:root{color-scheme:light;--bg:#fffaf0;--ink:#193b43;--mint:#14765e;--gold:#a65b08;--muted:#526b70}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:80px}body{margin:0;background:var(--bg);color:var(--ink);font-family:ui-rounded,'Hiragino Maru Gothic ProN','Yu Gothic',sans-serif;line-height:1.85}a{color:inherit;text-underline-offset:5px}button,a{-webkit-tap-highlight-color:transparent}a:focus-visible,summary:focus-visible{outline:3px solid var(--gold);outline-offset:5px}header{position:relative;z-index:2;display:flex;justify-content:space-between;align-items:center;gap:20px;max-width:1400px;margin:auto;padding:24px 5vw;border-bottom:1px solid #193b4320}.brand{text-decoration:none;font-weight:800;letter-spacing:.06em;font-size:15px}.brand b{color:var(--gold);font-size:24px;margin-right:10px}nav{display:flex;gap:24px;align-items:center;font-size:13px;font-weight:700}nav a{text-decoration:none}.play{display:inline-flex;align-items:center;justify-content:center;gap:24px;background:var(--mint);color:#092b29;border:0;border-radius:100px;padding:16px 28px;font-weight:900;text-decoration:none;box-shadow:0 8px 28px #79deb622}.play:hover{background:var(--gold);transform:translateY(-2px)}main{max-width:1400px;margin:auto}.hero{position:relative;display:grid;grid-template-columns:1fr 1.12fr;gap:4vw;align-items:center;padding:72px 5vw 85px;background:radial-gradient(ellipse at 70% 20%,#b9eee880,transparent 65%)}.kicker{font-size:12px;letter-spacing:.18em;color:var(--mint);font-weight:800}.hero h1{font-size:clamp(42px,5.3vw,78px);line-height:1.2;letter-spacing:-.035em;margin:23px 0;color:var(--gold)}h1 em{font-style:normal;color:var(--ink)}.hero .copy{font-size:20px;font-weight:800;max-width:24em;margin:25px 0}.hero p{color:var(--muted);max-width:31em}.note{font-size:12px;color:var(--muted)}.hero-art{position:relative;padding:20px 0 40px}.hero-art:before{content:'✦';position:absolute;font-size:140px;left:-40px;top:-100px;color:var(--gold);z-index:1;text-shadow:0 0 50px #ffcc7840}.hero-art img{width:100%;aspect-ratio:1.08;object-fit:cover;border-radius:80px 16px 80px 16px;box-shadow:0 35px 70px #244c4324;border:1px solid #94cfc8;transform:rotate(2deg)}.hero-art .caption{position:absolute;bottom:0;right:20px;color:var(--gold);font-size:13px;letter-spacing:.06em}.strip{background:var(--mint);color:#123a35;padding:19px 5vw;display:flex;gap:35px;justify-content:space-around;flex-wrap:wrap;font-size:14px;font-weight:900}.section{padding:76px 5vw;border-bottom:1px solid #193b4320}.section-title{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:34px}.section h2{font-size:clamp(27px,3.1vw,44px);line-height:1.4;margin:8px 0}.section-title p{max-width:29em;color:var(--muted);font-size:14px}.worlds{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.world img{width:100%;aspect-ratio:1.42;object-fit:cover;border-radius:16px}.world .num{color:var(--gold);font-size:12px;letter-spacing:.15em;margin-top:20px}.world h3{font-size:20px;line-height:1.5;margin:10px 0}.world p{font-size:14px;color:var(--muted)}.story{display:grid;grid-template-columns:1fr 1fr;gap:8vw}.story p{color:var(--muted)}.story .big-star{font-size:100px;line-height:1;color:var(--gold);letter-spacing:25px;margin:24px 0}.feature-list{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}.feature{border-top:2px solid #47b99d66;padding-top:20px}.feature span{font-size:26px;color:var(--gold)}.feature h3{font-size:19px}.feature p{color:var(--muted);font-size:14px}.cta{padding:76px 5vw;text-align:center;background:radial-gradient(ellipse at bottom,#b9ead388,transparent 65%)}.cta h2{font-size:clamp(27px,4vw,48px);line-height:1.5}.cta p{color:var(--muted)}footer{max-width:1400px;margin:auto;padding:28px 5vw;display:flex;justify-content:space-between;gap:20px;border-top:1px solid #193b4320;font-size:12px;color:var(--muted)}footer div{display:flex;gap:24px}.document{max-width:920px;padding:60px 6vw 80px;margin:auto}.document h1{font-size:clamp(32px,5vw,52px);line-height:1.4;color:var(--gold)}.document h2{font-size:24px;color:var(--mint);margin:48px 0 15px}.document h3{font-size:18px;margin-top:27px}.document p,.document li{color:#405d65}.document section{border-top:1px solid #193b4325;padding-top:4px;margin-top:34px}.toc{display:flex;flex-wrap:wrap;gap:12px 24px;padding:22px;background:#e8f5ed;border-radius:15px;font-size:14px}.controls{display:grid;grid-template-columns:1fr 1fr;gap:20px}.control{padding:20px;border:1px solid #64ac974a;border-radius:16px}.gesture{font-size:40px;color:var(--gold);line-height:1.3}.control h3{margin:12px 0 5px}.control p{font-size:14px;margin:0}.items{width:100%;border-collapse:collapse;font-size:14px}.items th,.items td{text-align:left;padding:14px 8px;border-bottom:1px solid #193b4325;vertical-align:top}.items th{color:var(--mint)}details{border-bottom:1px solid #193b4325;padding:20px 0}summary{cursor:pointer;font-weight:700;color:var(--mint)}.alert{border-left:3px solid var(--gold);padding:10px 20px;background:#fff0ce}.back{display:inline-block;margin-top:35px;color:var(--mint)}@media(max-width:750px){header{padding:18px 5vw;flex-wrap:wrap;gap:12px}.brand{font-size:13px}nav{gap:16px;font-size:12px;width:100%;justify-content:space-between}nav .play{padding:8px 18px;gap:12px}.hero{grid-template-columns:1fr;padding:35px 6vw 40px;gap:36px}.hero h1{font-size:50px}.hero .copy{font-size:18px}.hero-art{padding:0 0 26px}.hero-art:before{font-size:80px;left:auto;right:-4px;top:-60px}.hero-art img{aspect-ratio:1.45;border-radius:36px 10px 36px 10px;transform:none}.strip{gap:10px 22px;font-size:12px;padding:15px 6vw}.section{padding:45px 6vw}.section-title{display:block}.worlds{grid-template-columns:1fr;gap:30px}.world img{aspect-ratio:1.75}.world .num{margin-top:10px}.story{grid-template-columns:1fr;gap:15px}.story .big-star{font-size:60px}.feature-list{grid-template-columns:1fr;gap:14px}.feature{padding-top:15px}.cta{padding:45px 6vw}footer{flex-direction:column;padding:25px 6vw}.document{padding:32px 6vw 60px}.document h2{font-size:22px}.controls{grid-template-columns:1fr}.items{font-size:13px}.items td{padding:12px 6px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.play:hover{transform:none}}

img{height:auto}

header{background:#fffdf7}.play{background:#a9eccb;color:#143d35}.play:hover{background:#ffe29b}.strip{background:#d9f4e5;color:#205644}.hero-art:before,.story .big-star{color:#efb340}.hero-art .caption{color:#755011}.control{background:#fffdf7}

.brand img{display:block;width:210px;height:auto}.hero h1.game-logo{margin:14px 0 20px;line-height:0;max-width:620px}.game-logo img{display:block;width:100%;height:auto;filter:drop-shadow(0 8px 12px #3452)}@media(max-width:600px){.brand img{width:160px}.hero h1.game-logo{margin:18px 0}}

/* Introduction page: visual first, independent from the manual. */
.intro-hero{text-align:center;padding:24px 5vw 42px;background:radial-gradient(ellipse at 50% 20%,#d2f2e9,transparent 70%)}.intro-hero h1{margin:0 auto 8px;max-width:430px;line-height:0}.intro-hero h1 img{width:100%;height:auto}.intro-copy{font-size:clamp(24px,3.1vw,42px);font-weight:900;line-height:1.4;margin:14px 0 24px}.mobile-break{display:none}.intro-screen{display:block;width:min(100%,920px);height:auto;aspect-ratio:16/9;object-fit:cover;margin:0 auto 24px;border-radius:24px;border:4px solid #fff;box-shadow:0 16px 40px #193b431a}.intro-play{font-size:22px;min-width:220px;min-height:60px}.intro-actions{display:grid;grid-template-columns:repeat(3,1fr);text-align:center;background:#e6f6e9}.intro-actions span{font-size:44px;color:#14765e;line-height:1}.intro-actions h2{font-size:24px;margin:10px 0}.intro-actions p{grid-column:1/-1;margin:20px 0 0;color:var(--muted)}.intro #worlds>h2{margin-bottom:32px}.intro-ready{display:grid;grid-template-columns:1fr 1fr;gap:48px}.intro-ready h2{font-size:30px}.difficulty-tags{display:flex;flex-wrap:wrap;gap:10px;padding:0;list-style:none;margin:24px 0}.difficulty-tags li{padding:8px 18px;background:#e4f3e8;border-radius:24px;font-weight:700}.input-icons{display:flex;justify-content:space-between;max-width:420px;gap:16px;margin:20px 0}.input-icons span{display:flex;flex-direction:column;align-items:center;font-size:30px;color:var(--mint)}.input-icons small{font-size:13px;color:var(--ink)}.intro .world p{margin-bottom:0}.intro .cta{padding:50px 5vw}.intro .cta .note{margin-top:24px}.intro .world img{aspect-ratio:16/9}@media(max-width:750px){.intro header{flex-wrap:nowrap;padding:12px 5vw;gap:8px}.intro nav{width:auto;gap:14px}.intro .brand img{width:140px}.intro-hero{padding:22px 5vw 28px}.intro-hero h1{max-width:300px}.intro-copy{font-size:27px;margin:12px 0 20px}.mobile-break{display:block}.intro-screen{border-radius:18px;margin-bottom:20px}.intro-actions{padding:28px 5vw}.intro-actions h2{font-size:20px}.intro-actions p{font-size:14px}.intro-ready{grid-template-columns:1fr;gap:32px}.intro .worlds{gap:28px}.intro .section{padding:36px 5vw}.intro-ready h2{font-size:26px}.intro footer div{flex-wrap:wrap;gap:12px 20px}}

.home-tip{text-align:center;background:#d9f4e5;color:#205644;padding:10px 16px;font-size:14px;font-weight:800;line-height:1.5}@media(max-width:750px){.home-tip{font-size:12px;padding:9px 10px}}