body{margin:0;font-family:Arial,Helvetica,sans-serif;background:#f5f7fb;color:#111827}
.header{background:#111827;color:white;padding:28px}
.header h1{margin:0}
.header p{color:#d1d5db;margin-bottom:0}
.nav{background:white;border-bottom:1px solid #e5e7eb;padding:14px 24px;display:flex;gap:10px;flex-wrap:wrap}
.nav a{text-decoration:none;color:#111827;border:1px solid #e5e7eb;padding:10px 14px;border-radius:999px}
.container{max-width:1120px;margin:24px auto;padding:0 18px}
.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:18px}
.card{background:white;border:1px solid #e5e7eb;border-radius:18px;padding:22px;box-shadow:0 8px 24px rgba(17,24,39,.05)}
.full{grid-column:span 12}.half{grid-column:span 6}.third{grid-column:span 4}
.badge{display:inline-block;background:#eef2ff;border-radius:999px;padding:6px 10px;margin:4px 4px 4px 0;font-size:13px}
.success{background:#ecfdf3}.warning{background:#fff7ed}
.button{display:inline-block;background:#111827;color:white;text-decoration:none;border-radius:12px;padding:12px 16px;margin:6px 6px 6px 0;font-weight:bold}
.button.secondary{background:#e5e7eb;color:#111827}
.codebox{background:#111827;color:white;padding:14px;border-radius:12px;overflow-x:auto;font-family:monospace}
.kv{display:grid;grid-template-columns:190px 1fr;gap:8px;margin:10px 0}
.small{color:#6b7280;line-height:1.5}
input{width:100%;padding:12px;border-radius:10px;border:1px solid #d1d5db}
@media(max-width:760px){.half,.third{grid-column:span 12}.kv{grid-template-columns:1fr}}