/* OTP Input Component
   Segmented 6-digit input for two-factor authentication codes.
   Uses design tokens from styleguide/colors.css.

   IMPORTANT: Do NOT use flex `gap` here. On some Chromium/Windows configurations,
   `gap` causes sub-pixel relayout on focus changes, making digits visibly shake
   when navigating between them. Margins on the digits are stable instead. */

.otp-input {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 360px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
}

.otp-input__digit {
  flex: 0 0 48px;
  width: 48px;
  height: 48px;
  box-sizing: border-box;
  margin: 0 4px;
  padding: 0;
  text-align: center;
  line-height: 1;
  font-size: var(--text-lg);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: var(--color-navy);
  background: var(--color-white);
  border: 1px solid var(--color-grey-dark);
  border-radius: var(--radius-sm);
  caret-color: var(--color-green);
  vertical-align: middle;
}

/* 3+3 visual grouping: extra space after the third digit */
.otp-input__digit--group-end {
  margin-right: 12px;
}

.otp-input__digit:focus,
.otp-input__digit:focus-visible {
  border-color: var(--color-green);
  box-shadow: inset 0 0 0 1px var(--color-green);
  caret-color: var(--color-green);
  /* Suppress the global :focus-visible outline (app.css):
     the green border + inset shadow already provide a clear, non-shifting focus indicator. */
  outline: none;
}

.otp-input__digit--filled {
  border-color: var(--color-navy);
}

.otp-input--error .otp-input__digit {
  border-color: var(--color-red);
}

/* Hidden sync input - removed from layout entirely */
.otp-input__hidden {
  display: none;
}

/* Big variant for login/auth pages */
.otp-input--big {
  max-width: 420px;
}

.otp-input--big .otp-input__digit {
  flex: 0 0 56px;
  width: 56px;
  height: 56px;
  margin: 0 5px;
}

.otp-input--big .otp-input__digit--group-end {
  margin-right: 14px;
}

/* Error message slot */
.otp-input__error-message {
  display: block;
  margin-top: 8px;
  color: var(--color-red);
  font-size: var(--text-sm);
  text-align: center;
}

/* Responsive: tighten on small screens */
@media (max-width: 576px) {
  .otp-input {
    max-width: 100%;
  }

  .otp-input__digit {
    flex: 0 0 40px;
    width: 40px;
    height: 40px;
    margin: 0 3px;
    font-size: var(--text-md);
  }

  .otp-input__digit--group-end {
    margin-right: 10px;
  }

  .otp-input--big .otp-input__digit {
    flex: 0 0 44px;
    width: 44px;
    height: 44px;
    margin: 0 3px;
  }

  .otp-input--big .otp-input__digit--group-end {
    margin-right: 10px;
  }
}