/* Two-factor authentication dialog (built by firebase-totp-mfa.js).
   Selectors are qualified with `dialog.` so page-wide resets such as
   `* { margin: 0 }` in style.css cannot undo the centring.
   Dark tone follows the app palette in style.css; light tone follows the
   API console (navy #17384c, Fraunces headings). */

dialog.stockup-mfa-dialog {
  --mfa-bg: #0d1117;
  --mfa-fg: #e8edf3;
  --mfa-muted: #8b9aad;
  --mfa-border: #243040;
  --mfa-input: #2c3a4d;
  --mfa-ring: #2a7fff;
  --mfa-primary: #e8edf3;
  --mfa-primary-fg: #0d1117;
  --mfa-hover: #161e28;
  --mfa-destructive: #f06b7c;
  --mfa-radius: 8px;
  --mfa-title-font: "IBM Plex Sans", Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mfa-title-size: 18px;
  --mfa-title-weight: 600;

  position: fixed;
  inset: 0;
  box-sizing: border-box;
  width: min(400px, calc(100vw - 32px));
  max-height: calc(100dvh - 32px);
  height: fit-content;
  margin: auto;
  padding: 0;
  overflow: auto;
  border: 1px solid var(--mfa-border);
  border-radius: calc(var(--mfa-radius) + 4px);
  color: var(--mfa-fg);
  background: var(--mfa-bg);
  box-shadow: 0 16px 48px rgba(0, 0, 0, .45);
  font-family: "IBM Plex Sans", Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  z-index: 2147483000;
}

dialog.stockup-mfa-dialog[data-tone="light"] {
  --mfa-bg: #ffffff;
  --mfa-fg: #12232f;
  --mfa-muted: #5b6b74;
  --mfa-border: #dfe3e0;
  --mfa-input: #c9d0cc;
  --mfa-ring: #17384c;
  --mfa-primary: #17384c;
  --mfa-primary-fg: #ffffff;
  --mfa-hover: #f3f4f1;
  --mfa-destructive: #b3261e;
  --mfa-title-font: "Fraunces", Georgia, "Times New Roman", serif;
  --mfa-title-size: 21px;
  --mfa-title-weight: 700;

  box-shadow: 0 16px 40px rgba(18, 35, 47, .14), 0 1px 3px rgba(18, 35, 47, .06);
}

dialog.stockup-mfa-dialog[open] {
  display: block;
  animation: stockup-mfa-in 150ms ease-out;
}

dialog.stockup-mfa-dialog::backdrop {
  background: rgba(0, 0, 0, .6);
  animation: stockup-mfa-fade 150ms ease-out;
}

dialog.stockup-mfa-dialog[data-tone="light"]::backdrop {
  background: rgba(18, 35, 47, .4);
}

dialog.stockup-mfa-dialog *,
dialog.stockup-mfa-dialog *::before,
dialog.stockup-mfa-dialog *::after {
  box-sizing: border-box;
}

dialog.stockup-mfa-dialog .stockup-mfa-dialog__form {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin: 0;
  padding: 24px;
}

/* Header */

dialog.stockup-mfa-dialog .stockup-mfa-dialog__header h2 {
  margin: 0;
  color: var(--mfa-fg);
  font-family: var(--mfa-title-font);
  font-size: var(--mfa-title-size);
  font-weight: var(--mfa-title-weight);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

dialog.stockup-mfa-dialog .stockup-mfa-dialog__header p {
  margin: 6px 0 0;
  color: var(--mfa-muted);
  font-size: 14px;
  line-height: 1.5;
}

/* Code input: two groups of three joined slots */

dialog.stockup-mfa-dialog .stockup-mfa-dialog__code {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

dialog.stockup-mfa-dialog .stockup-mfa-dialog__sr {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

dialog.stockup-mfa-dialog .stockup-mfa-dialog__otp {
  display: flex;
  align-items: center;
  gap: 8px;
}

dialog.stockup-mfa-dialog .stockup-mfa-dialog__group {
  display: flex;
  flex: 1;
}

dialog.stockup-mfa-dialog .stockup-mfa-dialog__slot {
  position: relative;
  flex: 1;
  min-width: 0;
  width: 100%;
  height: 52px;
  margin: 0 0 0 -1px;
  padding: 0;
  border: 1px solid var(--mfa-input);
  border-radius: 0;
  outline: none;
  color: var(--mfa-fg);
  background: transparent;
  caret-color: var(--mfa-ring);
  font-family: "Fira Code", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 20px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  text-align: center;
  appearance: none;
  -webkit-appearance: none;
  box-shadow: none;
  transition: border-color 120ms ease-out, box-shadow 120ms ease-out;
}

dialog.stockup-mfa-dialog .stockup-mfa-dialog__slot:first-child {
  margin-left: 0;
  border-radius: var(--mfa-radius) 0 0 var(--mfa-radius);
}

dialog.stockup-mfa-dialog .stockup-mfa-dialog__slot:last-child {
  border-radius: 0 var(--mfa-radius) var(--mfa-radius) 0;
}

dialog.stockup-mfa-dialog .stockup-mfa-dialog__slot:focus {
  z-index: 1;
  border-color: var(--mfa-ring);
  box-shadow: 0 0 0 1px var(--mfa-ring);
}

dialog.stockup-mfa-dialog .stockup-mfa-dialog__separator {
  flex: none;
  width: 8px;
  height: 1px;
  background: var(--mfa-muted);
}

dialog.stockup-mfa-dialog.is-invalid .stockup-mfa-dialog__slot {
  border-color: var(--mfa-destructive);
}

dialog.stockup-mfa-dialog.is-invalid .stockup-mfa-dialog__slot:focus {
  box-shadow: 0 0 0 1px var(--mfa-destructive);
}

dialog.stockup-mfa-dialog .stockup-mfa-dialog__error {
  margin: 8px 0 0;
  color: var(--mfa-destructive);
  font-size: 13px;
  line-height: 1.4;
}

dialog.stockup-mfa-dialog .stockup-mfa-dialog__error:empty {
  display: none;
}

/* Footer */

dialog.stockup-mfa-dialog .stockup-mfa-dialog__footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin: 4px 0 0;
}

dialog.stockup-mfa-dialog .stockup-mfa-dialog__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  min-width: 88px;
  margin: 0;
  padding: 0 16px;
  border: 1px solid transparent;
  border-radius: var(--mfa-radius);
  cursor: pointer;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  white-space: nowrap;
  touch-action: manipulation;
  transition: background-color 120ms ease-out, opacity 120ms ease-out;
}

dialog.stockup-mfa-dialog .stockup-mfa-dialog__btn--outline {
  border-color: var(--mfa-border);
  color: var(--mfa-fg);
  background: transparent;
}

dialog.stockup-mfa-dialog .stockup-mfa-dialog__btn--outline:hover:not(:disabled) {
  background: var(--mfa-hover);
}

dialog.stockup-mfa-dialog .stockup-mfa-dialog__btn--primary {
  color: var(--mfa-primary-fg);
  background: var(--mfa-primary);
}

dialog.stockup-mfa-dialog .stockup-mfa-dialog__btn--primary:hover:not(:disabled) {
  opacity: .9;
}

dialog.stockup-mfa-dialog .stockup-mfa-dialog__btn:focus-visible {
  outline: 2px solid var(--mfa-ring);
  outline-offset: 2px;
}

dialog.stockup-mfa-dialog .stockup-mfa-dialog__btn:disabled {
  cursor: not-allowed;
  opacity: .5;
}

dialog.stockup-mfa-dialog.is-busy .stockup-mfa-dialog__btn--primary {
  cursor: progress;
  opacity: .8;
}

dialog.stockup-mfa-dialog .stockup-mfa-dialog__slot:disabled {
  opacity: .6;
}

dialog.stockup-mfa-dialog .stockup-mfa-dialog__spinner {
  display: none;
  width: 14px;
  height: 14px;
  border: 1.5px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: stockup-mfa-spin 700ms linear infinite;
}

dialog.stockup-mfa-dialog.is-busy .stockup-mfa-dialog__spinner {
  display: inline-block;
}

@keyframes stockup-mfa-in {
  from { opacity: 0; transform: scale(.96); }
  to { opacity: 1; transform: none; }
}

@keyframes stockup-mfa-fade {
  from { opacity: 0; }
}

@keyframes stockup-mfa-spin {
  to { transform: rotate(360deg); }
}

/* Phones: full-width stacked buttons, primary on top, 44px touch targets. */
@media (max-width: 480px) {
  dialog.stockup-mfa-dialog .stockup-mfa-dialog__form {
    padding: 20px;
  }
  dialog.stockup-mfa-dialog .stockup-mfa-dialog__footer {
    flex-direction: column-reverse;
  }
  dialog.stockup-mfa-dialog .stockup-mfa-dialog__btn {
    width: 100%;
    height: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  dialog.stockup-mfa-dialog[open],
  dialog.stockup-mfa-dialog::backdrop {
    animation: none;
  }
  dialog.stockup-mfa-dialog .stockup-mfa-dialog__spinner {
    animation-duration: 1.6s;
  }
  dialog.stockup-mfa-dialog .stockup-mfa-dialog__slot,
  dialog.stockup-mfa-dialog .stockup-mfa-dialog__btn {
    transition: none;
  }
}