body{font-family:Arial,sans-serif;background:#fafafa;margin:0}
.container{max-width:1100px;margin:0 auto;padding:24px 16px}
.header{background:#111827;color:#fff;padding:18px 0}
.header h1{margin:0;font-size:28px}
.header p{margin:6px 0 0 0;color:#d1d5db}
.nav a{color:#93c5fd;text-decoration:none;margin-right:10px}
.nav a:hover{text-decoration:underline}
h2{margin-top:26px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px}
.card{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:16px;box-shadow:0 1px 2px rgba(0,0,0,.04)}
.card-title{font-size:16px;font-weight:700;margin-bottom:8px}
.meta{font-size:13px;color:#374151;margin:4px 0}
code,pre{background:#f3f4f6;padding:2px 6px;border-radius:6px}
pre{padding:10px;overflow:auto}
.btn{display:inline-block;padding:10px 12px;border-radius:10px;background:#2563eb;color:#fff;text-decoration:none;font-weight:700;text-align:center}
.btn:hover{background:#1d4ed8}
.btn-secondary{background:#111827}
.btn-secondary:hover{background:#0b1220}
.btnrow{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.section{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:16px}
ul{margin-top:8px}