*{box-sizing:border-box}body{margin:0;min-height:100vh;display:grid;place-items:center;font-family:Arial,Helvetica,sans-serif;background:linear-gradient(135deg,#367b3c,#46a049);color:#111827}.login-card{width:min(420px,92vw);background:white;border-radius:22px;padding:28px;box-shadow:0 12px 32px #0003;text-align:center}input{width:100%;padding:14px;border:1px solid #cfd6df;border-radius:12px;margin:8px 0}button,.btn{width:100%;border:0;border-radius:12px;background:#367b3c;color:white;padding:13px;margin:8px 0;text-decoration:none;display:block;cursor:pointer}a{color:#367b3c}