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

html, body {
  background: #000;
  color: #fff;
  font-family: 'Courier New', monospace;
  line-height: 1.6;
}

.navbar {
  background: #000;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo h1 {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 1px;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 40px;
}

.nav-link {
  color: #fff;
  text-decoration: none;
  font-size: 14px;
  transition: color 0.3s ease;
  opacity: 0.7;
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  opacity: 1;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 100%;
  height: 1px;
  background: #fff;
}


.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 160px 40px;
  text-align: center;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: 56px;
  font-weight: 300;
  line-height: 1.3;
  margin-bottom: 24px;
  letter-spacing: -0.5px;
}

.hero-subtitle {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 40px;
  line-height: 1.7;
}

.cta-button {
  background: #fff;
  color: #000;
  padding: 12px 40px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  letter-spacing: 0.5px;
  border: none;
}

.cta-button:hover {
  background: rgba(255, 255, 255, 0.65);
  transform: translateY(-4px);
}


.main-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}

.section {
  padding: 64px 0;
}

.section:last-child {
  border-bottom: none;
}

.section-header h2 {
  font-size: 36px;
  font-weight: 400;
  margin-bottom: 40px;
  letter-spacing: -0.5px;
}

.section-content {
  max-width: 700px;
}

.section-content p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.8;
  margin-bottom: 20px;
}

.section-content p:last-child {
  margin-bottom: 0;
}

strong {
  font-weight: 600;
  color: #fff;
}


.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 64px;
  margin-top: 40px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.7;
  margin: 0;
}

.guarantee-list {
  list-style: none;
  max-width: 600px;
}

.guarantee-list li {
  padding: 12px 0;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.85);
  display: flex;
  align-items: center;
  gap: 12px;
}

.guarantee-icon {
  color: rgba(255, 255, 255, 0.4);
  padding: 0px 4px;
}

.footer {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 40px;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  padding-bottom: 40px;
}

.disclaimer {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.4);
  max-width: 600px;
  margin: 12px auto 0;
  line-height: 1.6;
}


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

@media (max-width: 768px) {
  .nav-wrapper {
    padding: 16px 20px;
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }

  .nav-menu {
    flex-direction: column;
    gap: 12px;
  }

  .hero-title {
    font-size: 36px;
  }

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

  .section {
    padding: 60px 0;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero,
  .main-content,
  .footer {
    padding-left: 20px;
    padding-right: 20px;
  }
}