:root {
  --bg: #0b0b0f;
  --surface: #14141b;
  --text: #f5f5f7;
  --muted: #9a9aa6;
  --accent: #7c5cff;
  --accent-hover: #6a4aff;
  --border: #232330;
  --radius: 14px;
  --max-width: 720px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover { color: var(--accent-hover); }

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px 64px;
}

.hero {
  min-height: 80vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.brand h1 {
  font-size: 56px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
  background: linear-gradient(135deg, #fff 0%, #b8a8ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.tagline {
  font-size: 20px;
  color: var(--muted);
  max-width: 520px;
  margin: 0 auto 40px;
}

.cta {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 17px;
  transition: background 0.15s ease, transform 0.15s ease;
}
.cta:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-1px);
}

.footer-links {
  margin-top: 56px;
  color: var(--muted);
  font-size: 15px;
}
.footer-links a { color: var(--muted); }
.footer-links a:hover { color: var(--text); }
.footer-links span { margin: 0 10px; }

.doc {
  padding-top: 24px;
}
.doc h1 {
  font-size: 36px;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
}
.doc .updated {
  color: var(--muted);
  font-size: 14px;
  margin: 0 0 32px;
}
.doc h2 {
  font-size: 22px;
  margin: 32px 0 12px;
}
.doc p, .doc li {
  color: #d9d9e1;
}
.doc ul { padding-left: 20px; }
.doc a { color: var(--accent); }

.back {
  display: inline-block;
  margin-bottom: 24px;
  color: var(--muted);
  font-size: 15px;
}
.back:hover { color: var(--text); }