.otp-button {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.11);
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  font-size: 0.94rem;
  font-weight: 780;
  letter-spacing: 0.08em;
  padding: 14px 24px;
  text-transform: uppercase;
  backdrop-filter: blur(18px);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.28);
}

.otp-button:hover {
  background: rgba(255, 255, 255, 0.17);
}

.otp-panel {
  position: fixed;
  left: 50%;
  top: 50%;
  z-index: 5;
  width: min(430px, calc(100vw - 32px));
  transform: translate(-50%, -50%);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 18px;
  background: rgba(9, 13, 24, 0.86);
  padding: 24px;
  text-align: center;
  backdrop-filter: blur(24px);
  box-shadow: 0 30px 110px rgba(0, 0, 0, 0.6);
}

.otp-panel[hidden] {
  display: none;
}

.otp-close {
  position: absolute;
  right: 12px;
  top: 10px;
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 1.6rem;
  line-height: 1;
}

.otp-title {
  margin: 0 0 16px;
  color: var(--ink);
  font-size: 1.1rem;
  font-weight: 760;
}

.otp-panel img {
  width: min(100%, 360px);
  height: auto;
  border-radius: 10px;
  background: #fff;
  padding: 12px;
}

.otp-help {
  margin: 16px auto 0;
  max-width: 32ch;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.5;
}