/* =============================================================================
   TRUCKER TALK RADIO  -  blog.css
   Blog-specific styling for the public blog list (/blog) and single post
   (/blog/:slug). Layered on top of /styles.css, which is loaded FIRST and owns
   the design tokens (--bg, --steel, --amber, --cream, fonts, etc). This file
   re-uses those tokens and never redefines them. Rugged, elegant, clean, tough.
   No em dashes, no en dashes anywhere.
   ============================================================================= */

/* -----------------------------------------------------------------------------
   Base + a11y helpers scoped to the blog body.
----------------------------------------------------------------------------- */

.blog-body {
  background-color: var(--bg);
  color: var(--cream);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.blog-body #site-footer { margin-top: auto; }

/* Skip link, revealed on focus only. */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  background: var(--amber);
  color: var(--amber-ink);
  font-family: var(--font-heavy);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.8rem;
  padding: 0.7rem 1.1rem;
  border-radius: var(--r);
}
.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

/* The blog reuses the marketing #site-nav styles from styles.css. This subtle
   tweak just guarantees the keyline sits crisp on the darker blog canvas. */
#site-nav.blog-nav { border-bottom: 1px solid transparent; }
#site-nav.blog-nav.is-scrolled { border-bottom-color: var(--line); }

/* Main column wrapper. */
.blog-main {
  padding-top: clamp(2rem, 5vw, 3.5rem);
  padding-bottom: clamp(4rem, 9vw, 7rem);
}

/* -----------------------------------------------------------------------------
   Shared buttons (blog local, on-brand, machined not glowing).
----------------------------------------------------------------------------- */

.btn-amber,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-heavy);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.8rem;
  padding: 0.8rem 1.4rem;
  border-radius: var(--r);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease),
              border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.btn-amber {
  background: var(--amber);
  color: var(--amber-ink);
  border-color: var(--amber);
}
.btn-amber:hover {
  background: var(--amber-hi);
  border-color: var(--amber-hi);
  transform: translateY(-1px);
}
.btn-amber:active { transform: translateY(0); }
.btn-ghost {
  background: transparent;
  color: var(--cream);
  border-color: var(--line);
}
.btn-ghost:hover {
  border-color: var(--muted-dim);
  color: var(--cream);
  transform: translateY(-1px);
}
.btn-ghost:active { transform: translateY(0); }

/* -----------------------------------------------------------------------------
   Blog header block (list page).
----------------------------------------------------------------------------- */

.blog-head {
  padding: clamp(1rem, 3vw, 2rem) 0 clamp(1.75rem, 4vw, 2.75rem);
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: clamp(2rem, 5vw, 3rem);
}
.blog-eyebrow {
  font-family: var(--font-heavy);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.72rem;
  color: var(--amber);
  margin: 0 0 0.75rem;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}
.blog-eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--amber);
  border-radius: 2px;
  display: inline-block;
}
.blog-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 6vw, 4.25rem);
  line-height: 0.98;
  letter-spacing: 0.005em;
  color: var(--cream);
  margin: 0 0 0.9rem;
  text-transform: uppercase;
}
.blog-lede {
  font-family: var(--font-body);
  font-size: clamp(1.02rem, 1.4vw, 1.18rem);
  line-height: 1.6;
  color: var(--muted);
  max-width: 46rem;
  margin: 0;
}

/* -----------------------------------------------------------------------------
   Category filter rail (horizontal chip scroller).
----------------------------------------------------------------------------- */

.cat-nav {
  margin-top: clamp(1.4rem, 3vw, 2rem);
  overflow: hidden;
}
.cat-nav__scroll {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}
.cat-chip {
  font-family: var(--font-heavy);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-size: 0.74rem;
  color: var(--muted);
  background: var(--steel);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.5rem 1rem;
  white-space: nowrap;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease),
              background 0.18s var(--ease);
}
.cat-chip:hover {
  color: var(--cream);
  border-color: var(--muted-dim);
  background: var(--steel-hi);
}
.cat-chip.is-active {
  color: var(--amber-ink);
  background: var(--amber);
  border-color: var(--amber);
}

/* -----------------------------------------------------------------------------
   Post grid + cards.
----------------------------------------------------------------------------- */

.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr));
  gap: clamp(1.25rem, 3vw, 2rem);
}

.post-card {
  display: flex;
  flex-direction: column;
  background: var(--steel);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease),
              background 0.28s var(--ease);
  position: relative;
}
.post-card::before {
  /* the recurring machined amber left edge, revealed on hover */
  content: "";
  position: absolute;
  left: 0;
  top: 18%;
  bottom: 18%;
  width: 2px;
  background: var(--amber);
  border-radius: 2px;
  opacity: 0;
  transition: opacity 0.28s var(--ease);
  z-index: 2;
}
.post-card:hover {
  transform: var(--lift);
  border-color: var(--muted-dim);
  background: var(--steel-hi);
}
.post-card:hover::before { opacity: 1; }
.post-card:focus-within {
  border-color: var(--amber);
}

.post-card__media {
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--steel-deep);
  border-bottom: 1px solid var(--line);
}
.post-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s var(--ease);
}
.post-card:hover .post-card__media img { transform: scale(1.04); }

.post-card__media--empty {
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(120% 120% at 50% 0%, var(--steel-hi), var(--steel-deep));
}
.post-card__mark {
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 3rem);
  letter-spacing: 0.08em;
  color: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 0.2em 0.4em;
  user-select: none;
}

.post-card__body {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: clamp(1.15rem, 2.5vw, 1.5rem);
  flex: 1 1 auto;
}
.post-card__cat {
  align-self: flex-start;
  font-family: var(--font-heavy);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.68rem;
  color: var(--amber);
  transition: color 0.18s var(--ease);
}
.post-card__cat:hover { color: var(--amber-hi); }
.post-card__title {
  font-family: var(--font-heavy);
  font-weight: 700;
  font-size: clamp(1.2rem, 2vw, 1.42rem);
  line-height: 1.2;
  letter-spacing: 0.005em;
  margin: 0;
  color: var(--cream);
}
.post-card__title a {
  color: inherit;
  transition: color 0.18s var(--ease);
}
.post-card__title a::after {
  /* full-card click target without wrapping the whole article in an anchor */
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
}
.post-card__title a:hover { color: var(--amber); }
.post-card__excerpt {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--muted);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-card__meta {
  margin-top: auto;
  padding-top: 0.65rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heavy);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-size: 0.7rem;
  color: var(--muted-dim);
}
.post-card__author { color: var(--muted); }
.post-card__dot { color: var(--line); }

/* -----------------------------------------------------------------------------
   Pagination.
----------------------------------------------------------------------------- */

.pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
  padding-top: clamp(1.5rem, 3vw, 2rem);
  border-top: 1px solid var(--line-soft);
}
.pager__link {
  font-family: var(--font-heavy);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.78rem;
  color: var(--cream);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 0.7rem 1.2rem;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease),
              background 0.18s var(--ease);
}
.pager__link:hover {
  border-color: var(--amber);
  color: var(--amber);
}
.pager__link.is-disabled {
  color: var(--muted-dim);
  border-color: var(--line-soft);
  opacity: 0.5;
  pointer-events: none;
}
.pager__count {
  font-family: var(--font-heavy);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.74rem;
  color: var(--muted);
}

/* -----------------------------------------------------------------------------
   Empty + 404 states.
----------------------------------------------------------------------------- */

.blog-empty {
  text-align: center;
  padding: clamp(3rem, 9vw, 6rem) 1rem;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--steel);
}
.blog-empty__mark {
  font-family: var(--font-display);
  font-size: clamp(3rem, 12vw, 6rem);
  letter-spacing: 0.06em;
  color: var(--line);
  margin: 0 0 0.5rem;
  user-select: none;
}
.blog-empty h1,
.blog-empty h2 {
  font-family: var(--font-heavy);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--cream);
  margin: 0 0 0.6rem;
  font-size: clamp(1.4rem, 3vw, 2rem);
}
.blog-empty p {
  color: var(--muted);
  max-width: 34rem;
  margin: 0 auto 1.5rem;
}
.blog-empty .btn-ghost { margin-top: 0.5rem; }
.blog-404__actions {
  display: flex;
  gap: 0.85rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

/* -----------------------------------------------------------------------------
   SINGLE POST PAGE
----------------------------------------------------------------------------- */

.post__inner {
  max-width: 100%;
}

.post-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heavy);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.72rem;
  color: var(--muted-dim);
  margin-bottom: clamp(1.5rem, 3vw, 2.25rem);
}
.post-breadcrumb a {
  color: var(--muted);
  transition: color 0.18s var(--ease);
}
.post-breadcrumb a:hover { color: var(--amber); }
.post-breadcrumb span { color: var(--line); }

.post-hero {
  max-width: 46rem;
  margin: 0 auto;
  text-align: center;
}
.post-hero__cat {
  display: inline-block;
  font-family: var(--font-heavy);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.74rem;
  color: var(--amber);
  margin-bottom: 1rem;
  transition: color 0.18s var(--ease);
}
.post-hero__cat:hover { color: var(--amber-hi); }
.post-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 5.5vw, 3.9rem);
  line-height: 1.02;
  letter-spacing: 0.005em;
  color: var(--cream);
  margin: 0 0 1rem;
  text-transform: uppercase;
}
.post-hero__excerpt {
  font-family: var(--font-body);
  font-size: clamp(1.05rem, 1.6vw, 1.28rem);
  line-height: 1.6;
  color: var(--muted);
  margin: 0 auto 1.25rem;
  max-width: 40rem;
}
.post-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-heavy);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.74rem;
  color: var(--muted);
}
.post-hero__author { color: var(--cream); }
.post-hero__dot { color: var(--line); }
.post-hero__read { color: var(--muted-dim); }

.post-hero__title::after {
  /* the single machined amber underline motif */
  content: "";
  display: block;
  width: 64px;
  height: 3px;
  background: var(--amber);
  border-radius: 2px;
  margin: 1.25rem auto 0;
}

.post-hero__cover,
.post-body,
.post-footer {
  max-width: 46rem;
  margin-left: auto;
  margin-right: auto;
}

.post-hero__cover {
  margin-top: clamp(2rem, 5vw, 3rem);
  margin-bottom: clamp(2rem, 5vw, 3rem);
  max-width: 62rem;
}
.post-hero__cover img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: var(--steel-deep);
}
.post-hero__cover figcaption {
  margin-top: 0.75rem;
  text-align: center;
  font-size: 0.82rem;
  color: var(--muted-dim);
  font-style: italic;
}

/* -----------------------------------------------------------------------------
   Long-form prose. Readable typography on the dark theme.
----------------------------------------------------------------------------- */

.prose {
  font-family: var(--font-body);
  font-size: clamp(1.05rem, 0.5vw + 1rem, 1.16rem);
  line-height: 1.75;
  color: var(--cream);
  letter-spacing: 0.003em;
}
.prose > * + * { margin-top: 1.35em; }
.prose p {
  margin: 0;
  color: var(--cream);
}
.prose h1,
.prose h2,
.prose h3 {
  font-family: var(--font-heavy);
  font-weight: 700;
  color: var(--cream);
  line-height: 1.2;
  letter-spacing: 0.005em;
  margin-top: 2em;
  margin-bottom: 0.2em;
  scroll-margin-top: 90px;
}
.prose h1 { font-size: clamp(1.7rem, 3.5vw, 2.3rem); text-transform: uppercase; }
.prose h2 {
  font-size: clamp(1.45rem, 2.8vw, 1.85rem);
  padding-bottom: 0.35em;
  border-bottom: 1px solid var(--line-soft);
}
.prose h3 { font-size: clamp(1.2rem, 2.2vw, 1.45rem); }
.prose a {
  color: var(--amber);
  text-decoration: underline;
  text-decoration-color: rgba(245, 135, 31, 0.4);
  text-underline-offset: 3px;
  transition: color 0.18s var(--ease), text-decoration-color 0.18s var(--ease);
}
.prose a:hover {
  color: var(--amber-hi);
  text-decoration-color: var(--amber-hi);
}
.prose strong { color: var(--cream); font-weight: 700; }
.prose em { color: var(--cream); }

.prose ul,
.prose ol {
  margin: 1.35em 0;
  padding-left: 1.5rem;
  color: var(--cream);
}
.prose li { margin: 0.4em 0; }
.prose li::marker { color: var(--amber); }

.prose blockquote {
  margin: 1.6em 0;
  padding: 0.4rem 0 0.4rem 1.35rem;
  border-left: 3px solid var(--amber);
  color: var(--muted);
  font-size: 1.08em;
  font-style: italic;
}
.prose blockquote p { color: var(--muted); }

.prose code {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.9em;
  background: var(--steel-deep);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 0.12em 0.4em;
  color: var(--cream);
}
.prose pre {
  background: var(--steel-deep);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 1.1rem 1.25rem;
  overflow-x: auto;
  font-size: 0.9rem;
  line-height: 1.6;
}
.prose pre code {
  background: transparent;
  border: 0;
  padding: 0;
  font-size: inherit;
  color: var(--cream);
}

.prose img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 1.6em auto;
  border-radius: var(--r);
  border: 1px solid var(--line);
  background: var(--steel-deep);
}

.prose hr {
  border: 0;
  height: 1px;
  background: var(--line);
  margin: 2.5em 0;
}

/* -----------------------------------------------------------------------------
   Post footer (updated stamp, views, actions).
----------------------------------------------------------------------------- */

.post-footer {
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
  padding-top: clamp(1.5rem, 3vw, 2rem);
  border-top: 1px solid var(--line-soft);
}
.post-footer__updated,
.post-footer__stats {
  font-family: var(--font-heavy);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.72rem;
  color: var(--muted-dim);
  margin: 0 0 0.4rem;
}
.post-footer__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.5rem;
}

/* -----------------------------------------------------------------------------
   Related posts.
----------------------------------------------------------------------------- */

.related {
  margin-top: clamp(3.5rem, 7vw, 5.5rem);
  padding-top: clamp(2rem, 4vw, 3rem);
  border-top: 1px solid var(--line);
}
.related__heading {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  letter-spacing: 0.01em;
  text-transform: uppercase;
  color: var(--cream);
  margin: 0 0 clamp(1.25rem, 3vw, 1.75rem);
}
.related__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 260px), 1fr));
  gap: clamp(1.1rem, 2.5vw, 1.6rem);
}
.related-card {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  background: var(--steel);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  position: relative;
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease),
              background 0.28s var(--ease);
}
.related-card:hover {
  transform: var(--lift);
  border-color: var(--muted-dim);
  background: var(--steel-hi);
}
.related-card:focus-within { border-color: var(--amber); }
.related-card__media {
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--steel-deep);
  border-bottom: 1px solid var(--line);
}
.related-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s var(--ease);
}
.related-card:hover .related-card__media img { transform: scale(1.04); }
.related-card__media--empty {
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(120% 120% at 50% 0%, var(--steel-hi), var(--steel-deep));
}
.related-card__title {
  font-family: var(--font-heavy);
  font-weight: 700;
  font-size: 1.05rem;
  line-height: 1.25;
  color: var(--cream);
  margin: 0;
  padding: 0 1rem;
}
.related-card__title a {
  color: inherit;
  transition: color 0.18s var(--ease);
}
.related-card__title a::after {
  content: "";
  position: absolute;
  inset: 0;
}
.related-card__title a:hover { color: var(--amber); }
.related-card__date {
  padding: 0 1rem 1rem;
  font-family: var(--font-heavy);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-size: 0.68rem;
  color: var(--muted-dim);
}

/* -----------------------------------------------------------------------------
   Responsive.
----------------------------------------------------------------------------- */

@media (max-width: 640px) {
  .blog-main { padding-top: 1.5rem; }
  .post-grid { grid-template-columns: 1fr; }
  .pager {
    flex-direction: column;
    gap: 0.85rem;
  }
  .pager__link,
  .pager__link.is-disabled { width: 100%; text-align: center; }
  .pager__count { order: -1; }
  .post-footer__actions .btn-amber,
  .post-footer__actions .btn-ghost,
  .blog-404__actions .btn-amber,
  .blog-404__actions .btn-ghost { width: 100%; }
}

/* Respect reduced-motion preferences. */
@media (prefers-reduced-motion: reduce) {
  .post-card,
  .related-card,
  .post-card__media img,
  .related-card__media img,
  .btn-amber,
  .btn-ghost,
  .cat-chip,
  .pager__link { transition: none !important; }
  .post-card:hover,
  .related-card:hover { transform: none; }
  .post-card:hover .post-card__media img,
  .related-card:hover .related-card__media img { transform: none; }
}