/* ════════════════════════════════════════════
   FASTKIT BLOG — blog.css
   ─────────────────────────────────────────
   SECTION 1: Blog listing (blog.html)
   SECTION 2: Blog post / single (blog/*.html)
   SECTION 3: Shared utilities (both)
════════════════════════════════════════════ */


/* ════════════════════════════════════════════
   SECTION 1 — BLOG LISTING (blog.html)
════════════════════════════════════════════ */

/* ── Filters ── */
.blog-filters {
  display: flex;
  gap: var(--s2);
  flex-wrap: wrap;
  margin-bottom: var(--s7);
}

.blog-filter {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text-3);
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: var(--r-pill);
  padding: 5px 14px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}

.blog-filter:hover {
  color: var(--text);
  border-color: var(--border-3);
}

.blog-filter.active {
  color: var(--accent);
  border-color: var(--accent-dim);
  background: var(--accent-dim2);
}

/* ── Post grid ── */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s5);
}

/* ── Blog card ── */
.blog-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r4);
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
  display: flex;
  flex-direction: column;
}

.blog-card:hover {
  border-color: var(--border-3);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

/* ── Card cover ── */
.blog-card-cover-link {
  display: block;
  text-decoration: none;
  border-bottom: none !important;
}

.blog-card-cover {
  width: 100%;
  aspect-ratio: 16 / 8;
  overflow: hidden;
  background: var(--bg-3);
  border-bottom: 1px solid var(--border);
}

/* Cover art container — used in both card and post header */
.blog-cover-art {
  width: 100%;
  height: 100%;
  background: var(--bg-2);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: var(--s5) var(--s6);
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 32px 32px;
}

.blog-cover-art::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, var(--accent-dim) 0%, transparent 70%);
  pointer-events: none;
}

/* Arch variant cover */
.blog-cover-art--arch {
  background: var(--bg-2);
}

/* ── Code snippet inside cover ── */
.blog-cover-code {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  line-height: 1.7;
  position: relative;
  z-index: 1;
  background: var(--code-bg);
  border: 1px solid var(--border-2);
  border-radius: var(--r3);
  padding: var(--s3) var(--s4);
  width: 100%;
  max-width: 300px;
  box-shadow: var(--shadow-lg);
}

/* ── Architecture diagram inside cover ── */
.blog-cover-diagram {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s1);
  position: relative;
  z-index: 1;
}

.bcd-layer {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.05em;
  padding: 6px 24px;
  border-radius: var(--r2);
  border: 1px solid;
  white-space: nowrap;
}

.bcd-top {
  color: var(--accent);
  border-color: var(--accent-dim);
  background: var(--accent-dim2);
}

.bcd-mid {
  color: var(--text);
  border-color: var(--border-3);
  background: var(--surface);
  box-shadow: var(--shadow);
  font-size: 12px;
  padding: 8px 28px;
}

.bcd-bot {
  color: var(--text-3);
  border-color: var(--border-2);
  background: var(--bg-3);
}

.bcd-arrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--text-4);
  line-height: 1;
}

/* ── Cover tag chip ── */
.blog-cover-tag-chip {
  position: absolute;
  bottom: var(--s3);
  right: var(--s4);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--accent);
  background: var(--accent-dim2);
  border: 1px solid var(--accent-dim);
  padding: 2px 8px;
  border-radius: var(--r1);
  z-index: 2;
}

/* ── Card body ── */
.blog-card-body {
  padding: var(--s5) var(--s6) var(--s6);
  display: flex;
  flex-direction: column;
  gap: var(--s3);
  flex: 1;
}

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: var(--s2);
  flex-wrap: wrap;
}

.blog-date {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--text-4);
  letter-spacing: 0.04em;
  margin-left: auto;
}

/* Card title — scoped to prevent collision with post body h2 */
.blog-card-title {
  font-family: 'Roboto Flex', sans-serif;
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: var(--text);
  margin: 0;
  /* Reset any inherited h2 styles */
  display: block;
}

.blog-card-title::before {
  display: none !important;
  content: none !important;
}

.blog-card-title a {
  color: inherit;
  text-decoration: none;
  border-bottom: none !important;
  transition: color 0.15s;
}

.blog-card-title a:hover {
  color: var(--accent);
  border-bottom: none !important;
}

.blog-card-excerpt {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.7;
  margin: 0;
  flex: 1;
}

/* ── Card read more button ── */
.blog-card-read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 500;
  color: var(--bg);
  background: var(--accent);
  padding: 7px 14px;
  border-radius: var(--r2);
  text-decoration: none;
  border-bottom: none !important;
  letter-spacing: 0.03em;
  transition: filter 0.15s, gap 0.15s;
  align-self: flex-start;
  margin-top: auto;
}

.blog-card-read-more:hover {
  filter: brightness(1.08);
  gap: 10px;
  border-bottom: none !important;
}

.blog-card-read-more--soon {
  background: var(--surface);
  color: var(--text-4);
  border: 1px solid var(--border-2) !important;
  cursor: default;
  pointer-events: none;
}

/* ── Listing responsive ── */
@media (max-width: 768px) {
  .blog-grid { grid-template-columns: 1fr; }
}


/* ════════════════════════════════════════════
   SECTION 2 — BLOG POST / SINGLE (blog/*.html)
════════════════════════════════════════════ */

/* ── Post layout ── */
.blog-post-root {
  padding-top: var(--nav-height);
  position: relative;
  z-index: 1;
}

.blog-post-layout {
  display: grid;
  grid-template-columns: 1fr 740px 260px;
  max-width: 1360px;
  margin: 0 auto;
  min-height: calc(100vh - var(--nav-height));
  align-items: start;
}

/* ── TOC sidebar ── */
.blog-toc {
  position: sticky;
  top: calc(var(--nav-height) + var(--s6));
  padding: var(--s6) var(--s5) var(--s6) var(--s7);
  grid-column: 3;
}

.blog-toc-inner {
  border-left: 1px solid var(--border);
  padding-left: var(--s5);
}

.blog-toc-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-4);
  margin-bottom: var(--s3);
  display: block;
}

.blog-toc-nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: var(--s5);
}

.blog-toc-nav a {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-3);
  text-decoration: none;
  border-bottom: none !important;
  padding: 4px var(--s2);
  border-radius: var(--r1);
  display: block;
  line-height: 1.5;
  transition: color 0.12s, background 0.12s;
  letter-spacing: 0.01em;
}

.blog-toc-nav a:hover {
  color: var(--text);
  background: var(--surface);
  border-bottom: none !important;
}

.blog-toc-nav a.active {
  color: var(--accent);
  background: var(--accent-dim2);
}

.blog-toc-divider {
  height: 1px;
  background: var(--border);
  margin: var(--s4) 0;
}

.blog-toc-related {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.blog-toc-related a {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--accent);
  text-decoration: none;
  border-bottom: none !important;
  padding: 3px var(--s2);
  display: block;
  transition: opacity 0.12s;
}

.blog-toc-related a:hover {
  opacity: 0.75;
  border-bottom: none !important;
}

/* ── Article wrapper ── */
.blog-post-content {
  grid-column: 2;
  padding: var(--s8) var(--s6) var(--s10);
  min-width: 0;
  border-left: 1px solid var(--border);
  border-right: 1px solid var(--border);
}

/* ── Post header ── */
.blog-post-header {
  padding-bottom: var(--s7);
  margin-bottom: var(--s7);
  border-bottom: 1px solid var(--border);
}

.blog-post-breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--s2);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-4);
  margin-bottom: var(--s4);
}

.blog-post-breadcrumb a {
  color: var(--text-3);
  text-decoration: none;
  border-bottom: none !important;
  transition: color 0.15s;
}

.blog-post-breadcrumb a:hover {
  color: var(--accent);
  border-bottom: none !important;
}

.blog-post-tags {
  display: flex;
  gap: var(--s2);
  flex-wrap: wrap;
  margin-bottom: var(--s4);
}

.blog-post-content h1 {
  font-family: 'Roboto Flex', sans-serif;
  font-weight: 800;
  font-size: clamp(26px, 3.5vw, 42px);
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--text);
  margin-bottom: var(--s5);
}

.blog-post-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s4);
  margin-bottom: var(--s6);
  flex-wrap: wrap;
}

.blog-post-author {
  display: flex;
  align-items: center;
  gap: var(--s3);
}

.blog-author-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent-dim2);
  border: 1px solid var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex-shrink: 0;
}

.blog-author-avatar img {
  width: 22px;
  height: 22px;
}

.blog-author-name {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 500;
  color: var(--text);
}

.blog-author-sep {
  color: var(--text-4);
  margin: 0 4px;
}

.blog-post-date {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-3);
}

.blog-post-readtime {
  display: flex;
  align-items: center;
  gap: var(--s2);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-4);
}

/* ── Post cover (larger than card cover) ── */
.blog-post-cover {
  width: 100%;
  border-radius: var(--r4);
  overflow: hidden;
  border: 1px solid var(--border);
}

.blog-post-cover .blog-cover-art {
  aspect-ratio: 16 / 7;
  padding: var(--s6) var(--s7);
}

.blog-post-cover .blog-cover-code {
  font-size: 13px;
  max-width: 520px;
  padding: var(--s5) var(--s6);
}

/* ── Post body typography ── */
.blog-post-body section {
  scroll-margin-top: calc(var(--nav-height) + 24px);
}

.blog-post-body section + section {
  padding-top: var(--s8);
  margin-top: var(--s8);
  border-top: 1px solid var(--border);
}

.blog-post-body h2 {
  font-family: 'Roboto Flex', sans-serif;
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-top: var(--s7);
  margin-bottom: var(--s4);
  display: flex;
  align-items: center;
  gap: var(--s2);
  scroll-margin-top: calc(var(--nav-height) + 24px);
}

.blog-post-body h2::before {
  content: '#';
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  color: var(--accent);
  font-weight: 400;
  opacity: 0.6;
  flex-shrink: 0;
}

.blog-post-body h3 {
  font-family: 'Roboto Flex', sans-serif;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.01em;
  color: var(--text);
  margin-top: var(--s6);
  margin-bottom: var(--s3);
  scroll-margin-top: calc(var(--nav-height) + 24px);
}

.blog-post-body p {
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.85;
  margin-bottom: var(--s4);
}

.blog-post-body ul,
.blog-post-body ol {
  padding-left: var(--s5);
  margin-bottom: var(--s4);
}

.blog-post-body li {
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: var(--s2);
}

.blog-post-body strong { color: var(--text); }
.blog-post-body em     { color: var(--text-2); font-style: italic; }

.blog-post-body a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-dim);
  transition: border-color 0.15s;
}

.blog-post-body a:hover { border-color: var(--accent); }

.blog-post-body code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  background: var(--surface);
  border: 1px solid var(--border-2);
  padding: 2px 6px;
  border-radius: var(--r1);
  color: var(--accent);
}

/* ── Blockquote ── */
.blog-quote {
  border-left: 3px solid var(--accent);
  padding: var(--s4) var(--s5);
  margin: var(--s5) 0;
  background: var(--accent-dim2);
  border-radius: 0 var(--r3) var(--r3) 0;
  font-size: 16px;
  font-style: italic;
  color: var(--text);
  line-height: 1.7;
}

/* ── File label ── */
.blog-file-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-4);
  letter-spacing: 0.04em;
  margin-top: var(--s5);
  margin-bottom: var(--s1);
  display: block;
}

/* ── Steps list ── */
.blog-steps-list {
  display: flex;
  flex-direction: column;
  gap: var(--s2);
  margin: var(--s4) 0;
}

.blog-step {
  display: flex;
  align-items: center;
  gap: var(--s3);
  font-size: 14px;
  color: var(--text-2);
  padding: var(--s3) var(--s4);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r2);
}

.blog-step-num {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent-dim);
  border: 1px solid var(--accent-dim);
  color: var(--accent);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ── Verdict cards ── */
.blog-verdict {
  padding: var(--s4) var(--s5);
  border-radius: var(--r3);
  margin: var(--s4) 0;
  border: 1px solid;
}

.blog-verdict--bad {
  background: color-mix(in srgb, #f87171 8%, transparent);
  border-color: color-mix(in srgb, #f87171 25%, transparent);
}

.blog-verdict--neutral {
  background: color-mix(in srgb, #fcd34d 8%, transparent);
  border-color: color-mix(in srgb, #fcd34d 25%, transparent);
}

.blog-verdict--good {
  background: var(--accent-dim2);
  border-color: var(--accent-dim);
}

.blog-verdict-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: var(--s3);
}

.blog-verdict ul {
  margin: 0 0 var(--s3) 0;
  padding-left: var(--s5);
}

.blog-verdict li {
  font-size: 13px;
  color: var(--text-2);
  margin-bottom: var(--s1);
}

.blog-verdict-time {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--accent);
  margin-top: var(--s2);
}

/* ── Resources box ── */
.blog-resources {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r3);
  padding: var(--s5) var(--s6);
  margin: var(--s6) 0;
}

.blog-resources-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: var(--s4);
}

.blog-resources-links {
  display: flex;
  flex-direction: column;
  gap: var(--s2);
}

.blog-resource-link {
  display: inline-flex;
  align-items: center;
  gap: var(--s2);
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--accent) !important;
  text-decoration: none;
  border-bottom: none !important;
  transition: opacity 0.15s;
}

.blog-resource-link:hover {
  opacity: 0.75;
  border-bottom: none !important;
}

/* ── CTA box ── */
.blog-cta {
  text-align: center;
  padding: var(--s7) var(--s6);
  background: var(--accent-dim2);
  border: 1px solid var(--accent-dim);
  border-radius: var(--r4);
  margin-top: var(--s8);
}

.blog-cta p {
  font-size: 16px;
  color: var(--text);
  margin-bottom: var(--s5);
}

.blog-cta-actions {
  display: flex;
  gap: var(--s3);
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Post CTA button ── */
.blog-post-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 500;
  color: var(--bg);
  background: var(--accent);
  padding: 8px 16px;
  border-radius: var(--r2);
  text-decoration: none;
  border-bottom: none !important;
  letter-spacing: 0.03em;
  transition: filter 0.15s, gap 0.15s;
}

.blog-post-btn:hover {
  filter: brightness(1.08);
  gap: 10px;
  border-bottom: none !important;
}

/* ── Back link ── */
.blog-back-link {
  margin-top: var(--s9);
  padding-top: var(--s6);
  border-top: 1px solid var(--border);
}

.blog-back-link a {
  display: inline-flex;
  align-items: center;
  gap: var(--s2);
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--text-3);
  text-decoration: none;
  border-bottom: none !important;
  transition: color 0.15s;
}

.blog-back-link a:hover {
  color: var(--accent);
  border-bottom: none !important;
}

/* ── Post responsive ── */
@media (max-width: 1200px) {
  .blog-post-layout { grid-template-columns: 0 1fr 220px; }
}

@media (max-width: 900px) {
  .blog-post-layout { grid-template-columns: 1fr; }
  .blog-toc { display: none; }
  .blog-post-content {
    grid-column: 1;
    border-left: none;
    border-right: none;
    padding: var(--s6) var(--s5);
  }
}


/* ════════════════════════════════════════════
   SECTION 3 — SHARED UTILITIES (both pages)
════════════════════════════════════════════ */

/* ── Syntax colors (bcc = blog cover code) ── */
.bcc-line   { color: var(--text-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bcc-dim    { color: var(--text-4); }
.bcc-indent { padding-left: 16px; }
.bcc-kw     { color: #a78bfa; }
.bcc-var    { color: #86efac; }
.bcc-param  { color: #fb923c; }
.bcc-str    { color: #fcd34d; }

/* ── Tag pill — used on both listing and post ── */
.blog-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim2);
  border: 1px solid var(--accent-dim);
  padding: 2px 8px;
  border-radius: var(--r1);
  display: inline-block;
}