body.request-success-open { overflow: hidden; }
dialog.request-success {
  box-sizing: border-box;
  width: min(480px, calc(100% - 32px));
  max-height: calc(100dvh - 32px);
  margin: auto;
  padding: 32px;
  overflow: auto;
  border: 1px solid #454545;
  border-top: 3px solid #cf3020;
  border-radius: 4px;
  background: #202121;
  color: #fff;
  font: 400 16px/1.5 var(--font-text, Arial), sans-serif;
  letter-spacing: 0;
  box-shadow: 0 20px 64px #0006;
}
dialog.request-success::backdrop { background: #101111c7; }
dialog.request-success h2 { margin: 0 0 12px; color: #fff; font-size: 28px; line-height: 1.2; overflow-wrap: anywhere; }
dialog.request-success p { margin: 0 0 24px; color: #ddd; font-size: 16px; line-height: 1.5; }
dialog.request-success button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 24px;
  border: 1px solid #cf3020;
  border-radius: 2px;
  background: #cf3020;
  color: #fff;
  font: 700 16px/1.3 var(--font-text, Arial), sans-serif;
  cursor: pointer;
}
dialog.request-success button:hover { background: #b52a1d; }
dialog.request-success button:focus-visible { outline: 2px solid #fff; outline-offset: 4px; }
@media (max-width: 480px) {
  dialog.request-success { padding: 24px; }
  dialog.request-success h2 { font-size: 24px; }
  dialog.request-success button { width: 100%; }
}