:root {
  --bg: #ffffff;
  --bg-soft: #f4f6fa;
  --fg: #1a1f2b;
  --fg-muted: #5b6474;
  --accent: #2f6fdb;
  --accent-fg: #ffffff;
  --border: #dfe4ec;
  --radius: 12px;
  --font:
    -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue",
    sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --bg-soft: #161922;
    --fg: #e6e9ef;
    --fg-muted: #97a0b3;
    --accent: #6aa9ff;
    --accent-fg: #0f1115;
    --border: #262b38;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  -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 24px;
}

header.site {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 0;
}

header.site img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

header.site .name {
  font-weight: 700;
  font-size: 18px;
  color: var(--fg);
}

header.site nav {
  margin-left: auto;
  display: flex;
  gap: 18px;
  font-size: 15px;
}

.hero {
  padding: 56px 0 40px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(30px, 5vw, 44px);
  line-height: 1.15;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}

.hero p.sub {
  font-size: 19px;
  color: var(--fg-muted);
  max-width: 560px;
  margin: 0 auto 32px;
}

.cta-row {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  align-items: center;
}

.btn {
  display: inline-block;
  padding: 12px 26px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 16px;
  border: 1px solid var(--border);
  color: var(--fg);
}

.btn:hover {
  text-decoration: none;
  border-color: var(--accent);
}

.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-fg);
}

.cta-note {
  margin-top: 14px;
  font-size: 14px;
  color: var(--fg-muted);
}

section.block {
  padding: 32px 0;
  border-top: 1px solid var(--border);
}

section.block h2 {
  font-size: 24px;
  margin: 0 0 18px;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.feature {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
}

.feature h3 {
  margin: 0 0 8px;
  font-size: 17px;
}

.feature p {
  margin: 0;
  font-size: 15px;
  color: var(--fg-muted);
}

.pricing {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
}

.pricing .price {
  font-size: 40px;
  font-weight: 700;
  margin: 6px 0;
}

.pricing ul {
  list-style: none;
  padding: 0;
  margin: 16px 0 24px;
  color: var(--fg-muted);
}

.pricing li {
  margin: 6px 0;
}

dl.faq dt {
  font-weight: 600;
  margin-top: 22px;
}

dl.faq dd {
  margin: 6px 0 0;
  color: var(--fg-muted);
}

article.prose h2 {
  font-size: 20px;
  margin-top: 32px;
}

article.prose p,
article.prose li {
  color: var(--fg-muted);
}

article.prose strong {
  color: var(--fg);
}

.changelog-entry {
  border-top: 1px solid var(--border);
  padding: 18px 0;
}

.changelog-entry:first-of-type {
  border-top: none;
}

.changelog-entry .version {
  font-weight: 700;
}

.changelog-entry .date {
  color: var(--fg-muted);
  font-size: 14px;
  margin-left: 8px;
}

footer.site {
  border-top: 1px solid var(--border);
  margin-top: 48px;
  padding: 28px 0 40px;
  font-size: 14px;
  color: var(--fg-muted);
}

footer.site .wrap {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

footer.site .spacer {
  flex: 1;
}