@charset "utf-8";

#main {
    padding-top: 0;
}

.content {
    display: block;
    margin-left: 250px;
}

.openbtn {
    margin-top: 20px;
    left: 10px;
    position: fixed;
    background-color: #0000;
    border: none;
    outline: none;
    height: 20px;
    width: 30px;
    cursor: pointer;
    transition: all 0.5s ease-out;
}

.openbtn img {
    width: 40px;
    height: auto;
}

.openbtn:hover {
    color: var(--shadowedblack);
}

.openbtn:focus {
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.2);
}

.headings {
    padding-top: 60px;
    padding-left: 5%;
    font-weight: 400;
    font-size: 48px;
}

.subheadings {
    text-align: right;
    margin: 50px 180px 120px;
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin-top: calc(var(--bs-gutter-y) * -1);
    margin-right: calc(var(--bs-gutter-x) * -.5);
    justify-content: space-evenly;
    flex-direction: row;
    align-items: flex-start;
}

.first-subpage-heading {
    padding-top: 60px;
    font-weight: 400;
    font-size: 40px;
    text-align: right;
    margin-left: 30%;
    margin-right: 20%;
    margin-top: 0;
}

.first-subheading {
    text-align: right;
    margin: 90px 100px 120px 50%;
    font-size: 24px;
}

.last-subheading {
    text-align: left;
    margin: 10px 100px 120px 20%;
    font-size: 24px;
}

.book-btn:hover {
    background-color: var(--shadowedblack);
    color: var(--truewhite);
}

.book-btn {
    margin: auto;
    margin-top: 200px;
    margin-bottom: 80px;
    position: relative;
    display: flex;
    flex-wrap: wrap;
    flex-direction: column;
    width: inherit;
    max-width: 400px;
    min-width: 200px;
    bottom: 30px;
    background-color: var(--truewhite);
    color: var(--shadowedblack);
    padding: 10px 20px;
    border-radius: 10px;
    align-items: center;
    text-align: center;
    align-content: center;
    text-decoration: none;
    transition: all 0.3s ease-in-out;
    font-size: 40px;
    font-family: "Nanum Myeongjo";
}

@media screen and (max-width: 960px) {
    .first-subheading {
        margin-bottom: 20px;
    }

    .book-btn {
        margin-top: 80px;
    }

    .headings {
        padding-top: 20px;
        margin-left: 60px;
    }

    .card-col {
        margin-top: 30px;
    }
}

@media screen and (max-width: 820px) {
    .first-subpage-heading {
        margin-left: 60px;
        margin-right: 20px;
    }

    .first-subheading {
        margin-left: 20%;
        margin-right: 20px;
        margin-bottom: 40px;
    }

    .book-btn {
        margin-top: 160px;
    }

    .content {
        margin-left: 100px;
    }

    .sidenav a {
        padding: 10px 10px 5px 20px;
    }

    .sidenav {
        width: 200px;
    }
}

@media screen and (max-width: 480px) {
    .first-subpage-heading {
        margin-left: 20px;
        padding-top: 20px;
    }

    .first-subheading {
        margin-top: 20px;
    }

    .book-btn {
        margin-top: 100px;
        padding: 10px 10px;
    }

    .subheadings {
        margin: 50px 90px 40px 90px;
    }

    .content {
        margin-left: 20px;
    }

    .sidenav a {
        padding: 10px 10px 5px 20px;
    }

    .sidenav {
        width: 180px;
    }
}