/* The guide pages (guide, otomad, faq, en/): plain reading pages beside the app. */
:root {
  color-scheme: light dark;
  --bg: #f4f5f7;
  --fg: #1d1f24;
  --muted: #626773;
  --card: #ffffff;
  --line: #e2e4e9;
  --accent: #6d28d9;
  --accent-fg: #ffffff;
  --link: #2563eb;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111216;
    --fg: #e8e9ec;
    --muted: #9ba0aa;
    --card: #1a1b1f;
    --line: #2b2d33;
    --accent: #7c3aed;
    --link: #7fb2ff;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, "Hiragino Sans", "Yu Gothic UI", "Meiryo", sans-serif;
  line-height: 1.85;
  overflow-wrap: anywhere;
}
a { color: var(--link); }
.site-nav {
  max-width: 46rem;
  margin: 0 auto;
  padding: 0.9rem 1rem 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.3rem 1rem;
  font-size: 0.9rem;
}
.site-nav .brand {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-right: auto;
  font-weight: 700;
  font-size: 1rem;
  color: inherit;
  text-decoration: none;
}
.site-nav a[aria-current="page"] { color: inherit; font-weight: 700; text-decoration: none; }
main {
  max-width: 46rem;
  margin: 0.8rem auto 1.5rem;
  padding: 1.6rem 1.6rem 2rem;
  background: var(--card);
  border-radius: 12px;
}
h1 { font-size: 1.55rem; line-height: 1.4; margin: 0 0 0.8rem; }
h2 { font-size: 1.2rem; line-height: 1.5; margin: 2.2rem 0 0.6rem; padding-bottom: 0.3rem; border-bottom: 1px solid var(--line); }
h3 { font-size: 1.02rem; margin: 1.5rem 0 0.4rem; }
.lead { font-size: 1.05rem; }
.muted { color: var(--muted); font-size: 0.9rem; }
.updated { margin-top: -0.4rem; }
.cta {
  display: inline-block;
  margin: 0.6rem 0;
  padding: 0.65rem 1.4rem;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-fg);
  font-weight: 700;
  text-decoration: none;
}
.points { padding-left: 1.2rem; }
.points li { margin: 0.25rem 0; }
.steps { padding-left: 1.4rem; }
.steps > li { margin: 0.9rem 0; }
.steps > li > b:first-child { display: block; }
.steps > li > h3 { margin: 0 0 0.2rem; }
.steps > li > h3 + p { margin: 0; }
dl.faq dt, dl.terms dt { font-weight: 700; margin-top: 1.4rem; }
dl.faq dd, dl.terms dd { margin: 0.3rem 0 0; }
dl.terms dt { margin-top: 1rem; }
kbd {
  padding: 0 0.35rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  font-family: inherit;
  font-size: 0.9em;
}
.site-footer {
  max-width: 46rem;
  margin: 0 auto 2rem;
  padding: 0 1rem;
  font-size: 0.85rem;
  color: var(--muted);
}
.site-footer a { color: inherit; }
@media (max-width: 600px) {
  main { margin: 0.6rem 0 1rem; border-radius: 0; padding: 1.2rem 1rem 1.6rem; }
  h1 { font-size: 1.35rem; }
}

/* The effect gallery (/effects, /en/effects): wider, for the samples side by side. */
body.wide .site-nav, body.wide main, body.wide .site-footer { max-width: 72rem; }
.fx-shelves { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.fx-shelves a {
  padding: 0.15rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: inherit;
  text-decoration: none;
  font-size: 0.9rem;
}
.fx-shelves a span { margin-left: 0.35rem; color: var(--muted); font-size: 0.8rem; }
.fx-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
  gap: 1.1rem 1rem;
}
.fx { min-width: 0; scroll-margin-top: 1rem; }
.fx-clip { position: relative; aspect-ratio: 16 / 9; border-radius: 8px; overflow: hidden; background: #2a1f57; }
.fx-clip video { display: block; width: 100%; height: 100%; object-fit: cover; cursor: pointer; }
.fx-plain {
  position: absolute;
  top: 0.4rem;
  left: 0.4rem;
  padding: 0 0.45rem;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  font-size: 0.75rem;
  line-height: 1.6;
  pointer-events: none;
}
.fx h3 { margin: 0.45rem 0 0.1rem; font-size: 0.98rem; line-height: 1.45; }
.fx-tag {
  display: inline-block;
  margin-left: 0.2rem;
  padding: 0 0.4rem;
  border-radius: 4px;
  background: var(--bg);
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 400;
  vertical-align: 0.1em;
}
.fx p { margin: 0; font-size: 0.86rem; line-height: 1.65; }
.fx details { margin-top: 0.15rem; font-size: 0.82rem; color: var(--muted); }
.fx summary { cursor: pointer; }
@media (max-width: 600px) {
  .fx-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.9rem 0.6rem; }
  .fx h3 { font-size: 0.88rem; }
  .fx p { font-size: 0.8rem; }
}