.otp-modal {
  display: none;
  position: fixed !important;
  inset: 0 !important;
  z-index: 1000 !important;
  padding: 16px; /* safe space at edges on small screens */
  backdrop-filter: blur(2px);
  animation: otp-fade-in 0.25s ease-out;
}

.otp-modal.show {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
}

.otp-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  transition: opacity 0.25s ease;
}

.otp-dialog {
  position: relative;
  width: 100%;
  max-width: 480px;
  background: var(--white, #ffffff);
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.18), 0 6px 18px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  transform: translateY(10px);
  animation: otp-slide-up 0.25s ease-out;
  border: 1px solid rgba(0, 0, 0, 0.04);
}

.otp-header {
  padding: 20px 24px 14px;
  background: linear-gradient(135deg, var(--primary-color, #4a90e2) 0%, var(--primary-dark, #2c5fba) 100%);
  color: #fff;
  text-align: center;
}

.otp-header h3 {
  margin: 0;
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.otp-body {
  padding: 22px 24px;
}

.otp-body p {
  margin: 0 0 10px;
  color: var(--text-light, #777);
  font-size: 14px;
  text-align: center;
}

.otp-email {
  font-weight: 600;
  color: var(--text-dark, #333);
  margin-bottom: 16px;
  padding: 10px 14px;
  background: #f8fafc;
  border-radius: 10px;
  border-left: 4px solid var(--primary-color, #4a90e2);
  word-break: break-all;
  font-size: 14px;
  text-align: center;
}

.otp-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: 14px;
}

.otp-code-input {
  width: 100%;
  padding: 14px;
  border: 1px solid var(--border-color, #ddd);
  border-radius: 10px;
  font-size: 18px;
  text-align: center;
  letter-spacing: 0.2em;
  font-weight: 600;
  transition: all 0.2s ease;
  background: #ffffff;
  outline: none;
}

.otp-code-input:focus {
  border-color: var(--primary-color, #4a90e2);
  box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.12);
}

.otp-code-input::placeholder {
  color: #94a3b8;
  font-weight: 400;
  letter-spacing: normal;
}

.otp-button-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* Buttons styled to match app theme */
.otp-dialog .btn {
  padding: 12px 16px;
  border: none;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.otp-dialog .btn:disabled { opacity: 0.55; cursor: not-allowed; }
.otp-dialog .btn:not(:disabled):hover { transform: translateY(-1px); }

/* Use global .btn-secondary (orange) from login_style.css by not overriding it here */

.otp-dialog .btn-success {
  background: var(--success-color, #28a745);
  color: #fff;
  box-shadow: 0 6px 16px rgba(40, 167, 69, 0.25);
}
.otp-dialog .btn-success:not(:disabled):hover { background: #218838; box-shadow: 0 8px 20px rgba(33, 136, 56, 0.35); }

.otp-status {
  font-size: 13px;
  color: #64748b;
  min-height: 20px;
  text-align: center;
  padding: 8px 12px;
  border-radius: 8px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
}

.otp-status.success { color: #059669; background: #ecfdf5; border-color: #a7f3d0; }
.otp-status.error   { color: #dc2626; background: #fef2f2; border-color: #fecaca; }
.otp-status.loading { color: #0891b2; background: #f0f9ff; border-color: #bae6fd; }

.otp-footer { padding: 14px 24px 22px; text-align: center; }

/* Animations */
@keyframes otp-fade-in { from { opacity: 0 } to { opacity: 1 } }
@keyframes otp-slide-up { from { opacity: 0; transform: translateY(18px) } to { opacity: 1; transform: translateY(0) } }

/* Responsive */
@media (max-width: 480px) {
  .otp-dialog { max-width: 520px; width: 100%; }
  .otp-button-group { grid-template-columns: 1fr; }
}