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

body {
  background-color: #222;
  color: #fff;
  font-family: 'NexonLv1Gothic';
  font-weight: 300;
}

img {
  width: 100%;
  vertical-align: top;
}

a {
  color: #fff;
  text-decoration: none;
}

li {
  list-style: none;
}

/* layout */
#header {
  z-index: 2000;
}

#main {
  width: 100%;
  height: 100vh;
  position: relative;
  z-index: 1000;
}

#footer {
  position: relative;
  z-index: 3000;
}

/* header */
#header {
  position: absolute;
  left: 0;
  top: 0;
  color: #fff;
  padding: 20px;
}

#header h1 {
  display: inline-block;
  font-weight: 300;
  margin-bottom: 10px;
  border-bottom: 1px dashed #fff;
}

#header p {
  margin-bottom: 10px;
}

#header li {
  display: inline-block;
}

#header li a {
  border: 1px solid #fff;
  border-radius: 50%;
  display: inline-block;
  width: 30px;
  height: 30px;
  text-align: center;
  line-height: 30px;
  font-size: 16px;
}

#header li.active a {
  background-color: #fff;
  color: #33377d;
}

/* footer */
#footer .source {
  position: absolute;
  right: 20px;
  bottom: 20px;
  border: 1px solid #fff;
  border-radius: 40px;
  padding: 10px 20px 5px;
  font-size: 14px;
}

/* modal__wrap */
.modal__wrap {
}

.modal__btn {
    position: fixed;
    right: 20px;
    bottom: 20px;
}

.modal__btn .btn__txt {
    margin-left: 20px;
    padding: 10px 20px;
    display: inline-block;
    color: #fff;
    background-color: #222;
    border: 1px solid #111;
    border-radius: 5px;
    box-shadow: 3px 3px #999;
    cursor: pointer;
    transition: all 0.3s ease-out;
}

.modal__btn .btn__txt:hover {
    background-color: #dcdcdca9;
    color: #333;
    box-shadow: 3px 3px #444;
}

.modal__close {
    cursor: pointer;
    background-color: #333;
    padding: 10px 10px 7px 10px;
    border-radius: 5px;
    position: absolute;
    right: 20px;
    top: 20px;
    visibility: hidden;
}

.modal__close:hover {
    background-color: #222;
    color: #fff;
    box-shadow: 2px 2px 20px #111;
}

.modal__close.show {
    visibility: visible;
}

.modal__cont {
    /* z-index: 6; */
    z-index: 20;
    display: flex;
    font-size: 15px;
    width: 100%;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.4);
    position: fixed;
    left: 0;
    top: 0;
    overflow-x: hidden;
    align-items: center;
    justify-content: center;
    transform: scale(0);
    /* visibility: hidden; */
}

.modal__box {
    width: 70%;
    margin: 0 auto;
    background-color: #fff;
    border-radius: 0.5rem;
    background-color: #fff;
    box-shadow: 0 10px 20px -5px hsl(180deg 2% 10%);
    transform: scale(0);
}

.modal__box .title {
    padding-inline: 1.5rem;
    background-color: hsl(0 0% 13%);
    display: flex;
    align-items: center;
    color: #fff;
    height: 60px;
    border-top-left-radius: 0.4rem;
    border-top-right-radius: 0.4rem;
}

.modal__box .title .dot {
    width: 15px;
    height: 15px;
    background-color: hsl(41 99% 59%);
    display: inline-block;
    border-radius: 50%;
    position: relative;
    margin-left: 30px;
}

.modal__box .title .dot::before {
    content: "";
    position: absolute;
    left: 25px;
    top: 0;
    width: 15px;
    height: 15px;
    background-color: hsl(129 67% 47%);
    border-radius: 50%;
}

.modal__box .title .puls {
    cursor: pointer;
    margin-left: 15px;
    background-color: hsl(0 0% 24%);
    padding: 0.5rem 0.5rem 0.3rem 0.5rem;
    border-radius: 0.5rem;
}

.modal__box .title .dot::after {
    content: "";
    position: absolute;
    right: 25px;
    top: 0;
    width: 15px;
    height: 15px;
    background-color: hsl(3 100% 67%);
    border-radius: 50%;
}

.modal__box .title .tabs {
    display: flex;
    justify-content: flex-start;
    margin-left: 40px;
}

.modal__box .title .tabs > div.active {
    background-color: rgb(80, 80, 80);
}

.modal__box .title .tabs > div {
    color: #ccc;
    background-color: hsl(0 0% 20%);
    padding: 0.35rem 0.8rem;
    margin: 0.5rem;
    display: flex;
    align-items: center;
    border-radius: 0.3rem;
    cursor: pointer;
}

.modal__box .title .tabs > div em {
    font-style: normal;
}

.modal__box .title .tabs > div .favicon {
    margin-right: 0.4rem;
    margin-top: 0.25rem;
}

.modal__box .title .tabs > div .close {
    margin-left: 3rem;
}

.modal__box .title .tabs > div .close svg {
}

.modal__box .cont {
    background-color: #2c2c2c;
    height: 550px;
    box-sizing: border-box;
    border-bottom-left-radius: 0.5rem;
    border-bottom-right-radius: 0.5rem;
    overflow-y: auto;
}

.modal__box .cont > div {
    display: none;
}

.modal__box .cont > div.active {
    display: block;
    height: 100%;
}

input[type="checkbox"] {
    display: none;
}

/* 모달 애니메이션 */
.modal__cont.show {
    /* visibility: visible; */
    animation: forldOut forwards 0.7s ease;
}

.modal__cont.show .modal__box {
    transform: scale(0);
    animation: zoomOut 0.4s 0.5s ease forwards;
}

.modal__cont.show .modal__close {
    animation: ClosOut 0.3s 1s ease forwards;
    opacity: 0;
}

@keyframes forldOut {
    0% {
        transform: scaleX(0) scaleY(0.005);
    }
    50% {
        transform: scaleX(1) scaleY(0.005);
    }
    100% {
        transform: scale(1) scaleY(1);
    }
}

@keyframes zoomOut {
    0% {
        transform: scale(0);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes ClosOut {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}

.modal__cont.show.hide {
    /* visibility: visible; */
    animation: forldIn backwards 0.3s 0.6s ease;
}

.modal__cont.show.hide .modal__box {
    transform: scale(0);
    animation: zoomIn 0.3s 0.3s ease backwards;
}

.modal__cont.show.hide .modal__close {
    transform: scale(0);
    animation: ClosIn 0.3s ease backwards;
}

@keyframes forldIn {
    0% {
        transform: scaleX(1) scaleY(1);
    }
    50% {
        transform: scaleX(1) scaleY(0.005);
    }
    100% {
        transform: scale(0) scaleY(0.005);
    }
}

@keyframes zoomIn {
    0% {
        transform: scaleX(1);
    }
    100% {
        transform: scale(0);
    }
}
@keyframes ClosIn {
    0% {
        opacity: 1;
    }
    100% {
        opacity: 0;
    }
}

@media (max-width: 1100px) {
    .modal__box {
        width: 96%;
    }
    .modal__box .title .dot {
        overflow: hidden;
        display: none;
    }
    .modal__box .title .tabs {
        margin-left: 0;
    }
    .modal__box .title .tabs > div .close {
        display: none;
    }
}

@media (max-width: 600px) {
    .header {
        width: 100%;
    }
    .modal__box {
        width: 96%;
    }
    .modal__box .title .dot {
        display: none;
    }
    .modal__box .title .tabs {
        margin-left: 0;
    }
    .modal__box .title .tabs > div .close {
        display: none;
    }
}

@media (max-width: 480px) {
    .header {
        width: 100%;
    }
    .modal__box {
        width: 96%;
    }
    .modal__box .title {
        padding: 5px;
    }
    .modal__box .title .dot {
        display: none;
    }
    .modal__box .title .tabs {
        margin-left: 0;
    }
    .modal__box .title .tabs > div .close {
        display: none;
    }

    .modal__box .title .tabs > div {
        font-size: 12px;
    }

    .modal__box .title .puls {
        display: none;
    }

    pre code.hljs {
        margin-bottom: 0 !important;
    }
}

@media (max-width: 800px) {
    .intro_menu {
        width: 90%;
        padding: 14px;
    }

    .intro_menu li {
        font-size: 16px;
    }
    .intro_menu ul li a {
        font-size: 16px;
    }
}