/* ============================================================
   blog-post.css — Individual Blog Post Styles
   Nexus Living Hub · Session 26
   ============================================================ */

/* ── Reading Progress Bar ── */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--color-accent-gold);
  z-index: 1001;
  width: 0%;
  transition: width 0.1s linear;
  pointer-events: none;
}

/* ── Blog Post Wrapper ── */
.blog-post {
  padding-top: calc(72px + var(--space-xl));
  padding-bottom: var(--space-3xl);
  background: var(--color-bg-primary);
  min-height: 70vh;
}

/* ── Breadcrumb ── */
.breadcrumb {
  max-width: 800px;
  margin: 0 auto var(--space-md);
  padding: 0 var(--space-sm);
  font-family: var(--font-accent);
  font-size: var(--small-size);
  color: var(--color-text-muted);
  letter-spacing: var(--ls-wide);
}

.breadcrumb a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.breadcrumb span {
  margin: 0 0.4em;
  opacity: 0.6;
}

/* ── Post Header ── */
.blog-post__header {
  max-width: 800px;
  margin: 0 auto var(--space-lg);
  padding: 0 var(--space-sm);
  text-align: center;
}

.blog-post__tag {
  display: inline-block;
  font-family: var(--font-accent);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--color-accent-gold);
  background: rgba(201, 169, 110, 0.1);
  border: 1px solid rgba(201, 169, 110, 0.3);
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-md);
}

.blog-post__header h1 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw + 0.5rem, 2.75rem);
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.25;
  margin: 0 0 var(--space-md);
}

.blog-post__meta {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-family: var(--font-accent);
  font-size: var(--small-size);
  color: var(--color-text-muted);
  letter-spacing: var(--ls-wide);
}

.blog-post__meta time {
  color: var(--color-text-muted);
}

.blog-post__meta .separator {
  opacity: 0.4;
}

/* ── Hero Image ── */
.blog-post__hero-image {
  max-width: 900px;
  margin: 0 auto var(--space-2xl);
  padding: 0 var(--space-sm);
}

.blog-post__hero-image figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--color-bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.blog-post__hero-image figure::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 20px,
    rgba(201, 169, 110, 0.04) 20px,
    rgba(201, 169, 110, 0.04) 21px
  );
}

.blog-post__hero-image figure .img-placeholder-icon {
  font-size: 3rem;
  color: var(--color-border);
  position: relative;
  z-index: 1;
}

.blog-post__hero-image figcaption {
  font-family: var(--font-accent);
  font-size: var(--small-size);
  color: var(--color-text-muted);
  text-align: center;
  margin-top: var(--space-xs);
  font-style: italic;
}

/* ── Article Body ── */
.blog-post__body {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 var(--space-sm);
}

.blog-post__body p {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--color-text-primary);
  margin: 0 0 var(--space-md);
}

.blog-post__body h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.35rem, 2.5vw, 1.85rem);
  font-weight: 600;
  color: var(--color-text-primary);
  line-height: var(--lh-tight);
  margin: var(--space-2xl) 0 var(--space-md);
  padding-bottom: var(--space-xs);
  border-bottom: 2px solid var(--color-border);
}

.blog-post__body h3 {
  font-family: var(--font-heading);
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  font-weight: 600;
  color: var(--color-text-primary);
  margin: var(--space-lg) 0 var(--space-sm);
}

.blog-post__body ul,
.blog-post__body ol {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--color-text-primary);
  padding-left: 1.5rem;
  margin: 0 0 var(--space-md);
}

.blog-post__body ul li,
.blog-post__body ol li {
  margin-bottom: 0.5rem;
}

.blog-post__body a {
  color: var(--color-accent-gold);
  text-decoration: underline;
  text-decoration-color: rgba(201, 169, 110, 0.4);
  text-underline-offset: 3px;
  transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

.blog-post__body a:hover {
  color: var(--color-terracotta);
  text-decoration-color: var(--color-terracotta);
}

.blog-post__body blockquote {
  border-left: 4px solid var(--color-accent-gold);
  margin: var(--space-lg) 0;
  padding: var(--space-md) var(--space-lg);
  background: var(--color-surface);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-style: italic;
  color: var(--color-text-primary);
  line-height: 1.6;
}

/* ── Inline Image ── */
.blog-post__inline-image {
  margin: var(--space-xl) 0;
}

.blog-post__inline-image figure {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--color-bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.blog-post__inline-image figure::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 20px,
    rgba(201, 169, 110, 0.04) 20px,
    rgba(201, 169, 110, 0.04) 21px
  );
}

.blog-post__inline-image figure .img-placeholder-icon {
  font-size: 2.5rem;
  color: var(--color-border);
  position: relative;
  z-index: 1;
}

.blog-post__inline-image figcaption {
  font-family: var(--font-accent);
  font-size: var(--small-size);
  color: var(--color-text-muted);
  text-align: center;
  margin-top: var(--space-xs);
  font-style: italic;
}

/* ── Mid-Article CTA ── */
.blog-post__mid-cta {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-lg);
  margin: var(--space-2xl) 0;
  text-align: center;
}

.blog-post__mid-cta p {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--color-text-primary);
  margin: 0 0 var(--space-md);
  line-height: 1.5;
}

.blog-post__mid-cta .btn-primary {
  display: inline-block;
  font-family: var(--font-accent);
  font-size: var(--cta-size);
  font-weight: 600;
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  background: var(--color-cta);
  color: #fff;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-sm);
  padding: 14px 32px;
  cursor: pointer;
  transition: background 0.3s ease, transform 0.2s ease;
}

.blog-post__mid-cta .btn-primary:hover {
  background: var(--color-cta-hover);
  transform: scale(1.02);
  color: #fff;
  text-decoration: none;
}

/* ── FAQ Section ── */
.blog-post__faq {
  max-width: 720px;
  margin: var(--space-2xl) auto 0;
  padding: var(--space-xl) var(--space-sm);
  border-top: 2px solid var(--color-border);
}

.blog-post__faq > h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 0 0 var(--space-lg);
  text-align: center;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-primary);
  line-height: 1.5;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  transition: color 0.2s ease;
}

.faq-question:hover {
  color: var(--color-accent-gold);
}

.faq-question:focus-visible {
  outline: 2px solid var(--color-accent-gold);
  outline-offset: 2px;
  border-radius: 2px;
}

.faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: var(--radius-full);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--color-accent-gold);
  transition: transform 0.3s ease, background 0.2s ease;
  font-style: normal;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--color-accent-gold);
  color: #fff;
  border-color: var(--color-accent-gold);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq-answer-inner {
  padding: 0 0 var(--space-md);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--color-text-primary);
}

/* ── Author Box ── */
.blog-post__author {
  max-width: 720px;
  margin: var(--space-xl) auto 0;
  padding: var(--space-lg);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.author-avatar {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  border-radius: var(--radius-full);
  background: var(--color-bg-secondary);
  border: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 1.5rem;
}

.author-info strong {
  display: block;
  font-family: var(--font-accent);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--color-text-primary);
  margin-bottom: var(--space-xs);
}

.author-info p {
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--color-text-muted);
  margin: 0;
}

/* ── Related Posts ── */
.blog-post__related {
  max-width: 900px;
  margin: var(--space-2xl) auto 0;
  padding: 0 var(--space-sm);
}

.blog-post__related > h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 0 0 var(--space-lg);
  text-align: center;
}

.related-posts-grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
}

@media (min-width: 600px) {
  .related-posts-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.related-card {
  background: var(--color-surface-raised);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-decoration: none;
  display: block;
  color: inherit;
}

.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  text-decoration: none;
}

.related-card__image {
  aspect-ratio: 16 / 9;
  background: var(--color-bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-border);
  font-size: 2rem;
}

.related-card__content {
  padding: var(--space-md);
}

.related-card__tag {
  font-family: var(--font-accent);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--color-accent-gold);
  display: block;
  margin-bottom: 0.5rem;
}

.related-card__title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-primary);
  line-height: 1.4;
  margin: 0;
}

/* ── End CTA ── */
.blog-post__cta {
  background: var(--color-text-primary);
  padding: var(--space-2xl) var(--space-sm);
  margin-top: var(--space-2xl);
  text-align: center;
}

.blog-post__cta h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 600;
  color: var(--color-text-on-dark);
  margin: 0 0 var(--space-sm);
}

.blog-post__cta p {
  font-family: var(--font-body);
  font-size: 1rem;
  color: rgba(245, 240, 232, 0.75);
  margin: 0 0 var(--space-lg);
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.blog-post__cta .btn-ghost {
  display: inline-block;
  background: transparent;
  color: var(--color-text-on-dark);
  border: 2px solid var(--color-text-on-dark);
  border-radius: var(--radius-sm);
  padding: 14px 36px;
  font-family: var(--font-accent);
  font-size: var(--cta-size);
  font-weight: 600;
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.3s ease, color 0.3s ease;
  margin-right: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.blog-post__cta .btn-ghost:hover {
  background: var(--color-text-on-dark);
  color: var(--color-text-primary);
  text-decoration: none;
}

/* ── Responsive ── */
@media (min-width: 768px) {
  .blog-post__header,
  .breadcrumb {
    padding: 0 var(--space-lg);
  }

  .blog-post__hero-image,
  .blog-post__body,
  .blog-post__faq,
  .blog-post__author,
  .blog-post__related {
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
  }
}

@media (min-width: 1280px) {
  .blog-post__header,
  .breadcrumb {
    padding: 0;
  }

  .blog-post__hero-image,
  .blog-post__body,
  .blog-post__faq,
  .blog-post__author,
  .blog-post__related {
    padding-left: 0;
    padding-right: 0;
  }
}

/* ── Reduced Motion ── */
@media (prefers-reduced-motion: reduce) {
  .reading-progress {
    transition: none;
  }

  .faq-answer {
    transition: none;
  }

  .faq-icon {
    transition: none;
  }

  .related-card {
    transition: none;
  }
}