#submit-btn.loading {
  pointer-events: none;
  opacity: 0.6;
  position: relative;
}

#submit-btn.loading::after {
  content: "";
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  border: 2px solid #fff;
  border-top: 2px solid #444;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  0% {
    transform: translateY(-50%) rotate(0deg);
  }

  100% {
    transform: translateY(-50%) rotate(360deg);
  }
}


/* Grid layout para os planos */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
    padding: 0 1rem;
}

/* Estilo base dos cards */
.pricing-grid .card {
    background: #fff;
    color: #333;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    position: relative;
    transition: transform 0.3s ease;
}

.pricing-grid .card:hover {
    transform: translateY(-5px);
}

.pricing-grid .card h3 {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
}

.pricing-grid .card .price {
    font-size: 2rem;
    margin: 1rem 0;
    font-weight: bold;
}

.pricing-grid .card .price span {
    font-size: 1rem;
    color: #777;
}

.button-primary,
.button-secondary {
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    text-decoration: none;
    margin-top: 1rem;
    display: inline-block;
}

.button-primary {
    background-color: #007BFF;
    color: #fff;
}

.button-secondary {
    background-color: #444;
    color: #fff;
}

/* Destaque visual para planos */
.card.destaque {
    border: 2px solid #007BFF;
}

.card.free {
    border: 2px dashed #007BFF;
}

/* Selo promocional */
.badge {
    position: absolute;
    top: -10px;
    right: -10px;
    background-color: #FF5733;
    color: white;
    padding: 5px 10px;
    font-size: 0.75rem;
    font-weight: bold;
    border-radius: 5px;
}