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

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

.login-box{
    width:400px;
    max-width:90%;
    background:#fff;
    padding:35px;
    border-radius:20px;
    box-shadow:0 20px 40px rgba(0,0,0,.25);
}

.logo{
    text-align:center;
    font-size:28px;
    font-weight:800;
    margin-bottom:10px;
}

.logo span{
    color:#2563eb;
}

.subtitle{
    text-align:center;
    color:#666;
    margin-bottom:25px;
}

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

.input-group label{
    display:block;
    margin-bottom:6px;
    font-weight:600;
}

.input-group input{
    width:100%;
    padding:12px;
    border:2px solid #ddd;
    border-radius:10px;
    outline:none;
    transition:.3s;
}

.input-group input:focus{
    border-color:#2563eb;
}

.login-btn{
    width:100%;
    border:none;
    padding:14px;
    background:#2563eb;
    color:white;
    font-size:16px;
    font-weight:700;
    border-radius:10px;
    cursor:pointer;
}

.login-btn:hover{
    background:#1d4ed8;
}

.error{
    color:red;
    text-align:center;
    margin-top:12px;
    display:none;
}