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

body{
background:
linear-gradient(
135deg,
#0f172a,
#1e293b,
#0ea5e9
);
height:100vh;
display:flex;
justify-content:center;
align-items:center;
}

.register-container{
width:100%;
display:flex;
justify-content:center;
align-items:center;
}

.register-card{
width:420px;
background:white;
padding:35px;
border-radius:20px;
box-shadow:
0 15px 40px rgba(0,0,0,.3);
}

.register-card h1{
text-align:center;
margin-bottom:10px;
color:#0f172a;
}

.register-card h3{
text-align:center;
margin-bottom:25px;
color:#64748b;
}

.register-card input,
.register-card select{
width:100%;
padding:12px;
margin-bottom:15px;
border:1px solid #cbd5e1;
border-radius:10px;
}

.register-card button{
width:100%;
padding:14px;
border:none;
border-radius:10px;
background:#0ea5e9;
color:white;
font-size:16px;
cursor:pointer;
}

.register-card button:hover{
background:#0284c7;
}

.alert{
background:#dcfce7;
padding:10px;
border-radius:10px;
margin-bottom:15px;
text-align:center;
}