[hidden]{display:none!important}
html{background:var(--paper)}
.online-demo{max-width:430px;margin:0 auto}
.online-demo header{max-width:430px;margin:auto}
.online-demo .brand small{align-self:flex-start;padding:2px 6px;border-radius:6px;background:#f6d94d;font-size:.7rem;font-weight:900;letter-spacing:.02em}
.online-demo[data-page="home"] .mode-icon svg{display:block;width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
@media(min-width:421px){
 .online-demo[data-page="home"] .home-menu{gap:10px}
 .online-demo[data-page="home"] .mode-card{padding:12px 11px;gap:9px}
 .online-demo[data-page="home"] .home-menu-half{grid-template-columns:auto minmax(0,1fr);align-items:center}
 .online-demo[data-page="home"] .home-menu-half>strong{display:none}
 .online-demo[data-page="home"] .home-menu-full{grid-template-columns:auto minmax(0,1fr) auto}
 .online-demo[data-page="home"] .home-menu-half .mode-icon{font-size:1.6rem}
 .online-demo[data-page="home"] .mode-card b{font-size:1.16rem}
 .online-demo[data-page="home"] .home-menu-half em{font-size:.82rem}
 .online-demo[data-page="home"] .mode-card em{line-height:1.3}
}
.online-demo{background:var(--paper)}.online-demo header{grid-template-columns:1fr auto}.online-demo header nav{display:none}.online-shell{position:relative;width:min(1080px,calc(100% - 28px));padding:0;margin:auto;z-index:1}.online-demo[data-page="home"]{max-width:430px;margin:0 auto}.online-demo[data-page="home"]::before{left:50%;right:auto;width:min(100%,430px);transform:translateX(-50%)}.online-demo[data-page="home"] header{max-width:430px;margin:auto}.online-demo[data-page="home"] .online-shell{width:calc(100% - 16px)}.online-demo .home{padding-top:3vh}.online-demo .hero-title{margin:0 auto 14px}.home-menu{grid-template-columns:repeat(2,minmax(0,1fr))}.home-footer-note{max-width:760px;margin:26px auto 0;padding:13px 16px 12px;border-radius:14px;background:rgba(23,22,18,.62);color:#fff;text-align:center;text-shadow:0 1px 3px #0007;box-shadow:0 2px 10px #0002}.home-footer-note p{margin:5px 0;font-size:.85rem;line-height:1.7}.home-footer-note .home-studio-name{font-size:.95rem;font-weight:900}.demo-footer{position:relative;text-align:center;margin:24px auto;max-width:460px;color:var(--muted);font-size:.8rem;line-height:1.7}.demo-footer p{font-size:.7rem}body[data-page="home"] .demo-footer>b{display:none}.demo-tabs{margin:0 0 24px}.demo-tabs .active{background:var(--ink);color:#fff}.puzzle-card{padding:0;font:inherit;text-align:inherit;cursor:pointer;width:100%}.demo-rulebook{display:grid;gap:8px}.demo-rulebook img{width:100%;height:auto}.demo-hint{font-size:.8rem;color:var(--muted);line-height:1.6}.online-game{max-width:760px;margin:auto;padding-top:22px}.online-stats>span{border:1px solid #d8d1b9}.online-stats span span{border:0;padding:0;background:transparent}.icon-button{border:var(--line)}.online-board{background:var(--light)}.demo-guide{border:var(--line);border-radius:14px;padding:14px;background:var(--light);box-shadow:var(--shadow);margin:0 0 12px}.demo-guide>div{display:flex;gap:8px;justify-content:space-between;align-items:center}.demo-guide p{margin:8px 0;line-height:1.65}.demo-guide small{font-weight:900}.demo-guide button{min-height:42px;padding:8px 12px;border:var(--line);border-radius:10px;background:var(--ink);color:white;font:inherit;font-weight:800;cursor:pointer}.demo-guide button:last-child{background:var(--light);color:var(--ink)}.guide-explanation{font-size:.85rem;color:var(--muted)}#lessonProgress{font-size:.8rem;font-weight:900}.online-controls{grid-template-columns:repeat(3,minmax(0,1fr))}.online-controls button{font-size:.8rem}.guide-destination{fill:transparent;stroke:#716b5e;stroke-width:4;stroke-dasharray:15 10;pointer-events:all;cursor:pointer}.guide-hand{font-size:56px;pointer-events:none}.online-board.is-demonstrating{pointer-events:none}.online-clear{z-index:30}.online-clear-card{background:var(--light);box-shadow:var(--shadow);border:var(--line);border-radius:16px;max-height:90dvh;overflow:auto}.online-clear-card #clearTitle{font-size:1.7rem;color:var(--ink)}.online-clear-card #onlineClearStars{display:block;color:var(--star);font-size:2rem}.online-clear-card p{font-size:.9rem;letter-spacing:0;line-height:1.6;margin:12px 0}.online-clear-card .button{display:flex}.online-clear-card .clear-actions{display:flex;flex-direction:column-reverse}.online-clear-card .clear-actions button:last-child{background:var(--ink);color:#fff}.online-clear-card .clear-actions button:first-child{background:var(--light)}.demo-share{display:block;padding:10px}.demo-text-button,.lesson-exit{border:0!important;background:transparent!important;font:inherit;text-decoration:underline;min-height:40px;padding:8px;cursor:pointer}.demo-help,.lesson-dialog{border:var(--line);border-radius:14px;background:var(--light);box-shadow:var(--shadow);width:min(460px,calc(100% - 24px));max-height:90dvh;padding:22px;line-height:1.7;overflow:auto}.demo-help::backdrop,.lesson-dialog::backdrop{background:#17161299}.lesson-dialog h2{font-size:1.45rem}.lesson-actions{display:flex;gap:10px;margin-top:22px}.lesson-actions button{flex:1}.demo-help .button{width:100%;margin:6px 0}button:disabled{opacity:.45}button:focus-visible,a:focus-visible{outline:3px solid #245b9a;outline-offset:3px}@media(max-width:420px){.online-demo[data-page="home"] .online-shell{width:calc(100% - 12px)}.home-footer-note{margin-top:22px;padding:12px 14px 11px;border-radius:12px}.online-shell{width:calc(100% - 20px)}.demo-guide{padding:10px}.demo-guide p{font-size:.85rem}.online-game{padding-top:12px}.online-controls{gap:5px}.online-controls button{font-size:.7rem}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}

.online-game:has(.demo-guide:not([hidden])) .online-instruction{display:none}
.demo-help .help-copy{white-space:pre-line}
.online-demo[data-page="list"]::before{content:none}
.online-stats #onlineKeyState{flex:1.35;font-size:.9rem;line-height:1.3}
.online-stats>.operations-stat{display:flex;flex:.85;align-items:center;justify-content:center;gap:4px;padding:4px 8px;border:1px solid #d8d1b9;border-radius:12px;background:rgba(255,255,255,.8);font-size:.75rem;font-weight:900}
.operations-stat span{flex:none;padding:0;border:0;background:transparent}
.operations-help{position:relative;flex:none}
.operations-help summary{display:grid;place-items:center;width:24px;height:24px;font:inherit;font-weight:900;cursor:help;list-style:none}
.operations-help summary span[aria-hidden]{display:grid;place-items:center;width:16px;height:16px;border:1px solid currentColor;border-radius:50%;font-size:.65rem;line-height:1}
.operations-help summary::-webkit-details-marker{display:none}
.online-stats .operations-tooltip{display:none;position:absolute;top:calc(100% + 8px);right:0;z-index:3;width:min(220px,calc(100vw - 24px));padding:8px 10px;border:2px solid var(--ink);border-radius:10px;background:var(--light);box-shadow:var(--shadow);font-size:.78rem;line-height:1.45;text-align:left;white-space:normal}
.operations-help[open] .operations-tooltip{display:block}

/* Keep the player site's visual language, with the requested demo layout. */
.online-demo .demo-edition{text-align:center;font-weight:900;font-size:1.5rem;margin:12px 0 24px}
.online-demo .home-menu-full{grid-column:1/-1}
.online-demo .home-menu-full>div{text-align:center}
.catalog-mode{margin:16px 0 24px}.catalog-mode .mode-page-title h2{font-size:1.65rem;margin:0}
.catalog-mode .mode-page-title img{width:60px;height:60px}
.catalog-mode .mode-page-heading{grid-template-columns:minmax(0,1fr) auto}
.catalog-mode .mode-page-heading .mode-page-title{min-width:0}
.catalog-mode .printable-puzzle-link{cursor:pointer;font:inherit;font-size:.78rem;font-weight:900;white-space:normal;text-align:center;max-width:150px}
.catalog-mode .puzzle-grid{display:grid;grid-template-columns:repeat(5,152px);overflow-x:auto;padding:8px 6px 16px;scroll-snap-type:x proximity;gap:10px}
.catalog-mode .puzzle-card{scroll-snap-align:start}
.catalog-mode .card-stars{gap:4px;padding:4px 4px 8px;font-size:1.8rem}
.catalog-mode .progress{margin-bottom:8px}
.catalog-mode .puzzle-card:disabled{opacity:1}
.online-demo .rules>h1{font-size:2rem}
.online-demo .rulebook-dialog{max-width:430px}
.online-demo .demo-help,.online-demo .lesson-dialog{width:min(430px,calc(100% - 24px))}
/* In-place gesture cues, no modal overlay or spotlight. */
.guided-game .special-ring,.guided-game .tile-action-outline{opacity:0!important}
.online-board .special-hit{r:var(--node-hit-radius,42px)}
.online-board .special-node .special-hit{fill:transparent}
.guide-target .special-hit{r:max(65px,var(--node-hit-radius,42px))}
.guide-cue{pointer-events:none;user-select:none}
.guide-dragging .guide-pointer{animation:guide-drag 2.4s ease-in-out infinite}
@keyframes guide-drag{0%,15%{transform:translate(0,0);opacity:1}75%,85%{transform:translate(var(--gesture-x),var(--gesture-y));opacity:1}100%{transform:translate(var(--gesture-x),var(--gesture-y));opacity:0}}
.guided-game #onlineUndo,.guided-game #onlineGame>.demo-hint{display:none}
.guided-game .online-controls{grid-template-columns:repeat(2,minmax(0,1fr))}
.lesson-transition [data-i18n="successCopy"],.lesson-transition [data-preorder],.lesson-transition .demo-hint,.lesson-transition #demoShare,.lesson-transition #onlineReplay{display:none!important}

.is-cat-animating .guide-cue,.is-cat-animating #onlineGuide,.is-dragging~.guide-cue,.online-board:has(.is-dragging) #onlineGuide{visibility:hidden}

/* Square board, sized to keep controls in the viewport. */
body.online-demo[data-page="online"]{height:100dvh;overflow:hidden;padding:64px 0 0}
body[data-page="online"] .demo-footer{display:none}
body[data-page="online"] .online-shell{width:100%;max-width:620px;height:100%;padding:0 8px}
body[data-page="online"] .online-game{display:flex;flex-direction:column;gap:8px;height:100%;padding:calc(12px + env(safe-area-inset-top)) 0 calc(8px + env(safe-area-inset-bottom));box-sizing:border-box}
body[data-page="online"] .online-topbar{grid-template-columns:44px minmax(0,1fr) 48px;gap:10px;margin:0;flex:none}
body[data-page="online"] .online-topbar p{font-size:.75rem;letter-spacing:0}
body[data-page="online"] .online-topbar h1{font-size:1.1rem;margin:2px 0 0}
body[data-page="online"] .best-box{height:44px;border-radius:12px}
body[data-page="online"] .best-box b{font-size:1.15rem}
body[data-page="online"] .online-stats{margin:0;flex:none}
body[data-page="online"] .online-stats>span{padding:4px 8px;font-size:.75rem}
body[data-page="online"] #onlineBoard{width:min(100%,calc(100dvh - 338px));height:auto;min-height:0;flex:none;aspect-ratio:1;align-self:center;border-radius:16px}
body[data-page="online"].guided-game #onlineBoard{width:min(100%,calc(100dvh - 234px))}
.online-loading{position:absolute;inset:0;z-index:4;display:grid;place-items:center;padding:20px;background:var(--light);font-size:1.1rem;font-weight:900;text-align:center}
body[data-page="online"] .online-instruction{flex:none;min-height:48px;margin:0;padding:8px 10px;box-sizing:border-box;border-radius:12px;font-size:.85rem;line-height:1.35;box-shadow:none}
body[data-page="online"] .demo-guide{position:absolute;z-index:2;display:block;min-height:0;margin:0;padding:60px 0 0;border:0;background:none;box-shadow:none;pointer-events:none;user-select:none}
.demo-guide .guide-copy{display:flex;justify-content:center;align-items:center;text-align:center;gap:10px;padding:10px 12px;border:2px solid #124b92;border-radius:12px;background:#fffef8;color:#122f55;box-shadow:0 3px 12px #122f5533;font-size:14px;line-height:1.4}
.online-board svg.guide-pointer{position:absolute;top:12px;left:var(--pointer-left);width:32px;height:40px;animation:guide-bob 1.6s ease-in-out infinite;overflow:visible;filter:drop-shadow(0 2px 2px #122f5577)}
.guide-pointer path{fill:#267bea;stroke:#fff;stroke-width:5;stroke-linejoin:round;paint-order:stroke fill}
body[data-page="online"] .demo-guide p{margin:0;font-size:inherit;line-height:inherit;font-weight:800}
body[data-page="online"] .online-controls{flex:none;margin:0;gap:6px}
body[data-page="online"] .online-controls button{min-height:44px;font-size:.75rem;padding:4px;border-radius:12px}
.online-answer{position:relative;flex:none;z-index:3;overflow:visible}
.online-answer>button{min-height:42px;font:inherit;font-size:.85rem;font-weight:900;cursor:pointer}
.online-answer>div{position:absolute;left:0;right:0;bottom:calc(100% + 6px);max-height:min(35dvh,240px);overflow-y:auto;padding:12px 14px;border:var(--line);border-radius:12px;background:var(--light);box-shadow:var(--shadow)}
.guided-game .online-answer{display:none}
body[data-page="online"] #onlineGame>.demo-hint{display:none}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.online-clear-card{padding:18px 16px}.online-clear-card p{margin:8px 0}.online-clear-card strong{margin-bottom:10px}
.online-clear-card .clear-actions{gap:12px}
.online-clear-card [data-preorder="clear"]{margin-top:12px}
.online-clear-card [data-i18n="successCopy"]{display:none}
.online-clear{padding:12px}.online-clear-card{max-height:calc(100dvh - 24px)}
@media(max-height:500px) and (orientation:landscape){
 body.online-demo[data-page="online"],body.online-demo[data-page="online"] header{max-width:none}
 body[data-page="online"] .online-shell{max-width:760px;padding-left:max(8px,env(safe-area-inset-left));padding-right:max(8px,env(safe-area-inset-right))}
 body[data-page="online"] .online-game{display:grid;grid-template-columns:minmax(0,1fr) 210px;grid-template-rows:auto auto 1fr auto auto}
 body[data-page="online"] #onlineBoard,body[data-page="online"].guided-game #onlineBoard{grid-column:1;grid-row:1/6;width:min(100%,calc(100dvh - 88px));height:auto;align-self:start;justify-self:center}
 body[data-page="online"] .online-topbar,body[data-page="online"] .online-stats,body[data-page="online"] .online-instruction,body[data-page="online"] .online-controls,body[data-page="online"] .online-answer{grid-column:2}
 body[data-page="online"] .online-controls{grid-template-columns:repeat(3,minmax(0,1fr));grid-row:4}
 body[data-page="online"] .online-answer{grid-row:5}
 body[data-page="online"].guided-game .online-controls{grid-template-columns:repeat(2,minmax(0,1fr))}
 body[data-page="online"] .online-game:has(.demo-guide:not([hidden])) .online-instruction{display:grid}
 body[data-page="online"] .demo-guide .guide-copy{display:none}
}

@keyframes guide-bob{0%,100%{transform:translateY(0)}50%{transform:translateY(4px)}}
.online-board .guide-dragging svg.guide-pointer{animation:guide-drag 2.4s ease-in-out infinite}
/* Reuse the player site's tutorial cards, over the actual board/catalog. */
.lesson-intro{position:fixed;inset:0;margin:auto;width:min(430px,calc(100vw - 24px));height:fit-content;max-height:calc(100dvh - 24px)}
.lesson-exit-confirm{position:fixed;inset:0;margin:auto;width:min(430px,calc(100vw - 24px));height:fit-content}
.lesson-exit-confirm::backdrop{background:#171612b8}
.lesson-intro::backdrop{background:#171612b8}
.lesson-intro .intro-visual{display:flex;justify-content:center;margin:14px 0}
.lesson-intro .intro-visual img{width:100%;height:auto;max-height:30dvh;object-fit:contain}
.lesson-intro .tutorial-actions{display:flex;flex-wrap:nowrap}
.lesson-intro .tutorial-actions button{flex:1 1 0;width:auto;min-width:0}
.lesson-intro #introTitle{outline:none}
body:has(#demoIntro[open]) #onlineGuide{visibility:hidden}
.catalog-guide-card{width:min(360px,calc(100vw - 24px));padding:16px}
.catalog-guide-card h2{font-size:1.25rem}
.catalog-guide-card p{font-size:.9rem;line-height:1.5}
@media(max-height:500px) and (orientation:landscape){.lesson-intro{display:grid;grid-template-columns:42% 1fr;gap:8px 16px;padding:14px}.lesson-intro:not([open]){display:none}.lesson-intro .tutorial-progress,.lesson-intro .tutorial-actions{grid-column:1/-1}.lesson-intro h2,.lesson-intro p{grid-column:2;margin:0;font-size:.95rem}.lesson-intro .intro-visual{grid-column:1;grid-row:2/4;margin:0}.lesson-intro .intro-visual img{max-height:35dvh}.lesson-intro .tutorial-actions{margin-top:4px}}

@media(prefers-reduced-motion:reduce){.online-board svg.guide-pointer,.online-board .guide-dragging svg.guide-pointer{animation:none}}