body { font-family: -apple-system, "Segoe UI", Roboto, sans-serif; }
.card { border: 1px solid #e5e7eb; }
.otp-input { letter-spacing: 0.5em; text-align: center; font-size: 1.4rem; }

.otp-boxes { display: flex; gap: 0.5rem; justify-content: center; }
.otp-box {
    width: 3rem;
    height: 3.5rem;
    text-align: center;
    font-size: 1.5rem;
    padding: 0;
}