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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: #0a0a0a;
  color: #fafafa;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: #fafafa;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.nav-logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, #5ab9ea, #3a8fd4);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  color: white;
}

.nav-links {
  display: flex;
  gap: 28px;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: #fafafa;
}

.hero {
  padding: 80px 32px 60px;
  text-align: center;
}

.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 72px;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: 24px;
  background: linear-gradient(180deg, #ffffff 0%, rgba(255, 255, 255, 0.7) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-tagline {
  font-size: 20px;
  color: rgba(255, 255, 255, 0.5);
  font-weight: 400;
  line-height: 1.6;
  margin-bottom: 40px;
  letter-spacing: -0.01em;
}

.hero-cta {
  margin-bottom: 64px;
}

.btn-primary {
  display: inline-block;
  padding: 14px 32px;
  background: #fafafa;
  color: #0a0a0a;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border-radius: 10px;
  transition: opacity 0.2s, transform 0.2s;
}

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.phone-mockup {
  display: flex;
  justify-content: center;
  perspective: 1000px;
}

.phone-frame {
  width: 300px;
  background: #000000;
  border-radius: 40px;
  padding: 16px;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.08),
    0 40px 80px rgba(0, 0, 0, 0.5),
    0 0 120px rgba(90, 185, 234, 0.08);
  transform: rotateX(2deg);
  transition: transform 0.4s ease;
  overflow: hidden;
}

.phone-frame:hover {
  transform: rotateX(0deg) translateY(-4px);
}

.phone-screenshot {
  width: 100%;
  display: block;
  border-radius: 26px;
}

.features {
  padding: 80px 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.features-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 16px;
  padding: 28px 24px;
  transition: background 0.3s, border-color 0.3s;
}

.feature-card:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.1);
}

.feature-icon {
  color: #5ab9ea;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: #fafafa;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.45);
  line-height: 1.6;
}

.cta-section {
  padding: 80px 32px;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.cta-section h2 {
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
  background: linear-gradient(180deg, #ffffff 0%, rgba(255, 255, 255, 0.7) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cta-section p {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.45);
  margin-bottom: 32px;
}

footer {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 24px 32px;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.35);
}

.footer-nav {
  display: flex;
  gap: 24px;
}

.footer-nav a {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.35);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-nav a:hover {
  color: rgba(255, 255, 255, 0.7);
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 44px;
  }

  .hero-tagline {
    font-size: 17px;
  }

  .hero-tagline br {
    display: none;
  }

  .features-inner {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .cta-section h2 {
    font-size: 28px;
  }

  .nav-inner {
    padding: 14px 20px;
  }

  .hero {
    padding: 48px 20px 40px;
  }

  .features {
    padding: 48px 20px;
  }

  .cta-section {
    padding: 48px 20px;
  }

  footer {
    padding: 20px;
  }

  .footer-inner {
    flex-direction: column;
    gap: 12px;
  }

  .phone-frame {
    width: 260px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 36px;
  }
}