@charset "utf-8";

.main {
  background-image: url("../img/whatsmsm/whatsmsm_bg.jpg");
  margin:0 auto 0 auto;
	position:relative;
	z-index:0;
  width: 980px;
  height: 570px;
	background-repeat:  no-repeat;
	background-position: center center;
	background-size:cover;
}
.board{
  background-image: url("../img/whatsmsm/bg_whiteboard.png");
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;

  width: 800px;
  height: 570px;

  margin: 0 auto; 
  position: relative;
}
/* ▽ホワイトボードヘッダー部分▽　*/
.board-header{
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 650px;
  height: 60px;
  top: 20px;
  justify-content: center;
  display: flex;
  align-items: center;
}
.header-title{
  white-space: nowrap;
  position:absolute;
  left:50%;
  transform:translateX(-50%);
}
.neon-main {
  font-size: 50px;
}
.neon-sub {
  font-size: 30px; 
}
.neon-main,
.neon-sub{
  position: relative;
  color: #0051ff;
  display: inline-block;
  width: fit-content;
  line-height: 1;
}
.neon-main::before{
  content: attr(data-text);
  position: absolute;
  z-index: -1;
  -webkit-text-stroke: 5px #00eaff;
  text-shadow:
    0 0 6px #00eaff,
    0 0 12px #00eaff,
}
.neon-sub::before {
  content: attr(data-text);
  position: absolute;
  z-index: -1;
  -webkit-text-stroke: 4px #00eaff;
  text-shadow:
    0 0 5px #00eaff,
    0 0 10px #00eaff,
}
.back-btn{
  position:absolute;
  height: 20px;
  left:0;
  display: flex;
  align-items: center;    
  justify-content: center; 
  width: 100px;
  height: 45px;
}
.back-btn img {
  width: 100%;
}
.back-btn-top{
  position:absolute;
  height: 20px;
  left:0;
  display: flex;
  align-items: center;    
  justify-content: center; 
  width: 100px;
  height: 45px;
}
.back-btn-top img {
    width: 100%;
}
.next-btn{
  position:absolute;
  right:0;
  display: flex;
  align-items: center;    
  justify-content: center; 
  width: 100px;
  height: 45px;
}
.next-btn img {
    width: 100%;
}
/* △ホワイトボードヘッダー部分ここまで△　*/

/* ▽ホワイトボードコンテンツ部分▽　*/
.board-content-wrap{
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 760px;
  top: 86px;

  background: rgba(0, 0, 0, 0);  
  overflow-y: auto;
  overflow-x: hidden;
  height: 420px; 
}
.board-content-wrap::-webkit-scrollbar {
  width: 20px;
}
.board-content-wrap::-webkit-scrollbar-track {
  background: #ffffff;
  border-radius: 999px;
  margin-top: 40px;
  margin-bottom: 15px;
}
.board-content-wrap::-webkit-scrollbar-thumb {
  background: #2ec5f4;
  border-radius: 999px;
  border: 4px solid #ffffff;
}
.board-content-wrap::-webkit-scrollbar-thumb:hover {
  background: #1fb7e6;
}
.board-content{
  width: 700px; 
  padding-top: 30px;
  height: calc(100% - 50px);

  /* contentをcontent-wrap内で中央配置するためのオフセット ((760px - 700px) / 2) */
  margin-left: 30px; 
}
.board-content.space-none {
  padding-top: 0;
  height: 100%;
}
.text{
  color: #0a2c74;
  padding: 0 20px 0px 20px;
  position: relative;
  width: 90%;
  margin: 0 auto;
  line-height: 1.5;
  font-family: "Meiryo", sans-serif;
  font-weight: bold;
  font-size: 12px;
   white-space: nowrap;
}
.text-padding {
  padding-bottom: 20px;
}
.notice-text {
  color: red; 
  font-size: 24px;
  margin-bottom: 20px;
 }
.content-header {
  display: flex;
  align-items: center;
  padding: 0px 20px 5px 20px;
  position: relative;
  width: 90%;
  margin: 0 auto;
  font-family: "Meiryo", sans-serif;
  font-weight: bold;
  font-size: 12px;
}
.content-header-text {
  background: linear-gradient(
    to bottom,
    #ffffff 10%,
    #dfffff 20%,
    #93f2ff 40%,
    #49dbff 100%
  );
  font-size: 16px;
  font-weight: bold;
  display: inline-flex;
  align-items: center;
  width: auto;
  white-space: nowrap;
  color: #8eefff;
  background-clip: text;
  color: transparent;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  -webkit-text-stroke: 0.5px #0026ff;
}
.content-header-square {
  width: 10px;
  height: 10px;
  min-width: 10px;
  min-height: 10px;
  background: #0b1b7c;
  margin-right: 8px;
  flex: 0 0 10px;
}
/* △ホワイトボードコンテンツ部分ここまで△　*/

/* ▽ホワイトボードフッター部分▽　*/
.board-footer{
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 85px;
  top: 450px;

}
.top-btn{
  position:absolute;
  right:0;
  margin-top: 5px;
  margin-right: 30px;
  display: inline-block;
    width: 100px;
    height: 45px;
}
.top-btn img {
    width: 100%;
    height: 100%;
    display: block;
}
/* △ホワイトボードフッター部分ここまで△　*/