:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --text: #1d1d1f;
  --muted: #6e6e73;
  --line: #e3e4e8;
  --accent: #0a66d8;
  --hero-a: #1f4fa8;
  --hero-b: #3f9bc4;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111214;
    --surface: #1b1c1f;
    --text: #f2f2f4;
    --muted: #9a9aa1;
    --line: #2c2d31;
    --accent: #4a9eff;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

.wrap { max-width: 760px; margin: 0 auto; padding: 0 20px; }

nav {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 18px 0;
  font-size: 15px;
}
nav .brand { display: flex; align-items: center; gap: 10px; font-weight: 600; color: var(--text); margin-right: auto; }
nav .brand img { width: 28px; height: 28px; }
nav a:not(.brand) { color: var(--muted); }

.hero {
  background: linear-gradient(135deg, var(--hero-a), var(--hero-b));
  color: #fff;
  text-align: center;
  padding: 64px 20px 0;
  overflow: hidden;
}
.hero img.icon { width: 112px; height: 112px; }
.hero h1 { font-size: 48px; line-height: 1.1; margin: 16px 0 10px; letter-spacing: -0.02em; }
.hero p { font-size: 21px; margin: 0 auto 32px; max-width: 520px; opacity: 0.9; }
.hero .shot {
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
  width: min(900px, 100%);
  margin: 40px auto 0;
  border-radius: 14px 14px 0 0;
  box-shadow: 0 -10px 60px rgba(0, 0, 0, 0.25);
}

.button {
  display: inline-block;
  padding: 12px 26px;
  border-radius: 999px;
  background: #fff;
  color: var(--hero-a);
  font-weight: 600;
}
.hero p.note { font-size: 14px; margin: 12px auto 0; opacity: 0.75; }
.page .button.download { background: var(--accent); color: #fff; }

.button:hover { text-decoration: none; opacity: 0.92; }

section { padding: 56px 0; }
h2 { font-size: 30px; letter-spacing: -0.01em; margin: 0 0 20px; }
h3 { font-size: 18px; margin: 28px 0 6px; }
p, li { color: var(--text); }
.muted { color: var(--muted); }

.features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.feature { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 20px 22px; }
.feature h3 { margin: 0 0 4px; }
.feature p { margin: 0; color: var(--muted); font-size: 15px; }

.cta { text-align: center; }
.cta img { width: 88px; height: 88px; }
.cta h2 { margin: 12px 0 6px; }
.cta p { margin: 0 0 20px; }
.cta p.small { font-size: 14px; margin: 16px 0 0; }
.button.primary { background: var(--accent); color: #fff; }

.figure { width: 100%; border-radius: 14px; margin-top: 8px; border: 1px solid var(--line); }

.page { padding: 40px 0 72px; }
.page h1 { font-size: 40px; letter-spacing: -0.02em; margin: 24px 0 6px; }

.card { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 22px 24px; margin: 24px 0; }
.card p { margin: 0; }

footer { border-top: 1px solid var(--line); padding: 28px 0 48px; font-size: 14px; color: var(--muted); }
footer .wrap { display: flex; gap: 20px; flex-wrap: wrap; }
footer .wrap span { margin-right: auto; }

@media (max-width: 640px) {
  .hero h1 { font-size: 36px; }
  .hero p { font-size: 18px; }
  .features { grid-template-columns: 1fr; }
  nav { gap: 16px; }
}