:root{--primary: #FF6B35;--primary-dark: #e55a25;--secondary: #4ECDC4;--accent: #FFE66D;--success: #6BCB77;--danger: #FF6B6B;--purple: #845EC2;--bg: #FFF9F0;--card: #FFFFFF;--text: #2D3436;--text-light: #636E72;--border: #E8E0D5;--shadow: 0 4px 20px rgba(0,0,0,.1);--shadow-lg: 0 8px 32px rgba(0,0,0,.15);--radius: 16px;--radius-sm: 10px;--font-head: "Fredoka One", cursive;--font-body: "Nunito", sans-serif}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px}body{font-family:var(--font-body);background:var(--bg);color:var(--text);min-height:100dvh;-webkit-font-smoothing:antialiased}h1,h2,h3{font-family:var(--font-head)}.page{max-width:600px;margin:0 auto;padding:0 16px 100px;min-height:100dvh}.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin-bottom:12px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 24px;border-radius:50px;border:none;font-family:var(--font-body);font-size:1rem;font-weight:800;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,filter .15s ease;-webkit-user-select:none;user-select:none;text-decoration:none}.btn:active{transform:scale(.95)}.btn:hover{filter:brightness(1.05);transform:translateY(-2px);box-shadow:0 6px 20px #00000026}.btn-primary{background:var(--primary);color:#fff}.btn-secondary{background:var(--secondary);color:#fff}.btn-accent{background:var(--accent);color:var(--text)}.btn-success{background:var(--success);color:#fff}.btn-danger{background:var(--danger);color:#fff}.btn-purple{background:var(--purple);color:#fff}.btn-outline{background:transparent;border:2px solid var(--primary);color:var(--primary)}.btn-ghost{background:#0000000d;color:var(--text)}.btn-lg{padding:18px 36px;font-size:1.2rem}.btn-sm{padding:8px 16px;font-size:.85rem}.btn-full{width:100%}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.input{width:100%;padding:14px 18px;border:2px solid var(--border);border-radius:var(--radius-sm);font-family:var(--font-body);font-size:1rem;font-weight:600;color:var(--text);background:var(--card);transition:border-color .2s;outline:none}.input:focus{border-color:var(--primary)}.input.error{border-color:var(--danger)}.form-group{margin-bottom:16px}.label{display:block;font-weight:700;margin-bottom:6px;font-size:.9rem;color:var(--text-light)}.xp-bar-track{background:#e0d7f0;border-radius:50px;height:14px;overflow:hidden}.xp-bar-fill{height:100%;background:linear-gradient(90deg,var(--purple),#a78bfa);border-radius:50px;transition:width .8s cubic-bezier(.34,1.56,.64,1)}.navbar{position:fixed;bottom:0;left:0;right:0;background:var(--card);border-top:2px solid var(--border);display:flex;justify-content:space-around;align-items:center;padding:8px 0 max(8px,env(safe-area-inset-bottom));z-index:100;box-shadow:0 -4px 16px #00000014}.nav-item{display:flex;flex-direction:column;align-items:center;gap:2px;font-size:.7rem;font-weight:700;color:var(--text-light);text-decoration:none;padding:4px 16px;border-radius:var(--radius-sm);transition:color .2s,background .2s;cursor:pointer;border:none;background:none;font-family:var(--font-body)}.nav-item .nav-icon{font-size:1.6rem;transition:transform .2s}.nav-item.active{color:var(--primary)}.nav-item.active .nav-icon{transform:scale(1.2)}.nav-item:hover{color:var(--primary)}.auth-page{min-height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px 20px;background:linear-gradient(135deg,#ff6b35,#ff8c42 40%,#ffe66d)}.auth-card{background:#fff;border-radius:24px;padding:32px 28px;width:100%;max-width:420px;box-shadow:0 20px 60px #ff6b354d}.auth-mascot{font-size:5rem;text-align:center;margin-bottom:8px;animation:float 3s ease-in-out infinite}.auth-title{font-family:var(--font-head);font-size:2rem;text-align:center;color:var(--primary);margin-bottom:4px}.auth-sub{text-align:center;color:var(--text-light);margin-bottom:24px;font-weight:600}.dash-header{background:linear-gradient(135deg,var(--primary),#FF8C42);color:#fff;border-radius:var(--radius);padding:24px;margin-bottom:12px;box-shadow:0 6px 24px #ff6b3559}.dash-greeting{font-size:.9rem;opacity:.9;font-weight:600}.dash-username{font-family:var(--font-head);font-size:1.8rem}.dash-stats{display:flex;gap:16px;margin-top:16px}.dash-stat{background:#fff3;border-radius:12px;padding:10px 16px;flex:1;text-align:center}.dash-stat-val{font-family:var(--font-head);font-size:1.4rem}.dash-stat-lbl{font-size:.72rem;opacity:.9}.section-title{font-family:var(--font-head);font-size:1.3rem;color:var(--text);margin:4px 0 12px}.game-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.game-card{background:var(--card);border-radius:var(--radius);padding:20px 16px;text-align:center;box-shadow:var(--shadow);cursor:pointer;transition:transform .2s,box-shadow .2s;text-decoration:none;color:var(--text);border:3px solid transparent}.game-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.game-card:active{transform:scale(.97)}.game-card.active{border-color:var(--primary)}.game-emoji{font-size:2.8rem;margin-bottom:8px}.game-name{font-family:var(--font-head);font-size:1rem;color:var(--text)}.game-desc{font-size:.75rem;color:var(--text-light);margin-top:4px}.game-xp{display:inline-block;margin-top:8px;background:var(--accent);color:#a0700a;font-size:.75rem;font-weight:800;padding:3px 10px;border-radius:50px}.game-header{display:flex;align-items:center;gap:12px;padding:16px 0}.game-progress-bar{flex:1;background:var(--border);border-radius:50px;height:10px;overflow:hidden}.game-progress-fill{height:100%;background:var(--primary);border-radius:50px;transition:width .4s ease}.game-score{font-family:var(--font-head);font-size:1.1rem;color:var(--primary);white-space:nowrap}.quiz-word{text-align:center;padding:32px 20px;background:linear-gradient(135deg,#f0e8ff,#e8f0ff);border-radius:var(--radius);margin-bottom:20px}.quiz-emoji{font-size:3.5rem}.quiz-word-text{font-family:var(--font-head);font-size:2.2rem;color:var(--purple);margin-top:8px}.options-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.option-btn{padding:16px 12px;background:var(--card);border:3px solid var(--border);border-radius:var(--radius-sm);font-family:var(--font-body);font-size:.95rem;font-weight:700;cursor:pointer;transition:all .2s;text-align:center}.option-btn:hover:not(:disabled){border-color:var(--secondary);background:#e8faf9;transform:translateY(-2px)}.option-btn.correct{border-color:var(--success);background:#e8f9ed;color:#2d8a45;animation:pop .3s ease}.option-btn.wrong{border-color:var(--danger);background:#ffe8e8;color:#c0392b;animation:shake .4s ease}.option-btn:disabled{cursor:default}.memory-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:16px 0}.memory-card{aspect-ratio:1;perspective:600px;cursor:pointer}.memory-card-inner{position:relative;width:100%;height:100%;transform-style:preserve-3d;transition:transform .4s ease;border-radius:var(--radius-sm)}.memory-card.flipped .memory-card-inner,.memory-card.matched .memory-card-inner{transform:rotateY(180deg)}.memory-card-front,.memory-card-back{position:absolute;top:0;right:0;bottom:0;left:0;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;backface-visibility:hidden;-webkit-backface-visibility:hidden;font-size:.8rem;font-weight:700;padding:4px;text-align:center;border:3px solid transparent}.memory-card-front{background:linear-gradient(135deg,var(--primary),#FF8C42);color:#fff;font-size:1.6rem}.memory-card-back{background:#fff;border:3px solid var(--secondary);color:var(--text);transform:rotateY(180deg);font-size:.75rem}.memory-card.matched .memory-card-back{border-color:var(--success);background:#e8f9ed;animation:pop .3s ease}.scramble-letters{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin:20px 0}.letter-tile{width:44px;height:44px;background:linear-gradient(135deg,var(--primary),#FF8C42);color:#fff;border-radius:10px;display:flex;align-items:center;justify-content:center;font-family:var(--font-head);font-size:1.3rem;cursor:pointer;box-shadow:0 3px 8px #ff6b3559;transition:transform .15s;-webkit-user-select:none;user-select:none}.letter-tile:hover{transform:translateY(-3px) scale(1.1)}.letter-tile.used{opacity:.3;cursor:default;transform:none}.letter-tile.answer{background:linear-gradient(135deg,var(--success),#50c878)}.answer-tiles{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;min-height:60px;margin-bottom:16px}.answer-slot{width:44px;height:44px;border:3px dashed var(--border);border-radius:10px;display:flex;align-items:center;justify-content:center;font-family:var(--font-head);font-size:1.3rem;cursor:pointer;transition:border-color .2s}.answer-slot.filled{border-color:var(--secondary);background:#e8faf9}.fill-sentence{font-size:1.2rem;font-weight:700;text-align:center;padding:24px;background:linear-gradient(135deg,#fff8e1,#fffde7);border-radius:var(--radius);margin-bottom:20px;line-height:1.6}.blank{display:inline-block;min-width:80px;height:2px;background:var(--primary);vertical-align:middle;margin:0 6px}.ach-toast{position:fixed;bottom:90px;left:50%;transform:translate(-50%);background:#fff;border-radius:var(--radius);padding:14px 24px;box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:12px;z-index:999;animation:slideUp .4s cubic-bezier(.34,1.56,.64,1),fadeOut .4s 3s forwards;white-space:nowrap}.ach-toast-icon{font-size:2rem}.ach-toast-title{font-size:.75rem;color:var(--text-light);font-weight:700}.ach-toast-name{font-family:var(--font-head);font-size:1.1rem;color:var(--purple)}.ai-fab{position:fixed;bottom:80px;right:16px;width:56px;height:56px;background:linear-gradient(135deg,var(--primary),#FF8C42);border-radius:50%;border:none;font-size:1.8rem;cursor:pointer;box-shadow:0 4px 16px #ff6b3580;z-index:99;transition:transform .2s;animation:pulse-glow 2s ease-in-out infinite}.ai-fab:hover{transform:scale(1.1)}.ai-panel{position:fixed;bottom:148px;right:16px;width:min(340px,calc(100vw - 32px));background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-lg);z-index:98;overflow:hidden;animation:slideUp .3s ease}.ai-panel-header{background:linear-gradient(135deg,var(--primary),#FF8C42);color:#fff;padding:12px 16px;display:flex;align-items:center;gap:10px}.ai-panel-header h3{font-family:var(--font-head);font-size:1.1rem;flex:1}.ai-close{background:none;border:none;color:#fff;font-size:1.2rem;cursor:pointer}.ai-messages{padding:12px;max-height:200px;overflow-y:auto;display:flex;flex-direction:column;gap:8px}.ai-msg{border-radius:12px;padding:10px 14px;max-width:90%;font-size:.9rem;line-height:1.5}.ai-msg.leo{background:#f0e8ff;align-self:flex-start}.ai-msg.user{background:var(--primary);color:#fff;align-self:flex-end}.ai-input-row{display:flex;gap:8px;padding:12px;border-top:2px solid var(--border)}.ai-input{flex:1;padding:10px 14px;border:2px solid var(--border);border-radius:50px;font-family:var(--font-body);font-size:.9rem;outline:none}.ai-input:focus{border-color:var(--primary)}.ai-send{background:var(--primary);color:#fff;border:none;border-radius:50%;width:38px;height:38px;font-size:1.1rem;cursor:pointer;flex-shrink:0}.results-screen{text-align:center;padding:32px 16px}.results-emoji{font-size:5rem;animation:bounce-in .5s ease}.results-title{font-family:var(--font-head);font-size:2rem;margin:12px 0}.results-score{font-size:3rem;font-family:var(--font-head);color:var(--primary)}.results-xp{background:linear-gradient(135deg,var(--purple),#a78bfa);color:#fff;border-radius:50px;padding:8px 24px;font-weight:800;margin:12px auto;display:inline-block;font-size:1.1rem}.profile-header{background:linear-gradient(135deg,var(--purple),#a78bfa);color:#fff;padding:32px 24px;text-align:center;border-radius:var(--radius);margin-bottom:20px}.avatar-emoji{font-size:4rem}.profile-name{font-family:var(--font-head);font-size:1.8rem;margin-top:8px}.ach-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.ach-item{background:var(--card);border-radius:var(--radius-sm);padding:16px 8px;text-align:center;box-shadow:var(--shadow)}.ach-item.earned{border:2px solid var(--accent)}.ach-item.locked{opacity:.4;filter:grayscale(1)}.ach-icon{font-size:2rem}.ach-name{font-size:.72rem;font-weight:700;margin-top:4px;color:var(--text)}.lb-row{display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--card);border-radius:var(--radius-sm);margin-bottom:8px;box-shadow:0 2px 8px #0000000f}.lb-row.me{background:#fff0e8;border:2px solid var(--primary)}.lb-rank{font-family:var(--font-head);font-size:1.2rem;width:32px;text-align:center}.lb-name{flex:1;font-weight:700}.lb-xp{font-weight:800;color:var(--purple)}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes bounce-in{0%{transform:scale(.3);opacity:0}60%{transform:scale(1.2)}to{transform:scale(1);opacity:1}}@keyframes pop{0%{transform:scale(1)}50%{transform:scale(1.15)}to{transform:scale(1)}}@keyframes shake{0%,to{transform:translate(0)}20%{transform:translate(-6px)}40%{transform:translate(6px)}60%{transform:translate(-6px)}80%{transform:translate(6px)}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px) translate(-50%)}to{opacity:1;transform:translateY(0) translate(-50%)}}@keyframes fadeOut{0%{opacity:1}to{opacity:0;pointer-events:none}}@keyframes pulse-glow{0%,to{box-shadow:0 4px 16px #ff6b3580}50%{box-shadow:0 4px 24px #ff6b35cc}}@keyframes confetti-fall{0%{transform:translateY(-10px) rotate(0);opacity:1}to{transform:translateY(100vh) rotate(720deg);opacity:0}}.confetti-container{position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:1000;overflow:hidden}.confetti-piece{position:absolute;width:10px;height:10px;animation:confetti-fall linear forwards}.text-center{text-align:center}.text-primary{color:var(--primary)}.text-purple{color:var(--purple)}.text-success{color:var(--success)}.text-light{color:var(--text-light)}.mt-8{margin-top:8px}.mt-12{margin-top:12px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mb-4{margin-bottom:4px}.mb-8{margin-bottom:8px}.mb-16{margin-bottom:16px}.gap-8{gap:8px}.flex{display:flex}.flex-center{display:flex;align-items:center;justify-content:center}.flex-between{display:flex;align-items:center;justify-content:space-between}.fw-800{font-weight:800}.fs-sm{font-size:.85rem}.alert{padding:12px 16px;border-radius:var(--radius-sm);font-weight:700;margin-bottom:12px;font-size:.9rem}.alert-error{background:#ffe8e8;color:#c0392b;border:2px solid #ffb3b3}.alert-success{background:#e8f9ed;color:#2d8a45;border:2px solid #a3e4b2}.spinner{width:40px;height:40px;border:4px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite;margin:32px auto}@keyframes spin{to{transform:rotate(360deg)}}.loading-page{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:60vh}.loading-page p{color:var(--text-light);font-weight:700;margin-top:12px}.levelup-banner{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:999;animation:fadeIn .3s ease}.levelup-card{background:#fff;border-radius:24px;padding:40px 32px;text-align:center;box-shadow:var(--shadow-lg);animation:bounce-in .4s ease}.levelup-emoji{font-size:4rem}.levelup-title{font-family:var(--font-head);font-size:2rem;color:var(--primary);margin:12px 0}.levelup-lvl{font-family:var(--font-head);font-size:3.5rem;color:var(--purple)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}