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

body{

    font-family:Arial, Helvetica, sans-serif;

    background:linear-gradient(
        135deg,
        #0f172a 0%,
        #111827 45%,
        #1e293b 100%
    );

    min-height:100vh;

    display:flex;

    justify-content:center;

    align-items:center;

    color:#ffffff;

}

.login-container{

    width:100%;

    display:flex;

    justify-content:center;

    align-items:center;

    padding:40px;

}

.login-card{

    width:430px;

    background:#1e293b;

    border:1px solid rgba(255,255,255,.08);

    border-radius:20px;

    padding:45px;

    box-shadow:
        0 25px 80px rgba(0,0,0,.45);

    animation:fadeIn .5s ease;

}

@keyframes fadeIn{

    from{

        opacity:0;

        transform:translateY(20px);

    }

    to{

        opacity:1;

        transform:translateY(0);

    }

}

.logo{

    display:block;

    width:320px;

    margin:auto;

    margin-bottom:30px;

    transition:.25s;

}

.logo:hover{

    transform:scale(1.03);

}

.subtitle{

    text-align:center;

    color:#94a3b8;

    font-size:15px;

    line-height:1.6;

    margin-bottom:35px;

}

form{

    display:flex;

    flex-direction:column;

    gap:18px;

}

input{

    width:100%;

    height:50px;

    border:none;

    border-radius:10px;

    background:#0f172a;

    color:white;

    padding:0 16px;

    font-size:15px;

    outline:none;

    transition:.25s;

}

input::placeholder{

    color:#64748b;

}

input:focus{

    border:1px solid #2563eb;

    box-shadow:0 0 0 3px rgba(37,99,235,.25);

}

.password-container{

    position:relative;

}

.password-container input{

    padding-right:50px;

}

.toggle-password{

    position:absolute;

    right:12px;

    top:50%;

    transform:translateY(-50%);

    width:34px;

    height:34px;

    border:none;

    background:none;

    color:#94a3b8;

    cursor:pointer;

    font-size:18px;

    transition:.2s;

}

.toggle-password:hover{

    color:white;

}

.error-message{

    min-height:18px;

    text-align:center;

    font-size:14px;

    color:#ef4444;

}

button{

    height:50px;

    border:none;

    border-radius:10px;

    cursor:pointer;

    font-size:15px;

    font-weight:bold;

    transition:.25s;

}

button[type="submit"]{

    background:#2563eb;

    color:white;

}

button[type="submit"]:hover{

    background:#1d4ed8;

    transform:translateY(-1px);

}

button[type="submit"]:active{

    transform:translateY(0);

}

.separator{

    height:1px;

    background:#334155;

    margin:30px 0;

}

.register-text{

    text-align:center;

    color:#94a3b8;

    margin-bottom:15px;

}

.secondary-button{

    width:100%;

    background:transparent;

    color:#60a5fa;

    border:1px solid #334155;

}

.secondary-button:hover{

    background:#334155;

}

.secondary-button:active{

    transform:translateY(1px);

}

@media(max-width:520px){

    .login-container{

        padding:20px;

    }

    .login-card{

        width:100%;

        padding:35px 25px;

    }

    .logo{

        width:180px;

    }

}

.hidden{

    display:none;

}