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

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: #0f172a;
  color: #e5e7eb;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.container {
  width: 100%;
  max-width: 700px;
  padding: 3rem 2rem;
  text-align: center;
}

.brand {
  display: inline-block;
  color: #94a3b8;
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 3rem;
}

.brand:hover {
  color: #e5e7eb;
}

h1 {
  font-size: 3rem;
  margin-bottom: 0.75rem;
}

.tagline {
  font-size: 1.2rem;
  color: #94a3b8;
  line-height: 1.6;
}

.download {
  margin: 3rem 0;
}

.download-button {
  display: inline-block;
  padding: 0.9rem 1.8rem;
  border-radius: 8px;
  background: #e5e7eb;
  color: #0f172a;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.download-button:hover {
  transform: translateY(-2px);
  opacity: 0.9;
}

.version {
  margin-top: 0.8rem;
  color: #64748b;
  font-size: 0.85rem;
}

section {
  margin-bottom: 3rem;
}

h2 {
  font-size: 1.3rem;
  margin-bottom: 1rem;
}

.about p {
  color: #94a3b8;
  line-height: 1.7;
}

.features ul {
  list-style: none;
  color: #94a3b8;
  line-height: 2;
}

footer {
  margin-top: 4rem;
  color: #64748b;
  font-size: 0.85rem;
}

footer a {
  color: #94a3b8;
  text-decoration: none;
}

footer a:hover {
  color: #e5e7eb;
}

@media (max-width: 600px) {
  .container {
    padding: 2rem 1.5rem;
  }

  h1 {
    font-size: 2.4rem;
  }
}