body{
  margin: 0;
  font-family: 'Noto Sans JP', sans-serif;
}

body{
  background-color: #b61924;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

#particles-js{
  position: fixed;
  height: 100vh;
  width: 100vw;
  z-index: 1;
  transition: filter 2s, background-color 2s;
}

.content{
  position: relative;
  z-index: 2;
  background-color: whitesmoke;
  border-radius: 8px;
  padding: 20px;
  min-width: 300px;
  box-shadow: 0 2px 14px 0 rgba(0, 0, 0, 0.2);
}

.content h1{
  margin: 10px 0 20px;
  text-align: center;
  font-size: 34px;
}

.content .logo{
  height: 50px;
  margin: 20px 20px 20px;
}

.content .logo img{
  display: block;
  height: 50px;
  width: 260px;
}

label{
  display: block;
  padding: 10px 0;
}

input{
  display: block;
  margin-top: 8px;
  padding: 10px;
  font-size: 16px;
  border-radius: 5px;
  border: 1px solid silver;
  background-color: white;
  outline: none;
  width: calc(100% - 22px);
}

input:focus{
  border-color: black;
}

.errMsg{
  padding: 7px;
  text-align: center;
  margin-bottom: 15px;
  background: var(--err-bg);
  color: var(--err-color);
  border: var(--err-border);
  border-radius: 5px;
}

#btnLogin{
  width: 100%;
  font-size: 16px;
  font-weight: bold;
  margin: 30px 0 20px;
  padding: 14px;
}

button.primary{
  cursor: pointer;
  outline: none;
  padding: 14px;
  margin: 5px;
  border-radius: 5px;
  color: var(--btn-primary-color);
  border: var(--btn-primary-border);
  background: var(--btn-primary-bg);
}

button.primary:hover{
  color: var(--btn-primary-hover-color);
  border: var(--btn-primary-hover-border);
  background: var(--btn-primary-hover-bg);
}

button.primary:active{
  color: var(--btn-primary-active-color);
  border: var(--btn-primary-active-border);
  background: var(--btn-primary-active-bg);
}

.blur{
  filter: blur(5px);
  -webkit-filter: blur(5px);
  background-color: rgba(0,0,0,0.1) !important;
}