@font-face {
  font-family: 'MiSans';
  src: url('../fonts/MiSans-Light.woff');
}

header {
  filter: drop-shadow(-2px -2px 2px rgba(0, 0, 0, 0.1)) drop-shadow(1px 2px 2px rgba(0, 0, 0, 0.15));
  border-radius: 0.5rem;
}

body {
  font-family: "MiSans", "Meiryo UI", "YaHei Consolas Hybrid", Consolas, "Malgun Gothic", "Segoe UI", "Trebuchet MS", Helvetica, monospace, monospace;
  position: relative;
  width: 100%;
  height: 100%;
  color: #000;
  background-color: #fff;
}

.btn{
  font-family: "MiSans", "Meiryo UI", "YaHei Consolas Hybrid", Consolas, "Malgun Gothic", "Segoe UI", "Trebuchet MS", Helvetica, monospace, monospace;
}

a {
  transition: all .2s ease-in-out;
  color: #01a2e7;
}

.masthead {
  position: relative;
  width: 100%;
  height: auto;
  padding: 200px 0;
  text-align: center;
  color: #fff;
  background: no-repeat center center;
  background-color: #000;
  background-size: cover;
  background-attachment: scroll;
}

@media (min-width: 768px) {
  .masthead {
    height: 100%;
    padding: 0;
  }
}

.masthead:before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #6f6666;
  opacity: 0.5;
}

.masthead .page-heading {
  color: #ffffff;
}

h1, .h1, h2, .h2, h3, .h3, h4, .h4, h5, .h5, h6, .h6 {
  font-family: "MiSans", "Meiryo UI", "YaHei Consolas Hybrid", Consolas, "Malgun Gothic", "Segoe UI", "Trebuchet MS", Helvetica, monospace, monospace;
  font-weight: 700;
  margin: 0 0 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

@media (min-width: 992px) {
  #mainNav.navbar-shrink {
    position: fixed;
    top: -80px;
    transition: top 0.5s;
    border-bottom: 0 solid rgba(255, 255, 255, .3);
    background-color: rgba(20, 212, 255, 0.48);
  }
}

#mainNav {
  font-family: "MiSans", "Meiryo UI", "YaHei Consolas Hybrid", Consolas, "Malgun Gothic", "Segoe UI", "Trebuchet MS", Helvetica, monospace, monospace;
  margin-bottom: 0;
  text-transform: uppercase;
  border-bottom: 0 solid rgba(255, 255, 255, .3);
  background-color: transparent;
}

@media (max-width: 768px) {
  #mainNav {
    font-family: "MiSans", "Meiryo UI", "YaHei Consolas Hybrid", Consolas, "Malgun Gothic", "Segoe UI", "Trebuchet MS", Helvetica, monospace, monospace;
    margin-bottom: 0;
    text-transform: uppercase;
    border-bottom: 0 solid rgba(255, 255, 255, .3);
    background-color: #2fb7f1;
  }
}

#mainNav a:hover {
  color: #01a2e7;
}

@media (max-width: 768px) {
  #mainNav a {
    color: #ffffff;
    text-align: center;
  }
}

@media (max-width: 768px) {
  #mainNav .navbar-toggler {
    font-size: 14px;
    padding: 11px;
    color: rgb(255, 255, 255);
    border: 1px solid rgb(255, 255, 255);
  }
}

::selection {
  color: #01a2e7;
  background: rgba(187, 254, 217, 0.3);
}

.article-list p {
  color: #7d8285;
}

.article-list h2 {
  font-weight: bold;
  margin-bottom: 40px;
  padding-top: 40px;
  color: inherit;
}

@media (max-width: 767px) {
  .article-list h2 {
    margin-bottom: 25px;
    padding-top: 25px;
    font-size: 24px;
  }
}

.article-list .articles {
  padding-bottom: 40px;
}

.article-list .item {
  padding-top: 50px;
  min-height: 425px;
  text-align: center;
}

.article-list .item .name {
  font-weight: bold;
  font-size: 16px;
  margin-top: 20px;
  color: inherit;
}

.article-list .item .description {
  font-size: 14px;
  margin-top: 15px;
  margin-bottom: 0;
}

.article-list .item .action {
  font-size: 24px;
  width: 24px;
  margin: 22px auto 0;
  line-height: 1;
  display: block;
  color: #4f86c3;
  opacity: 0.85;
  transition: opacity 0.2s;
  text-decoration: none;
}

.article-list .item .action:hover {
  opacity: 1;
}

.page-link {
  position: relative;
  display: block;
  color: #6dd0fb;
  text-decoration: none;
  background-color: #fff;
  border: 1px solid #dee2e6;
  transition: color .15s ease-in-out, background-color .15s ease-in-out, border-color .15s ease-in-out, box-shadow .15s ease-in-out;
}

.fixed-top {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  z-index: 1030;
}

footer a {
  color: #000000;
  font-size: 14px;
  text-decoration: none;
}

main {
  margin-top: 20px;
  padding-top: 20px;
  padding-bottom: 20px;
  text-align: start;
  padding-left: 20px;
  padding-right: 20px;
}

#introduction p {
  text-indent: 2rem;
}


#ArticleInfo {
  border: var(--bs-info);
  border-style: dotted;
  border-width: 1px;
  filter: drop-shadow(-2px -2px 2px rgba(0, 0, 0, 0.1)) drop-shadow(1px 2px 2px rgba(0, 0, 0, 0.15));
  border-radius: 0.5rem;
}

#ArticleInfo img {
  margin-top: 10px;
}

#username {
  margin-top: 10px;
}

#InfoTable a {
  text-decoration: none;
}

form a {
  color: #ffffff;
  text-decoration: none;
}

form a:hover{
  color: #0dcaf0;
}

.form-control:focus {
  border-color: var(--bs-info);
  box-shadow: 0 0 0 0.25rem rgb(20, 212, 255, 0.48);
  color: #01a2e7;
}

.form-control {
  display: block;
  width: 100%;
  padding: 0.5rem 0.5rem;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1;
  color: #000000;
  background-color: #fff;
  background-clip: padding-box;
  border: 1px solid #ced4da;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  border-radius: 0.25rem;
  transition: border-color .15s ease-in-out, box-shadow .15s ease-in-out;
}

#submit {
  color: #fff;
  background-color: #2fb7f1;
  box-shadow: 3px 3px 3px rgba(139, 204, 208, 0.57);
}

.sidebar-list a {
  display: block;
  color: #ff7c7c;
  text-decoration: none;
}

.sidebar-list a:hover {
  text-indent: 2rem;
  background: #d1f1ff;
  border-radius: 0.5rem;
}

.sidebar-list td {
  margin: 0;
}

.sidebar-list {
  border-radius: 0.5rem;
  border: dashed 1px #66ccff;
  overflow: hidden;
  margin-left: 10px;
  flex: 1;
}

#catalog-article {
  flex: 2;
  margin-left: 10px;
  position: relative;
}

.messages {
  text-indent: 2rem;
  clear: both;
  padding: 10px 15px 10px 15px;
  border-radius: 10px 10px 10px 0;
  background: rgba(0, 0, 0, 0.3);
  margin: 10px auto 20px;
  line-height: 1.4;
  position: relative;
  text-shadow: 0 1px 1px rgb(0 0 0 / 20%);
  width: auto;
  max-width: 800px;
}

.messages::before {
  content: "";
  position: absolute;
  bottom: -6px;
  border-top: 6px solid rgba(0, 0, 0, 0.3);
  left: 0;
  border-right: 7px solid transparent;
}

.editormd-tex {
  font-size: 12px;
}

#catalog-list {
  filter: drop-shadow(-2px -2px 2px rgba(0, 0, 0, 0.1)) drop-shadow(1px 2px 2px rgba(0, 0, 0, 0.15));
  border-radius: 0.5rem;
}

form {
  backdrop-filter: blur(5px);
  position: relative;
  max-width: 360px;
  margin: auto;
  background: inherit;
  padding: 2rem;
  border-radius: 5px;
  border: 1px solid rgba(255, 255, 255, 0.5);
}