:root {
  --bg: #fefefe;
  --surface: #eceef1;
  --text: #102331;
  --muted: #506678;
  --blue: #1faafe;
  --link: #006ba6;
  --border: #dde3e9;
  --ink: #071521;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #050d18;
    --surface: #142433;
    --text: #f5f9fc;
    --muted: #a7bace;
    --blue: #4dbafd;
    --link: #4dbafd;
    --border: #1d3347;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
a { color: var(--link); }
a:focus-visible, .button:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }

header.site { padding: 22px 0; }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.logo img { height: 44px; width: auto; display: block; }
.logo .dark { display: none; }
@media (prefers-color-scheme: dark) { .logo .light { display: none; } .logo .dark { display: block; } }
nav.site { display: flex; gap: 6px; flex-wrap: wrap; }
nav.site a { color: var(--text); text-decoration: none; padding: 8px 14px; border-radius: 10px; font-weight: 500; }
nav.site a:hover, nav.site a[aria-current="page"] { background: var(--surface); }

.hero { padding: 48px 0 32px; display: grid; grid-template-columns: 1.05fr 1fr; gap: 44px; align-items: center; }
.hero h1 { font-size: clamp(34px, 5vw, 52px); line-height: 1.08; margin: 0 0 16px; letter-spacing: -0.02em; }
.hero p.lead { font-size: 20px; color: var(--muted); margin: 0 0 26px; }
.hero img.shot { width: 100%; height: auto; border-radius: 14px; border: 1px solid var(--border); box-shadow: 0 18px 50px rgba(0,0,0,.18); }
.button { display: inline-block; background: var(--blue); color: var(--ink); text-decoration: none; font-weight: 600; padding: 13px 22px; border-radius: 12px; }
.note { font-size: 14px; color: var(--muted); margin-top: 12px; }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; padding: 24px 0 48px; }
.card { background: var(--surface); border-radius: 14px; padding: 22px; }
.card h2 { font-size: 19px; margin: 0 0 8px; }
.card p { margin: 0; color: var(--muted); font-size: 16px; }

.disclaimer { background: var(--surface); border-left: 4px solid var(--blue); border-radius: 10px; padding: 16px 20px; margin: 8px 0 48px; color: var(--muted); font-size: 15px; }

main.doc { max-width: 760px; padding: 24px 20px 56px; }
main.doc h1 { font-size: clamp(30px, 4vw, 40px); line-height: 1.15; margin: 8px 0 6px; }
main.doc h2 { font-size: 22px; margin: 34px 0 8px; }
main.doc .meta { color: var(--muted); margin: 0 0 22px; }
table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 15px; }
th, td { text-align: left; vertical-align: top; padding: 10px 12px; border-bottom: 1px solid var(--border); }
th { background: var(--surface); }
.table-scroll { overflow-x: auto; }

footer.site { border-top: 1px solid var(--border); padding: 26px 0 40px; color: var(--muted); font-size: 14px; }
footer.site .wrap { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
footer.site a { color: var(--muted); }

@media (max-width: 820px) {
  .hero { grid-template-columns: 1fr; padding-top: 20px; gap: 28px; }
  .features { grid-template-columns: 1fr; }
}