/* =========================================
   BLOG — Journal index & post styles
   Extends theme.css and showcase.css
   ========================================= */

/* ---- Nav active state ---- */
.nav-link--active {
  color: var(--accent);
}

/* ---- Blog Header ---- */
.blog-header {
  padding: 8rem 3rem 5rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-2);
}

.blog-header-inner {
  max-width: 800px;
  margin: 0 auto;
}

.blog-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  color: var(--fg);
  margin-bottom: 1.25rem;
  margin-top: 0.5rem;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.blog-subtitle {
  font-size: 1.05rem;
  color: var(--fg-muted);
  max-width: 540px;
  line-height: 1.7;
}

/* ---- Blog Index ---- */
.blog-index {
  padding: 5rem 3rem 7rem;
}

.blog-index-inner {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* ---- Post Card ---- */
.blog-post-card {
  padding: 3rem 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.blog-post-card:first-child {
  border-top: 1px solid var(--border);
}

.blog-post-meta {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.blog-post-category {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 500;
}

.blog-post-date {
  font-size: 0.75rem;
  color: var(--fg-dim);
  letter-spacing: 0.05em;
}

.blog-post-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--fg);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.blog-post-title a {
  transition: color 0.2s;
}

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

.blog-post-excerpt {
  font-size: 1rem;
  color: var(--fg-muted);
  line-height: 1.75;
  max-width: 640px;
  font-style: italic;
}

.blog-post-cta {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 500;
  margin-top: 0.5rem;
  transition: letter-spacing 0.2s;
  display: inline-block;
}

.blog-post-cta:hover {
  letter-spacing: 0.15em;
}

/* ---- Breadcrumb ---- */
.blog-breadcrumb-bar {
  padding: 5rem 3rem 0;
  background: var(--bg);
}

.blog-breadcrumb-inner {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 0;
  font-size: 0.8rem;
}

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

.breadcrumb-link:hover { color: var(--fg); }

.breadcrumb-sep { color: var(--fg-dim); }

.breadcrumb-current {
  color: var(--fg);
  font-weight: 500;
}

/* ---- Post Header ---- */
.blog-post-header {
  padding: 3rem 3rem 4rem;
}

.blog-post-header-inner {
  max-width: 800px;
  margin: 0 auto;
}

.blog-post-headline {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 900;
  color: var(--fg);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin: 1rem 0 1.25rem;
}

.blog-post-tagline {
  font-size: 1.15rem;
  color: var(--fg-muted);
  line-height: 1.7;
  font-style: italic;
  max-width: 640px;
}

/* ---- Post Body ---- */
.blog-post-body-section {
  padding: 0 3rem 5rem;
}

.blog-post-body-inner {
  max-width: 680px;
  margin: 0 auto;
}

.blog-post-body-inner p {
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--fg-muted);
  margin-bottom: 2rem;
  font-weight: 300;
}

.blog-post-body-inner h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--fg);
  margin: 3rem 0 1.25rem;
  letter-spacing: -0.01em;
}

.blog-post-body-inner blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 1.5rem;
  margin: 2.5rem 0;
  font-style: italic;
  color: var(--fg-muted);
  font-size: 1.1rem;
  line-height: 1.7;
}

/* ---- Back Link ---- */
.blog-post-back {
  padding: 0 3rem 6rem;
}

.blog-post-back-inner {
  max-width: 680px;
  margin: 0 auto;
}

.btn-back {
  display: inline-block;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
  border: 1px solid var(--border-strong);
  padding: 0.75rem 1.5rem;
  transition: all 0.2s;
}

.btn-back:hover {
  color: var(--fg);
  border-color: var(--fg-muted);
}

/* ---- Newsletter CTA ---- */
.newsletter-cta {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 4rem 3rem;
}

.newsletter-cta-inner {
  max-width: 680px;
  margin: 0 auto;
}

.newsletter-cta-heading {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 900;
  color: var(--fg);
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
  margin-top: 0.5rem;
}

.newsletter-cta-body {
  font-size: 1rem;
  color: var(--fg-muted);
  line-height: 1.75;
  margin-bottom: 2rem;
  max-width: 480px;
}

.newsletter-form-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.newsletter-input {
  flex: 1;
  min-width: 200px;
  background: var(--bg);
  border: 1px solid var(--border-strong);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 0.9rem;
  padding: 0.75rem 1rem;
  outline: none;
  transition: border-color 0.2s;
}

.newsletter-input::placeholder {
  color: var(--fg-dim);
}

.newsletter-input:focus {
  border-color: var(--accent);
}

.newsletter-btn {
  background: var(--accent);
  color: var(--bg);
  border: none;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.75rem 1.75rem;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  white-space: nowrap;
}

.newsletter-btn:hover {
  background: var(--accent-warm);
}

.newsletter-btn:active {
  transform: translateY(1px);
}

.newsletter-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.newsletter-message {
  font-size: 0.85rem;
  margin-top: 0.75rem;
  min-height: 1.25rem;
  color: var(--fg-muted);
}

.newsletter-message--error {
  color: #c87878;
}

.newsletter-success {
  font-size: 1rem;
  color: var(--accent);
  font-style: italic;
  margin-top: 0.5rem;
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .blog-header {
    padding: 6rem 1.5rem 3rem;
  }

  .blog-index {
    padding: 3rem 1.5rem 5rem;
  }

  .blog-breadcrumb-bar {
    padding: 5rem 1.5rem 0;
  }

  .blog-post-header {
    padding: 2rem 1.5rem 3rem;
  }

  .blog-post-body-section {
    padding: 0 1.5rem 4rem;
  }

  .blog-post-back {
    padding: 0 1.5rem 4rem;
  }

  .newsletter-cta {
    padding: 3rem 1.5rem;
  }

  .newsletter-form-row {
    flex-direction: column;
  }

  .newsletter-btn {
    width: 100%;
    text-align: center;
  }
}