/* Central de ajuda */
.topic-card { background: #FFFFFF; border: 1px solid #ECECEC; border-radius: 16px; padding: 28px; }
.topic-card:hover { border-color: #D4D4D8; }
.article-row { display: flex; align-items: center; justify-content: space-between; padding: 16px 0; border-bottom: 1px solid #ECECEC; }

.articles { background: #FFFFFF; border: 1px solid #ECECEC; border-radius: 16px; padding: 4px 28px; margin-top: 20px; }
.article { border-bottom: 1px solid #ECECEC; }
.article:last-child { border-bottom: none; }
.article summary { list-style: none; cursor: pointer; padding: 16px 0; font-size: 15px; font-weight: 500; display: flex; justify-content: space-between; gap: 12px; }
.article summary::-webkit-details-marker { display: none; }
.article summary::after { content: "+"; color: var(--accent); font-weight: 600; font-size: 18px; line-height: 1; }
.article[open] summary::after { content: "–"; }
.article-body { padding: 0 0 18px; font-size: 14px; color: #3F3F46; line-height: 1.65; }
.article-body p { margin: 0 0 10px; }
.article-body a { color: var(--accent); font-weight: 600; }
.article-body h4 { margin: 18px 0 8px; font-size: 14px; font-weight: 600; color: #18181B; }
.article-body code { background: #F4F4F5; padding: 1px 6px; border-radius: 4px; font-size: 13px; }
.article:target summary { color: var(--accent); }
.no-results { font-size: 14px; color: #71717A; margin-top: 16px; }

@media (max-width: 900px) {
  .topics-grid { grid-template-columns: 1fr !important; }
}