/* ==== ClosedLoop AI blog ==== */
.blog-main { padding: 130px 0 90px; }
.nav-links-static { display: flex !important; position: static !important; flex-direction: row !important; background: none !important; border: 0 !important; padding: 0 !important; }
@media (max-width: 640px) {
  .nav-links-static { gap: 16px; }
  .nav-links-static a { padding: 0; font-size: 0.88rem; }
  .nav-links-static .nav-cta { display: none; }
}

/* blog index */
.blog-head { max-width: 640px; margin-bottom: 48px; }
.blog-head h1 { font-size: clamp(2.1rem, 4.5vw, 3.2rem); margin: 10px 0 16px; }
.blog-head p { color: var(--muted); font-size: 1.1rem; }
.post-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
@media (max-width: 800px) { .post-grid { grid-template-columns: 1fr; } }
.post-card {
  display: block; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px;
  transition: transform 0.25s, border-color 0.25s;
}
.post-card:hover { transform: translateY(-3px); border-color: rgba(129, 140, 248, 0.4); }
.post-card h2 { font-size: 1.22rem; margin: 12px 0 10px; line-height: 1.3; }
.post-card p { color: var(--muted); font-size: 0.93rem; }
.post-card-meta { color: var(--muted); font-size: 0.82rem; margin-top: 14px; opacity: 0.8; }

.post-tag {
  display: inline-block; font-family: var(--font-mono); font-size: 0.7rem;
  letter-spacing: 0.12em; text-transform: uppercase;
  padding: 4px 10px; border-radius: 999px; border: 1px solid;
}
.tag-problem { color: #fbbf24; border-color: rgba(251, 191, 36, 0.35); background: rgba(251, 191, 36, 0.07); }
.tag-solution { color: var(--teal); border-color: rgba(94, 234, 212, 0.35); background: rgba(94, 234, 212, 0.07); }
.tag-perspective { color: var(--violet); border-color: rgba(129, 140, 248, 0.4); background: rgba(129, 140, 248, 0.08); }

/* post page */
.post { max-width: 720px; margin: 0 auto; }
.crumbs { font-size: 0.85rem; color: var(--muted); margin-bottom: 22px; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--text); }
.post h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); margin: 14px 0 16px; line-height: 1.18; }
.post-meta { display: flex; gap: 8px; flex-wrap: wrap; color: var(--muted); font-size: 0.9rem; margin-bottom: 30px; }
.post-meta a { color: var(--teal); }

.tldr {
  background: rgba(94, 234, 212, 0.05); border: 1px solid rgba(94, 234, 212, 0.25);
  border-radius: 14px; padding: 20px 24px; margin: 0 0 34px;
}
.tldr-label { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.16em; color: var(--teal); margin-bottom: 10px; }
.tldr ul { margin: 0; padding-left: 20px; }
.tldr li { color: var(--text); font-size: 0.95rem; margin-bottom: 7px; }

.post-body p { margin-bottom: 1.15em; color: #c6cede; }
.post-body strong { color: var(--text); }
.post-body h2 { font-size: 1.45rem; margin: 1.7em 0 0.6em; }
.post-body ul { margin: 0 0 1.15em; padding-left: 22px; color: #c6cede; }
.post-body li { margin-bottom: 0.5em; }
.post-body a { color: var(--teal); text-decoration: underline; text-decoration-color: rgba(94, 234, 212, 0.35); text-underline-offset: 3px; }
.post-body a:hover { text-decoration-color: var(--teal); }
.post-body em { color: #dde3ee; }

.faq { margin: 44px 0 0; }
.faq h2 { font-size: 1.35rem; margin-bottom: 16px; }
.faq-item { border: 1px solid var(--line); border-radius: 12px; margin-bottom: 10px; background: var(--surface); }
.faq-item summary { cursor: pointer; padding: 15px 18px; font-weight: 600; font-size: 0.98rem; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; float: right; color: var(--teal); font-size: 1.1rem; }
.faq-item[open] summary::after { content: "–"; }
.faq-item p { padding: 0 18px 16px; color: var(--muted); font-size: 0.94rem; margin: 0; }

.author-box {
  display: flex; gap: 16px; align-items: flex-start;
  background: var(--surface); border: 1px solid var(--line); border-radius: 14px;
  padding: 22px; margin: 44px 0 0;
}
.author-avatar {
  width: 52px; height: 52px; border-radius: 50%; flex-shrink: 0;
  background: linear-gradient(120deg, rgba(94,234,212,.2), rgba(129,140,248,.2));
  border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-head); font-weight: 700; color: var(--teal);
}
.author-box p { color: var(--muted); font-size: 0.9rem; margin: 5px 0 8px; }
.author-box a { color: var(--teal); font-size: 0.88rem; }

.post-cta {
  text-align: center; background: var(--surface); border: 1px solid rgba(94, 234, 212, 0.25);
  border-radius: 16px; padding: 36px 28px; margin: 36px 0 0;
}
.post-cta h2 { font-size: 1.4rem; margin-bottom: 10px; }
.post-cta p { color: var(--muted); max-width: 460px; margin: 0 auto 20px; font-size: 0.96rem; }

.related { margin-top: 48px; }
.related h2 { font-size: 1.3rem; margin-bottom: 16px; }
.related-grid { display: grid; grid-template-columns: 1fr; gap: 12px; }
.related-card {
  display: block; background: var(--surface); border: 1px solid var(--line);
  border-radius: 12px; padding: 16px 18px; transition: border-color 0.2s;
}
.related-card:hover { border-color: rgba(129, 140, 248, 0.4); }
.related-card strong { display: block; margin-top: 8px; font-size: 0.98rem; font-weight: 600; }