body {
  line-height: 2.40;
  letter-spacing: 0.22rem;
  padding-top: 3.2rem;

  font-family: 'Noto Sans JP', sans-serif;
}

textarea {
  height: 10em;
}

nav {
  line-height: 1.20;
}

nav > div {
  margin-top: initial;
  margin-bottom: initial;
}

.navbar-light .navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.8);
}

.navbar-light .navbar-brand {
  color: rgba(255, 255, 255, 0.8);
}

.navbar-light .navbar-nav .nav-link.disabled {
  color: rgba(150, 150, 150, 0.8);
}

.bg-opacity {
  background: rgba(0, 0, 0, 0.6);
}


@media (max-width: 768px) {
  .col-md-4 {
    text-align: center;
  }

  .card-thumbnail {
    width: auto;
    max-height: 480px;
    object-fit: contain;
  }
  
  .album-thumbnail {
    width: auto;
    max-height: 360px;
    object-fit: contain;
  }
}

@media (min-width: 992px) {
  .card-thumbnail {
    width: auto;
    max-height: 576px;
    object-fit: contain;
  }

  .album-thumbnail {
    width: auto;
    max-height: 480px;
    object-fit: contain;
  }
}

.h1, h1 {
  font-size: 2.4rem;
  margin-top: 1.3rem;
  margin-bottom: 1.3rem;
  text-align: center;
}

.h2, h2 {
  font-size: 2.0rem;
  margin-top: 1.2rem;
  margin-bottom: 1.2rem;
  text-align: center;
}

.h3, h3 {
  font-size: 1.40rem;
  margin-top: 1.1rem;
  margin-bottom: 1.1rem;
}

.h4, h4 {
  font-size: 1.20rem;
}

.h5, h5 {
  font-size: 1.10rem;
}

.h6, h6 {
  font-size: 1.05rem;
}