.auth-body {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 24px 16px;
  background: var(--surface);
}
.auth-shell {
  width: min(400px, 100%);
}
.auth-card {
  padding: 28px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.auth-title {
  margin: 0;
  margin-bottom: 24px;
}
.auth-sub {
  color: var(--fg-muted);
  margin: 8px 0 20px;
  overflow-wrap: anywhere;
}
.auth-heading {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  line-height: 1.3;
  overflow-wrap: anywhere;
}
.auth-sub code {
  font-family: ui-monospace, monospace;
  background: var(--surface-raised);
  padding: 1px 5px;
  border-radius: var(--radius);
}
.auth-tabs {
  display: flex;
  border-bottom: 1px solid var(--line);
  margin-bottom: 20px;
}
button,
input {
  font: inherit;
}
button {
  cursor: pointer;
}
.auth-tab {
  color: var(--fg-muted);
  flex: 1;
  border: 0;
  border-bottom: 2px solid transparent;
  padding: 10px;
  background: transparent;
}
.auth-tab[aria-selected="true"] {
  border-bottom-color: var(--brand);
  color: var(--brand);
}
.field {
  display: block;
  margin-bottom: 16px;
}
.field-label {
  display: block;
  margin-bottom: 4px;
}
.auth-remember {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}
.auth-remember input {
  width: 16px;
  height: 16px;
  flex: 0 0 16px;
  margin: 0;
  accent-color: var(--brand);
}
.field-input {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  color: var(--fg);
  background: var(--bg);
}
.btn {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--fg);
  padding: 10px;
}
.btn--primary {
  background: var(--brand);
  border-color: var(--brand);
  color: var(--on-brand);
}
.btn--primary:hover {
  background: var(--brand-hover);
}
.btn--block {
  width: 100%;
}
button:disabled {
  opacity: 0.6;
  cursor: wait;
}
.auth-hint {
  color: var(--fg-muted);
  font-size: 13px;
}
.auth-error {
  color: var(--danger);
  overflow-wrap: anywhere;
}
.auth-platform {
  display: block;
  margin-top: 16px;
  color: var(--brand);
  text-align: center;
}
.device-code {
  font-family: monospace;
  font-size: 32px;
  font-weight: 600;
  text-align: center;
  margin: 24px 0;
}
.device-form {
  display: grid;
  gap: 12px;
}