.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:100000;background:#fff9;justify-content:center;align-items:center;width:100vw;height:100vh;padding:20px;display:flex;position:fixed;inset:0}.modal-content{background:#fffffff2;border-radius:20px;flex-direction:column;width:100%;max-width:800px;height:800px;max-height:90vh;display:flex;overflow:hidden;box-shadow:0 20px 40px #0000001a}.modal-header{border-bottom:1px solid var(--glass-border,#0000001a);justify-content:space-between;align-items:center;padding:20px 24px;display:flex}.modal-title{align-items:center;gap:12px;display:flex}.modal-title h2{margin:0;font-size:1.5rem;font-weight:700}.close-btn{color:#666;cursor:pointer;background:0 0;border:none;transition:all .2s}.close-btn:hover{color:#000;background:#0000000d}.modal-body{flex:1;display:flex;overflow:hidden}.class-sidebar{border-right:1px solid var(--glass-border,#0000001a);background:#00000005;flex-direction:column;width:250px;display:flex}.class-sidebar h3{text-transform:uppercase;letter-spacing:1px;color:#666;padding:20px 24px 10px;font-size:.85rem}.class-list{flex:1;padding:0 12px 20px;overflow-y:auto}.class-btn{text-align:left;color:#333;cursor:pointer;background:0 0;border:none;border-radius:8px;justify-content:space-between;align-items:center;width:100%;margin-bottom:4px;padding:12px 16px;font-size:1rem;transition:all .2s;display:flex}.class-selected-badge{color:#fff;background:#29619f;border-radius:12px;padding:2px 8px;font-size:.75rem;font-weight:700;box-shadow:0 2px 4px #0000001a}.class-btn:hover{background:#0000000d}.class-btn.active{color:#29619f;background:#5893d41a;border-left:3px solid #29619f;font-weight:600}.student-area{flex-direction:column;flex:1;padding:20px 24px;display:flex;overflow:hidden}.actions-bar{gap:12px;margin-bottom:24px;display:flex}.search-bar{border:1px solid var(--glass-border,#0000001a);background:#fff;border-radius:12px;flex:1;align-items:center;padding:12px 16px;display:flex}.search-icon{color:#666;margin-right:10px}.search-bar input{color:#333;background:0 0;border:none;outline:none;flex:1;font-size:1rem}.search-bar input::placeholder{color:#999}.student-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:16px;padding-right:8px;display:grid;overflow-y:auto}.student-card{border:1px solid var(--glass-border,#0000001a);cursor:pointer;background:#00000005;border-radius:12px;flex-direction:column;align-items:center;gap:12px;padding:16px;transition:all .2s;display:flex;position:relative}.student-card:hover{background:#0000000d;transform:translateY(-2px)}.student-name{text-align:center;font-size:.95rem;font-weight:500}.check-badge{border-radius:50%;justify-content:center;align-items:center;width:24px;height:24px;display:flex;position:absolute;top:8px;right:8px}.empty-state{color:#666;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:16px;display:flex}.empty-icon{opacity:.5}.modal-footer{border-top:1px solid var(--glass-border,#0000001a);background:#00000005;justify-content:space-between;align-items:center;padding:16px 24px;display:flex}.selection-info{color:#666;align-items:center;gap:8px;font-size:.9rem;display:flex}.badge{color:#fff;background:#29619f;border-radius:12px;padding:2px 8px;font-size:.85rem;font-weight:700}.footer-actions{gap:12px;display:flex}.btn-secondary{color:#374151;cursor:pointer;background:#f3f4f6;border:1px solid #d1d5db;border-radius:8px;padding:8px 16px}.btn-primary{color:#fff;cursor:pointer;background:#29619f;border:none;border-radius:8px;padding:8px 16px}@media (width<=768px){.modal-body{flex-direction:column}.class-sidebar{border-right:none;border-bottom:1px solid var(--glass-border,#0000001a);width:100%;max-height:150px}.class-list{gap:8px;padding-bottom:10px;display:flex}.class-btn{white-space:nowrap;width:auto;margin-bottom:0}}.player-bar{background:var(--glass-bg,#ffffffe6);border-radius:20px;align-items:center;margin-bottom:20px;padding:0;display:flex;position:relative;overflow:hidden;box-shadow:0 10px 30px #0000000d}.players-container{scrollbar-width:none;-ms-overflow-style:none;flex:1;gap:16px;padding:20px;display:flex;overflow-x:auto}.players-container::-webkit-scrollbar{display:none}.player-item{background:#00000005;border:1px solid #0000000d;border-radius:100px;align-items:center;gap:12px;min-width:160px;padding:8px 16px 8px 8px;transition:background .3s,border-color .3s,box-shadow .3s,color .3s;display:flex;position:relative}.player-item.active{background:var(--player-accent);border-color:var(--player-accent);color:var(--player-text-color);box-shadow:0 8px 20px #00000026}.player-avatar{border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;font-size:1.1rem;font-weight:700;display:flex;box-shadow:0 4px 10px #0000000d}.player-item.active .player-avatar{box-shadow:0 0 10px #0000001a}.player-info{flex-direction:column;display:flex}.player-name{white-space:nowrap;font-size:.95rem;font-weight:600}.player-item.active .player-name{color:var(--player-text-color)}.player-points{color:var(--text-gray,#666);font-size:.8rem;font-weight:500}.player-item.active .player-points{color:var(--player-text-color);opacity:.8}.active-indicator{color:var(--player-accent);text-transform:uppercase;background:#fff;border-radius:10px;padding:2px 8px;font-size:.7rem;font-weight:800;position:absolute;top:-8px;right:-8px;box-shadow:0 4px 10px #00000026}:root{--primary-red:#f18b8b;--bg-color:#f8caca;--text-gray:#333}body{background-color:var(--bg-color);-webkit-user-select:none;user-select:none;perspective:1000px;margin:0;font-family:Fredoka,sans-serif;overflow:hidden}.hidden{display:none!important}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.flex-grow{flex-grow:1}.flex-shrink-0{flex-shrink:0}.bg-white{background-color:#fff}.text-gray-800{color:#1f2937}.text-gray-700{color:#374151}.text-2xl{font-size:1.5rem;line-height:2rem}.text-sm{font-size:.875rem;line-height:1.25rem}.font-semibold{font-weight:600}.font-bold{font-weight:700}.rounded-xl{border-radius:.75rem}.shadow-lg{box-shadow:0 10px 15px -3px #0000001a,0 4px 6px -4px #0000001a}.overflow-hidden{overflow:hidden}.border-t-4{border-top-width:4px}.border-gray-300{border-color:#d1d5db}.mx-3{margin-left:.75rem;margin-right:.75rem}.p-2{padding:.5rem}.h-36{height:9rem}.w-48{width:12rem}.space-y-2>:not([hidden])~:not([hidden]){margin-top:.5rem}.object-contain{object-fit:contain}.max-w-full{max-width:100%}.max-h-full{max-height:100%}.corner-button{z-index:20001;cursor:pointer;background:0 0;border:none;padding:10px;position:fixed}.top-left{top:20px;left:20px}.top-right{top:20px;right:20px}.arrow-svg{stroke:#646464;stroke-width:3px;stroke-linecap:round;stroke-linejoin:round;width:40px;height:40px;transition:transform .2s ease-out}.corner-button:active .arrow-svg{transform:scale(.9)}.corner-button:hover .arrow-svg{animation:.8s ease-out bounce-left}@keyframes bounce-left{0%,to{transform:translate(0)}25%{transform:translate(-8px)}50%{transform:translate(4px)}75%{transform:translate(-2px)}90%{transform:translate(1px)}}.fullscreen-container{justify-content:center;align-items:center;width:40px;height:40px;display:flex}.fullscreen-container:active svg{transform:scale(.9)}.fullscreen-container[disabled]{cursor:not-allowed;opacity:.5}.fullscreen-container svg{stroke:#646464;stroke-width:2.5px;stroke-linecap:round;stroke-linejoin:round;width:40px;height:40px;transition:transform .2s ease-out;position:absolute}.exit-fullscreen-svg{display:none}.fullscreen-container:hover:not([disabled]) .enter-fullscreen-svg{animation:.6s ease-out expand-icon}.fullscreen-container:hover:not([disabled]) .exit-fullscreen-svg{animation:.6s ease-out shrink-icon}@keyframes expand-icon{0%,to{transform:scale(1)rotate(0)}30%{transform:scale(1.3)rotate(10deg)}60%{transform:scale(.9)rotate(-5deg)}}@keyframes shrink-icon{0%,to{transform:scale(1)rotate(0)}30%{transform:scale(.7)rotate(-10deg)}60%{transform:scale(1.1)rotate(5deg)}}#main-menu-view{z-index:20000;justify-content:center;align-items:center;width:100vw;height:100vh;transition:opacity .5s ease-out;display:flex;position:absolute;top:0;left:0}.main-wrapper{flex-direction:column;align-items:center;display:flex;position:relative}.title-flipper{width:650px;height:120px;margin-bottom:30px;animation:6s ease-in-out infinite alternate-reverse float-rotate;position:relative}@keyframes float-rotate{0%{transform:translateY(0)rotate(-1.5deg)}50%{transform:translateY(-12px)rotate(0)}to{transform:translateY(0)rotate(1.5deg)}}.title-box{background-color:var(--primary-red);color:#fff;box-sizing:border-box;text-align:center;border-radius:25px;justify-content:center;align-items:center;width:100%;height:100%;padding:25px;font-size:clamp(3rem,10vw,4rem);font-weight:600;display:flex;position:absolute;box-shadow:0 8px 20px #0000001a}.menu-container{box-sizing:border-box;background-color:#fff;border-radius:20px;flex-direction:column;align-items:center;gap:20px;width:420px;padding:35px;display:flex;box-shadow:0 10px 25px #0000001a}.button-group{flex-direction:column;gap:20px;width:100%;display:flex}.menu-btn{cursor:pointer;text-transform:uppercase;letter-spacing:1px;border:none;border-radius:12px;width:100%;padding:15px;font-size:18px;font-weight:600;transition:all .2s;box-shadow:0 5px}.menu-btn:hover{transform:translateY(-2px)}.menu-btn:active{transform:translateY(4px);box-shadow:0 1px!important}.btn-blue{color:#29619f;background-color:#cfe0f3;box-shadow:0 5px #97bce5}.btn-blue:hover{box-shadow:0 7px #97bce5}.btn-purple{color:#7323a5;background-color:#e6cdf5;box-shadow:0 5px #c893e9}.btn-purple:hover{box-shadow:0 7px #c893e9}.btn-orange{color:#b67012;background-color:#f3c689;box-shadow:0 5px #de9b47}.btn-orange:hover{box-shadow:0 7px #de9b47}#score-counter{color:#c8a700;z-index:10001;text-align:center;background-color:#fff5c3;border:3px solid #ffe97d;border-radius:9999px;min-width:60px;padding:.5rem 1.5rem;font-size:1.5rem;font-weight:600;position:absolute;top:20px;left:50%;transform:translate(-50%);box-shadow:0 4px 10px #0000001a}#game-board{width:100%;height:100vh;padding-top:20px;position:relative}.card{cursor:grab;touch-action:none;transform-origin:bottom;width:8rem;height:11.6rem;transition:transform .3s,box-shadow .2s ease-in-out,top .3s,left .3s,height .3s;position:absolute}.card.entering{transition:top .6s cubic-bezier(.34,1.56,.64,1),left .6s cubic-bezier(.34,1.56,.64,1)}.card.exiting{transition:top 1.5s ease-out,left 1.5s ease-out}.card.cleared{opacity:0;transition:transform .5s ease-in,opacity .5s ease-in}.card.new-card{transition:none!important;top:2000px!important;left:-2000px!important}.card.locked{cursor:default}.card.animating{transition:none!important}.card.dragging{cursor:grabbing;transform-origin:50%;transition:none;box-shadow:0 20px 25px -5px #0000001a,0 8px 10px -6px #0000001a;z-index:9999!important}.card:after{content:"";opacity:0;pointer-events:none;background-color:#ffe97d;border-radius:.75rem;transition:opacity .5s;position:absolute;inset:0}.card.completed:after{opacity:.25}@keyframes hop{0%,to{transform:translateY(0) rotate(var(--rotation-deg))}50%{transform:translateY(-20px) rotate(var(--rotation-deg))}}.hop-animation{animation:.5s ease-in-out hop}.style-text-only .card,.style-image-only .card{height:6.4rem}.style-text-only .image-container,.style-text-only .card-divider{display:none}.style-text-only .text-box{height:100%;font-size:1.4rem}.style-image-only .text-box,.style-image-only .card-divider{display:none}.style-image-only .image-container{padding:.75rem;height:100%!important}.text-box{justify-content:center;align-items:center;height:68px;padding:12px 0;display:flex;overflow:hidden}.text-box p{text-align:center;margin:0;padding:0 6px;font-size:1.2rem!important;line-height:1.6rem!important}.card .image-container{height:7.2rem!important}.toggle-switch{width:50px;height:28px;display:inline-block;position:relative}.toggle-switch input{opacity:0;width:0;height:0}.slider{cursor:pointer;background-color:#bebebe;border-radius:28px;transition:all .4s;position:absolute;inset:0}.slider:before{content:"";background-color:#fff;border-radius:50%;width:20px;height:20px;transition:all .4s;position:absolute;bottom:4px;left:4px}input:checked+.slider{background-color:#8cb973}input:checked+.slider:before{transform:translate(22px)}.three-state-toggle{background-color:#bebebe;border-radius:10px;padding:4px;display:flex;position:relative}.three-state-toggle input{display:none}.three-state-toggle label{text-align:center;color:#333;cursor:pointer;z-index:2;flex:1;padding:4px 2px;font-size:.75rem;transition:color .3s}.three-state-toggle .glider{z-index:1;background-color:#fff;border-radius:7px;width:calc(33.3333% - 2.66667px);transition:transform .3s cubic-bezier(.65,0,.35,1);position:absolute;top:4px;bottom:4px;box-shadow:0 1px 3px #0000001a}#style-both:checked~.glider{transform:translate(0)}#style-text:checked~.glider{transform:translate(100%)}#style-image:checked~.glider{transform:translate(200%)}.slider-container{align-items:center;width:100%;height:28px;display:flex;position:relative}.slider-visual-track{background-color:#bebebe;border-radius:9999px;width:100%;height:12px;position:absolute;overflow:hidden}.slider-progress{background-color:#8cb973;border-radius:9999px;height:12px;position:absolute}.slider-thumb{z-index:3;pointer-events:none;background-color:#8cb973;border:4px solid #fff;border-radius:50%;width:28px;height:28px;position:absolute;box-shadow:0 2px 4px #0003}.slider-input{appearance:none;z-index:2;cursor:pointer;background:0 0;outline:none;width:100%;height:100%;margin:0;position:absolute}.slider-input::-webkit-slider-thumb{appearance:none;background:0 0;width:28px;height:28px}.slider-input::-moz-range-thumb{background:0 0;border:none;width:28px;height:28px}#error-banner{background-color:var(--bg-color);color:#b21616;z-index:10000;text-align:center;border:3px solid #e84444;border-bottom:none;border-radius:1rem 1rem 0 0;max-width:90%;padding:1rem 2rem;font-weight:500;transition:bottom .4s cubic-bezier(.34,1.56,.64,1);position:fixed;bottom:-100px;left:50%;transform:translate(-50%);box-shadow:0 -5px 15px #00000026}#error-banner.visible{bottom:0}#side-menu{z-index:10000;border-top-left-radius:16px;border-bottom-left-radius:16px;height:auto;max-height:90vh;transition:transform .4s cubic-bezier(.77,0,.175,1);display:flex;position:fixed;top:50%;right:0;overflow:hidden;transform:translate(calc(100% - 48px),-50%)}#side-menu:not(.open):hover{transform:translate(calc(100% - 60px),-50%)}#side-menu.open{transform:translateY(-50%);box-shadow:-5px 0 15px #00000026}#menu-handle{background-color:var(--primary-red);cursor:pointer;flex-direction:column;flex-shrink:0;justify-content:space-between;align-items:center;width:48px;padding:16px 0;display:flex}.menu-icon{color:#444;width:28px;height:28px}#arrow-icon{transition:transform .4s cubic-bezier(.77,0,.175,1)}#side-menu.open #arrow-icon{transform:rotate(180deg)}#menu-content{background-color:#fff;width:280px;padding:24px;overflow-y:auto}#menu-content h3{color:#333;border-bottom:2px solid #e0e0e0;margin-top:0;margin-bottom:1rem;padding-bottom:12px;font-size:1.25rem}.setting{margin-bottom:1.5rem;transition:opacity .3s}.setting-disabled{opacity:.5;pointer-events:none}.setting-disabled .slider{cursor:not-allowed}.pile-counter{z-index:5;pointer-events:none;width:14rem;transition:transform .4s cubic-bezier(.34,1.56,.64,1),opacity .4s ease-in-out;position:absolute;top:0;left:0}.pile-counter .floater{transition:transform 1s linear,opacity 1s linear,filter .8s ease-in}.animate-float{animation:6s ease-in-out infinite float}.pile-counter .score-box{background-color:#f8caca;border-radius:.5rem;width:100%;height:4rem;transition:transform .4s ease-in-out;position:relative;overflow:hidden;box-shadow:0 10px 15px -3px #0000001a,0 4px 6px -2px #0000000d}.pile-counter .score-box.incorrect{background-color:#e1e1e1}.pile-counter .progress-bar{background-color:#f18b8b;border-radius:.5rem;height:100%;transition:all .5s ease-in-out;position:absolute;top:0;left:0}.pile-counter .score-box.incorrect .progress-bar{background-color:#969696}.pile-counter .score-text{color:#646464;letter-spacing:.05em;z-index:20;justify-content:center;align-items:center;font-size:1.875rem;font-weight:700;line-height:2.25rem;display:flex;position:absolute;inset:0}@keyframes float{0%{transform:translateY(0)rotate(-1deg)}50%{transform:translateY(-8px)rotate(1deg)}to{transform:translateY(0)rotate(-1deg)}}@keyframes expand-and-fade{0%{opacity:.7;transform:translate(-50%,-50%)scale(0)}80%{opacity:.5;transform:translate(-50%,-50%)scale(4.5)}to{opacity:0;transform:translate(-50%,-50%)scale(4.5)}}.ripple-circle{opacity:0;border-radius:50%;animation:2s ease-out forwards expand-and-fade;position:absolute;top:50%;left:50%}@media (width<=768px){body{overflow:hidden}.card{width:6rem;height:8.7rem}.text-box{height:51px;padding:9px 0}.text-box p{font-size:.9rem!important;line-height:1.2rem!important}.card .image-container{height:5.4rem!important}.style-text-only .card,.style-image-only .card{height:4.8rem}.style-text-only .text-box{font-size:1.05rem}.pile-counter{width:10.5rem;height:3rem}.pile-counter .score-text{font-size:1.25rem}}