:root {
  --bg: #ffffff;
  --text: #1d1d1f;
  --text-secondary: #6e6e73;
  --accent: #0066cc;
  --border: #d2d2d7;
  --card-bg: #f5f5f7;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --text: #f5f5f7;
    --text-secondary: #a1a1a6;
    --accent: #2997ff;
    --border: #424245;
    --card-bg: #1c1c1e;
  }
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 17px;
  padding: 40px 20px 80px;
  display: flex;
  justify-content: center;
}

.container {
  max-width: 680px;
  width: 100%;
}

header {
  margin-bottom: 48px;
  text-align: center;
}

.app-name {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

h1 {
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 24px;
}

h2 {
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-top: 40px;
  margin-bottom: 12px;
}

p {
  font-size: 17px;
  margin-bottom: 16px;
  color: var(--text);
}

ul {
  margin-bottom: 24px;
  padding-left: 20px;
}

li {
  margin-bottom: 8px;
  font-size: 17px;
}

li strong {
  font-weight: 600;
}

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

a:hover {
  text-decoration: underline;
}

.cta-button {
  display: inline-block;
  background: var(--accent);
  color: #ffffff;
  font-weight: 500;
  font-size: 17px;
  padding: 14px 28px;
  border-radius: 999px;
  margin: 16px 0 32px;
  transition: opacity 0.15s ease;
}

.cta-button:hover {
  opacity: 0.85;
  text-decoration: none;
}

.divider {
  height: 1px;
  background: var(--border);
  margin: 48px 0 32px;
  border: none;
}

footer {
  text-align: center;
  color: var(--text-secondary);
  font-size: 14px;
}

.updated {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 32px;
}