*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:linear-gradient(#0003,#0003),url(/assets/background-D_h1eMqX.jpg);background-size:cover;background-position:center;background-repeat:no-repeat;min-height:100vh;min-height:100dvh;display:flex;align-items:center;justify-content:center}#app{max-width:1200px;margin:0 auto;padding:20px}body.participant-home #app{width:min(1040px,100%);padding:16px 20px 28px}body.participant-home header{margin-bottom:22px}body.participant-home .header-content{padding-top:10px;gap:2px}body.participant-home .biokin-logo{width:min(260px,42vw)}body.participant-home .site-title{font-size:clamp(2.15rem,4.4vw,3.7rem);margin-bottom:6px}body.participant-home .site-credit{font-size:clamp(1rem,1.8vw,1.45rem)}body.participant-home .age-selection{padding-top:6px;margin-bottom:20px}header{text-align:center;margin-bottom:40px;animation:bounceIn 1s ease-out}header h1{font-size:3rem;color:#fff;text-shadow:2px 2px 4px rgba(0,0,0,.3);margin-bottom:10px}header p{font-size:1.5rem;color:#fff;opacity:.9}.age-selection{text-align:center;margin-bottom:40px}.age-selection h2{font-size:2.5rem;color:#fff;margin-bottom:30px;text-shadow:1px 1px 2px rgba(0,0,0,.3)}.participant-welcome-card{width:min(560px,90vw);margin:40px auto 20px;padding:60px 36px 28px;border:2px solid rgba(255,255,255,.92);border-radius:34px;background:linear-gradient(180deg,#fffae8fa,#fff6dcf0);box-shadow:0 24px 50px #59431838,inset 0 2px #ffffffbf;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);position:relative}.participant-avatar,.participant-greeting,.participant-age-row{display:block}.participant-avatar{width:80px;height:80px;margin:0;display:grid;place-items:center;border-radius:50%;background:linear-gradient(180deg,#fffdf5,#fff1cc);color:#57ad5f;text-shadow:none;box-shadow:0 12px 26px #59431838,inset 0 2px #ffffffe6;position:absolute;left:50%;top:-40px;transform:translate(-50%)}.participant-avatar svg{width:48px;height:48px;fill:currentColor}.participant-greeting{color:#57a65b;font-size:clamp(1.85rem,3.4vw,2.65rem);font-weight:900;line-height:1.05;overflow-wrap:anywhere;text-shadow:none}.participant-age-row{display:flex;align-items:center;justify-content:center;gap:26px;margin-top:12px;color:#7c5f49;font-size:clamp(1.1rem,1.8vw,1.45rem);font-weight:900;text-shadow:none}.participant-age-row span:first-child,.participant-age-row span:last-child{color:#ffbd33;font-size:1.1em;text-shadow:0 3px 8px rgba(255,171,36,.24)}.participant-start-btn{min-width:min(300px,70vw);border-radius:999px;padding:13px 24px;background:linear-gradient(180deg,#ffc84c,#ffa51f);box-shadow:0 14px #df8112,0 22px 34px #6b481247;display:inline-flex;align-items:center;justify-content:center;gap:10px;font-size:1rem}.participant-start-btn:hover{background:linear-gradient(180deg,#ffd26a,#ffad2b);box-shadow:0 11px #df8112,0 22px 34px #6b48124d}.participant-start-btn:active{transform:translateY(6px);box-shadow:0 5px #df8112,0 14px 22px #6b48123d}.participant-play-icon{width:36px;height:36px;flex:0 0 auto;display:grid;place-items:center;border-radius:50%;background:#5fc263;color:#fff;font-size:.92rem;line-height:1;padding-left:3px;text-shadow:none;box-shadow:0 8px 18px #1955233d}@media (max-width: 640px){body.participant-home #app{padding:12px 14px 24px}body.participant-home .biokin-logo{width:min(220px,58vw)}body.participant-home .site-title{font-size:clamp(2rem,11vw,2.65rem)}body.participant-home .site-credit{font-size:1rem}.participant-welcome-card{width:min(390px,92vw);margin-top:34px;padding:52px 18px 24px;border-radius:28px}.participant-avatar{width:68px;height:68px;top:-34px}.participant-avatar svg{width:40px;height:40px}.participant-age-row{gap:16px}.participant-start-btn{min-width:min(260px,78vw);padding:12px 16px;gap:8px;font-size:.9rem}.participant-play-icon{width:32px;height:32px;font-size:.8rem;padding-left:2px}}.age-buttons{display:flex;justify-content:center;gap:40px;flex-wrap:wrap}.age-btn{background:linear-gradient(45deg,#4caf50,#81c784);border:none;border-radius:20px;padding:30px 40px;font-size:1.5rem;font-weight:700;color:#fff;cursor:pointer;transition:all .3s ease;box-shadow:0 8px 15px #0003;min-width:200px;pointer-events:auto;user-select:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;position:relative;z-index:10}.age-btn:hover{transform:translateY(-5px);box-shadow:0 12px 25px #0000004d;background:linear-gradient(45deg,#45a049,#7cb778)}.age-btn:active{transform:translateY(-2px);background:linear-gradient(45deg,#3d8b40,#6ea46f)}.age-btn:focus{outline:3px solid rgba(255,255,255,.5);outline-offset:2px}.age-emoji{font-size:2rem;display:block;margin-bottom:10px}.game-selection{text-align:center;animation:fadeIn .8s ease-out}.game-selection h2{font-size:2.5rem;color:#fff;margin-bottom:30px;text-shadow:1px 1px 2px rgba(0,0,0,.3)}.game-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:25px;max-width:1000px;margin:0 auto}.game-card{background:#fff;border-radius:20px;padding:30px;cursor:pointer;transition:all .3s ease;box-shadow:0 8px 20px #0000001a;border:3px solid transparent;display:flex;flex-direction:column;height:320px}.game-card:hover{transform:translateY(-10px);box-shadow:0 15px 30px #0003;border-color:#ff6b6b}.game-icon{font-size:4rem;margin-bottom:15px;text-align:center}.game-card h3{font-size:1.8rem;margin-bottom:10px;color:#333;height:60px;display:flex;align-items:center;justify-content:center;text-align:center;line-height:1.2}.game-card p{font-size:1.2rem;color:#666;margin-bottom:15px;height:60px;display:flex;align-items:center;justify-content:center;text-align:center;line-height:1.3}.tags-container{margin-top:auto;display:flex;flex-wrap:wrap;gap:8px;justify-content:center}.category-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:25px;max-width:1200px;margin:0 auto}.category-card{background:#fff;border-radius:20px;padding:30px;cursor:pointer;transition:all .3s ease;box-shadow:0 8px 20px #0000001a;border:3px solid transparent;text-align:center}.category-card:hover{transform:translateY(-10px);box-shadow:0 15px 30px #0003;border-color:#ff6b6b}.category-icon{font-size:4rem;margin-bottom:15px}.category-card h3{font-size:1.8rem;margin-bottom:10px;color:#333}.category-card p{font-size:1.2rem;color:#666}.category-tag{display:inline-block;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:6px 12px;border-radius:15px;font-size:.9rem;font-weight:600;margin-top:10px}.game-tag{display:inline-block;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:4px 10px;border-radius:12px;font-size:.8rem;font-weight:600;text-align:center;white-space:nowrap;transition:all .2s ease}.game-tag:hover{transform:scale(1.05);box-shadow:0 4px 12px #0003}.game-tag[data-tag=Accuracy]{background:linear-gradient(135deg,#667eea,#764ba2)}.game-tag[data-tag=Rhythmicity]{background:linear-gradient(135deg,#f093fb,#f5576c)}.game-tag[data-tag="Finger Tapping"]{background:linear-gradient(135deg,#4facfe,#00f2fe)}.game-tag[data-tag=Stability]{background:linear-gradient(135deg,#43e97b,#38f9d7)}.game-tag[data-tag=Timing]{background:linear-gradient(135deg,#fa709a,#fee140)}.game-tag[data-tag=Speech]{background:linear-gradient(135deg,#a8edea,#fed6e3)}.game-tag[data-tag=Accuracy]:hover{box-shadow:0 4px 12px #667eea66}.game-tag[data-tag=Rhythmicity]:hover{box-shadow:0 4px 12px #f093fb66}.game-tag[data-tag="Finger Tapping"]:hover{box-shadow:0 4px 12px #4facfe66}.game-tag[data-tag=Stability]:hover{box-shadow:0 4px 12px #43e97b66}.game-tag[data-tag=Timing]:hover{box-shadow:0 4px 12px #fa709a66}.game-tag[data-tag=Speech]:hover{box-shadow:0 4px 12px #a8edea66}.games-list{animation:slideIn .8s ease-out}.games-header{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;position:relative;margin-bottom:30px;padding-bottom:16px}.admin-main-menu-btn{grid-column:1;justify-self:start;margin:0;padding:12px 18px;font-size:1rem}.games-header:after{content:"";position:absolute;left:50%;bottom:0;transform:translate(-50%);width:92px;height:6px;border-radius:999px;background:linear-gradient(90deg,#4caf50,#f18354);box-shadow:0 4px 12px #00000038}.games-header h2{grid-column:2;font-size:2.8rem;color:#fff;margin:0;padding:0;font-weight:900;letter-spacing:0;text-align:center;text-shadow:0 3px 0 rgba(0,0,0,.22),0 8px 18px rgba(0,0,0,.35)}.game-area{animation:slideIn .8s ease-out;margin-top:-50px;margin-bottom:-25px}.game-header{display:flex;align-items:center;margin-bottom:20px}.back-btn{background:#f18354;color:#fff;border:none;border-radius:10px;padding:15px 25px;font-size:1.2rem;cursor:pointer;transition:all .3s ease;margin-right:20px}.back-btn:hover{background:#ff5252;transform:translateY(-2px)}#gameTitle{font-size:2.5rem;color:#fff;text-shadow:1px 1px 2px rgba(0,0,0,.3)}.game-container{display:flex;justify-content:center;background:#fff;border-radius:20px;padding:20px;box-shadow:0 10px 30px #0003;width:100%;max-width:100%;min-height:70vh;overflow:hidden}#gameCanvas{border:3px solid #ddd;border-radius:15px;background:#fff;display:block;max-width:95vw;max-height:95vh;touch-action:none}@keyframes bounceIn{0%{transform:translateY(-100px);opacity:0}60%{transform:translateY(10px);opacity:1}to{transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideIn{0%{opacity:0;transform:translate(-100px)}to{opacity:1;transform:translate(0)}}@media (max-width: 768px){header h1{font-size:2rem}header p{font-size:1.2rem}.age-buttons{flex-direction:column;align-items:center}.age-btn{min-width:250px}.game-grid{grid-template-columns:1fr}#gameCanvas{width:100%;max-width:400px}}@media (min-width: 1200px){#app{max-width:1400px;padding:40px}header h1{font-size:4rem}.age-selection h2,.game-selection h2{font-size:3rem}.game-container{padding:40px;max-width:1300px;margin:0 auto}#gameCanvas{max-height:75vh;max-width:1100px}}@media (min-width: 1024px) and (max-width: 1199px){#app{max-width:100%;padding:30px}header h1{font-size:3.5rem}.game-container{padding:30px;max-width:1100px;margin:0 auto}#gameCanvas{max-height:75vh}}@media (min-width: 768px) and (max-width: 1023px){#app{padding:25px}header h1{font-size:3rem}.age-selection h2,.game-selection h2{font-size:2.5rem}.game-container{padding:25px;max-width:900px;margin:0 auto}#gameCanvas{max-height:70vh}.game-card{padding:35px;min-height:180px}.game-icon{font-size:5rem}}@media (max-width: 767px) and (orientation: landscape){#app{padding:15px}header{margin-bottom:20px}header h1{font-size:2.5rem}.game-container{padding:15px}#gameCanvas{max-height:70vh}}.loading-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:#87ceebe6;display:flex;flex-direction:column;justify-content:center;align-items:center;z-index:1000;border-radius:20px}.loading-spinner{width:50px;height:50px;border:5px solid #fff;border-top:5px solid #FFD700;border-radius:50%;animation:spin 1s linear infinite;margin-bottom:20px}.loading-text{color:#333;font-size:18px;font-weight:700;text-align:center}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.game-container{position:relative}.game-card[data-primary-category=Accuracy]{border-color:#667eea}.game-card[data-primary-category=Accuracy]:hover{border-color:#667eea;box-shadow:0 15px 30px #667eea4d}.game-card[data-primary-category=Rhythmicity]{border-color:#f093fb}.game-card[data-primary-category=Rhythmicity]:hover{border-color:#f093fb;box-shadow:0 15px 30px #f093fb4d}.game-card[data-primary-category=Stability]{border-color:#43e97b}.game-card[data-primary-category=Stability]:hover{border-color:#43e97b;box-shadow:0 15px 30px #43e97b4d}.game-card[data-primary-category=Timing]{border-color:#fa709a}.game-card[data-primary-category=Timing]:hover{border-color:#fa709a;box-shadow:0 15px 30px #fa709a4d}select{width:100%;padding:10px;border:2px solid #ccc;border-radius:5px;font-size:1rem;font-family:inherit;background-color:#fff;box-shadow:0 2px 4px #0000001a;transition:border-color .3s ease,box-shadow .3s ease}select:focus{border-color:#007bff;box-shadow:0 0 0 3px #007bff40;outline:none}select:hover{border-color:#0056b3}select option{padding:10px}.modal{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:#00000080;z-index:1000;align-items:center;justify-content:center}.modal:not([hidden]){display:flex}.modal-content{background:#fff;border-radius:8px;padding:30px;max-width:500px;width:90%;box-shadow:0 4px 20px #0000004d;max-height:80vh;overflow-y:auto}.modal-content h2{font-size:1.5rem;margin-bottom:20px;color:#333}.confirmation-summary{background:#f9f9f9;border:1px solid #ddd;border-radius:5px;padding:15px;margin-bottom:20px;line-height:1.8}.confirmation-summary p{margin:10px 0;color:#555}.confirmation-summary strong{color:#333}.modal-actions{display:flex;gap:10px;justify-content:flex-end}.modal-actions button{padding:10px 20px;border:none;border-radius:5px;font-size:1rem;cursor:pointer;transition:all .3s ease}.primary-btn{background:linear-gradient(45deg,#4caf50,#81c784);color:#fff;flex:1}.primary-btn:hover{background:linear-gradient(45deg,#45a049,#7cb778);box-shadow:0 4px 12px #00000026}.secondary-btn{background:#e0e0e0;color:#333;flex:1}.secondary-btn:hover{background:#d0d0d0;box-shadow:0 4px 12px #00000026}