/* =========================================
   Blog — shared styles
   blog.html + blog/*.html
   ========================================= */

/* -------- Blog Hero -------- */
.blog-hero {
  padding: calc(var(--nav-height) + 4rem) 0 3rem;
  border-bottom: 1px solid var(--border);
}

.blog-hero .label { margin-bottom: 1rem; }

.blog-hero__title {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 5vw, 3.2rem);
  color: var(--text);
  margin-bottom: 1rem;
}

.blog-hero__desc {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  margin: 0;
}

/* -------- Category Filter -------- */
.blog-filter {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
  position: sticky;
  top: var(--nav-height);
  z-index: 10;
}

.blog-filter__pills {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.filter-pill {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  padding: 0.35rem 0.85rem;
  border: 1px solid var(--border);
  background: transparent;
  cursor: pointer;
  transition: var(--ease);
  text-transform: uppercase;
}

.filter-pill:hover {
  color: var(--accent);
  border-color: var(--accent-border);
}

.filter-pill--active {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(0, 255, 65, 0.04);
}

/* -------- Blog Main -------- */
.blog-main {
  padding: 4rem 0 6rem;
}

/* -------- Blog Card -------- */
.blog-card {
  border: 1px solid var(--border);
  padding: 2rem;
  background: var(--bg-alt);
  transition: border-color var(--ease), background var(--ease);
}

.blog-card:hover {
  border-color: var(--accent-border);
  background: var(--bg-card);
}

.blog-card--featured {
  border-color: var(--accent-border);
  background: #0c1a0e;
  padding: 2.5rem;
  margin-bottom: 2rem;
}

.blog-card--featured:hover { background: #0f1e11; }

/* -------- Card Meta -------- */
.blog-card__meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.blog-card__cat {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.18rem 0.5rem;
  border: 1px solid var(--accent-border);
  background: rgba(0, 255, 65, 0.05);
}

.blog-card__date,
.blog-card__read {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}

.blog-card__date::before { content: '// '; }

/* -------- Card Title -------- */
.blog-card__title {
  font-family: var(--font-mono);
  font-size: clamp(0.95rem, 1.5vw, 1.15rem);
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
  margin-bottom: 0.875rem;
}

.blog-card--featured .blog-card__title {
  font-size: clamp(1.1rem, 2vw, 1.5rem);
}

.blog-card__title a {
  color: inherit;
  transition: color var(--ease);
}

.blog-card__title a:hover { color: var(--accent); }

/* -------- Card Excerpt -------- */
.blog-card__excerpt {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

/* -------- Card Link -------- */
.blog-card__link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.04em;
  transition: opacity var(--ease);
  display: inline-block;
}

.blog-card__link:hover { opacity: 0.7; }

.blog-card__link--soon {
  color: var(--text-dim);
  cursor: default;
}

/* -------- Blog Grid -------- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.blog-grid .blog-card {
  border: none;
}

/* -------- Blog CTA Banner -------- */
.blog-cta {
  padding: 5rem 0;
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
}

.blog-cta__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.blog-cta__inner .label { margin-bottom: 0.75rem; }

.blog-cta__title {
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 3vw, 2rem);
  color: var(--text);
  margin-bottom: 0.5rem;
}

.blog-cta__inner p {
  margin: 0;
  font-size: 0.9rem;
}

/* =========================================
   Article page
   ========================================= */

.article-main {
  padding-top: calc(var(--nav-height) + 3rem);
  padding-bottom: 6rem;
}

/* -------- Breadcrumb -------- */
.breadcrumb { margin-bottom: 2.5rem; }

.breadcrumb__list {
  display: flex;
  gap: 0;
  list-style: none;
  align-items: center;
  flex-wrap: wrap;
}

.breadcrumb__list li {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-dim);
}

.breadcrumb__list li + li::before {
  content: ' › ';
  margin: 0 0.4rem;
  color: var(--text-dim);
}

.breadcrumb__list a {
  color: var(--text-secondary);
  transition: color var(--ease);
}

.breadcrumb__list a:hover { color: var(--accent); }
.breadcrumb__list [aria-current="page"] { color: var(--accent); }

/* -------- Article Header -------- */
.article-header {
  margin-bottom: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--border);
}

.article-header .blog-card__meta { margin-bottom: 1.5rem; }

.article-header__title {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3.5vw, 2.3rem);
  color: var(--text);
  line-height: 1.25;
  margin-bottom: 1.25rem;
}

.article-header__lead {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin: 0;
}

/* -------- Table of Contents -------- */
.toc {
  border: 1px solid var(--border);
  padding: 1.5rem;
  margin-bottom: 3rem;
  background: var(--bg-alt);
}

.toc__title {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.toc__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  counter-reset: toc;
}

.toc__list li {
  counter-increment: toc;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  display: flex;
  gap: 0.75rem;
  align-items: baseline;
}

.toc__list li::before {
  content: counter(toc, decimal-leading-zero) '.';
  color: var(--accent);
  flex-shrink: 0;
  font-size: 0.65rem;
  opacity: 0.55;
}

.toc__list a {
  color: var(--text-secondary);
  transition: color var(--ease);
}

.toc__list a:hover { color: var(--accent); }

/* -------- Article Body -------- */
.article-body {
  font-size: 0.96rem;
  line-height: 1.8;
}

.article-body section {
  margin-bottom: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--border);
}

.article-body section:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.article-body h2 {
  font-size: clamp(1.1rem, 2vw, 1.45rem);
  color: var(--text);
  margin-bottom: 1.25rem;
}

.article-body h3 {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.article-body p {
  margin-bottom: 1.25rem;
  color: var(--text-secondary);
}

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

/* -------- Code Block -------- */
.code-block {
  background: #050505;
  border: 1px solid var(--border);
  margin: 1.5rem 0;
  overflow-x: auto;
}

.code-block__label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--accent);
  opacity: 0.55;
  letter-spacing: 0.08em;
  padding: 0.55rem 1rem;
  border-bottom: 1px solid var(--border);
  background: #0a0a0a;
}

.code-block pre {
  padding: 1.25rem 1rem;
  margin: 0;
  overflow-x: auto;
}

.code-block code {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: #00cc33;
  line-height: 1.75;
  white-space: pre;
}

/* -------- Callout -------- */
.article-callout {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  background: rgba(0, 255, 65, 0.03);
  border: 1px solid var(--accent-border);
  border-left: 3px solid var(--accent);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
}

.article-callout__icon {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.9rem;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.article-callout p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* -------- Dash List -------- */
.article-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin: 1rem 0 1.25rem;
}

.article-list li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding-left: 1.5rem;
  position: relative;
  line-height: 1.65;
}

.article-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-family: var(--font-mono);
}

/* -------- Checklist -------- */
.article-checklist {
  list-style: none;
  border: 1px solid var(--border);
  margin: 1.25rem 0;
}

.article-checklist li {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 0.875rem 1.25rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  transition: background var(--ease);
}

.article-checklist li:last-child { border-bottom: none; }
.article-checklist li:hover { background: var(--bg-card); }

.article-checklist__icon {
  font-family: var(--font-mono);
  color: var(--accent);
  flex-shrink: 0;
  font-size: 0.85rem;
  margin-top: 0.05rem;
}

/* -------- Conclusion block -------- */
.article-conclusion {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  padding: 2rem;
}

/* -------- Tags -------- */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 2.5rem 0;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.article-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-dim);
  padding: 0.22rem 0.55rem;
  border: 1px solid var(--border);
  letter-spacing: 0.04em;
}

/* -------- Article CTA -------- */
.article-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
  border: 1px solid var(--accent-border);
  background: #0c1a0e;
  padding: 2rem 2.5rem;
  margin: 2.5rem 0;
}

.article-cta__text .label { margin-bottom: 0.5rem; }

.article-cta__text h3 {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--text);
  margin-bottom: 0.4rem;
}

.article-cta__text p {
  font-size: 0.86rem;
  margin: 0;
}

/* -------- Related Articles -------- */
.related-articles {
  margin-top: 3rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
}

.related-articles .label { margin-bottom: 1.25rem; }

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.related-card {
  background: var(--bg-alt);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: background var(--ease);
}

.related-card:hover { background: var(--bg-card); }

.related-card__cat {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.related-card__title {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

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

@media (max-width: 820px) {
  .blog-cta__inner  { flex-direction: column; align-items: flex-start; }
  .article-cta      { flex-direction: column; }
}

@media (max-width: 640px) {
  .blog-grid {
    grid-template-columns: 1fr;
    background: transparent;
    border: none;
    gap: 1rem;
  }
  .blog-grid .blog-card { border: 1px solid var(--border); }

  .related-grid {
    grid-template-columns: 1fr;
    background: transparent;
    border: none;
    gap: 1rem;
  }
  .related-card { border: 1px solid var(--border); }
}