:root{--navy:#073a7b;--blue:#0787da;--light:#eaf9ff;--yellow:#ffcb4c;--pink:#fa348f;--green:#1bc77f;--ink:#07325a;--shadow:0 12px 30px rgba(10,85,150,.18);--radius:26px}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:'Trebuchet MS','Arial Rounded MT Bold',Arial,sans-serif;color:var(--ink);background:linear-gradient(135deg,#bfeeff,#e9fff3 47%,#d8ecff);-webkit-tap-highlight-color:transparent}body{overflow-x:hidden}button,input{font:inherit}button{cursor:pointer}button:focus-visible,input:focus-visible,[role="button"]:focus-visible{outline:4px solid #ffad23;outline-offset:3px}.app-shell{width:min(1600px,100%);min-height:100dvh;margin:auto;display:flex;flex-direction:column;padding:12px 18px 10px;gap:12px}.site-head{border-radius:22px;background:linear-gradient(110deg,#025aa1,#159ce3 70%,#38c5e5);color:white;min-height:83px;display:flex;align-items:center;justify-content:space-between;padding:12px 20px;box-shadow:var(--shadow);gap:10px}.brand{display:flex;align-items:center;gap:12px;min-width:0}.brand-house{font-size:53px;line-height:.8;color:#ffe25d;text-shadow:2px 3px #0d4978}.brand b{font-size:clamp(21px,2.6vw,37px);line-height:1.04;display:block;letter-spacing:-.6px}.brand small{display:block;font-size:clamp(10px,1vw,16px);letter-spacing:1.1px;margin-top:5px;font-weight:800}.top-actions{display:flex;gap:9px;flex-shrink:0}.iconbtn{border:2px solid #ffffff88;background:#ffffff2a;color:white;border-radius:15px;min-width:57px;min-height:52px;font-size:26px}main{flex:1;display:flex;min-height:550px}main>*{width:100%}footer{background:#ffffffb2;border-radius:12px;text-align:center;color:#3e749f;font-size:clamp(11px,1.2vw,16px);padding:10px 7px;font-weight:600}.screen-card{background:rgba(255,255,255,.94);border:2px solid #cff0ff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;padding:clamp(14px,2vw,28px);min-height:570px}.row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.between{justify-content:space-between}.center{text-align:center}.pill{display:inline-flex;align-items:center;padding:9px 17px;border-radius:100px;background:#e8f5ff;color:#0f67af;font-size:clamp(13px,1.3vw,18px);font-weight:900}.h1{font-size:clamp(32px,4.5vw,66px);letter-spacing:-1.8px;line-height:1.08;margin:10px 0}.h2{font-size:clamp(26px,3.2vw,44px);margin:4px 0 10px;line-height:1.12}.sub{font-size:clamp(18px,1.7vw,25px);color:#467b9d;line-height:1.42;font-weight:750}.hint{font-size:clamp(15px,1.4vw,22px);color:#537e96;font-weight:700;line-height:1.35}.tiny{font-size:clamp(12px,1vw,15px);color:#678da3}.btn{border:0;border-bottom:5px solid #00000030;border-radius:18px;padding:14px 23px;color:white;font-weight:950;font-size:clamp(18px,1.8vw,25px);box-shadow:0 7px 15px #15457327;transition:transform .12s,filter .12s;min-height:56px}.btn:hover{filter:brightness(1.06);transform:translateY(-2px)}.btn:active{transform:translateY(2px)}.btn:disabled{opacity:.55;filter:grayscale(.45);cursor:not-allowed}.btn.blue{background:linear-gradient(#22b3f3,#0084cd)}.btn.green{background:linear-gradient(#39df82,#0aaa55)}.btn.pink{background:linear-gradient(#ff6dad,#ed2381)}.btn.orange{background:linear-gradient(#ffbd37,#ed7813)}.btn.purple{background:linear-gradient(#ab70f8,#7846d6)}.btn.ghost{background:#ecf7ff;border:2px solid #b8e4fb;color:#1765a1;box-shadow:none}.btn.small{padding:9px 14px;font-size:clamp(14px,1.2vw,18px);min-height:47px;border-bottom-width:3px}.hero-layout{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(330px,.85fr);gap:24px;align-items:center}.hero-picture{width:100%;border-radius:26px;box-shadow:var(--shadow);object-fit:cover;display:block;aspect-ratio:705/338;border:5px solid white}.hero-side{padding:12px}.hero-side .sub{margin-bottom:27px}.feature-chips{display:flex;flex-wrap:wrap;gap:9px;margin:15px 0 27px}.feature-chips span{padding:10px 13px;border-radius:13px;background:#ebf9ff;color:#1a76ad;font-weight:900;font-size:clamp(13px,1.15vw,17px)}.nameinput{width:100%;border:3px solid #a4dcf9;border-radius:16px;min-height:64px;font-size:clamp(22px,2vw,29px);font-weight:900;color:#104b77;padding:12px 18px;background:#f5fbff}.split{display:grid;grid-template-columns: minmax(270px,.78fr) minmax(350px,1.25fr);gap:25px}.avatar-choices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:17px;margin:19px 0}.avatar-option{border:4px solid #d1e9fa;border-radius:23px;background:linear-gradient(170deg,#e3f7ff,#fff);padding:14px 12px;display:flex;flex-direction:column;align-items:center;gap:6px;transition:all .14s}.avatar-option.selected{border-color:var(--pink);background:#fff0f9;box-shadow:0 0 0 4px #ffb7db5c}.avatar-option img{height:clamp(130px,23vw,255px);width:100%;object-fit:contain;filter:drop-shadow(0 7px 7px #356e9438)}.avatar-option strong{font-size:clamp(19px,1.5vw,24px)}.teacher-panel{background:linear-gradient(160deg,#dbfbff,#f6f5ff);border-radius:24px;padding:20px;display:flex;align-items:center;justify-content:flex-start;gap:20px;flex-wrap:wrap}.teacher-panel img{object-fit:contain;height:clamp(170px,23vw,300px);max-width:min(240px,32%);width:auto;flex:0 0 auto}.speech{background:white;border:3px solid #bde5ff;border-radius:23px;padding:16px;font-weight:950;font-size:clamp(19px,2vw,29px);box-shadow:var(--shadow);max-width:100%}.goal-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:28px 0}.goal{border-radius:22px;padding:20px;background:linear-gradient(145deg,#e9faff,#fff);border:3px solid #ccedff;min-height:195px;display:flex;flex-direction:column;gap:11px}.goal b{font-size:clamp(19px,1.9vw,28px)}.goal em{font-size:clamp(15px,1.25vw,19px);font-style:normal;color:#547c96}.goal-num{font-size:32px;font-weight:950;background:#ffcb51;color:#784200;width:56px;height:56px;display:grid;place-items:center;border-radius:50%}.map-layout{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(285px,.72fr);gap:20px}.map-visual{position:relative;align-self:start;overflow:hidden;border:5px solid white;border-radius:25px;box-shadow:var(--shadow);background:#c4f4e4}.map-visual img{width:100%;display:block}.map-visual .name-float{left:49%;bottom:18%}.map-rooms{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.map-room-btn{padding:15px 6px;border:3px solid #c5e3f5;background:white;border-radius:16px;color:var(--navy);font-size:clamp(16px,1.35vw,21px);font-weight:900;min-height:75px}.map-room-btn.available{background:#dfffee;border-color:#8cddbb}.map-room-btn.done{background:#edfff6;border-color:#10b878}.map-room-btn.locked{color:#7c95a9;background:#eff3f6;opacity:.7}.map-room-btn .mini{font-size:13px;display:block;margin-top:3px}.room-layout{display:grid;grid-template-columns:minmax(0,1.48fr) minmax(285px,.67fr);gap:16px}.room-stage{position:relative;width:100%;aspect-ratio:2.28;overflow:hidden;border-radius:24px;border:6px solid #14a8dc;background:#bff3f5;box-shadow:inset 0 0 0 2px white,var(--shadow);isolation:isolate}.room-stage>img{width:100%;height:100%;object-fit:fill;display:block;user-select:none;pointer-events:none}.hotspot{position:absolute;transform:translate(-50%,-50%);border:3px solid white;border-radius:50%;font-size:clamp(15px,1.3vw,24px);background:linear-gradient(#ffb94d,#ff721b);color:white;box-shadow:0 0 0 4px #fff7,0 4px 10px #0005;width:clamp(32px,3.4vw,54px);height:clamp(32px,3.4vw,54px);display:grid;place-items:center;z-index:4;animation:bob 2.1s ease-in-out infinite}.hotspot.visited{background:linear-gradient(#6be995,#119e63);animation:none}.hotspot:hover{transform:translate(-50%,-50%) scale(1.12)}@keyframes bob{0%,100%{box-shadow:0 0 0 5px #fff7,0 4px 10px #0005}50%{box-shadow:0 0 0 9px #ffdf85a6,0 4px 10px #0005}}.player-sprite{position:absolute;z-index:5;bottom:2%;left:9%;width:clamp(50px,6.5vw,100px);height:clamp(84px,10vw,170px);transition:left .6s linear,top .6s linear;pointer-events:none;filter:drop-shadow(0 3px 4px #0006)}.player-sprite img{width:100%;height:100%;object-fit:contain}.player-sprite .name-float{position:absolute;left:50%;top:-20px;transform:translateX(-50%);max-width:140px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;background:#073c80e8;border:2px solid white;padding:4px 8px;color:#fff;border-radius:20px;font-size:clamp(10px,1vw,15px);font-weight:900}.room-side{background:#f3fbff;border:2px solid #d2eefa;border-radius:20px;padding:16px}.room-side h3{font-size:clamp(21px,2.3vw,32px);margin:0 0 8px}.progress-track{height:15px;border-radius:50px;background:#d4e2ee;overflow:hidden;margin:13px 0}.progress-fill{height:100%;background:linear-gradient(90deg,#01bdf2,#20d29d);border-radius:50px;transition:width .2s}.discovery-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px;margin:15px 0}.discovery{border:2px solid #d1e9f5;border-radius:14px;background:white;padding:8px 3px;min-height:107px;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:6px;font-size:clamp(10px,1vw,15px);font-weight:900;color:#6c839a}.discovery img{width:64px;height:58px;object-fit:contain;border-radius:9px;padding:3px;background:#fff}.discovery.found{color:#15598d;border-color:#67dab0;background:#effff5}.discovery.missing img{filter:grayscale(1) brightness(1.4);opacity:.45}.room-bottom{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:17px;flex-wrap:wrap}.modal-backdrop{position:fixed;inset:0;z-index:50;background:#052e5caa;display:grid;place-items:center;padding:20px}.item-dialog{width:min(460px,100%);background:white;border:6px solid #ffffff;border-radius:29px;padding:20px 22px 26px;text-align:center;box-shadow:0 20px 80px #0007;position:relative}.close-modal{position:absolute;right:10px;top:10px;background:#f94165;color:#fff;border:3px solid white;border-radius:50%;width:48px;height:48px;font-size:25px}.dialog-photo{width:min(230px,75%);aspect-ratio:1/1;object-fit:contain;border-radius:25px;border:3px solid #dceffa;background:white;padding:8px}.dialog-word{font-size:clamp(36px,4.4vw,57px);line-height:1.1;text-transform:uppercase;margin:9px 0 17px;color:#0862a3}.sound-btn{width:80px;height:80px;font-size:39px;background:linear-gradient(#40c4ff,#0787da);border:0;border-bottom:5px solid #065985;color:#fff;border-radius:50%;box-shadow:0 7px 15px #0787da5e}.room-head{margin-bottom:15px}.sort-layout{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(300px,.92fr);gap:20px}.sort-basket{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.item-tile{border:3px solid #d0e9fb;background:white;border-radius:16px;padding:9px 6px;font-size:clamp(12px,1.3vw,19px);font-weight:900;color:#07548a;min-height:129px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;touch-action:pan-y}.item-tile img{width:100%;max-width:106px;aspect-ratio:1;object-fit:contain;border-radius:12px;background:#fff;padding:4px}.item-tile.selected{border-color:var(--pink);box-shadow:0 0 0 4px #fda8d88a;background:#fff3f8}.item-tile.placed{border-color:#25b987;background:#e8fff1;opacity:.75}.sort-targets{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.sort-target{font-size:clamp(14px,1.4vw,20px);border:3px dashed #81bddd;border-radius:14px;background:#eaf7ff;padding:12px 7px;min-height:91px;font-weight:900;color:#0b6aa7;display:grid;place-items:center;gap:4px;text-align:center}.sort-target strong{font-size:clamp(17px,1.45vw,22px)}.sort-target.over{background:#a8ffd5;border-color:#18a96b}.sort-target.outdoor{background:#fff2e2;border-color:#eab764;color:#97611c}.sort-target.completed{background:#dffced;border-style:solid;border-color:#1fbd80}.sort-target img{width:53px;height:39px;object-fit:cover;border-radius:6px}.divider{border:0;border-top:2px solid #e3f0f8;margin:16px 0}.quiz-choice{border:3px solid #b5e1fa;border-radius:17px;padding:16px 20px;text-align:left;background:white;font-size:clamp(19px,1.85vw,28px);color:#125782;font-weight:950;min-height:66px}.quiz-choice.correct{background:#ddffee;border-color:#16ae6c}.quiz-choice.wrong{background:#ffedec;border-color:#e84c5b}.quiz-choices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px;margin-top:23px}.quiz-main{max-width:1000px;margin:auto}.quiz-clue{font-size:clamp(26px,3vw,44px);font-weight:900;line-height:1.4;color:#0c447b;margin:22px 0}.result-hero{display:grid;grid-template-columns: minmax(200px,.46fr) 1fr;gap:25px;align-items:center}.result-hero img{max-height:310px;max-width:100%;object-fit:contain}.result-links{display:flex;flex-wrap:wrap;gap:12px;margin:30px 0}.vocab-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:12px}.vocab-card{background:white;border:3px solid #d6edfa;border-radius:16px;padding:10px 5px;font-size:clamp(13px,1.2vw,19px);color:#074c85;font-weight:900}.vocab-card img{width:100%;aspect-ratio:1;object-fit:contain;border-radius:12px;background:#fff;padding:4px}.notice{background:#f0faff;border:2px solid #c9eaff;padding:13px 16px;border-radius:14px;font-weight:750;color:#335e79;font-size:clamp(14px,1.2vw,18px)}.numtag{display:inline-grid;place-items:center;font-size:24px;color:white;background:var(--pink);width:53px;height:53px;border-radius:50%;margin-right:8px}.icon-inline{font-size:1.3em}#toast{position:fixed;bottom:35px;left:50%;transform:translateX(-50%) translateY(110px);background:#063f76;color:white;font-size:clamp(15px,1.4vw,21px);padding:13px 22px;border-radius:25px;box-shadow:var(--shadow);z-index:75;opacity:0;pointer-events:none;transition:all .2s;font-weight:900;text-align:center;min-width:120px}#toast.show{transform:translateX(-50%) translateY(0);opacity:1}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
@media(max-width:1050px){.hero-layout,.map-layout,.room-layout,.sort-layout{grid-template-columns:1fr}.hero-layout{align-items:start}.hero-side{padding:0}.room-side{display:block}.split{grid-template-columns:1fr}.site-head{min-height:73px}.map-visual{max-height:520px}.map-visual img{max-height:520px;object-fit:cover}.discovery-grid{grid-template-columns:repeat(6,minmax(0,1fr))}.goal-grid{gap:10px}}
@media(max-width:700px){.app-shell{padding:5px 6px;gap:7px}.site-head{padding:9px 9px;border-radius:12px;min-height:66px}.brand{gap:7px}.brand-house{font-size:32px}.brand b{font-size:clamp(17px,5vw,23px)}.brand small{font-size:9px;letter-spacing:.3px}.iconbtn{min-width:36px;min-height:36px;font-size:20px;border-radius:9px}.screen-card{padding:13px 12px;min-height:440px;border-radius:19px}.h1{font-size:clamp(30px,9vw,47px)}.h2{font-size:clamp(25px,7vw,37px)}.sub{font-size:18px}.hint{font-size:15px}.hero-layout{gap:13px}.hero-picture{border-radius:15px}.hero-side .sub{margin-bottom:14px}.feature-chips{margin:10px 0 17px}.feature-chips span{font-size:12px}.avatar-choices{gap:8px}.avatar-option{padding:6px}.avatar-option img{height:160px}.teacher-panel{padding:11px;justify-content:center}.teacher-panel img{height:180px;max-width:170px;width:100%}.goal-grid{grid-template-columns:1fr;gap:10px;margin:15px 0}.goal{min-height:0;padding:12px;flex-direction:row;align-items:center}.goal-num{flex-shrink:0;width:44px;height:44px;font-size:22px}.goal b{font-size:18px}.goal em{font-size:13px}.room-stage{border-width:3px;border-radius:13px}.hotspot{font-size:15px;width:35px;height:35px;border-width:2px;box-shadow:0 0 0 2px #fffa}.room-side{padding:10px}.discovery-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.room-head{margin-bottom:9px}.sort-basket{grid-template-columns:repeat(4,minmax(0,1fr));gap:5px}.item-tile{padding:5px 3px;min-height:86px;border-width:2px;font-size:11px}.item-tile img{width:100%;max-width:74px}.sort-targets{gap:6px}.sort-target{padding:7px 3px;min-height:69px;font-size:12px;border-width:2px}.sort-target strong{font-size:14px}.sort-target img{width:34px;height:27px}.quiz-choices{gap:10px}.quiz-choice{min-height:58px;padding:9px;font-size:18px}.quiz-clue{font-size:24px}.result-hero{grid-template-columns:1fr;text-align:center}.result-hero img{max-height:175px}.vocab-grid{grid-template-columns:repeat(3,minmax(0,1fr))}footer{font-size:10px}}
@media(max-width:390px){.brand b{font-size:17px}.brand small{font-size:8px}.hotspot{width:31px;height:31px}.player-sprite{width:43px;height:75px}.btn{font-size:16px;padding:10px 13px}.sort-basket{grid-template-columns:repeat(3,minmax(0,1fr))}}
/* V3: preserve the bright house-adventure identity; fix geometry and touch controls. */
:root{--blue:#087dce;--navy:#123d61;--focus:#005eaa}
*{box-sizing:border-box}html{scroll-behavior:smooth}button,input,select{font:inherit}button{cursor:pointer}button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:4px solid var(--focus);outline-offset:4px}button:disabled{cursor:default}button,select{-webkit-tap-highlight-color:transparent}img{max-width:100%}.split{margin-top:24px;align-items:center}main{min-height:0}.screen-card{min-height:520px}.input-label{display:block;font-weight:800;font-size:22px;margin:22px 0 10px}.notice{line-height:1.5}.tiny{line-height:1.4;color:#46677e}.btn.pink{background:linear-gradient(#8e7df4,#6852bd)}.close-modal{background:#135f97;z-index:2}.btn{font-weight:800}.hero-picture{aspect-ratio:auto;object-fit:contain}.avatar-option.selected{border-color:#1489cb;background:#ecfaff;box-shadow:0 0 0 4px #3cbbe933}.avatar-option{min-height:250px}.teacher-panel{flex-wrap:nowrap;margin:24px 0;gap:28px}.teacher-panel>div{flex:1;min-width:0}.teacher-panel img{height:290px;max-width:200px;width:32%;object-fit:contain}.speech{margin:12px 0 18px}.goal{color:var(--navy);text-align:left;cursor:pointer;position:relative;font:inherit}.goal:hover{border-color:#159bd3;background:#e8f9ff}.goal-num{background:#d7f5ff;color:#0868a1}.goal-speaker{color:#076ca8;font-size:16px;font-weight:800}.goal b{line-height:1.35}.goal-grid{margin:18px 0 25px}.sound-panel{background:#fff;border:2px solid #bde4f6;border-radius:20px;padding:20px;box-shadow:var(--shadow);max-width:540px;margin-left:auto}.sound-panel[hidden]{display:none}.sound-panel h2{margin:0;font-size:22px}.sound-panel label{display:flex;align-items:center;gap:12px;margin:14px 0;font-weight:700}.sound-panel input[type=checkbox]{width:24px;height:24px;accent-color:#087dce}.sound-panel input[type=range]{width:100%;min-height:36px}.sound-panel label[for=volume]{justify-content:space-between}#audio-status{font-size:14px;color:#135b84;line-height:1.4}#audio-status:empty{display:none}
.room-stage{border:3px solid #20aade;border-radius:20px;overflow:hidden;transition:height .2s}.room-stage>img{object-fit:contain;height:100%;width:100%}.hotspot{width:44px;height:44px;border:0;box-shadow:none;background:transparent;animation:none;z-index:6;padding:0;display:grid;place-items:center}.hotspot>span{display:grid;place-items:center;width:27px;height:27px;border-radius:50%;border:2px solid white;background:#0875bb;box-shadow:0 1px 5px #042f65a0;font-size:15px;font-weight:900;transition:transform .2s}.hotspot.visited{background:transparent}.hotspot.visited>span{width:17px;height:17px;font-size:11px;background:#12805b;border-width:1.5px}.hotspot:hover,.hotspot.active{transform:translate(-50%,-50%)}.hotspot:hover>span,.hotspot.active>span{transform:scale(1.15);background:#7644bc}.object-links{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:3;overflow:hidden}.object-link{display:none}.object-link.active{display:block}.object-link line{stroke:white;stroke-width:3;vector-effect:non-scaling-stroke;filter:drop-shadow(0 1px 1px #00355a)}.object-link ellipse{fill:#ffffff16;stroke:#70ecff;stroke-width:2.5;vector-effect:non-scaling-stroke}.room-tools{margin-top:12px;display:grid;gap:12px;font-size:16px;line-height:1.5}.room-tools>.row{gap:7px}.room-tools .btn{font-size:14px}.room-stage.enlarged{width:100%;aspect-ratio:auto!important;height:clamp(300px,60vh,650px)}.room-stage.enlarged>img{object-fit:fill}.room-stage.enlarged{overflow:visible}.room-stage.enlarged:before{content:'Enlarged view';position:absolute;left:8px;top:8px;z-index:8;background:#fff;border-radius:6px;padding:3px 6px;color:#164766;font-size:12px}
.player-sprite{width:12%;max-width:94px;min-width:45px;height:auto;aspect-ratio:3/4;bottom:1%;z-index:4;transform:translateX(-50%);transition:left .7s linear;pointer-events:none;filter:drop-shadow(1px 3px 2px #002b4566)}.sprite-frame{display:block;width:100%;aspect-ratio:3/4;background-size:400% 100%;background-repeat:no-repeat;background-position:0% 0%;transform-origin:50% 85%}.sprite-frame.girl{background-image:url('assets/characters/girl-sheet.webp')}.sprite-frame.boy{background-image:url('assets/characters/boy-sheet.webp')}.avatar-option .sprite-frame{width:150px;height:200px}.sprite-frame.face-left{transform:scaleX(-1)}.sprite-frame.walking{animation:walk-frames .65s steps(1,end) infinite,walk-bob .32s ease-in-out infinite}.sprite-frame.reach{background-position:100% 0%;animation:reach-point .7s ease-out}.sprite-frame.face-left.reach{animation:none}.player-sprite .name-float{top:-20px;z-index:2;font-size:12px;padding:3px 8px;max-width:135px;background:#084a80;border-width:1.5px}@keyframes walk-frames{0%,50%,100%{background-position:0% 0%}25%{background-position:33.3333% 0%}75%{background-position:66.6667% 0%}}@keyframes walk-bob{0%,100%{translate:0 0}50%{translate:0 -3px}}@keyframes reach-point{0%{rotate:0deg}50%{rotate:-3deg}100%{rotate:0deg}}
.object-photo{width:100%;height:100px;display:block;overflow:hidden;object-fit:contain;background:#eef7fb;border-radius:9px}.discovery{position:relative;min-height:115px;padding:6px;gap:7px;color:#164a70;font-size:15px;line-height:1.2}.discovery .object-photo{width:100%;height:66px;padding:0}.discovery img{opacity:1;filter:none}.card-number{position:absolute;left:5px;top:5px;background:#0869a3;color:white;border:1px solid white;border-radius:50%;width:19px;height:19px;display:grid;place-items:center;font-size:11px;z-index:1}.discovery.found .card-number{background:#14835d}.room-side h2{font-size:24px;margin:0;line-height:1.3}.room-side h2 b{color:#0677a5}.room-side .btn{width:100%;font-size:17px;padding:12px 10px}.room-side .notice{font-size:14px;padding:12px}.discovery-grid{gap:7px}.modal-open{overflow:hidden}.modal-backdrop{padding:12px;z-index:60}.item-dialog{max-height:calc(100dvh - 24px);overflow:auto;padding:22px;width:min(520px,100%)}.item-dialog>.pill{margin:12px 32px 14px 0;font-size:13px}.dialog-photo{display:block;width:100%;height:210px;aspect-ratio:auto;border-radius:18px;padding:0;background:#eef7fb;overflow:hidden;object-fit:contain}.dialog-word{text-transform:none;overflow-wrap:anywhere;font-size:clamp(30px,4vw,48px);margin:16px 0 8px}.dialog-actions{justify-content:center}.item-dialog .sub{font-size:20px;margin:0 0 18px}
.sort-layout{margin-top:20px}.sort-basket{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.item-tile{position:relative;font-size:17px;min-height:140px;padding:8px}.item-tile .object-photo{height:105px;width:100%;max-width:100%;aspect-ratio:auto;padding:0}.item-tile.selected{border-color:#087fc6;box-shadow:0 0 0 3px #54c4ea66;background:#eafbff}.item-tile.placed{opacity:.65}.placed-check{position:absolute;top:6px;right:7px;background:#187b55;color:white;border-radius:50%;width:23px;height:23px}.sort-target{font-size:14px;min-height:100px;border-color:#6babce}.sort-target strong{font-size:18px}.sort-target.outdoor{grid-column:1/-1;min-height:70px;background:#e8faef;color:#1a6554;border-color:#70bda3}.sort-target span{line-height:1.3}.sort-navigation{margin-top:18px}.selection-note{font-size:17px;font-weight:700;color:#0b5e8f}.sort-target.over{outline:3px solid #10b388}.quiz-clue{margin:32px 0;font-size:clamp(25px,3vw,38px)}.quiz-choice.wrong{background:#fff4dc;border-color:#c49a29}.quiz-main>.notice{margin:22px 0}.quiz-choice:disabled{opacity:1}.reflection-screen{max-width:1000px;margin:auto}.reflection-screen fieldset{border:2px solid #c6e7f6;border-radius:18px;padding:20px;margin:28px 0;background:#f6fcff;min-width:0}.reflection-screen legend{font-size:24px;font-weight:800;padding:0 6px;line-height:1.4}.reflection-screen legend>span{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:#087cc2;color:white;margin-right:7px}.reflection-checks{display:grid;grid-template-columns:1fr 1fr;gap:10px}.reflection-checks label{display:flex;gap:12px;align-items:center;min-height:52px;font-size:18px;background:#fff;padding:10px;border:1px solid #c8e2ef;border-radius:10px;cursor:pointer}.reflection-checks input{width:23px;height:23px;flex-shrink:0;accent-color:#087dce}.reflection-screen select{display:block;width:100%;font-size:18px;min-height:56px;border:2px solid #8abedb;border-radius:10px;padding:10px;margin-top:12px;color:#123d61;background:white}.result-hero{grid-template-columns:minmax(160px,.45fr) 1fr}.result-hero>img{width:100%;max-height:420px;object-fit:contain;filter:drop-shadow(0 10px 12px #123e611a)}.result-links{justify-content:center}.developer-credit{text-align:center;padding:20px;border-radius:15px;background:#e6f5ff;font-size:18px;line-height:1.7;margin-top:24px}.reflection-summary{border:1px solid #bbdfee;padding:16px;border-radius:14px;line-height:1.6}.reflection-summary summary{cursor:pointer;font-weight:800}.vocab-tabs{margin:20px 0}.vocab-card{font-size:17px}.vocab-card .object-photo{height:140px;margin-bottom:12px}.vocab-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.close-modal{width:40px;height:40px}.result-hero .speech{font-size:22px}#toast{max-width:calc(100% - 24px);font-size:16px;bottom:18px}#confetti{position:fixed;inset:0;pointer-events:none;z-index:70;overflow:hidden}#confetti i{position:absolute;width:9px;height:15px;top:-20px;animation:confetti-fall 2.3s var(--delay) ease-in forwards}@keyframes confetti-fall{to{transform:translateY(110vh) rotate(var(--turn))}}
@media(min-width:1500px){.room-stage{min-height:440px}.player-sprite{max-width:115px}.hotspot>span{width:32px;height:32px;font-size:18px}.hotspot.visited>span{width:20px;height:20px}.discovery{font-size:17px}.discovery .object-photo{height:95px}}
@media(max-width:1050px){.discovery-grid{grid-template-columns:repeat(6,minmax(0,1fr))}.room-side .btn{width:auto}.room-stage{min-height:0}.room-tools .row{flex-wrap:wrap}.sort-layout{grid-template-columns:1fr}.sort-targets{grid-template-columns:repeat(3,minmax(0,1fr))}.sort-basket{grid-template-columns:repeat(4,minmax(0,1fr))}.teacher-panel img{max-width:180px;height:260px}}
@media(max-width:700px){.screen-card{min-height:0;padding:15px 12px}.brand b{font-size:18px}.brand small{font-size:8px}.brand-house{font-size:29px}.site-head{padding:12px 10px}.h1{font-size:34px;letter-spacing:-1px}.h2{font-size:27px}.pill{font-size:12px;padding:7px 10px}.sub{font-size:18px}.hint{font-size:15px}.btn{font-size:17px;min-height:48px;padding:12px 15px}.btn.small{font-size:14px}.hero-side{padding:0}.hero-layout{gap:8px}.feature-chips{gap:6px}.feature-chips span{font-size:12px;padding:8px}.avatar-option{min-height:220px}.avatar-option .sprite-frame{width:135px;height:180px}.teacher-panel{flex-direction:column;gap:5px;padding:14px;margin:20px 0}.teacher-panel img{width:140px;max-width:140px;height:210px}.teacher-panel .h1{font-size:31px}.teacher-panel>div{width:100%;text-align:center}.speech{font-size:20px}.goal{display:grid;grid-template-columns:40px 1fr;padding:14px 12px;gap:8px 12px}.goal-num{width:38px;height:38px;grid-row:1/3}.goal b{font-size:18px}.goal-speaker{font-size:14px;grid-column:2}.goal-grid{gap:12px}.room-head{gap:8px}.room-head .hint{margin:8px 0}.room-head .row{gap:6px}.room-tools{font-size:14px}.room-stage{border-radius:12px}.hotspot{width:40px;height:40px}.hotspot>span{width:23px;height:23px;font-size:13px}.hotspot.visited>span{width:15px;height:15px;font-size:10px}.player-sprite{min-width:36px;width:12%;max-width:64px}.player-sprite .name-float{font-size:10px;max-width:95px;top:-14px;padding:1px 5px}.discovery-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.discovery{font-size:15px;min-height:115px}.discovery .object-photo{height:75px}.room-side h2{font-size:22px}.room-side .btn{width:100%}.room-tools .btn{font-size:12px;padding:8px;min-height:42px}.room-stage.enlarged{height:320px}.dialog-photo{height:170px}.item-dialog{padding:16px 14px}.item-dialog>.pill{margin-top:16px;font-size:11px}.item-dialog .tiny{font-size:12px}.dialog-word{font-size:32px}.dialog-actions .btn{font-size:17px}.sort-basket{grid-template-columns:repeat(3,minmax(0,1fr));gap:7px}.item-tile{font-size:14px;min-height:124px;padding:5px}.item-tile .object-photo{height:82px}.sort-targets{grid-template-columns:1fr 1fr;gap:8px}.sort-target{min-height:90px;padding:9px 5px}.sort-target strong{font-size:16px}.sort-target span{font-size:12px}.sort-target img{width:48px;height:32px}.sort-navigation .btn{font-size:14px}.selection-note{font-size:15px}.sort-layout .h2{font-size:23px}.quiz-choices{grid-template-columns:1fr 1fr;gap:10px}.quiz-choice{font-size:17px;min-height:66px}.quiz-clue{font-size:25px;line-height:1.45;margin:25px 0}.reflection-checks{grid-template-columns:1fr}.reflection-screen fieldset{padding:16px 10px;margin:24px 0}.reflection-screen legend{font-size:20px}.reflection-screen select{font-size:16px;padding:8px;white-space:normal}.reflection-checks label{font-size:16px}.reflection-screen .h1{font-size:31px}.reflection-screen .btn{width:100%}.result-hero{grid-template-columns:1fr;text-align:center;gap:12px}.result-hero>img{height:260px;max-height:260px}.result-hero .speech{font-size:19px}.result-links{gap:12px}.result-links .btn{width:100%}.developer-credit{font-size:15px;padding:15px 8px}.vocab-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.vocab-card{font-size:16px}.vocab-card .object-photo{height:120px}.sound-panel{width:100%}footer{font-size:11px;line-height:1.5;padding:12px}}
@media(max-height:500px){.modal-backdrop{padding:8px}.item-dialog{display:grid;grid-template-columns:1fr 1fr;gap:5px 18px;align-items:center;width:min(680px,100%);padding:16px;max-height:calc(100dvh - 16px)}.item-dialog>.pill{grid-column:1/-1;margin:0 30px 5px 0;justify-self:start}.dialog-photo{grid-column:1;grid-row:2/5;height:170px}.dialog-word{grid-column:2;font-size:29px;margin:4px 0}.item-dialog .sub{grid-column:2;font-size:16px;margin:0}.dialog-actions{grid-column:2;gap:7px}.dialog-actions .btn{font-size:14px;padding:8px;min-height:42px}.item-dialog .tiny{grid-column:1/-1;margin:5px 0}.close-modal{right:4px;top:4px;width:34px;height:34px}.teacher-panel img{height:210px}.result-hero>img{max-height:250px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
.room-viewport{width:100%;overflow:auto;border-radius:16px;scrollbar-width:thin}.room-stage.enlarged{width:max(100%,680px);aspect-ratio:var(--room-ratio)!important;height:auto!important;overflow:hidden}.room-stage.enlarged>img{object-fit:contain}.hotspot{width:44px;height:44px}
@media(max-width:700px){.hotspot{width:30px;height:30px}.room-stage.enlarged .hotspot{width:44px;height:44px}}
.item-tile{touch-action:none;user-select:none}.item-tile img,.item-tile svg{pointer-events:none}.drag-ghost{position:fixed;z-index:90;pointer-events:none;transform:translate(-50%,-125%);background:#075e94;color:white;font:700 18px Arial;padding:12px 18px;border:2px solid white;border-radius:14px;box-shadow:0 5px 20px #123e6155}
.teacher-panel>img,.result-hero>img{display:block;object-fit:contain;object-position:center;justify-self:center;align-self:center;margin:0 auto}
@media(max-width:700px){.teacher-panel{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}.teacher-panel>img{width:auto;height:240px;max-width:100%;max-height:none}.teacher-panel>div{width:100%;min-width:0}.teacher-panel .row{justify-content:center}.result-hero>img{width:auto;max-width:100%;height:260px;max-height:none;object-fit:contain}}
@media(min-width:900px){.reflection-screen{max-width:1160px}.reflection-screen form{display:grid;grid-template-columns:1fr 1fr;gap:12px 18px}.reflection-screen fieldset{margin:12px 0;padding:15px}.reflection-screen fieldset:first-child,.reflection-screen form>.notice,.reflection-screen form>#reflection-message,.reflection-screen form>.btn{grid-column:1/-1}.reflection-screen form>.notice{margin:0}.reflection-screen form>#reflection-message:empty{display:none}.reflection-screen form>.btn{justify-self:end}}