:root {
  --bg: #0b0f19;
  --surface: #111827;
  --border: rgba(255, 255, 255, 0.1);
  --primary: #10b981;
  --primary-hover: #059669;
  --text: #f9fafb;
  --text-muted: #9ca3af;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

header {
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
}

nav a {
  color: var(--text-muted);
  text-decoration: none;
  margin-left: 24px;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.15s ease;
}

nav a:hover {
  color: #fff;
}

.hero {
  padding: 80px 0 60px;
  text-align: center;
}

.badge {
  display: inline-block;
  background: rgba(16, 185, 129, 0.15);
  color: var(--primary);
  padding: 6px 16px;
  border-radius: 9999px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid rgba(16, 185, 129, 0.3);
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.hero p {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 36px;
}

.cta-group {
  display: flex;
  justify-content: center;
  gap: 16px;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  padding: 12px 28px;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

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

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  color: #fff;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 500;
  text-decoration: none;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}

.features {
  padding: 60px 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-3px);
  border-color: rgba(16, 185, 129, 0.4);
}

@media (max-width: 900px) {
  .features {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero h1 {
    font-size: 36px;
  }
}

@media (max-width: 600px) {
  .features {
    grid-template-columns: 1fr;
  }
  .cta-group {
    flex-direction: column;
    align-items: center;
  }
  .hero h1 {
    font-size: 28px;
  }
  header {
    flex-direction: column;
    gap: 16px;
  }
  nav a {
    margin: 0 10px;
  }
}

footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
}