/* Shared responsive refinements for article detail pages */
.article-container {
  max-width: 100%;
}

.article-content img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  margin-bottom: 1.5rem;
}

.article-content p {
  margin-bottom: 1.8rem;
  font-size: 1.12rem;
  text-align: justify;
  color: #475569;
  line-height: 1.95;
  letter-spacing: 0.01em;
}
.article-content p + p {
  margin-top: -0.2rem;
}
.article-content ul,
.article-content ol {
  margin-bottom: 2.4rem;
}
.article-content li {
  line-height: 1.85;
}

.toc-box {
  transition: box-shadow 0.2s ease;
}

.toc-box:focus-within,
.toc-box:hover {
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.08);
}

@media (max-width: 1200px) {
  .article-container {
    padding: 40px;
  }
  .cta-box {
    padding: 3rem;
  }
}

@media (max-width: 992px) {
  .article-header {
    padding: 3.5rem 0;
  }
  .article-container {
    padding: 32px 28px;
    border-radius: 18px;
  }
  .article-content p {
    font-size: 1.05rem;
    line-height: 1.9;
  }
  .article-content li {
    font-size: 1rem;
  }
  .article-content ul,
  .article-content ol {
    padding: 1.8rem 2rem;
  }
  .toc-box {
    position: static !important;
    margin-top: 2.5rem;
    padding: 1.5rem;
  }
  .toc-title {
    font-size: 1.1rem;
  }
  .cta-box {
    padding: 2.5rem;
  }
}

@media (max-width: 768px) {
  .article-header {
    text-align: center;
  }
  .article-header .breadcrumb {
    justify-content: center;
  }
  .article-container {
    padding: 26px 22px;
    border-radius: 16px;
  }
  .article-content h2 {
    font-size: 1.35rem;
  }
  .article-content h3 {
    font-size: 1.15rem;
  }
  .article-content ul,
  .article-content ol {
    padding: 1.4rem;
  }
  .cta-box p {
    font-size: 1.05rem;
  }
  .btn-cta {
    display: block;
    width: 100%;
    text-align: center;
  }
}

@media (max-width: 576px) {
  body {
    font-size: 0.95rem;
  }
  .article-header {
    padding: 2.5rem 0;
  }
  .article-container {
    padding: 20px 18px;
    border-radius: 14px;
  }
  .article-content h2 {
    font-size: 1.2rem;
  }
  .article-content p {
    font-size: 1rem;
    line-height: 1.7;
    text-align: left;
  }
  .article-content ul,
  .article-content ol {
    padding: 1.2rem;
  }
  .cta-box {
    padding: 2rem 1.25rem;
  }
  .toc-box {
    padding: 1.25rem;
  }
  .toc-list li {
    margin-bottom: 0.6rem;
  }
}