 4px 10px;
  border-radius: var(--r-sm);
  cursor: pointer;
  transition: all var(--duration) var(--ease-out);
}

.code-copy-btn:hover {
  background: var(--c-bg-elevated);
  color: var(--c-text);
  border-color: var(--c-text-dim);
}

.code-copy-btn.copied {
  background: rgba(184, 255, 46, 0.12);
  border-color: var(--c-green);
  color: var(--c-green);
}

.code-editor-body {
  display: flex;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.65;
  background: #0d0d0f;
}

.code-gutter {
  user-select: none;
  text-align: right;
  padding: 16px 14px 16px 16px;
  background: #0a0a0c;
  color: #44444a;
  border-right: 1px solid #1c1c20;
  font-family: inherit;
  font-size: 12px;
}

.code-gutter span {
  display: block;
}

.code-lines-content {
  padding: 16px;
  flex: 1;
  overflow-x: auto;
  margin: 0;
  font-family: inherit;
  white-space: pre;
  color: #d2d2d6;
}

.code-lines-content code {
  font-family: inherit;
  background: transparent !important;
  border: none !important;
  padding: 0 !important;
  color: inherit;
}

/* Syntax Token Colors (Crisp, High Contrast) */
.tok-keyword    { color: #ff7b72; font-weight: 600; }
.tok-string     { color: #a5d6ff; }
.tok-comment    { color: #6e7681; font-style: italic; }
.tok-number     { color: #79c0ff; }
.tok-property   { color: #7ee787; }
.tok-operator   { color: #d2a8ff; }
.tok-variable   { color: #ffa657; }
.tok-tag        { color: #7ee787; }

/* ── Interactive Terminal Component ────────────────────── */
.terminal-block {
  background: #09090b;
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  overflow: hidden;
  margin: var(--sp-md) 0;
  font-family: var(--f-mono);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
}

.terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: #111114;
  border-bottom: 1px solid var(--c-border);
}

.terminal-controls {
  display: flex;
  gap: 6px;
}

.terminal-controls span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}

.terminal-controls span:nth-child(1) { background: #ff5f57; }
.terminal-controls span:nth-child(2) { background: #ffbd2e; }
.terminal-controls span:nth-child(3) { background: #28ca42; }

.terminal-label {
  font-size: 11px;
  color: var(--c-text-dim);
}

.terminal-content {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 13px;
  line-height: 1.6;
}

.terminal-row {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.terminal-cmd-line {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #ffffff;
}

.terminal-prompt-char {
  color: var(--c-green);
  user-select: none;
}

.terminal-output-text {
  color: #8b8b93;
  padding-left: 18px;
  white-space: pre-wrap;
  word-break: break-all;
}

/* ── Workflow Diagram Component ────────────────────────── */
.workflow-diagram-block {
  background: var(--c-bg-elevated);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: var(--sp-lg);
  margin: var(--sp-md) 0;
}

.workflow-diagram-title {
  font-family: var(--f-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: var(--sp-md);
  display: flex;
  align-items: center;
  gap: 8px;
}

.workflow-diagram-title::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-accent);
  box-shadow: 0 0 6px var(--c-accent);
}

.workflow-pipeline-flow {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pipeline-step-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--r-sm);
  position: relative;
  transition: all var(--duration) var(--ease-out);
}

.pipeline-step-item.active {
  border-color: var(--c-accent);
  background: rgba(255, 92, 31, 0.05);
}

.pipeline-step-item.done {
  border-color: rgba(184, 255, 46, 0.3);
}

.pipeline-step-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  color: var(--c-text-muted);
}

.pipeline-step-item.done .pipeline-step-icon {
  background: rgba(184, 255, 46, 0.15);
  color: var(--c-green);
}

.pipeline-step-item.active .pipeline-step-icon {
  background: rgba(255, 92, 31, 0.2);
  color: var(--c-accent);
}

.pipeline-step-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.pipeline-step-label {
  font-family: var(--f-sans);
  font-weight: 600;
  font-size: 14px;
  color: var(--c-text);
}

.pipeline-step-desc {
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--c-text-dim);
}

.pipeline-step-state {
  margin-left: auto;
  font-family: var(--f-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 2px 8px;
  border-radius: var(--r-sm);
}

.pipeline-step-item.done .pipeline-step-state {
  color: var(--c-green);
  background: rgba(184, 255, 46, 0.1);
  border: 1px solid rgba(184, 255, 46, 0.2);
}

.pipeline-step-item.active .pipeline-step-state {
  color: var(--c-accent);
  background: rgba(255, 92, 31, 0.12);
  border: 1px solid rgba(255, 92, 31, 0.3);
}

/* ── Sticky Table of Contents (Sidebar) ────────────────── */
.article-toc-sidebar {
  position: sticky;
  top: 90px;
  background: var(--c-bg-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: var(--sp-md);
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
}

.toc-title {
  font-family: var(--f-mono);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-text-dim);
  display: flex;
  align-items: center;
  gap: 6px;
  padding-bottom: var(--sp-xs);
  border-bottom: 1px solid var(--c-border-light);
}

.toc-title i {
  color: var(--c-accent);
}

.toc-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.toc-link {
  font-family: var(--f-mono);
  font-size: 11px;
  line-height: 1.45;
  color: var(--c-text-muted);
  padding: 4px 8px;
  border-radius: var(--r-sm);
  border-left: 2px solid transparent;
  transition: all var(--duration) var(--ease-out);
  display: block;
}

.toc-link:hover {
  color: var(--c-text);
  background: var(--c-bg-elevated);
}

.toc-link.active {
  color: var(--c-accent);
  border-left-color: var(--c-accent);
  background: rgba(255, 92, 31, 0.06);
  font-weight: 600;
}

/* ── Author Card Section ───────────────────────────────── */
.article-author-card {
  margin-top: var(--sp-xl);
  padding: var(--sp-lg);
  background: var(--c-bg-elevated);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  display: flex;
  align-items: center;
  gap: var(--sp-lg);
}

.author-avatar-wrap {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  border: 2px solid var(--c-border);
  overflow: hidden;
  flex-shrink: 0;
}

.author-avatar-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.author-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.author-name {
  font-family: var(--f-sans);
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--c-text);
}

.author-role {
  font-family: var(--f-mono);
  font-size: var(--fs-xs);
  color: var(--c-accent);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.author-bio {
  font-size: var(--fs-sm);
  color: var(--c-text-muted);
  line-height: 1.6;
  margin-top: 4px;
}

/* ── Adjacent Articles (Prev/Next) ─────────────────────── */
.article-nav-row {
  margin-top: var(--sp-xl);
  padding-top: var(--sp-lg);
  border-top: 1px solid var(--c-border);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-md);
}

.article-nav-card {
  background: var(--c-bg-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: var(--sp-md);
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: all var(--duration) var(--ease-out);
}

.article-nav-card:hover {
  border-color: var(--c-accent);
  transform: translateY(-2px);
}

.article-nav-direction {
  font-family: var(--f-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-accent);
  display: flex;
  align-items: center;
  gap: 4px;
}

.article-nav-title {
  font-family: var(--f-sans);
  font-size: 14px;
  font-weight: 600;
  color: var(--c-text);
  line-height: 1.35;
}

.article-nav-next {
  text-align: right;
  align-items: flex-end;
}

.article-nav-card.disabled {
  opacity: 0.3;
  pointer-events: none;
}

/* ── Related Articles Section ──────────────────────────── */
.article-related-section {
  margin-top: var(--sp-2xl);
  padding-top: var(--sp-xl);
  border-top: 1px solid var(--c-border);
}

.related-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--sp-lg);
  flex-wrap: wrap;
  gap: var(--sp-sm);
}

.related-title {
  font-family: var(--f-sans);
  font-size: var(--fs-lg);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--sp-lg);
}

/* ── Responsive Rules ──────────────────────────────────── */
@media (max-width: 1100px) {
  .article-layout {
    grid-template-columns: 1fr;
    gap: var(--sp-xl);
  }

  .article-toc-sidebar {
    position: relative;
    top: 0;
    max-width: 100%;
  }

  .article-main-column {
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  .blog-hero-content {
    grid-template-columns: 1fr;
    gap: var(--sp-lg);
  }

  .featured-card {
    grid-template-columns: 1fr;
  }

  .featured-visual {
    border-left: none;
    border-top: 1px solid var(--c-border);
  }

  .articles-grid {
    grid-template-columns: 1fr;
  }

  .article-nav-row {
    grid-template-columns: 1fr;
  }

  .article-nav-next {
    text-align: left;
    align-items: flex-start;
  }

  .article-author-card {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }

  .follow-panel {
    flex-direction: column;
    align-items: flex-start;
  }

  .code-editor-header {
    flex-wrap: wrap;
  }
}

@media (max-width: 480px) {
  .article-title {
    font-size: 1.85rem;
  }

  .article-breadcrumbs-current {
    max-width: 160px;
  }

  .code-lines-content {
    padding: 12px;
    font-size: 12px;
  }

  .code-gutter {
    padding: 12px 8px;
    font-size: 11px;
  }
}