:root{--bg:#f7f7f9;--card:#fff;--accent:#0b74de;--text:#222}
*{box-sizing:border-box}
body{font-family:Inter,system-ui,Arial,sans-serif;margin:0;background:var(--bg);color:var(--text);line-height:1.45}
.site-header{background:linear-gradient(90deg,var(--accent),#66a7ff);color:white;padding:48px 16px;text-align:center}
.site-header h1{margin:0 0 8px;font-size:1.6rem}
.content{max-width:900px;margin:28px auto;padding:16px}
.content section{background:var(--card);padding:18px;margin-bottom:12px;border-radius:10px;box-shadow:0 6px 18px rgba(10,10,10,0.06)}
.footer{text-align:center;padding:12px;color:#666;font-size:0.9rem}
code{background:#f3f4f6;padding:2px 6px;border-radius:6px;font-family:monospace}