:root {
  color-scheme: light dark;
  --bg: #fafaf8;
  --surface: #ffffff;
  --text: #1c1c1a;
  --text-muted: #6b6a63;
  --accent: #5b4ce8;
  --border: #e3e0d8;
  --hero-glow: rgba(99, 91, 255, 0.16);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #17171a;
    --surface: #202024;
    --text: #f0f0ee;
    --text-muted: #a3a29c;
    --accent: #a99cff;
    --border: #38383c;
    --hero-glow: rgba(120, 110, 255, 0.22);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
}

.hero {
  text-align: center;
  padding: 72px 20px 56px;
  background: radial-gradient(ellipse at 50% 0%, var(--hero-glow), transparent 65%);
}

.app-icon {
  width: 128px;
  height: 128px;
  border-radius: 28.5px;
  box-shadow: 0 12px 32px rgba(70, 60, 200, 0.28);
}

.hero h1 {
  font-size: 48px;
  letter-spacing: -0.02em;
  margin: 24px 0 4px;
}

.tagline {
  font-size: 20px;
  color: var(--accent);
  font-weight: 600;
  margin: 0 0 20px;
}

.lead {
  max-width: 560px;
  margin: 0 auto 28px;
  font-size: 17px;
  color: var(--text-muted);
}

.badge {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 16px;
}

@media (prefers-color-scheme: dark) {
  .badge { color: #17171a; }
}

.platforms {
  margin: 14px 0 0;
  font-size: 13px;
  color: var(--text-muted);
}

main {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px 24px;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.features article {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px;
}

.features h2 {
  font-size: 17px;
  margin: 0 0 6px;
}

.features p {
  margin: 0;
  font-size: 15px;
  color: var(--text-muted);
}

.steps {
  max-width: 640px;
  margin: 56px auto 0;
}

.steps h2 {
  font-size: 24px;
  text-align: center;
  margin-bottom: 20px;
}

.steps ol {
  padding-left: 22px;
  font-size: 16px;
}

.steps li {
  margin-bottom: 12px;
}

footer {
  max-width: 900px;
  margin: 48px auto 0;
  padding: 24px 20px 56px;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
}

footer nav a {
  color: var(--accent);
  margin: 0 12px;
  font-size: 14px;
}

footer p {
  max-width: 560px;
  margin: 16px auto 0;
}