:root {
    --text-color: #6A7BA2;
    --background-color: #FFD4D4;
    --accent-color: #A0C3D2;
}

/* header */
.header{
    position: sticky;
    top: 0;
    z-index: 10;
    font-family: 'IBM Plex Sans KR', sans-serif;
}

.header{
    margin: 0;
    padding: 0;
    color: var(--text-color);
    background-color: #ffffff;
    border-bottom: 4px solid var(--background-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: bold;
    padding: 6px 12px;
}

.header h1{
    font-size: medium;
    font-weight: bold;
}

.header-click{
    font-size: x-large;
}

a {
    text-decoration: none;
    color: var(--text-color);
    opacity: 0.5s;
}
.menu{
    display:flex;
    list-style: none;
    padding-left: 0;
    font-size: large;
}

.menu li{
    padding: 6px 12px;
}

.menu li:hover{
    background-color: var(--background-color);
    border-radius: 4px;
    opacity: 0.8;
}


.header_toogleBtn{
    display: none;
    position: absolute;
    margin-top: 12px;
    right: 32px;
    font-size: 24px;
    color: var(--text-color);

}

@media screen and (max-width: 768px){
    .header{
        flex-direction: column;
        align-items: flex-start;
        padding: 8px 24px;
    }

    .menu{
        display: none;
        flex-direction: column;
        align-items: center;
        width: 100%;
    }

    .menu li{
        width: 100%;
        text-align: center;
    }

    .menu_icons{
        display: none;
        justify-content: center;
        width: 100%;
        padding-left: 0;
    }

    .header_toogleBtn{
        display: block;
    }

    .menu.active,
    .menu_icons.active{
        display: flex;
    }
}