:root {
  color-scheme: light dark;
  --text: #1d1d1f;
  --muted: #6e6e73;
  --background: #ffffff;
  --panel: #f5f5f7;
  --accent: #007aff;
}

@media (prefers-color-scheme: dark) {
  :root {
    --text: #f5f5f7;
    --muted: #a1a1a6;
    --background: #000000;
    --panel: #1c1c1e;
    --accent: #0a84ff;
  }
}

* { box-sizing: border-box; }

body {
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  margin: 0;
  color: var(--text);
  background: var(--background);
}

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

nav {
  display: flex; justify-content: space-between; align-items: center;
  max-width: 1040px; margin: 0 auto; padding: 18px 24px;
}
nav .brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 600; }
nav .brand img { width: 28px; height: 28px; }
nav .links { display: flex; gap: 22px; font-size: 15px; }

main { max-width: 1040px; margin: 0 auto; padding: 0 24px; }

.hero { text-align: center; padding: 56px 0 24px; }
.hero img.icon { width: 128px; height: 128px; }
.hero h1 { font-size: 52px; line-height: 1.1; margin: 20px 0 12px; letter-spacing: -0.02em; }
.hero .tagline { font-size: 21px; color: var(--muted); max-width: 620px; margin: 0 auto 32px; }
.badge {
  display: inline-block; padding: 12px 28px; border-radius: 12px;
  background: var(--accent); color: #fff; font-weight: 600; font-size: 17px;
}
a.badge:hover { text-decoration: none; opacity: 0.9; }
.requirement { font-size: 14px; color: var(--muted); margin-top: 12px; }

.screens {
  display: flex; justify-content: center; align-items: flex-start; gap: 24px;
  flex-wrap: wrap; margin: 48px 0 16px;
}
.screens img { width: 100%; max-width: 466px; height: auto; }
.wide { margin: 32px 0; }
.wide img { width: 100%; height: auto; border-radius: 16px; display: block; }
.caption { text-align: center; color: var(--muted); font-size: 15px; margin: 8px 0 0; }

.features {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px; margin: 56px 0;
}
.feature { background: var(--panel); border-radius: 16px; padding: 24px; }
.feature h3 { font-size: 19px; margin: 0 0 6px; }
.feature p { color: var(--muted); margin: 0; }

.page { max-width: 720px; margin: 0 auto; padding: 32px 0 0; }
.page h1 { font-size: 40px; margin: 0 0 8px; }
.page .lead { color: var(--muted); font-size: 19px; margin: 0 0 32px; }
.page h2 { font-size: 24px; margin: 40px 0 8px; }
.page h3 { font-size: 18px; margin: 24px 0 4px; }
.page code {
  font: 14px ui-monospace, SFMono-Regular, Menlo, monospace;
  background: var(--panel); padding: 2px 6px; border-radius: 6px;
}
.page .updated { color: var(--muted); margin: 0 0 32px; }

footer {
  text-align: center; font-size: 13px; color: var(--muted);
  padding: 56px 24px 40px;
}

@media (max-width: 600px) {
  nav .links { gap: 14px; }
  .hero h1 { font-size: 40px; }
  .hero .tagline { font-size: 18px; }
}