:root{
  --bg: #ffffff;
  --text: #0f172a;
  --muted: #6b7280;
  --accent: #0ea5a4;
  --max-width: 900px;
  --radius: 10px;
}

@media (prefers-color-scheme: dark){
  :root{
    --bg: #071122;
    --text: #e6eef6;
    --muted: #9aa7b2;
    --accent: #34d399;
  }
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  background:var(--bg);
  color:var(--text);
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
.container{
  max-width:var(--max-width);
  margin:48px auto;
  padding:0 20px;
}
.header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.header.center-title {justify-content:center}
.header.center-title .site-title {text-align:center}
.header.center-title .brand {justify-content:center}
.header.center-title .site-desc {text-align:center;margin-left:0;margin-right:0}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
}
.logo{
  width:48px;height:48px;border-radius:12px;background:linear-gradient(135deg,var(--accent),#60a5fa);
  display:flex;align-items:center;justify-content:center;color:var(--bg);font-weight:700
}
.site-title{font-size:1.25rem;margin:0}
.site-desc{color:var(--muted);font-size:0.95rem;margin:4px 0 0}
.hero{
  margin-top:28px;
  padding:28px;
  border-radius:var(--radius);
  background: linear-gradient(180deg, rgba(14,165,164,0.05), transparent);
}
.hero h1{margin:0;font-size:2rem}
.hero p{color:var(--muted);margin-top:8px}
.posts{margin-top:24px;display:grid;gap:12px}
.post{padding:0;border-radius:8px;background:transparent}
.post-link{display:block;padding:16px;border-radius:8px;border:1px solid rgba(0,0,0,0.05);text-decoration:none;color:inherit;background:transparent;transition:box-shadow .15s ease,transform .12s ease}
.post-link:hover{box-shadow:0 6px 18px rgba(2,6,23,0.08);transform:translateY(-2px)}
.post-title{font-weight:600;color:var(--text)}
.post-meta{color:var(--muted);font-size:0.9rem;margin-top:6px}
.footer{margin:48px 0 24px;color:var(--muted);font-size:0.9rem}

@media (max-width:600px){
  .container{margin:24px auto;padding:0 16px}
  .hero h1{font-size:1.5rem}
  /* Stack header vertically on small screens when centered */
  .header.center-title{flex-direction:column;gap:8px}
}