:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #0f172a;
  --muted: #4b5563;
  --card: #f8fafc;
  --border: #e5e7eb;
  --accent: #2563eb;
  --accent-fg: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0f17;
    --fg: #f8fafc;
    --muted: #94a3b8;
    --card: #111827;
    --border: #1f2937;
    --accent: #3b82f6;
    --accent-fg: #ffffff;
  }
}

* { box-sizing: border-box; }
html, body { background: var(--bg); color: var(--fg); }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
    system-ui, sans-serif;
  max-width: 520px;
  margin: 0 auto;
  padding: 56px 24px 40px;
  line-height: 1.55;
  text-align: center;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }

header { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.logo {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  display: block;
  object-fit: cover;
}
a.logo-link {
  display: inline-block;
  border-radius: 16px;
  line-height: 0;
}
h1 {
  font-size: 36px;
  line-height: 1.15;
  margin: 4px 0 0;
  letter-spacing: -0.02em;
}
h2 {
  font-size: 20px;
  line-height: 1.3;
  margin: 32px 0 8px;
  letter-spacing: -0.01em;
}
.tagline { color: var(--muted); font-size: 17px; margin: 8px 0 0; }

.install {
  display: flex;
  gap: 12px;
  margin-top: 32px;
  flex-wrap: wrap;
  justify-content: center;
}
.store-btn {
  flex: 1 1 200px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-radius: 12px;
  background: var(--fg);
  color: var(--bg);
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.1s ease, opacity 0.1s ease;
}
.store-btn:hover { transform: translateY(-1px); }
.store-btn:active { transform: translateY(0); opacity: 0.9; }
.store-btn svg { flex: none; }
.store-btn .label { display: flex; flex-direction: column; line-height: 1.1; }
.store-btn .label small { font-weight: 400; font-size: 11px; opacity: 0.7; }
.store-btn .label span { font-size: 17px; }

.features {
  margin-top: 40px;
  display: grid;
  gap: 12px;
}
.feature {
  padding: 14px 16px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 15px;
}
.feature b { display: block; margin-bottom: 2px; }

.prose { text-align: left; }
.prose p, .prose ul, .prose ol { margin: 12px 0; }
.prose ul, .prose ol { padding-left: 22px; }
.prose li { margin: 6px 0; }
.prose h2 { text-align: left; }
.meta { color: var(--muted); font-size: 14px; margin-top: 4px; }

footer {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}
footer a { color: inherit; }