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

body{

    font-family:
    Pretendard,
    "Noto Sans KR",
    sans-serif;

    background:
    linear-gradient(
        180deg,
        #2563eb,
        #3b82f6);

    min-height:100vh;

}

.container{

    width:100%;

    min-height:100vh;

    display:flex;

    justify-content:center;

    align-items:center;

    padding:24px;

}

.login-card{

    width:100%;

    max-width:420px;

    background:white;

    border-radius:28px;

    padding:40px 28px;

    box-shadow:

    0 20px 60px

    rgba(0,0,0,.18);

}

.logo{

    font-size:72px;

    text-align:center;

    margin-bottom:24px;

}

h1{

    text-align:center;

    font-size:32px;

    color:#111827;

    margin-bottom:12px;

}

p{

    text-align:center;

    color:#6b7280;

    font-size:17px;

    margin-bottom:36px;

}

input{

    width:100%;

    height:60px;

    border:none;

    outline:none;

    border-radius:18px;

    background:#f3f4f6;

    padding:0 20px;

    font-size:18px;

    transition:.25s;

}

input:focus{

    background:white;

    box-shadow:

    0 0 0 4px

    rgba(37,99,235,.2);

}

button{

    width:100%;

    height:60px;

    margin-top:24px;

    border:none;

    border-radius:18px;

    background:#2563eb;

    color:white;

    font-size:20px;

    font-weight:700;

    cursor:pointer;

    transition:.2s;

}

button:active{

    transform:scale(.98);

}

button:hover{

    background:#1d4ed8;

}

#error{

    margin-top:20px;

    text-align:center;

    color:#dc2626;

    font-weight:600;

    min-height:24px;

}

@media(max-width:480px){

    .login-card{

        border-radius:22px;

        padding:32px 24px;

    }

    h1{

        font-size:28px;

    }

    p{

        font-size:16px;

    }

    input{

        height:58px;

        font-size:18px;

    }

    button{

        height:58px;

        font-size:19px;

    }

}