:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --text: #16181d;
  --muted: #5b6270;
  --line: #e3e6eb;
  --accent: #2f6fe0;
  --accent-text: #ffffff;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111317;
    --surface: #1a1d23;
    --text: #eceef2;
    --muted: #9aa1ae;
    --line: #2a2e36;
    --accent: #5b8ff0;
    --accent-text: #0b0d10;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; }

.wrap { max-width: 980px; margin: 0 auto; padding: 0 20px; }

header.site { display: flex; align-items: center; justify-content: space-between; padding-block: 18px; }
header.site .home { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 600; }
header.site .home img { width: 28px; height: 28px; }
header.site nav { display: flex; gap: 18px; font-size: 15px; }

.hero { text-align: center; padding-block: 48px 24px; }
.hero img.icon { width: 112px; height: 112px; }
.hero h1 { font-size: clamp(36px, 6vw, 56px); line-height: 1.1; margin: 16px 0 10px; letter-spacing: -0.02em; }
.hero .lede { font-size: clamp(18px, 2.4vw, 22px); color: var(--muted); max-width: 640px; margin: 0 auto 26px; }
.badge { display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 4px 12px; margin-bottom: 4px; }
.button { display: inline-block; background: var(--accent); color: var(--accent-text); font-weight: 600;
  padding: 12px 22px; border-radius: 10px; }
.button:hover { text-decoration: none; filter: brightness(1.08); }
.small { font-size: 14px; color: var(--muted); margin-top: 12px; }

.shot { margin: 28px auto 8px; border-radius: 12px; overflow: hidden; border: 1px solid var(--line);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.18); }
.shot img { display: block; width: 100%; }
.caption { text-align: center; font-size: 14px; color: var(--muted); margin-bottom: 40px; }

section { padding-block: 28px; }
section h2 { font-size: 28px; margin: 0 0 18px; letter-spacing: -0.01em; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.grid.four { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 20px; }
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); }
.step { font-size: 13px; font-weight: 700; color: var(--accent); letter-spacing: 0.05em; text-transform: uppercase; }
ul.plain { padding-left: 20px; margin: 0; }
ul.plain li { margin-bottom: 6px; }

main.page { max-width: 720px; margin: 0 auto; padding: 24px 20px 40px; }
main.page h1 { font-size: 34px; margin: 10px 0 6px; }
main.page h2 { font-size: 21px; margin: 28px 0 8px; }
main.page .updated { color: var(--muted); font-size: 15px; }

footer.site { border-top: 1px solid var(--line); margin-top: 30px; padding-block: 24px 40px; font-size: 14px; color: var(--muted);
  display: flex; flex-wrap: wrap; gap: 8px 18px; justify-content: space-between; }