.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 32px;
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--weight-medium);
  line-height: 1;
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn--primary {
  background-color: var(--color-whatsapp);
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.3);
}

.btn--primary:hover {
  background-color: var(--color-whatsapp-dark);
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4);
  transform: translateY(-2px);
}

.btn--outline {
  border: 2px solid var(--color-white);
  color: var(--color-white);
  background: transparent;
}

.btn--outline:hover {
  background-color: var(--color-white);
  color: var(--color-black);
  transform: translateY(-2px);
}

.btn--gold {
  background-color: var(--color-gold);
  color: var(--color-white);
}

.btn--gold:hover {
  background-color: var(--color-gold-light);
  transform: translateY(-2px);
}

.btn--whatsapp {
  background-color: var(--color-whatsapp);
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.3);
}

.btn--whatsapp:hover {
  background-color: var(--color-whatsapp-dark);
  box-shadow: 0 8px 32px rgba(37, 211, 102, 0.5);
  transform: translateY(-2px);
}

.btn--large {
  padding: 20px 48px;
  font-size: var(--text-lg);
  border-radius: var(--radius-md);
}

.btn--whatsapp-icon::before {
  content: '';
  width: 20px;
  height: 20px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M17.472 14.382c-.297-.149-1.758-.867-2.03-.967-.273-.099-.471-.148-.67.15-.197.297-.767.966-.94 1.164-.173.199-.347.223-.644.075-.297-.15-1.255-.463-2.39-1.475-.883-.788-1.48-1.761-1.653-2.059-.173-.297-.018-.458.13-.606.134-.133.298-.347.446-.52.149-.174.198-.298.298-.497.099-.198.05-.371-.025-.52-.075-.149-.669-1.612-.916-2.207-.242-.579-.487-.5-.669-.51-.173-.008-.371-.01-.57-.01-.198 0-.52.074-.792.372-.272.297-1.04 1.016-1.04 2.479 0 1.462 1.065 2.875 1.213 3.074.149.198 2.096 3.2 5.077 4.487.709.306 1.262.489 1.694.625.712.227 1.36.195 1.871.118.571-.085 1.758-.719 2.006-1.413.248-.694.248-1.289.173-1.413-.074-.124-.272-.198-.57-.347m-5.421 7.403h-.004a9.87 9.87 0 01-5.031-1.378l-.361-.214-3.741.982.998-3.648-.235-.374a9.86 9.86 0 01-1.51-5.26c.001-5.45 4.436-9.884 9.888-9.884 2.64 0 5.122 1.03 6.988 2.898a9.825 9.825 0 012.893 6.994c-.003 5.45-4.437 9.884-9.885 9.884m8.413-18.297A11.815 11.815 0 0012.05 0C5.495 0 .16 5.335.157 11.892c0 2.096.547 4.142 1.588 5.945L.057 24l6.305-1.654a11.882 11.882 0 005.683 1.448h.005c6.554 0 11.89-5.335 11.893-11.893a11.821 11.821 0 00-3.48-8.413z'/%3E%3C/svg%3E") no-repeat center;
  background-size: contain;
}

.btn--whatsapp-icon-large::before {
  width: 24px;
  height: 24px;
}

.card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-navbar);
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  transition: all var(--transition-base);
}

.navbar--scrolled {
  height: var(--nav-height-scrolled);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(24px) saturate(200%);
  -webkit-backdrop-filter: blur(24px) saturate(200%);
  box-shadow: 0 1px 12px rgba(0, 0, 0, 0.06);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.navbar__logo {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  letter-spacing: -0.02em;
}

.navbar__logo span {
  color: var(--color-gold);
}

.navbar__links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.navbar__link {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-gray-600);
  transition: color var(--transition-fast);
  position: relative;
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-gold);
  transition: width var(--transition-base);
}

.navbar__link:hover {
  color: var(--color-black);
}

.navbar__link:hover::after {
  width: 100%;
}

.navbar__cta {
  padding: 10px 20px;
  font-size: var(--text-sm);
}

.navbar__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.navbar__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-black);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.navbar__toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.navbar__toggle.active span:nth-child(2) {
  opacity: 0;
}

.navbar__toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

@media (max-width: 768px) {
  .navbar__links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--color-gray-200);
  }

  .navbar__links.open {
    display: flex;
  }

  .navbar__toggle {
    display: flex;
  }
}

.fab-whatsapp {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: var(--z-fab);
  width: 60px;
  height: 60px;
  border-radius: var(--radius-full);
  background: var(--color-whatsapp);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  transition: all var(--transition-base);
  cursor: pointer;
}

.fab-whatsapp:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 32px rgba(37, 211, 102, 0.5);
}

.fab-whatsapp__tooltip {
  position: absolute;
  right: 72px;
  background: var(--color-black);
  color: var(--color-white);
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition-base);
}

.fab-whatsapp:hover .fab-whatsapp__tooltip {
  opacity: 1;
}

.fab-whatsapp__icon {
  width: 28px;
  height: 28px;
}