@charset "UTF-8";


/* 色の登録 */
:root {
  --line-color: #000;
  --text-color: #333;
  --cover-color: #48a1ea;
  --cover2-color: #6da7d6;
  --title-color: #2f2e2e;
  --base-color: #f2efe7;
  --color2: #c6c2bd;
}

/* --------------------------------
  reset
-------------------------------- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
ul {
  list-style: none;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  max-width: 100%;
  vertical-align: bottom;
}
html {
  font-size: 100%;
}


/* --------------------------------
  body
-------------------------------- */
body {
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 100vh;
  background-color: #fff;
  color: var(--text-color);
  font-size: 1.0rem;
  font-family: sans-serif;
  line-height: 1.8;
}


/* --------------------------------
  header
-------------------------------- */
.header {
  padding-block: 40px;
  background-color: var(--cover-color);
  text-align: center;
}
  .header h1 {
    font-size: 1.5rem;
  }
  .header h1::first-line {
    font-size: 1.125rem;
  }
  .btn {
    display: inline-block;
    width: 100%;
    margin-top: 10px;
    border: #fff;
  }
  .btn a {
    padding: 6px 20px;
    border: 2px solid var(--text-color);
    color: var(--text-color);
    font-weight: 700;
    transition: all .3s;
  }
  .btn a:hover {
    padding: 6px 20px;
    background-color: #fff;
    color: var(--text-color);
  }
  
  @media screen and (max-width: 767px) {
    .header h1 {
      white-space: pre-line;
    }
  }

/* --------------------------------
  footer
-------------------------------- */
.footer {
  padding: 20px 0;
  background-color: var(--cover2-color);
  text-align: center;
}


/* --------------------------------
  main
-------------------------------- */
.main {
  width: 80%;
  margin: 0 auto;
  padding: 30px;
  @media(width<=767px){
    width: 100%;
  }
}


.container{
  max-width: 480px;
  padding: 20px 10px 10px;
  margin: 0 auto 20px;

  .main-visual{
    width: 100%;
    aspect-ratio: 1/1.1;
    margin-bottom: 20px;
    border: 1px solid #000;
      >img{
        object-fit: cover;
        width: 100%;
        height: 100%;
}
}
}


.thumbnail{display: flex;
            flex-wrap: wrap;
            gap: 5px;
            

  >li{width: calc((100% - 15px) / 4);
      aspect-ratio: 1/1;
      border: 1px solid #000;
      /* カーソルの種類を指マークにする */
      cursor: pointer;

          >img{object-fit: cover;
              width: 100%;
              height: 100%;
              &:hover{filter: grayscale(1);}

}
}
}