.blog-shell {
  max-width: 900px;
}

.blog-nav {
  margin-bottom: 18px;
}

.blog-post {
  padding: clamp(26px, 5vw, 58px);
}

.post-header {
  margin-bottom: 34px;
  padding-bottom: 20px;
  border-bottom: 1px solid #e5e7eb;
}

.post-header h1 {
  margin: 0;
  color: #111827;
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.12;
  letter-spacing: -0.025em;
}

.post-subtitle {
  margin: 12px 0 0;
  color: #4b5563;
  font-size: 1.15rem;
  line-height: 1.5;
}

.post-meta {
  margin: 14px 0 0;
  color: #9ca3af;
  font-size: 0.9rem;
}

.blog-post p,
.blog-post li {
  font-size: 1.04rem;
  line-height: 1.75;
}

.blog-post h2 {
  margin-top: 2.4em;
  color: #111827;
  font-size: 1.55rem;
}

.blog-post h3 {
  margin-top: 2em;
  color: #1f2937;
}

.blog-post figure {
  margin: 38px auto;
}

.blog-post figure img {
  display: block;
  width: 100%;
  border-radius: 14px;
  background: #0b1021;
  box-shadow: 0 14px 36px rgba(15, 23, 42, 0.15);
}

.blog-post figcaption {
  margin-top: 10px;
  color: #6b7280;
  font-size: 0.88rem;
  text-align: center;
}

/* Prevent wide equations from breaking the mobile layout. */
.blog-post mjx-container[display="true"] {
  overflow-x: auto;
  overflow-y: hidden;
  padding: 0.65rem 0;
}

.blog-post blockquote {
  margin: 30px 0;
  padding: 4px 0 4px 22px;
  border-left: 3px solid #0f766e;
  color: #374151;
  font-size: 1.1rem;
}

@media (max-width: 720px) {
  .blog-post {
    padding: 24px 18px;
  }

  .post-header h1 {
    font-size: 2rem;
  }
}