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

:root {
  --primary: #000000;
  --text: #1F2937;
  --text-secondary: #6B7280;
  --bg: #FFFFFF;
  --bg-alt: #F9FAFB;
  --card: #FFFFFF;
  --border: #E5E7EB;
  --accent: #10B981;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}

/* 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 {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
}

.logo-line {
  display: block;
  width: 40px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), transparent);
}

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

.nav-link {
  color: var(--text);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  transition: color 0.2s;
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link:hover {
  color: var(--text-secondary);
}

.nav-link-empresas {
  background: var(--primary);
  color: #FFFFFF;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600;
}

.nav-link-empresas:hover {
  background: #1F2937;
  color: #FFFFFF;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
  background: var(--bg);
  position: relative;
}

.hero-container {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
}

.hero-content {
  max-width: 800px;
  text-align: center;
}

.hero-title {
  font-size: clamp(42px, 8vw, 80px);
  font-weight: 800;
  color: var(--text);
  margin-bottom: 24px;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.hero-title-highlight {
  color: var(--accent);
  position: relative;
  display: inline-block;
}

.hero-title-highlight::after {
  content: '';
  position: absolute;
  bottom: 8px;
  left: 0;
  right: 0;
  height: 12px;
  background: rgba(16, 185, 129, 0.2);
  z-index: -1;
}

.hero-subtitle {
  font-size: clamp(18px, 3vw, 24px);
  color: var(--text-secondary);
  margin-bottom: 48px;
  line-height: 1.6;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.download-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.download-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #000000;
  color: #FFFFFF;
  padding: 14px 24px;
  border-radius: 12px;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
  max-width: 200px;
  flex: 1;
  min-width: 160px;
}

.download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.download-btn svg {
  flex-shrink: 0;
}

.download-label {
  display: block;
  font-size: 11px;
  opacity: 0.9;
}

.download-name {
  display: block;
  font-size: 18px;
  font-weight: 700;
}

/* Sections */
section {
  padding: 100px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  text-align: center;
  margin-bottom: 64px;
  color: var(--text);
  letter-spacing: -0.02em;
}

/* Features */
.features-container {
  max-width: 1200px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
}

.feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  text-align: left;
  transition: transform 0.3s, box-shadow 0.3s;
  opacity: 0;
  transform: translateY(30px);
}

.feature-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: var(--bg-alt);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--primary);
}

.feature-card h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

.feature-card p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* CTA Section */
.cta-section {
  background: var(--bg-alt);
  border-radius: 24px;
  padding: 80px 48px;
  text-align: center;
  margin: 80px auto;
  max-width: 1200px;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s, transform 0.6s;
}

.cta-section.visible {
  opacity: 1;
  transform: translateY(0);
}

.cta-container {
  max-width: 700px;
  margin: 0 auto;
}

.cta-title {
  font-size: clamp(32px, 4vw, 42px);
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
  letter-spacing: -0.02em;
}

.cta-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 40px;
  line-height: 1.6;
}

.cta-buttons {
  justify-content: center;
}

/* FAQ Section */
.faq-section {
  background: var(--bg-alt);
  border-radius: 24px;
  margin: 80px auto;
  max-width: 1200px;
  padding: 80px 48px;
}

.faq-container {
  max-width: 900px;
  margin: 0 auto;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: box-shadow 0.2s;
  opacity: 0;
  transform: translateY(20px);
}

.faq-item.visible {
  opacity: 1;
  transform: translateY(0);
}

.faq-item:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.faq-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px;
  cursor: pointer;
  user-select: none;
}

.faq-header h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  flex: 1;
  margin-right: 16px;
}

.faq-icon {
  color: var(--text-secondary);
  transition: transform 0.3s;
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s;
  padding: 0 24px;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 24px 24px;
}

.faq-answer p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
}

.faq-answer a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.faq-answer a:hover {
  text-decoration: underline;
}

/* CTA Empresas Section */
.cta-empresas-section {
  background: var(--bg-alt);
  border-radius: 24px;
  padding: 80px 48px;
  text-align: center;
  margin: 80px auto;
  max-width: 1200px;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s, transform 0.6s;
}

.cta-empresas-section.visible {
  opacity: 1;
  transform: translateY(0);
}

.cta-empresas-container {
  max-width: 700px;
  margin: 0 auto;
}

.cta-empresas-title {
  font-size: clamp(32px, 4vw, 42px);
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
  letter-spacing: -0.02em;
}

.cta-empresas-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 40px;
  line-height: 1.6;
}

.cta-empresas-button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  background: var(--accent);
  color: #FFFFFF;
  border: none;
  border-radius: 12px;
  font-size: 18px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  text-decoration: none;
}

.cta-empresas-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(16, 185, 129, 0.3);
}

/* Footer */
.footer {
  background: var(--card);
  border-top: 1px solid var(--border);
  padding: 64px 24px 32px;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.footer-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}

.footer-link:hover {
  color: var(--text);
}

.footer-copyright {
  color: var(--text-secondary);
  font-size: 13px;
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
  .header-container {
    padding: 0 16px;
    flex-wrap: wrap;
  }

  .logo-text {
    font-size: 18px;
  }

  .nav {
    gap: 12px;
    flex-wrap: wrap;
  }

  .nav-link {
    font-size: 14px;
    padding: 4px 0;
  }

  .nav-link-empresas {
    padding: 8px 14px;
    font-size: 13px;
  }

  .hero {
    padding: 100px 20px 60px;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .feature-card {
    padding: 32px;
  }

  .cta-section {
    padding: 60px 32px;
    margin: 60px 16px;
  }

  .faq-section {
    margin: 60px 16px;
    padding: 60px 24px;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .footer-links {
    flex-direction: column;
    gap: 16px;
  }

  .download-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .download-btn {
    max-width: 100%;
  }
}

@media (max-width: 480px) {
  .header-container {
    padding: 0 12px;
  }

  .logo-text {
    font-size: 16px;
  }

  .nav {
    gap: 8px;
  }

  .nav-link {
    font-size: 12px;
  }

  .nav-link-empresas {
    padding: 6px 12px;
    font-size: 12px;
  }
}