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

body{
    background: linear-gradient(135deg,#0f2027,#203a43,#2c5364);
    height:100vh;
    display:flex;
    justify-content:center;
    align-items:center;
}

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

.login-box{
    background:white;
    padding:40px;
    width:380px;
    border-radius:15px;
    box-shadow:0 10px 30px rgba(0,0,0,0.3);
    text-align:center;
}

.login-box h2{
    color:#0f2027;
    margin-bottom:10px;
}

.login-box p{
    color:gray;
    margin-bottom:25px;
}

.input-group{
    text-align:left;
    margin-bottom:18px;
}

.input-group label{
    font-weight:bold;
    display:block;
    margin-bottom:6px;
}

.input-group input{
    width:100%;
    padding:12px;
    border:1px solid #ccc;
    border-radius:8px;
    outline:none;
    transition:0.3s;
}

.input-group input:focus{
    border-color:#007bff;
}

.btn-login{
    width:100%;
    padding:12px;
    background:#007bff;
    color:white;
    border:none;
    border-radius:8px;
    font-size:16px;
    cursor:pointer;
    transition:0.3s;
}

.btn-login:hover{
    background:#0056b3;
}

.btn-register{
    margin-top:12px;
    display:block;
    width:100%;
    padding:12px;
    background:#28a745;
    color:white;
    text-decoration:none;
    border-radius:8px;
    transition:0.3s;
}

.btn-register:hover{
    background:#1e7e34;
}

.error{
    background:#ffdddd;
    color:red;
    padding:10px;
    border-radius:8px;
    margin-bottom:15px;
}