body{
  margin:0;
  font-family: system-ui, -apple-system, "Noto Sans JP", sans-serif;
  background:#fff;
  color:#111;
}

.wrap{
  max-width:820px;
  margin:0 auto;
  padding:24px 16px;
}

h1{ margin-bottom:8px; }
.lead{ color:#555; }

.card{
  border:1px solid #ddd;
  border-radius:10px;
  padding:16px;
}

.grid{
  display:grid;
  grid-template-columns: repeat(3,1fr);
  gap:12px;
}

label span{
  font-size:12px;
  color:#666;
}

input{
  width:100%;
  padding:8px;
  border:1px solid #ccc;
  border-radius:6px;
}

.actions{
  grid-column:1/-1;
  display:flex;
  gap:10px;
}

button{
  padding:6px 14px;
  border:1px solid #ccc;
  background:#fff;
  border-radius:6px;
  cursor:pointer;
}

button.ghost{
  background:transparent;
}

.result{
  margin-top:16px;
  border-top:1px dashed #ddd;
  padding-top:14px;
}

.meta{
  font-size:12px;
  color:#666;
  margin-bottom:8px;
}

.out{
  border:1px solid #ddd;
  border-radius:8px;
  padding:12px;
  background:#fafafa;
  display:grid;
  gap:10px;
}

.row{
  display:flex;
  align-items:center;
  gap:10px;
}

.label{
  width:130px;
  font-size:12px;
  color:#666;
}

.value{
  font-size:18px;
  font-weight:bold;
  word-break:break-all;
}

.copy{
  font-size:12px;
  padding:4px 10px;
}

.copy-status{
  font-size:12px;
  color:#006400;
}

.login-link{
  margin-top:12px;
  text-align:right;
}

.login-link a{
  font-size:14px;
  color:#0645ad;
  text-decoration:none;
}

.login-link a:hover{
  text-decoration:underline;
}

.note{
  margin-top:8px;
  font-size:12px;
  color:#666;
}

@media (max-width:720px){
  .grid{ grid-template-columns:1fr; }
}