body {
    font-family: "GmarketSans Light", sans-serif;
    font-weight: normal;
    font-size: 14px;
    padding: 0;
    margin: 0;
    overflow-y: auto;
    display: flex;
    min-height: 100vh;
    flex-direction: column;
    background:
        radial-gradient(ellipse at 20% 20%, #11091b 0%, transparent 70%),
        radial-gradient(ellipse at 60% 20%, #0c1a27 0%, transparent 70%),
        radial-gradient(ellipse at 100% 20%, #10102b 0%, transparent 70%),
        radial-gradient(ellipse at 100% 100%, #220d12 0%, transparent 70%),
        radial-gradient(ellipse at 20% 100%, #100c29 0%, transparent 70%);
    background-blend-mode: screen;
    min-height: 100vh;
}
/*________________ glass ________________*/
.glass {
    background-color: rgba(29, 29, 21, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: #FFFFFF;
}
.glass_white {
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: #000000;
}

/*________________ nav 스타일 추가 ________________*/
.nav-slogo {
    line-height: 64px;
    font-size: 1.5rem;
    padding-left: 2rem;
}
.nav-tlogo {
    font-size: 1.5rem;
    padding-left: 2rem;
}
.nav-right-menu {
    float: right;
    padding-right: 300px;
}
/*________________ 기본 스타일 변경 ________________*/
.card-panel {

    border-radius: 1rem;
}
.section {
    padding-left: 2rem;
    padding-right: 2rem;
    position: relative;
}
.collapsible {
    border-left: 0;
    border-right: 0;
}
/*________________ collection ________________*/
.collection {
    border: none;
}
.collection a.collection-item {
    color: #ffffff;
    line-height: 1.5rem;
    background-color: rgba(29, 29, 21, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: none;
    margin: 4px;
}
.collection a:hover {
    background-color: rgba(77, 77, 68, 0.9) !important;
}
/*________________ Layout ________________*/
main {
    flex: 1 0 auto;
}
.sidenav li>a:hover,
.sidenav li>a.active {
    background-color: rgba(255, 255, 255, 0.2) !important;
    border-radius: 30px;
}
.sidenav li {
    padding: 0.1rem 2rem;
}
header,
main,
footer {
    margin-left: 300px;
}
@media only screen and (max-width : 992px) {

    header,
    main,
    footer {
        margin-left: 0;
    }

    .sidenav {
        z-index: 9999;
    }
}
/*________________ w btn, r btn, img ________________*/
.wbtn {
    width: 100%;
}
.rbtn {
    border-radius: 18px;
    margin: 6px;
    text-transform:none;
}
.img64 {
    width: auto;
    height: 64px;
    border-radius: 5px;
    margin-right: 20px;
}
/*________________ code-window ________________*/
.code-window {
    width: 100%;

    color: #fff;
    border-radius: 12px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
    border: 2px solid #333;
    overflow: hidden;
    margin: 10px;
}
.code-title-bar {
    background-color: #222;
    padding: 6px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    user-select: none;
    font-size: 12px;
}
.code-title {
    flex: 1;
    margin-left: 10px;
}
.code-copy {
    margin-right: 10px;
    color: #ccc;
}
.code-copy:hover,
.code-copy:checked {
    color: #fff;
}
code {
    font-family: "UbuntuMono", "GmarketSans Light", monospace;
    font-weight: 400;
    font-style: normal;
    font-size: 1.2rem;
}
pre {
    margin: 0;
    background-color: rgba(29, 29, 21, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 20px;
    overflow-x: auto;
}
pre::-webkit-scrollbar {
    width: 10px;
    height: 20px;
}
pre::-webkit-scrollbar-thumb {
    background-color: #2f2f3a;
    border-radius: 10px;
    background-clip: padding-box;
    border: 2px solid transparent;
}
pre::-webkit-scrollbar-track {
    background-color: #797a88;
    border-radius: 10px;
    box-shadow: inset 0px 0px 5px white;
}




blockquote{
    white-space: pre;
}










.calendar {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
}
.calendar-header, .calendar-day {
    padding: 10px;
    border: 1px solid #555;
}
.calendar-day a{
    color: #eee;
}
.calendar-header {
    font-weight: bold;
    text-align: center;
}
.calendar-day.highlight {
    background-color: #1eff0017;
}




.small-text {
    font-size: 16px;
}





















.id_row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
}

.id_row>.id_col {
    width: 150px;
    height: 150px;
    padding: 11px;
    text-align: center;
}

.id_card {
    box-shadow: 0 4px 8px 2px rgba(0, 0, 0, 0.7);
    padding: 10px;
    background-image: linear-gradient(to right bottom, #ffffff, #f1f0f7, #e2e2ef, #d2d4e7, #c2c7e0);
    color: #333;
    border-radius: 10px;
    width: 100%;
    height: 100%;
    display: block;
}
.id_card p {
    margin: 6px 0;
    line-height: 120%;
}
.id_card p:hover {
    color: #ff0000;
    text-shadow: 1px 1px 0px #fff , 0 0 0 #000;
}
.id_img {
    height: 64px;
    width: 64px;
    border-radius: 8px;
}