/* Reset e estilos base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --whatsapp-primary: #25D366;
  --whatsapp-light: #34B7F1;
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-400: #9CA3AF;
  --gray-500: #6B7280;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-800: #1F2937;
  --gray-900: #111827;
  --white: #FFFFFF;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  line-height: 1.5;
  color: var(--gray-700);
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

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

.animate-float {
  animation: float 3s ease-in-out infinite;
}

@keyframes slideIn {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.animate-slide-in {
  animation: slideIn 0.6s ease-out forwards;
}

/* Navbar */
.navbar {
  background-color: var(--white);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  position: fixed;
  width: 100%;
  z-index: 50;
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-circle {
  background: var(--whatsapp-primary);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: bold;
  background: linear-gradient(45deg, var(--whatsapp-primary), var(--whatsapp-light));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.nav-links {
  display: none;
}

@media (min-width: 768px) {
  .nav-links {
    display: flex;
    gap: 2rem;
  }

  .nav-links a {
    color: var(--gray-700);
    text-decoration: none;
    transition: color 0.3s ease;
  }

  .nav-links a:hover {
    color: var(--whatsapp-primary);
  }
}

/* Botões */
.btn-primary {
  background-color: var(--whatsapp-primary);
  color: var(--white);
  padding: 0.5rem 1rem;
  border-radius: 0.375rem;
  border: none;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.btn-primary:hover {
  background-color: var(--whatsapp-light);
}

.btn-hero {
  background-color: var(--white);
  color: var(--whatsapp-primary);
  padding: 1.5rem 2rem;
  border-radius: 9999px;
  border: none;
  cursor: pointer;
  font-size: 1.125rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-hero:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 8px rgba(0, 0, 0, 0.15);
}

/* Hero Section */
.hero {
  background: linear-gradient(to right, var(--whatsapp-primary), var(--whatsapp-light));
  padding: 8rem 0 4rem;
}

.hero-grid {
  display: grid;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.hero-content {
  text-align: left;
  color: var(--white);
}

.hero-content h1 {
  font-size: 2.25rem;
  font-weight: bold;
  margin-bottom: 1.5rem;
  background: linear-gradient(to right, var(--white), var(--gray-200));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

@media (min-width: 768px) {
  .hero-content h1 {
    font-size: 3.75rem;
  }
}

.hero-content p {
  font-size: 1.125rem;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .hero-content p {
    font-size: 1.5rem;
  }
}

.hero-image img {
  width: 80%;
  border-radius: 2rem;
  margin-left: auto;
  margin-right: auto;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

/* Features Section */
.features {
  padding: 5rem 0;
  background-color: var(--white);
}

.features h2 {
  text-align: center;
  font-size: 2.25rem;
  font-weight: bold;
  color: var(--gray-800);
  margin-bottom: 3rem;
}

.features-grid {
  display: grid;
  gap: 3rem;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.feature-card {
  padding: 2rem;
  background-color: var(--white);
  border-radius: 0.5rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
}

.feature-icon {
  background-color: var(--whatsapp-primary);
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
}

.feature-card h3 {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--gray-800);
  margin-bottom: 1rem;
}

.feature-card p {
  color: var(--gray-600);
}

/* Demo Section */
.demo {
  padding: 5rem 0;
  background-color: var(--white);
}

.demo h2 {
  text-align: center;
  font-size: 2.25rem;
  font-weight: bold;
  color: var(--gray-800);
  margin-bottom: 4rem;
}

.demo-grid {
  display: grid;
  gap: 3rem;
}

@media (min-width: 768px) {
  .demo-grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

.demo-features {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.demo-feature {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.demo-icon {
  background-color: var(--whatsapp-primary);
  padding: 0.5rem;
  border-radius: 50%;
  flex-shrink: 0;
}

.demo-feature h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 0.5rem;
}

.demo-feature p {
  color: var(--gray-600);
}

.demo-image {
  position: relative;
}

.demo-image img {
  width: 100%;
  border-radius: 0.5rem;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.demo-badge {
  position: absolute;
  bottom: -1.5rem;
  right: -1.5rem;
  background-color: var(--whatsapp-primary);
  color: var(--white);
  padding: 1rem;
  border-radius: 0.5rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* Testimonials Section */
.testimonials {
  padding: 5rem 0;
  background-color: var(--gray-50);
}

.testimonials h2 {
  text-align: center;
  font-size: 2.25rem;
  font-weight: bold;
  color: var(--gray-800);
  margin-bottom: 4rem;
}

.testimonials-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.testimonial-card {
  background-color: var(--white);
  padding: 1.5rem;
  border-radius: 0.5rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.testimonial-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.testimonial-header img {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  object-fit: cover;
}

.testimonial-header h4 {
  font-weight: 600;
  color: var(--gray-800);
}

.testimonial-header p {
  color: var(--gray-600);
  font-size: 0. .875rem;
}

/* Pricing Section */
.pricing {
  padding: 4rem 0;
  background-color: var(--white);
}

.pricing h2 {
  text-align: center;
  font-size: 1.875rem;
  font-weight: bold;
  color: var(--gray-800);
  margin-bottom: 3rem;
}

.pricing-grid {
  display: grid;
  gap: 2rem;
  max-width: 72rem;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .pricing-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.pricing-card {
  background-color: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 0.5rem;
  padding: 2rem;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: box-shadow 0.3s ease;
}

.pricing-card:hover {
  box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
}

.pricing-card.popular {
  border-color: var(--whatsapp-primary);
}

.popular-badge {
  position: absolute;
  top: 0;
  right: 0;
  background-color: var(--whatsapp-primary);
  color: var(--white);
  padding: 0.25rem 1rem;
  border-bottom-left-radius: 0.5rem;
  border-top-right-radius: 0.5rem;
  font-size: 0.875rem;
}

.pricing-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.toggle-slider {
  width: 4rem;
}

.toggle-slider input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  background: linear-gradient(to right, var(--whatsapp-primary), var(--whatsapp-light));
  border-radius: 10px;
  outline: none;
  transition: background 0.3s ease;
}

.toggle-slider input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--whatsapp-primary);
  cursor: pointer;
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.2);
  transition: background 0.3s ease;
}

.toggle-slider input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--whatsapp-primary);
  cursor: pointer;
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.2);
  transition: background 0.3s ease;
}

.price {
  font-size: 2.25rem;
  font-weight: bold;
  color: var(--whatsapp-primary);
  margin-bottom: 1.5rem;
}

.price span {
  font-size: 1.125rem;
  color: var(--gray-600);
}

.features-list {
  list-style: none;
  margin-bottom: 2rem;
}

.features-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  color: var(--gray-700);
}

.features-list li::before {
  content: "";
  display: inline-block;
  width: 1.25rem;
  height: 1.25rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2325D366' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M22 11.08V12a10 10 0 1 1-5.93-9.14'/%3E%3Cpolyline points='22 4 12 14.01 9 11.01'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
}

/* FAQ Section */
.faq {
  padding: 5rem 0;
  background-color: var(--gray-50);
}

.faq h2 {
  text-align: center;
  font-size: 2.25rem;
  font-weight: bold;
  color: var(--gray-800);
  margin-bottom: 4rem;
}

.faq-grid {
  max-width: 48rem;
  margin: 0 auto;
  display: grid;
  gap: 1.5rem;
}

.faq-card {
  background-color: var(--white);
  padding: 1.5rem;
  border-radius: 0.5rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.faq-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 0.5rem;
}

.faq-card p {
  color: var(--gray-600);
}

/* Footer */
.footer {
  background-color: var(--gray-900);
  color: var(--white);
  padding: 3rem 0;
}

.footer-grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.footer-brand {
  margin-bottom: 1rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.footer-logo span {
  font-size: 1.25rem;
  font-weight: bold;
}

.footer h4 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.footer ul {
  list-style: none;
}

.footer ul li {
  margin-bottom: 0.5rem;
}

.footer a {
  color: var(--gray-400);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer a:hover {
  color: var(--white);
}

.footer-bottom {
  border-top: 1px solid var(--gray-800);
  margin-top: 2rem;
  padding-top: 2rem;
  text-align: center;
  color: var(--gray-400);
}