body{font-family:system-ui,sans-serif;margin:0;color:#1a2230;line-height:1.55}header,section,footer{max-width:960px;margin:auto;padding:28px 20px}
nav a{margin-right:16px;color:#1a2230}h1{font-size:2.4em;margin:.2em 0}.cta{background:#0b6bcb;color:#fff;padding:12px 22px;border-radius:8px;text-decoration:none;display:inline-block}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}.card{border:1px solid #dde3ec;border-radius:10px;padding:18px}
.price{font-size:1.8em;font-weight:700}input,textarea{width:100%;padding:9px;margin:4px 0 12px;box-sizing:border-box}footer{font-size:.85em;color:#667}.warn{background:#fff3cd;padding:10px}