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

body{
    background:#f4f6f9;
    height:100vh;
    display:flex;
    justify-content:center;
    align-items:center;
}

.login-container{
    width:100%;
    max-width:420px;
    background:white;
    padding:40px;
    border-radius:12px;
    box-shadow:0 10px 30px rgba(0,0,0,0.1);
}

.logo{
    text-align:center;
    margin-bottom:30px;
}

.logo h1{
    color:#24385b;
    margin-top:10px;
    font-size:28px;
}

.logo p{
    color:#777;
    margin-top:5px;
}

.form-group{
    margin-bottom:20px;
}

.form-group label{
    display:block;
    margin-bottom:8px;
    color:#333;
    font-weight:bold;
}

.form-group input{
    width:100%;
    padding:14px;
    border:1px solid #ddd;
    border-radius:8px;
    font-size:15px;
}

.form-group input:focus{
    outline:none;
    border-color:#24385b;
}

.btn-login{
    width:100%;
    padding:14px;
    border:none;
    background:#24385b;
    color:white;
    font-size:16px;
    border-radius:8px;
    cursor:pointer;
    transition:0.3s;
}

.btn-login:hover{
    background:#1a2a45;
}

.error{
    background:#ffebee;
    color:#c62828;
    padding:12px;
    border-radius:8px;
    margin-bottom:20px;
    text-align:center;
}