*{
margin:0;
padding:0;
box-sizing:border-box;
font-family:'Poppins',sans-serif;
}

body{

height:100vh;

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

background:
linear-gradient(135deg,#020617,#0f172a,#1e3a8a);

overflow:hidden;

}

body::before{

content:'';

position:absolute;

width:450px;
height:450px;

background:#2563eb;

border-radius:50%;

filter:blur(180px);

top:-150px;
left:-150px;

opacity:.45;

}

body::after{

content:'';

position:absolute;

width:350px;
height:350px;

background:#06b6d4;

border-radius:50%;

filter:blur(180px);

bottom:-150px;
right:-100px;

opacity:.30;

}

.login-box{

position:relative;

width:380px;
max-width:92%;

padding:40px;

background:rgba(15,23,42,.92);

border:1px solid rgba(255,255,255,.08);

border-radius:18px;

backdrop-filter:blur(18px);

box-shadow:0 0 40px rgba(0,0,0,.4);

z-index:1;

}

.logo{

text-align:center;

font-size:40px;

color:#3b82f6;

margin-bottom:10px;

}

h1{

text-align:center;

color:white;

font-size:28px;

font-weight:700;

}

.subtitle{

text-align:center;

margin-bottom:35px;

color:#94a3b8;

font-size:14px;

}

.input-group{

position:relative;

margin-bottom:20px;

}

.input-group i{

position:absolute;

left:15px;
top:16px;

color:#94a3b8;

}

input{

width:100%;

padding:14px 15px 14px 45px;

border:none;

outline:none;

border-radius:10px;

background:#1e293b;

color:white;

font-size:15px;

transition:.3s;

}

input:focus{

box-shadow:0 0 12px #2563eb;

}

button{

width:100%;

padding:14px;

border:none;

border-radius:10px;

background:#2563eb;

color:white;

font-size:16px;

font-weight:600;

cursor:pointer;

transition:.3s;

}

button:hover{

background:#1d4ed8;

transform:translateY(-2px);

box-shadow:0 0 18px rgba(37,99,235,.6);

}

#error{

margin-top:15px;

text-align:center;

color:#ef4444;

font-size:14px;

height:20px;

}

.footer{

margin-top:25px;

text-align:center;

font-size:12px;

color:#64748b;

}

@media(max-width:500px){

.login-box{

padding:30px 25px;

}

h1{

font-size:24px;

}

}