:root{color-scheme:light;--ground:#f5f7f6;--ink:#142620;--green:#185c43;--yellow:#f1d65a;--muted:#4d6258;--line:#ced8d2;--white:#fff;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--ground)}
*{box-sizing:border-box}body{margin:0}a{color:var(--green);text-underline-offset:4px}a:hover{text-decoration-thickness:2px}button,a,summary{-webkit-tap-highlight-color:transparent}button,summary{cursor:pointer}button{font:inherit}button:disabled{cursor:default}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #075bc5;outline-offset:4px}svg{width:20px;height:20px;flex:none}p{margin:0 0 20px}h1,h2,h3{margin-top:0}h2{font-size:28px;line-height:1.18;letter-spacing:-.7px}h3{font-size:18px;line-height:1.5}a,button,summary{touch-action:manipulation}[hidden]{display:none!important}
.skip-link{position:fixed;left:12px;top:-80px;padding:12px 20px;z-index:10;background:#fff}.skip-link:focus{top:12px}.container,.header-inner,.footer-inner{width:calc(100% - 32px);max-width:1120px;margin-inline:auto}.site-header{border-bottom:1px solid var(--line)}.header-inner{height:54px;display:flex;align-items:center;justify-content:space-between;border-bottom:3px solid var(--green);position:relative}.brand{display:inline-flex;align-items:center;gap:9px;font-size:22px;font-weight:900;letter-spacing:-.8px;color:var(--ink);text-decoration:none;min-height:44px}.brand svg{width:26px;height:26px}.desktop-nav{display:none}.mobile-menu>summary{display:flex;align-items:center;justify-content:center;width:44px;height:44px;list-style:none}.mobile-menu>summary::-webkit-details-marker{display:none}.mobile-menu nav{position:absolute;right:0;top:53px;z-index:5;background:var(--ground);border:1px solid var(--line);box-shadow:0 8px 16px #14262016;padding:10px;min-width:220px}.mobile-menu nav a{display:block;padding:14px;text-decoration:none;font-weight:700}.breadcrumbs{font-size:11px;min-height:32px;display:flex;align-items:center;margin:8px 0 12px}.breadcrumbs ol{display:flex;list-style:none;gap:8px;flex-wrap:wrap;padding:0;margin:0;align-items:center}.breadcrumbs a{display:inline-flex;align-items:center;min-height:44px}.breadcrumbs li{display:flex;align-items:center;gap:8px}.breadcrumbs li+li:before{content:'/';color:var(--muted)}.breadcrumbs [aria-current]{color:var(--ink)}
.page-heading{max-width:760px;margin:0 auto 20px}.page-heading h1{font-size:52px;font-weight:900;font-style:italic;letter-spacing:-2.6px;line-height:1;margin-bottom:16px}.intro{font-size:16px;line-height:1.5;margin-bottom:0}.game-area{max-width:960px;margin-inline:auto}.game-shell{aspect-ratio:16/9;position:relative;display:grid;place-items:center;background:#173d3b;border-radius:10px;overflow:hidden;isolation:isolate}.game-shell>img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover}.btn-play{position:absolute;display:flex;align-items:center;justify-content:center;gap:10px;background:var(--yellow);color:var(--ink);font-size:20px;line-height:1.2;font-weight:800;min-height:54px;border:1px solid #e7c746;border-radius:8px;padding:15px 26px;box-shadow:0 4px 18px #0004;transition:transform .15s}.btn-play:hover{transform:translateY(-2px);background:#f7df75}.btn-play svg{width:19px;height:19px}.game-shell.is-playing{aspect-ratio:auto}.game-shell iframe{display:block;width:100%;height:min(70dvh,620px);border:0}.game-tools{display:flex;flex-direction:column;gap:10px;padding-block:12px}.game-actions{display:flex;gap:8px;flex-wrap:wrap}.secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:9px 12px;border:1px solid var(--green);border-radius:6px;color:var(--ink);background:transparent;text-decoration:none;font-size:13px;font-weight:700}.secondary:hover{background:#e5eee9}.landscape{font-size:12px;line-height:1.5;font-style:italic;color:var(--muted);margin:0}.game-status{font-size:14px;line-height:1.6;background:#e6eee9;padding:14px 16px;border-radius:6px}.game-shell:fullscreen{width:100%;height:100%;border-radius:0;background:#142620;display:flex;align-items:center}.game-shell:fullscreen iframe{width:100%;height:100dvh}
.article{max-width:760px;margin:42px auto 0;font-size:17px;line-height:1.75}.article>section{margin-bottom:42px}.article h2{margin-bottom:18px}.article h3{margin-bottom:10px}.article a{font-weight:600;display:inline-block;min-height:44px;vertical-align:baseline}.practice-list{padding-left:25px}.practice-list li{padding-left:8px;margin-bottom:20px}.practice-list li::marker{color:var(--green);font-weight:800}.faq>section{border-top:1px solid var(--line);padding:22px 0 2px}.faq h3{font-size:17px}.related{max-width:960px;margin:48px auto 64px;padding-top:28px;border-top:2px solid var(--green)}.section-heading{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin-bottom:20px}.section-heading h2{margin:0;font-size:25px}.section-heading>a{display:inline-flex;align-items:center;gap:8px;min-height:44px;font-size:14px}.game-row{display:flex;align-items:center;gap:18px;padding:20px 0;text-decoration:none;color:var(--ink);border-top:1px solid var(--line)}.row-number{font-size:13px;font-weight:700;color:var(--muted)}.game-row strong{font-size:19px;line-height:1.4}.game-row small{display:block;font-size:14px;color:var(--muted);margin-top:5px;line-height:1.5}.game-row>svg{margin-left:auto;color:var(--green)}.game-row:hover strong{text-decoration:underline;text-underline-offset:4px}.site-footer{background:#123d2e;color:#fff;padding:30px 0}.site-footer .brand{color:#fff}.site-footer nav{display:flex;flex-wrap:wrap;column-gap:24px;margin-top:20px}.site-footer nav a,.footer-bottom>a{display:inline-flex;align-items:center;min-height:44px;color:#fff;text-decoration:none;font-size:13px}.site-footer nav a:hover{text-decoration:underline}.footer-bottom{margin-top:22px;padding-top:20px;border-top:1px solid #668978;display:flex;gap:24px;justify-content:space-between}.footer-bottom p{font-size:12px;line-height:1.7;margin:0;color:#d2e1d7;max-width:660px}.guide .page-heading{margin-top:26px}.guide .page-heading h1{font-size:43px;line-height:1.05;letter-spacing:-1.8px}.guide .article{margin-top:36px}.external-play{display:flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:14px 22px;margin:24px auto;max-width:760px;background:var(--yellow);border:1px solid #e7c746;border-radius:6px;color:var(--ink);font-weight:700;text-decoration:none}.back-links{max-width:760px;margin:10px auto 56px;display:flex;flex-wrap:wrap;gap:12px 28px;border-top:1px solid var(--line);padding-top:20px}.back-links a{min-height:44px;display:inline-flex;align-items:center;font-weight:700}.source{color:var(--muted);font-size:13px;padding-top:20px;border-top:1px solid var(--line)}.table-scroll{max-width:100%;overflow-x:auto;margin:24px 0}table{border-collapse:collapse;width:100%;font-size:15px;line-height:1.6;text-align:left}th,td{padding:14px 12px;border-bottom:1px solid var(--line);vertical-align:top}th{font-size:12px;letter-spacing:.5px;text-transform:uppercase;background:#e7eeea}td:first-child{font-weight:600}kbd{font:600 13px Arial,sans-serif;display:inline-block;min-width:26px;text-align:center;border:1px solid #b6c4bb;border-bottom-width:3px;border-radius:4px;background:#fff;padding:0 6px}.ad-slot{min-height:90px;width:100%}
@media(min-width:768px){.container,.header-inner,.footer-inner{width:calc(100% - 80px)}.header-inner{height:78px}.brand{font-size:27px}.brand svg{width:30px;height:30px}.desktop-nav{display:flex;gap:30px}.desktop-nav a{display:inline-flex;align-items:center;min-height:44px;font-size:14px;font-weight:700;color:var(--ink);text-decoration:none}.desktop-nav a:hover{color:var(--green);text-decoration:underline}.mobile-menu{display:none}.breadcrumbs{margin:14px 0 24px;font-size:12px}.page-heading{margin-bottom:28px}.page-heading h1{font-size:72px;letter-spacing:-3.6px;margin-bottom:20px}.intro{font-size:18px;line-height:1.65}.game-shell{border-radius:12px}.btn-play{font-size:24px;min-height:64px;padding:18px 34px}.game-tools{flex-direction:row;justify-content:space-between;align-items:center}.secondary{font-size:14px;padding:10px 18px}.landscape{font-size:13px}.article{font-size:18px;line-height:1.65;margin-top:54px}.article>section{margin-bottom:48px}h2{font-size:31px;letter-spacing:-.8px}.faq h3{font-size:18px}.section-heading h2{font-size:30px}.related{margin-top:64px;margin-bottom:80px}.game-row{padding:24px 0;gap:26px}.game-row strong{font-size:22px}.site-footer{padding:40px 0}.guide .page-heading{margin-top:36px}.guide .page-heading h1{font-size:64px;letter-spacing:-3px}.guide .article{margin-top:48px}.external-play{justify-content:flex-start}}
.skip-link{min-height:44px}.breadcrumbs a{min-width:44px}.article a{align-content:center;vertical-align:middle}.site-footer{background:var(--ink)}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* Match the checked design canvas while keeping article measure readable. */
:root{--muted:#485c52}.site-header{border-bottom:2px solid var(--green)}.header-inner{border-bottom:0}.breadcrumbs{margin-bottom:6px}.home .page-heading{max-width:960px}.home .intro{max-width:760px}.secondary{border-color:#a5b8ad;font-weight:400}.landscape{font-style:normal}.btn-play{padding:14px 22px}.article{font-size:16px;line-height:1.5}
@media(min-width:768px){.breadcrumbs{max-width:960px;margin:4px auto 10px}.btn-play{font-size:22px;padding:17px 28px}.article{font-size:18px;line-height:1.65}}

/* v1.2: homepage identity and native, keyboard-accessible guide disclosures. */
.home .page-heading{margin-top:28px}.desktop-nav{align-items:center}.desktop-nav>a{min-width:44px;justify-content:center}.turball-menu{position:relative}.turball-menu>summary{display:flex;align-items:center;gap:8px;min-height:44px;min-width:44px;padding:10px;list-style:none;font-size:14px;font-weight:700}.turball-menu>summary::-webkit-details-marker{display:none}.turball-menu[open]>summary{color:var(--green)}.turball-submenu{position:absolute;right:0;top:100%;z-index:6;min-width:240px;padding:8px;background:var(--ground);border:1px solid var(--line);border-radius:6px;box-shadow:0 8px 16px #14262016}.desktop-nav .turball-submenu a{display:flex;padding:12px;white-space:nowrap}.turball-submenu a:hover{background:#e5eee9}.mobile-menu .turball-menu>summary{justify-content:space-between;padding:14px}.mobile-menu .turball-submenu{position:static;min-width:0;padding:0 0 0 12px;border:0;border-left:2px solid var(--line);border-radius:0;box-shadow:none}.mobile-menu>nav{width:280px;max-width:calc(100vw - 32px)}
@media(min-width:768px){.home .page-heading{margin-top:38px}}

/* v1.3: keep play, help and recovery together, including in fullscreen. */
.game-launcher{position:absolute;inset:0;z-index:1;display:grid;place-items:center;overflow:hidden;background:#173d3b}
.launcher-background{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:blur(7px) brightness(.42);transform:scale(1.05);pointer-events:none}
.launcher-card{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:12px;max-width:100%;max-height:100%;overflow:auto;padding:12px}
.launcher-thumb{display:block;width:224px;max-width:100%;height:auto;aspect-ratio:16/9;object-fit:contain;border-radius:8px;background:#173d3b;color:#fff}
.launcher-card .btn-play{position:static;min-height:52px;padding:12px 24px;font-size:20px}
.loading-label{margin:0;color:#fff;font-size:14px;line-height:20px}
.launcher-card .show-game{min-height:44px;background:#f5f7f6;border-color:#fff;color:var(--ink)}
@media(max-width:600px){.launcher-card{gap:8px;padding:8px}.launcher-thumb{width:120px}.launcher-card .btn-play{min-height:44px;padding:10px 20px;font-size:18px}}
@media(min-width:601px) and (max-height:400px){.launcher-thumb{width:176px}}
.player{border:1px solid var(--line);border-radius:10px;background:var(--white)}
.player .game-shell{border-radius:9px 9px 0 0}.btn-play{text-decoration:none}
.player-tools{position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:6px;padding:6px}
.player-tools .secondary{padding:9px 8px;font-size:13px;gap:4px;white-space:nowrap}
.player-tools .secondary svg{width:16px;height:16px}
.quick-controls>summary{list-style:none}.quick-controls>summary::-webkit-details-marker{display:none}
.quick-controls[open]>summary{background:#e5eee9;border-color:var(--green)}
.controls-popover{position:absolute;z-index:4;left:8px;bottom:calc(100% + 8px);width:min(440px,calc(100% - 16px));max-height:min(60dvh,420px);overflow:auto;overscroll-behavior:contain;background:var(--white);border:1px solid var(--line);border-radius:8px;padding:16px;box-shadow:0 8px 28px #14262033}
/* Inline help expands below its unchanged button row and scrolls with the game. */
.player:not(.is-expanded):not(:fullscreen) .player-tools{display:grid;grid-template-columns:minmax(0,max-content) minmax(0,max-content) minmax(0,1fr);align-items:start}
.player:not(.is-expanded):not(:fullscreen) .quick-controls{display:contents}
.player:not(.is-expanded):not(:fullscreen) .quick-controls[open]::details-content{display:contents}
.player:not(.is-expanded):not(:fullscreen) .quick-controls>summary{grid-column:1;grid-row:1}
.player:not(.is-expanded):not(:fullscreen) #fullscreenBtn{grid-column:2;grid-row:1}
.player:not(.is-expanded):not(:fullscreen) .player-tools .secondary{white-space:normal;min-width:0;overflow-wrap:anywhere}
.player:not(.is-expanded):not(:fullscreen) .player-tools .secondary span{min-width:0}
.player:not(.is-expanded):not(:fullscreen) .controls-popover{position:static;grid-column:1/-1;grid-row:2;width:100%;min-width:0;box-shadow:none}
.quick-controls:not([open])>.controls-popover{display:none}
.control-list{list-style:none;padding:0;margin:12px 0 24px}
.control-list li{display:grid;grid-template-columns:minmax(0,1fr) 12px minmax(0,1fr);gap:10px;align-items:baseline;padding:12px 0;border-bottom:1px solid var(--line)}
.control-keys{font-size:.9em;line-height:1.6}.control-equals{color:var(--muted)}
.controls-popover .control-list{font-size:14px;line-height:1.4;margin:0 0 12px}
.controls-popover .control-list li{padding:9px 0;gap:8px}
.controls-note{font-size:13px;line-height:1.5;color:var(--muted);margin:0}
.controls-popover:focus-visible{outline:3px solid #075bc5;outline-offset:-3px}
.controls-content>details{border-top:1px solid var(--line)}
.controls-content>details>summary{min-height:44px;display:list-item;align-content:center;font-size:14px;font-weight:700;cursor:pointer;margin-left:16px}
.controls-content h3{font-size:15px;line-height:1.4;margin:16px 0 4px}
.controls-content .controls-note{margin:8px 0 12px}
.controls-content .control-settings{padding-top:12px;border-top:1px solid var(--line)}
.game-facts{margin:0 0 16px;font-size:15px;line-height:1.5}
.game-facts>div{display:grid;grid-template-columns:100px minmax(0,1fr);gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}
.game-facts dt{font-weight:700}.game-facts dd{margin:0}.game-facts dd span{color:var(--muted);font-size:13px}
.home .practice-list li{margin-bottom:10px}
.player-help{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:0 16px;padding-top:4px}
.game-help{font-size:13px;line-height:1.6}.game-help>summary{min-height:44px;align-content:center;color:var(--green)}
.game-help p{max-width:620px;margin:0 0 12px}
.game-status{margin:0;border-radius:0 0 8px 8px}
.article h2{scroll-margin-top:24px}.faq>details{border-top:1px solid var(--line)}
.faq summary{min-height:44px;padding:18px 0;font-weight:700;line-height:1.5}.faq details>p{padding:0 0 8px}
.back-to-game{display:flex;align-items:center;min-height:44px;width:fit-content;max-width:100%;margin:0 auto 40px;font-weight:700}
@media(min-width:768px){.player-tools .secondary{font-size:14px;padding:9px 14px}.player-tools{padding:10px;gap:10px}.controls-popover{left:10px}}
/* v1.4: keep a mobile game session in place while giving it the viewport. */
.player.is-expanded,.player:fullscreen{position:fixed;inset:0;z-index:20;width:100%;height:100vh;height:100dvh;max-width:none;display:flex;flex-direction:column;overflow:hidden;border:0;border-radius:0;background:var(--white);padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}
.player.is-expanded .game-shell,.player:fullscreen .game-shell{flex:1;min-height:0;aspect-ratio:auto;border-radius:0;display:block}
.player.is-expanded iframe,.player:fullscreen iframe{height:100%!important}
.player.is-expanded .player-tools,.player:fullscreen .player-tools{order:-2;flex:none;flex-wrap:nowrap;gap:6px;padding:5px 8px;min-height:54px;background:var(--ground);border-bottom:1px solid var(--line);z-index:2}
.player.is-expanded .player-tools .secondary,.player:fullscreen .player-tools .secondary{font-size:13px;padding:8px;gap:4px;min-width:44px;min-height:44px;line-height:1.2}
.player.is-expanded #fullscreenBtn,.player:fullscreen #fullscreenBtn{margin-left:auto}
.player.is-expanded #resumeBtn,.player:fullscreen #resumeBtn{display:none}
.player.is-expanded .controls-popover,.player:fullscreen .controls-popover{left:8px;top:100%;bottom:auto;max-height:calc(100vh - 72px);max-height:calc(100dvh - 72px - env(safe-area-inset-top) - env(safe-area-inset-bottom));overscroll-behavior:contain}
.player.is-expanded .game-status,.player:fullscreen .game-status{order:-1;flex:none;max-height:30dvh;overflow:auto;padding:8px 12px;border-radius:0;font-size:13px;line-height:1.4;overscroll-behavior:contain}
.player.is-expanded button:focus-visible,.player:fullscreen button:focus-visible{outline-offset:-3px}
.player{position:relative}#resumeBtn{position:absolute;top:8px;left:8px;z-index:1;background:var(--yellow);box-shadow:0 2px 8px #14262033}
.game-status{position:relative;min-height:52px}.game-status,.player.is-expanded .game-status,.player:fullscreen .game-status{padding-right:56px}
.dismiss-status{position:absolute;right:4px;top:4px;width:44px;height:44px;display:flex;align-items:center;justify-content:center;border:1px solid transparent;border-radius:6px;background:transparent;color:var(--ink);font-size:24px;line-height:1}
.dismiss-status:hover{background:#d3e1d8}.dismiss-status:focus-visible{outline-offset:-3px}

/* v1.10: recovery stays outside the game and never navigates to its origin. */
.embed-feedback{position:relative;background:#e6eee9;border-top:1px solid var(--line);padding:14px 56px 14px 14px;font-size:14px;line-height:1.5}
.embed-feedback p{margin:0 0 8px}.embed-feedback .feedback-note{font-size:12px;color:var(--muted)}
.feedback-actions{display:flex;flex-wrap:wrap;gap:8px}.feedback-actions .secondary{white-space:normal;text-align:center}
.player.is-expanded .embed-feedback,.player:fullscreen .embed-feedback{order:-1;flex:none;max-height:30dvh;overflow:auto;overscroll-behavior:contain;padding-top:8px;padding-bottom:8px}
.catalog-card{border-top:1px solid var(--line);padding:24px 0;margin:0}.catalog-card h3{font-size:23px}.catalog-device{font-size:14px;color:var(--muted)}
.catalog-card .catalog-play{background:var(--yellow);border-color:#e7c746;min-height:48px;font-weight:700;max-width:100%;white-space:normal}
.catalog-player{margin-top:16px;background:#173d3b;aspect-ratio:16/9}.catalog-player iframe{display:block;border:0;width:100%;height:100%}
.catalog-card .source{border:0;padding:0;margin:8px 0 0}.catalog-card .control-list{font-size:15px}
.site-footer nav a{min-width:44px;justify-content:center}
/* Native desktop and mobile menus are independent; no script controls their state. */
.turball-submenu{margin:0;list-style:none}
.turball-submenu li{margin:0;padding:0}
.turball-menu>summary,.mobile-menu>summary{cursor:pointer}
.mobile-menu nav a{display:flex;align-items:center;min-height:44px;min-width:44px;padding:12px 14px;font-size:14px;line-height:20px}
.mobile-menu nav a.brand{gap:9px;letter-spacing:0}
.mobile-menu nav a.brand svg{width:24px;height:24px;flex-shrink:0}
.mobile-menu nav a:hover{color:var(--green);text-decoration:underline}
@media(max-width:1024px){.catalog-card[data-mobile="true"] .catalog-player.touch-capable{aspect-ratio:auto;height:max(240px,80dvh)}}