/* ================================================
   Form Success Overlay — Full-screen confirmation
   Shows after successful form submission
   ================================================ */
.form-success-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 9999;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  backdrop-filter: blur(4px);
  animation: fadeInOverlay 0.3s ease;
}

@keyframes fadeInOverlay {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.form-success-card {
  background: #fff;
  border-radius: 20px;
  padding: 2.5rem 2rem;
  max-width: 480px;
  width: 100%;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  animation: slideUpSuccess 0.4s ease;
}

@keyframes slideUpSuccess {
  from {
    transform: translateY(40px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.form-success-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
  display: block;
}

.form-success-title {
  font-size: 1.6rem;
  font-weight: 800;
  color: #2c3e50;
  margin-bottom: 0.75rem;
}

.form-success-message {
  font-size: 1.05rem;
  color: #555;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.form-success-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
}

.form-success-btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 25px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}

.form-success-btn.primary {
  background: linear-gradient(135deg, #25d366, #128c7e);
  color: #fff;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.3);
}

.form-success-btn.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(37, 211, 102, 0.4);
}

.form-success-btn.secondary {
  background: transparent;
  color: #4a90e2;
  border: 2px solid #4a90e2;
}

.form-success-btn.secondary:hover {
  background: #4a90e2;
  color: #fff;
}

.form-success-close {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: #999;
  cursor: pointer;
  background: none;
  border: none;
  text-decoration: underline;
}

.form-success-close:hover {
  color: #666;
}