@charset "utf-8";

body {
   
   background-color: #2884a3;            /* 背景色 */
   background-image: url("https://www.aikoku.net/michiko2023-07-20/images/yamato12j.jpg"); 
 
   background-size: cover;               /* 全画面 */
   background-attachment: fixed;         /* 固定 */
   background-position: center center;   /* 縦横中央 */
   font-family: "リュウミン B-KL";
  
} 


form {
  width: 100%;
  height: auto;
 
  margin: 0; /*上、左右、下へ空けるスペース*/
  padding: 60px 0px 60px 0px;
  position:absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
  background: rgba(0,0,0,0.4);
  text-align: center;
}

form h1{
  padding: 10px;
  margin: 0 20px 0; /*上、左右、下へ空けるスペース*/
}



form h2,form p {
  color: white;
  font-weight: 300;
  margin: 0 20px 10px; /*上、左右、下へ空けるスペース*/
  font-family: "リュウミン B-KL";
  font-size: 20px;
  line-height: 2em;
}

form p {
  font-size: 16px;
  margin: 0 20px 1em; /*上、左右、下へ空けるスペース*/
  line-height: 2em;
}

form input[type = "id"],form input[type = "password"] {
  border: 0;
  background: none;
  display: block;
  margin: 20px auto;
  border: 2px solid #f0f8ff;
  padding: 15px 10px;
  width: 250px;
  outline: none;
  border-radius: 24px;
  transition: 0.25s;
  text-align: center;
}

form input[type = "id"]:focus,form input[type = "password"]:focus {
  width: 280px;
  background-color: #f0f8ff;
}

form input[type = "botton"]{
  border: 0;
  background: none;
  display: block;
  margin: 20px auto;
  border: 2px solid #f0f8ff;
  padding: 15px 10px;
  width: 200px;
  outline: none;
  color: white;
  border-radius: 25px;
  transition: 0.25s;
  text-align: center;
  cursor: pointer;
}

form input[type = "botton"]:hover {
  background-color: #002699;
  border: 2px solid #fff;
  
}




@media only screen and (min-width: 0) and (max-width: 480px) {
/* 480pxまでの幅の場合に適用される */
*{
    margin:0:
    padding:0;
}

 form {
  width: 450px;
  height: auto;
  padding-top: 150px;
  padding-bottom: 100px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
  background: rgba(0,0,0,0.5);
  text-align: center;
}