.subtraction-safari{--hot:#61ca8a;--deep:#26754e;--sky:#86ddf6}.subtraction-safari-scene{--safari-branch-y:46.5%;--safari-jump-peak-y:31.5%;position:absolute;inset:0;min-height:100%;overflow:hidden;background:#8cdcf1;isolation:isolate;touch-action:manipulation}.subtraction-safari-backdrop{position:absolute;z-index:0;inset:0;overflow:hidden;pointer-events:none;background:#73cbe8 url(/games/grade-1/math/subtraction-safari/assets/backgrounds/jungle-vine-route-4k.webp) 50%/cover no-repeat;transform:translateZ(0) scale(1.002);transform-origin:center;backface-visibility:hidden}.subtraction-safari-sunwash{position:absolute;z-index:2;inset:0;pointer-events:none;background:radial-gradient(circle at 51% 42%,#fff8c757 0 9%,transparent 30%),linear-gradient(180deg,#ffffff12,transparent 43%,#194d3721)}.subtraction-safari-route-markers{position:absolute;z-index:7;inset:0;pointer-events:none}.subtraction-safari-route-markers i{position:absolute;top:var(--safari-branch-y);width:clamp(.55rem,1.3vw,.9rem);aspect-ratio:1;border-radius:50%;background:#fff2b86b;box-shadow:0 0 10px #fff2ba9c;transform:translate(-50%,-50%);transition:background .25s ease,box-shadow .25s ease,scale .25s ease,opacity .25s ease}.subtraction-safari-route-markers i.is-reached{background:#ffe167;box-shadow:0 0 0 4px #fff2a942,0 0 20px #fff0a9;scale:1.22}.subtraction-safari-route-markers i.is-current{opacity:0}.subtraction-safari-explorer{position:absolute;z-index:10;top:var(--safari-branch-y);width:clamp(9rem,17vw,12rem);aspect-ratio:1;transform:translate(-50%,-94%);transform-origin:50% 94%;will-change:left,top}.subtraction-safari-explorer.is-jumping{z-index:12;width:clamp(9rem,17vw,12rem);will-change:left,top}.subtraction-safari-explorer-bob,.subtraction-safari-monkey{width:100%;height:100%;transform-origin:50% 94%}.subtraction-safari-explorer.is-jumping .subtraction-safari-explorer-bob{transform-origin:50% 94%}.subtraction-safari-monkey img{object-fit:contain;object-position:center bottom;filter:drop-shadow(0 10px 7px #243d314d)}.subtraction-safari-explorer.is-jumping .subtraction-safari-monkey img{object-position:center;filter:drop-shadow(0 12px 8px #23392f55)}.subtraction-safari-explorer.is-jumping .subtraction-safari-shadow{opacity:0}.subtraction-safari-shadow{position:absolute;right:14%;bottom:6%;left:14%;height:11%;border-radius:50%;background:#2f473a4a;filter:blur(5px)}.subtraction-safari-treasure{position:absolute;z-index:9;right:2.5%;bottom:44%;width:clamp(7rem,14vw,10rem);aspect-ratio:4/3;pointer-events:none}.subtraction-safari-chest{width:100%;height:100%}.subtraction-safari-chest img{object-fit:contain;filter:drop-shadow(0 11px 8px #342f2547)}.subtraction-safari-treasure-glow{position:absolute;inset:-35%;border-radius:50%;background:radial-gradient(circle,#fff5a89c 0,#ffe37940 35%,transparent 68%);animation:subtraction-treasure-glow 2.5s ease-in-out infinite}.subtraction-safari-equation{position:absolute;z-index:13;top:17%;left:50%;display:flex;align-items:center;justify-content:center;gap:clamp(.45rem,2vw,1.15rem);min-width:min(31rem,72%);min-height:6.7rem;padding:.55rem 1.35rem;border:0;border-radius:2.4rem;color:#49365f;background:#fffbe6d9;box-shadow:0 14px 32px #254e3b35;font-size:clamp(3.1rem,7vw,5.35rem);font-weight:1000;line-height:1;transform:translateX(-50%);backdrop-filter:blur(10px) saturate(1.08)}.subtraction-safari-equation b{color:#ef746f}.subtraction-safari-equation b:nth-of-type(2){color:#755fc1}.subtraction-safari-equation strong{min-width:1em;color:#2d9e61;text-align:center}.subtraction-safari-answers{position:absolute;z-index:14;right:4%;bottom:2.6%;left:4%;display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(.55rem,1.4vw,1rem)}.subtraction-safari-answer{min-height:clamp(4.9rem,9vw,6.45rem);cursor:pointer;border:0;border-radius:2rem;color:#fff;font:1000 clamp(2.8rem,6vw,4rem)/1 system-ui,sans-serif;text-shadow:0 3px 0 #3c3b4738;box-shadow:inset 0 4px 4px #ffffff82,inset 0 -7px 0 #00000017,0 8px 0 var(--answer-shadow),0 14px 22px #274e3430;transition:filter .16s ease,transform .12s ease;-webkit-tap-highlight-color:transparent}.subtraction-safari-answer.tone-1{--answer-shadow:#b95375;background:linear-gradient(#ff9db9,#eb668c)}.subtraction-safari-answer.tone-2{--answer-shadow:#348fa4;background:linear-gradient(#80e2ed,#43b9cf)}.subtraction-safari-answer.tone-3{--answer-shadow:#b97f26;background:linear-gradient(#ffe47b,#edb63f)}.subtraction-safari-answer.tone-4{--answer-shadow:#664cac;background:linear-gradient(#b7a0f3,#7d64d2)}.subtraction-safari-answer:hover{filter:brightness(1.06);transform:translateY(-3px)}.subtraction-safari-answer:active{transform:translateY(5px) scale(.98);box-shadow:inset 0 4px 4px #ffffff82,inset 0 -4px 0 #00000017,0 3px 0 var(--answer-shadow)}.subtraction-safari-answer:focus-visible{outline:5px solid #fff;outline-offset:3px}.subtraction-safari-answer.is-correct{--answer-shadow:#26894e;background:linear-gradient(#82e4a8,#45c479)}.subtraction-safari-answer.is-wrong{--answer-shadow:#aa4650;background:linear-gradient(#ff9a9d,#e76b74)}.subtraction-safari-feedback{position:absolute;z-index:15;right:1rem;bottom:calc(2.6% + clamp(5.7rem, 10vw, 7.4rem));margin:0;padding:.45rem .9rem;border-radius:999px;color:#fff;background:#315b47c9;box-shadow:0 6px 15px #25493635;font-size:clamp(.8rem,2vw,1rem);font-weight:950;backdrop-filter:blur(7px)}.subtraction-safari .prek-screen{min-height:clamp(590px,calc(100svh - 156px),760px)}.subtraction-safari .prek-finish-emoji.has-image{width:165px!important;height:165px!important;overflow:visible!important}.subtraction-safari .prek-finish-emoji img{object-fit:contain;object-position:center}@keyframes subtraction-treasure-glow{50%{opacity:.58;transform:scale(1.08)}}@media (max-width:700px){.subtraction-safari-scene{--safari-branch-y:43.5%;--safari-jump-peak-y:32.5%}.subtraction-safari-backdrop{background-image:url(/games/grade-1/math/subtraction-safari/assets/backgrounds/jungle-vine-route-mobile-3k.webp);background-position:50%}.subtraction-safari-equation{top:25%;min-width:min(25rem,88%);min-height:5.7rem;font-size:clamp(2.7rem,11vw,4.15rem)}.subtraction-safari-explorer,.subtraction-safari-explorer.is-jumping{width:clamp(7.2rem,31vw,9rem)}.subtraction-safari-treasure{right:-1%;bottom:47%;width:clamp(5.8rem,24vw,7.3rem)}.subtraction-safari-answers{right:2.5%;bottom:2.2%;left:2.5%;grid-template-columns:repeat(2,1fr);gap:.55rem}.subtraction-safari-answer{min-height:4.35rem;border-radius:1.5rem;font-size:2.7rem}.subtraction-safari-feedback{right:50%;bottom:28%;width:max-content;max-width:90%;transform:translateX(50%)}.subtraction-safari .prek-screen{min-height:calc(100svh - 126px)}}@media (max-height:720px) and (min-width:701px){.subtraction-safari-scene{--safari-jump-peak-y:34%}.subtraction-safari-equation{top:17%;min-height:5.4rem;font-size:3.65rem}.subtraction-safari-explorer{width:9rem}.subtraction-safari-treasure{bottom:42%;width:7.5rem}.subtraction-safari-answer{min-height:4.75rem}}@media (prefers-reduced-motion:reduce){.subtraction-safari-treasure-glow{animation:none}}