/* ========================================
   Article Header
   ======================================== */
.article__header {
  padding: 140px 40px 48px;
  background: var(--blue-light);
}

.article__header-inner {
  max-width: 780px;
  margin: 0 auto;
}

.article__breadcrumb {
  font-size: 0.75rem;
  color: var(--gray-text);
  margin-bottom: 16px;
}

.article__breadcrumb a {
  transition: color var(--transition);
}

.article__breadcrumb a:hover {
  color: var(--blue);
}

.article__breadcrumb span {
  margin: 0 6px;
}

.article__date {
  font-size: 0.8125rem;
  color: var(--gray-text);
  font-family: 'Lato', sans-serif;
}

.article__title {
  font-size: 1.75rem;
  font-weight: 900;
  line-height: 1.5;
  margin-top: 12px;
}

/* ========================================
   Article Body
   ======================================== */
.article__body {
  padding: 48px 40px 100px;
}

.article__content {
  max-width: 780px;
  margin: 0 auto;
}

.article__content h2 {
  font-size: 1.375rem;
  font-weight: 900;
  margin-top: 56px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--blue);
}

.article__content h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-top: 36px;
  margin-bottom: 12px;
  padding-left: 14px;
  border-left: 3px solid var(--blue);
}

.article__content p {
  margin-bottom: 16px;
  line-height: 2;
  color: var(--black);
}

.article__content a:not(.btn) {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: opacity var(--transition);
}

.article__content a:not(.btn):hover {
  opacity: 0.7;
}

.article__content ul {
  margin-bottom: 16px;
  padding-left: 1.5em;
}

.article__content li {
  margin-bottom: 10px;
  line-height: 1.9;
}

/* ========================================
   Table of Contents
   ======================================== */
.article__toc {
  background: var(--gray-light);
  border-radius: var(--radius);
  padding: 28px 32px;
  margin-bottom: 48px;
}

.article__toc-title {
  font-weight: 700;
  font-size: 0.9375rem;
  margin-bottom: 12px;
}

.article__toc ol {
  padding-left: 1.5em;
  margin: 0;
}

.article__toc li {
  margin-bottom: 6px;
  font-size: 0.875rem;
  line-height: 1.7;
}

.article__toc a {
  color: var(--blue);
  transition: opacity var(--transition);
}

.article__toc a:hover {
  opacity: 0.7;
}

/* ========================================
   Table
   ======================================== */
.article__table-wrap {
  overflow-x: auto;
  margin-bottom: 24px;
}

.article__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.article__table th,
.article__table td {
  padding: 14px 16px;
  border: 1px solid var(--gray-border);
  text-align: left;
  line-height: 1.6;
}

.article__table thead th {
  background: var(--blue);
  color: var(--white);
  font-weight: 700;
}

.article__table thead th:first-child {
  width: 20%;
}

.article__table tbody tr:nth-child(even) {
  background: var(--gray-light);
}

/* ========================================
   FAQ
   ======================================== */
.article__faq {
  margin-top: 16px;
}

.article__faq-item {
  border: 1px solid var(--gray-border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}

.article__faq-item summary {
  padding: 18px 24px;
  font-weight: 700;
  font-size: 0.9375rem;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 48px;
}

.article__faq-item summary::-webkit-details-marker {
  display: none;
}

.article__faq-item summary::after {
  content: '+';
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.25rem;
  color: var(--blue);
  font-weight: 400;
}

.article__faq-item[open] summary::after {
  content: '−';
}

.article__faq-item p {
  padding: 0 24px 18px;
  font-size: 0.9375rem;
  margin-bottom: 0;
}

/* ========================================
   CTA
   ======================================== */
.article__cta {
  margin-top: 64px;
  padding: 40px;
  background: var(--blue-light);
  border-radius: var(--radius-lg);
  text-align: center;
}

.article__cta-title {
  font-size: 1.25rem;
  font-weight: 900;
  margin-bottom: 8px;
}

.article__cta-desc {
  color: var(--gray-text);
  font-size: 0.9375rem;
  margin-bottom: 24px;
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 768px) {
  .article__header {
    padding: 120px 20px 36px;
  }

  .article__title {
    font-size: 1.375rem;
  }

  .article__body {
    padding: 36px 20px 80px;
  }

  .article__content h2 {
    font-size: 1.25rem;
    margin-top: 44px;
  }

  .article__content h3 {
    font-size: 1rem;
  }

  .article__toc {
    padding: 20px 24px;
  }

  .article__cta {
    padding: 32px 24px;
  }
}