*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

body{
    font-family:Segoe UI, sans-serif;
    height:100vh;
    background:
        linear-gradient(
            135deg,
            #0f172a,
            #1e3a8a,
            #2563eb
        );

    display:flex;
    justify-content:center;
    align-items:center;
    overflow:hidden;
}

.login-container{
    width:420px;
    background:rgba(255,255,255,0.12);
    backdrop-filter:blur(18px);
    border:1px solid rgba(255,255,255,0.18);
    border-radius:28px;
    padding:40px;
    box-shadow:0 20px 60px rgba(0,0,0,0.35);
    color:white;
}

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

.logo h1{
    font-size:34px;
    margin-bottom:8px;
    letter-spacing:1px;
}

.logo p{
    color:#dbeafe;
    font-size:14px;
}

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

.form-group label{
    display:block;
    margin-bottom:8px;
    font-size:14px;
    color:#dbeafe;
}

.form-group input{
    width:100%;
    padding:14px 16px;
    border:none;
    border-radius:14px;
    outline:none;
    font-size:15px;
    background:rgba(255,255,255,0.15);
    color:white;
}

.form-group input::placeholder{
    color:#cbd5e1;
}

.login-btn{
    width:100%;
    padding:14px;
    border:none;
    border-radius:14px;
    background:white;
    color:#1e3a8a;
    font-size:16px;
    font-weight:700;
    cursor:pointer;
    transition:0.2s;
}

.login-btn:hover{
    transform:translateY(-2px);
    background:#dbeafe;
}

.footer-text{
    margin-top:24px;
    text-align:center;
    font-size:13px;
    color:#dbeafe;
}

.flash-message{
    padding:12px 16px;
    border-radius:12px;
    margin-bottom:18px;
    font-size:14px;
    font-weight:600;
}

.flash-danger{
    background:#fee2e2;
    color:#991b1b;
}

.flash-success{
    background:#dcfce7;
    color:#166534;
}