@import url(https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap);body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;margin:0}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}:root{--bg-primary:#0a0a1a;--bg-secondary:#12122a;--bg-gradient:linear-gradient(135deg,#1a0a2e,#16132b 50%,#0d1f3c);--accent-cyan:#00d4ff;--accent-pink:#ff0080;--accent-purple:#7b2dff;--accent-green:#0f8;--accent-yellow:gold;--accent-orange:#ff6b35;--btn-red:linear-gradient(135deg,#ff416c,#ff4b2b);--btn-blue:linear-gradient(135deg,#667eea,#764ba2);--btn-green:linear-gradient(135deg,#11998e,#38ef7d);--btn-yellow:linear-gradient(135deg,#f7971e,#ffd200);--glass-bg:#ffffff0d;--glass-border:#ffffff1a;--glass-shadow:0 8px 32px #0000004d;--text-primary:#fff;--text-secondary:#ffffffb3;--text-muted:#fff6;--glow-cyan:0 0 20px #00d4ff80;--glow-pink:0 0 20px #ff008080;--glow-purple:0 0 20px #7b2dff80;--spacing-xs:4px;--spacing-sm:8px;--spacing-md:16px;--spacing-lg:24px;--spacing-xl:32px;--spacing-2xl:48px;--radius-sm:8px;--radius-md:12px;--radius-lg:20px;--radius-xl:30px;--radius-full:50%;--transition-fast:0.15s ease;--transition-normal:0.3s ease;--transition-slow:0.5s ease}.theme-spring{--bg-primary:#1a0f18;--bg-secondary:#251620;--bg-gradient:linear-gradient(135deg,#1a0f18,#2d1b2e 50%,#1f2c25);--accent-cyan:#ff9a9e;--accent-purple:#a18cd1;--accent-pink:#fbc2eb;--accent-green:#84fab0;--glow-cyan:0 0 20px #ff9a9e66;--btn-blue:linear-gradient(120deg,#a18cd1,#fbc2eb);--text-primary:#fff0f5}.theme-summer{--bg-primary:#0f1c2e;--bg-secondary:#0a1525;--bg-gradient:linear-gradient(135deg,#0f1c2e,#00334e 50%,#005f6b);--accent-cyan:#4facfe;--accent-purple:#00f2fe;--accent-pink:#f09819;--accent-green:#43e97b;--glow-cyan:0 0 20px #4facfe80;--btn-blue:linear-gradient(120deg,#89f7fe,#66a6ff)}.theme-autumn{--bg-primary:#1f1209;--bg-secondary:#2b1a0e;--bg-gradient:linear-gradient(135deg,#1f1209,#3e1e12 50%,#2c2005);--accent-cyan:#f6d365;--accent-purple:#fda085;--accent-pink:#ff512f;--accent-green:#d4fc79;--glow-cyan:0 0 20px #f6d36566;--btn-blue:linear-gradient(120deg,#f093fb,#f5576c)}.theme-winter{--bg-primary:#0b1021;--bg-secondary:#0f172a;--bg-gradient:linear-gradient(135deg,#09121d,#182335 50%,#1e293b);--accent-cyan:#a1c4fd;--accent-purple:#c2e9fb;--accent-pink:#e0c3fc;--accent-green:#8fd3f4;--glow-cyan:0 0 20px #a1c4fd80;--btn-blue:linear-gradient(120deg,#e0c3fc,#8ec5fc)}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:linear-gradient(135deg,#1a0a2e,#16132b 50%,#0d1f3c);background:var(--bg-gradient);background-attachment:fixed;color:#fff;color:var(--text-primary);font-family:Poppins,sans-serif;line-height:1.6;min-height:100vh;overflow-x:hidden;overflow-y:auto}a{color:inherit;text-decoration:none}button{border:none;cursor:pointer}button,input{font-family:inherit;outline:none}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes glow{0%,to{box-shadow:0 0 20px #00d4ff80;box-shadow:var(--glow-cyan)}50%{box-shadow:0 0 20px #ff008080;box-shadow:var(--glow-pink)}}@keyframes shimmer{0%{background-position:-200%}to{background-position:200%}}@keyframes scaleIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}@keyframes rotate{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}@keyframes gradientShift{0%{background-position:0 50%}50%{background-position:100% 50%}to{background-position:0 50%}}@keyframes bounceIn{0%{transform:scale(0)}50%{transform:scale(1.1)}to{transform:scale(1)}}@keyframes floatOrb{0%,to{opacity:.3;transform:translate(0) scale(1)}25%{opacity:.5;transform:translate(50px,-50px) scale(1.1)}50%{opacity:.4;transform:translate(-30px,-80px) scale(.9)}75%{opacity:.35;transform:translate(-50px,-30px) scale(1.05)}}.page-wrapper{min-height:100vh;overflow-x:hidden;overflow-y:auto;position:relative}.container{margin:0 auto;max-width:1200px;padding:0 24px;padding:0 var(--spacing-lg)}.flex-center{justify-content:center}.flex-between,.flex-center{align-items:center;display:flex}.flex-between{justify-content:space-between}.glass-card{backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);background:#ffffff0d;background:var(--glass-bg);border:1px solid #ffffff1a;border:1px solid var(--glass-border);border-radius:20px;border-radius:var(--radius-lg);box-shadow:0 8px 32px #0000004d;box-shadow:var(--glass-shadow)}.animated-bg{height:100%;left:0;overflow:hidden;pointer-events:none;position:fixed;top:0;width:100%;z-index:0}.orb{animation:floatOrb 15s ease-in-out infinite;border-radius:50%;filter:blur(60px);position:absolute}.orb-1{animation-delay:0s;background:#7b2dff;background:var(--accent-purple);height:400px;left:-100px;opacity:.3;top:-100px;width:400px}.orb-2{animation-delay:-5s;background:#00d4ff;background:var(--accent-cyan);height:300px;opacity:.25;right:-100px;top:50%;width:300px}.orb-3{animation-delay:-10s;background:#ff0080;background:var(--accent-pink);bottom:-100px;height:350px;left:30%;opacity:.2;width:350px}.navbar{-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:#0a0a1acc;border-bottom:1px solid #ffffff1a;border-bottom:1px solid var(--glass-border);left:0;padding:16px 32px;padding:var(--spacing-md) var(--spacing-xl);position:fixed;right:0;top:0;z-index:1000}.navbar-content{justify-content:space-between;margin:0 auto;max-width:1200px}.logo,.navbar-content{align-items:center;display:flex}.logo{color:#fff;color:var(--text-primary);font-size:1.5rem;font-weight:700;gap:8px;gap:var(--spacing-sm);transition:.3s ease;transition:var(--transition-normal)}.logo:hover{text-shadow:0 0 20px #00d4ff80;text-shadow:var(--glow-cyan)}.logo-icon{animation:float 3s ease-in-out infinite;font-size:2rem}.nav-links{align-items:center;display:flex;gap:24px;gap:var(--spacing-lg)}.nav-link{color:#ffffffb3;color:var(--text-secondary);font-weight:500;padding:4px 0;padding:var(--spacing-xs) 0;position:relative;transition:.3s ease;transition:var(--transition-normal)}.nav-link:hover{color:#fff;color:var(--text-primary)}.nav-link:after{background:#00d4ff;background:var(--accent-cyan);bottom:0;content:"";height:2px;left:0;position:absolute;transition:.3s ease;transition:var(--transition-normal);width:0}.nav-link:hover:after{width:100%}.btn{border-radius:30px;border-radius:var(--radius-xl);font-size:1rem;gap:var(--spacing-sm);justify-content:center;padding:16px 32px;padding:var(--spacing-md) var(--spacing-xl);position:relative;transition:.3s ease;transition:var(--transition-normal)}.btn-primary{background:linear-gradient(135deg,#00d4ff,#7b2dff);background:linear-gradient(135deg,var(--accent-cyan),var(--accent-purple));box-shadow:0 4px 20px #00d4ff4d}.btn-primary:hover{box-shadow:0 8px 30px #00d4ff80;transform:translateY(-3px)}.btn-primary:active{transform:translateY(0)}.btn-secondary{background:#0000;border:2px solid #00d4ff;border:2px solid var(--accent-cyan);color:#00d4ff;color:var(--accent-cyan)}.btn-secondary:hover{background:#00d4ff;background:var(--accent-cyan);box-shadow:0 0 20px #00d4ff80;box-shadow:var(--glow-cyan);color:#0a0a1a;color:var(--bg-primary)}.btn-ghost{background:#ffffff0d;background:var(--glass-bg);border:1px solid #ffffff1a;border:1px solid var(--glass-border);color:var(--text-primary)}.btn-ghost:hover{background:#ffffff1a;border-color:#00d4ff;border-color:var(--accent-cyan)}.btn-danger:hover{box-shadow:0 8px 20px #ff416c66}.form-group{margin-bottom:24px;margin-bottom:var(--spacing-lg)}.form-label{color:#ffffffb3;color:var(--text-secondary);display:block;font-size:.9rem;font-weight:500;margin-bottom:8px;margin-bottom:var(--spacing-sm)}.form-input{background:#ffffff0d;border:1px solid #ffffff1a;border:1px solid var(--glass-border);border-radius:12px;border-radius:var(--radius-md);color:#fff;color:var(--text-primary);font-size:1rem;padding:16px 24px;padding:var(--spacing-md) var(--spacing-lg);transition:.3s ease;transition:var(--transition-normal);width:100%}.form-input::placeholder{color:#fff6;color:var(--text-muted)}.form-input:focus{background:#ffffff14;border-color:#00d4ff;border-color:var(--accent-cyan);box-shadow:0 0 0 3px #00d4ff1a}.auth-page{align-items:center;display:flex;justify-content:center;min-height:100vh;padding:32px;padding:var(--spacing-xl);position:relative}.auth-card{animation:slideUp .5s ease-out;max-width:420px;padding:48px;padding:var(--spacing-2xl);width:100%}.auth-header{margin-bottom:32px;margin-bottom:var(--spacing-xl);text-align:center}.auth-icon{animation:bounceIn .6s ease-out;display:block;font-size:3rem;margin-bottom:16px;margin-bottom:var(--spacing-md)}.auth-title{-webkit-text-fill-color:#0000;background:linear-gradient(135deg,#00d4ff,#ff0080);background:linear-gradient(135deg,var(--accent-cyan),var(--accent-pink));-webkit-background-clip:text;background-clip:text;font-size:2rem;font-weight:700;margin-bottom:8px;margin-bottom:var(--spacing-sm)}.auth-subtitle{font-size:.95rem}.auth-footer,.auth-subtitle{color:#ffffffb3;color:var(--text-secondary)}.auth-footer{margin-top:32px;margin-top:var(--spacing-xl);text-align:center}.auth-footer a{color:#00d4ff;color:var(--accent-cyan);font-weight:600;transition:.15s ease;transition:var(--transition-fast)}.auth-footer a:hover{text-shadow:0 0 20px #00d4ff80;text-shadow:var(--glow-cyan)}.error-message{border-radius:12px}.error-message,.success-message{margin-bottom:24px;margin-bottom:var(--spacing-lg);padding:16px}.success-message{background:#00ff881a;border:1px solid #00ff884d;border-radius:12px;border-radius:var(--radius-md);color:#0f8;color:var(--accent-green);font-size:.9rem;padding:var(--spacing-md);text-align:center}.home-page{min-height:100vh;padding-top:80px;position:relative}.hero-section{animation:slideUp .6s ease-out;margin:0 auto;max-width:1200px;padding:48px 24px;padding:var(--spacing-2xl) var(--spacing-lg)}.hero-content{grid-gap:48px;grid-gap:var(--spacing-2xl);align-items:center;display:grid;gap:48px;gap:var(--spacing-2xl);grid-template-columns:1fr 1fr}@media (max-width:768px){.hero-content{grid-template-columns:1fr;text-align:center}}.hero-text{text-align:left}@media (max-width:768px){.hero-text{text-align:center}}.hero-title{-webkit-text-fill-color:#0000;animation:gradientShift 3s ease infinite;background:linear-gradient(135deg,#fff,#00d4ff 50%,#ff0080);background:linear-gradient(135deg,#fff 0,var(--accent-cyan) 50%,var(--accent-pink) 100%);-webkit-background-clip:text;background-clip:text;background-size:200% auto;font-size:clamp(2.5rem,5vw,4.5rem);font-weight:800;line-height:1.2;margin-bottom:16px;margin-bottom:var(--spacing-md)}.hero-subtitle{color:#ffffffb3;color:var(--text-secondary);font-size:1.2rem;margin-bottom:32px;margin-bottom:var(--spacing-xl);max-width:90%}.stats-card{-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:#ffffff08;border:1px solid #ffffff1a;border-radius:30px;border-radius:var(--radius-xl);box-shadow:0 20px 50px #0000004d;overflow:hidden;padding:32px;padding:var(--spacing-xl);position:relative;transform-style:preserve-3d;transition:transform .3s ease}.stats-card:hover{border-color:#00d4ff;border-color:var(--accent-cyan);transform:translateY(-5px) rotateX(5deg)}.stats-card:before{background:linear-gradient(135deg,#ffffff1a,#0000);content:"";height:100%;left:0;pointer-events:none;position:absolute;top:0;width:100%}.stats-header{gap:16px;gap:var(--spacing-md);margin-bottom:24px;margin-bottom:var(--spacing-lg)}.stats-avatar,.stats-header{align-items:center;display:flex}.stats-avatar{background:linear-gradient(135deg,#00d4ff,#7b2dff);background:linear-gradient(135deg,var(--accent-cyan),var(--accent-purple));border:3px solid #fff3;border-radius:50%;box-shadow:0 0 20px #00d4ff66;font-size:2rem;font-weight:700;height:70px;justify-content:center;width:70px}.stats-info h2{font-size:1.5rem;font-weight:700;margin:0}.stats-badge{background:#ffd70033;border:1px solid #ffd7004d;border-radius:20px;color:gold;display:inline-block;font-size:.8rem;font-weight:600;margin-top:5px;padding:4px 12px}.stats-grid{grid-gap:16px;grid-gap:var(--spacing-md);display:grid;gap:16px;gap:var(--spacing-md);grid-template-columns:1fr 1fr}.stat-item{background:#0003;border-radius:12px;border-radius:var(--radius-md);padding:16px;padding:var(--spacing-md);text-align:center}.stat-value{color:#fff;color:var(--text-primary);display:block;font-size:1.5rem;font-weight:700}.stat-label{color:#ffffffb3;color:var(--text-secondary);font-size:.8rem}.search-section{margin:0 auto 48px;margin:0 auto var(--spacing-2xl);max-width:600px;padding:0 24px;padding:0 var(--spacing-lg);position:relative;transform:translateY(-50%);z-index:10}.search-input-wrapper{position:relative;width:100%}.search-icon{color:#ffffffb3;color:var(--text-secondary);left:20px;pointer-events:none;position:absolute;top:50%;transform:translateY(-50%)}.search-input{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffff0d;background:var(--glass-bg);border:1px solid #ffffff1a;border:1px solid var(--glass-border);border-radius:50px;box-shadow:0 10px 30px #0003;color:#fff;color:var(--text-primary);font-size:1.1rem;padding:18px 20px 18px 55px;transition:all .3s ease;width:100%}.search-input:focus{background:#ffffff1a;border-color:#00d4ff;border-color:var(--accent-cyan);box-shadow:0 15px 40px #00d4ff33;outline:none;transform:translateY(-2px)}.user-welcome{animation:slideUp .7s ease-out;gap:16px;gap:var(--spacing-md);margin-bottom:32px;margin-bottom:var(--spacing-xl)}.user-avatar,.user-welcome{align-items:center;display:flex;justify-content:center}.user-avatar{background:linear-gradient(135deg,#00d4ff,#7b2dff);background:linear-gradient(135deg,var(--accent-cyan),var(--accent-purple));border-radius:50%;border-radius:var(--radius-full);font-size:1.5rem;font-weight:700;height:50px;width:50px}.user-info h2{font-size:1.3rem;margin-bottom:2px}.user-info p{color:#ffffffb3;color:var(--text-secondary);font-size:.9rem}.topics-section{margin:0 auto;max-width:900px;padding:24px;padding:var(--spacing-lg)}.topics-grid{grid-gap:24px;grid-gap:var(--spacing-lg);display:grid;gap:24px;gap:var(--spacing-lg);grid-template-columns:repeat(auto-fill,minmax(180px,1fr))}.topic-card{animation:scaleIn .4s ease-out backwards;border-radius:20px;border-radius:var(--radius-lg);cursor:pointer;overflow:hidden;padding:32px 24px;padding:var(--spacing-xl) var(--spacing-lg);position:relative;text-align:center}.topic-card,.topic-card:before{transition:.3s ease;transition:var(--transition-normal)}.topic-card:before{background:inherit;content:"";filter:blur(20px);inset:0;opacity:0;position:absolute;z-index:-1}.topic-card:hover{transform:translateY(-8px) scale(1.02)}.topic-card:hover:before{opacity:.5}.topic-icon{display:block;font-size:2.5rem;margin-bottom:16px;margin-bottom:var(--spacing-md)}.topic-name{font-size:1.1rem;font-weight:600}.topic-card[data-color-index="0"]{background:linear-gradient(135deg,#4facfe,#00f2fe);box-shadow:0 4px 15px #00f2fe4d}.topic-card[data-color-index="1"]{background:linear-gradient(135deg,#667eea,#764ba2);box-shadow:0 4px 15px #764ba24d}.topic-card[data-color-index="2"]{background:linear-gradient(135deg,#ff9a9e,#fecfef 99%,#fecfef);box-shadow:0 4px 15px #ff9a9e4d}.topic-card[data-color-index="3"]{background:linear-gradient(135deg,#f6d365,#fda085);box-shadow:0 4px 15px #fda0854d}.topic-card[data-color-index="4"]{background:linear-gradient(135deg,#43e97b,#38f9d7);box-shadow:0 4px 15px #38f9d74d}.topic-card[data-color-index="5"]{background:linear-gradient(135deg,#4b6cb7,#182848);box-shadow:0 4px 15px #1828484d}.topic-card[data-color-index="6"]{background:linear-gradient(135deg,#96fbc4,#f9f586);box-shadow:0 4px 15px #96fbc44d;color:#0a0a1a}.topic-card[data-color-index="7"]{background:linear-gradient(135deg,#ff758c,#ff7eb3);box-shadow:0 4px 15px #ff758c4d}.topic-card:hover{box-shadow:0 15px 30px #0006;transform:translateY(-10px) scale(1.05);z-index:10}.topic-card .topic-icon{font-size:3rem;margin-bottom:8px;margin-bottom:var(--spacing-sm);transition:transform .3s ease}.topic-card:hover .topic-icon{transform:scale(1.2) rotate(5deg)}.topic-card .topic-name{font-size:1.25rem;font-weight:700;text-shadow:0 2px 4px #0003}.topic-card .topic-desc{display:block;font-size:.9rem;margin-top:4px;opacity:.9}.guest-cta{animation:slideUp .6s ease-out;margin:32px auto;margin:var(--spacing-xl) auto;max-width:500px;padding:48px;padding:var(--spacing-2xl);text-align:center}.guest-cta p{color:#ffffffb3;color:var(--text-secondary);font-size:1.1rem;margin-bottom:32px;margin-bottom:var(--spacing-xl)}.cta-buttons{display:flex;flex-wrap:wrap;gap:16px;gap:var(--spacing-md);justify-content:center}.quiz-page{padding:24px;padding:var(--spacing-lg)}.quiz-game-container{display:flex;flex:1 1;flex-direction:column;margin:0 auto}.quiz-game-header{align-items:center;animation:slideUp .4s ease-out;display:flex;justify-content:space-between;margin-bottom:24px;margin-bottom:var(--spacing-lg);padding:16px 24px;padding:var(--spacing-md) var(--spacing-lg)}.score-badge{background:#ffffff0d;background:var(--glass-bg);border:1px solid #ffffff1a;border:1px solid var(--glass-border);border-radius:30px;border-radius:var(--radius-xl);font-size:1.1rem;font-weight:600;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md)}.score-badge .icon{font-size:1.3rem}.streak-badge{animation:pulse 1s ease infinite;color:#ff6b35;color:var(--accent-orange)}.timer-container{flex:1 1;margin:0 24px;margin:0 var(--spacing-lg);max-width:400px}.timer-bar{background:#ffffff1a;border-radius:6px;height:12px;overflow:hidden;position:relative}.timer-fill{background:linear-gradient(90deg,#00d4ff,#0f8);background:linear-gradient(90deg,var(--accent-cyan),var(--accent-green));border-radius:6px;transition:width 1s linear}.timer-fill.warning{background:linear-gradient(90deg,gold,#ff6b35);background:linear-gradient(90deg,var(--accent-yellow),var(--accent-orange))}.timer-fill.danger{animation:pulse .5s ease infinite;background:linear-gradient(90deg,#ff6b35,#ff416c);background:linear-gradient(90deg,var(--accent-orange),#ff416c)}.time-display{font-size:1.1rem;gap:8px;gap:var(--spacing-sm)}.question-card,.time-display{align-items:center;display:flex;font-weight:600}.question-card{animation:scaleIn .4s ease-out;font-size:1.4rem;justify-content:center;line-height:1.5;margin-bottom:32px;margin-bottom:var(--spacing-xl);min-height:180px;padding:48px;padding:var(--spacing-2xl)}.loading-state{align-items:center;display:flex;flex-direction:column;gap:16px;gap:var(--spacing-md)}.loading-spinner{animation:rotate .8s linear infinite;border:3px solid #ffffff1a;border-top-color:#00d4ff;border:3px solid var(--glass-border);border-radius:50%;border-top-color:var(--accent-cyan);height:40px;width:40px}.answers-grid{grid-gap:16px;grid-gap:var(--spacing-md);gap:16px;gap:var(--spacing-md);grid-template-columns:repeat(2,1fr);margin-bottom:32px;margin-bottom:var(--spacing-xl)}.answer-btn{border-radius:12px;border-radius:var(--radius-md);box-shadow:0 4px 0 #0003;color:#fff;font-size:1.1rem;font-weight:600;overflow:hidden;padding:24px 32px;padding:var(--spacing-lg) var(--spacing-xl);position:relative;text-align:left;transition:.3s ease;transition:var(--transition-normal)}.answer-btn:active:not(:disabled){box-shadow:none;transform:translateY(4px)}.answer-btn:hover:not(:disabled){box-shadow:0 6px 0 #0003,0 10px 30px #0000004d;transform:translateY(-2px)}.answer-btn:first-child{animation:slideUp .3s ease-out .1s backwards;background:linear-gradient(135deg,#667eea,#764ba2);background:var(--btn-blue)}.answer-btn:nth-child(2){animation:slideUp .3s ease-out .15s backwards;background:linear-gradient(135deg,#11998e,#38ef7d);background:var(--btn-green)}.answer-btn:nth-child(3){animation:slideUp .3s ease-out .2s backwards;background:linear-gradient(135deg,#f7971e,#ffd200);background:var(--btn-yellow)}.answer-btn:nth-child(4){animation:slideUp .3s ease-out .25s backwards;background:linear-gradient(135deg,#ff416c,#ff4b2b);background:var(--btn-red)}.answer-btn:disabled{cursor:not-allowed;opacity:.7}.answer-btn.correct{animation:bounceIn .4s ease-out!important;background:linear-gradient(135deg,#0f8,#0c6)!important;background:linear-gradient(135deg,var(--accent-green),#0c6)!important}.answer-btn.wrong{background:#ff416c80!important;opacity:.5}.answer-btn.hidden{opacity:0;pointer-events:none}.powerups-dock{animation:slideUp .5s ease-out .3s backwards;gap:16px;gap:var(--spacing-md)}.powerup-btn,.powerups-dock{padding:16px;padding:var(--spacing-md)}.powerup-btn{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:12px;border-radius:var(--radius-md);color:#fff;color:var(--text-primary);flex-direction:column;font-size:1.5rem;gap:4px;min-width:70px;transition:.3s ease;transition:var(--transition-normal)}.powerup-btn:hover:not(:disabled){background:#ffffff1a;box-shadow:0 0 20px #00d4ff80;box-shadow:var(--glow-cyan);transform:translateY(-3px)}.powerup-btn:disabled{opacity:.4}.powerup-btn.active{border-color:#00d4ff;border-color:var(--accent-cyan);box-shadow:0 0 20px #00d4ff80;box-shadow:var(--glow-cyan)}.powerup-count{color:#ffffffb3;color:var(--text-secondary);font-size:.75rem;font-weight:600}.result-section{animation:bounceIn .5s ease-out;margin-top:32px;margin-top:var(--spacing-xl);text-align:center}.result-message{font-size:1.8rem;font-weight:700;margin-bottom:16px;margin-bottom:var(--spacing-md)}.result-message.correct{color:#0f8;color:var(--accent-green);text-shadow:0 0 20px #00ff8880}.result-message.wrong{color:#ff6b8a}.streak-bonus{color:#ff6b35;color:var(--accent-orange);margin-bottom:24px;margin-bottom:var(--spacing-lg)}.next-btn{font-size:1.1rem;padding:16px 48px;padding:var(--spacing-md) var(--spacing-2xl)}@media (max-width:768px){.navbar{padding:16px;padding:var(--spacing-md)}.hero-title{font-size:2rem}.topics-grid{gap:16px;gap:var(--spacing-md);grid-template-columns:repeat(2,1fr)}.topic-card{padding:24px 16px;padding:var(--spacing-lg) var(--spacing-md)}.topic-icon{font-size:2rem}.answers-grid{grid-template-columns:1fr}.quiz-game-header{flex-wrap:wrap;gap:16px;gap:var(--spacing-md)}.timer-container{margin:0 0 16px;margin:0 0 var(--spacing-md) 0;max-width:none;order:-1;width:100%}.question-card{font-size:1.2rem;padding:32px;padding:var(--spacing-xl)}.powerups-dock{flex-wrap:wrap}.auth-card{padding:32px;padding:var(--spacing-xl)}}@media (max-width:480px){.cta-buttons{flex-direction:column}.btn{width:100%}.user-welcome{flex-direction:column;text-align:center}}.chat-list-popup{animation:popupSlide .2s ease;background:#1a1a2e;border:1px solid #ffffff14;border-radius:12px;box-shadow:0 8px 30px #0006;max-height:480px;overflow:hidden;position:absolute;right:0;top:calc(100% + 8px);width:340px;z-index:1000}@keyframes popupSlide{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.chat-list-header{align-items:center;border-bottom:1px solid #ffffff0f;display:flex;justify-content:space-between;padding:16px}.chat-list-header h3{color:#fff;font-size:1.25rem;font-weight:700;margin:0}.chat-list-content{max-height:360px;overflow-y:auto;padding:8px}.chat-list-content::-webkit-scrollbar{width:4px}.chat-list-content::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:2px}.chat-list-item{align-items:center;border-radius:10px;cursor:pointer;display:flex;gap:12px;padding:10px 12px;transition:background .15s}.chat-list-item:hover{background:#ffffff0f}.chat-list-avatar{align-items:center;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:50%;color:#fff;display:flex;flex-shrink:0;font-size:1.1rem;font-weight:600;height:48px;justify-content:center;position:relative;width:48px}.status-dot-mini{background:#6b7280;border:2px solid #1a1a2e;border-radius:50%;bottom:2px;height:12px;position:absolute;right:2px;width:12px}.status-dot-mini.online{background:#22c55e}.chat-list-info{display:flex;flex:1 1;flex-direction:column;gap:2px;min-width:0}.chat-list-info .friend-name{color:#f0f0f0;font-size:.95rem;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-list-info .friend-status{color:#888;font-size:.8rem}.empty-chat-list{color:#888;padding:32px 16px;text-align:center}.empty-chat-list p{margin-bottom:12px}.empty-chat-list button{background:linear-gradient(135deg,#667eea,#764ba2);border:none;border-radius:8px;color:#fff;cursor:pointer;font-weight:500;padding:8px 20px;transition:transform .15s,box-shadow .15s}.empty-chat-list button:hover{box-shadow:0 4px 12px #667eea4d;transform:scale(1.02)}.quiz-page{flex-direction:column;justify-content:center;min-height:100vh;padding-bottom:40px;padding-top:80px;position:relative;z-index:1}.quiz-header,.quiz-page{align-items:center;display:flex}.quiz-header{background:linear-gradient(180deg,#000c,#0000);justify-content:space-between;left:0;padding:20px 40px;pointer-events:none;position:fixed;right:0;top:0;z-index:100}.exit-btn{align-items:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffff1a;border:1px solid #fff3;border-radius:12px;color:#fff;cursor:pointer;display:flex;font-weight:600;gap:8px;padding:10px 15px;pointer-events:auto;transition:all .3s ease}.exit-btn:hover{background:#fff3;box-shadow:0 4px 15px #ffffff1a;transform:translateY(-2px)}.score-badge{align-items:center;border-radius:20px;display:flex;gap:8px;padding:8px 16px;pointer-events:auto}.streak-badge{background:#ff6b3533;border-color:#ff6b35}.timer-container{margin-bottom:30px;max-width:800px;position:relative;width:100%}.timer-labels{color:var(--text-secondary);display:flex;font-weight:600;justify-content:space-between;margin-bottom:8px}.timer-track{background:#ffffff1a;border-radius:4px;height:8px;overflow:hidden}.timer-fill{height:100%;transition:width 1s linear,background .3s ease}.skip-btn{animation:pulse 1.5s infinite;background:var(--accent-cyan);border:none;border-radius:20px;box-shadow:0 0 15px #00d4ff80;color:#000;cursor:pointer;font-size:.9rem;font-weight:700;padding:6px 16px;position:absolute;right:0;top:-5px;transform:translateY(-100%);transition:all .3s ease;z-index:200}.skip-btn:hover{transform:translateY(-105%) scale(1.05)}.quiz-game-container{max-width:900px;padding:0 20px;width:100%}.question-card{animation:slideUp .6s cubic-bezier(.2,.8,.2,1);border:1px solid #ffffff26;box-shadow:0 10px 40px #0006;margin-bottom:40px;padding:40px;text-align:center}.question-text{color:#fff;font-size:1.8rem;font-weight:600;line-height:1.4}.answers-grid{grid-gap:20px;display:grid;gap:20px;grid-template-columns:1fr 1fr;perspective:1000px}.answer-option{align-items:center;background:#ffffff0d;border:1px solid #ffffff1a;border-radius:16px;color:#fff;cursor:pointer;display:flex;font-size:1.1rem;justify-content:center;min-height:80px;overflow:hidden;padding:25px;position:relative;text-align:center;transition:all .2s cubic-bezier(.2,.8,.2,1)}.answer-option:hover:not(:disabled){background:#ffffff1a;border-color:#ffffff4d;box-shadow:0 4px 20px #0003;transform:translateY(-2px)}.answer-option:disabled{cursor:not-allowed}.powerups-dock{backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);background:#ffffff08;border:1px solid #ffffff1a;border-radius:30px;box-shadow:0 10px 30px #0003;gap:25px;margin-top:40px;padding:20px 40px;transition:all .3s cubic-bezier(.2,.8,.2,1)}.powerup-btn,.powerups-dock{display:flex;justify-content:center}.powerup-btn{align-items:center;background:#ffffff0d;border:1px solid #ffffff1a;border-radius:20px;cursor:pointer;font-size:2rem;height:70px;position:relative;transition:all .3s cubic-bezier(.34,1.56,.64,1);width:70px}.powerup-btn:hover:not(:disabled){background:#ffffff26;border-color:#ffffff80;box-shadow:0 10px 25px #00d4ff4d;transform:translateY(-10px) scale(1.1)}.powerup-btn:active:not(:disabled){transform:translateY(-5px) scale(.95)}.powerup-btn:disabled{cursor:not-allowed;filter:grayscale(1);opacity:.3}.powerup-count{align-items:center;background:linear-gradient(135deg,#ff416c,#ff4b2b);border:2px solid #1a1a2e;border-radius:50%;box-shadow:0 2px 5px #0000004d;color:#fff;display:flex;font-size:.8rem;font-weight:700;height:24px;justify-content:center;min-width:24px;position:absolute;right:-8px;top:-8px;z-index:10}.active-powerup{animation:glow-pulse 1.5s infinite alternate;background:#ffd7001a!important;border:2px solid gold!important;box-shadow:0 0 20px #ffd70066}@keyframes glow-pulse{0%{box-shadow:0 0 10px #ffd70066}to{box-shadow:0 0 25px #ffd700b3}}.result-overlay{align-items:center;animation:slideUp .4s cubic-bezier(.2,.8,.2,1);backdrop-filter:blur(30px);-webkit-backdrop-filter:blur(30px);background:#0a0a1af2;border-top-style:solid;border-top-width:4px;bottom:0;box-shadow:0 -10px 50px #00000080;display:flex;flex-direction:column;left:0;padding:30px;position:fixed;right:0;z-index:1000}.result-overlay.correct{border-top-color:#0f8}.result-overlay.wrong{border-top-color:#ff416c}.result-title{font-size:2.2rem;font-weight:800;margin-bottom:10px;text-shadow:0 0 20px #00000080}.streak-bonus{animation:bounce 2s infinite;color:gold;font-size:1.2rem;font-weight:700;margin-bottom:20px}.explanation-box{background:#ffffff0d;border:1px solid #ffffff1a;border-radius:16px;margin-bottom:30px;max-width:800px;padding:25px;text-align:left;width:100%}.explanation-title{align-items:center;color:var(--accent-cyan);display:flex;font-size:1.1rem;font-weight:700;gap:10px;letter-spacing:1px;margin-bottom:12px;text-transform:uppercase}.explanation-text{color:var(--text-secondary);font-size:1.05rem;line-height:1.6}.next-btn{animation:pulse 2s infinite;background:linear-gradient(135deg,var(--accent-cyan),var(--accent-blue));border:none;border-radius:50px;box-shadow:0 4px 20px #00d4ff66;color:#fff;cursor:pointer;font-size:1.3rem;font-weight:800;padding:16px 50px;transition:all .3s ease}.next-btn:hover{box-shadow:0 8px 30px #00d4ff99;transform:translateY(-3px) scale(1.02)}.waiting-host{align-items:center;background:#ffffff1a;border:1px solid #ffffff1a;border-radius:30px;color:var(--accent-cyan);display:flex;font-size:1.1rem;font-weight:600;gap:10px;padding:15px 30px}@media (max-width:768px){.answers-grid{grid-template-columns:1fr}.quiz-header{padding:15px 20px}.question-text{font-size:1.4rem}}@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_AMS-Regular.73ea273a72f4aca30ca5.woff2) format("woff2"),url(/static/media/KaTeX_AMS-Regular.d562e886c52f12660a41.woff) format("woff"),url(/static/media/KaTeX_AMS-Regular.853be92419a6c3766b9a.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/static/media/KaTeX_Caligraphic-Bold.a1abf90dfd72792a577a.woff2) format("woff2"),url(/static/media/KaTeX_Caligraphic-Bold.d757c535a2e5902f1325.woff) format("woff"),url(/static/media/KaTeX_Caligraphic-Bold.7489a2fbfb9bfe704420.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Caligraphic-Regular.d6484fce1ef428d5bd94.woff2) format("woff2"),url(/static/media/KaTeX_Caligraphic-Regular.db074fa22cf224af93d7.woff) format("woff"),url(/static/media/KaTeX_Caligraphic-Regular.7e873d3833eb108a0758.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/static/media/KaTeX_Fraktur-Bold.931d67ea207ab37ee693.woff2) format("woff2"),url(/static/media/KaTeX_Fraktur-Bold.354501bac435c3264834.woff) format("woff"),url(/static/media/KaTeX_Fraktur-Bold.4c761b3711973ab04edf.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Fraktur-Regular.172d3529b26f8cedef6b.woff2) format("woff2"),url(/static/media/KaTeX_Fraktur-Regular.6fdf0ac577be0ba82a4c.woff) format("woff"),url(/static/media/KaTeX_Fraktur-Regular.ed305b5434865e06ffde.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/static/media/KaTeX_Main-Bold.39890742bc957b368704.woff2) format("woff2"),url(/static/media/KaTeX_Main-Bold.0c3b8929d377c0e9b2f3.woff) format("woff"),url(/static/media/KaTeX_Main-Bold.8169508bf58f8bd92ad8.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/static/media/KaTeX_Main-BoldItalic.20f389c4120be058d80a.woff2) format("woff2"),url(/static/media/KaTeX_Main-BoldItalic.428978dc7837d46de091.woff) format("woff"),url(/static/media/KaTeX_Main-BoldItalic.828abcb200061cffbaae.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/static/media/KaTeX_Main-Italic.fe2176f79edaa716e621.woff2) format("woff2"),url(/static/media/KaTeX_Main-Italic.fd947498bc16392e76c2.woff) format("woff"),url(/static/media/KaTeX_Main-Italic.fa675e5e4bec9eb250b6.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Main-Regular.f650f111a3b890d116f1.woff2) format("woff2"),url(/static/media/KaTeX_Main-Regular.4f35fbcc9ee8614c2bcc.woff) format("woff"),url(/static/media/KaTeX_Main-Regular.9eba1d77abcf2aa6e94e.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/static/media/KaTeX_Math-BoldItalic.dcbcbd93bac0470b462d.woff2) format("woff2"),url(/static/media/KaTeX_Math-BoldItalic.3f07ed67f06c720120ce.woff) format("woff"),url(/static/media/KaTeX_Math-BoldItalic.bf2d440b3a42ea78a998.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/static/media/KaTeX_Math-Italic.6d3d25f4820d0da8f01f.woff2) format("woff2"),url(/static/media/KaTeX_Math-Italic.96759856b4e70f3a8338.woff) format("woff"),url(/static/media/KaTeX_Math-Italic.8a5f936332e8028c7278.ttf) format("truetype")}@font-face{font-display:block;font-family:"KaTeX_SansSerif";font-style:normal;font-weight:700;src:url(/static/media/KaTeX_SansSerif-Bold.95591a929f0d32aa282a.woff2) format("woff2"),url(/static/media/KaTeX_SansSerif-Bold.b9cd458ac6d5889ff9c3.woff) format("woff"),url(/static/media/KaTeX_SansSerif-Bold.5b49f4993ae22d7975b4.ttf) format("truetype")}@font-face{font-display:block;font-family:"KaTeX_SansSerif";font-style:italic;font-weight:400;src:url(/static/media/KaTeX_SansSerif-Italic.7d393d382f3e7fb1c637.woff2) format("woff2"),url(/static/media/KaTeX_SansSerif-Italic.8d593cfaa96238d5e2f8.woff) format("woff"),url(/static/media/KaTeX_SansSerif-Italic.b257a18c016f37ee4543.ttf) format("truetype")}@font-face{font-display:block;font-family:"KaTeX_SansSerif";font-style:normal;font-weight:400;src:url(/static/media/KaTeX_SansSerif-Regular.cd5e231e0cc53b2cb2c0.woff2) format("woff2"),url(/static/media/KaTeX_SansSerif-Regular.02271ec5cb9f5b4588ac.woff) format("woff"),url(/static/media/KaTeX_SansSerif-Regular.2f7bc363fc5424ebda59.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Script-Regular.c81d1b2a4b75d3eded60.woff2) format("woff2"),url(/static/media/KaTeX_Script-Regular.073b3402d036714b4370.woff) format("woff"),url(/static/media/KaTeX_Script-Regular.fc9ba5249878cd8f8d88.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Size1-Regular.6eec866c69313624be60.woff2) format("woff2"),url(/static/media/KaTeX_Size1-Regular.0108e89c9003e8c14ea3.woff) format("woff"),url(/static/media/KaTeX_Size1-Regular.6de7d4b539221a49e9e2.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Size2-Regular.2960900c4f271311eb36.woff2) format("woff2"),url(/static/media/KaTeX_Size2-Regular.3a99e70aee4076660d38.woff) format("woff"),url(/static/media/KaTeX_Size2-Regular.57f5c1837853986ea1db.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Size3-Regular.e1951519f6f0596f7356.woff2) format("woff2"),url(/static/media/KaTeX_Size3-Regular.7947224e8a9914fa332b.woff) format("woff"),url(/static/media/KaTeX_Size3-Regular.8d6b6822586eea3d3b20.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Size4-Regular.e418bf257af1052628d8.woff2) format("woff2"),url(/static/media/KaTeX_Size4-Regular.aeffd8025cba3647f1a6.woff) format("woff"),url(/static/media/KaTeX_Size4-Regular.4ad7c7e8bb8d10a34bb7.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Typewriter-Regular.c295e7f71970f03c0549.woff2) format("woff2"),url(/static/media/KaTeX_Typewriter-Regular.4c6b94fd1d07f8beff7c.woff) format("woff"),url(/static/media/KaTeX_Typewriter-Regular.c5c02d763c89380dcb4e.ttf) format("truetype")}.katex{font:normal 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.16.27"}.katex .katex-mathml{clip:rect(1px,1px,1px,1px);border:0;height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.newline{display:block}.katex .base{position:relative;white-space:nowrap;width:-webkit-min-content;width:min-content}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}:root{--toastify-color-light:#fff;--toastify-color-dark:#121212;--toastify-color-info:#3498db;--toastify-color-success:#07bc0c;--toastify-color-warning:#f1c40f;--toastify-color-error:#e74d3c;--toastify-color-transparent:#ffffffb3;--toastify-icon-color-info:var(--toastify-color-info);--toastify-icon-color-success:var(--toastify-color-success);--toastify-icon-color-warning:var(--toastify-color-warning);--toastify-icon-color-error:var(--toastify-color-error);--toastify-container-width:fit-content;--toastify-toast-width:320px;--toastify-toast-offset:16px;--toastify-toast-top:max(var(--toastify-toast-offset),env(safe-area-inset-top));--toastify-toast-right:max(var(--toastify-toast-offset),env(safe-area-inset-right));--toastify-toast-left:max(var(--toastify-toast-offset),env(safe-area-inset-left));--toastify-toast-bottom:max(var(--toastify-toast-offset),env(safe-area-inset-bottom));--toastify-toast-background:#fff;--toastify-toast-padding:14px;--toastify-toast-min-height:64px;--toastify-toast-max-height:800px;--toastify-toast-bd-radius:6px;--toastify-toast-shadow:0px 4px 12px #0000001a;--toastify-font-family:sans-serif;--toastify-z-index:9999;--toastify-text-color-light:#757575;--toastify-text-color-dark:#fff;--toastify-text-color-info:#fff;--toastify-text-color-success:#fff;--toastify-text-color-warning:#fff;--toastify-text-color-error:#fff;--toastify-spinner-color:#616161;--toastify-spinner-color-empty-area:#e0e0e0;--toastify-color-progress-light:linear-gradient(90deg,#4cd964,#5ac8fa,#007aff,#34aadc,#5856d6,#ff2d55);--toastify-color-progress-dark:#bb86fc;--toastify-color-progress-info:var(--toastify-color-info);--toastify-color-progress-success:var(--toastify-color-success);--toastify-color-progress-warning:var(--toastify-color-warning);--toastify-color-progress-error:var(--toastify-color-error);--toastify-color-progress-bgo:0.2}.Toastify__toast-container{box-sizing:border-box;color:#fff;display:flex;flex-direction:column;position:fixed;-webkit-transform:translateZ(9999);-webkit-transform:translateZ(var(--toastify-z-index));width:-webkit-fit-content;width:fit-content;width:var(--toastify-container-width);z-index:9999;z-index:var(--toastify-z-index)}.Toastify__toast-container--top-left{left:max(16px,env(safe-area-inset-left));left:var(--toastify-toast-left);top:max(16px,env(safe-area-inset-top));top:var(--toastify-toast-top)}.Toastify__toast-container--top-center{align-items:center;left:50%;top:max(16px,env(safe-area-inset-top));top:var(--toastify-toast-top);transform:translateX(-50%)}.Toastify__toast-container--top-right{align-items:end;right:max(16px,env(safe-area-inset-right));right:var(--toastify-toast-right);top:max(16px,env(safe-area-inset-top));top:var(--toastify-toast-top)}.Toastify__toast-container--bottom-left{bottom:max(16px,env(safe-area-inset-bottom));bottom:var(--toastify-toast-bottom);left:max(16px,env(safe-area-inset-left));left:var(--toastify-toast-left)}.Toastify__toast-container--bottom-center{align-items:center;bottom:max(16px,env(safe-area-inset-bottom));bottom:var(--toastify-toast-bottom);left:50%;transform:translateX(-50%)}.Toastify__toast-container--bottom-right{align-items:end;bottom:max(16px,env(safe-area-inset-bottom));bottom:var(--toastify-toast-bottom);right:max(16px,env(safe-area-inset-right));right:var(--toastify-toast-right)}.Toastify__toast{--y:0;align-items:center;border-radius:6px;border-radius:var(--toastify-toast-bd-radius);box-shadow:0 4px 12px #0000001a;box-shadow:var(--toastify-toast-shadow);box-sizing:border-box;display:flex;flex:1 1 auto;font-family:sans-serif;font-family:var(--toastify-font-family);margin-bottom:1rem;max-height:800px;max-height:var(--toastify-toast-max-height);min-height:64px;min-height:var(--toastify-toast-min-height);padding:14px;padding:var(--toastify-toast-padding);position:relative;touch-action:none;width:320px;width:var(--toastify-toast-width);word-break:break-word;z-index:0}@media only screen and (max-width:480px){.Toastify__toast-container{left:env(safe-area-inset-left);margin:0;width:100vw}.Toastify__toast-container--top-center,.Toastify__toast-container--top-left,.Toastify__toast-container--top-right{top:env(safe-area-inset-top);transform:translateX(0)}.Toastify__toast-container--bottom-center,.Toastify__toast-container--bottom-left,.Toastify__toast-container--bottom-right{bottom:env(safe-area-inset-bottom);transform:translateX(0)}.Toastify__toast-container--rtl{left:auto;right:env(safe-area-inset-right)}.Toastify__toast{--toastify-toast-width:100%;border-radius:0;margin-bottom:0}}.Toastify__toast-container[data-stacked=true]{width:320px;width:var(--toastify-toast-width)}.Toastify__toast--stacked{position:absolute;transform:translate3d(0,var(--y),0) scale(var(--s));transition:transform .3s;width:100%}.Toastify__toast--stacked[data-collapsed] .Toastify__close-button,.Toastify__toast--stacked[data-collapsed] .Toastify__toast-body{transition:opacity .1s}.Toastify__toast--stacked[data-collapsed=false]{overflow:visible}.Toastify__toast--stacked[data-collapsed=true]:not(:last-child)>*{opacity:0}.Toastify__toast--stacked:after{bottom:100%;content:"";height:calc(var(--g)*1px);left:0;position:absolute;right:0}.Toastify__toast--stacked[data-pos=top]{top:0}.Toastify__toast--stacked[data-pos=bot]{bottom:0}.Toastify__toast--stacked[data-pos=bot].Toastify__toast--stacked:before{transform-origin:top}.Toastify__toast--stacked[data-pos=top].Toastify__toast--stacked:before{transform-origin:bottom}.Toastify__toast--stacked:before{bottom:0;content:"";height:100%;left:0;position:absolute;right:0;transform:scaleY(3);z-index:-1}.Toastify__toast--rtl{direction:rtl}.Toastify__toast--close-on-click{cursor:pointer}.Toastify__toast-icon{-webkit-margin-end:10px;display:flex;flex-shrink:0;margin-inline-end:10px;width:22px}.Toastify--animate{animation-duration:.5s;animation-fill-mode:both}.Toastify--animate-icon{animation-duration:.3s;animation-fill-mode:both}.Toastify__toast-theme--dark{background:#121212;background:var(--toastify-color-dark);color:#fff;color:var(--toastify-text-color-dark)}.Toastify__toast-theme--colored.Toastify__toast--default,.Toastify__toast-theme--light{background:#fff;background:var(--toastify-color-light);color:#757575;color:var(--toastify-text-color-light)}.Toastify__toast-theme--colored.Toastify__toast--info{background:#3498db;background:var(--toastify-color-info);color:#fff;color:var(--toastify-text-color-info)}.Toastify__toast-theme--colored.Toastify__toast--success{background:#07bc0c;background:var(--toastify-color-success);color:#fff;color:var(--toastify-text-color-success)}.Toastify__toast-theme--colored.Toastify__toast--warning{background:#f1c40f;background:var(--toastify-color-warning);color:#fff;color:var(--toastify-text-color-warning)}.Toastify__toast-theme--colored.Toastify__toast--error{background:#e74d3c;background:var(--toastify-color-error);color:#fff;color:var(--toastify-text-color-error)}.Toastify__progress-bar-theme--light{background:linear-gradient(90deg,#4cd964,#5ac8fa,#007aff,#34aadc,#5856d6,#ff2d55);background:var(--toastify-color-progress-light)}.Toastify__progress-bar-theme--dark{background:#bb86fc;background:var(--toastify-color-progress-dark)}.Toastify__progress-bar--info{background:#3498db;background:var(--toastify-color-progress-info)}.Toastify__progress-bar--success{background:#07bc0c;background:var(--toastify-color-progress-success)}.Toastify__progress-bar--warning{background:#f1c40f;background:var(--toastify-color-progress-warning)}.Toastify__progress-bar--error{background:#e74d3c;background:var(--toastify-color-progress-error)}.Toastify__progress-bar-theme--colored.Toastify__progress-bar--error,.Toastify__progress-bar-theme--colored.Toastify__progress-bar--info,.Toastify__progress-bar-theme--colored.Toastify__progress-bar--success,.Toastify__progress-bar-theme--colored.Toastify__progress-bar--warning{background:#ffffffb3;background:var(--toastify-color-transparent)}.Toastify__close-button{background:#0000;border:none;color:#fff;cursor:pointer;opacity:.7;outline:none;padding:0;position:absolute;right:6px;top:6px;transition:.3s ease;z-index:1}.Toastify__toast--rtl .Toastify__close-button{left:6px;right:auto}.Toastify__close-button--light{color:#000;opacity:.3}.Toastify__close-button>svg{fill:currentColor;height:16px;width:14px}.Toastify__close-button:focus,.Toastify__close-button:hover{opacity:1}@keyframes Toastify__trackProgress{0%{transform:scaleX(1)}to{transform:scaleX(0)}}.Toastify__progress-bar{bottom:0;height:100%;left:0;opacity:.7;position:absolute;transform-origin:left;width:100%;z-index:1}.Toastify__progress-bar--animated{animation:Toastify__trackProgress linear 1 forwards}.Toastify__progress-bar--controlled{transition:transform .2s}.Toastify__progress-bar--rtl{border-bottom-left-radius:0;left:auto;right:0;transform-origin:right}.Toastify__progress-bar--wrp{border-bottom-left-radius:6px;border-bottom-left-radius:var(--toastify-toast-bd-radius);border-bottom-right-radius:6px;border-bottom-right-radius:var(--toastify-toast-bd-radius);bottom:0;height:5px;left:0;overflow:hidden;position:absolute;width:100%}.Toastify__progress-bar--wrp[data-hidden=true]{opacity:0}.Toastify__progress-bar--bg{height:100%;opacity:.2;opacity:var(--toastify-color-progress-bgo);width:100%}.Toastify__spinner{animation:Toastify__spin .65s linear infinite;border:2px solid #e0e0e0;border-color:var(--toastify-spinner-color-empty-area);border-radius:100%;border-right-color:#616161;border-right-color:var(--toastify-spinner-color);box-sizing:border-box;height:20px;width:20px}@keyframes Toastify__bounceInRight{0%,60%,75%,90%,to{animation-timing-function:cubic-bezier(.215,.61,.355,1)}0%{opacity:0;transform:translate3d(3000px,0,0)}60%{opacity:1;transform:translate3d(-25px,0,0)}75%{transform:translate3d(10px,0,0)}90%{transform:translate3d(-5px,0,0)}to{transform:none}}@keyframes Toastify__bounceOutRight{20%{opacity:1;transform:translate3d(-20px,var(--y),0)}to{opacity:0;transform:translate3d(2000px,var(--y),0)}}@keyframes Toastify__bounceInLeft{0%,60%,75%,90%,to{animation-timing-function:cubic-bezier(.215,.61,.355,1)}0%{opacity:0;transform:translate3d(-3000px,0,0)}60%{opacity:1;transform:translate3d(25px,0,0)}75%{transform:translate3d(-10px,0,0)}90%{transform:translate3d(5px,0,0)}to{transform:none}}@keyframes Toastify__bounceOutLeft{20%{opacity:1;transform:translate3d(20px,var(--y),0)}to{opacity:0;transform:translate3d(-2000px,var(--y),0)}}@keyframes Toastify__bounceInUp{0%,60%,75%,90%,to{animation-timing-function:cubic-bezier(.215,.61,.355,1)}0%{opacity:0;transform:translate3d(0,3000px,0)}60%{opacity:1;transform:translate3d(0,-20px,0)}75%{transform:translate3d(0,10px,0)}90%{transform:translate3d(0,-5px,0)}to{transform:translateZ(0)}}@keyframes Toastify__bounceOutUp{20%{transform:translate3d(0,calc(var(--y) - 10px),0)}40%,45%{opacity:1;transform:translate3d(0,calc(var(--y) + 20px),0)}to{opacity:0;transform:translate3d(0,-2000px,0)}}@keyframes Toastify__bounceInDown{0%,60%,75%,90%,to{animation-timing-function:cubic-bezier(.215,.61,.355,1)}0%{opacity:0;transform:translate3d(0,-3000px,0)}60%{opacity:1;transform:translate3d(0,25px,0)}75%{transform:translate3d(0,-10px,0)}90%{transform:translate3d(0,5px,0)}to{transform:none}}@keyframes Toastify__bounceOutDown{20%{transform:translate3d(0,calc(var(--y) - 10px),0)}40%,45%{opacity:1;transform:translate3d(0,calc(var(--y) + 20px),0)}to{opacity:0;transform:translate3d(0,2000px,0)}}.Toastify__bounce-enter--bottom-left,.Toastify__bounce-enter--top-left{animation-name:Toastify__bounceInLeft}.Toastify__bounce-enter--bottom-right,.Toastify__bounce-enter--top-right{animation-name:Toastify__bounceInRight}.Toastify__bounce-enter--top-center{animation-name:Toastify__bounceInDown}.Toastify__bounce-enter--bottom-center{animation-name:Toastify__bounceInUp}.Toastify__bounce-exit--bottom-left,.Toastify__bounce-exit--top-left{animation-name:Toastify__bounceOutLeft}.Toastify__bounce-exit--bottom-right,.Toastify__bounce-exit--top-right{animation-name:Toastify__bounceOutRight}.Toastify__bounce-exit--top-center{animation-name:Toastify__bounceOutUp}.Toastify__bounce-exit--bottom-center{animation-name:Toastify__bounceOutDown}@keyframes Toastify__zoomIn{0%{opacity:0;transform:scale3d(.3,.3,.3)}50%{opacity:1}}@keyframes Toastify__zoomOut{0%{opacity:1}50%{opacity:0;transform:translate3d(0,var(--y),0) scale3d(.3,.3,.3)}to{opacity:0}}.Toastify__zoom-enter{animation-name:Toastify__zoomIn}.Toastify__zoom-exit{animation-name:Toastify__zoomOut}@keyframes Toastify__flipIn{0%{animation-timing-function:ease-in;opacity:0;transform:perspective(400px) rotateX(90deg)}40%{animation-timing-function:ease-in;transform:perspective(400px) rotateX(-20deg)}60%{opacity:1;transform:perspective(400px) rotateX(10deg)}80%{transform:perspective(400px) rotateX(-5deg)}to{transform:perspective(400px)}}@keyframes Toastify__flipOut{0%{transform:translate3d(0,var(--y),0) perspective(400px)}30%{opacity:1;transform:translate3d(0,var(--y),0) perspective(400px) rotateX(-20deg)}to{opacity:0;transform:translate3d(0,var(--y),0) perspective(400px) rotateX(90deg)}}.Toastify__flip-enter{animation-name:Toastify__flipIn}.Toastify__flip-exit{animation-name:Toastify__flipOut}@keyframes Toastify__slideInRight{0%{transform:translate3d(110%,0,0);visibility:visible}to{transform:translate3d(0,var(--y),0)}}@keyframes Toastify__slideInLeft{0%{transform:translate3d(-110%,0,0);visibility:visible}to{transform:translate3d(0,var(--y),0)}}@keyframes Toastify__slideInUp{0%{transform:translate3d(0,110%,0);visibility:visible}to{transform:translate3d(0,var(--y),0)}}@keyframes Toastify__slideInDown{0%{transform:translate3d(0,-110%,0);visibility:visible}to{transform:translate3d(0,var(--y),0)}}@keyframes Toastify__slideOutRight{0%{transform:translate3d(0,var(--y),0)}to{transform:translate3d(110%,var(--y),0);visibility:hidden}}@keyframes Toastify__slideOutLeft{0%{transform:translate3d(0,var(--y),0)}to{transform:translate3d(-110%,var(--y),0);visibility:hidden}}@keyframes Toastify__slideOutDown{0%{transform:translate3d(0,var(--y),0)}to{transform:translate3d(0,500px,0);visibility:hidden}}@keyframes Toastify__slideOutUp{0%{transform:translate3d(0,var(--y),0)}to{transform:translate3d(0,-500px,0);visibility:hidden}}.Toastify__slide-enter--bottom-left,.Toastify__slide-enter--top-left{animation-name:Toastify__slideInLeft}.Toastify__slide-enter--bottom-right,.Toastify__slide-enter--top-right{animation-name:Toastify__slideInRight}.Toastify__slide-enter--top-center{animation-name:Toastify__slideInDown}.Toastify__slide-enter--bottom-center{animation-name:Toastify__slideInUp}.Toastify__slide-exit--bottom-left,.Toastify__slide-exit--top-left{animation-duration:.3s;animation-name:Toastify__slideOutLeft;animation-timing-function:ease-in}.Toastify__slide-exit--bottom-right,.Toastify__slide-exit--top-right{animation-duration:.3s;animation-name:Toastify__slideOutRight;animation-timing-function:ease-in}.Toastify__slide-exit--top-center{animation-duration:.3s;animation-name:Toastify__slideOutUp;animation-timing-function:ease-in}.Toastify__slide-exit--bottom-center{animation-duration:.3s;animation-name:Toastify__slideOutDown;animation-timing-function:ease-in}@keyframes Toastify__spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.friends-page{min-height:100vh;padding:120px 20px 40px;position:relative}.friends-container{margin:0 auto;max-width:1200px}.friends-header{margin-bottom:40px;text-align:center}.friends-header h1{-webkit-text-fill-color:#0000;align-items:center;background:linear-gradient(135deg,#667eea,#764ba2);background-clip:text;-webkit-background-clip:text;display:flex;font-size:2.5rem;font-weight:700;gap:12px;justify-content:center;margin-bottom:10px}.friends-header p{font-size:1.1rem;opacity:.8}.friends-tabs{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-bottom:32px}.friends-tabs .tab{align-items:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffff1a;border:none;border-radius:12px;color:#fff;cursor:pointer;display:flex;font-size:1rem;font-weight:600;gap:8px;padding:12px 24px;transition:all .3s ease}.friends-tabs .tab:hover{background:#ffffff26;transform:translateY(-2px)}.friends-tabs .tab.active{background:linear-gradient(135deg,#667eea,#764ba2);box-shadow:0 8px 24px #667eea66}.friends-content{min-height:400px}.friends-grid{grid-gap:24px;display:grid;gap:24px;grid-template-columns:repeat(auto-fill,minmax(320px,1fr))}.friend-card{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffff1a;border:1px solid #fff3;border-radius:16px;padding:24px;transition:all .3s ease}.friend-card:hover{border-color:#ffffff4d;box-shadow:0 12px 32px #0000004d;transform:translateY(-4px)}.friend-header{gap:12px;margin-bottom:20px}.friend-avatar,.friend-header{align-items:center;display:flex}.friend-avatar{background:linear-gradient(135deg,#667eea,#764ba2);border-radius:50%;color:#fff;flex-shrink:0;font-size:1.5rem;font-weight:700;height:56px;justify-content:center;position:relative;width:56px}.friend-info{flex:1 1;min-width:0}.friend-info h3{font-size:1.1rem;font-weight:600;margin:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.friend-username{font-size:.9rem;opacity:.7}.btn-icon{align-items:center;background:#ffffff1a;border:none;border-radius:50%;color:#fff;cursor:pointer;display:flex;height:36px;justify-content:center;transition:all .3s ease;width:36px}.btn-icon:hover{background:#fff3;transform:scale(1.1)}.btn-icon.btn-danger:hover{background:#ef44444d}.friend-stats{grid-gap:16px;display:grid;gap:16px;grid-template-columns:repeat(3,1fr);margin-bottom:16px}.friend-stats .stat-item{align-items:center;display:flex;flex-direction:column;gap:4px;text-align:center}.friend-stats .stat-item svg{opacity:.7}.friend-stats .stat-item span{font-size:1.2rem;font-weight:700}.friend-stats .stat-item label{font-size:.8rem;opacity:.7}.friend-comparison{border-top:1px solid #ffffff1a;margin-top:16px;padding-top:16px}.comparison-bar{background:#ffffff1a;border-radius:4px;height:8px;margin-bottom:8px;overflow:hidden;width:100%}.comparison-fill{background:linear-gradient(90deg,#667eea,#764ba2);border-radius:4px;height:100%;transition:width .5s ease}.comparison-text{display:block;font-size:.85rem;opacity:.8;text-align:center}.requests-list{display:flex;flex-direction:column;gap:16px;margin:0 auto;max-width:800px}.request-card{align-items:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffff1a;border:1px solid #fff3;border-radius:16px;display:flex;gap:16px;padding:20px;transition:all .3s ease}.request-card:hover{border-color:#ffffff4d;transform:translateX(4px)}.request-avatar{align-items:center;background:linear-gradient(135deg,#f093fb,#f5576c);border-radius:50%;color:#fff;display:flex;flex-shrink:0;font-size:1.5rem;font-weight:700;height:56px;justify-content:center;width:56px}.request-info{flex:1 1;min-width:0}.request-info h3{font-size:1.1rem;font-weight:600;margin:0 0 4px}.request-username{display:block;font-size:.9rem;margin-bottom:4px;opacity:.7}.request-score{align-items:center;display:flex;font-size:.85rem;gap:4px;opacity:.8}.request-actions{display:flex;flex-shrink:0;gap:8px}.add-friend-section{margin:0 auto;max-width:800px}.search-box{margin-bottom:32px}.search-input-wrapper{align-items:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffff1a;border:1px solid #fff3;border-radius:16px;display:flex;gap:12px;padding:16px 20px}.search-input-wrapper svg{flex-shrink:0;opacity:.7}.search-input-wrapper input{background:#0000;border:none;color:#fff;flex:1 1;font-size:1rem;outline:none}.search-input-wrapper input::placeholder{color:#ffffff80}.search-results{display:flex;flex-direction:column;gap:16px}.search-result-card{align-items:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffff1a;border:1px solid #fff3;border-radius:16px;display:flex;gap:16px;padding:20px;transition:all .3s ease}.search-result-card:hover{border-color:#ffffff4d;transform:translateX(4px)}.result-avatar{align-items:center;background:linear-gradient(135deg,#4facfe,#00f2fe);border-radius:50%;color:#fff;display:flex;flex-shrink:0;font-size:1.5rem;font-weight:700;height:56px;justify-content:center;width:56px}.result-info{flex:1 1;min-width:0}.result-info h3{font-size:1.1rem;font-weight:600;margin:0 0 4px}.result-username{display:block;font-size:.9rem;margin-bottom:4px;opacity:.7}.result-stats{align-items:center;display:flex;font-size:.85rem;gap:4px;opacity:.8}.empty-state{padding:60px 20px;text-align:center}.empty-state svg{margin-bottom:20px;opacity:.3}.empty-state h3{font-size:1.5rem;font-weight:600;margin-bottom:12px}.empty-state p{margin-bottom:24px;opacity:.7}.btn{align-items:center;border:none;border-radius:12px;cursor:pointer;display:inline-flex;font-size:.95rem;font-weight:600;gap:8px;padding:10px 20px;transition:all .3s ease;white-space:nowrap}.btn-primary{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.btn-primary:hover{box-shadow:0 8px 24px #667eea66;transform:translateY(-2px)}.btn-primary:disabled{cursor:not-allowed;opacity:.5;transform:none}.btn-success{background:linear-gradient(135deg,#11998e,#38ef7d);color:#fff}.btn-success:hover{box-shadow:0 8px 24px #38ef7d66;transform:translateY(-2px)}.btn-ghost{background:#ffffff1a;color:#fff}.btn-ghost:hover{background:#fff3}@media (max-width:768px){.friends-grid{grid-template-columns:1fr}.friends-tabs{flex-direction:column}.request-card,.search-result-card{flex-direction:column;text-align:center}.request-actions{flex-direction:column;width:100%}.request-actions .btn{justify-content:center;width:100%}}.Toastify__toast{-webkit-backdrop-filter:blur(20px)!important;backdrop-filter:blur(20px)!important;background:#1e1e32f2!important;border:1px solid #ffffff1a!important;border-radius:16px!important;box-shadow:0 8px 32px #0006!important;font-family:inherit!important;font-size:.95rem!important}.Toastify__toast--success{background:linear-gradient(135deg,#11998e33,#38ef7d33),#1e1e32f2!important;border-color:#38ef7d4d!important}.Toastify__toast--error{background:linear-gradient(135deg,#ef444433,#dc262633),#1e1e32f2!important;border-color:#ef44444d!important}.Toastify__progress-bar{background:linear-gradient(90deg,#667eea,#764ba2)!important}.Toastify__toast-icon{font-size:1.5rem!important}.Toastify__close-button{color:#ffffffb3!important}.Toastify__close-button:hover{opacity:1!important}.modal-overlay{align-items:center;animation:fadeIn .3s ease;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#000000b3;bottom:0;display:flex;justify-content:center;left:0;position:fixed;right:0;top:0;z-index:9999}.modal-content{animation:slideUp .3s ease;background:#1e1e32f2;border:1px solid #ffffff1a;border-radius:20px;box-shadow:0 20px 50px #00000080;max-width:400px;padding:32px;text-align:center;width:90%}.modal-icon.warning{align-items:center;background:#ef44441a;border-radius:50%;color:#ef4444;display:flex;height:64px;justify-content:center;margin:0 auto 20px;width:64px}.modal-content h3{color:#fff;font-size:1.5rem;font-weight:700;margin-bottom:12px}.modal-content p{color:#ffffffb3;line-height:1.5;margin-bottom:24px}.modal-content strong{color:#fff}.modal-actions{display:flex;gap:12px;justify-content:center}.modal-actions .btn{flex:1 1;justify-content:center;padding:12px 20px}.btn-danger{background:linear-gradient(135deg,#ff416c,#ff4b2b);color:#fff}.btn-danger:hover{box-shadow:0 8px 24px #ff4b2b66;transform:translateY(-2px)}.status-dot{background:#ccc;border:2px solid #1e1e32f2;border-radius:50%;bottom:2px;height:14px;position:absolute;right:2px;width:14px;z-index:100}.status-dot.online{background:#0f8;box-shadow:0 0 8px #0f8}.status-dot.offline{background:#ff4757}.room-lobby{min-height:100vh;padding-top:80px;position:relative}.lobby-container{animation:slideUp .6s ease-out;margin:0 auto;max-width:600px;padding:var(--spacing-2xl) var(--spacing-lg)}.lobby-title{-webkit-text-fill-color:#0000;animation:gradientShift 3s ease infinite;background:linear-gradient(135deg,#fff 0,var(--accent-cyan) 50%,var(--accent-pink) 100%);-webkit-background-clip:text;background-clip:text;background-size:200% auto;font-size:clamp(2rem,4vw,3rem);font-weight:800;margin-bottom:var(--spacing-2xl);text-align:center}.lobby-menu-grid{grid-gap:30px;display:grid;gap:30px;grid-template-columns:1fr 1fr;margin-top:20px}.lobby-card{align-items:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffff0d;border:1px solid #ffffff1a;border-radius:24px;cursor:pointer;display:flex;flex-direction:column;overflow:hidden;padding:40px 30px;position:relative;text-align:center;transition:all .4s cubic-bezier(.175,.885,.32,1.275)}.lobby-card:hover{background:#ffffff14;border-color:#fff3;box-shadow:0 20px 40px #0000004d;transform:translateY(-10px) scale(1.02)}.card-icon-wrapper{align-items:center;background:#ffffff0d;border-radius:50%;display:flex;height:100px;justify-content:center;margin-bottom:25px;transition:transform .5s ease;width:100px}.lobby-card:hover .card-icon-wrapper{transform:scale(1.1) rotate(5deg)}.create-card .card-icon-wrapper{border:2px solid #00d4ff4d;box-shadow:0 0 20px #00d4ff1a;color:#00d4ff}.join-card .card-icon-wrapper{border:2px solid #ff00804d;box-shadow:0 0 20px #ff00801a;color:#ff0080}.lobby-card h3{color:#fff;font-size:1.8rem;font-weight:700;margin-bottom:15px}.lobby-card p{color:var(--text-secondary);font-size:1rem;line-height:1.5}.card-shine{background:linear-gradient(90deg,#fff0 0,#ffffff1a 50%,#fff0);height:100%;left:-100%;pointer-events:none;position:absolute;top:0;transform:skewX(-25deg);transition:left .5s;width:50%}.lobby-card:hover .card-shine{left:200%;transition:left .75s}.back-link{align-items:center;background:none;border:none;color:var(--text-secondary);cursor:pointer;display:flex;font-size:1rem;gap:10px;grid-column:1/-1;justify-content:center;margin-top:20px;transition:color .3s}.back-link:hover{color:#fff;text-decoration:underline}.lobby-form-container{animation:scaleIn .3s ease-out;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-xl);box-shadow:var(--glass-shadow);padding:var(--spacing-2xl)}.lobby-form-container h2{-webkit-text-fill-color:#0000;background:linear-gradient(135deg,var(--accent-cyan),var(--accent-pink));-webkit-background-clip:text;background-clip:text;font-size:1.8rem;font-weight:700;margin-bottom:var(--spacing-xl);text-align:center}.lobby-form{gap:var(--spacing-lg)}.form-group,.lobby-form{display:flex;flex-direction:column}.form-group{gap:var(--spacing-sm)}.form-group label{color:var(--text-secondary);font-size:.95rem;font-weight:500}.form-group input{background:#ffffff0d;border:1px solid var(--glass-border);border-radius:var(--radius-md);color:var(--text-primary);font-size:1.1rem;padding:var(--spacing-md) var(--spacing-lg);transition:var(--transition-normal);width:100%}.form-group input::placeholder{color:var(--text-muted)}.form-group input:focus{background:#ffffff14;border-color:var(--accent-cyan);box-shadow:0 0 0 3px #00d4ff1a}.capacity-selector{display:flex;gap:var(--spacing-md)}.capacity-btn{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-md);color:var(--text-secondary);cursor:pointer;flex:1 1;font-size:1rem;font-weight:600;padding:var(--spacing-md);transition:var(--transition-normal)}.capacity-btn:hover{background:#ffffff1a;border-color:var(--accent-cyan);color:var(--text-primary)}.capacity-btn.active{background:linear-gradient(135deg,var(--accent-cyan),var(--accent-purple));border-color:#0000;box-shadow:0 4px 15px #00d4ff4d;color:#fff}.error-message{background:#ff416c1a;border:1px solid #ff416c4d;border-radius:var(--radius-md);color:#ff6b8a;font-size:.9rem;font-weight:500;padding:var(--spacing-md);text-align:center}.form-actions{display:flex;gap:var(--spacing-md);margin-top:var(--spacing-md)}.submit-btn{background:linear-gradient(135deg,var(--accent-cyan),var(--accent-purple));border:none;border-radius:var(--radius-md);box-shadow:0 4px 15px #00d4ff4d;color:#fff;cursor:pointer;flex:2 1;font-size:1.1rem;font-weight:600;padding:var(--spacing-md) var(--spacing-lg);transition:var(--transition-normal)}.submit-btn:hover:not(:disabled){box-shadow:0 6px 25px #00d4ff80;transform:translateY(-2px)}.submit-btn:disabled{cursor:not-allowed;opacity:.5;transform:none}.cancel-btn{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-md);color:var(--text-secondary);cursor:pointer;flex:1 1;font-size:1.1rem;font-weight:600;padding:var(--spacing-md) var(--spacing-lg);transition:var(--transition-normal)}.cancel-btn:hover{background:#ffffff1a;border-color:var(--accent-pink);color:var(--text-primary)}@media (max-width:768px){.lobby-container{padding:var(--spacing-xl) var(--spacing-md)}.lobby-menu-grid{gap:20px;grid-template-columns:1fr}.lobby-title{font-size:2rem}.lobby-btn{font-size:1.1rem;padding:var(--spacing-md) var(--spacing-lg)}.lobby-form-container{padding:var(--spacing-xl)}.capacity-selector,.form-actions{flex-direction:column}.cancel-btn,.submit-btn{flex:1 1}}.room-waiting{align-items:center;display:flex;justify-content:center;min-height:100vh;padding:var(--spacing-xl);position:relative}.waiting-container{animation:scaleIn .4s ease-out;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-xl);box-shadow:var(--glass-shadow);max-width:800px;padding:var(--spacing-2xl);width:100%}.room-header{margin-bottom:var(--spacing-2xl);text-align:center}.room-name{-webkit-text-fill-color:#0000;background:linear-gradient(135deg,var(--accent-cyan),var(--accent-pink));-webkit-background-clip:text;background-clip:text;font-size:2.2rem;font-weight:800;margin-bottom:var(--spacing-lg)}.room-id-container{align-items:center;display:flex;flex-direction:column;gap:var(--spacing-sm)}.room-id-label{color:var(--text-secondary);font-size:.95rem;font-weight:500}.room-id-box{align-items:center;background:#ffffff0d;border:2px dashed var(--accent-cyan);border-radius:var(--radius-lg);cursor:pointer;display:flex;gap:var(--spacing-md);padding:var(--spacing-md) var(--spacing-xl);transition:var(--transition-normal)}.room-id-box:hover{background:#00d4ff1a;box-shadow:var(--glow-cyan);transform:scale(1.02)}.room-id-value{color:var(--accent-cyan);font-family:Courier New,monospace;font-size:2rem;font-weight:700;letter-spacing:8px;text-shadow:var(--glow-cyan)}.copy-btn{background:linear-gradient(135deg,var(--accent-cyan),var(--accent-purple));border:none;border-radius:var(--radius-sm);color:#fff;cursor:pointer;font-size:.85rem;font-weight:600;padding:var(--spacing-sm) var(--spacing-md);transition:var(--transition-normal)}.copy-btn:hover{box-shadow:0 4px 15px #00d4ff66;transform:scale(1.05)}.players-section{margin-bottom:var(--spacing-2xl)}.players-title{color:var(--text-primary);font-size:1.5rem;font-weight:600;margin-bottom:var(--spacing-lg);text-align:center}.players-grid{grid-gap:var(--spacing-lg);display:grid;gap:var(--spacing-lg);grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}.player-card{align-items:center;animation:slideUp .3s ease-out;background:linear-gradient(135deg,var(--accent-purple),var(--accent-cyan));border-radius:var(--radius-lg);box-shadow:0 4px 20px #7b2dff4d;display:flex;gap:var(--spacing-md);padding:var(--spacing-lg);transition:var(--transition-normal)}.player-card:hover{box-shadow:0 8px 30px #7b2dff80;transform:translateY(-5px)}.player-card.empty{background:var(--glass-bg);border:2px dashed var(--glass-border);box-shadow:none;opacity:.6}.player-avatar{align-items:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fff3;border:2px solid #ffffff4d;border-radius:50%;color:#fff;display:flex;flex-shrink:0;font-size:1.5rem;font-weight:700;height:50px;justify-content:center;width:50px}.empty-avatar{background:var(--glass-bg);border-color:var(--glass-border);color:var(--text-muted)}.player-info{display:flex;flex:1 1;flex-direction:column;gap:4px}.player-name{color:#fff;font-size:1.1rem;font-weight:600}.player-card.empty .player-name{color:var(--text-muted)}.host-badge{color:var(--accent-yellow);font-size:.8rem;font-weight:600;text-shadow:0 0 10px #ffd70080}.waiting-actions{display:flex;flex-direction:column;gap:var(--spacing-md)}.start-btn{background:linear-gradient(135deg,var(--accent-green),#00c9a7);border:none;border-radius:var(--radius-lg);box-shadow:0 4px 20px #00ff884d;color:#fff;cursor:pointer;font-size:1.3rem;font-weight:700;padding:var(--spacing-lg);transition:var(--transition-normal)}.start-btn:hover:not(:disabled){box-shadow:0 8px 30px #00ff8880;transform:translateY(-3px)}.start-btn:disabled{background:var(--glass-bg);border:1px solid var(--glass-border);box-shadow:none;color:var(--text-muted);cursor:not-allowed}.waiting-message{animation:pulse 2s ease-in-out infinite;background:#ffd7001a;border:1px solid #ffd7004d;border-radius:var(--radius-lg);color:var(--accent-yellow);font-size:1.2rem;font-weight:600;padding:var(--spacing-lg);text-align:center}.leave-btn{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-lg);color:var(--text-secondary);cursor:pointer;font-size:1.1rem;font-weight:600;padding:var(--spacing-md);transition:var(--transition-normal)}.leave-btn:hover{background:#ff416c1a;border-color:#ff416c;color:#ff6b8a}.topic-selection-section{background:#ffffff08;border:1px solid var(--glass-border);border-radius:var(--radius-lg);margin-bottom:var(--spacing-2xl);padding:var(--spacing-lg)}.section-title{color:var(--text-primary);font-size:1.3rem;font-weight:600;margin-bottom:var(--spacing-lg);text-align:center}.topics-grid{display:flex;flex-wrap:wrap;gap:var(--spacing-sm);justify-content:center}.topic-chip{background:#ffffff0d;border:1px solid var(--glass-border);border-radius:999px;color:var(--text-secondary);cursor:pointer;font-size:.9rem;padding:var(--spacing-sm) var(--spacing-md);transition:all .2s ease}.topic-chip:hover{background:#ffffff1a;transform:translateY(-2px)}.topic-chip.selected{background:linear-gradient(135deg,var(--accent-purple),var(--accent-pink));border-color:#0000;box-shadow:0 4px 15px #7b2dff4d;color:#fff;font-weight:600}.topic-warning{animation:fadeIn .3s ease-out;color:var(--accent-orange);font-weight:500;margin-top:var(--spacing-md);text-align:center}@media (max-width:768px){.waiting-container{padding:var(--spacing-xl)}.room-name{font-size:1.6rem}.room-id-value{font-size:1.5rem;letter-spacing:5px}.players-grid{grid-template-columns:1fr}.start-btn{font-size:1.1rem;padding:var(--spacing-md)}}.post-card{cursor:pointer;display:block;text-decoration:none;transition:transform .3s ease,box-shadow .3s ease}.post-card:hover{border-color:var(--accent-cyan);box-shadow:0 10px 30px #0000004d;transform:translateY(-5px)}.post-category{background:#ffffff1a;border:1px solid #ffffff1a;border-radius:20px;color:var(--accent-cyan);font-size:.8rem;font-weight:600;padding:4px 10px}.user-avatar-small{background:linear-gradient(135deg,var(--accent-purple),var(--accent-pink));box-shadow:0 2px 10px #0003;color:#fff}.posts-grid{animation:slideUp .5s ease-out}.chat-window{animation:slideUp .3s ease;background:#1a1a2e;border-radius:16px;bottom:20px;box-shadow:0 10px 40px #0006;display:flex;flex-direction:column;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;height:500px;overflow:hidden;position:fixed;right:20px;width:360px;z-index:9999}.chat-window.minimized{height:60px}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.chat-header{background:#252542;border-bottom:1px solid #ffffff0d;justify-content:space-between;padding:12px 16px}.chat-header,.chat-user-info{align-items:center;display:flex}.chat-user-info{gap:10px}.chat-avatar{align-items:center;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:50%;color:#fff;display:flex;font-size:1rem;font-weight:600;height:38px;justify-content:center;position:relative;width:38px}.status-indicator{background:#6b7280;border:2px solid #252542;border-radius:50%;bottom:0;height:10px;position:absolute;right:0;width:10px}.status-indicator.online{background:#22c55e}.chat-user-details{display:flex;flex-direction:column}.chat-username{color:#fff;font-size:.95rem;font-weight:600;margin:0}.chat-status{color:#9ca3af;font-size:.75rem}.chat-actions{display:flex;gap:4px}.chat-action-btn{align-items:center;background:#0000;border:none;border-radius:8px;color:#9ca3af;cursor:pointer;display:flex;height:32px;justify-content:center;transition:all .2s;width:32px}.chat-action-btn:hover{background:#ffffff1a;color:#fff}.chat-messages{background:#16162a;display:flex;flex:1 1;flex-direction:column;gap:8px;overflow-y:auto;padding:16px}.chat-messages::-webkit-scrollbar{width:4px}.chat-messages::-webkit-scrollbar-track{background:#0000}.chat-messages::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:4px}.message-wrapper{align-items:flex-end;animation:fadeIn .2s ease;display:flex;gap:8px;max-width:85%}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.message-wrapper.sent{align-self:flex-end;flex-direction:row-reverse}.message-wrapper.received{align-self:flex-start}.message-avatar{align-items:center;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:50%;color:#fff;display:flex;flex-shrink:0;font-size:.7rem;font-weight:600;height:28px;justify-content:center;width:28px}.message-content{display:flex;flex-direction:column;gap:4px}.message-wrapper.sent .message-content{align-items:flex-end}.message-bubble{word-wrap:break-word;border-radius:16px;max-width:100%;padding:10px 14px}.message-bubble.sent{background:linear-gradient(135deg,#667eea,#764ba2);border-bottom-right-radius:4px;color:#fff}.message-bubble.received{background:#252542;border-bottom-left-radius:4px;color:#e5e7eb}.message-text{font-size:.875rem;line-height:1.4}.message-timestamp{color:#6b7280;font-size:.65rem;padding:0 4px}.message-image{border-radius:12px;cursor:pointer;max-height:200px;max-width:200px;transition:transform .2s}.message-image:hover{transform:scale(1.02)}.message-file{align-items:center;background:#ffffff1a;border-radius:8px;color:inherit;display:flex;font-size:.8rem;gap:8px;padding:8px 12px;text-decoration:none;transition:background .2s}.message-file:hover{background:#ffffff26}.audio-player{gap:8px;min-width:160px}.audio-play-btn,.audio-player{align-items:center;display:flex}.audio-play-btn{background:#fff3;border:none;border-radius:50%;color:#fff;cursor:pointer;height:32px;justify-content:center;transition:background .2s;width:32px}.audio-play-btn:hover{background:#ffffff4d}.audio-progress{background:#fff3;border-radius:2px;flex:1 1;height:4px;overflow:hidden}.audio-progress-fill{background:#fff;border-radius:2px;height:100%;transition:width .1s linear}.audio-duration{color:#ffffffb3;font-size:.7rem;min-width:32px}.chat-input-container{background:#1a1a2e;border-top:1px solid #ffffff0d;padding:12px}.chat-input-wrapper{align-items:center;background:#252542;border-radius:24px;display:flex;gap:8px;padding:6px 8px}.toolbar-btn{align-items:center;background:#0000;border:none;border-radius:50%;color:#9ca3af;cursor:pointer;display:flex;flex-shrink:0;height:34px;justify-content:center;transition:all .2s;width:34px}.toolbar-btn:hover{background:#ffffff1a;color:#fff}.toolbar-btn.active{color:#667eea}.toolbar-btn.recording{color:#ef4444}.recording-pulse{animation:pulse 1s infinite;background:#ef4444;border-radius:50%;height:10px;width:10px}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.7;transform:scale(1.2)}}.chat-input{background:#0000;border:none;color:#fff;flex:1 1;font-size:.875rem;min-width:0;outline:none;padding:8px 4px}.chat-input::placeholder{color:#6b7280}.send-btn{align-items:center;background:linear-gradient(135deg,#667eea,#764ba2);border:none;border-radius:50%;color:#fff;cursor:pointer;display:flex;flex-shrink:0;height:36px;justify-content:center;transition:all .2s;width:36px}.send-btn:hover:not(:disabled){box-shadow:0 4px 12px #667eea66;transform:scale(1.05)}.send-btn:disabled{cursor:not-allowed;opacity:.5}.emoji-picker-wrapper{animation:fadeIn .2s ease;bottom:70px;left:12px;position:absolute;z-index:10}.typing-indicator{align-items:flex-end;animation:fadeIn .2s ease;display:flex;gap:8px;padding:4px 0}.typing-avatar{background:linear-gradient(135deg,#667eea,#764ba2);border-radius:50%;color:#fff;flex-shrink:0;font-size:.7rem;font-weight:600;height:28px;justify-content:center;width:28px}.typing-avatar,.typing-bubble{align-items:center;display:flex}.typing-bubble{background:#252542;border-radius:16px;border-bottom-left-radius:4px;gap:4px;padding:12px 16px}.typing-dot{animation:typingBounce 1.4s ease-in-out infinite;background:#888;border-radius:50%;height:8px;width:8px}.typing-dot:first-child{animation-delay:0s}.typing-dot:nth-child(2){animation-delay:.2s}.typing-dot:nth-child(3){animation-delay:.4s}@keyframes typingBounce{0%,60%,to{opacity:.4;transform:translateY(0)}30%{opacity:1;transform:translateY(-4px)}}@media (max-width:480px){.chat-window{bottom:10px;height:60vh;right:10px;width:calc(100% - 20px)}}.App-logo{height:40vmin;pointer-events:none}@media (prefers-reduced-motion:no-preference){.App-logo{animation:App-logo-spin 20s linear infinite}}.App-header{align-items:center;background-color:#282c34;color:#fff;display:flex;flex-direction:column;font-size:calc(10px + 2vmin);justify-content:center;min-height:100vh}.App-link{color:#61dafb}@keyframes App-logo-spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}
/*# sourceMappingURL=main.d0711720.css.map*/