/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-tertiary: #1a1a1a;
  --text-primary: #ffffff;
  --text-secondary: #a0a0a0;
  --accent: #ffffff;
  --border: #222222;
  --spacing: 80px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'SF Pro Display', 'Segoe UI', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 30px 0;
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
}

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

.logo {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.5px;
}

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

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

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

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 100px;
}

.hero h1 {
  font-size: 72px;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -2px;
  margin-bottom: 24px;
}

.hero .accent {
  color: var(--text-secondary);
}

.hero .privacy-tag {
  font-size: 24px;
  color: var(--text-secondary);
  text-align: right;
  margin-bottom: 60px;
  letter-spacing: 0.5px;
}

.hero .subtitle {
  font-size: 20px;
  color: var(--text-secondary);
  margin-bottom: 60px;
}

.video-container {
  width: 100%;
  max-width: 900px;
  aspect-ratio: 16/9;
  background: var(--bg-secondary);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.video-container video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Sections */
.section {
  padding: var(--spacing) 0;
  border-top: 1px solid var(--border);
}

.section.dark {
  background: var(--bg-secondary);
}

.section h2 {
  font-size: 48px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -1.5px;
  margin-bottom: 60px;
}

.section h2 .accent {
  color: var(--text-secondary);
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-card {
  padding: 40px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: border-color 0.2s;
}

.feature-card:hover {
  border-color: #333333;
}

.feature-card.highlight {
  border-color: var(--text-primary);
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.6;
}

/* Display Features */
.display-features {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.display-features li {
  font-size: 16px;
  color: var(--text-secondary);
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}

/* Products Section */
.product-card {
  padding: 40px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 8px;
  max-width: 600px;
}

.product-card h3 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

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

/* Contact Section */
.contact-text {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.contact-email {
  font-size: 16px;
  color: var(--text-secondary);
}

.contact-email a {
  color: var(--text-primary);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  transition: border-color 0.2s;
}

.contact-email a:hover {
  border-color: var(--text-primary);
}

/* Future Section */
.future-text {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 700px;
  margin-bottom: 60px;
  line-height: 1.7;
}

.future-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.future-card {
  padding: 32px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.future-card h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.3px;
}

.future-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Footer */
footer {
  padding: 60px 0;
  border-top: 1px solid var(--border);
  text-align: center;
}

footer p {
  font-size: 14px;
  color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 1024px) {
  :root {
    --spacing: 60px;
  }

  .hero h1 {
    font-size: 56px;
  }

  .section h2 {
    font-size: 40px;
  }

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

  .future-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 24px;
  }

  .navbar {
    padding: 20px 0;
  }

  .nav-links {
    gap: 24px;
  }

  .nav-links a {
    font-size: 13px;
  }

  .hero h1 {
    font-size: 40px;
  }

  .hero .subtitle {
    font-size: 16px;
  }

  .section h2 {
    font-size: 32px;
    margin-bottom: 40px;
  }

  .feature-card {
    padding: 28px;
  }

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