*{
margin:0;
padding:0;
box-sizing:border-box;
}

body{


font-family:'Poppins',sans-serif;

background:
linear-gradient(
135deg,
#0f172a,
#2563eb);

min-height:100vh;

display:flex;

justify-content:center;

align-items:center;

padding:15px;


}

.login-card{


width:100%;
max-width:420px;

background:#fff;

border-radius:30px;

padding:35px;

box-shadow:
0 20px 60px rgba(0,0,0,.25);


}

.logo{


width:90px;
height:90px;

border-radius:50%;

background:#2563eb;

color:#fff;

display:flex;
justify-content:center;
align-items:center;

font-size:40px;

margin:auto;


}

h1{


text-align:center;

margin-top:15px;

color:#0f172a;


}

.subtitle{


text-align:center;

color:#64748b;

margin-bottom:20px;


}

.msg{


display:block;

text-align:center;

margin-bottom:12px;

padding:12px;

border-radius:10px;


}

.error{


background:#fee2e2;

color:#991b1b;


}

.txt{


width:100%;

height:50px;

border:1px solid #dbe3ee;

border-radius:12px;

padding:0 15px;

margin-bottom:12px;

font-size:14px;


}

.txt:focus{


outline:none;

border-color:#2563eb;


}

.btn-login{


width:100%;

height:52px;

border:none;

border-radius:14px;

background:#2563eb;

color:#fff;

font-size:16px;

cursor:pointer;


}

.register-link,
.back-link{


display:block;

text-align:center;

margin-top:15px;

text-decoration:none;

font-weight:600;


}

.register-link{


color:#2563eb;


}

.back-link{


color:#64748b;


}

@media(max-width:768px){


.login-card{

    padding:25px;

    border-radius:22px;
}


}