/* ─── Beta Signup Section ─── */
.beta-signup {
  background: var(--gradient-hero);
  color: var(--color-white);
  padding: var(--space-10) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.beta-signup::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
  pointer-events: none;
}

.beta-signup h2 {
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.beta-signup .overline {
  color: rgba(255, 255, 255, 0.8);
}

.beta-signup .subtitle {
  color: rgba(255, 255, 255, 0.9);
  margin: 0 auto var(--space-8);
  font-size: 1.15rem;
}

/* ─── Form Layout ─── */
.beta-signup__form {
  max-width: 640px;
  margin: 0 auto;
}

.beta-signup__fields {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

@media (min-width: 768px) {
  .beta-signup__fields {
    flex-direction: row;
    gap: var(--space-3);
  }

  .beta-signup__field {
    flex: 1;
  }

  .beta-signup__btn {
    flex-shrink: 0;
  }
}

/* ─── Inputs ─── */
.beta-signup__input {
  width: 100%;
  padding: 14px var(--space-5);
  background: rgba(255, 255, 255, 0.15);
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-pill);
  color: var(--color-white);
  font-size: 1rem;
  line-height: 1;
  min-height: 56px;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.beta-signup__input::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.beta-signup__input:focus {
  outline: none;
  background: rgba(255, 255, 255, 0.2);
  border-color: var(--color-white);
}

/* Error state */
.beta-signup__input--error {
  border-color: #FF4B4B;
  background: rgba(255, 75, 75, 0.15);
}

.beta-signup__input--error:focus {
  border-color: #FF4B4B;
  background: rgba(255, 75, 75, 0.2);
}

/* ─── Device Toggle ─── */
.beta-signup__device {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-5);
}

.beta-signup__device-label {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
}

.beta-signup__device-options {
  display: flex;
  gap: 0;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-pill);
  border: 2px solid rgba(255, 255, 255, 0.3);
  overflow: hidden;
}

.beta-signup__device-option {
  cursor: pointer;
  user-select: none;
}

.beta-signup__device-option span {
  display: block;
  padding: 10px 28px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.7);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.beta-signup__device-option:hover span {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
}

.beta-signup__device-option input:checked + span {
  background: var(--color-white);
  color: var(--color-gray-900, #1a1a2e);
}

/* ─── Submit Button ─── */
.beta-signup__btn {
  width: 100%;
  margin-top: var(--space-4);
}

@media (min-width: 768px) {
  .beta-signup__btn {
    width: auto;
  }
}

.beta-signup__btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.beta-signup__btn:disabled:hover {
  transform: none;
  box-shadow: none;
}

/* ─── Hint Text ─── */
.beta-signup__hint {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.6);
  margin-top: var(--space-3);
  margin-bottom: 0;
}

/* ─── Messages ─── */
.beta-signup__message {
  max-width: 640px;
  margin: var(--space-6) auto 0;
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-align: left;
}

.beta-signup__message[hidden] {
  display: none;
}

.beta-signup__message p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.5;
}

.beta-signup__message svg {
  flex-shrink: 0;
}

.beta-signup__message--success {
  background: rgba(88, 204, 2, 0.2);
  border: 1px solid rgba(88, 204, 2, 0.4);
  color: var(--color-white);
}

.beta-signup__message--error {
  background: rgba(255, 75, 75, 0.2);
  border: 1px solid rgba(255, 75, 75, 0.4);
  color: var(--color-white);
}

/* ─── Screen Reader Only ─── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}