:root {
  --bg: #ffffff;
  --bg-soft: #f5f6fa;
  --fg: #15171c;
  --muted: #566070;
  --line: #dfe3ec;
  --accent: #5b3df5;
  --accent-fg: #ffffff;
  --accent-soft: #eeeaff;
  --maxw: 1040px;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #101216; --bg-soft: #171a21; --fg: #eceef4; --muted: #a0a8b8; --line: #2a2f3a;
    --accent: #8b74ff; --accent-fg: #101216; --accent-soft: #1f1b3a;
  }
}
:root[data-theme="dark"] {
  --bg: #101216; --bg-soft: #171a21; --fg: #eceef4; --muted: #a0a8b8; --line: #2a2f3a;
  --accent: #8b74ff; --accent-fg: #101216; --accent-soft: #1f1b3a;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }
a:focus-visible, button:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 16px; }

[hidden] { display: none !important; }

header.site { border-bottom: 1px solid var(--line); }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 64px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--fg); text-decoration: none; font-size: 19px; }
.brand img { width: 28px; height: 28px; }
nav.main { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
nav.main a { color: var(--muted); text-decoration: none; font-size: 15px; }
nav.main a:hover, nav.main a[aria-current="page"] { color: var(--fg); }
.langs { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.langs a { color: var(--muted); font-size: 13px; padding: 6px 10px; text-decoration: none; }
.langs a[aria-current="true"] { background: var(--accent); color: var(--accent-fg); }
.pricebox { display: inline-flex; flex-wrap: wrap; align-items: baseline; gap: 4px 8px; }
.pricebox .was { color: var(--muted); font-size: 0.6em; font-weight: 500; }
.pricebox .sale { background: var(--accent); color: var(--accent-fg); font-size: 12px; font-weight: 700; padding: 3px 9px; border-radius: 999px; }
.plan .alt .pricebox .now { font-weight: 700; color: var(--fg); }
.notice { background: var(--accent-soft); border: 1px solid var(--line); border-radius: 10px; padding: 12px 16px; font-size: 14.5px; margin: 0 0 24px; }

.btn {
  display: inline-block; padding: 12px 20px; border-radius: 10px; font-weight: 600; text-decoration: none;
  background: var(--accent); color: var(--accent-fg); border: 1px solid var(--accent);
}
.btn.secondary { background: transparent; color: var(--fg); border-color: var(--line); }

.hero { padding: 72px 0 56px; }
.hero h1 { font-size: clamp(34px, 6vw, 56px); line-height: 1.1; margin: 0 0 16px; letter-spacing: -0.02em; }
.hero p.lead { font-size: 20px; color: var(--muted); max-width: 640px; margin: 0 0 28px; }
.hero .actions { display: flex; gap: 12px; flex-wrap: wrap; }
.note { color: var(--muted); font-size: 14px; margin-top: 14px; }

section.block { padding: 48px 0; border-top: 1px solid var(--line); }
section.block h2 { font-size: 28px; margin: 0 0 24px; letter-spacing: -0.01em; }
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card { background: var(--bg-soft); border: 1px solid var(--line); border-radius: 14px; padding: 20px; }
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 15.5px; }
.steps { counter-reset: s; list-style: none; padding: 0; display: grid; gap: 14px; }
.steps li { counter-increment: s; display: flex; gap: 14px; align-items: flex-start; }
.steps li::before {
  content: counter(s); flex: none; width: 30px; height: 30px; border-radius: 50%;
  background: var(--accent-soft); color: var(--accent); font-weight: 700; display: grid; place-items: center;
}

.plans { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); align-items: start; }
.plan { border: 1px solid var(--line); border-radius: 16px; padding: 28px; background: var(--bg-soft); }
.plan.featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.plan h2, .plan h3 { margin: 0 0 4px; font-size: 22px; }
.plan .price { font-size: 34px; font-weight: 700; margin: 8px 0 16px; }
.plan ul { padding-left: 20px; margin: 0 0 20px; color: var(--muted); }
.plan li { margin: 6px 0; }
.badge { display: inline-block; font-size: 12px; font-weight: 700; padding: 3px 9px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); }

.prose { max-width: 760px; padding: 48px 0 72px; }
.prose h1 { font-size: 36px; line-height: 1.2; margin: 0 0 6px; }
.prose h2 { font-size: 22px; margin: 36px 0 8px; }
.prose p, .prose li { color: var(--fg); }
.prose .meta { color: var(--muted); font-size: 14px; margin-bottom: 24px; }
.draft { background: var(--accent-soft); border: 1px solid var(--line); border-radius: 10px; padding: 12px 16px; font-size: 14.5px; margin: 0 0 24px; }

footer.site { border-top: 1px solid var(--line); padding: 28px 0; 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); margin-right: 16px; }

@media (max-width: 600px) {
  body { font-size: 16px; }
  .hero { padding: 44px 0 36px; }
  .hero p.lead { font-size: 18px; }
}
.plan .price small { font-size: 16px; font-weight: 500; color: var(--muted); }
.plan .alt { margin: -8px 0 16px; color: var(--muted); font-size: 15px; }
.faq { border: 1px solid var(--line); border-radius: 10px; padding: 0 16px; margin: 10px 0; background: var(--bg-soft); }
.faq summary { cursor: pointer; font-weight: 600; padding: 14px 0; }
.faq summary:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
.faq p { margin: 0 0 14px; color: var(--muted); }
.prose .lead { font-size: 19px; color: var(--muted); }
.prose .steps { margin: 12px 0 24px; }
dl.cols { display: grid; grid-template-columns: max-content 1fr; gap: 6px 18px; margin: 12px 0 24px; }
dl.cols dt { font-weight: 600; }
dl.cols dd { margin: 0; color: var(--muted); }
dl.cols code, .prose code { background: var(--bg-soft); border: 1px solid var(--line); border-radius: 4px; padding: 1px 5px; font-size: 0.92em; }
@media (max-width: 600px) { dl.cols { grid-template-columns: 1fr; } dl.cols dd { margin-bottom: 8px; } }