web/assets/css/main.scss

---
---
/*!
* The main styles.
* v2.0
* https://github.com/cotes2020/jekyll-theme-chirpy
* © 2018-2019 Cotes Chung
* MIT Licensed
*/

@import "_fonts";
@import "_dark/dark-main";

@mixin sidebar-icon {
  color: rgba(255, 255, 255, 0.5);
  transition: color 0.35s ease-in-out;
  user-select: none;
  margin: 0 .25rem;
}

@mixin icon-round($diameter) {
  border: 1px solid;
  border-radius: 50%;
  width: $diameter;
  height: $diameter;
}

html, body {
  height: 100%;
  font-size: 16px;
}

/* Solved jumping scrollbar */
html {
  overflow-y: scroll;
}

body {
  line-height: 1.75rem;
  background: var(--main-wrapper-bg, #fafafa);
  color: var(--text-color, #212529);
  -webkit-font-smoothing: antialiased;
  font-family: 'Source Sans Pro', 'Microsoft Yahei', sans-serif;
}

/*--- sidebar layout ---*/

#sidebar {
  padding-left: 0;
  padding-right: 0;
  position: fixed;
  top: 0;
  left: 0;
  height: 100%;
  overflow-y: auto;
  width: 260px;
  z-index: 99;
  -webkit-transition: transform 0.4s ease;
  transition: transform 0.4s ease;
  background: rgb(42, 30, 107);
  background: var(--sidebar-bg,
    radial-gradient(circle, rgba(42, 30, 107, 1) 0%, rgba(35, 37, 46, 1) 100%));
}

#sidebar a {
  @include sidebar-icon;
}

#sidebar .sidebar-bottom .icon-border+a { // the icon behide mode-toggle
  margin-left: .1rem;
}

#sidebar .nav-item {
  height: 20%;
}

#sidebar .nav-link {
  border-radius: 0;
  font-size: .95rem;
  font-weight: 600;
  letter-spacing: 1px;
}

#sidebar .nav-item:hover .nav-link {
  color: #f8f9facf;
}

#sidebar .nav-item.active .nav-link {
  color: #fcfcfc;
}

#sidebar ul {
  height: 16.5rem;
  display: -webkit-box;
  display: -ms-flexbox;
}

#sidebar ul > li.active:nth-child(1) ~ li:last-child::after,
#sidebar ul > li.nav-item:nth-child(1):hover ~ li:last-child::after {
  // top: calc(-400% + (26px / 2));
  top: -195px;
  visibility: visible;
}

#sidebar ul > li.active:nth-child(2) ~ li:last-child::after,
#sidebar ul > li.nav-item:nth-child(2):hover ~ li:last-child::after {
  // top: calc(-300% + (26px / 2));
  top: -143px;
  visibility: visible;
}

#sidebar ul > li.active:nth-child(3) ~ li:last-child::after,
#sidebar ul > li.nav-item:nth-child(3):hover ~ li:last-child::after {
  // top: calc(-200% + (26px / 2));
  top:  -91px;
  visibility: visible;
}

#sidebar ul > li.active:nth-child(4) ~ li:last-child::after,
#sidebar ul > li.nav-item:nth-child(4):hover ~ li:last-child::after {
  // top: calc(-100% + (26px / 2));
  top: -39px;
  visibility: visible;
}

#sidebar ul > li.active:nth-child(5):last-child::after,
#sidebar ul > li.nav-item:nth-child(5):last-child:hover::after {
  // top: calc(26px / 2);
  top: 13px;
  visibility: visible;
}

#sidebar ul > li:last-child > a {
  margin-right: -3px;
  max-width: calc(100% - 3px);
}

#sidebar ul > li:last-child::after {
  visibility: hidden;
  content: "";
  position: relative;
  width: 3px;
  height: 26px;
  background-color: var(--nav-cursor, #fcfcfc);
  pointer-events: none;
}

@media (hover: hover) {
  #sidebar ul>li:last-child::after {
    -webkit-transition: top .5s ease;
    -moz-transition: top .5s ease;
    -o-transition: top .5s ease;
    transition: top .5s ease;
  }
}

#nav-wrapper {
  width: 100%;
  flex-grow: 1;
}

#profile-wrapper {
  margin-top: 2rem;
}

#avatar>a {
  display: block;
  width: 6rem;
  height: 6rem;
  border-radius: 50%;
  border: 2px solid #b6b6b6;
  overflow: hidden;
  transform: translateZ(0); /* fixed the zoom in Safari */
  -webkit-transition: border-color 0.35s ease-in-out;
  -moz-transition: border-color 0.35s ease-in-out;
  transition: border-color 0.35s ease-in-out;
}

#avatar:hover>a {
  border-color: #fff;
}

#avatar img {
  width: 100%;
  height: 100%;
  background-size: cover;
  background-repeat: no-repeat;
  -webkit-transition: all .5s !important;
  -moz-transition: all .5s !important;
  transition: all .5s !important;
}

#avatar img:hover {
  -ms-transform: scale(1.2);
  -moz-transform: scale(1.2);
  -webkit-transform: scale(1.2);
  transform: scale(1.2);
}

#site-title {
  text-align: center;
}

#site-title a {
  color: #b6b6b6;
  font-weight: 900;
  font-size: 1.5rem;
  letter-spacing: .5px;
}

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

#site-subtitle {
  font-size: 95%;
  text-align: center;
  color: #828282;
  line-height: 1.2rem;
  word-spacing: 1px;
  margin: .5rem 1.5rem 2rem 1.5rem;
}

.sidebar-expand {
  box-shadow: 4px 0 8px 0 rgba(0, 0, 0, 0.2), 6px 0 20px 0 rgba(0, 0, 0, 0.19) !important;
}

#search-result-wrapper {
  display: none;
  position: fixed;
  top: 0;
  padding-top: 3rem;
  height: 100%;
  overflow: auto;
}

#search-result-wrapper .post-content {
  margin-top: 2rem;
}


#sidebar .sidebar-bottom {
  font-size: 1.2rem;
  margin: 2rem 2.5rem 1.6rem;

  a {
    margin-bottom: .5rem; // icons may have multi lines
  }

  a:hover, #mode-toggle-wrapper>i:hover {
    color: #fff;
  }

  #mode-toggle-wrapper {
    i {
      @include sidebar-icon;
      margin-right: 0;
      font-size: 1.05rem;
      text-align: center;
      position: relative;
      bottom: 1px;
    }
  }

  .icon-border {
    background: #525354;
    width: 1px;
    height: 8px;
    margin-top: .6rem;
    margin-left: .25rem;
    margin-right: .25rem;
  }
}


/*--- top-bar ---*/

#topbar-wrapper {
  height: 3rem;
  position: fixed;
  top: 0;
  left: 260px; /* same as sidebar width */
  right: 0;
  transition: top 0.2s ease-in-out;
  z-index: 50;
  border-bottom: 1px solid rgba(0, 0, 0, 0.07);
  box-shadow: 0 3px 5px 0 rgba(0, 0, 0, 0.05);
  background-color: var(--topbar-wrapper-bg, white);
}

#topbar i { // icons
  color: #999;
}

#breadcrumb {
  font-size: 1rem;
  color: gray;
  padding-left: .5rem;
}

#breadcrumb span:not(:last-child)::after {
  content: "›";
  padding: 0 .3rem;
}

#sidebar-trigger,
#search-trigger {
  display: none;
}

#search-wrapper {
  display: flex;
  width: 95%;
  border-radius: 1rem;
  border: 1px solid var(--search-wrapper-bg, #fff);
  background: var(--search-wrapper-bg, #f5f5f5);
  padding: 0 .5rem;
  transition: background-color .15s ease-in-out,border-color .15s ease-in-out;
}

#search-wrapper i {
  z-index: 2;
  font-size: .9rem;
  color: var(--search-icon, #c2c6cc);
}

#search-wrapper .fa-times-circle { /* button 'clean up' */
  visibility: hidden;
}

#search-wrapper+a { /* 'Cancel' link */
  color: var(--link-color, #2a408e);
  margin-left: 1rem;
  display: none;
}

#search-input {
  background: center;
  border: 0;
  border-radius: 0;
  padding: .18rem .3rem;
  color: var(--text-color);
}

#search-input:focus {
  box-shadow: none;
  background: center;
}

#search-input:focus.form-control::-webkit-input-placeholder { opacity: 0.6; }
#search-input:focus.form-control::-moz-placeholder { opacity: 0.6; }
#search-input:focus.form-control:-ms-input-placeholder { opacity: 0.6; }
#search-input:focus.form-control::placeholder { opacity: 0.6; }

#search-hints {
  display: none;
}

#search-hints .post-tag {
  display: inline-block;
  line-height: 1rem;
  font-size: 1rem;
  background: var(--tag-bg, #f8f9fa);
  border: none;
  padding: .5rem;
  margin: 0 1rem 1rem 0;
}

#search-hints .post-tag::before {
  content: "#";
  padding-right: .2rem;
}

#search-results {
  padding-bottom: 6rem;
}

#search-results a {
  font-size: 1.4rem;
  font-weight: 400;
  line-height: 2.5rem;
}

#search-results>div:not(:last-child) {
  margin-bottom: 1rem;
}

#search-results>div i { /* icons */
  color: #818182;
  margin-right: .15rem;
  font-size: 80%;
}

#search-results>div i:not(:first-child) {
  margin-left: 1rem;
}

#search-results>div>p{
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

#topbar-title {
  display: none;
  font-size: 1.1rem;
  font-weight: 600;
  font-family: sans-serif;
  color: var(--text-color, rgb(78, 78, 78));
  text-align: center;
  width: 70%;
  overflow: hidden;
  text-overflow: ellipsis;
  word-break: keep-all;
  white-space: nowrap;
}

#mask {
  display: none;
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  height: 100%;
  width: 100%;
  background: var(--mask-bg, #c1c3c5);
  opacity: 0.5;
  z-index: 1;
}

.sidebar-expand~#mask {
  display: block!important;
}

/*--- main wrapper ---*/

$footer-height: 5rem;

#main-wrapper {
  background-color: var(--main-wrapper-bg, white);
  position: relative;
  min-height: 100%;
  padding-bottom: $footer-height;
  padding-left: 0;
  padding-right: 0;
  margin-left: 260px;
  transition: transform 0.4s ease;
  -webkit-transition: transform 0.4s ease;
}

#main>div.row:first-child>div:nth-child(1),
#main>div.row:first-child>div:nth-child(2) {
  margin-top: 3rem; /* same as the height of topbar */
}

#main>div.row:first-child>div:first-child {
  /* 3rem for topbar, 6rem for footer */
  min-height: calc(100vh - 3rem - 6rem);
}

#post-wrapper {
  /* 350px for post extended block  */
  min-height: calc(100vh - 3rem - 6rem - 470px) !important;
}

#topbar-wrapper.row,
#main>.row,
#search-result-wrapper>.row {
  margin-left: 0;
  margin-right: 0;
}

footer {
  position: absolute;
  bottom: 0;
  padding: 0 1rem;
  height: $footer-height; /* see the height of #main-wrapper */
  font-size: 0.8rem;
  color: #7a7b7d;
  background-color: var(--main-wrapper-bg, #ffffff);
}


footer>div.d-flex {
  line-height: 1.2rem;
  width: 95%;
  max-width: 1035px;
  border-top: 1px solid var(--footer-border, #f3f3f3);
  margin-bottom: 1rem;
}

footer a:link,
footer a:hover {
  text-decoration: none;
}

footer>.d-flex>div {
  width: 350px;
}

footer .footer-left a,
footer .footer-right a {
  font-weight: 600;
  color: var(---footer-link, inherit);
}

footer .footer-right {
  text-align: right;
}

/*--- Panels ---*/

.access {
  top: 2rem;
  transition: top 0.2s ease-in-out;
  margin-right: 1.5rem;
  margin-top: 3rem;
  margin-bottom: 6rem;
  color: #6c757d;
}

.access:only-child {
  position: -webkit-sticky; /* Safari */
  position: sticky;
}

.access.topbar-down {
  top: 6rem;
}

.access>div {
  padding-left: 1rem;
  border-left: 1px solid rgba(158, 158, 158, 0.17);
}

.access>div:not(:first-child) {
  margin-top: 4rem;
}

.access h3 {
  padding-top: .5rem;
  padding-bottom: .5rem;
  margin-top: 0;
  margin-bottom: 0;
  letter-spacing: -0.02em;
  font-size: 1rem;
  font-family: 'Oswald', sans-serif;
}

.access .post-content {
  font-size: .9rem;
}

#access-tags>div.post-content>div {
  max-width: 80%;
}

#access-tags .post-tag {
  display: inline-block;
  line-height: 1rem;
  font-size: 0.85rem;
  background: none;
  border: 1px solid var(--main-border, #e9ecef);
  border-radius: .8rem;
  padding: .3rem .5rem;
  margin: 0 .35rem .5rem 0;
}

#access-tags .post-tag:hover {
  background-color: #2a408e;
  border-color: #2a408e;
  color: #fff;
  transition: none;
}

#access-lastmod ul>li {
  height: 1.8rem;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  list-style: none;
}

#access-lastmod ul a {
  color: #6c757d;
}

/*--- button back-to-top ---*/

#back-to-top {
  display: none;
  z-index: 1;
  cursor: pointer;
  position: fixed;
  background: var(--button-bg, #fff);
  color: var(--text-color, #686868);
  height: 2.6em;
  width: 2.7em;
  border-radius: 50%;
  border: 1px solid var(--main-border, #f1f1f1);
  transition: 0.2s ease-out;
  -webkit-transition: 0.2s ease-out;
}

#back-to-top:hover {
  transform: translate3d(0, -5px, 0);
  -webkit-transform: translate3d(0, -5px, 0);
}

/*--- Typography ---*/

h1 {
  font-size: 1.8rem;
  font-weight: 400;
}

h2 {
  font-size: 1.35rem;
  font-weight: 400;
}

h3 {
  font-size: 1.25rem;
}

h4 {
  font-size: 1.15rem;
}

h5 {
  font-size: 1.1rem;
}

h2, h3, h4 {
  line-height: 1.2;
  margin-bottom: 1rem;
}

blockquote {
  border-left: 5px solid var(--blockquote-border, #eee);
  padding-left: 1rem;
  color: var(--blockquote-text, #9a9a9a);
}

.post-content blockquote a {
  color: var(--link-color, #2a408e);
}

kbd {
  margin: 0 .3rem;
}

h2, h3, h4, sup {
  padding-top: 3.5rem;
  margin-top: -2.5rem;
}

.footnotes ol {
  margin-top: .5rem;
}

.footnotes ol>li {
  padding-top: .2rem;
  margin-top: -0.2rem;
}

.footnotes ol>li>p {
  padding-left: .2em;
}

.footnotes ol>li:not(:last-child) {
  margin-bottom: -.8rem;
}

.footnotes ol>li:target>p {
  background-color: var(--footnote-target-bg, lightcyan);
  width: fit-content;
  -webkit-transition: background-color 1.5s ease-in-out; /* Safari prior 6.1 */
  transition: background-color 1.5s ease-in-out;
}

a.footnote {
  margin: 0 .2em;
  border-bottom-style: none !important;
  -webkit-transition: background-color 1.5s ease-in-out; /* Safari prior 6.1 */
  transition: background-color 1.5s ease-in-out;
}

sup:target>a.footnote {
  background-color: var(--footnote-target-bg, lightcyan);
  padding: 0 2px;
}

a.reversefootnote {
  font-size: .6rem;
  position: absolute;
  line-height: 1;
  padding-top: .5em;
  margin-left: .5em;
  border-bottom-style: none !important;
}

.post-content a {
  color: var(--link-color, #2a408e);
  border-bottom: 1px dotted var(--link-underline-color, #c2c6cc);
}

p>a, span>a,
.post-preview a,
.categories a,
#tags a,
#page-category a,
#page-tag a,
#archives a,
#search-results a {
  color: var(--link-color, #2a408e);
}

.categories a,
.access a,
#archives a,
#page-tag a,
#page-category a,
#search-results a {
  border-bottom: none;
}

.post h1 {
  margin-top: 3rem;
}

#breadcrumb a:hover,
#search-results a:hover,
.post-preview a:hover,
.post-meta a:hover,
.post-content a:hover,
.post a:hover code,
footer a:hover,
#post-wrapper .post-content a:hover,
.license-wrapper .license-text a:hover,
#page .post-content a:hover,
#access-lastmod a:hover {
  color: #d2603a;
  border-bottom: 1px solid #d2603a;
  text-decoration: none;
}

.post em { /* MarkDown italic */
  padding-right: .2rem;
}

/*--- Begin of Markdown table style ---*/

div.post-content>table,
div.post-content li>table {
  min-width: 60%;
  border-collapse: collapse;
  border-spacing: 0;
  margin-bottom: 1.5rem;
}

table thead {
  border-bottom: solid 2px rgba(210, 215, 217, 0.75);
}

table thead+tbody tr:nth-child(2n) {
  background-color: var(--tb-even-bg);
}

table thead+tbody tr:last-child:nth-child(2n) {
  border-bottom: solid 1px var(--tb-odd-bg, rgba(210, 215, 217, 0.75));
}

table thead+tbody tr:nth-child(2n + 1) {
  background-color: var(--tb-odd-bg, #f8f9fa);
}

table thead th,
table tbody td {
  padding: .35rem .8rem;
  font-size: 95%;
}

/*--- post ---*/

.pageviews .fa-spinner {
  font-size: 80%;
}

.post-meta {
  font-size: 0.85rem;
  word-spacing: 1px;
}

.post-meta a {
  color: var(--link-color, #2a408e);
  border-bottom: 1px dotted var(--link-underline-color, #c2c6cc);
}

.post-meta a:not(:last-child) {
  margin-right: 2px;
}

.post-content {
  line-height: 1.8;
  font-size: 1rem;
  margin-top: 2rem;
  overflow-wrap: break-word;
  word-wrap: break-word;
}

.post-tag {
  display: inline-block;
  min-width: 2rem;
  text-align: center;
  background: var(--tag-bg, rgba(0, 0, 0, 0.075));
  border-radius: .34rem;
  padding: 0 .4rem;
  color: #818182;
  line-height: 1.6rem;
}

.post-tag:not(:first-child) {
  margin-left: .2rem;
}

.tag:hover,
.post-tag:hover {
  background: var(--tag-hover, rgb(222, 226, 230));
  transition: background 0.35s ease-in-out;
}

.post-tag:hover {
  border-bottom: none;
  text-decoration: none;
  color: #d2603a;
}

/* --- buttons --- */
.btn-lang {
  border: 1px solid !important;
  padding: 0 3px 1px 3px;
  border-radius: 3px;
}

/* --- Effects classes --- */

.loaded {
  display: block !important;
}

.d-flex.loaded {
  display: flex !important;
}

.unloaded {
  display: none !important;
}

.visable {
  visibility: visible !important;
}

.hidden {
  visibility: hidden !important;
}

.no-scroll {
  position: fixed;
  width: 100%;
}

.flex-grow-1 {
  -ms-flex-positive: 1!important;
  flex-grow: 1!important;
}

.btn-box-shadow {
  box-shadow: 0 0 8px 0 var(--main-wrapper-bg, #eaeaea) !important;
}

.topbar-up {
  top: -3rem !important; /* same as topbar height. */
}

.no-text-decoration {
  text-decoration: none;
}

.tooltip-inner { /* Overrided BS4 Tooltip */
  font-size: .7rem;
  max-width: 220px;
  text-align: left;
}

.disabled {
  color: rgb(206, 196, 196);
  pointer-events: auto;
  cursor: not-allowed;
}

.hide-border-bottom {
  border-bottom: none!important;
}

.input-focus {
  box-shadow: none;
  border-color: var(--input-focus-border, #e9ecef) !important;
  background: center !important;
}

/*--- Responsive Design ---*/

@media all and (max-width: 576px) {

  #main>div.row:first-child>div:first-child {
    min-height: calc(100vh - 3rem - 10rem); /* topbar is 3rem and footer is 10rem */
  }

  #post-wrapper {
    min-height: calc(100vh - 3rem - 10rem - 470px) !important;
  }

  #avatar>a {
    width: 5rem;
    height: 5rem;
  }

  #site-subtitle {
    margin-left: 1.8rem;
    margin-right: 1.8rem;
  }

  #post-wrapper h1 {
    margin-top: 2.2rem;
    font-size: 1.55rem;
  }

  .post-content {
    font-size: 1.08rem;
  }

  /* table text in small screens */
  div>table, p~table {
    width: 100%;
    table-layout: fixed;
    word-wrap: break-word;
  }

  $footer-height: 6rem;

  #main-wrapper {
    padding-bottom: $footer-height;
  }

  footer {
    height: $footer-height;
  }

  footer>div.d-flex {
    width: 90%;
    padding: 1.5rem;
    flex-wrap: wrap;
    justify-content: left!important;
    -ms-flex-pack: distribute!important;
    justify-content: space-around!important;
  }

  footer .footer-left,
  footer .footer-right {
    text-align: center;
  }

}

/* Sidebar is visibal */
@media all and (min-width: 831px) {

  #profile-wrapper {
    margin-top: 3rem;
  }

  #search-wrapper {
    width: 22%;
    min-width: 150px;
  }

  /* button 'back-to-Top' position */
  #back-to-top {
    bottom: 9.2rem;
    right: 1.2rem;
  }

  .topbar-up {
    box-shadow: none !important;
  }

  #topbar-title {
    text-align: left;
  }

  footer>div.d-flex {
    width: 92%;
  }

}

/* iPad 9.7" horizontal */
@media all and (min-width: 992px) and (max-width: 1024px) {
  #main-wrapper .col-lg-11 {
    -webkit-box-flex: 0;
    -ms-flex: 0 0 96%;
    flex: 0 0 96%;
    max-width: 96%;
  }
}


/* Hide SideBar and TOC */
@media all and (max-width: 830px) {

  .sidebar-expand {
    transform: translateX(0) !important;
  }

  .sidebar-expand~#main-wrapper {
    transform: translateX(260px) !important;
  }

  #sidebar {
    transform: translateX(-260px); /* hide */
    -webkit-transform: translateX(-260px);
  }

  #sidebar .cursor {
    -webkit-transition: none;
    -moz-transition: none;
    transition: none;
  }

  #main-wrapper {
    margin-left: 0;
  }

  #search-result-wrapper {
    width: 100%;
  }

  #page h1.dynamic-title {
    display: none;
  }

  #page h1.dynamic-title ~ .post-content {
    margin-top: 3rem;
  }

  #breadcrumb,
  #search-wrapper {
    display: none;
  }

  #topbar-wrapper {
    position: -webkit-sticky;
    position: sticky;
    left: 0;
  }

  .topbar-up {
    top: 0 !important;
  }

  #main>div.row:first-child>div:nth-child(1),
  #main>div.row:first-child>div:nth-child(2) {
    margin-top: 0;
  }

  #topbar-title,
  #sidebar-trigger,
  #search-trigger {
    display: block;
  }

  #search-wrapper.loaded~a {
    margin-right: 1rem;
  }

  #search-wrapper .fa-times-circle {
    right: 5.2rem;
  }

  #search-input {
    margin-left: 0;
    width: 95%;
  }

  #search-result-wrapper .post-content {
    letter-spacing: 0;
  }

  #search-hints {
    display: block;
    padding: 0 1rem;
  }

  #tags {
    -webkit-box-pack: center!important;
    -ms-flex-pack: center!important;
    justify-content: center!important;
  }

  sup {
    padding-top: 3.4rem;
  }

  .footnotes ol>li {
    padding-top: 3.5rem;
    margin-top: -4.3rem;
  }

  .footnotes ol>li:first-child {
    margin-top: -3.5rem;
  }
}


@media all and (min-width: 577px) and (max-width: 1199px) {
  footer>.d-flex>div {
    width: 312px;
  }
}


/* Compact icons in sidebar & TOC hidden */
@media all and (min-width: 832px) and (max-width: 1199px) {

  #sidebar {
    width: 210px;
  }

  #topbar-wrapper {
    left: 210px;
  }

  #search-result-wrapper {
    width: calc(100% - 210px);
  }

  #site-title {
    font-size: 1.3rem;
    margin-left: 0!important;
  }

  #site-subtitle {
    font-size: 90%;
    margin-left: 1rem;
    margin-right: 1rem;
  }

  #sidebar .sidebar-bottom {
    margin-left: 1.5rem;
    margin-right: 1.5rem;

  }

  #main-wrapper {
    margin-left: 210px;
  }

  #breadcrumb {
    width: 65%;
    overflow: hidden;
    text-overflow: ellipsis;
    word-break: keep-all;
    white-space: nowrap;
  }

}

/* Pannel hidden */
@media all and (max-width: 1199px) {
  #panel-wrapper {
    display: none;
  }

  #topbar {
    padding: 0;
  }

  #main>div.row {
    -webkit-box-pack: center!important;
    -ms-flex-pack: center!important;
    justify-content: center!important;
  }

  #search-results>div {
    max-width: 700px;
  }
}


/*--- desktop mode, both sidebar and panel are visible ---*/

@media all and (min-width: 1200px) {

  #main>div.row>div.col-xl-8 {
    -webkit-box-flex: 0;
    -ms-flex: 0 0 75%;
    flex: 0 0 75%;
    max-width: 75%;
    padding-left: 3%;
  }

  #topbar {
    padding: 0;
    max-width: 1070px;
  }

  #panel-wrapper {
    max-width: 300px;
  }

  #back-to-top {
    bottom: 9rem;
    right: 4.3rem;
  }

  #search-input {
    -webkit-transition: all .3s ease-in-out;
    transition: all .3s ease-in-out;
  }

  #search-result-wrapper {
    width: calc(100% - 260px);
  }

  #search-results>div {
    max-width: 46%;
  }

  #search-results>div:nth-child(odd) {
    margin-right: 1.5rem;
  }

  #search-results>div:nth-child(even) {
    margin-left: 1.5rem;
  }

  #search-results>div:last-child:nth-child(odd) {
    position: relative;
    right: 24.3%;
  }

}

@media all and (min-width: 1400px) {

  #main>div.row {
    padding-left: calc((100% - 1150px) / 2);
  }

  #main>div.row>div.col-xl-8 {
    max-width: 850px;
  }

  #search-result-wrapper {
    padding-right: 2rem;
  }

  #search-wrapper .fa-times-circle {
    right: 2.6rem;
  }

  #search-result-wrapper>div {
    max-width: 1110px;
  }

}

@media all and (min-width: 1400px) and (max-width: 1650px) {
  #topbar {
    padding-right: 2rem;
  }
}

@media all and (min-width: 1650px) {

  #breadcrumb {
    padding-left: 0;
  }

  #main>div.row>div.col-xl-8 {
    padding-left: 0;
  }

  #main>div.row>div.col-xl-8>div:first-child {
    padding-left: .55rem !important;
    padding-right: 1.9rem !important;
  }

  #main-wrapper {
    margin-left: 350px;
  }

  #panel-wrapper {
    margin-left: calc((100% - 1150px) / 10);
  }

  #topbar-wrapper {
    left: 350px;
  }

  #topbar {
    max-width: 1150px;
  }

  #search-wrapper {
    margin-right: 3%;
  }

  #sidebar {
    width: 350px;
  }

  #sidebar ul {
    margin-left: 5%;
  }

  #profile-wrapper {
    margin-top: 4rem;
    margin-bottom: 3rem;
    padding-left: 18%;
    -ms-flex-direction: column!important;
  }

  #avatar {
    -webkit-box-pack: normal !important;
    -ms-flex-pack: normal !important;
    justify-content: normal !important;
  }

  #avatar > a {
    width: 6.2rem;
    height: 6.2rem;
  }

  .profile-text {
    padding-left: .5rem;
    /* .d-flex */
    display: -webkit-box!important;
    display: -ms-flexbox!important;
    display: flex!important;
    /* .flex-wrap */
    -ms-flex-wrap: wrap!important;
    flex-wrap: wrap!important;
    /* .align-content-center */
    -ms-flex-line-pack: center!important;
    align-content: center!important;
  }

  #site-title a {
    font-size: 1.7rem;
    letter-spacing: 1px;
  }

  .profile-text>div {
    text-align: left !important;
    width: 100%;
  }

  #site-subtitle {
    word-spacing: 0;
    padding-right: 3rem;
    margin: .3rem 0 0 0;
  }

  #sidebar ul>li>a {
    padding-left: 2.5rem;
    -webkit-box-pack: start!important;
    -ms-flex-pack: start!important;
    justify-content: flex-start!important;
  }

  #sidebar .nav-link>span {
    letter-spacing: 3px;
  }

  #sidebar .nav-link>i {
    @include icon-round(1.65rem);
    line-height: 1rem;
    font-size: .6rem;
    padding: .5em 0 0 .1em;
    display: inline-block!important;
  }

  #sidebar .sidebar-bottom {
    margin-left: 3.5rem;
    margin-right: 3rem;
    font-size: 1.3rem;
    a {
      border: 1px solid;
      border-radius: 50%;
      font-size: 1rem;
      width: 2rem;
      height: 2rem;
      text-align: center;
      i {
        text-align: center;
        width: 1.25em;
        padding-top: .45rem;
      }
    }

  #mode-toggle-wrapper {
    font-size: .9rem;
  }

  #mode-toggle-wrapper>i {
    @include icon-round(2rem);
    padding-top: 0.5rem;
    bottom: 0;
  }

  .icon-border {
      height: 14px;
      margin-left: .2rem;
      margin-right: .2rem;
      margin-bottom: 0;
    }

    .icon-border+a {
      margin-left: 0;
    }
  }


  footer>div.d-flex {
    max-width: 1150px;
  }

  #search-result-wrapper {
    width: calc(100% - 350px); // 350px is the with of sidebar
  }

  #search-result-wrapper>div {
    max-width: 1150px;
  }

}

@media all and (min-width: 1700px) {

  #topbar-wrapper {
    padding-right: calc(100% - 350px - 1570px) /* 100% - 350px - (1920px - 350px); */
  }

  #main>div.row {
    padding-left: calc((100% - 1150px - 2%) / 2);
  }

  #panel-wrapper {
    margin-left: 3%;
  }

  footer {
    padding-right: calc(100% - 350px - 1180px);
  }

  #back-to-top {
    right: calc(100% - 1920px + 15rem);
  }

}


@media (min-width: 1920px) {
  #main>div.row {
    padding-left: 190px;
  }

  #search-result-wrapper {
    padding-right: calc(100% - 350px - 1530px);
  }

  #panel-wrapper {
    margin-left: 41px;
  }
}