:root { color-scheme: dark; }

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

body {
  background: #0a0a0a;
  color: #f5f5f5;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.7;
  font-size: 17px;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px;
}

.site-header {
  padding: 32px 24px 0;
  max-width: 720px;
  margin: 0 auto;
}

.logo {
  color: #f5f5f5;
  text-decoration: none;
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -0.3px;
}
.logo:hover { color: #e5e5e5; }

.hero {
  padding: 40px 0 32px;
}

.hero h1 {
  font-size: 28px;
  font-weight: 500;
  letter-spacing: -0.5px;
  color: #f5f5f5;
}

.subtitle {
  margin-top: 8px;
  font-size: 16px;
  color: #a3a3a3;
  max-width: 560px;
}

/* Post list */
.post-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding-bottom: 48px;
}

.post-card {
  display: block;
  background: #111;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 20px;
  padding: 28px 28px 24px;
  text-decoration: none;
  transition: border-color 0.15s ease;
}
.post-card:hover { border-color: rgba(255,255,255,0.18); }

.post-card time {
  font-size: 13px;
  color: #737373;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.post-card h2 {
  margin-top: 12px;
  font-size: 20px;
  font-weight: 500;
  color: #f5f5f5;
  letter-spacing: -0.3px;
  line-height: 1.35;
}

.post-card p {
  margin-top: 8px;
  font-size: 15px;
  color: #a3a3a3;
  line-height: 1.55;
}

.read-time {
  display: inline-block;
  margin-top: 14px;
  font-size: 13px;
  color: #525252;
}

/* Article */
article {
  padding: 40px 0 48px;
}

article time {
  font-size: 13px;
  color: #737373;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

article h1 {
  margin-top: 12px;
  font-size: 32px;
  font-weight: 500;
  letter-spacing: -0.5px;
  color: #f5f5f5;
  line-height: 1.25;
}

article h2 {
  margin-top: 36px;
  font-size: 22px;
  font-weight: 500;
  color: #f5f5f5;
  letter-spacing: -0.3px;
}

article h3 {
  margin-top: 24px;
  font-size: 18px;
  font-weight: 500;
  color: #e5e5e5;
}

article p {
  margin-top: 16px;
  color: #d4d4d4;
}

article ul, article ol {
  margin-top: 14px;
  padding-left: 24px;
  color: #d4d4d4;
}

article li {
  margin-top: 8px;
}

article code {
  background: #1a1a1a;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
}

article blockquote {
  margin-top: 20px;
  padding-left: 20px;
  border-left: 2px solid rgba(255,255,255,0.15);
  color: #a3a3a3;
  font-style: italic;
}

.cta-box {
  margin-top: 36px;
  background: #111;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 20px;
  padding: 24px 28px;
}

.cta-box p {
  color: #d4d4d4;
  margin-top: 6px;
  font-size: 15px;
}

.cta-box a {
  display: inline-block;
  margin-top: 12px;
  padding: 10px 22px;
  border-radius: 999px;
  background: #f5f5f5;
  color: #0a0a0a;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
}
.cta-box a:hover { background: #e5e5e5; }

.back-link {
  display: inline-block;
  margin-bottom: 16px;
  font-size: 14px;
  color: #737373;
  text-decoration: none;
}
.back-link:hover { color: #a3a3a3; }

.site-footer {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 32px 0 40px;
  font-size: 13px;
  color: #737373;
}

.site-footer a {
  color: #a3a3a3;
  text-decoration: none;
}
.site-footer a:hover { color: #d4d4d4; }

.disclaimer {
  margin-top: 10px;
  color: #525252;
  font-size: 12px;
}

.byline {
  margin-top: 6px;
  font-size: 14px;
  color: #525252;
}

@media (max-width: 600px) {
  .hero { padding: 24px 0 28px; }
  .hero h1 { font-size: 24px; }
  article h1 { font-size: 26px; }
  article h2 { font-size: 20px; }
  .post-card { padding: 22px 20px 20px; }
}