.teen-bus{--hot:#f3a344;--deep:#aa5a32;--ink:#4c4767;--sky:#96dcf5;background:linear-gradient(180deg,#a8e2f8,#e1f5fd 65%,#87ca70 0)}.teen-bus .prek-immersive-heading p{color:#9b5636}.teen-bus.is-immersive .prek-machine{background:#f1ad4c;box-shadow:0 10px 0 #a95a32,0 22px 42px #59345145}.teen-bus.is-immersive .prek-prompt,.teen-bus.is-immersive .prek-status{background:#fffbedeb;box-shadow:0 7px 20px #4e3b3433}.teen-bus.is-immersive .prek-stars svg{color:#b5a997;fill:#eee5d6}.teen-bus.is-immersive .prek-stars svg.is-done{color:#d28c15;fill:#ffdc55}.teen-bus.is-immersive .prek-stars svg.is-current{color:#b65f30;fill:#ffae55}.teen-bus-scene{position:absolute;z-index:0;inset:0;min-height:0;overflow:hidden;background:#9adff5;isolation:isolate}.teen-bus-background{z-index:-5;object-fit:cover;object-position:center;image-rendering:auto;transform:translateZ(0) scale(1.002);backface-visibility:hidden}.teen-bus-light{position:absolute;z-index:-4;inset:0;pointer-events:none;background:radial-gradient(circle at 76% 16%,#fff6 0 5%,transparent 25%),linear-gradient(180deg,#fff1 0 58%,#2f4f3315 100%)}.teen-number-equation{position:absolute;z-index:18;top:108px;left:50%;display:flex;align-items:center;gap:clamp(8px,1.2vw,15px);color:#fffdf5;font-size:clamp(43px,5.8vw,72px);font-weight:1000;line-height:1;text-shadow:0 3px 0 #635441,0 6px 0 #443a30,0 10px 16px #3e4f5c4d;translate:-50% 0;white-space:nowrap}.teen-number-equation span{color:#ffe25b}.teen-number-equation strong{display:grid;min-width:1.05em;place-items:center}.teen-number-equation strong:first-child{color:#fff8a8}.teen-number-equation.is-solved strong:last-child{color:#daff9b;animation:teen-answer-pop .55s cubic-bezier(.2,1.45,.4,1)}.passenger-bus{position:absolute;z-index:10;bottom:34%;left:1.5%;width:min(40%,472px);aspect-ratio:1774/887;transform-origin:50% 100%;filter:drop-shadow(0 18px 12px #263e484d)}.passenger-bus.is-happy{animation:teen-bus-arrival .72s cubic-bezier(.2,1.2,.4,1)}.passenger-bus-art{z-index:1;object-fit:contain}.bus-passenger-window{position:absolute;z-index:3;top:29.5%;right:8.2%;left:29.2%;display:grid;height:22%;grid-template-columns:repeat(5,minmax(0,1fr));grid-template-rows:repeat(2,minmax(0,1fr));align-items:end;justify-items:center;gap:0 1%;overflow:hidden;border-radius:12%/28%;pointer-events:none}.bus-passenger{position:relative;display:block;width:min(88%,47px);aspect-ratio:1;align-self:center;border-radius:50%;background:#b9e7ff66;filter:drop-shadow(0 2px 2px #17344b66)}.bus-passenger img{object-fit:contain;object-position:center bottom}.bus-ten-label{position:absolute;z-index:4;right:19%;bottom:22%;color:#6d421f;font-size:clamp(12px,1.5vw,18px);font-weight:1000;letter-spacing:.02em;text-shadow:0 2px #ffe59a}.waiting-groups{position:absolute;z-index:14;top:38%;right:1.5%;display:grid;width:52%;height:32%;grid-template-columns:repeat(3,minmax(0,1fr));align-items:end;gap:clamp(4px,1vw,12px)}.waiting-group{position:relative;display:grid;width:100%;height:100%;place-items:end center;padding:0 2px 2px;border:0;outline:0;background:transparent;cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent;transform-origin:50% 100%}.waiting-group:hover:not(:disabled){transform:translateY(-5px) scale(1.03)}.waiting-group:active:not(:disabled){transform:translateY(2px) scale(.97)}.waiting-group:focus-visible{filter:drop-shadow(0 0 6px #fff) drop-shadow(0 0 11px #fff24f)}.waiting-group:disabled{cursor:default}.waiting-group.is-wrong{animation:teen-gentle-shake .5s ease-in-out}.waiting-group.is-boarding{animation:teen-board-bus 1.1s cubic-bezier(.3,.1,.35,1) forwards}.waiting-passengers{position:absolute;top:0;right:3%;bottom:66%;left:3%;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-template-rows:repeat(3,minmax(0,1fr));align-content:end;align-items:end;justify-items:center;gap:0}.waiting-passenger{position:relative;display:block;width:clamp(27px,3vw,42px);aspect-ratio:1;margin:-5px;filter:drop-shadow(0 6px 4px #31452f4a)}.waiting-passenger img{object-fit:contain;object-position:center bottom}.waiting-group>strong{position:relative;z-index:4;display:grid;min-width:clamp(54px,6.5vw,72px);min-height:clamp(42px,5.5vw,59px);padding:4px 10px;place-items:center;border:0;border-radius:48% 52% 45% 55%;color:#fff;background:linear-gradient(145deg,#ff956f,#e75e5d);box-shadow:inset 0 3px #fff7,0 6px 0 #9e3d3d,0 10px 14px #56393935;font-size:clamp(22px,3vw,35px);font-weight:1000;line-height:1;text-shadow:0 2px #8d363d}.waiting-group:nth-child(2)>strong{background:linear-gradient(145deg,#74ccec,#3c9ec8);box-shadow:inset 0 3px #fff7,0 6px 0 #27769f,0 10px 14px #334f6635}.waiting-group:nth-child(3)>strong{background:linear-gradient(145deg,#ab91e8,#7c64c3);box-shadow:inset 0 3px #fff7,0 6px 0 #55429a,0 10px 14px #3f365e35}.teen-bus-cherry{position:absolute;z-index:15;bottom:.5%;left:-.5%;width:clamp(162px,19.5vw,225px);aspect-ratio:1;pointer-events:none;transform-origin:50% 92%;filter:drop-shadow(0 10px 7px #344a3550)}.teen-bus-cherry img{object-fit:contain;object-position:center bottom;opacity:0;transition:opacity .12s linear}.teen-bus-cherry.is-happy img.is-happy,.teen-bus-cherry.is-idle img.is-idle,.teen-bus-cherry.is-surprised img.is-surprised{opacity:1}.teen-bus-cherry.is-idle{animation:teen-cherry-breathe 3.4s ease-in-out infinite}.teen-bus-cherry.is-happy{animation:teen-cherry-cheer .62s cubic-bezier(.2,1.35,.4,1)}.teen-bus-cherry.is-surprised{animation:teen-gentle-shake .5s ease-in-out}.teen-bus-feedback{position:absolute;z-index:18;right:3%;bottom:2%;left:15%;margin:0;color:#fffdf1;font-size:clamp(17px,2.2vw,27px);font-weight:1000;text-align:center;text-shadow:0 3px 0 #3e5237,0 7px 14px #31482e66}@keyframes teen-answer-pop{45%{transform:translateY(-8px) scale(1.16)}}@keyframes teen-bus-arrival{38%{transform:translateX(-7px) rotate(-.5deg)}68%{transform:translateX(3px) rotate(.3deg)}}@keyframes teen-board-bus{0%{opacity:1;transform:translateZ(0) scale(1)}58%{opacity:1;transform:translate3d(-42vw,19vh,0) scale(.5)}to{opacity:0;transform:translate3d(-50vw,24vh,0) scale(.18)}}@keyframes teen-gentle-shake{25%{transform:translateX(-7px) rotate(-2deg)}60%{transform:translateX(6px) rotate(2deg)}}@keyframes teen-cherry-breathe{50%{transform:translateY(-5px) scale(1.015,.985)}}@keyframes teen-cherry-cheer{50%{transform:translateY(-14px) rotate(4deg) scale(1.04)}}@media(min-width:651px){.teen-bus.is-immersive .prek-screen{min-height:0;aspect-ratio:16/9}}@media(max-width:1000px){.teen-number-equation{top:142px}.passenger-bus{bottom:34%;width:41.6%}.waiting-passenger{width:clamp(27px,3.8vw,40px)}}@media(max-width:650px){.teen-bus-background{object-position:54% center}.teen-number-equation{top:137px;font-size:clamp(39px,11vw,55px)}.waiting-groups{top:205px;right:2%;width:72%;height:20%}.waiting-passengers{top:0;bottom:23%}.waiting-passenger{width:clamp(25px,8.4vw,38px);margin:-4px}.waiting-group>strong{min-width:48px;min-height:40px;font-size:22px}.passenger-bus{right:-1%;bottom:32%;left:auto;width:73.6%}.bus-passenger{width:min(88%,27px)}.bus-ten-label{right:18%;bottom:21%;font-size:11px}.teen-bus-cherry{bottom:1%;left:-4%;width:141px}.teen-bus-feedback{right:2%;bottom:1.5%;left:21%;font-size:14px}}@media(max-width:390px){.teen-number-equation{top:141px;font-size:38px}.waiting-groups{top:205px;width:74%;height:20%}.waiting-passenger{width:27px}.passenger-bus{bottom:32%;width:75.2%}.teen-bus-cherry{width:123px}}@media(max-height:700px) and (min-width:651px){.teen-number-equation{top:104px;font-size:50px}.passenger-bus{bottom:34%;width:32%}.waiting-passenger{width:33px}.teen-bus-cherry{width:162px}}@media(prefers-reduced-motion:reduce){.passenger-bus.is-happy,.teen-bus-cherry,.teen-number-equation.is-solved strong:last-child,.waiting-group.is-boarding,.waiting-group.is-wrong{animation:none!important}.teen-bus-cherry img{transition:none}}