body{
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  margin: 0;
  padding: 0;
  background: #f7f7f8;
  color: #111;
}
.container{
  max-width: 760px;
  margin: 0 auto;
  padding: 24px;
}
.card{
  background: #fff;
  border-radius: 12px;
  padding: 16px;
  box-shadow: 0 1px 6px rgba(0,0,0,0.06);
  margin-bottom: 16px;
}
h1{ font-size: 22px; margin: 0 0 12px; }
label{ display:block; margin-top: 10px; font-weight: 600; }
input, select, button, textarea{
  width: 100%;
  box-sizing: border-box;
  padding: 10px;
  margin-top: 6px;
  border: 1px solid #ddd;
  border-radius: 10px;
  font-size: 16px;
}
button{
  cursor: pointer;
  background: #111;
  color: #fff;
  border: none;
  margin-top: 14px;
}
.small{ font-size: 13px; color: #444; }
.code{ font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; }
.notice{
  padding: 10px 12px;
  background: #fff8db;
  border: 1px solid #ffe7a3;
  border-radius: 10px;
  margin-top: 10px;
}
.success{ background: #eafaf1; border-color:#bfead1; }
.error{ background: #ffefef; border-color:#ffc0c0; }