:root {
  --bg: #0b1220;
  --bg-alt: #121b2e;
  --text: #e7ecf5;
  --muted: #9aa7bd;
  --accent: #2dd4bf;
  --border: #223049;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 32px;
}

.brand {
  font-weight: 700;
  font-size: 1.2rem;
}

.badge {
  font-size: 0.75rem;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 12px;
}

.hero {
  background: linear-gradient(180deg, var(--bg-alt), var(--bg));
  border-bottom: 1px solid var(--border);
}

.hero-content {
  max-width: 720px;
  margin: 0 auto;
  padding: 60px 24px 80px;
  text-align: center;
}

.hero-content h1 {
  font-size: 2.2rem;
  margin-bottom: 16px;
}

.hero-content p {
  color: var(--muted);
  font-size: 1.05rem;
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 40px 24px;
}

.notice {
  background: rgba(45, 212, 191, 0.08);
  border: 1px solid rgba(45, 212, 191, 0.3);
  border-radius: 10px;
  padding: 16px 20px;
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 48px;
}

.features h2, .roadmap h2 {
  font-size: 1.4rem;
  margin-bottom: 24px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
}

.card h3 {
  margin-top: 0;
  font-size: 1rem;
  color: var(--accent);
}

.card p {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 0;
}

.roadmap {
  margin-top: 56px;
}

.roadmap ol {
  color: var(--muted);
}

.roadmap li {
  margin-bottom: 8px;
}

footer {
  text-align: center;
  padding: 32px 24px;
  color: var(--muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
}

footer code {
  color: var(--accent);
}