*{box-sizing:border-box}
body{margin:0;min-height:100vh;display:grid;place-items:center;padding:20px;background:radial-gradient(circle at top right,#21436e,#081329 65%);font-family:Arial,sans-serif}
.login-box{width:100%;max-width:440px;background:#fff;border-radius:22px;padding:42px;box-shadow:0 25px 70px #0005}
.brand{font-size:27px;font-weight:800;color:#132747}
.brand span{color:#079e91}
h1{font-size:27px;margin:35px 0 10px;color:#14243d}
p{color:#74839a;margin-bottom:30px}
label{display:block;font-weight:600;color:#293c58;margin:18px 0 8px}
input{width:100%;padding:15px;border:1px solid #d4deeb;border-radius:10px;font-size:16px}
input:focus{outline:2px solid #17b7a7}
button{width:100%;margin-top:25px;padding:16px;background:#087e77;color:white;border:0;border-radius:11px;font-size:16px;font-weight:bold;cursor:pointer}
button:hover{background:#06665f}
.error{color:#a42632;background:#fff0f1;padding:12px;border-radius:8px;margin-top:18px}
footer{text-align:center;margin-top:30px;color:#8897aa;font-size:12px}
@media(max-width:480px){.login-box{padding:27px}}