:root {
  color-scheme: light dark;
  --bg: #f8fafd;
  --surface: #fff;
  --text: #1f1f1f;
  --muted: #5f6368;
  --border: #dde3ea;
  --accent: #0b57d0;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.85;
  background: var(--bg);
  color: var(--text);
}
* { box-sizing: border-box; }
body { margin: 0; }
a { color: var(--accent); text-underline-offset: .22em; overflow-wrap: anywhere; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; border-radius: 2px; }
::selection { background: #c2e7ff; color: #1f1f1f; }
.site-header, footer { max-width: 1080px; margin: auto; padding: 24px 32px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.site-header { border-bottom: 1px solid var(--border); font-size: .875rem; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--text); font-weight: 650; text-decoration: none; }
.brand img { flex-shrink: 0; }
.header-links, .languages { display: flex; align-items: center; flex-wrap: wrap; gap: 16px; }
.header-links { gap: 16px 24px; }
.site-links { display: flex; align-items: center; flex-wrap: wrap; gap: 16px; }
.header-links a { display: inline-flex; align-items: center; min-height: 36px; }
.header-links .github-link { justify-content: center; min-width: 44px; min-height: 44px; color: var(--text); border-radius: 8px; }
.github-link img { display: block; }
.github-link:hover { background: var(--border); }
.languages a[aria-current="page"] { color: var(--text); font-weight: 650; text-decoration: none; }
main { max-width: 780px; margin: 56px auto 72px; padding: 0 32px; }
h1 { margin: 0; font-size: clamp(2rem, 5vw, 2.75rem); line-height: 1.3; letter-spacing: -.025em; }
h2 { font-size: 1.35rem; line-height: 1.5; margin: 0 0 16px; scroll-margin-top: 24px; text-wrap: balance; }
p { margin: 0 0 16px; }
.updated { margin: 12px 0 32px; color: var(--muted); font-size: .875rem; }
.lead { font-size: 1.25rem; font-weight: 600; }
.contents { display: flex; flex-wrap: wrap; gap: 8px 24px; border-block: 1px solid var(--border); padding: 20px 0; margin: 32px 0 44px; font-size: .9375rem; }
.contents a { display: inline-flex; align-items: center; min-height: 32px; }
section + section { margin-top: 44px; }
ul { margin: 0 0 20px; padding-left: 1.5em; }
li + li { margin-top: 12px; }
code { font-size: .9em; overflow-wrap: anywhere; }
.permissions { margin: 0; }
.permissions div { border-bottom: 1px solid var(--border); padding: 16px 0; }
.permissions div:first-child { padding-top: 0; }
dt { font-weight: 600; }
dd { margin: 4px 0 0; }
footer { border-top: 1px solid var(--border); color: var(--muted); font-size: .875rem; }
.skip-link { position: absolute; top: -100px; left: 16px; padding: 8px 16px; background: var(--surface); }
.skip-link:focus { top: 8px; }
.home { max-width: 1080px; }
.home-intro { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr); align-items: center; gap: clamp(28px, 5vw, 64px); padding-bottom: 48px; border-bottom: 1px solid var(--border); }
.home h1 { font-size: clamp(2.3rem, 4vw, 3.25rem); line-height: 1.2; text-wrap: balance; }
.brand-illustration { margin: 0; }
.brand-illustration img { display: block; width: 100%; height: auto; border-radius: 12px; }
.home-description { margin: 24px 0 16px; font-size: 1.125rem; line-height: 1.7; }
.independent, .trademark { color: var(--muted); font-size: .875rem; }
.independent { line-height: 1.65; }
.home-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 12px 20px; margin: 24px 0 0; }
.home-actions > a { min-height: 44px; }
.home-actions > a:not(.primary-link) { display: inline-flex; align-items: center; }
.primary-link { display: inline-flex; align-items: center; min-height: 44px; padding: 10px 18px; border-radius: 8px; background: var(--accent); color: var(--surface); font-weight: 600; text-decoration: none; }
.primary-link:hover { text-decoration: underline; }
.product-shot { margin: 48px 0 64px; }
.product-shot > a { display: block; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.product-shot img { display: block; width: 100%; height: auto; }
.product-shot figcaption { margin-top: 12px; color: var(--muted); font-size: .875rem; line-height: 1.7; }
.home > section:not(.home-intro) { max-width: 800px; margin-inline: auto; }
.home > section:not(.home-intro) + section { margin-top: 64px; }
.feature-list { margin: 0; }
.feature-list div { display: grid; grid-template-columns: minmax(0, 200px) minmax(0, 1fr); gap: 32px; padding: 22px 0; border-bottom: 1px solid var(--border); }
.feature-list div:first-child { padding-top: 0; }
.feature-list dt { font-size: 1.0625rem; }
.feature-list dd { margin-top: 0; }
.color-feature { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 320px); align-items: center; gap: clamp(24px, 5vw, 56px); }
.color-feature figure { margin: 0; }
.color-feature figure a { display: block; border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.color-feature figure img { display: block; width: 100%; height: auto; }
.color-feature figcaption { margin-top: 10px; color: var(--muted); font-size: .875rem; }
.faq-list { margin: 0; }
.faq-list > div { padding: 20px 0; border-bottom: 1px solid var(--border); }
.faq-list > div:first-child { padding-top: 0; }
.faq-list h3 { margin: 0; font-size: 1.0625rem; line-height: 1.5; }
.faq-list p { margin: 6px 0 0; }
.trademark { margin-top: 28px; }
@media (max-width: 759px) {
  .home-intro { display: block; padding-bottom: 40px; }
  .brand-illustration { margin-top: 28px; }
  .feature-list div { display: block; padding: 20px 0; }
  .feature-list dd { margin-top: 6px; }
  .color-feature { grid-template-columns: minmax(0, 1fr); }
  .color-feature figure { width: min(100%, 400px); margin-inline: auto; }
}
@media (max-width: 540px) {
  .site-header, footer { padding: 20px; flex-wrap: wrap; }
  .header-links { width: 100%; justify-content: space-between; }
  main { margin: 36px auto 48px; padding: 0 20px; }
  .contents { gap: 8px 20px; }
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #17191c; --surface: #202327; --text: #e8eaed; --muted: #aeb4bc; --border: #3c4043; --accent: #a8c7fa; }
  .github-link img { filter: invert(1); }
}
@media print {
  :root { color-scheme: light; --bg: #fff; --text: #000; --muted: #444; --border: #ccc; --accent: #000; font-size: 11pt; }
  main { max-width: none; margin: 24px 0; padding: 0; }
  .site-header, footer { padding: 0; }
  .contents, .skip-link, .header-links, footer a { display: none; }
  .product-shot { margin-inline: 0; }
  h2 { break-after: avoid; }
  p, li { orphans: 3; widows: 3; }
}