*{box-sizing:border-box;margin:0;padding:0;font-family:Arial,sans-serif}body{background:linear-gradient(90deg,#dbeafe,#f0fdf4);min-height:100vh}.container{text-align:center;width:90%;max-width:900px;margin:auto;padding:40px 0}h1{color:#1e3a8a;margin-bottom:10px}.subtitle{color:#475569;margin-bottom:25px}.form{background:#fff;border-radius:15px;gap:15px;padding:25px;display:grid;box-shadow:0 8px 25px #0000001a}input{border:1px solid #cbd5e1;border-radius:8px;padding:12px;font-size:16px}button{color:#fff;cursor:pointer;background:#2563eb;border:none;border-radius:8px;padding:12px;font-size:16px}button:hover{background:#1d4ed8}.message{color:#166534;margin:20px 0;font-weight:700}.cards{grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:20px;margin-top:25px;display:grid}.card{text-align:left;background:#fff;border-radius:15px;padding:20px;box-shadow:0 8px 25px #0000001a}.card h2{color:#1e40af;margin-bottom:10px}.card p{margin-bottom:8px}.card button{background:#dc2626;width:100%;margin-top:10px}.card button:hover{background:#b91c1c}