/* ============================================
   VANGUARD ACADEMY JIU-JITSU — Blog Styles
   Uses tokens from assets/css/styles.css
   ============================================ */

/* ---------- Blog index hero ---------- */
.blog-hero {
  padding: calc(var(--nav-height) + 4rem) 0 4rem;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  text-align: center;
}
.blog-hero .label { display: inline-block; margin-bottom: 1rem; }
.blog-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 1rem;
  color: var(--color-white);
}
.blog-hero p {
  color: var(--color-text-secondary);
  max-width: 620px;
  margin: 0 auto;
  font-size: 1.05rem;
}

/* ---------- Card grid ---------- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2rem;
}
@media (max-width: 900px) {
  .blog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 600px) {
  .blog-grid { grid-template-columns: 1fr; gap: 1.5rem; }
}

.blog-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.4s var(--ease-out-expo), border-color 0.3s ease, box-shadow 0.4s ease;
}
.blog-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-light);
  box-shadow: 0 18px 50px -20px rgba(0,0,0,0.6);
}
.blog-card-image {
  display: block;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--color-surface-2);
}
.blog-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out-expo);
}
.blog-card:hover .blog-card-image img { transform: scale(1.04); }

.blog-card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  flex: 1;
}
.blog-card-meta {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.blog-card-meta .blog-card-dot { opacity: 0.6; }

.blog-card-title {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--color-white);
}
.blog-card-title a {
  color: inherit;
  transition: color 0.2s ease;
}
.blog-card-title a:hover { color: var(--color-accent); }

.blog-card-excerpt {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.55;
}

.blog-card-categories {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: auto;
  padding-top: 0.5rem;
}
.blog-tag {
  display: inline-block;
  padding: 0.3rem 0.7rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: rgba(37, 118, 209, 0.1);
  border: 1px solid rgba(37, 118, 209, 0.25);
  border-radius: var(--radius-full);
}

/* ---------- Pagination ---------- */
.blog-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  margin-top: 3.5rem;
  flex-wrap: wrap;
}
.blog-pagination__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  height: 42px;
  padding: 0 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.2s ease;
}
.blog-pagination__btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.blog-pagination__btn.is-active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}
.blog-pagination__btn.is-disabled {
  opacity: 0.35;
  pointer-events: none;
}

/* ---------- RSS link ---------- */
.blog-rss {
  text-align: center;
  margin-top: 2.5rem;
}
.blog-rss a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  transition: color 0.2s ease;
}
.blog-rss a:hover { color: var(--color-accent); }

/* ---------- Post hero ---------- */
.post-hero {
  padding: calc(var(--nav-height) + 4rem) 0 6rem;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  text-align: center;
}
.post-hero-inner { max-width: 820px; margin: 0 auto; }
.post-categories {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
}
.post-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 5.5vw, 3.75rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--color-white);
  margin-bottom: 1.25rem;
}
.post-meta {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  flex-wrap: wrap;
}
.post-meta-dot { opacity: 0.6; }

/* ---------- Featured image (overlaps hero/content) ---------- */
.post-featured-image {
  max-width: 1080px;
  margin: 0 auto;
  transform: translateY(-40px);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-surface-2);
  box-shadow: 0 30px 80px -30px rgba(0,0,0,0.7);
}
.post-featured-image img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
}

/* ---------- Body content ---------- */
.post-content-wrapper {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 var(--container-padding) 4rem;
}
.post-content {
  color: var(--color-text);
  font-size: 1.0625rem;
  line-height: 1.75;
}
.post-content > * + * { margin-top: 1.25rem; }
.post-content h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-top: 3rem;
  color: var(--color-white);
}
.post-content h3 {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.2vw, 1.5rem);
  line-height: 1.2;
  margin-top: 2.25rem;
  color: var(--color-white);
}
.post-content h4 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-top: 1.75rem;
  color: var(--color-white);
}
.post-content p { color: var(--color-text); }
.post-content a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color 0.2s ease;
}
.post-content a:hover { color: var(--color-accent-hover); }
.post-content strong { color: var(--color-white); font-weight: 700; }
.post-content em { color: var(--color-text); }
.post-content ul, .post-content ol {
  padding-left: 1.5rem;
  color: var(--color-text);
}
.post-content ul { list-style: disc; }
.post-content ol { list-style: decimal; }
.post-content li { margin-top: 0.5rem; }
.post-content li::marker { color: var(--color-accent); }
.post-content blockquote {
  border-left: 3px solid var(--color-accent);
  padding: 0.25rem 0 0.25rem 1.25rem;
  color: var(--color-text-secondary);
  font-style: italic;
  font-size: 1.1rem;
}
.post-content img {
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  margin: 2rem auto;
}
.post-content code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.15rem 0.4rem;
  font-size: 0.9em;
  color: var(--color-accent);
}
.post-content pre {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  overflow-x: auto;
  font-size: 0.9rem;
}
.post-content pre code {
  background: none;
  border: none;
  padding: 0;
  color: var(--color-text);
}
.post-content hr {
  border: none;
  height: 1px;
  background: var(--color-border);
  margin: 3rem 0;
}

/* ---------- Post CTA card ---------- */
.post-cta {
  position: relative;
  margin: 3.5rem auto 0;
  padding: 2.5rem 2rem;
  text-align: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.post-cta::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-hover), var(--color-accent));
}
.post-cta .label { display: inline-block; margin-bottom: 0.75rem; }
.post-cta h3 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--color-white);
  margin-bottom: 0.75rem;
}
.post-cta p {
  color: var(--color-text-secondary);
  margin-bottom: 1.5rem;
}

/* ---------- Share row ---------- */
.post-share {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  margin: 2.5rem 0 0;
  flex-wrap: wrap;
}
.post-share-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-text-muted);
  margin-right: 0.4rem;
}
.post-share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: transform 0.2s var(--ease-out-expo), color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.post-share-btn:hover {
  transform: translateY(-2px);
  color: var(--color-accent);
  border-color: var(--color-accent);
  background: rgba(37, 118, 209, 0.08);
}
.post-share-btn.is-copied {
  color: var(--color-success, #22c55e);
  border-color: var(--color-success, #22c55e);
}

/* ---------- Divider ---------- */
.post-divider {
  border: none;
  height: 1px;
  background: var(--color-border);
  max-width: 720px;
  margin: 4rem auto 0;
}

/* ---------- Related posts ---------- */
.related-posts {
  padding: 4rem 0 2rem;
}
.related-posts h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  text-align: center;
  margin-bottom: 2rem;
  color: var(--color-white);
}
.related-posts-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}
@media (max-width: 900px) { .related-posts-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .related-posts-grid { grid-template-columns: 1fr; } }

/* ---------- Prev / Next nav ---------- */
.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 3rem auto 5rem;
  max-width: 1080px;
}
@media (max-width: 600px) {
  .post-nav { grid-template-columns: 1fr; }
}
.post-nav-link {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1.25rem 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.post-nav-link:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}
.post-nav-link--next { text-align: right; }
.post-nav-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
}
.post-nav-title {
  color: var(--color-white);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.3;
}