:root {
  --ef-reading-font: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --ef-reading-text: #26332e;
  --ef-reading-muted: #64736d;
  --ef-reading-green: #136e42;
  --ef-reading-border: #dfe8e3;
  --ef-reading-soft: #f6faf8;
}

html { scroll-behavior: smooth; }

body,
button,
input,
select,
textarea,
.ef-blog-header-v4,
.ef-landing-footer {
  font-family: var(--ef-reading-font) !important;
}

body { color: var(--ef-reading-text); }

.single-post .site-content {
  width: min(100%, 1180px);
  margin-inline: auto;
  padding-inline: 24px;
}

.single-post .content-area,
.single-post .site-main { width: 100% !important; }

.single-post .inside-article {
  padding: 44px 52px;
  border: 1px solid #edf1ef;
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 8px 28px rgba(22, 58, 45, .045);
}

.single-post .entry-title {
  margin-bottom: .55rem;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.15;
  letter-spacing: -.025em;
}

.single-post .entry-content {
  color: var(--ef-reading-text);
  font-size: 18px;
  font-weight: 400;
  line-height: 1.76;
}

.single-post .entry-content p { margin: 0 0 1.35em; }

.single-post .entry-content h2,
.single-post .entry-content h3 {
  margin-top: 2.1em;
  margin-bottom: .65em;
  line-height: 1.28;
  letter-spacing: -.015em;
}

.single-post .entry-content h2 { font-size: clamp(1.55rem, 3vw, 2rem); }
.single-post .entry-content h3 { font-size: clamp(1.25rem, 2.4vw, 1.55rem); }

.single-post .entry-content a {
  color: #0d6b3d;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.single-post .entry-content img {
  height: auto;
  border-radius: 10px;
}

.single-post .entry-content table {
  display: block;
  max-width: 100%;
  overflow-x: auto;
  font-size: .94em;
}

.ef-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
  margin-bottom: 1.2rem;
  color: var(--ef-reading-muted);
  font-size: .85rem;
}

.ef-breadcrumb a { color: var(--ef-reading-green); text-decoration: none; }
.ef-breadcrumb a:hover { text-decoration: underline; }

.single-post #toc_container {
  width: 100% !important;
  box-sizing: border-box;
  margin: 1.5rem 0 2rem;
  padding: 1.15rem 1.3rem;
  border: 1px solid var(--ef-reading-border);
  border-radius: 10px;
  background: var(--ef-reading-soft);
  box-shadow: none;
}

.ef-related {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--ef-reading-border);
}

.ef-related h2 {
  margin: 0 0 1rem;
  color: #173f35;
  font-size: 1.45rem;
}

.ef-related-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.ef-related-card {
  display: block;
  padding: 16px;
  border: 1px solid var(--ef-reading-border);
  border-radius: 10px;
  color: var(--ef-reading-text) !important;
  background: #fff;
  text-decoration: none !important;
  transition: border-color .18s ease, background-color .18s ease;
}

.ef-related-card:hover { border-color: #9bc9b1; background: var(--ef-reading-soft); }
.ef-related-card strong { display: block; margin-bottom: .4rem; color: var(--ef-reading-green); line-height: 1.35; }
.ef-related-card span { display: block; color: var(--ef-reading-muted); font-size: .9rem; line-height: 1.5; }

.single-post .entry-meta {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--ef-reading-border);
  color: var(--ef-reading-muted);
  font-size: .82rem;
  line-height: 1.55;
}

.single-post .entry-meta a { color: #3f6f5d; }

.addtoany_share_save_container,
.rmp-widgets-container,
.comments-area,
#chatbot-bubble,
#chatbot-window,
#temario-blog { display: none !important; }

@media (max-width: 720px) {
  .single-post .site-content { padding-inline: 12px; }
  .single-post .inside-article { padding: 28px 20px; border-radius: 10px; }
  .single-post .entry-content { font-size: 17px; line-height: 1.72; }
  .ef-related-grid { grid-template-columns: 1fr; }
}