html,body{margin:0;height:100%}body{display:flex;align-items:center;justify-content:center;background:#1f2a1a;font-family:'Segoe UI',Roboto,Arial,sans-serif;color:#1a1a1a}.card{max-width:560px;margin:1.5rem;padding:2.5rem 2rem;background:#fff;border-top:6px solid #3cab00;box-shadow:0 10px 30px rgba(0,0,0,.15);text-align:center}.card img{max-width:180px;height:auto;margin:0 auto 1.5rem;display:block}h1{font-size:1.5rem;margin:0 0 1rem;color:#3cab00}p{font-size:1.05rem;line-height:1.6;margin:0}