*{box-sizing:border-box}
body{
  margin:0;
  font-family:Arial,sans-serif;
  color:#fff;
}
.background{
  position:fixed;
  inset:0;
  background:url("bg.jpg") center/cover no-repeat;
  filter:brightness(0.4);
}
.app{
  position:relative;
  max-width:480px;
  margin:auto;
  padding:16px;
}
h1{text-align:center}
input,select,button{
  width:100%;
  padding:12px;
  margin:6px 0;
  border-radius:8px;
  border:none;
  background:#1e1e1e;
  color:#fff;
}
button{
  background:#ff4081;
  font-weight:bold;
}
table{
  width:100%;
  margin-top:10px;
  border-collapse:collapse;
  background:rgba(0,0,0,0.6);
}
td,th{
  padding:6px;
  border-bottom:1px solid #444;
}
.note{
  margin-top:12px;
  font-style:italic;
  opacity:.8;
}
#admin{
  position:fixed;
  bottom:6px;
  right:6px;
  opacity:.3;
}