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184px);margin:0 auto;display:flex;position:relative}.game-hub>span{letter-spacing:2px;color:#35d6a3;font-size:10px;font-weight:900}.game-hub>h1{letter-spacing:-3px;text-shadow:0 4px 30px #000;max-width:610px;margin:14px 0 10px;font-size:clamp(46px,7vw,78px);line-height:.98}.game-hub>p{color:#abc0ca;max-width:540px;font-size:16px;line-height:1.6}.mode-grid{text-align:left;grid-template-columns:repeat(3,1fr);gap:18px;width:100%;margin-top:85px;display:grid}.mode-grid>button{color:#fff;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);cursor:pointer;background:linear-gradient(145deg,#071526e8,#0b1833d1);border:1px solid #60dff044;border-radius:10px;flex-direction:column;align-items:flex-start;min-height:290px;padding:28px;transition:all .2s;display:flex}.mode-grid>button:hover{border-color:#54f0e0;transform:translateY(-6px);box-shadow:0 22px 60px #0009,0 0 32px #176ee933}.mode-grid i{color:#58f5e8;background:linear-gradient(145deg,#17dcd529,#8d3ef13d);border:1px solid #54f0e044;border-radius:14px;place-items:center;width:55px;height:55px;margin-bottom:25px;font-size:24px;font-style:normal;display:grid}.mode-grid small{letter-spacing:1.5px;color:#54e8df;font-size:8px;font-weight:900}.mode-grid b{margin:9px 0;font-size:22px}.mode-grid p{color:#9fb7c8;flex:1;font-size:12px;line-height:1.6}.mode-grid span{color:#59f2e6;font-size:12px;font-weight:900}.hub-facts{color:#9eb3be;justify-content:flex-start;gap:28px;margin-top:27px;font-size:10px;display:flex}.hub-facts span:before{content:"✓";color:#35d6a3;margin-right:7px}.finish-card .secondary{color:#294553;background:#fff;border:1px solid #cbd9db}.cards-game{width:min(760px,100%);margin:20px auto;position:relative}.cards-game>header{color:#fff;letter-spacing:1.5px;justify-content:space-between;margin-bottom:18px;font-size:10px;font-weight:900;display:flex}.cards-game>header span{color:#35d6a3}.cards-game>header button{color:#bdf8e6;cursor:pointer;background:0 0;border:1px solid #35d6a3;padding:8px 12px;font-size:10px;font-weight:900}.learning-card-list{grid-template-columns:repeat(4,1fr);gap:12px;max-height:72vh;padding:4px;display:grid;overflow:auto}.learning-card-list button{cursor:pointer;color:#173847;background:#fff;border:2px solid #0000;border-radius:9px;padding:8px;font-weight:800}.learning-card-list button.active{border-color:#35d6a3}.learning-card-list img{aspect-ratio:1.4;object-fit:cover;border-radius:5px;width:100%;margin-bottom:7px;display:block}.learning-card-list span{font-size:11px}.study-card{text-align:center;cursor:pointer;background:#fff;border-radius:14px;flex-direction:column;justify-content:center;align-items:center;min-height:420px;padding:55px;transition:all .3s;display:flex;box-shadow:0 25px 70px #0004}.study-card.revealed{background:#ecfaf5}.study-card img{object-fit:contain;border-radius:8px;width:100%;max-height:500px;display:block}.study-card:has(img){padding:24px}.study-card:has(img)>span{margin-top:12px}.study-card small{letter-spacing:2px;color:#168f73;font-size:9px;font-weight:900}.study-card h2{margin:24px 0;font-size:clamp(26px,5vw,40px);line-height:1.3}.study-card p{color:#55717e;line-height:1.6}.study-card>span{color:#8598a1;margin-top:25px;font-size:10px}.cards-game>footer{justify-content:space-between;margin-top:16px;display:flex}.cards-game>footer button{color:#092638;cursor:pointer;background:#35d6a3;border:0;padding:14px 20px;font-weight:900}.cards-game>footer button:disabled{opacity:.35}@media (max-width:760px){.learning-card-list{grid-template-columns:repeat(2,1fr)}.quiz-setup{padding:30px 20px}.quiz-options{grid-template-columns:1fr}.quiz-summary{flex-direction:column;align-items:flex-start;gap:6px}.share-result{grid-template-columns:1fr}.share-result b,.share-result small{grid-column:auto}.mode-grid{grid-template-columns:1fr}.mode-grid>button{min-height:220px}.hub-facts{flex-direction:column;gap:10px}.study-card{min-height:370px;padding:30px 20px}.b2-nav>div{gap:10px}.change-game{font-size:9px}}