:root {
  --login-primary: #ffd400;
  --login-white: #ffffff;
  --login-text: #242424;
  --login-muted: #777777;
  --login-border: #e8e8e8;
  --login-soft: #fff9e6;
}

/* Keep the page readable while the modal is open. */
.phone-login-modal + .modal-backdrop,
.modal-backdrop.show {
  background-color: rgba(36, 36, 36, 0.52);
  opacity: 1;
}

.phone-login-modal .modal-dialog {
  width: calc(100% - 2rem);
  max-width: 440px;
  margin: 1rem auto;
}

.phone-login-modal .modal-content {
  width: 100%;
  max-height: calc(100dvh - 2rem);
  overflow: hidden;
  border: 0;
  border-top: 5px solid var(--login-primary);
  border-radius: 14px;
  background: var(--login-white);
  box-shadow: 0 20px 55px rgba(0, 0, 0, 0.22);
}

.phone-login-modal .modal-header {
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--login-border);
  padding: 22px 24px 18px;
  background: var(--login-white);
}

.phone-login-modal .modal-title {
  flex: 1;
  color: var(--login-text);
  font-size: clamp(1.2rem, 3vw, 1.45rem);
  font-weight: 700;
  text-align: center;
}

.phone-login-modal .btn-close {
  flex: 0 0 auto;
  width: 1.25rem;
  height: 1.25rem;
  margin-left: 10px;
  opacity: 0.7;
}

.phone-login-modal .btn-close:hover {
  opacity: 1;
}

.phone-login-modal .modal-body {
  overflow-y: auto;
  padding: 24px;
  background: var(--login-white);
}

.phone-login-modal .text-muted,
.phone-login-modal small {
  color: var(--login-muted) !important;
}

.login-step {
  display: none;
}

.login-step.active {
  display: block;
  animation: loginStepIn 0.25s ease-out;
}

@keyframes loginStepIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.phone-input-group,
.otp-input-group,
.user-info-group {
  margin-bottom: 20px;
}

.phone-input-group label,
.otp-input-group label,
.user-info-group label {
  display: block;
  margin-bottom: 9px;
  color: var(--login-text);
  font-size: 0.94rem;
  font-weight: 600;
}

.phone-input-group .input-group {
  display: flex;
  gap: 8px;
}

.phone-login-modal .country-code,
.phone-login-modal .form-control {
  min-height: 48px;
  border: 1px solid var(--login-border);
  border-radius: 8px;
  background: var(--login-white);
  color: var(--login-text);
}

.phone-login-modal .country-code {
  display: grid;
  min-width: 68px;
  padding: 10px 12px;
  border-color: var(--login-primary);
  place-items: center;
  font-weight: 600;
}

.phone-login-modal .form-control {
  padding: 12px 14px;
  font-size: 1rem;
}

.phone-login-modal .form-control:focus,
.phone-login-modal .otp-input:focus {
  border-color: var(--login-primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(255, 212, 0, 0.2);
}

.phone-login-modal .form-control::placeholder {
  color: var(--login-muted);
}

.otp-inputs {
  display: flex;
  justify-content: center;
  gap: clamp(5px, 2vw, 10px);
  margin: 20px 0 15px;
}

.otp-inputs .otp-input {
  width: clamp(38px, 12vw, 52px);
  height: clamp(42px, 12vw, 52px);
  border: 1px solid var(--login-border);
  border-bottom: 3px solid var(--login-primary);
  border-radius: 8px;
  background: var(--login-white);
  color: var(--login-text);
  font-size: clamp(1rem, 4vw, 1.35rem);
  font-weight: 600;
  text-align: center;
}

.otp-inputs .otp-input::-webkit-outer-spin-button,
.otp-inputs .otp-input::-webkit-inner-spin-button {
  margin: 0;
  -webkit-appearance: none;
}

.otp-inputs .otp-input[type="number"] {
  -moz-appearance: textfield;
}

.otp-timer {
  color: var(--login-muted);
  font-size: 0.85rem;
  text-align: center;
}

.otp-timer .timer-text {
  color: var(--login-primary);
  font-weight: 700;
}

.resend-otp {
  margin-top: 12px;
  text-align: center;
}

.resend-otp button {
  padding: 0;
  border: 0;
  background: none;
  color: var(--login-text);
  font-weight: 600;
  text-decoration: underline;
}

.resend-otp button:disabled {
  cursor: not-allowed;
  color: var(--login-muted);
  text-decoration: none;
}

.phone-login-modal .modal-footer {
  border-top: 1px solid var(--login-border);
  padding: 18px 24px 24px;
  background: var(--login-white);
}

.button-group {
  display: flex;
  gap: 10px;
}

.btn-primary-custom,
.btn-secondary-custom {
  flex: 1;
  min-height: 46px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: transform 0.2s ease, background-color 0.2s ease;
}

.btn-primary-custom {
  border: 2px solid var(--login-primary);
  background: var(--login-primary);
  color: var(--login-text);
}

.btn-primary-custom:hover:not(:disabled) {
  background: var(--login-white);
  color: var(--login-text);
  transform: translateY(-1px);
}

.btn-secondary-custom {
  border: 1px solid var(--login-border);
  background: var(--login-white);
  color: var(--login-text);
}

.btn-secondary-custom:hover {
  border-color: var(--login-primary);
  background: var(--login-soft);
}

.btn-primary-custom:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.alert-message {
  display: none;
  margin-bottom: 15px;
  padding: 11px 13px;
  border-left: 4px solid var(--login-primary);
  border-radius: 7px;
  background: var(--login-soft);
  color: var(--login-text);
  font-size: 0.9rem;
}

.alert-message.show {
  display: block;
  animation: loginStepIn 0.25s ease-out;
}

.spinner-border-sm {
  width: 1rem;
  height: 1rem;
  margin-right: 0.5rem;
  border-width: 0.2em;
}

@media (max-width: 576px) {
  .phone-login-modal .modal-dialog {
    width: calc(100% - 1rem);
    min-height: calc(100% - 1rem);
    margin: 0.5rem auto;
  }

  .phone-login-modal .modal-content {
    max-height: calc(100dvh - 1rem);
    border-radius: 11px;
  }

  .phone-login-modal .modal-header,
  .phone-login-modal .modal-body,
  .phone-login-modal .modal-footer {
    padding-right: 16px;
    padding-left: 16px;
  }

  .phone-login-modal .modal-header {
    padding-top: 18px;
    padding-bottom: 16px;
  }

  .phone-login-modal .modal-body {
    padding-top: 20px;
    padding-bottom: 20px;
  }

  .phone-input-group .input-group {
    align-items: stretch;
  }

  .phone-login-modal .modal-footer {
    padding-top: 14px;
    padding-bottom: 18px;
  }
}

@media (max-width: 360px) {
  .phone-login-modal .modal-header,
  .phone-login-modal .modal-body,
  .phone-login-modal .modal-footer {
    padding-right: 12px;
    padding-left: 12px;
  }

  .button-group {
    gap: 6px;
  }

  .btn-primary-custom,
  .btn-secondary-custom {
    padding-right: 8px;
    padding-left: 8px;
    font-size: 0.88rem;
  }
}