.tennis-index {
  max-width: 1040px;
}
.tennis-index .guide-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.tennis-index .guide-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.tennis-index .card-link {
  margin-top: auto;
}
.breadcrumb {
  margin-bottom: 24px;
  gap: 4px 12px;
  color: var(--muted);
}
.breadcrumb a {
  text-decoration: underline;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 20px;
  color: var(--muted);
  font-size: 13px;
  margin: 20px 0 0;
}
.article-meta p {
  margin: 0;
}
.article-toc {
  padding: 18px 24px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  margin-bottom: 36px;
}
.article-toc summary {
  cursor: pointer;
  min-height: 44px;
  padding: 7px 0;
  font-weight: 700;
  color: var(--accent);
}
.article-toc summary:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}
.article-toc ol {
  margin: 12px 0 0;
}
.article-toc li {
  margin-bottom: 3px;
}
.article-toc a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 15px;
}
.tennis-article section[id] {
  scroll-margin-top: 24px;
}
.tennis-article h3 {
  font-size: 19px;
  line-height: 1.6;
  margin: 28px 0 12px;
}
.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
  margin: 24px 0;
}
.table-scroll:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}
.tennis-article table {
  width: 100%;
  border-collapse: collapse;
  font-size: 16px;
  line-height: 1.7;
}
.tennis-article caption {
  text-align: left;
  font-weight: 700;
  padding: 16px;
  background: var(--surface);
}
.tennis-article th,
.tennis-article td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
.tennis-article th {
  background: var(--raised);
}
.tennis-article tr:last-child td {
  border-bottom: 0;
}
.sources {
  border-top: 1px solid var(--line);
  margin-top: 44px;
}
.sources li {
  font-size: 15px;
  overflow-wrap: anywhere;
}
.sources p {
  font-size: 17px;
  color: var(--muted);
}
.back-to-tool {
  border-top: 1px solid var(--line);
  padding-top: 18px;
  margin-top: 32px;
}
@media (max-width: 640px) {
  .tennis-index .guide-grid {
    grid-template-columns: 1fr;
  }
  .article-toc {
    padding: 14px 20px;
  }
  .tennis-article th,
  .tennis-article td {
    padding: 10px 12px;
  }
}
@media print {
  .article-toc,
  .breadcrumb,
  .back-to-tool {
    display: none;
  }
  .table-scroll {
    overflow: visible;
  }
}