/* Reset e variáveis CSS */
:root {
  --primary: #6E44FF;
  --primary-dark: #5A36D6;
  --secondary: #1E1B4B;
  --accent: #22D3EE;
  --text: #1F2937;
  --text-light: #6B7280;
  --background: #FFFFFF;
  --background-alt: #F8FAFC;
  --border: #E5E7EB;
  --radius: 12px;
  --radius-lg: 18px;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Tipografia */
  --font-primary: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--background);
}

/* Utilitários */
.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.hidden {
  display: none !important;
}

/* Botões */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
  line-height: 1;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: var(--shadow);
}

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

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

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

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-text {
  background: transparent;
  color: var(--text);
  padding: 8px 16px;
}

.btn-text:hover {
  color: var(--primary);
}

.btn-large {
  padding: 16px 32px;
  font-size: 16px;
}

.btn-full {
  width: 100%;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  padding: 16px 0;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo img {
  height: 32px;
  width: auto;
}

.nav {
  display: flex;
  align-items: center;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
}

.hamburger {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  position: relative;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 2px;
  background: var(--text);
  left: 0;
  transition: transform 0.3s ease;
}

.hamburger::before {
  top: -6px;
}

.hamburger::after {
  bottom: -6px;
}

.nav-toggle[aria-expanded="true"] .hamburger {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .hamburger::before {
  transform: rotate(45deg);
  top: 0;
}

.nav-toggle[aria-expanded="true"] .hamburger::after {
  transform: rotate(-45deg);
  bottom: 0;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 32px;
}

.nav-menu a {
  text-decoration: none;
  color: var(--text);
  font-weight: 500;
  transition: color 0.2s;
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Hero */
.hero {
  padding: 160px 0 80px;
  background: linear-gradient(135deg, var(--background-alt) 0%, #FFFFFF 100%);
  position: relative;
  overflow: hidden;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-title {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
  color: var(--secondary);
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 20px;
  color: var(--text-light);
  margin-bottom: 40px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 32px;
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat strong {
  font-size: 24px;
  font-weight: 700;
  color: var(--secondary);
}

.stat span {
  font-size: 14px;
  color: var(--text-light);
}

.hero-media {
  position: relative;
}

.media-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.media-wrapper img {
  width: 100%;
  height: auto;
  display: block;
}

.play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  border: none;
  color: var(--primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.play-btn:hover {
  background: white;
  transform: translate(-50%, -50%) scale(1.1);
}

/* Social Proof */
.social-proof {
  padding: 60px 0;
  background: var(--background-alt);
}

.social-proof-label {
  text-align: center;
  color: var(--text-light);
  margin-bottom: 32px;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 48px;
  flex-wrap: wrap;
}

.logo-item {
  font-weight: 600;
  color: var(--text-light);
  opacity: 0.7;
  transition: opacity 0.2s;
}

.logo-item:hover {
  opacity: 1;
}

/* Logo estilizada */
.logo-text {
  font-size: 24px;
  font-weight: 700;
  color: var(--secondary);
  text-decoration: none;
}

.logo-ai {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* No footer, ajuste a logo para ser menor */
.footer .logo-text {
  font-size: 20px;
}

.footer .logo-ai {
  background: linear-gradient(135deg, #FFFFFF 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Sections comuns */
section {
  padding: 80px 0;
}

.section-title {
  font-size: 36px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 16px;
  color: var(--secondary);
}

.section-subtitle {
  font-size: 18px;
  text-align: center;
  color: var(--text-light);
  margin-bottom: 48px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* How It Works */
.how-it-works {
  background: var(--background);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 60px;
}

.step {
  text-align: center;
  padding: 32px;
  border-radius: var(--radius);
  transition: transform 0.2s;
}

.step:hover {
  transform: translateY(-4px);
}

.step-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  background: var(--background-alt);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--secondary);
}

.step p {
  color: var(--text-light);
  line-height: 1.6;
}

/* Features */
.features {
  background: var(--background-alt);
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.features-content h2 {
  text-align: left;
  margin-bottom: 24px;
}

.features-content > p {
  font-size: 18px;
  color: var(--text-light);
  margin-bottom: 32px;
  line-height: 1.6;
}

.features-list {
  list-style: none;
}

.features-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
  color: var(--text);
}

.features-list svg {
  flex-shrink: 0;
  margin-top: 2px;
}

.features-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.features-media img {
  width: 100%;
  height: auto;
  display: block;
}

/* Testimonials */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-top: 60px;
}

.testimonial {
  background: white;
  padding: 32px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.testimonial.featured {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: white;
  position: relative;
}

.testimonial.featured::before {
  content: '⭐ Destaque';
  position: absolute;
  top: -12px;
  left: 32px;
  background: white;
  color: var(--primary);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

.testimonial.featured .stars {
  color: #FFD700;
}

.testimonial.featured .testimonial-author strong {
  color: white;
}

.testimonial.featured .testimonial-author span {
  color: rgba(255, 255, 255, 0.8);
}

.stars {
  color: #FFD700;
  margin-bottom: 16px;
  font-size: 18px;
}

.testimonial-content p {
  font-style: italic;
  line-height: 1.6;
  margin-bottom: 24px;
}

.testimonial-author {
  display: flex;
  flex-direction: column;
}

.testimonial-author strong {
  font-weight: 600;
  color: var(--secondary);
}

.testimonial-author span {
  color: var(--text-light);
  font-size: 14px;
}

/* Pricing */
.pricing {
  background: var(--background);
}

.pricing-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
}

.toggle {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 32px;
}

.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--border);
  transition: 0.4s;
  border-radius: 34px;
}

.slider:before {
  position: absolute;
  content: '';
  height: 24px;
  width: 24px;
  left: 4px;
  bottom: 4px;
  background: white;
  transition: 0.4s;
  border-radius: 50%;
}

input:checked + .slider {
  background: var(--primary);
}

input:checked + .slider:before {
  transform: translateX(28px);
}

.discount-badge {
  background: var(--accent);
  color: white;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 12px;
}

.pricing-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  max-width: 900px;
  margin: 0 auto;
}

.pricing-card {
  background: white;
  padding: 40px 32px;
  border-radius: var(--radius-lg);
  border: 2px solid var(--border);
  position: relative;
  display: flex;
  flex-direction: column;
}

.pricing-card.popular {
  border-color: var(--primary);
  transform: scale(1.05);
}

.popular-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: white;
  padding: 6px 20px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
}

.pricing-header {
  text-align: center;
  margin-bottom: 32px;
}

.pricing-header h3 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--secondary);
}

.price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 8px;
  margin-bottom: 8px;
}

.amount {
  font-size: 48px;
  font-weight: 700;
  color: var(--secondary);
}

.period {
  font-size: 16px;
  color: var(--text-light);
}

.billing-note {
  font-size: 14px;
  color: var(--text-light);
  text-align: center;
}

.pricing-features {
  list-style: none;
  margin-bottom: 32px;
  flex-grow: 1;
}

.pricing-features li {
  padding: 8px 0;
  color: var(--text);
}

.guarantee {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 14px;
  color: var(--text-light);
}

.guarantee svg {
  color: var(--accent);
}

/* FAQ */
.faq {
  background: var(--background-alt);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-question {
  width: 100%;
  padding: 24px 0;
  background: none;
  border: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-size: 18px;
  font-weight: 600;
  color: var(--secondary);
  text-align: left;
}

.faq-question:hover {
  color: var(--primary);
}

.faq-question:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.faq-icon {
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-question[aria-expanded="true"] .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 0 24px;
  color: var(--text-light);
  line-height: 1.6;
  display: none;
}

.faq-question[aria-expanded="true"] + .faq-answer {
  display: block;
}

/* Final CTA */
.final-cta {
  background: linear-gradient(135deg, var(--secondary) 0%, var(--primary) 100%);
  color: white;
  text-align: center;
  padding: 100px 0;
}

.final-cta h2 {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 24px;
}

.final-cta p {
  font-size: 20px;
  margin-bottom: 40px;
  opacity: 0.9;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.final-cta .btn-primary {
  background: white;
  color: var(--primary);
}

.final-cta .btn-primary:hover {
  background: var(--background-alt);
  transform: translateY(-2px);
}

/* Footer */
.footer {
  background: var(--secondary);
  color: white;
  padding: 60px 0 32px;
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 60px;
  margin-bottom: 48px;
}

.footer-brand p {
  margin: 16px 0 24px;
  opacity: 0.8;
  line-height: 1.6;
}

.social-links {
  display: flex;
  gap: 16px;
}

.social-links a {
  color: white;
  opacity: 0.7;
  transition: opacity 0.2s;
}

.social-links a:hover {
  opacity: 1;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.footer-column h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 20px;
  color: white;
}

.footer-column ul {
  list-style: none;
}

.footer-column li {
  margin-bottom: 12px;
}

.footer-column a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-column a:hover {
  color: white;
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal[aria-hidden="false"] {
  display: flex;
}

.modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background: white;
  border-radius: var(--radius-lg);
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  overflow: auto;
  animation: modalSlideIn 0.3s ease;
}

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

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
  color: var(--text-light);
  z-index: 1;
}

.modal-close:hover {
  color: var(--text);
}

.modal-body {
  padding: 40px;
}

.modal-body h2 {
  text-align: center;
  margin-bottom: 32px;
  color: var(--secondary);
}

.video-wrapper {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
}

.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
  border-radius: var(--radius);
}

/* Responsividade */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 40px;
  }
  
  .steps {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  .pricing-cards {
    grid-template-columns: 1fr;
    max-width: 500px;
  }
  
  .pricing-card.popular {
    transform: none;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }
  
  section {
    padding: 60px 0;
  }
  
  .section-title {
    font-size: 32px;
  }
  
  /* Header mobile */
  .nav-toggle {
    display: block;
  }
  
  .nav-menu {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 32px;
    gap: 24px;
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
  }
  
  .nav-menu[aria-expanded="true"] {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .header-actions {
    display: none;
  }
  
  /* Hero mobile */
  .hero {
    padding: 120px 0 60px;
  }
  
  .hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  
  .hero-title {
    font-size: 36px;
  }
  
  .hero-subtitle {
    font-size: 18px;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  /* Features mobile */
  .features-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .features-content h2 {
    text-align: center;
  }
  
  /* Footer mobile */
  .footer-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .footer-links {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  /* Modal mobile */
  .modal-body {
    padding: 24px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 32px;
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-actions .btn {
    width: 100%;
    max-width: 280px;
  }
  
  .hero-stats {
    flex-direction: column;
    gap: 16px;
  }
  
  .logos {
    gap: 24px;
  }
  
  .step {
    padding: 24px 16px;
  }
  
  .testimonial {
    padding: 24px;
  }
  
  .pricing-card {
    padding: 32px 24px;
  }
  
  .final-cta h2 {
    font-size: 36px;
  }
  
  .final-cta p {
    font-size: 18px;
  }
}