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

body{
    background:#f4f6fb;
    height:100vh;
    display:flex;
    justify-content:center;
    align-items:center;
}

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

.card{
    background:white;
    padding:40px;
    width:380px;
    border-radius:14px;
    box-shadow:0 8px 25px rgba(0,0,0,0.08);
    text-align:center;
}

.logo{
    width:90px;
    margin-bottom:15px;
}

h2{
    margin-bottom:8px;
    color:#222;
}

.subtitle{
    font-size:14px;
    color:#666;
    margin-bottom:25px;
}

label{
    display:block;
    text-align:left;
    margin-bottom:6px;
    font-size:14px;
    font-weight:600;
}

input{
    width:100%;
    padding:12px;
    border-radius:8px;
    border:1px solid #ddd;
    margin-bottom:18px;
    outline:none;
    transition:0.2s;
}

input:focus{
    border-color:#d32f2f;
}

.btn{
    width:100%;
    padding:12px;
    background:#d32f2f;
    color:white;
    border:none;
    border-radius:8px;
    cursor:pointer;
    font-weight:bold;
    transition:0.2s;
}

.btn:hover{
    background:#b71c1c;
}

.back{
    display:block;
    margin-top:18px;
    text-decoration:none;
    color:#555;
    font-size:14px;
}

.back:hover{
    color:#d32f2f;
}