/* Signup Modal Styles - responsive and accessible */
.signup-modal[hidden] { display: none; }

.signup-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
}

.signup-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.4);
  opacity: 0;
  transition: opacity 200ms ease;
}

.signup-modal.open .signup-modal__backdrop { opacity: 1; }

.signup-modal__dialog {
  position: relative;
  width: 100%;
  max-width: 640px;
  margin: 10vh auto;
  padding: clamp(16px, 3vw, 24px);
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
  transform: translateY(10px);
  opacity: 0;
  transition: transform 220ms ease, opacity 220ms ease;
}

.signup-modal.open .signup-modal__dialog {
  transform: translateY(0);
  opacity: 1;
}

.signup-modal__close {
  position: absolute;
  top: 12px;
  right: 12px;
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 20px;
}

.signup-modal__content {
  display: flex;
  gap: 16px;
  margin-top: 12px;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  color: inherit;
  text-decoration: none;
}

.contact-link:hover { background: #f7f7f7; }

@media (max-width: 480px) {
  .signup-modal__dialog { margin: 5vh auto; }
  .signup-modal__content { flex-direction: column; }
}