:root {
  color-scheme: light;
  --bg: #f6f8fb;
  --surface: #ffffff;
  --fg: #121722;
  --fg-2: #4c5566;
  --line: rgba(18, 23, 34, 0.1);
  --accent: #2a78d6;
  --accent-ink: #1c5cab;
  --accent-wash: rgba(42, 120, 214, 0.1);
  --font: 'Segoe UI', system-ui, -apple-system, Roboto, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #0f131a;
    --surface: #171c25;
    --fg: #e8ecf3;
    --fg-2: #a3adbd;
    --line: rgba(232, 236, 243, 0.12);
    --accent: #5c9cf0;
    --accent-ink: #8dbaf5;
    --accent-wash: rgba(92, 156, 240, 0.14);
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 var(--font);
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}
a { color: var(--accent-ink); }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.wrap { max-width: 760px; margin: 0 auto; padding-block: 28px 64px; }
.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding-bottom: 20px; border-bottom: 1px solid var(--line); margin-bottom: 32px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--fg); font-weight: 700; font-size: 18px; }
.brand img { width: 32px; height: 32px; border-radius: 8px; }
.top nav { display: flex; gap: 16px; flex-wrap: wrap; font-size: 15px; }
.top nav a { text-decoration: none; color: var(--fg-2); }
.top nav a[aria-current] { color: var(--accent-ink); font-weight: 600; }
h1 { font-size: clamp(28px, 5vw, 38px); line-height: 1.15; letter-spacing: -0.015em; margin: 0 0 8px; text-wrap: balance; }
h2 { font-size: 21px; margin: 32px 0 8px; }
p, ul { margin: 0 0 12px; }
ul { padding-left: 22px; }
li { margin-bottom: 6px; }
code { font-size: 0.92em; background: var(--accent-wash); padding: 1px 5px; border-radius: 4px; }
.muted { color: var(--fg-2); }
.lead { font-size: 19px; color: var(--fg-2); max-width: 62ch; }
.shot { width: 100%; height: auto; border-radius: 12px; border: 1px solid var(--line); margin: 24px 0 8px; display: block; }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin: 24px 0; }
.features div { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 16px; }
.features strong { display: block; margin-bottom: 4px; }
.note { background: var(--accent-wash); border-radius: 12px; padding: 14px 16px; margin: 20px 0; }
.email { font-size: 20px; font-weight: 600; }
footer { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--line); font-size: 14px; color: var(--fg-2); }
.btn { display: inline-block; padding: 12px 22px; border-radius: 10px; background: var(--accent); color: #fff; font-weight: 600; text-decoration: none; }
.btn:hover { filter: brightness(1.08); }
.top nav { flex-wrap: wrap; }