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19px;font-size:15px;font-weight:900;font-family:inherit;background:var(--grad-amber);color:#4a3000;box-shadow:0 6px 0 var(--amber-deep),var(--shadow-sm);cursor:pointer;transition:transform .12s var(--spring),box-shadow .12s ease}.hint-fab:hover{transform:translateY(-2px)}.hint-fab:active{transform:translateY(2px);box-shadow:0 3px 0 var(--amber-deep)}.bear-layer{position:fixed;inset:0;z-index:55;pointer-events:none}.bear{position:fixed;left:0;bottom:12px;z-index:62;filter:drop-shadow(0 10px 14px rgba(31,39,31,.2));animation:bear-walk 5.2s cubic-bezier(.45,0,.4,1) forwards}.bear-arm{transform-box:fill-box;transform-origin:50% 0;animation:bear-wave .4s ease-in-out 1.9s 4 alternate}.note{position:fixed;left:50%;bottom:104px;z-index:61;width:min(86vw,330px);padding:24px 22px 28px;color:#4a3a22;background:repeating-linear-gradient(transparent,transparent 31px,#e7d9b8 32px),linear-gradient(180deg,#fffdf3,#fdf6e3);border-radius:4px;box-shadow:0 1px 0 #efe4c6,0 22px 45px 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var(--spring)}.stat-tile:hover{transform:translateY(-3px)}.stat-tile-top{display:flex;align-items:center;justify-content:center;gap:5px}.stat-tile-top .ico{width:20px;height:20px}.stat-tile-val{font-family:var(--display);font-weight:700;font-size:22px;color:var(--ink)}.stat-tile-label{font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-soft);margin-top:2px}.quests-card{background:var(--surface);border:2px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:16px 18px;margin-bottom:20px}.quests-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.quests-title{font-family:var(--display);font-weight:700;font-size:18px}.quests-meta{font-weight:800;font-size:13px;color:var(--green-deep)}.quest{display:flex;align-items:center;gap:12px;padding:9px 0;border-top:1px solid var(--line)}.quest:first-of-type{border-top:none}.quest-check{flex:0 0 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16px;font-weight:800;color:var(--coral)}.dance-layer{position:fixed;inset:0;z-index:60;pointer-events:none;overflow:hidden}.dance-bear{position:fixed;left:50%;bottom:26px;transform:translateX(-50%);transform-origin:50% 100%;animation:bear-dance 9s cubic-bezier(.4,0,.4,1) forwards}.dance-bear .bear{position:static;left:auto;bottom:auto;animation:none;filter:drop-shadow(0 12px 16px rgba(31,39,31,.22))}.dance-bear .bear-arm{animation:dance-arm .42s ease-in-out infinite alternate}.dance-tag{position:absolute;top:-34px;left:50%;transform:translateX(-50%);background:var(--grad-festive);color:#5a2614;font-family:var(--display);font-weight:700;font-size:16px;padding:4px 12px;border-radius:999px;box-shadow:var(--shadow-sm);white-space:nowrap;animation:tag-wobble .6s ease-in-out infinite alternate}.dnote{position:absolute;font-size:30px;font-weight:900;animation:note-float 1.1s ease-in-out infinite}.dnote.a{left:-28px;top:14px;color:var(--coral)}.dnote.b{right:-28px;top:30px;color:var(--green);animation-delay:.45s}@keyframes bear-dance{0%{transform:translateX(calc(-50% - 80vw)) translateY(0) rotate(-6deg);opacity:0}7%{transform:translateX(-50%) translateY(0) rotate(0deg);opacity:1}13%{transform:translateX(-50%) translateY(-24px) rotate(-8deg) scale(1.05)}19%{transform:translateX(-50%) translateY(0) rotate(8deg)}25%{transform:translateX(-50%) translateY(-24px) rotate(-8deg) scale(1.05)}31%{transform:translateX(-50%) translateY(0) rotate(8deg)}37%{transform:translateX(-60%) translateY(-12px) rotate(-12deg)}43%{transform:translateX(-40%) translateY(-12px) rotate(12deg)}50%{transform:translateX(-50%) translateY(-8px) rotate(1turn) scale(1.06)}57%{transform:translateX(-60%) translateY(-14px) rotate(1turn)}63%{transform:translateX(-40%) translateY(0) rotate(376deg)}69%{transform:translateX(-50%) translateY(-26px) rotate(353deg) scale(1.06)}75%{transform:translateX(-50%) 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rgba(20,90,50,.22))}.tree-cap{z-index:2;background:rgba(255,255,255,.78)}.grow-bar{width:86%;height:6px;background:rgba(40,32,16,.1);border-radius:999px;margin:0 auto 6px;overflow:hidden}.grow-fill{height:100%;background:var(--grad-green);border-radius:999px;transition:width .6s var(--ease)}.plot-btn{font-size:12.5px;gap:2px}.plot-add,.plot-btn{display:flex;align-items:center;justify-content:center}.plot-add{flex-direction:column;gap:6px;min-height:150px;border:2px dashed var(--line-strong);background:rgba(255,255,255,.45);color:var(--ink-soft);font-family:inherit;cursor:pointer;transition:transform .14s var(--spring),border-color .15s ease,color .15s ease}.plot-add:hover{transform:translateY(-2px);border-color:var(--green);color:var(--green-deep)}.plot-add-plus{font-size:32px;font-weight:900;line-height:1}.plot-add-label{font-weight:800;font-size:12px;display:inline-flex;align-items:center;gap:2px}.shop-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:12px;gap:12px;margin-bottom:8px}.shop-item{position:relative;background:var(--surface);border:2px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:16px;display:flex;flex-direction:column;gap:4px}.shop-item-title{font-weight:900}.shop-item-sub{color:var(--ink-soft);font-weight:700;font-size:12.5px;flex:1 1;margin-bottom:10px;line-height:1.4}.shop-item .btn{width:100%}.shop-tag{position:absolute;top:-10px;right:14px;background:var(--grad-coral);color:#fff;font-size:10px;font-weight:900;padding:3px 9px;border-radius:999px;text-transform:uppercase;letter-spacing:.04em;box-shadow:var(--shadow-sm)}.qcount{font-size:13px;color:var(--ink-soft);background:var(--bg-soft)}.combo-chip,.qcount{flex:0 0 auto;font-weight:900;border-radius:999px;padding:4px 10px}.combo-chip{display:inline-flex;align-items:center;gap:4px;font-size:14px;color:var(--coral-deep);background:var(--coral-soft);animation:pop .4s var(--spring)}.combo-chip .ico{width:16px;height:16px}.option{display:flex;align-items:center;gap:12px}.opt-letter{flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:var(--bg-soft);border:1.5px solid var(--line-strong);display:grid;place-items:center;font-weight:900;font-size:13px;color:var(--ink-soft);transition:all .12s ease}.option:hover:not(:disabled) .opt-letter{border-color:var(--green);color:var(--green-deep)}.option.correct .opt-letter{background:var(--green);color:#fff;border-color:var(--green)}.option.wrong .opt-letter{background:var(--danger);color:#fff;border-color:var(--danger)}.opt-text{flex:1 1}.tab-ico{display:inline-flex;align-items:center;justify-content:center}.tab-ico svg{width:23px;height:23px}.garden-scene{position:relative;height:246px;overflow:hidden;border-radius:var(--radius-lg);border:2px solid var(--line);box-shadow:var(--shadow-sm);display:block;padding:0;margin-bottom:14px}.sky{z-index:0}.sky,.sky-layer{position:absolute;inset:0}.sky-day{background:linear-gradient(180deg,#aee9ff,#d8f6e0 55%,#bdebc6);animation:skyDay var(--sky-cycle,64s) linear infinite}.sky-night{background:linear-gradient(180deg,#0b1340,#25306b 58%,#2b3a52);opacity:0;animation:skyNight var(--sky-cycle,64s) linear infinite}.moon,.sun{position:absolute;top:50%;left:10%}.sun{width:46px;height:46px;background:radial-gradient(circle at 40% 38%,#fff3b0,#ffd23f 65%,#ffb01f);box-shadow:0 0 28px 10px rgba(255,211,63,.5);animation:sunArc var(--sky-cycle,64s) linear infinite}.moon,.sun{border-radius:50%}.moon{width:38px;height:38px;background:radial-gradient(circle at 38% 36%,#ffffff,#e7ecf7 70%,#c8d2e8);box-shadow:0 0 22px 6px rgba(220,230,255,.4);opacity:0;animation:moonArc var(--sky-cycle,64s) linear infinite}.moon-crater{position:absolute;border-radius:50%;background:rgba(150,165,200,.45)}.moon-crater.c1{width:8px;height:8px;top:8px;left:9px}.moon-crater.c2{width:5px;height:5px;top:20px;left:22px}.moon-crater.c3{width:6px;height:6px;top:24px;left:10px}.stars{inset:0;opacity:0;animation:starsFade var(--sky-cycle,64s) linear infinite}.star,.stars{position:absolute}.star{width:3px;height:3px;border-radius:50%;background:#fff;box-shadow:0 0 4px #fff;animation:twinkle 3s ease-in-out infinite}.shooting-star{position:absolute;top:14%;left:78%;width:64px;height:2px;border-radius:2px;background:linear-gradient(90deg,transparent,#ffffff);opacity:0;animation:shoot var(--sky-cycle,64s) linear infinite}.forest{position:absolute;inset:0;z-index:1}.forest-tree{position:absolute;bottom:2px;transform-origin:bottom center}.forest-tree .tree-svg{width:150px;height:auto;filter:drop-shadow(0 10px 12px rgba(20,90,50,.18))}.tree-cap{position:absolute;left:12px;bottom:12px;z-index:3;text-align:left;background:rgba(255,255,255,.82);backdrop-filter:blur(5px);-webkit-backdrop-filter:blur(5px);padding:6px 12px;border-radius:14px;box-shadow:var(--shadow-sm);margin:0}.tree-cap b{display:block;color:var(--green-deep);font-size:14px}.tree-cap span{color:var(--ink-soft);font-weight:700;font-size:11.5px}.critters{position:absolute;inset:0;z-index:2;pointer-events:none}.g-apple{position:absolute;left:46%;top:-12px;filter:drop-shadow(0 3px 3px rgba(0,0,0,.18))}.g-apple.fall{animation:appleFall 1.2s cubic-bezier(.5,0,.8,1) forwards}.g-hog{position:absolute;bottom:14px;left:-72px}.g-hog.in{animation:hogIn 3s linear forwards}.g-hog.out{left:42%;animation:hogOut 3.2s linear forwards}.g-hog .hog-svg{display:block;animation:hogBob .4s ease-in-out infinite alternate}.g-apple-onback{position:absolute;left:18px;top:-10px}.plot.rare{border-color:var(--amber);background:linear-gradient(0deg,#fff5d6,var(--surface))}.plot.rare .ready-badge{background:var(--grad-amber);color:#4a3000}.rare-sparkle{transform-box:fill-box;transform-origin:center;animation:sparkle 1.6s ease-in-out infinite}@keyframes skyDay{0%,38%{opacity:1}50%{opacity:0}88%{opacity:0}to{opacity:1}}@keyframes skyNight{0%,38%{opacity:0}50%{opacity:1}88%{opacity:1}to{opacity:0}}@keyframes sunArc{0%{left:6%;top:64%;opacity:0}6%{opacity:1}25%{left:48%;top:12%}44%{left:90%;top:60%;opacity:1}50%{left:94%;top:72%;opacity:0}to{left:6%;top:64%;opacity:0}}@keyframes moonArc{0%,50%{left:6%;top:64%;opacity:0}56%{opacity:1}72%{left:48%;top:14%}94%{left:90%;top:60%;opacity:1}to{left:90%;top:66%;opacity:0}}@keyframes starsFade{0%,42%{opacity:0}52%{opacity:1}86%{opacity:1}96%{opacity:0}to{opacity:0}}@keyframes twinkle{0%,to{opacity:.35;transform:scale(.8)}50%{opacity:1;transform:scale(1.15)}}@keyframes shoot{0%,70%{opacity:0;transform:translate(0) rotate(28deg)}71%{opacity:1;transform:translate(0) rotate(28deg)}77%{opacity:1;transform:translate(-160px,86px) rotate(28deg)}79%,to{opacity:0;transform:translate(-160px,86px) rotate(28deg)}}@keyframes appleFall{0%{top:-12px}72%{top:calc(100% - 42px)}84%{top:calc(100% - 34px)}to{top:calc(100% - 40px)}}@keyframes hogIn{0%{left:-72px}to{left:42%}}@keyframes hogOut{0%{left:42%}to{left:calc(100% + 64px)}}@keyframes hogBob{0%{transform:translateY(0)}to{transform:translateY(-3px)}}@keyframes sparkle{0%,to{opacity:.3;transform:scale(.7)}50%{opacity:.9;transform:scale(1.15)}}.type-source{font-size:24px}.type-input{width:100%;margin-top:auto;border:2px solid var(--line-strong);border-radius:14px;padding:15px 18px;font-size:19px;font-weight:800;font-family:inherit;background:var(--bg-soft);outline:none;transition:border-color .15s ease,background .15s ease}.type-input:focus{border-color:var(--green);background:#fff}.type-input:disabled{opacity:.85}.lesson-row.exam{border-color:var(--grape);background:linear-gradient(180deg,#f6edff,var(--surface) 72%)}.lesson-row.exam .node{background:var(--grad-grape);box-shadow:0 5px 0 #6f37b0}.lesson-row.exam .go{color:var(--grape)}.exam-tag{display:inline-block;margin-left:8px;vertical-align:2px;background:var(--grad-grape);color:#fff;font-size:10px;font-weight:900;letter-spacing:.05em;text-transform:uppercase;padding:2px 8px;border-radius:999px}@media (max-width:480px){.app{padding:18px 14px 104px}.brand{font-size:20px}.stats{gap:6px}.stat-pill{font-size:14px;padding:5px 10px 5px 7px}.hero h1{font-size:28px}.ex-question{font-size:26px}.feedback{margin-left:-14px;margin-right:-14px}.stat-strip{gap:8px}.stat-tile{padding:11px 4px}.stat-tile-val{font-size:19px}.stat-tile-label{font-size:10px;letter-spacing:.02em}.hero-mascot,.hero-mascot .bear{width:78px}.hero-title{font-size:19px}.ach-grid{gap:8px}}@media (prefers-reduced-motion:reduce){*,:after,:before{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}}