:root {
  --bg: #f5f5f7;
  --text: #1d1d1f;
  --muted: #6e6e73;
  --accent: #5e5ce6;
  --card: #ffffff;
  --line: #e3e3e8;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --text: #f5f5f7;
    --muted: #a1a1a6;
    --accent: #7d7aff;
    --card: #1c1c1e;
    --line: #2c2c2e;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}

main {
  max-width: 680px;
  margin: 0 auto;
  padding: 48px 20px 24px;
}

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

h1 { font-size: 40px; line-height: 1.1; margin: 0 0 8px; letter-spacing: -0.02em; }
h2 { font-size: 24px; margin: 40px 0 12px; letter-spacing: -0.01em; }
h3 { font-size: 18px; margin: 24px 0 4px; }
p { margin: 0 0 12px; }

code {
  font: 15px ui-monospace, "SF Mono", Menlo, monospace;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 1px 5px;
  overflow-wrap: anywhere;
}

.hero { text-align: center; padding-bottom: 8px; }
.hero p { color: var(--muted); }
.hero .lead { font-size: 22px; color: var(--text); margin-bottom: 16px; }

.app-icon {
  border-radius: 22px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
  margin-bottom: 16px;
}

.features {
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
  display: grid;
  gap: 10px;
}

.features li {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 16px;
}

.note { color: var(--muted); font-size: 15px; }
.back { margin-bottom: 24px; }

footer {
  max-width: 680px;
  margin: 0 auto;
  padding: 24px 20px 48px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 15px;
  text-align: center;
}

footer span { margin: 0 8px; }
.fineprint { margin-top: 12px; font-size: 13px; }