/* Button base */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  text-align: center;
  cursor: pointer;
  border: none;
}

/* Button variants */
.btn-primary {
  background: var(--color-clay);
  color: var(--color-white);
  padding: 0.75rem 1.5rem;
  border-radius: 9999px;
  font-size: 0.75rem;
}

@media (min-width: 768px) {
  .btn-primary {
    padding: 1rem 2rem;
    font-size: 0.875rem;
  }
}

.btn-primary:hover {
  background: var(--color-noir);
  color: var(--color-dark);
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--color-clay);
  color: var(--color-clay);
  padding: 0.75rem 1.5rem;
  border-radius: 9999px;
  font-size: 0.75rem;
}

@media (min-width: 768px) {
  .btn-secondary {
    padding: 1rem 2rem;
    font-size: 0.875rem;
  }
}

.btn-secondary:hover {
  background: var(--color-clay);
  color: var(--color-white);
}

.btn-whatsapp {
  background: var(--color-green);
  color: var(--color-white);
  border-radius: 9999px;
}

.btn-whatsapp:hover {
  background: #16A34A;
}

/* Floating WhatsApp button */
.floating-whatsapp {
  position: fixed;
  bottom: 5rem;
  right: 1rem;
  width: 3rem;
  height: 3rem;
  background: var(--color-green);
  color: var(--color-white);
  border-radius: 9999px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-fast);
  z-index: var(--z-medium);
  animation: float 6s ease-in-out infinite;
}

@media (min-width: 768px) {
  .floating-whatsapp {
    bottom: 3rem;
    right: 1.5rem;
    width: 3.5rem;
    height: 3.5rem;
  }
}

.floating-whatsapp:hover {
  background: #16A34A;
  transform: scale(1.05);
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}