:root { color-scheme: light dark; }
body { font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; max-width: 42rem; margin: 0 auto; padding: 2rem 1rem 4rem; }
h1 { font-size: 1.8rem; margin-bottom: .2rem; }
h2 { font-size: 1.2rem; margin-top: 2rem; }
code { font-size: .92em; }
nav { margin-bottom: 2rem; font-size: .95rem; }

/* Home page (index.html and /<lang>/index.html). Scoped to body.home so the policy pages keep the plain look above. */
.home {
  --bg: #f5f6fb; --surface: #ffffff; --text: #1d2033; --muted: #555b75; --line: #dfe2ee;
  --night: #1e2140; --night-text: #f3f4fb; --night-muted: #c3c7e0;
  --accent: #ffc93c; --accent-text: #1e2140; --link: #5b3fc4;
  max-width: none; padding: 0; background: var(--bg); color: var(--text);
}
@media (prefers-color-scheme: dark) {
  .home { --bg: #14152a; --surface: #1e2140; --text: #eceefa; --muted: #b3b8d4; --line: #2f3360; --night: #0e0f20; --link: #b9a6ff; }
}
.home a { color: var(--link); }
.home .wrap { max-width: 68rem; margin: 0 auto; padding: 0 1rem; }
.home header.top { background: var(--night); color: var(--night-text); }
.home header.top .bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .9rem 1rem; max-width: 68rem; margin: 0 auto; flex-wrap: wrap; }
.home .brand { display: flex; align-items: center; gap: .6rem; color: inherit; text-decoration: none; font-weight: 700; font-size: 1.2rem; }
.home .brand img { width: 40px; height: 40px; border-radius: 10px; }
.home .sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.home details.lang { position: relative; font-size: .95rem; }
.home details.lang summary { cursor: pointer; list-style: none; color: var(--night-text); padding: .35rem .8rem; border: 1px solid rgba(255,255,255,.28); border-radius: 999px; }
.home details.lang summary::-webkit-details-marker { display: none; }
.home details.lang summary::before { content: "🌐 "; }
.home details.lang summary::after { content: " ▾"; color: var(--night-muted); }
.home details.lang ul { position: absolute; right: 0; top: calc(100% + .4rem); z-index: 10; list-style: none; margin: 0; padding: .4rem; min-width: 10rem; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; box-shadow: 0 10px 30px rgba(0,0,0,.25); }
.home details.lang li a { display: block; padding: .4rem .7rem; border-radius: 8px; color: var(--text); text-decoration: none; }
.home details.lang li a:hover { background: var(--bg); }
.home details.lang li a[aria-current] { font-weight: 700; color: var(--link); }
.home .hero { background: var(--night); color: var(--night-text); padding: 2.5rem 0 3.5rem; }
.home .hero .wrap { display: grid; grid-template-columns: 1fr 1.25fr; gap: 2.5rem; align-items: center; }
.home .hero h1 { font-size: clamp(2rem, 4vw, 2.9rem); line-height: 1.15; margin: 0 0 1rem; }
.home .hero p.lead { font-size: 1.15rem; color: var(--night-muted); margin: 0 0 1.6rem; }
.home .hero img { width: 100%; height: auto; border-radius: 14px; box-shadow: 0 18px 50px rgba(0,0,0,.45); display: block; }
.home .cta { display: inline-block; background: var(--accent); color: var(--accent-text); font-weight: 700; padding: .85rem 1.4rem; border-radius: 999px; text-decoration: none; font-size: 1.05rem; }
.home .cta:hover { filter: brightness(1.05); }
.home .facts { list-style: none; padding: 0; margin: 1.2rem 0 0; display: flex; flex-wrap: wrap; gap: .4rem 1.2rem; color: var(--night-muted); font-size: .95rem; }
.home .facts li::before { content: "★ "; color: var(--accent); }
.home section { padding: 3.5rem 0 0; }
.home section h2 { font-size: 1.7rem; margin: 0 0 .4rem; }
.home section p.intro { color: var(--muted); margin: 0 0 1.8rem; max-width: 44rem; }
.home .cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr)); gap: 1rem; }
.home .card { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 1.2rem 1.3rem; }
.home .card h3 { font-size: 1.08rem; margin: 0 0 .4rem; }
.home .card p { margin: 0; color: var(--muted); font-size: .98rem; }
.home .shots { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.4rem; }
.home .shots figure { margin: 0; }
.home .shots img { width: 100%; height: auto; border-radius: 12px; border: 1px solid var(--line); display: block; }
.home .shots figcaption { margin-top: .5rem; font-weight: 600; }
.home .split { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.home .price { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 1.5rem; }
.home .price h3 { margin: 0 0 .5rem; font-size: 1.2rem; }
.home .price ul { margin: .5rem 0 0; padding-left: 1.2rem; color: var(--muted); }
.home footer { margin-top: 4rem; padding: 2rem 0 3rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .95rem; }
.home footer nav { margin: 0 0 .6rem; display: flex; flex-wrap: wrap; gap: .4rem 1.4rem; font-size: inherit; }
@media (max-width: 760px) {
  .home .hero .wrap, .home .split { grid-template-columns: 1fr; }
  .home .shots { grid-template-columns: 1fr; }
  .home .hero { padding-top: 1.5rem; }
}
.home p.note { margin-top: 1.4rem; }
.home .hero h1:lang(zh) { word-break: keep-all; }
.home:lang(ko) { word-break: keep-all; overflow-wrap: anywhere; }
.home .hero h1:lang(ja) { word-break: auto-phrase; }
/* "Play online" (tools/site/build.py PLAY_ONLINE): an outlined second button beside the App Store one, and a short note under both. */
.home .ctas { display: flex; flex-wrap: wrap; gap: .6rem; }
.home .cta-secondary { background: transparent; color: var(--night-text); border: 2px solid var(--accent); padding: calc(.85rem - 2px) calc(1.4rem - 2px); }
.home .cta-secondary:hover { background: rgba(255, 201, 60, .12); filter: none; }
.home .play-note { margin: .7rem 0 0; font-size: .92rem; color: var(--night-muted); max-width: 30rem; }
.home .card p + p { margin-top: .6rem; }