.book-stack-game-module__RzUS4W__game{--cream:#f7e1b5;--cream-soft:#fff3d3;--teal:#062f35;--teal-dark:#031f24;--gold:#e7a35b;--coral:#d45f3e;--book-step:clamp(36px,5.4vh,54px);--base-bottom:clamp(54px,8vh,78px);isolation:isolate;background:var(--teal-dark);min-height:100svh;color:var(--cream-soft);touch-action:manipulation;-webkit-user-select:none;user-select:none;font-family:Amazon Ember,Inter,ui-sans-serif,system-ui,sans-serif;position:relative;overflow:hidden}.book-stack-game-module__RzUS4W__backdrop{z-index:-2;background-image:url(/games/book-stack/library-skyline.png);background-position:50%;background-size:cover;position:absolute;inset:0}.book-stack-game-module__RzUS4W__game:after{z-index:-1;content:"";pointer-events:none;background:linear-gradient(#031f2438,#0000 34%,#031f2447);position:absolute;inset:0}.book-stack-game-module__RzUS4W__header{z-index:120;grid-template-columns:minmax(180px,1fr) auto minmax(180px,1fr);align-items:start;gap:24px;width:100%;padding:clamp(18px,3vw,34px) clamp(18px,4vw,64px);display:grid;position:relative}.book-stack-game-module__RzUS4W__brand{width:fit-content;color:var(--cream-soft);letter-spacing:.01em;text-shadow:0 2px 12px #02171bb3;align-items:center;gap:11px;font-family:Georgia,Times New Roman,serif;font-size:clamp(16px,1.5vw,23px);font-weight:700;text-decoration:none;display:inline-flex}.book-stack-game-module__RzUS4W__brand svg{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:2px;width:clamp(34px,3vw,46px);height:auto}.book-stack-game-module__RzUS4W__hud{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#03252a6b;border-block:1px solid #e7a35b75;grid-template-columns:repeat(3,minmax(92px,150px));min-width:min(100%,430px);display:grid;box-shadow:0 14px 48px #01111429}.book-stack-game-module__RzUS4W__hud div{justify-items:center;gap:1px;padding:8px 16px 10px;display:grid}.book-stack-game-module__RzUS4W__hud div+div{border-left:1px solid #e7a35b61}.book-stack-game-module__RzUS4W__hud span{color:#fff3d3c7;letter-spacing:.14em;text-transform:uppercase;font-size:11px;font-weight:800}.book-stack-game-module__RzUS4W__hud strong{color:var(--cream-soft);font-variant-numeric:tabular-nums;font-family:Georgia,Times New Roman,serif;font-size:clamp(24px,2.3vw,38px);font-weight:500;line-height:1}.book-stack-game-module__RzUS4W__headerActions{justify-content:flex-end;gap:10px;display:flex}.book-stack-game-module__RzUS4W__iconButton{width:clamp(44px,4vw,54px);height:clamp(44px,4vw,54px);color:var(--cream-soft);cursor:pointer;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#03262b94;border:1px solid #e7a35bbf;border-radius:50%;justify-content:center;align-items:center;transition:transform .16s,background .16s,border-color .16s;display:inline-flex;box-shadow:0 8px 22px #02141742}.book-stack-game-module__RzUS4W__iconButton:hover,.book-stack-game-module__RzUS4W__iconButton:focus-visible{border-color:var(--cream-soft);background:#083e44e6;outline:none;transform:translateY(-2px)}.book-stack-game-module__RzUS4W__iconButton svg{stroke-width:2px;width:21px;height:21px}.book-stack-game-module__RzUS4W__playfield,.book-stack-game-module__RzUS4W__tower{position:absolute;inset:0}.book-stack-game-module__RzUS4W__tower{top:clamp(92px,14vh,132px);bottom:0;overflow:hidden}.book-stack-game-module__RzUS4W__book{bottom:calc(var(--base-bottom) + (var(--stack-index) - var(--camera-index))*var(--book-step));left:var(--book-left);z-index:calc(5 + var(--stack-index));width:var(--book-width);height:var(--book-step);filter:drop-shadow(0 8px 5px #02141847);transform-origin:bottom;background-position:50%;background-repeat:no-repeat;background-size:100% 100%;transition:bottom .26s,width .18s;position:absolute}.book-stack-game-module__RzUS4W__perfectBook{animation:.44s ease-out book-stack-game-module__RzUS4W__perfectSettle}.book-stack-game-module__RzUS4W__activeBook{bottom:calc(var(--base-bottom) + (var(--stack-index) - var(--camera-index))*var(--book-step) + clamp(62px,10vh,104px));z-index:50;filter:drop-shadow(0 10px 8px #02141857);transition:none}.book-stack-game-module__RzUS4W__activeBook:after{content:"";opacity:.6;background:repeating-linear-gradient(90deg,#0000 0 8px,#f7e1b5b8 8px 11px);height:1px;position:absolute;bottom:50%;left:-56px;right:-56px;transform:translateY(50%)}.book-stack-game-module__RzUS4W__fallingPiece{z-index:4;pointer-events:none;animation:.56s cubic-bezier(.34,.02,.84,.4) forwards book-stack-game-module__RzUS4W__fallAway}.book-stack-game-module__RzUS4W__fallLeft{--fall-rotation:-18deg;--fall-drift:-42px}.book-stack-game-module__RzUS4W__fallRight{--fall-rotation:18deg;--fall-drift:42px}.book-stack-game-module__RzUS4W__feedback{z-index:60;min-width:max-content;color:var(--cream-soft);letter-spacing:.04em;text-align:center;text-shadow:0 3px 20px #021417cc;pointer-events:none;font-family:Georgia,Times New Roman,serif;font-size:clamp(25px,3vw,48px);font-weight:700;animation:.85s ease-out both book-stack-game-module__RzUS4W__feedbackPop;position:absolute;top:clamp(31%,39vh,43%);left:50%;transform:translate(-50%,-50%)}.book-stack-game-module__RzUS4W__perfect{color:#ffd287}.book-stack-game-module__RzUS4W__milestone{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#0324299e;border-block:1px solid #e7a35bb3;padding:10px 20px;font-size:clamp(20px,2.2vw,34px)}.book-stack-game-module__RzUS4W__standard{letter-spacing:.08em;text-transform:uppercase;font-family:Amazon Ember,Inter,ui-sans-serif,system-ui,sans-serif;font-size:clamp(14px,1.5vw,20px);font-weight:800}.book-stack-game-module__RzUS4W__instruction{z-index:65;color:#fff3d3e0;letter-spacing:.12em;text-align:center;text-shadow:0 2px 12px #021417e6;text-transform:uppercase;width:min(90vw,760px);margin:0;font-size:clamp(12px,1.25vw,17px);font-weight:800;position:absolute;bottom:clamp(14px,2.8vh,28px);left:50%;transform:translate(-50%)}.book-stack-game-module__RzUS4W__overlay{z-index:100;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#021d2299;place-items:center;padding:96px 24px 32px;display:grid;position:absolute;inset:0}.book-stack-game-module__RzUS4W__intro{-webkit-backdrop-filter:none;backdrop-filter:none;background:linear-gradient(90deg,#021d22db 0%,#021d22a3 44%,#021d222e 74%);grid-template-columns:minmax(300px,540px) minmax(220px,430px);justify-content:center;gap:clamp(32px,8vw,120px);padding-inline:clamp(24px,7vw,110px)}.book-stack-game-module__RzUS4W__introCopy,.book-stack-game-module__RzUS4W__dialog,.book-stack-game-module__RzUS4W__resultPanel{text-align:center;flex-direction:column;align-items:center;display:flex}.book-stack-game-module__RzUS4W__introCopy{text-align:left;align-items:flex-start}.book-stack-game-module__RzUS4W__smallTitle{color:var(--gold);letter-spacing:.16em;text-transform:uppercase;margin:0 0 8px;font-size:clamp(12px,1.1vw,15px);font-weight:800}.book-stack-game-module__RzUS4W__intro h1,.book-stack-game-module__RzUS4W__dialog h2{color:var(--cream-soft);letter-spacing:-.035em;text-shadow:0 4px 28px #01121580;margin:0;font-family:Georgia,Times New Roman,serif;font-size:clamp(48px,6.2vw,92px);font-weight:500;line-height:.98}.book-stack-game-module__RzUS4W__introCopy>p:not(.book-stack-game-module__RzUS4W__smallTitle,.book-stack-game-module__RzUS4W__highScoreLine){color:#fff3d3d6;max-width:560px;margin:24px 0;font-size:clamp(16px,1.45vw,21px);line-height:1.58}.book-stack-game-module__RzUS4W__highScoreLine{color:var(--cream-soft);margin:0 0 24px;font-family:Georgia,Times New Roman,serif;font-size:20px}.book-stack-game-module__RzUS4W__gameOptions{grid-template-columns:minmax(0,1fr) 150px;gap:14px;width:100%;max-width:560px;margin:0 0 20px;display:grid}.book-stack-game-module__RzUS4W__gameOptions fieldset{border:0;min-width:0;margin:0;padding:0}.book-stack-game-module__RzUS4W__gameOptions legend,.book-stack-game-module__RzUS4W__levelChoice>span{color:#fff3d3b3;letter-spacing:.12em;text-transform:uppercase;margin-bottom:7px;font-size:10px;font-weight:800;display:block}.book-stack-game-module__RzUS4W__difficultyChoices{grid-template-columns:repeat(3,minmax(0,1fr));gap:7px;display:grid}.book-stack-game-module__RzUS4W__difficultyChoices button{min-height:64px;color:var(--cream-soft);text-align:left;cursor:pointer;background:#03272c94;border:1px solid #e7a35b59;border-radius:4px;gap:2px;padding:9px 10px;display:grid}.book-stack-game-module__RzUS4W__difficultyChoices button:hover,.book-stack-game-module__RzUS4W__difficultyChoices button:focus-visible,.book-stack-game-module__RzUS4W__difficultyChoices .book-stack-game-module__RzUS4W__selectedChoice{border-color:var(--gold);background:#09494ee0;outline:none}.book-stack-game-module__RzUS4W__difficultyChoices strong{font-family:Georgia,Times New Roman,serif;font-size:15px}.book-stack-game-module__RzUS4W__difficultyChoices span,.book-stack-game-module__RzUS4W__levelChoice small{color:#fff3d394;font-size:9px;line-height:1.25}.book-stack-game-module__RzUS4W__levelChoice{display:block}.book-stack-game-module__RzUS4W__levelChoice select{width:100%;min-height:38px;color:var(--cream-soft);font:inherit;background:#073d43;border:1px solid #e7a35b85;border-radius:4px;padding:7px 30px 7px 10px;font-size:13px;font-weight:800}.book-stack-game-module__RzUS4W__levelChoice small{margin-top:5px;display:block}.book-stack-game-module__RzUS4W__primaryButton,.book-stack-game-module__RzUS4W__secondaryButton{letter-spacing:.07em;text-transform:uppercase;cursor:pointer;border-radius:4px;justify-content:center;align-items:center;gap:11px;min-height:54px;padding:14px 28px;font-size:15px;font-weight:800;text-decoration:none;transition:transform .16s,box-shadow .16s,background .16s;display:inline-flex}.book-stack-game-module__RzUS4W__primaryButton{background:var(--coral);color:#fff8e8;border:1px solid #f28a69;box-shadow:0 12px 34px #54180f57,inset 0 0 0 2px #fff4da29}.book-stack-game-module__RzUS4W__secondaryButton{color:var(--cream-soft);background:#04383eb3;border:1px solid #f7e1b5b8}.book-stack-game-module__RzUS4W__primaryButton:hover,.book-stack-game-module__RzUS4W__primaryButton:focus-visible,.book-stack-game-module__RzUS4W__secondaryButton:hover,.book-stack-game-module__RzUS4W__secondaryButton:focus-visible{outline:none;transform:translateY(-2px)}.book-stack-game-module__RzUS4W__primaryButton:hover,.book-stack-game-module__RzUS4W__primaryButton:focus-visible{background:#e16a48;box-shadow:0 16px 40px #54180f70,inset 0 0 0 2px #fff4da33}.book-stack-game-module__RzUS4W__primaryButton svg{fill:currentColor;stroke-width:1.8px;width:20px;height:20px}.book-stack-game-module__RzUS4W__primaryButton:disabled,.book-stack-game-module__RzUS4W__secondaryButton:disabled{cursor:not-allowed;opacity:.62;transform:none}.book-stack-game-module__RzUS4W__microcopy{color:#fff3d39e;margin-top:14px;font-size:12px}.book-stack-game-module__RzUS4W__leaderboard{-webkit-backdrop-filter:blur(9px);backdrop-filter:blur(9px);background:#03262bd1;border:1px solid #e7a35b7a;border-radius:7px;align-self:center;width:min(100%,430px);max-height:min(66vh,590px);overflow:hidden;box-shadow:0 28px 90px #010f1261}.book-stack-game-module__RzUS4W__leaderboardHeader{border-bottom:1px solid #e7a35b47;justify-content:space-between;align-items:center;gap:18px;padding:20px 22px 16px;display:flex}.book-stack-game-module__RzUS4W__leaderboardHeader div{gap:2px;display:grid}.book-stack-game-module__RzUS4W__leaderboardHeader div>span{color:var(--gold);letter-spacing:.14em;text-transform:uppercase;font-size:9px;font-weight:800}.book-stack-game-module__RzUS4W__leaderboardHeader strong{font-family:Georgia,Times New Roman,serif;font-size:25px;font-weight:500}.book-stack-game-module__RzUS4W__settingBadge{color:#fff3d3cc;letter-spacing:.06em;text-transform:uppercase;border:1px solid #e7a35b6b;border-radius:999px;flex:none;padding:6px 9px;font-size:10px;font-weight:800}.book-stack-game-module__RzUS4W__leaderboardList{max-height:min(51vh,470px);margin:0;padding:7px 14px 13px;list-style:none;overflow-y:auto}.book-stack-game-module__RzUS4W__leaderboardList li{border-bottom:1px solid #e7a35b24;grid-template-columns:34px minmax(0,1fr) auto;align-items:center;gap:10px;min-height:50px;padding:7px 8px;display:grid}.book-stack-game-module__RzUS4W__leaderboardList li:last-child{border-bottom:0}.book-stack-game-module__RzUS4W__leaderboardRank{width:28px;height:28px;color:var(--gold);border:1px solid #e7a35b80;border-radius:50%;place-items:center;font-family:Georgia,Times New Roman,serif;display:grid}.book-stack-game-module__RzUS4W__leaderboardName{min-width:0;color:var(--cream-soft);text-overflow:ellipsis;white-space:nowrap;font-size:14px;font-weight:800;display:grid;overflow:hidden}.book-stack-game-module__RzUS4W__leaderboardName small{color:#fff3d385;letter-spacing:.06em;text-transform:uppercase;font-size:9px;font-weight:700}.book-stack-game-module__RzUS4W__leaderboardList li>strong{color:var(--cream-soft);font-variant-numeric:tabular-nums;font-family:Georgia,Times New Roman,serif;font-size:22px}.book-stack-game-module__RzUS4W__leaderboardState{color:#fff3d3a8;text-align:center;margin:0;padding:34px 24px;font-size:13px;line-height:1.5}.book-stack-game-module__RzUS4W__introTower{flex-direction:column-reverse;justify-content:flex-start;align-items:center;width:min(31vw,420px);height:min(62vh,530px);padding-top:10vh;display:flex}.book-stack-game-module__RzUS4W__introTower span,.book-stack-game-module__RzUS4W__resultTower span{width:calc(100% - var(--intro-index)*4%);aspect-ratio:3.62;filter:drop-shadow(0 10px 8px #0214174d);transform:translateX(calc((var(--intro-index) - 2)*1.5%));background-position:50%;background-repeat:no-repeat;background-size:100% 100%;margin-top:-2%;display:block}.book-stack-game-module__RzUS4W__dialog{background:#03272ce6;border:1px solid #e7a35b80;border-radius:6px;width:min(92vw,620px);padding:clamp(28px,5vw,54px);box-shadow:0 28px 90px #010f1275}.book-stack-game-module__RzUS4W__dialog h2{font-size:clamp(34px,4.2vw,54px)}.book-stack-game-module__RzUS4W__dialog>p:not(.book-stack-game-module__RzUS4W__smallTitle){color:#fff3d3c7;max-width:480px;margin:18px 0 26px;font-size:16px;line-height:1.55}.book-stack-game-module__RzUS4W__dialogIcon{width:42px;height:42px;color:var(--gold);margin-bottom:20px}.book-stack-game-module__RzUS4W__tutorialSteps{text-align:left;gap:14px;width:100%;margin:28px 0;padding:0;list-style:none;display:grid}.book-stack-game-module__RzUS4W__tutorialSteps li{color:#fff3d3d6;grid-template-columns:34px 1fr;align-items:center;gap:14px;font-size:15px;line-height:1.45;display:grid}.book-stack-game-module__RzUS4W__tutorialSteps span{width:34px;height:34px;color:var(--gold);border:1px solid #e7a35bb3;border-radius:50%;place-items:center;font-family:Georgia,Times New Roman,serif;font-size:18px;display:grid}.book-stack-game-module__RzUS4W__textButton{color:var(--cream-soft);letter-spacing:.06em;text-transform:uppercase;cursor:pointer;background:0 0;border:0;border-bottom:1px solid #f7e1b58c;margin-top:16px;font-size:13px;font-weight:800;text-decoration:none}.book-stack-game-module__RzUS4W__textButton:hover,.book-stack-game-module__RzUS4W__textButton:focus-visible{border-color:var(--cream-soft);outline:none}.book-stack-game-module__RzUS4W__countdown{align-content:center}.book-stack-game-module__RzUS4W__countdown p{color:var(--gold);letter-spacing:.16em;text-transform:uppercase;margin:0;font-size:14px;font-weight:800}.book-stack-game-module__RzUS4W__countdown strong{color:var(--cream-soft);font-family:Georgia,Times New Roman,serif;font-size:clamp(96px,18vw,220px);font-weight:500;line-height:.9;animation:.65s both book-stack-game-module__RzUS4W__countdownPulse}.book-stack-game-module__RzUS4W__results{background:#021c21b8;grid-template-columns:minmax(240px,430px) minmax(360px,570px);justify-content:center;gap:clamp(44px,8vw,130px)}.book-stack-game-module__RzUS4W__resultTower{flex-direction:column-reverse;justify-content:flex-start;align-items:center;width:min(29vw,430px);height:min(70vh,610px);padding-top:8vh;display:flex}.book-stack-game-module__RzUS4W__resultTower span{--intro-index:var(--result-index);aspect-ratio:auto;height:clamp(32px,5.2vh,50px);transform:translateX(calc((var(--result-index) - 4)*0.7%));flex:none}.book-stack-game-module__RzUS4W__resultPanel{-webkit-backdrop-filter:blur(9px);backdrop-filter:blur(9px);background:#03272cb8;border-block:1px solid #e7a35b85;width:min(92vw,570px);max-height:calc(100svh - 130px);padding:clamp(26px,4vw,48px);overflow-y:auto;box-shadow:0 24px 80px #010f1257}.book-stack-game-module__RzUS4W__resultSetting{color:#fff3d3a6;letter-spacing:.12em;text-transform:uppercase;margin-top:9px;font-size:10px;font-weight:800}.book-stack-game-module__RzUS4W__finalScore{color:var(--cream-soft);font-variant-numeric:tabular-nums;font-family:Georgia,Times New Roman,serif;font-size:clamp(86px,11vw,150px);font-weight:400;line-height:.9}.book-stack-game-module__RzUS4W__newRecord,.book-stack-game-module__RzUS4W__resultMessage{color:var(--gold);margin:10px 0 20px;font-family:Georgia,Times New Roman,serif;font-size:clamp(22px,2.2vw,32px);font-weight:700}.book-stack-game-module__RzUS4W__resultMessage{color:#fff3d3b8;font-size:17px;font-style:italic;font-weight:400}.book-stack-game-module__RzUS4W__resultStats{border-block:1px solid #e7a35b4d;grid-template-columns:repeat(3,1fr);width:100%;margin:0 0 26px;padding:18px 0;display:grid}.book-stack-game-module__RzUS4W__resultStats div{flex-direction:column-reverse;align-items:center;display:flex}.book-stack-game-module__RzUS4W__resultStats dt{color:#fff3d3a8;letter-spacing:.1em;text-transform:uppercase;font-size:10px;font-weight:800}.book-stack-game-module__RzUS4W__resultStats dd{color:var(--cream-soft);margin:0;font-family:Georgia,Times New Roman,serif;font-size:30px}.book-stack-game-module__RzUS4W__resultPanel .book-stack-game-module__RzUS4W__primaryButton,.book-stack-game-module__RzUS4W__resultPanel .book-stack-game-module__RzUS4W__secondaryButton{width:100%}.book-stack-game-module__RzUS4W__resultPanel .book-stack-game-module__RzUS4W__secondaryButton{margin-top:12px}.book-stack-game-module__RzUS4W__scoreForm{text-align:left;background:#021d226b;border:1px solid #e7a35b52;border-radius:5px;width:100%;margin:0 0 4px;padding:16px}.book-stack-game-module__RzUS4W__scoreForm>label{color:var(--cream-soft);letter-spacing:.1em;text-transform:uppercase;margin-bottom:9px;font-size:11px;font-weight:800;display:block}.book-stack-game-module__RzUS4W__scoreForm>div{grid-template-columns:minmax(0,1fr) auto;gap:8px;display:grid}.book-stack-game-module__RzUS4W__scoreForm input{color:#082f34;min-width:0;min-height:50px;font:inherit;-webkit-user-select:text;user-select:text;background:#fff8e8f5;border:1px solid #f7e1b57a;border-radius:4px;padding:11px 13px;font-size:15px}.book-stack-game-module__RzUS4W__scoreForm input:focus-visible{border-color:var(--gold);outline:2px solid #e7a35b59}.book-stack-game-module__RzUS4W__scoreForm .book-stack-game-module__RzUS4W__primaryButton{width:auto;min-height:50px;padding-inline:18px;font-size:12px}.book-stack-game-module__RzUS4W__submitStatus,.book-stack-game-module__RzUS4W__submitError{color:#bce7cd;text-align:left;width:100%;margin:9px 0 0;font-size:11px;line-height:1.4}.book-stack-game-module__RzUS4W__submitError{color:#ffc0ad;text-align:center;margin:0 0 12px}.book-stack-game-module__RzUS4W__scoreForm .book-stack-game-module__RzUS4W__submitError{text-align:left;margin:9px 0 0}@keyframes book-stack-game-module__RzUS4W__perfectSettle{0%{filter:drop-shadow(0 0 #ffd28700);transform:scale(1)}45%{filter:drop-shadow(0 0 18px #ffd287d1);transform:scale(1.035)}to{filter:drop-shadow(0 8px 5px #02141847);transform:scale(1)}}@keyframes book-stack-game-module__RzUS4W__fallAway{0%{opacity:1;transform:translate(0)rotate(0)}to{opacity:0;transform:translate(var(--fall-drift),44vh)rotate(var(--fall-rotation))}}@keyframes book-stack-game-module__RzUS4W__feedbackPop{0%{opacity:0;transform:translate(-50%,-38%)scale(.82)}18%{opacity:1;transform:translate(-50%,-50%)scale(1.04)}75%{opacity:1;transform:translate(-50%,-50%)scale(1)}to{opacity:0;transform:translate(-50%,-62%)scale(.98)}}@keyframes book-stack-game-module__RzUS4W__countdownPulse{0%{opacity:0;transform:scale(.7)}25%{opacity:1;transform:scale(1)}to{opacity:.15;transform:scale(1.12)}}@media (max-width:840px){.book-stack-game-module__RzUS4W__game{--book-step:clamp(32px,5.2vh,43px);--base-bottom:clamp(58px,8vh,72px)}.book-stack-game-module__RzUS4W__backdrop{background-position:bottom}.book-stack-game-module__RzUS4W__header{grid-template-columns:1fr auto;gap:10px;padding:14px 14px 0}.book-stack-game-module__RzUS4W__brand{gap:7px;font-size:14px}.book-stack-game-module__RzUS4W__brand svg{width:31px}.book-stack-game-module__RzUS4W__hud{grid-column:1/-1;width:calc(100vw - 28px);min-width:0;position:absolute;top:68px;left:14px}.book-stack-game-module__RzUS4W__hud div{padding:7px 8px 8px}.book-stack-game-module__RzUS4W__hud span{font-size:9px}.book-stack-game-module__RzUS4W__hud strong{font-size:25px}.book-stack-game-module__RzUS4W__headerActions{grid-column:2}.book-stack-game-module__RzUS4W__iconButton{width:44px;height:44px}.book-stack-game-module__RzUS4W__playfield{top:22px}.book-stack-game-module__RzUS4W__tower{top:126px}.book-stack-game-module__RzUS4W__activeBook{bottom:calc(var(--base-bottom) + (var(--stack-index) - var(--camera-index))*var(--book-step) + clamp(74px,12vh,104px))}.book-stack-game-module__RzUS4W__instruction{letter-spacing:.08em;-webkit-backdrop-filter:blur(7px);backdrop-filter:blur(7px);background:#03272cb8;border:1px solid #e7a35b80;width:calc(100vw - 28px);padding:11px 14px;font-size:10px}.book-stack-game-module__RzUS4W__feedback{font-size:clamp(24px,8vw,34px);top:36%}.book-stack-game-module__RzUS4W__intro,.book-stack-game-module__RzUS4W__results{background:#021d22b3;grid-template-columns:1fr;align-content:center;padding:96px 20px 28px;display:block;overflow-y:auto}.book-stack-game-module__RzUS4W__introCopy{text-align:center;align-items:center;width:100%}.book-stack-game-module__RzUS4W__intro h1{font-size:clamp(48px,15vw,68px)}.book-stack-game-module__RzUS4W__introCopy>p:not(.book-stack-game-module__RzUS4W__smallTitle,.book-stack-game-module__RzUS4W__highScoreLine){margin:16px 0 20px;font-size:15px}.book-stack-game-module__RzUS4W__gameOptions{text-align:left;grid-template-columns:1fr}.book-stack-game-module__RzUS4W__difficultyChoices button{text-align:center;min-height:48px}.book-stack-game-module__RzUS4W__difficultyChoices button span{display:none}.book-stack-game-module__RzUS4W__leaderboard{width:100%;max-height:330px;margin:24px auto 0}.book-stack-game-module__RzUS4W__leaderboardList{max-height:236px}.book-stack-game-module__RzUS4W__introTower,.book-stack-game-module__RzUS4W__resultTower{display:none}.book-stack-game-module__RzUS4W__overlay{padding:104px 14px 24px}.book-stack-game-module__RzUS4W__dialog,.book-stack-game-module__RzUS4W__resultPanel{max-height:calc(100svh - 128px);padding:24px 20px;overflow-y:auto}.book-stack-game-module__RzUS4W__results .book-stack-game-module__RzUS4W__resultPanel{max-height:none;margin:16px auto 0;overflow:visible}.book-stack-game-module__RzUS4W__dialog h2{font-size:34px}.book-stack-game-module__RzUS4W__tutorialSteps{margin:20px 0}.book-stack-game-module__RzUS4W__results{gap:0}.book-stack-game-module__RzUS4W__scoreForm>div{grid-template-columns:1fr}.book-stack-game-module__RzUS4W__scoreForm .book-stack-game-module__RzUS4W__primaryButton{width:100%}.book-stack-game-module__RzUS4W__finalScore{font-size:86px}.book-stack-game-module__RzUS4W__resultStats{margin-bottom:20px}.book-stack-game-module__RzUS4W__resultStats dt{font-size:8px}.book-stack-game-module__RzUS4W__resultStats dd{font-size:25px}}@media (max-height:680px) and (min-width:841px){.book-stack-game-module__RzUS4W__header{padding-top:14px}.book-stack-game-module__RzUS4W__tower{top:80px}.book-stack-game-module__RzUS4W__introTower{height:440px}.book-stack-game-module__RzUS4W__resultPanel{padding-block:24px}.book-stack-game-module__RzUS4W__finalScore{font-size:82px}}@media (prefers-reduced-motion:reduce){.book-stack-game-module__RzUS4W__book,.book-stack-game-module__RzUS4W__iconButton,.book-stack-game-module__RzUS4W__primaryButton,.book-stack-game-module__RzUS4W__secondaryButton{transition-duration:.01ms}.book-stack-game-module__RzUS4W__perfectBook,.book-stack-game-module__RzUS4W__feedback,.book-stack-game-module__RzUS4W__fallingPiece,.book-stack-game-module__RzUS4W__countdown strong{animation-duration:.01ms;animation-iteration-count:1}}