body {
  background-color: #000;
  color: #fff;
  font-family: "Noto Sans JP", sans-serif;
  line-height: 1.8;
}
h2, h3 {
  color: #ffd700;
  border-left: 8px solid #ffd700;
  padding-left: 0.5em;
  margin: 0;
}
h3 {
  margin-top: 2em;
  display: inline-block;
  background: #ffd700;
  padding: 0.5rem 1rem;
  border-radius: 10px;
  color: #000;
  font-weight: bold;
  font-size: 1.5rem;
}
a {
  color: #66ccff;
  text-decoration: underline;
}
a:hover {
  color: #99e6ff;
}
.container {
  max-width: 900px;
  padding: 2rem 1.5rem;
}
.section {
  background: rgba(255,255,255,0.1);
  border-radius: 8px;
  padding: 3rem 1.5rem 1.5rem;
  margin-bottom: 2rem;
}
p, ul { margin-top: 1rem; }
ul {
  padding-left: 1.2rem;
}

header {
  background: url(../images/bg.jpg) no-repeat 0 50%;
  background-size: cover;
  margin: 0;
  padding: 6rem 1rem 4rem 1rem;
}
header h1 {
  color: #fff;
  text-shadow: 2px 2px 10px #000;
  font-weight: bold;
  font-size: 3rem;
}

strong.theme {
  font-size: 4rem;
}

code {
  font-size: 1.1rem;
}

img {
  max-width: 100%;
  height: auto;
}

.main-wrap {
  background: #06143e;
  border-radius: 20px;
  margin: 20px auto 0 auto;
  padding: 2rem 0.5rem;
  text-align: center;
  max-width: 800px;
}

.btn-main {
  margin-top: 40px;
}
.btn-main a {
  color: #fff;
  padding: 10px 20px;
  text-decoration: none;
  font-size: 1.2rem;
}

.footer-wrap {
  margin-top: 40px;
}

.footer-wrap a {
  color: #fff;
}
.footer-wrap a:hover {
  text-decoration: none;
}

@media screen and (min-width: 768px) {
  .footer-wrap {
    margin-top: 120px;
  }
}


/*--------------------
   Buttons
---------------------*/
.btn {
  /*text-transform: capitalize;*/
  position: relative;
  z-index: 1;
  font-weight: 700;
  text-align: center;
  border: 0;
  border-radius: 40px;
  overflow: hidden;
  background: linear-gradient(to right, #37b9ff, #212cfa);
  -webkit-transition: all 0.3s linear;
  -moz-transition: all 0.3s linear;
  -ms-transition: all 0.3s linear;
  -o-transition: all 0.3s linear;
  transition: all 0.3s linear;
}

.btn:focus,
.btn.active,
.btn:active {
  -moz-box-shadow: none;
  -webkit-box-shadow: none;
  box-shadow: none;
  outline: none;
}

.btn:not(.btn__link) {
  box-shadow: 0px 3px 63px 0px rgba(40, 40, 40, 0.11);
}

.btn:not(.btn__link):before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background-color: #222;
  -webkit-transform: scaleX(0);
  -moz-transform: scaleX(0);
  -ms-transform: scaleX(0);
  -o-transform: scaleX(0);
  transform: scaleX(0);
  -webkit-transform-origin: right center;
  -moz-transform-origin: right center;
  -ms-transform-origin: right center;
  -o-transform-origin: right center;
  transform-origin: right center;
  -webkit-transition: transform 0.24s cubic-bezier(0.37, 0.31, 0.31, 0.9);
  -moz-transition: transform 0.24s cubic-bezier(0.37, 0.31, 0.31, 0.9);
  -ms-transition: transform 0.24s cubic-bezier(0.37, 0.31, 0.31, 0.9);
  -o-transition: transform 0.24s cubic-bezier(0.37, 0.31, 0.31, 0.9);
  transition: transform 0.24s cubic-bezier(0.37, 0.31, 0.31, 0.9);
}

.btn:not(.btn__link):hover:before {
  -webkit-transform: scaleX(1);
  -moz-transform: scaleX(1);
  -ms-transform: scaleX(1);
  -o-transform: scaleX(1);
  transform: scaleX(1);
  -webkit-transform-origin: left center;
  -moz-transform-origin: left center;
  -ms-transform-origin: left center;
  -o-transform-origin: left center;
  transform-origin: left center;
}