@import"https://fonts.googleapis.com/css2?family=Fraunces:wght@700;800;900&family=Nunito:wght@400;600;700;800;900&family=Outfit:wght@400;600;700;800;900&display=swap";:root{--bg: #F0F7FF;--bg-alt: #EEF2FF;--bg-warm: #FFF8F0;--ink: #1E293B;--ink-soft: #475569;--ink-faint: #94A3B8;--primary: #6366F1;--primary-soft: #818CF8;--primary-glow: rgba(99, 102, 241, .18);--primary-light: #EEF2FF;--accent: #F59E0B;--accent-soft: #FEF3C7;--accent-glow: rgba(245, 158, 11, .3);--green: #10B981;--green-soft: #D1FAE5;--red: #EF4444;--red-soft: #FEE2E2;--blue: #3B82F6;--blue-soft: #DBEAFE;--sec-purple: #F5F3FF;--sec-blue: #EFF6FF;--sec-amber: #FFFBEB;--sec-emerald: #ECFDF5;--sec-rose: #FFF1F2;--card: rgba(255, 255, 255, .95);--border: rgba(165, 180, 252, .25);--border-solid: #E2E8F0;--border-focus: var(--primary);--shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);--shadow: 0 4px 24px rgba(99,102,241,.1), 0 1px 4px rgba(0,0,0,.05);--shadow-lg: 0 8px 32px rgba(99,102,241,.14), 0 2px 8px rgba(0,0,0,.06);--shadow-xl: 0 25px 50px -12px rgba(0,0,0,.15);--radius-xs: 8px;--radius-sm: 14px;--radius: 20px;--radius-lg: 28px;--radius-xl: 40px;--sidebar-w: 250px;--topbar-h: 60px;--transition: .18s cubic-bezier(.4, 0, .2, 1);--bounce: .3s cubic-bezier(.34, 1.56, .64, 1)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{height:100%}body{font-family:Outfit,Nunito,system-ui,-apple-system,sans-serif;font-size:16px;line-height:1.5;color:var(--ink);background:linear-gradient(180deg,#f0f7ff,#fff8f0,#f0f7ff);min-height:100vh;-webkit-font-smoothing:antialiased}#root{min-height:100vh}h1,h2,h3,h4{font-family:Outfit,Fraunces,Georgia,serif;font-weight:900;line-height:1.15}a{color:var(--primary);text-decoration:none}button{cursor:pointer;font-family:inherit}input,textarea,select{font-family:inherit}.bg-dots{background-image:radial-gradient(circle,#CBD5E1 .8px,transparent .8px);background-size:24px 24px;background-color:var(--bg)}.cloud-decor{position:fixed;pointer-events:none;z-index:0;opacity:.25}.fun-card{background:linear-gradient(135deg,#fffffff2,#eef2ffb3);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1.5px solid rgba(165,180,252,.25);border-radius:2rem;box-shadow:var(--shadow);transition:border-color var(--transition),box-shadow var(--transition)}.fun-card:hover{border-color:#a5b4fc73;box-shadow:var(--shadow-lg)}.fun-button{background:linear-gradient(135deg,#f59e0b,#f97316);color:#fff;font-weight:900;border:none;border-radius:1.5rem;box-shadow:0 4px 16px var(--accent-glow);transition:all .2s ease;display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;font-family:inherit}.fun-button:hover{transform:translateY(-2px);box-shadow:0 6px 24px #f59e0b6b}.fun-button:active{transform:translateY(0)}.fun-button-secondary{background:linear-gradient(135deg,#818cf8,#6366f1);color:#fff;font-weight:900;border:none;border-radius:1.5rem;box-shadow:0 4px 16px var(--primary-glow);transition:all .2s ease;display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;font-family:inherit}.fun-button-secondary:hover{transform:translateY(-2px);box-shadow:0 6px 24px #6366f161}.fun-button-secondary:active{transform:translateY(0)}@keyframes float{0%,to{transform:translateY(0) rotate(0)}33%{transform:translateY(-12px) rotate(2deg)}66%{transform:translateY(-6px) rotate(-1deg)}}@keyframes float-slow{0%,to{transform:translateY(0)}50%{transform:translateY(-20px)}}@keyframes wiggle{0%,to{transform:rotate(-3deg)}50%{transform:rotate(3deg)}}@keyframes sparkle{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.8)}}@keyframes gradientBG{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes pop{0%{transform:scale(1)}50%{transform:scale(1.2)}to{transform:scale(1)}}.animate-float{animation:float 6s ease-in-out infinite}.animate-float-slow{animation:float-slow 8s ease-in-out infinite}.animate-wiggle{animation:wiggle 3s ease-in-out infinite}.animate-sparkle{animation:sparkle 2s ease-in-out infinite}.fade-in{animation:fadeIn .3s ease-out}.slide-up{animation:slideUp .3s ease-out}.pop{animation:pop .3s var(--bounce)}.app-shell{display:flex;min-height:100vh;position:relative}.app-shell.shell-focused{background:linear-gradient(-45deg,#eef2ff,#f5f3ff,#f0fdfa,#fffbeb);background-size:400% 400%;animation:gradientBG 15s ease infinite}.app-shell.shell-focused .sidebar{transform:translate(calc(-1 * var(--sidebar-w)));opacity:0;pointer-events:none}.app-shell.shell-focused .main-content{margin-left:0}.sidebar{width:var(--sidebar-w);min-height:100vh;background:linear-gradient(180deg,#eef2fffa,#f5f3fffa);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-right:1px solid rgba(165,180,252,.35);box-shadow:4px 0 32px #6366f114;display:flex;flex-direction:column;padding:0;position:fixed;top:0;left:0;bottom:0;z-index:100;transition:transform var(--transition),opacity var(--transition);overflow-y:auto;overflow-x:hidden}.sidebar::-webkit-scrollbar{width:0}.sidebar-brand{height:100px;padding:12px 16px;border-bottom:1px solid rgba(165,180,252,.2);flex-shrink:0;overflow:hidden}.sidebar-logo{width:38px;height:38px;background:linear-gradient(135deg,#f59e0b,#f97316);border-radius:11px;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 12px #f59e0b4d;flex-shrink:0}.sidebar-brand-name{font-size:1.375rem;font-weight:900;color:var(--ink);letter-spacing:-.03em;line-height:1}.sidebar-brand-tagline{font-size:.725rem;font-weight:700;color:var(--ink-faint);text-transform:uppercase;letter-spacing:.06em}.sidebar-profile{margin:14px 12px 10px;padding:14px;background:linear-gradient(135deg,#ffffffe6,#eef2ff99);border:1.5px solid rgba(165,180,252,.25);border-radius:var(--radius);cursor:pointer;transition:all var(--transition);flex-shrink:0}.sidebar-profile:hover{border-color:#6366f159;box-shadow:var(--shadow)}.sidebar-profile-row{display:flex;align-items:center;gap:10px}.avatar-circle{width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.4rem;flex-shrink:0;border:2.5px solid white;box-shadow:var(--shadow-sm)}.sidebar-profile-info{flex:1;min-width:0}.sidebar-profile-name{font-weight:900;font-size:1rem;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-profile-grade{display:inline-flex;align-items:center;gap:4px;margin-top:4px;padding:2px 8px;background:var(--primary-light);color:var(--primary);border-radius:999px;font-size:.65rem;font-weight:800}.sidebar-stats{margin:0 12px 8px;display:grid;grid-template-columns:1fr 1fr;gap:8px}.sidebar-stat-item{background:#fff;border:1px solid rgba(165,180,252,.2);border-radius:12px;padding:8px 6px;text-align:center}.sidebar-stat-value{font-size:1.1rem;font-weight:900;color:var(--primary);line-height:1}.sidebar-stat-value.amber{color:var(--accent)}.sidebar-stat-label{font-size:.7rem;font-weight:800;color:var(--ink-faint);text-transform:uppercase;letter-spacing:.05em;margin-top:3px}.sidebar-section-label{padding:10px 18px 4px;font-size:.7rem;font-weight:800;color:var(--ink-faint);text-transform:uppercase;letter-spacing:.08em}.sidebar-divider{width:calc(100% - 24px);height:1px;background:#a5b4fc33;margin:6px 12px}.sidebar-nav{flex:1;display:flex;flex-direction:column;gap:2px;padding:0 10px}.sidebar-link{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-sm);font-weight:700;font-size:1rem;color:var(--ink-soft);border:1.5px solid transparent;text-decoration:none;transition:all var(--transition);width:100%}.sidebar-link-icon{width:32px;height:32px;border-radius:9px;display:flex;align-items:center;justify-content:center;font-size:1rem;flex-shrink:0;background:#a5b4fc1f;transition:all var(--transition)}.sidebar-link:hover:not(.active){background:#6366f10f;color:var(--primary)}.sidebar-link:hover:not(.active) .sidebar-link-icon{background:#6366f11f}.sidebar-link.active{background:linear-gradient(135deg,#6366f11f,#818cf814);color:var(--primary);border-color:#6366f12e;font-weight:800}.sidebar-link.active .sidebar-link-icon{background:linear-gradient(135deg,#818cf8,#6366f1);box-shadow:0 2px 8px #6366f159;color:#fff}.sidebar-link-badge{margin-left:auto;padding:2px 7px;background:var(--accent-soft);color:#92400e;border-radius:999px;font-size:.725rem;font-weight:800}.sidebar-footer{display:flex;flex-direction:column;gap:4px;padding:12px 10px 20px;border-top:1px solid rgba(165,180,252,.2);margin-top:auto;flex-shrink:0}.lang-toggle{display:flex;gap:6px;width:100%;padding:0 2px}.lang-btn{flex:1;padding:7px 4px;border:1.5px solid rgba(165,180,252,.25);background:transparent;border-radius:var(--radius-xs);font-size:.875rem;font-weight:800;color:var(--ink-faint);transition:all var(--transition)}.lang-btn.active{background:#fff;color:var(--primary);border-color:#6366f140;box-shadow:var(--shadow-sm)}.lang-btn:hover:not(.active){color:var(--primary);background:#6366f10f}.logout-btn{display:flex;align-items:center;gap:10px;padding:10px 12px;border:1.5px solid transparent;background:transparent;color:var(--ink-soft);font-size:1rem;font-weight:700;border-radius:var(--radius-sm);width:100%;transition:all var(--transition);cursor:pointer}.logout-btn:hover{background:#ef444412;color:var(--red);border-color:#ef444426}.logout-btn-icon{width:32px;height:32px;border-radius:9px;display:flex;align-items:center;justify-content:center;background:#a5b4fc1f;flex-shrink:0;transition:all var(--transition)}.logout-btn:hover .logout-btn-icon{background:#ef44441a}.main-content{flex:1;width:100%;margin-left:0;display:flex;flex-direction:column;min-height:100vh;min-width:0;overflow-x:hidden;transition:margin-left var(--transition)}.main-content.with-sidebar{margin-left:var(--sidebar-w)}.main-inner{flex:1;max-width:880px;width:100%;margin:0 auto;padding:32px 24px}.topbar{background:#ffffffd9;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid rgba(165,180,252,.2);padding:0 24px;height:var(--topbar-h);display:flex;align-items:center;gap:16px;position:sticky;top:0;z-index:50;box-shadow:0 1px 8px #6366f10f}.session-dots{display:flex;gap:6px;align-items:center}.session-dot{width:10px;height:10px;border-radius:50%;transition:all var(--transition)}.session-dot.correct{background:var(--green)}.session-dot.wrong{background:var(--red)}.session-dot.empty{background:var(--border-solid)}.topbar-divider{width:1px;height:24px;background:#a5b4fc4d}.topbar-stat{display:flex;align-items:center;gap:5px;font-size:.85rem;font-weight:800;color:var(--ink-soft);white-space:nowrap}.topbar-stat.accent{color:var(--accent)}.topbar-stat.green{color:var(--green)}.grade-chip{background:var(--primary-light);color:var(--primary);padding:3px 10px;border-radius:20px;font-size:.75rem;font-weight:900}.trial-chip{background:var(--accent-soft);color:#92400e;padding:3px 10px;border-radius:20px;font-size:.75rem;font-weight:700;cursor:pointer}.card{background:linear-gradient(135deg,#fffffff2,#eef2ffb3);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1.5px solid rgba(165,180,252,.25);border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:28px 24px}.card-sm{background:#fff;border:1px solid var(--border-solid);border-radius:var(--radius-sm);box-shadow:var(--shadow);padding:16px 20px}.primary-btn{background:linear-gradient(135deg,#818cf8,#6366f1);color:#fff;padding:14px 24px;border:none;border-radius:var(--radius-sm);font-weight:800;font-size:1rem;transition:all var(--transition);display:inline-flex;align-items:center;justify-content:center;gap:8px;box-shadow:0 4px 14px var(--primary-glow)}.primary-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px var(--primary-glow)}.primary-btn:active:not(:disabled){transform:translateY(0)}.primary-btn:disabled{opacity:.5;cursor:not-allowed}.secondary-btn{background:#fff;color:var(--ink);padding:14px 24px;border:1.5px solid rgba(165,180,252,.4);border-radius:var(--radius-sm);font-weight:700;font-size:1rem;transition:all var(--transition)}.secondary-btn:hover{background:var(--bg-alt);border-color:#6366f14d}.danger-btn{background:var(--red-soft);color:var(--red);padding:10px 20px;border:1px solid var(--red);border-radius:var(--radius-sm);font-weight:700;transition:all var(--transition)}.danger-btn:hover{background:var(--red);color:#fff}.form-input{width:100%;padding:13px 16px;border:2px solid rgba(165,180,252,.3);border-radius:var(--radius-sm);font-size:1rem;font-weight:600;color:var(--ink);background:#ffffffe6;transition:border-color var(--transition),box-shadow var(--transition);outline:none}.form-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}.form-input::-moz-placeholder{color:var(--ink-faint);font-weight:400}.form-input::placeholder{color:var(--ink-faint);font-weight:400}.form-label{display:block;font-size:.875rem;font-weight:700;color:var(--ink-soft);margin-bottom:6px}.form-group{display:flex;flex-direction:column;gap:4px}.answer-btn{background:#fff;border:2px solid rgba(165,180,252,.3);padding:20px 16px;font-size:1.6rem;font-weight:900;font-family:Outfit,Fraunces,serif;border-radius:var(--radius);box-shadow:0 4px #a5b4fc33;transition:all var(--bounce);cursor:pointer;width:100%;color:var(--ink)}.answer-btn:hover:not(:disabled){transform:translateY(-3px);box-shadow:0 7px 0 var(--primary-glow);border-color:var(--primary-soft);background:var(--sec-purple)}.answer-btn:active:not(:disabled){transform:translateY(2px);box-shadow:0 2px #a5b4fc33}.answer-btn.correct{background:var(--green-soft);border-color:var(--green);box-shadow:0 4px 0 var(--green);color:#065f46}.answer-btn.wrong{background:var(--red-soft);border-color:var(--red);box-shadow:0 4px #fecaca;color:#991b1b}.answer-btn:disabled{cursor:not-allowed}.narrative-box{font-family:Outfit,Fraunces,serif;font-size:1.4rem;font-weight:700;background:#fffffff2;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-radius:var(--radius-lg);padding:36px 44px;text-align:center;box-shadow:var(--shadow-lg);border:2px solid rgba(165,180,252,.2);position:relative;line-height:1.5;color:var(--ink)}.narrative-box:before{content:"“";position:absolute;top:8px;left:20px;font-size:4rem;color:#6366f126;font-family:Georgia,serif;line-height:1}.renderer-container{background:#fff;border-radius:var(--radius);padding:32px;display:flex;justify-content:center;align-items:center;min-height:160px;box-shadow:var(--shadow);border:1.5px solid rgba(165,180,252,.2)}.tab-bar{display:flex;gap:4px;background:#eef2ffcc;border-radius:var(--radius-sm);padding:4px}.tab-btn{flex:1;padding:8px 16px;border:none;background:transparent;border-radius:var(--radius-xs);font-weight:700;font-size:.875rem;color:var(--ink-soft);transition:all var(--transition)}.tab-btn.active{background:#fff;color:var(--primary);box-shadow:var(--shadow-sm);font-weight:800}.tab-btn:hover:not(.active){color:var(--ink);background:#ffffff80}.topic-pills{display:flex;gap:8px;flex-wrap:wrap}.topic-pill{display:flex;align-items:center;gap:6px;padding:8px 16px;border:1.5px solid rgba(165,180,252,.3);border-radius:999px;font-weight:700;font-size:.85rem;color:var(--ink-soft);background:#ffffffd9;cursor:pointer;transition:all var(--transition);white-space:nowrap}.topic-pill:hover{border-color:var(--primary-soft);color:var(--primary);background:var(--primary-light)}.topic-pill.active{border-color:var(--primary);background:linear-gradient(135deg,#818cf8,#6366f1);color:#fff;box-shadow:0 2px 10px var(--primary-glow)}.grade-pills{display:flex;gap:6px}.grade-pill{width:40px;height:40px;border-radius:12px;border:2px solid rgba(165,180,252,.3);background:#ffffffd9;font-weight:800;font-size:.9rem;color:var(--ink-soft);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--bounce)}.grade-pill:hover{border-color:var(--primary-soft)}.grade-pill.active{background:linear-gradient(135deg,#f59e0b,#f97316);border-color:transparent;color:#fff;transform:scale(1.12);box-shadow:0 4px 12px #f59e0b4d}.progress-bar{height:8px;background:#a5b4fc33;border-radius:999px;overflow:hidden}.progress-bar-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,#818cf8,#6366f1);transition:width .5s ease}.progress-bar-fill.green{background:linear-gradient(90deg,#34d399,#10b981)}.progress-bar-fill.amber{background:linear-gradient(90deg,#fbbf24,#f59e0b)}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px}.stat-card{background:linear-gradient(135deg,#fffffff2,#eef2ffb3);border:1.5px solid rgba(165,180,252,.25);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px 16px;text-align:center}.stat-number{font-family:Outfit,serif;font-size:2.2rem;font-weight:900;color:var(--primary);line-height:1}.stat-label{font-size:.845rem;font-weight:800;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.06em;margin-top:6px}.prize-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}.prize-card{background:linear-gradient(135deg,#fffffff2,#eef2ffb3);border:1.5px solid rgba(165,180,252,.25);border-radius:var(--radius);padding:20px;display:flex;flex-direction:column;gap:10px;transition:all var(--transition);position:relative;box-shadow:var(--shadow)}.prize-card:hover{border-color:#6366f159;box-shadow:var(--shadow-lg)}.prize-card.redeemed{opacity:.7}.prize-card.locked{opacity:.55}.prize-icon{font-size:2.5rem;line-height:1}.prize-name{font-weight:900;color:var(--ink);font-size:1.125rem}.prize-desc{font-size:.925rem;color:var(--ink-soft);flex:1}.prize-cost{display:inline-flex;align-items:center;gap:4px;background:var(--accent-soft);color:#92400e;padding:4px 10px;border-radius:999px;font-size:.925rem;font-weight:800}.prize-type-badge{position:absolute;top:12px;right:12px;padding:3px 10px;border-radius:999px;font-size:.65rem;font-weight:800;text-transform:uppercase;letter-spacing:.05em}.prize-type-badge.avatar{background:var(--sec-purple);color:var(--primary)}.prize-type-badge.badge{background:var(--sec-amber);color:#92400e}.prize-type-badge.item{background:var(--sec-emerald);color:#065f46}.redeemed-badge{position:absolute;top:12px;left:12px;font-size:1.2rem}.modal-backdrop{position:fixed;inset:0;background:#0f172a73;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);z-index:200;display:flex;align-items:center;justify-content:center;padding:24px;animation:fadeIn .15s ease}.modal-box{background:linear-gradient(135deg,#fffffffa,#eef2ffe6);border-radius:var(--radius-lg);padding:32px;max-width:520px;width:100%;box-shadow:var(--shadow-xl);border:1.5px solid rgba(165,180,252,.3);animation:slideUp .2s ease}.avatar-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:20px 0}.avatar-option{width:64px;height:64px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.8rem;cursor:pointer;border:3px solid transparent;transition:all var(--bounce)}.avatar-option:hover{transform:scale(1.1)}.avatar-option.selected{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow);transform:scale(1.12)}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:linear-gradient(180deg,#eef2ff,#fff7ed);position:relative;overflow:hidden}.login-card{background:linear-gradient(135deg,#fffffff7,#eef2ffd9);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-radius:var(--radius-lg);box-shadow:0 20px 60px #6366f12e,0 8px 24px #0000000f;padding:40px 36px;width:100%;max-width:480px;border:1.5px solid rgba(165,180,252,.3);position:relative;z-index:10;animation:slideUp .3s 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