@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;
}



.wrapper{
  max-width: 80%;
  font-family: sans-serif;
  margin: 0 auto;
  text-align: center;
}

.num_btn{
  margin: 20px 0;
}

.result{
  max-width: 400px;
  aspect-ratio: 2/0.7;
  margin: 40px auto 10px;
  padding: 20px;
  border: 1px solid #666;
  background-color: #fff;
  text-align-last: left;
}

strong{color: #f00;}

.num_btn button{
  margin: 10px;
  padding: 5px 10px;
  font-size: 16px;
  cursor: pointer;
  border-radius: 3px;
}

@media (max-width: 767px) {
  .num_btn>button{
    display: block;
    width: 70%;
    margin: 0 auto 5px;
    }

  .wrapper{
    width: 100%;
    >p{
    text-align-last: left;
    }}

  .result{
    width: 100%;
    padding: 5px;
    aspect-ratio: 2/1.1;
    margin-top: 20px;
    >p{font-size: 14px;}
    }

  .main{
    width: 100%;
    padding: 10px 20px;
}
}