*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:#1d2433;line-height:1.6;background:#fafbfc}
.w{max-width:860px;margin:0 auto;padding:0 20px}header{background:#123c69;color:#fff;padding:48px 0}header h1{font-size:2rem;margin:.2em 0}
section{padding:36px 0;border-bottom:1px solid #e5e8ee}h2{color:#123c69}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.card{background:#fff;border:1px solid #dde2ea;border-radius:10px;padding:20px}.price{font-size:2rem;font-weight:700}
.btn{display:inline-block;background:#e4572e;color:#fff;padding:12px 20px;border-radius:8px;text-decoration:none;font-weight:600}.btn.alt{background:#fff;color:#123c69}
details{background:#fff;border:1px solid #dde2ea;border-radius:8px;padding:12px 16px;margin:8px 0}summary{font-weight:600;cursor:pointer}footer{padding:28px 0;font-size:.9rem;color:#556}