.username-dialog {
  box-sizing: border-box;
  width: min(440px, calc(100vw - 32px));
  max-height: calc(100dvh - 32px);
  padding: 28px;
  border: 1px solid var(--ui-line, #bacaca);
  border-radius: 16px;
  background: var(--ui-surface, #fff);
  color: var(--ui-text, #18383b);
  overflow-y: auto;
}

.username-dialog::backdrop {
  background: rgb(4 22 26 / 65%);
}

.username-dialog-form {
  display: grid;
  gap: 12px;
}

.username-dialog-form h2,
.username-dialog-form p {
  margin: 0;
}

.username-dialog-form p,
.username-dialog-form small {
  line-height: 1.6;
}

.username-dialog-form input {
  box-sizing: border-box;
  width: 100%;
  min-width: 0;
  min-height: 46px;
  padding: 10px 12px;
  border: 1px solid var(--ui-line-strong, #94aaaa);
  border-radius: 8px;
  background: var(--ui-input, #fff);
  color: inherit;
  font: inherit;
}

.username-dialog-form button {
  min-height: 44px;
  border: 0;
  border-radius: 8px;
  background: var(--ui-accent, #075d68);
  color: var(--ui-accent-contrast, #fff);
  font: inherit;
  cursor: pointer;
}

.username-dialog-form button:disabled {
  opacity: 0.6;
  cursor: wait;
}

.username-dialog-form .username-signout {
  background: transparent;
  color: inherit;
}

.username-dialog-error {
  color: var(--ui-danger, #b3261e);
}

.username-dialog-error:empty {
  display: none;
}