:root {
    --blur: 5px;
    --c: 255;
    --background-color: rgb(28, 30, 33);
    --top-left-box-shadow: 6px 6px 12px rgb(184, 185, 190);
    --bot-right-box-shadow: -6px -6px 12px rgb(255, 255, 255) !important;
    --hover-color: rgb(96, 195, 96);
    --intro-text-color: rgb(211, 188, 188);
    --intro-bar-color: rgba(194, 199, 213, 0.8);
    --intro-bar-paragraph-color: rgba(194, 199, 213, 0.5);
    --intro-title-color: rgb(231, 223, 223);
    --font-family-base: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
    --font-family-mono: Menlo, Monaco, Consolas, "Courier New", monospace;
}

html,
body {
    background-color: var(--background-color);
    max-width: 1526.4px;
    min-width: 1526.4px;
    margin: 0 auto;
}

* {
    scroll-behavior: smooth !important;
    scroll-padding-top: 70px;
}

.search-box {
    background-color: var(--background-color);
    border: 1px solid #dedede;
    border-radius: 1rem;
    padding: 1rem 1rem 1rem 3rem;
    width: 100%;
    line-height: 2rem;
    height: 1rem;
    font-size: 1.5rem;
}

#search-svg {
    position: relative;
    left: 36px;
    width: 24px;
}

.search-result {
    font-size: 24px;
    color: var(--hyperlink-color);
    text-decoration: none;
}

.search-result:hover {
    text-decoration:underline;
}

.search-result-forum {
    color: var(--sub-text-color);
}

#search-title {
    display: flex;
    justify-content: 8 2;
    flex-direction: row;
}

.search-paragraph {
    color: var(--intro-text-color);
    font-family: var(--font-family-base);
    font-size: 2.25rem;
}

h1 {
    color: var(--intro-text-color);
    font-family: var(--font-family-mono);
    font-size: 2.25rem;
}

#back {
    position: relative;
    top: 24px;
    left: 1150px;
    font-size: 2.25rem;
    width: 30px;
    height: 30px;
    background-size: 30px 30px;
    color: var(--hyperlink-color);
}

#search-window {
    position: absolute;
    z-index: 99999px;
    background-color: var(--background-color);
    width: 100%;
    visibility: hidden;
}

#search-container {
    padding: 100px;
    display: flex;
    justify-content: center;
    flex-direction: column;
}

#input-container {
    margin: 50px;
    display: flex;
    justify-content: center;
}

p {
    font-family: var(--font-family-base);
}

#window {
    position: absolute;
    background-color: var(--background-color);
    width: 100%;
    height: 100%;
    max-width: 1526.4px;
    min-width: 1526.4px;
    margin: 0 auto;
}

#DongDong {
    width: 15%;
}

.search-div {
    position: relative;
    top: 10px;
}

#search {
    background-color: var(--background-color);
    border-radius: 30px;
    width: 500px;
    height: 30px;
}

#search-button {
    height: 30px;
    width: 30px;
}

::-webkit-scrollbar {
    width: 10px;
}

/* Track */
::-webkit-scrollbar-track {
    background: #f1f1f1;
}

/* Handle */
::-webkit-scrollbar-thumb {
    background: #888;
}

/* Handle on hover */
::-webkit-scrollbar-thumb:hover {
    background: #555;
}

#container {
    position: fixed;
    z-index: 9999;
    width: 100%;
    display: flex;
    background-color: var(--background-color);
    height: 70px;
    box-shadow: var(--top-left-box-shadow), var(--bot-right-box-shadow);
}

.post-container {
    position: relative;
    top: 100px;
    visibility: hidden;
}

.intro-container {
    position: fixed;
    z-index: 9999;
    width: 100%;
    display: flex;
    background-color: var(--background-color);
    height: 70px;
    box-shadow: var(--top-left-box-shadow), var(--bot-right-box-shadow);
}

#intro-bar {
    background-color: var(--background-color);
}

input {
    background-color: var(--intro-bar-color);
    padding: 10px;
    border-radius: 5px;
}

nav>ul {
    color: var(--intro-bar-color);
    background-color: var(--background-color);
    list-style: none;
}

.intro-text {
    color: inherit;
    /*reomve hyperlink-color*/
    text-decoration: none;
    /*reomve underline of anchor*/
    display: block;
    /*let each anchor full fill ul*/
    padding: 10px;
    font-family: var(--font-family-mono);
}

.list {
    position: absolute;
    visibility: hidden;
    background: var(--background-color);
}

.intro-text:hover .list {
    visibility: visible;
    transition: visibility 0s .2s;
}

.intro-text:hover {
    color: var(--hover-color);
}

.flex-nav {
    display: flex;
    justify-content: center;
}

.vt-social-link-icon {
    height: 20px;
    padding: 33px 8px 5px 8px;
    -webkit-filter: invert(1);
    /* Safari */
    filter: invert(50%);
    display: block;
}

.intro-div {
    background-color: var(--background-color);
    display: flex;
    justify-content: center;
}

.ease {
    transition: all 10s ease;
}

.switch {
    position: relative;
    display: inline-block;
    top: 27px;
    left: 5px;
    width: 60px;
    height: 28px;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #8a8a8a;
    -webkit-transition: 0.4s;
    transition: 0.4s;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider:before {
    position: absolute;
    content: "";
    height: 24px;
    width: 24px;
    left: 4px;
    bottom: 2px;
    background-color: #2c2c2c;
    -webkit-transition: 0.4s;
    transition: 0.4s;
}

#intro-div-sun {
    position: absolute;
    font-size: 30px;
    z-index: 500px;
    color: rgb(231, 223, 223);
    text-decoration: none;
    visibility: hidden;
}

/* #intro-div-moon::before {
    content: '☾';
} */

#intro-div-moon {
    position: absolute;
    font-size: 30px;
    z-index: 100px;
    color: rgb(0, 0, 0);
    text-decoration: none;
    visibility: visible;
}

#theme-swap {
    position: relative;
    top: 10px;
    right: 25px;
    margin-left: 50px;
    width: 42px;
    height: 21px;
    border-radius: 17px;
    border: 1px solid black;
    visibility: visible;
    background-color: #2c2c2c;
}

#theme-switcher {
    width: 20px;
    height: 20px;
    border-radius: 12px;
    background-color: #dbdbdb;
    line-height: 21px;
    text-align: center;
    transition: 0.2s;
    transform: translateX(0px);
}

#intro-div-button {
    cursor: pointer;
    position: relative;
    visibility: hidden;
    border-radius: 50%;
    top: 20px;
    width: 60px;
    height: 60px;
    border: 1px solid var(--intro-bar-color);
    background-color: var(--intro-text-color);
    transition: border-color .25s, background-color .25s;
}

.downwards-div {
    height: 0px;
    width: 0px;
    background-color: var(--background-color);
    display: flex;
    justify-content: center;
}

.showText {
    color: var(--intro-title-color);
    text-decoration: none;
}

.showText:hover {
    color: var(--hover-color);
}

.showText-list {
    list-style: none;
    background-color: var(--background-color);
    display: block;
    padding-left: 10px;
    padding-bottom: 10px;
    border: 1px solid white;
    -webkit-border-radius: 7px;
}

.showText-list:hover {
    box-shadow: var(--top-left-box-shadow), var(--bot-right-box-shadow);
}

.showText-nested-list {
    position: relative;
    list-style: none;
    background-color: var(--background-color);
    display: block;
    padding: 0px;
    margin: 0px;
}

.showText-paragraph {
    color: var(--intro-bar-paragraph-color);
    font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
}

.showText-container {
    position: relative;
    width: 100px;
    height: 10px;
    margin-top: -30px;
    transition-duration: 1s;
    z-index: 9999;
    top: 30px;
    background-color: transparent !important;
}

/* #about-me-container {
    display: flex;
    justify-content: center;
    align-items: column;
} */

.about-me-div {
    position: relative;
    top: 20px;
    display: flex;
    justify-content: center;
    flex-direction: row;
    width: 100%;
    height: 400px;
    box-shadow: var(--top-left-box-shadow), var(--bot-right-box-shadow);
    clip-path: inset(0px 0px -15px 0px);
}

#about-me-div--1 {
    position: relative;
    top: 50px;
}

#about-me-div--2 {
    flex-direction: row-reverse;
}

.about-me-head {
    display: flex;
    justify-content: center;
    flex-direction: column;
}

#about-me-head--1 {
    padding-left: 30px
}

#about-me-head--2 {
    padding-right: 30px
}

#about-me-head--3 {
    padding-left: 30px;
}

.about-me-head img {
    border-radius: 300pt;
    width: 300px;
    height: 300px;
    filter: blur(var(--blur));
}

.about-me-head img:hover {
    transition: 1s;
    box-shadow: var(--top-left-box-shadow), var(--bot-right-box-shadow);
    filter: blur(calc(var(--blur) - 5));
}

.about-me-intro {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.about-me-intro p {
    width: 90%;
    letter-spacing: .5px;
    line-height: 24px;
    font-size: 16px;
    font-weight: 400;
    direction: ltr;
    font-synthesis: none;
    text-rendering: optimizeLegibility;
    transition: color .5s, background-color .5s;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    color: var(--intro-text-color);
}

#intro-section {
    position: relative;
    top: 50px;
    background-color: var(--background-color);
    width: 100%;
    height: 200px;
    display: flex;
    justify-content: space-evenly;
}

.intro-section-div {
    display: flex;
    justify-content: 5, 5;
    align-items: center;
    flex-direction: column;

    border-radius: 5px;
    border: 1px solid white;
    -webkit-border-radius: 7px;
    width: 300px;
    height: 230px;
}

.intro-section-div:hover {
    transition: .3s;
    box-shadow: var(--top-left-box-shadow), var(--bot-right-box-shadow);
}

.intro-section-div-h2 {
    font-weight: 600;
    font-size: 20px;
    letter-spacing: -.4px;
    /* color: var(--vt-c-text-1); */
    color: var(--intro-title-color);
    transition: color .5s;
    margin-bottom: 0.75em;
}

.intro-section-div-paragraph {
    width: 90%;
    letter-spacing: .5px;
    line-height: 24px;
    font-size: 16px;
    font-weight: 400;
    direction: ltr;
    font-synthesis: none;
    text-rendering: optimizeLegibility;
    transition: color .5s, background-color .5s;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    color: var(--intro-text-color);
}

.intro-head {
    position: relative;
    top: 50px;
    display: flex;
    justify-content: center;
    font-size: 48px;
}

.intro-head-paragraph {
    color: var(--intro-title-color);
}

#intro-relate-container {
    position: relative;
    display: flex;
    justify-content: center;
    top: 70px;
    height: 300px
}

.intro-relate-div {
    position: relative;
    display: flex;
    justify-content: center;
    flex-direction: column-reverse;
    transition: cubic-bezier(1, 0, 0, 1);
    top: 50px;
    padding: 10px;
    height: 100px;
    width: 20%;
}

.intro-relate-title-content {
    display: flex;
    justify-content: center;
    font-size: 20px;
    color: inherit;
    text-decoration: none;
    padding: 10px;
    color: var(--intro-title-color);
}

.intro-relate-image-div {
    background-color: var(--background-color);
    width: 300px;
    height: 229px;
}

.intro-relate-image-div img {
    border-radius: 10px;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.intro-relate-image-div:hover {
    transition: .3s;
    border-radius: 10px;
    box-shadow: var(--top-left-box-shadow), var(--bot-right-box-shadow);
}

.github-table {
    position: relative;
    width: 70%;
    height: 300px;
}

.github-table-line {
    font-size: 20px;
    font-family: var(--font-family-base);
    color: var(--intro-text-color);
}

.github-table-text {
    width: 20%;
    height: 60px;
}

.github-table-line:hover {
    transition: .2s;
    box-shadow: var(--top-left-box-shadow), var(--bot-right-box-shadow);
}