:root {
    --bs-font-sans-serif: "Pretendard", -apple-system, BlinkMacSystemFont, system-ui, Roboto, "Helvetica Neue", "Segoe UI", "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", sans-serif;
}

div {
    box-sizing: border-box;
}

#homeBtn>img {
    max-width: 100px;
    margin-left: 2em;
}

.navbar {
    background-color: #FF9F1F;
    background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAIAAACQd1PeAAAADElEQVR42mP4P18eAAReAb7+2v+IAAAAAElFTkSuQmCC");
    background-size: 100% 100%;
    color-scheme: only light;
}

.navbar-bg-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.navbar > .container-fluid {
    position: relative;
}

.navbar-logo-canvas {
    height: auto;
    vertical-align: middle;
}

.nav-link {
    font-weight: 600;
}

.logo-white {
    filter: brightness(0) invert(1);
}

#mainContent {
    padding: .5rem;
    margin-bottom: 3rem;
    margin-top: 1.5rem;
}

@media (max-width: 768px) {
    .flex-md-row {
        flex-direction: column;
    }
}

@media (min-width: 768px) {
    #header {
        max-width: 1050px;
        width: 80%;
        margin-left: auto;
        margin-right: auto;
        margin-top: 2em;
    }

    #homeBtn>img {
        width: 70%;
        max-width: 170px;
    }

    #upperHalf>button {
        visibility: hidden;
    }

    #restHalf {
        margin-top: .5em;
        border-bottom: 2px solid #000;
    }

    #mainContent {
        max-width: 1050px;
        width: 80%;
        margin-left: auto;
        margin-right: auto;
    }

    a {
        text-decoration: none;
        color: black;
    }

    .logoutBtn:hover {
        color: red;
    }

    a:hover {
        color: orange;
    }

    .logo {
        display: block;
        margin: 0 auto;
    }

    body {
        font-weight: 400;
    }
}
/* POST form 안에서 링크처럼 보이는 버튼 */
.btn-reset {
    background: none;
    border: 0;
    font: inherit;
    cursor: pointer;
}