:root {
  --bg: #f0f5f7; --surface: #fff; --line: #d3e0e6;
  --text: #0a1421; --muted: #4d6472; --cyan: #1d8f96; --amber: #b06f00;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #060d16; --surface: #0d1b28; --line: #1e3444;
    --text: #e8f2f6; --muted: #8ba7b6; --cyan: #3be6eb; --amber: #ffab38;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text); line-height: 1.8;
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
main { max-width: 60rem; margin: 0 auto; padding: 3.5rem 1.5rem 6rem; }
main.prose { max-width: 42rem; }
nav.lang {
  display: flex; gap: .9rem; font-size: .85rem; margin-bottom: 2.5rem;
  padding-bottom: .9rem; border-bottom: 1px solid var(--line);
}
nav.lang a { color: var(--muted); text-decoration: none; }
nav.lang a:hover { color: var(--cyan); }
nav.lang a[aria-current="page"] { color: var(--text); font-weight: 700; }
.eyebrow { font-size: .78rem; letter-spacing: .18em; color: var(--cyan);
           font-weight: 700; margin: 0; }
h1 { font-size: clamp(2rem, 6vw, 3.4rem); line-height: 1.15; margin: .5rem 0 0;
     letter-spacing: -.02em; text-wrap: balance; }
.prose h1 { font-size: 1.9rem; line-height: 1.3; margin: 0 0 .4rem; }
.lede { font-size: 1.05rem; color: var(--muted); max-width: 34rem; margin: 1rem 0 0; }
.meta { color: var(--muted); font-size: .9rem; margin: 0 0 2rem; }
h2 { font-size: 1.25rem; margin: 2.8rem 0 .5rem; }
.prose h2 { font-size: 1.15rem; }
h3 { font-size: 1rem; margin: 1.6rem 0 .4rem; color: var(--cyan); }
.shots { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
         gap: 1.5rem; margin: 3rem 0; }
.shots figure { margin: 0; }
.shots img { width: 100%; height: auto; display: block; border-radius: .9rem;
             border: 1px solid var(--line); }
.shots figcaption { color: var(--muted); font-size: .9rem; margin-top: .6rem; }
.rules { display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
         gap: 1.5rem; margin-top: 1rem; }
.rule { background: var(--surface); border: 1px solid var(--line);
        border-radius: .9rem; padding: 1.2rem 1.3rem; }
.rule h3 { margin: 0 0 .3rem; font-size: 1rem; color: var(--amber); }
.rule p { margin: 0; color: var(--muted); font-size: .95rem; }
dt { font-weight: 700; margin-top: 1.2rem; }
dd { margin: .2rem 0 0; color: var(--muted); }
table { border-collapse: collapse; width: 100%; margin: .8rem 0; font-size: .95rem; }
th, td { border: 1px solid var(--line); padding: .5rem .7rem; text-align: left;
         vertical-align: top; }
th { background: var(--surface); font-weight: 700; }
.wrap { overflow-x: auto; }
.links { display: flex; flex-wrap: wrap; gap: 1.4rem; margin-top: 3rem;
         padding-top: 1.6rem; border-top: 1px solid var(--line); }
a { color: var(--cyan); }
footer { color: var(--muted); font-size: .85rem; margin-top: 2.5rem; }
a:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }