:root{--ink:#123c43;--green:#087760;--sea:#075c65;--paper:#f8fbf8;--line:#c9ddd5}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Yu Gothic","Hiragino Kaku Gothic ProN",Meiryo,sans-serif;line-height:1.9}a{color:inherit}button{font:inherit;cursor:pointer}button,a{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible{outline:3px solid #dd9d24;outline-offset:5px}.skip{position:fixed;top:-100px;z-index:20;background:white;padding:10px}.skip:focus{top:10px}.topbar{height:68px;padding:0 5%;display:flex;align-items:center;justify-content:space-between;background:white}.brand{text-decoration:none;font-size:12px;font-weight:bold;letter-spacing:.15em}.brand span{color:var(--green);margin-left:8px}nav{display:flex;gap:30px;font-size:11px;letter-spacing:.12em;font-weight:bold}nav a{text-decoration:none}.button{display:inline-flex;gap:35px;align-items:center;justify-content:center;border:0;border-radius:3px;background:var(--green);color:white;padding:14px 28px;text-decoration:none;font-weight:bold;box-shadow:0 4px 0 #064c41}.button:hover{background:#096850}.section{max-width:1240px;margin:0 auto;padding:66px 36px}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:24px}.eyebrow{font-size:12px;color:var(--green);letter-spacing:.12em;margin:0 0 8px;font-weight:bold}h2{font-size:27px;line-height:1.3;letter-spacing:.08em;margin:0}h2 span{font-size:13px;font-weight:normal;letter-spacing:0;margin-left:20px}.platform,.section-heading>p{font-size:12px;margin:0;color:#45646a}.game-shell{aspect-ratio:16/9;background:#041b23;position:relative;border:6px solid #123e45;border-radius:4px;box-shadow:0 15px 38px #0d41491a;overflow:hidden}.game-shell iframe{width:100%;height:100%;border:0;display:block}.launch{width:100%;height:100%;position:relative;display:grid;place-items:center;text-align:center}.launch>img{position:absolute;width:100%;height:100%;object-fit:cover;opacity:.23}.launch>div{position:relative;color:white;padding:15px}.launch p{font-size:21px;font-weight:bold}.launch small{display:block;margin-top:23px;font-size:12px}.game-tools{display:flex;justify-content:space-between;align-items:center;gap:14px;font-size:12px}.text-button{white-space:nowrap;background:none;border:0;color:var(--green);text-decoration:underline}.save-note{border-left:3px solid #b8d8ce;padding-left:17px;font-size:13px;margin:17px 0 0}.save-note small{color:#536d71}.game-shell:fullscreen{width:100vw;height:100vh;border:0;border-radius:0;aspect-ratio:auto}.manual-section{background:#edf3ed;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.manual-link{display:block;box-shadow:0 10px 30px #283a2920;cursor:zoom-in}.manual-link img{width:100%;height:auto;display:block}.about{display:grid;grid-template-columns:1fr 1.2fr;gap:60px;padding-top:85px;padding-bottom:85px}.story p{margin:0 0 22px;font-size:15px}.story .subtle{font-size:12px;color:#527078}.game-facts{font-size:12px;margin:30px 0 0}.game-facts>div{display:flex;border-bottom:1px solid var(--line);padding:7px 0}.game-facts dt{width:110px}.game-facts dd{margin:0}.staff-wrap{background:var(--ink);color:#fff}.staff-wrap .eyebrow{color:#a5d8c8}.staff{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:34px}.staff dt{font-size:9px;letter-spacing:.07em;color:#b5d5d0}.staff dd{margin:10px 0 0;font-size:24px}.previous{display:flex;gap:35px;justify-content:space-between;align-items:center}.previous p{font-size:12px}.previous-link{min-width:330px;text-decoration:none;border:1px solid #98b8a9;padding:23px 55px 23px 25px;position:relative;font-weight:bold}.previous-link span{display:block;font-size:14px;font-weight:normal}.previous-link b{position:absolute;right:22px;top:30px;color:var(--green)}footer{border-top:1px solid var(--line);padding:25px 5%;font-size:11px;display:flex;justify-content:space-between;gap:20px}dialog{border:0;padding:0;width:min(96vw,1640px);max-width:96vw;max-height:94vh;background:#f6f3e7;color:var(--ink);box-shadow:0 25px 90px #0008}dialog::backdrop{background:#03191be8}.dialog-bar{display:flex;align-items:center;gap:22px;padding:12px 18px;font-size:12px}.dialog-bar span{margin-right:auto;font-weight:bold;letter-spacing:.1em}.dialog-bar button{border:1px solid #9cb6ad;background:white;padding:5px 12px}.manual-scroll{overflow:auto;max-height:calc(94vh - 65px)}.manual-scroll img{display:block;width:1536px;max-width:none;height:auto;cursor:zoom-out}body.modal-open{overflow:hidden}[hidden]{display:none!important}@media(min-width:1650px){.manual-scroll img{width:100%}}@media(max-width:760px){.topbar{height:56px;padding:0 18px}.brand{font-size:9px;letter-spacing:.02em}nav{gap:14px;font-size:9px}.section{padding:42px 20px}.section-heading{display:block}.section-heading .platform,.section-heading>p{display:block;margin-top:12px}h2{font-size:23px}h2 span{display:block;margin:8px 0 0}.game-shell{border-width:3px}.launch p{display:none}.launch .button{padding:9px 16px;font-size:13px}.launch small{font-size:9px;margin-top:15px}.about{grid-template-columns:1fr;gap:32px}.desktop{display:none}.staff{grid-template-columns:1fr 1fr;gap:30px 18px}.staff dt{font-size:8px}.previous{display:block}.previous-link{display:block;min-width:0;margin-top:25px}footer{display:block}footer span{display:block;margin-top:6px}.dialog-bar{gap:10px;font-size:10px}.dialog-bar span{display:none}.game-tools{align-items:start}.manual-scroll img{width:1536px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}





/* Ocean palette and play-first layout. The game keeps its original 16:9 frame. */
:root{--ink:#143d58;--sea:#125c80;--paper:#dfedf7;--line:#b8d0e2}
body{background-image:url('assets/waves.svg'),linear-gradient(135deg,#e7f4fa,#cddff0);background-attachment:scroll,fixed}
.topbar{background:#edf7fceF;border-bottom:1px solid #bad3e2}
.play{padding-top:20px;padding-bottom:38px}
.play .section-heading{margin-bottom:14px;align-items:center}
.game-title{font-size:18px;line-height:1.5;margin:0 0 4px;letter-spacing:.03em}
.game-title span{font-size:14px;white-space:nowrap;font-weight:normal}
.play h2{font-size:12px;letter-spacing:.15em;color:#316681}
.game-shell{border-color:#17465e;box-shadow:0 12px 30px #194b6d22}
.manual-section{background:#d8e8f5d9}
.about,.previous{background:#edf6fbd9}
.staff-wrap{background:#173e5beF}
.staff-wrap .eyebrow,.staff dt{color:#b5d5e8}
.save-note{border-color:#89b2d0}.save-note small,.story .subtle{color:#426078}
.previous-link{border-color:#8fb2cd;background:#e0eef880}
footer{background:#c8deede6}
@media(min-width:761px){.play{max-width:min(1240px,calc((100svh - 200px)*16/9 + 72px))}}
@media(max-width:760px){.play{padding-top:18px}.game-title{font-size:17px}.game-title span{font-size:13px}.play .platform{font-size:10px;margin-top:8px}.play .section-heading{margin-bottom:12px}}