Input OTP

Recipe CSS

This is the exact CSS your kit ships for Input OTP — token-driven, so it re-themes with every knob. Get it (and the rest) from the configurator's Use kit panel.

/* === Input OTP ===
   Single-character boxes for one-time codes (2FA, email verification).
   Each slot is its own input — focus jumps to the next on type. Visual
   pattern: monospace + generous height so digits read clearly. */
.otp {
  display: inline-flex;
  /* Wrap the slot row instead of overflowing on a narrow viewport (6 × ~40px
     slots + gaps exceed a 320px phone). */
  flex-wrap: wrap;
  gap: var(--k-s-6);
}
.otp__slot {
  width: var(--k-in-h-default);
  height: var(--k-control-h-lg);
  text-align: center;
  font-size: var(--k-type-body);
  font-family: var(--k-font-mono);
  font-weight: var(--k-weight-semibold);
  border: max(1.5px, var(--k-bw)) solid var(--k-input-border);
  background: var(--k-field-bg);
  color: var(--k-fg);
  border-radius: var(--k-radius-md);
  padding: 0;
  transition: border-color var(--k-dur-fast, 120ms) var(--k-ease, ease);
}
.otp__slot:focus {
  outline: 2px solid transparent;
  outline-offset: 2px;
  border-color: var(--k-ring);
  box-shadow: 0 0 0 var(--k-ring-w) var(--k-ring-halo);
}
/* Error state — a wrong/expired code reads as danger, like every other field.
 * Set aria-invalid="true" on each slot (attribute, not a BEM modifier). */
.otp__slot[aria-invalid="true"] { border-color: var(--k-input-error-border); }
.otp__sep {
  align-self: center;
  color: var(--k-fg-faint);
  font-size: var(--k-type-h3);
  margin: 0 var(--k-s-2);
}