.thin-notice {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 12px;
  border-bottom: 1px solid #d8caa8;
  background: #fff5d9;
  color: #594817;
  font: 600 .75rem/1.35 system-ui, sans-serif;
}

.thin-notice[hidden] { display: none; }
.thin-notice > div { display: flex; gap: 6px; }

.thin-notice button {
  padding: 5px 9px;
  border: 1px solid #a58e55;
  border-radius: 4px;
  background: #fffdf8;
  color: #473b20;
  font: 600 .72rem/1 system-ui, sans-serif;
}

.thin-notice button:first-child {
  border-color: #315744;
  background: #315744;
  color: white;
}