*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 18px;
  line-height: 1.75;
  color: #1A1A1A;
  background: #fff;
  padding-bottom: 80px;
}

/* Header */
.site-header {
  padding: 1.25rem 2rem;
  border-bottom: 1px solid #eee;
}

.site-logo {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  color: #1A1A1A;
  text-decoration: none;
  letter-spacing: -0.01em;
}

.site-logo:hover { color: #C0392B; }

/* Main */
main {
  max-width: 680px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

/* Homepage — author bio */
.author-bio {
  margin-bottom: 3.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 2px solid #C0392B;
}

.author-name {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.3rem;
}

.author-credential {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.8rem;
  color: #C0392B;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 700;
  margin-bottom: 1rem;
}

.author-bio-text {
  font-size: 1.05rem;
  color: #444;
  line-height: 1.7;
}

/* Homepage — article list */
.articles-label {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #999;
  margin-bottom: 1.25rem;
}

.article-item {
  padding: 1.25rem 0;
  border-bottom: 1px solid #eee;
}

.article-title {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: #1A1A1A;
  text-decoration: none;
  line-height: 1.4;
  display: block;
}

.article-title:hover { color: #C0392B; }

.article-desc {
  font-size: 0.9rem;
  color: #666;
  margin-top: 0.3rem;
}

/* Single post */
.post-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid #eee;
}

.post-title {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 0.75rem;
}

.post-date {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.8rem;
  color: #999;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.post-content h2 {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  margin: 2.5rem 0 1rem;
  color: #1A1A1A;
  letter-spacing: -0.01em;
}

.post-content p {
  margin-bottom: 1.4rem;
}

.post-content strong { font-weight: 700; }
.post-content em { font-style: italic; }

.post-content a {
  color: #C0392B;
  text-decoration: underline;
}

.post-content hr {
  border: none;
  border-top: 1px solid #eee;
  margin: 2rem 0;
}

.post-footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 2px solid #C0392B;
}

.author-byline strong {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1rem;
  font-weight: 700;
  display: block;
  margin-bottom: 0.25rem;
}

.author-credential-small {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.8rem;
  color: #C0392B;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 700;
}

/* Sticky CTA bar */
.cta-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #1A1A1A;
  color: #fff;
  padding: 0.85rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  z-index: 100;
  border-top: 2px solid #C0392B;
}

.cta-bar span {
  font-family: Georgia, serif;
  font-size: 0.88rem;
  color: #bbb;
  display: none;
}

.cta-button {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  background: #C0392B;
  color: #fff;
  text-decoration: none;
  padding: 0.55rem 1.35rem;
  border-radius: 3px;
  white-space: nowrap;
  transition: background 0.15s;
  flex-shrink: 0;
}

.cta-button:hover { background: #a93226; }

/* Responsive */
@media (min-width: 600px) {
  .cta-bar span { display: block; }
}

@media (max-width: 600px) {
  body { font-size: 16px; }
  main { padding: 2rem 1.25rem; }
  .post-title { font-size: 1.6rem; }
  .author-name { font-size: 1.5rem; }
  .site-header { padding: 1rem 1.25rem; }
  .cta-bar { padding: 0.85rem 1.25rem; justify-content: flex-end; }
}