body,html{height:100%;margin:0;padding:0}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}@media (max-width:768px){body{-webkit-overflow-scrolling:touch;overflow-y:auto}#root{min-height:100vh}}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}:root{--bg:#0f172a;--text:#e2e8f0;--card-bg:#111827;--card-border:#374151;--muted:#93c5fd;--btn-bg:#0b1220;--btn-border:#334155;--btn-bg-hover:#0f172a;--btn-border-hover:#475569;--accent:#3b82f6;--accent2:#22d3ee;--success-bg:#064e3b;--success-border:#059669;--danger-bg:#7f1d1d;--danger-border:#ef4444;--hint-bg:#0a2320;--hint-border:#16a34a}[data-theme=light]{--bg:#f8fafc;--text:#0f172a;--card-bg:#fff;--card-border:#e5e7eb;--muted:#1f2937;--btn-bg:#fff;--btn-border:#d1d5db;--btn-bg-hover:#f3f4f6;--btn-border-hover:#9ca3af;--accent:#2563eb;--accent2:#06b6d4;--success-bg:#10b981;--success-border:#059669;--danger-bg:#f87171;--danger-border:#ef4444;--hint-bg:#d1fae5;--hint-border:#16a34a}.App{align-items:flex-start;background:#0f172a;background:var(--bg);color:#e2e8f0;color:var(--text);display:flex;justify-content:flex-start;min-height:100vh;position:relative;text-align:center}.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}.quiz{max-width:720px;padding:24px;width:100%}.progress{margin:0 0 12px}.progress-track{background:#0b1220;border:1px solid #374151;border:1px solid var(--card-border);height:10px}.progress-bar{background:linear-gradient(90deg,#3b82f6,#22d3ee);background:linear-gradient(90deg,var(--accent),var(--accent2));transition:width .3s ease}.progress-meta{color:#93c5fd;color:var(--muted);font-size:12px;margin-top:6px}.quiz-card{background:#111827;background:var(--card-bg);border:1px solid #374151;border:1px solid var(--card-border);border-radius:12px;box-shadow:0 10px 25px #00000040;padding:24px;text-align:left}.quiz h2{margin-bottom:16px}.meta{color:#93c5fd;color:var(--muted);display:flex;font-size:14px;justify-content:space-between;margin-bottom:12px}.time{color:#eab308;font-weight:600}.time.low{color:#f87171}.question{margin:0 0 16px}.options{grid-gap:10px;display:grid;gap:10px;grid-template-columns:1fr}.btn{background:#0b1220;background:var(--btn-bg);border:1px solid #334155;border:1px solid var(--btn-border);border-radius:10px;color:#e2e8f0;color:var(--text);cursor:pointer;padding:12px 16px;transition:background .15s ease,border-color .15s ease,transform .02s ease}.btn:hover:enabled{background:#0f172a;background:var(--btn-bg-hover);border-color:#475569;border-color:var(--btn-border-hover)}.btn:disabled{cursor:not-allowed;opacity:.6}.btn.option.correct{background:#064e3b;background:var(--success-bg);border-color:#059669;border-color:var(--success-border)}.btn.option.incorrect{background:#7f1d1d;background:var(--danger-bg);border-color:#ef4444;border-color:var(--danger-border)}.btn.option.correct-hint{background:#0a2320;background:var(--hint-bg);border-color:#16a34a;border-color:var(--hint-border)}.actions{display:flex;justify-content:flex-end;margin-top:16px}.btn.next{background:#0b1220;background:var(--btn-bg)}.sidebar{background:#111827;background:var(--card-bg);border-right:2px solid #374151;border-right:2px solid var(--card-border);box-shadow:4px 0 12px #0003;height:100vh;left:0;position:fixed;top:0;width:220px;z-index:200}.sidebar,.sidebar-content{display:flex;flex-direction:column}.sidebar-content{gap:16px;padding:24px}.sidebar-username{background:linear-gradient(135deg,#3b82f6,#22d3ee);border:2px solid #3b82f6;border-radius:12px;box-shadow:0 4px 12px #3b82f64d;color:#fff;font-size:1.1rem;font-weight:700;padding:16px 20px;text-align:center}.sidebar-buttons{display:flex;flex-direction:column;gap:12px}.sidebar-btn,.sidebar-leaderboard-btn{font-size:1rem;font-weight:600;padding:14px 20px;width:100%}.main-content{align-items:center;box-sizing:border-box;display:flex;justify-content:center;min-height:100vh;padding:20px;transition:margin-left .3s ease,width .3s ease;width:100%}.main-content.with-sidebar{margin-left:220px;width:calc(100% - 220px)}@media (max-width:768px){.App{margin:0;padding:0}.main-content{align-items:flex-start;margin:0!important;min-height:100vh;padding:0;width:100%!important}.main-content:has(.quiz-container){align-items:stretch;max-height:100vh;overflow:hidden}.sidebar,.toolbar-desktop{display:none}.mobile-menu-toggle{align-items:center!important;background:#111827!important;background:var(--card-bg)!important;border:1px solid #374151!important;border:1px solid var(--card-border)!important;border-radius:3px!important;box-shadow:0 2px 6px #0000004d!important;color:#e2e8f0!important;color:var(--text)!important;cursor:pointer!important;display:flex!important;font-size:1.2rem!important;justify-content:center!important;margin-right:5px!important;min-height:34px!important;min-width:34px!important;opacity:1!important;padding:6px 10px!important;position:fixed!important;right:5px!important;top:2px!important;visibility:visible!important;z-index:1001!important}.mobile-menu-overlay{background:#00000080;bottom:0;left:0;position:fixed;right:0;top:0;z-index:1002}.mobile-menu{animation:slideInRight .3s ease-out;background:#111827;background:var(--card-bg);border-left:2px solid #374151;border-left:2px solid var(--card-border);box-shadow:-4px 0 12px #0000004d;height:100vh;position:fixed;right:0;top:0;width:200px;z-index:1003}@keyframes slideInRight{0%{transform:translateX(100%)}to{transform:translateX(0)}}.mobile-menu-close{background:#0000;border:none;color:#e2e8f0;color:var(--text);cursor:pointer;font-size:1.5rem;line-height:1;padding:4px 8px;position:absolute;right:8px;top:8px}.mobile-menu-content{display:flex;flex-direction:column;gap:8px;padding:40px 16px 16px}.mobile-menu-item{background:#ffffff0d;border:1px solid #374151;border:1px solid var(--card-border);border-radius:8px;color:#e2e8f0;color:var(--text);cursor:pointer;font-size:.9rem;padding:12px 16px;text-align:left;transition:all .2s ease}.mobile-menu-item:hover:not(:disabled){background:#ffffff1a;border-color:#3b82f6;border-color:var(--accent)}.mobile-menu-item:disabled,.mobile-menu-toggle:disabled{cursor:not-allowed;opacity:.5}.mobile-menu-toggle:disabled{pointer-events:none}}@media (min-width:1024px){.mobile-menu,.mobile-menu-overlay,.mobile-menu-toggle{display:none!important}}.toolbar{justify-content:flex-end;position:fixed;right:12px;top:12px;z-index:100}.toolbar,.toolbar-left,.toolbar-right{align-items:center;display:flex;gap:12px}.leaderboard-btn{background:linear-gradient(135deg,#fbbf24,#f59e0b);border:2px solid #fbbf24;box-shadow:0 4px 12px #fbbf244d;color:#1f2937;font-size:1rem;font-weight:600;padding:10px 20px}.leaderboard-btn:hover:enabled{background:linear-gradient(135deg,#f59e0b,#d97706);border-color:#f59e0b;box-shadow:0 6px 16px #fbbf2466;transform:translateY(-2px)}.leaderboard-btn:disabled{box-shadow:none;cursor:not-allowed;opacity:.5;transform:none}.sidebar-register-btn{background:linear-gradient(135deg,#a855f7,#ec4899);border:2px solid #a855f7;box-shadow:0 4px 12px #a855f74d;color:#fff;font-size:1rem;font-weight:600;padding:14px 20px;transition:all .2s ease}.sidebar-register-btn:hover:enabled{background:linear-gradient(135deg,#9333ea,#db2777);border-color:#9333ea;box-shadow:0 6px 16px #a855f766;transform:translateY(-2px)}.sidebar-register-btn:disabled{box-shadow:none;cursor:not-allowed;opacity:.5;transform:none}.sidebar-login-btn{background:linear-gradient(135deg,#3b82f6,#22d3ee);border:2px solid #3b82f6;box-shadow:0 4px 12px #3b82f64d;color:#fff;font-size:1rem;font-weight:600;padding:14px 20px;transition:all .2s ease}.sidebar-login-btn:hover:enabled{background:linear-gradient(135deg,#2563eb,#06b6d4);border-color:#2563eb;box-shadow:0 6px 16px #3b82f666;transform:translateY(-2px)}.sidebar-login-btn:disabled{box-shadow:none;cursor:not-allowed;opacity:.5;transform:none}.sidebar-theme-btn{background:linear-gradient(135deg,#f97316,#fb923c);border:2px solid #f97316;box-shadow:0 4px 12px #f973164d;color:#fff;font-size:1rem;font-weight:600;padding:14px 20px;transition:all .2s ease}.sidebar-theme-btn:hover:enabled{background:linear-gradient(135deg,#ea580c,#f97316);border-color:#ea580c;box-shadow:0 6px 16px #f9731666;transform:translateY(-2px)}.sidebar-theme-btn:disabled{box-shadow:none;cursor:not-allowed;opacity:.5;transform:none}.sidebar-quiz-home-btn{background:linear-gradient(135deg,#10b981,#34d399);border:2px solid #10b981;box-shadow:0 4px 12px #10b9814d;color:#fff;font-size:1rem;font-weight:600;padding:14px 20px;transition:all .2s ease}.sidebar-quiz-home-btn:hover:enabled{background:linear-gradient(135deg,#059669,#10b981);border-color:#059669;box-shadow:0 6px 16px #10b98166;transform:translateY(-2px)}.sidebar-quiz-home-btn:disabled{box-shadow:none;cursor:not-allowed;opacity:.5;transform:none}.sidebar-logout-btn{background:linear-gradient(135deg,#ef4444,#f87171);border:2px solid #ef4444;box-shadow:0 4px 12px #ef44444d;color:#fff;font-size:1rem;font-weight:600;padding:14px 20px;transition:all .2s ease}.sidebar-logout-btn:hover:enabled{background:linear-gradient(135deg,#dc2626,#ef4444);border-color:#dc2626;box-shadow:0 6px 16px #ef444466;transform:translateY(-2px)}.sidebar-logout-btn:disabled{box-shadow:none;cursor:not-allowed;opacity:.5;transform:none}.user-info{align-items:center;display:flex;gap:12px}.user-name{background:#3b82f61a;border:1px solid #3b82f64d;border-radius:12px;color:#e2e8f0;color:var(--text);font-size:.9rem;font-weight:600;padding:8px 16px}.user-name-left{background:linear-gradient(135deg,#fbbf24,#f59e0b);border:2px solid #fbbf24;box-shadow:0 4px 12px #fbbf244d;color:#1f2937;font-size:1rem;font-weight:600;padding:10px 20px}.logout-btn{font-size:.9rem;padding:8px 16px}.controls{display:flex;justify-content:flex-end;margin:8px 0 16px}.select{background:#0b1220;background:var(--btn-bg);border:1px solid #334155;border:1px solid var(--btn-border);border-radius:8px;color:#e2e8f0;color:var(--text);padding:8px 12px}.sr-only{clip:rect(0,0,0,0);border:0;height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;white-space:nowrap;width:1px}.summary{font-size:18px;margin-bottom:12px}@keyframes pulseOnce{0%{transform:scale(1)}50%{transform:scale(1.03)}to{transform:scale(1)}}@keyframes shakeOnce{0%,to{transform:translateX(0)}20%{transform:translateX(-2px)}40%{transform:translateX(2px)}60%{transform:translateX(-2px)}80%{transform:translateX(2px)}}.animate-pulse{animation:pulseOnce .25s ease-in-out 1}.animate-shake{animation:shakeOnce .25s ease-in-out 1}@keyframes App-logo-spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.summary-container{align-items:center;box-sizing:border-box;display:flex;justify-content:center;margin:0 auto;max-width:700px;overflow:hidden;padding:24px;position:relative;width:100%}.summary-card{animation:slideUp .6s ease-out;background:linear-gradient(135deg,var(--card-bg) 0,#3b82f626 100%);border:2px solid var(--card-border);border-radius:32px;box-shadow:0 25px 70px #0006;padding:48px;position:relative;width:100%;z-index:1}.summary-header{margin-bottom:40px;text-align:center}.celebration-icon{animation:bounce 1s ease-in-out infinite;font-size:4rem;margin-bottom:16px}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-20px)}}.summary-title{-webkit-text-fill-color:#0000;animation:gradientShift 3s ease infinite;background:linear-gradient(135deg,#3b82f6,#22d3ee,#a855f7,#f59e0b);-webkit-background-clip:text;background-clip:text;font-size:3.5rem;font-weight:900;letter-spacing:-.02em;margin:0 0 12px}@keyframes gradientShift{0%,to{background-position:0 50%}50%{background-position:100% 50%}}.summary-subtitle{color:var(--muted);font-size:1.5rem;font-weight:600;margin:0}.score-display{flex-direction:column;margin-bottom:40px}.score-circle,.score-display{align-items:center;display:flex}.score-circle{animation:pulse 2s ease-in-out infinite;background:#ffffff0d;border:8px solid;border-radius:50%;box-shadow:0 0 40px #3b82f64d;height:200px;justify-content:center;margin-bottom:24px;width:200px}@keyframes pulse{0%,to{box-shadow:0 0 40px #3b82f64d;transform:scale(1)}50%{box-shadow:0 0 60px #3b82f680;transform:scale(1.05)}}.score-number{font-size:4rem;font-weight:900;line-height:1}.score-details{text-align:center}.score-text{color:var(--text);font-size:1.4rem;margin:0}.score-highlight{font-size:1.8rem;font-weight:800}.summary-stats{align-items:center;background:#ffffff08;border:1px solid var(--card-border);border-radius:20px;display:flex;justify-content:space-around;margin-bottom:32px;padding:24px}.stat-item{flex:1 1;text-align:center}.stat-value{font-size:2.5rem;margin-bottom:8px}.stat-label{font-size:.9rem}.stat-divider{background:var(--card-border);height:60px;width:1px}.summary-actions{align-items:center;display:flex;flex-direction:column;gap:16px;text-align:center}.restart-btn{background:linear-gradient(135deg,#3b82f6,#22d3ee);border:none;border-radius:16px;box-shadow:0 8px 24px #3b82f666;color:#fff;cursor:pointer;font-size:1.3rem;font-weight:700;letter-spacing:.5px;padding:18px 48px;text-transform:uppercase;transition:all .3s ease}.restart-btn:hover{box-shadow:0 12px 32px #3b82f680;transform:translateY(-2px)}.restart-btn:active{transform:translateY(0)}.fireworks-container{height:100%;left:0;overflow:hidden;pointer-events:none;position:absolute;top:0;width:100%;z-index:0}.firework{animation:fireworkRise linear forwards;bottom:0;height:4px;position:absolute;width:4px}@keyframes fireworkRise{0%{bottom:0;opacity:1}60%{opacity:1}65%{opacity:0}to{bottom:60%;opacity:0}}.firework-particle{background:#3b82f6;background:var(--particle-color,#3b82f6);border-radius:50%;height:8px;left:0;opacity:0;position:absolute;top:0;width:8px}.firework-particle[data-angle="0"]{animation:particleExplode0 1.5s ease-out forwards}.firework-particle[data-angle="45"]{animation:particleExplode45 1.5s ease-out forwards}.firework-particle[data-angle="90"]{animation:particleExplode90 1.5s ease-out forwards}.firework-particle[data-angle="135"]{animation:particleExplode135 1.5s ease-out forwards}.firework-particle[data-angle="180"]{animation:particleExplode180 1.5s ease-out forwards}.firework-particle[data-angle="225"]{animation:particleExplode225 1.5s ease-out forwards}.firework-particle[data-angle="270"]{animation:particleExplode270 1.5s ease-out forwards}.firework-particle[data-angle="315"]{animation:particleExplode315 1.5s ease-out forwards}.firework:nth-child(3n) .firework-particle{background:#22d3ee}.firework:nth-child(3n+1) .firework-particle{background:#a855f7}.firework:nth-child(3n+2) .firework-particle{background:#f59e0b}.firework:nth-child(5n) .firework-particle{background:#10b981}.firework:nth-child(5n+1) .firework-particle{background:#ef4444}@keyframes particleExplode0{0%{opacity:0;transform:translate(0) scale(0)}60%{opacity:0;transform:translate(0) scale(0)}65%{opacity:1;transform:translate(0) scale(1)}to{opacity:0;transform:translate(120px) scale(.5)}}@keyframes particleExplode45{0%{opacity:0;transform:translate(0) scale(0)}60%{opacity:0;transform:translate(0) scale(0)}65%{opacity:1;transform:translate(0) scale(1)}to{opacity:0;transform:translate(85px,-85px) scale(.5)}}@keyframes particleExplode90{0%{opacity:0;transform:translate(0) scale(0)}60%{opacity:0;transform:translate(0) scale(0)}65%{opacity:1;transform:translate(0) scale(1)}to{opacity:0;transform:translateY(-120px) scale(.5)}}@keyframes particleExplode135{0%{opacity:0;transform:translate(0) scale(0)}60%{opacity:0;transform:translate(0) scale(0)}65%{opacity:1;transform:translate(0) scale(1)}to{opacity:0;transform:translate(-85px,-85px) scale(.5)}}@keyframes particleExplode180{0%{opacity:0;transform:translate(0) scale(0)}60%{opacity:0;transform:translate(0) scale(0)}65%{opacity:1;transform:translate(0) scale(1)}to{opacity:0;transform:translate(-120px) scale(.5)}}@keyframes particleExplode225{0%{opacity:0;transform:translate(0) scale(0)}60%{opacity:0;transform:translate(0) scale(0)}65%{opacity:1;transform:translate(0) scale(1)}to{opacity:0;transform:translate(-85px,85px) scale(.5)}}@keyframes particleExplode270{0%{opacity:0;transform:translate(0) scale(0)}60%{opacity:0;transform:translate(0) scale(0)}65%{opacity:1;transform:translate(0) scale(1)}to{opacity:0;transform:translateY(120px) scale(.5)}}@keyframes particleExplode315{0%{opacity:0;transform:translate(0) scale(0)}60%{opacity:0;transform:translate(0) scale(0)}65%{opacity:1;transform:translate(0) scale(1)}to{opacity:0;transform:translate(85px,85px) scale(.5)}}[data-theme=light] .summary-card{background:linear-gradient(135deg,var(--card-bg) 0,#3b82f614 100%)}[data-theme=light] .summary-stats{background:#00000005}.attempt-saved{align-items:center;animation:slideDown .5s ease-out;background:#10b9811a;border:2px solid #10b981;border-radius:16px;color:#10b981;display:flex;font-size:1rem;font-weight:600;gap:12px;justify-content:center;margin-bottom:24px;padding:16px 24px}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.saved-icon{font-size:1.5rem}[data-theme=light] .score-circle{background:#00000005}@media (max-width:1024px){.summary-container{align-items:flex-start;margin:0;min-height:100vh;padding:32px 0 0}.summary-card{border-left:none;border-radius:0;border-right:none;border-top:none;box-shadow:none;margin:0;max-width:100%;padding:12px;width:100%}.summary-header{margin-bottom:12px;padding:0}.celebration-icon{font-size:2rem;margin-bottom:6px}.summary-title{font-size:1.2rem;line-height:1.2;margin:0 0 4px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.summary-subtitle{font-size:.8rem;line-height:1.2;margin:0}.score-display{margin-bottom:12px}.score-circle{border-width:4px;height:80px;margin-bottom:8px;width:80px}.score-number{font-size:1.8rem}.score-text{font-size:.85rem;margin:0}.score-highlight{font-size:1rem}.summary-stats{border-radius:8px;border-width:1px;gap:6px;margin-bottom:12px;padding:10px}.stat-item{flex:1 1}.stat-value{font-size:1.2rem;line-height:1;margin-bottom:2px}.stat-label{font-size:.65rem;line-height:1}.stat-divider{height:30px;width:1px}.attempt-saved{border-radius:6px;border-width:1px;font-size:.75rem;margin-bottom:10px;padding:8px 10px}.saved-icon{font-size:1rem}.summary-actions{gap:8px;padding:0}.restart-btn{border-radius:6px;font-size:.85rem;padding:8px 16px;width:100%}}.quiz-container{box-sizing:border-box;display:flex;flex-direction:column;gap:24px;margin:0 auto;max-width:800px;padding:24px;width:100%}.quiz-header{align-items:flex-start;display:flex;flex-wrap:wrap;gap:20px;justify-content:space-between}.quiz-title-section{flex:1 1}.quiz-main-title{-webkit-text-fill-color:#0000;background:linear-gradient(135deg,#3b82f6,#22d3ee,#a855f7);-webkit-background-clip:text;background-clip:text;font-size:2.5rem;font-weight:900;letter-spacing:-.02em;margin:0 0 8px}.quiz-welcome{color:var(--muted);font-size:1.1rem;font-weight:500;margin:0}.quiz-stats{display:flex;gap:32px}.stat-box{animation:slideIn .3s ease-out;background:linear-gradient(135deg,#3b82f61a,#22d3ee1a);border:2px solid #3b82f64d;border-radius:16px;min-width:80px;padding:12px 24px;text-align:center}.stat-value{-webkit-text-fill-color:#0000;background:linear-gradient(135deg,#3b82f6,#22d3ee);-webkit-background-clip:text;background-clip:text;font-size:3rem;font-weight:900;line-height:1;margin-bottom:4px}.stat-label{color:var(--muted);font-size:.85rem;font-weight:600;letter-spacing:.5px;text-transform:uppercase}.progress-section{background:#ffffff08;border:1px solid var(--card-border);border-radius:20px;padding:20px}.progress-header{align-items:center;display:flex;justify-content:space-between;margin-bottom:12px}.progress-label{color:var(--text);font-size:1.1rem;font-weight:600}.progress-percent{-webkit-text-fill-color:#0000;background:linear-gradient(135deg,#3b82f6,#22d3ee);-webkit-background-clip:text;background-clip:text;font-size:1.1rem;font-weight:700}.progress-track{background:var(--btn-bg);border:2px solid var(--card-border);border-radius:999px;box-shadow:inset 0 2px 4px #0000001a;height:16px;overflow:hidden;position:relative}.progress-bar{animation:progressGlow 2s ease-in-out infinite;background:linear-gradient(90deg,#3b82f6,#22d3ee,#a855f7);border-radius:999px;box-shadow:0 0 20px #3b82f680;height:100%;transition:width .4s cubic-bezier(.4,0,.2,1);width:0}@keyframes progressGlow{0%,to{box-shadow:0 0 20px #3b82f680}50%{box-shadow:0 0 30px #3b82f6cc}}.quiz-card{animation:slideUp .4s ease-out;background:linear-gradient(135deg,var(--card-bg) 0,#3b82f61a 100%);border:2px solid var(--card-border);border-radius:24px;box-shadow:0 20px 60px #0000004d;padding:20px}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.quiz-badges{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:32px}.badge{animation:badgePop .3s ease-out;border:none;border-radius:12px;box-shadow:0 4px 12px #0003;color:#fff;font-size:1rem;font-weight:700;padding:10px 20px}@keyframes badgePop{0%{opacity:0;transform:scale(.8)}50%{transform:scale(1.1)}to{opacity:1;transform:scale(1)}}.question-section{margin-bottom:12px}.question-text{color:var(--text);font-size:2rem;font-weight:700;letter-spacing:-.01em;line-height:1;margin:0}.options-section{display:flex;flex-direction:column;gap:10px;margin-bottom:32px}.option-btn{align-items:center;background:#ffffff08;border:2px solid var(--card-border);border-radius:16px;color:var(--text);cursor:pointer;display:flex;font-size:1.1rem;font-weight:500;gap:16px;overflow:hidden;padding:20px 24px;position:relative;text-align:left;transition:all .3s ease;width:100%}.option-btn:hover:not(:disabled){background:#3b82f61a;border-color:#3b82f6;box-shadow:0 4px 16px #3b82f633;transform:translateX(8px)}.option-btn:disabled{cursor:not-allowed}.option-indicator{align-items:center;background:#3b82f633;border:2px solid #3b82f64d;border-radius:12px;color:#3b82f6;display:flex;flex-shrink:0;font-size:1.1rem;font-weight:700;height:30px;justify-content:center;transition:all .3s ease;width:40px}.option-btn:hover:not(:disabled) .option-indicator{background:#3b82f64d;border-color:#3b82f6;transform:scale(1.1)}.option-text{flex:1 1;line-height:1.5}.option-check,.option-cross{animation:checkPop .3s ease-out;font-size:1.5rem;font-weight:900}.option-check{color:#10b981}.option-cross{color:#ef4444}@keyframes checkPop{0%{opacity:0;transform:scale(0)}50%{transform:scale(1.3)}to{opacity:1;transform:scale(1)}}.option-correct{background:linear-gradient(135deg,#10b98133,#05966933)!important}.option-correct,.option-correct .option-indicator{border-color:#10b981!important;color:#fff!important}.option-correct .option-indicator{background:#10b981!important}.option-incorrect{background:linear-gradient(135deg,#ef444433,#dc262633)!important;border-color:#ef4444!important;color:#fff!important}.option-incorrect .option-indicator{background:#ef4444!important;border-color:#ef4444!important;color:#fff!important}.option-selected{background:linear-gradient(135deg,#8b5cf640,#7c3aed40)!important;border:2px solid #8b5cf6!important;box-shadow:0 0 0 3px #8b5cf633!important}.option-selected .option-indicator{background:linear-gradient(135deg,#8b5cf6,#7c3aed)!important;border-color:#8b5cf6!important;color:#fff!important;font-weight:700}.option-hint{background:#10b9811a!important;border-color:#10b98180!important}.option-hint .option-indicator{background:#10b9814d!important;border-color:#10b98180!important;color:#10b981!important}.animate-success{animation:successPulse .5s ease-out}@keyframes successPulse{0%,to{transform:scale(1)}50%{box-shadow:0 0 30px #10b98180;transform:scale(1.02)}}.animate-error{animation:errorShake .5s ease-out}@keyframes errorShake{0%,to{transform:translateX(0)}10%,30%,50%,70%,90%{transform:translateX(-4px)}20%,40%,60%,80%{transform:translateX(4px)}}.quiz-actions{display:flex;justify-content:flex-end;margin-top:0}.next-btn{background:linear-gradient(135deg,#3b82f6,#22d3ee);border:none;border-radius:16px;box-shadow:0 8px 24px #3b82f666;color:#fff;cursor:pointer;font-size:1rem;font-weight:700;letter-spacing:.5px;padding:12px 24px;text-transform:uppercase;transition:all .3s ease}.next-btn:hover:not(:disabled){box-shadow:0 12px 32px #3b82f680;transform:translateY(-2px)}.next-btn:active:not(:disabled){transform:translateY(0)}.next-btn:disabled{cursor:not-allowed;opacity:.5;transform:none}.empty-card,.error-card,.loading-card{padding:60px 40px;text-align:center}.loading-spinner{animation:spin 1s linear infinite;border:4px solid var(--card-border);border-radius:50%;border-top:4px solid #3b82f6;height:60px;margin:0 auto 24px;width:60px}.quiz-title{-webkit-text-fill-color:#0000;background:linear-gradient(135deg,#3b82f6,#22d3ee);-webkit-background-clip:text;background-clip:text;font-size:2rem;font-weight:800;margin:0 0 12px}.quiz-subtitle{color:var(--muted);font-size:1.1rem;margin:0}.empty-icon,.error-icon{font-size:4rem;margin-bottom:16px}.empty-message,.error-message{color:var(--muted);font-size:1.1rem;margin:0}@media (max-width:1024px){body:has(.quiz-container){overflow:hidden!important;position:fixed;width:100%}.quiz-container{box-sizing:border-box;display:flex;flex-direction:column;gap:24px;margin:0 auto;padding:5px;width:100%}.quiz-header{align-items:flex-start;display:flex;flex-wrap:wrap;gap:5px;justify-content:space-between;margin-top:40px}.quiz-title-section{flex:1 1}.quiz-main-title{-webkit-text-fill-color:#0000;background:linear-gradient(135deg,#3b82f6,#22d3ee,#a855f7);-webkit-background-clip:text;background-clip:text;font-size:1.5rem;font-weight:900;letter-spacing:-.02em;margin:0 0 1px;text-overflow:ellipsis}.quiz-welcome{color:var(--muted);font-size:.8rem;font-weight:500;margin:0}.quiz-stats{display:flex;gap:16px}.stat-box{animation:slideIn .3s ease-out;background:linear-gradient(135deg,#3b82f61a,#22d3ee1a);border:2px solid #3b82f64d;border-radius:16px;min-width:80px;padding:0;text-align:center}.stat-value{-webkit-text-fill-color:#0000;background:linear-gradient(135deg,#3b82f6,#22d3ee);-webkit-background-clip:text;background-clip:text;font-size:2rem;font-weight:900;line-height:1;margin-bottom:4px}.stat-label{color:var(--muted);font-size:.65rem;font-weight:600;letter-spacing:.5px;text-transform:uppercase}.quiz-card-mobile-first{animation:slideUp .4s ease-out;background:linear-gradient(135deg,var(--card-bg) 0,#3b82f61a 100%);border:2px solid var(--card-border);border-radius:24px;box-shadow:0 20px 60px #0000004d;padding:20px}.quiz-badges{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:32px}.badge{animation:badgePop .3s ease-out;border:none;border-radius:12px;box-shadow:0 4px 12px #0003;color:#fff;font-size:1rem;font-weight:700;padding:10px 20px}.question-section{margin-bottom:7px}.question-text{color:var(--text);font-size:1rem;font-weight:700;letter-spacing:-.01em;line-height:1;margin:0}.options-section{display:flex;flex-direction:column;gap:5px;margin-bottom:12px}.option-btn{align-items:center;background:#ffffff08;border:2px solid var(--card-border);border-radius:16px;color:var(--text);cursor:pointer;display:flex;font-size:1.1rem;font-weight:500;gap:10px;overflow:hidden;padding:10px 14px;position:relative;text-align:left;transition:all .3s ease;width:100%}.option-text{word-wrap:break-word;-webkit-line-clamp:2;-webkit-box-orient:vertical;display:-webkit-box;flex:1 1;font-size:.75rem;line-height:1.2;overflow:hidden;text-overflow:ellipsis}.note-text{color:var(--muted);font-size:.55rem;font-weight:500;margin-top:0;padding:0}.option-indicator{border-radius:3px;border-width:1px;flex-shrink:0;font-size:.65rem;height:20px;width:20px}.option-check,.option-cross{flex-shrink:0;font-size:.8rem}.quiz-actions{flex-grow:0;flex-shrink:0;height:14px;margin-top:0;max-height:24px;padding:0;z-index:100}.next-btn,.quiz-actions{min-height:24px;position:relative}.next-btn{border-radius:3px;cursor:pointer;font-size:1rem;height:50px;margin-right:5px;max-height:30px;padding:5px;pointer-events:auto;width:60%;z-index:101}.next-btn:disabled{pointer-events:none}.progress-section-mobile-last{background:#ffffff08;border:1px solid var(--card-border);border-radius:20px;padding:20px}.progress-header{margin-bottom:2px}.progress-label,.progress-percent{font-size:.6rem}.progress-track{border-width:1px;height:2px}}[data-theme=light] .quiz-card{background:linear-gradient(135deg,var(--card-bg) 0,#3b82f60d 100%)}[data-theme=light] .stat-box{background:linear-gradient(135deg,#3b82f60d,#22d3ee0d)}[data-theme=light] .option-btn,[data-theme=light] .progress-section{background:#00000005}[data-theme=light] .option-btn:hover:not(:disabled){background:#3b82f614}.settings-container{align-items:center;box-sizing:border-box;display:flex;justify-content:center;margin:0 auto;max-width:600px;padding:24px;width:100%}.settings-card{animation:slideIn .5s ease-out;background:linear-gradient(135deg,var(--card-bg) 0,#3b82f61a 100%);border:2px solid var(--card-border);border-radius:24px;box-shadow:0 20px 60px #0000004d;padding:40px;width:100%}.settings-header{margin-bottom:32px;text-align:center}.settings-title{-webkit-text-fill-color:#0000;background:linear-gradient(135deg,#3b82f6,#22d3ee,#a855f7);-webkit-background-clip:text;background-clip:text;font-size:3rem;font-weight:800;letter-spacing:-.02em;margin:0 0 8px}.settings-subtitle{color:var(--muted);font-size:1.2rem;margin:0}.settings-content{display:flex;flex-direction:column;gap:24px;margin-bottom:32px}.field-select{-webkit-appearance:none;appearance:none;background:var(--btn-bg);background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12'%3E%3Cpath fill='%23e2e8f0' d='M6 9 1 4h10z'/%3E%3C/svg%3E");background-position:right 18px center;background-repeat:no-repeat;border:2px solid var(--btn-border);border-radius:12px;box-sizing:border-box;color:var(--text);cursor:pointer;font-size:1.1rem;padding:14px 45px 14px 18px;transition:all .3s ease;width:100%}.field-select option{background-color:var(--btn-bg);color:var(--text)}.field-select:focus{border-color:var(--accent);box-shadow:0 0 0 3px #3b82f61a;outline:none}.field-error{color:#ef4444;font-size:.9rem;padding:8px}.difficulty-options{display:flex;flex-wrap:wrap;gap:12px}.difficulty-select-mobile{display:none}.difficulty-option{cursor:pointer;flex:1 1;min-width:120px}.difficulty-radio{display:none}.difficulty-badge{border:2px solid;border-radius:12px;color:var(--text);display:block;font-size:1.1rem;padding:14px 20px;text-align:center;transition:all .3s ease}.difficulty-radio:checked+.difficulty-badge{box-shadow:0 4px 12px #0003;color:#fff;transform:scale(1.05)}.difficulty-badge:hover{transform:scale(1.05)}.settings-actions{text-align:center}.start-btn{background:linear-gradient(135deg,#3b82f6,#22d3ee);border:none;border-radius:16px;box-shadow:0 8px 24px #3b82f666;color:#fff;cursor:pointer;font-size:1.4rem;font-weight:700;letter-spacing:.5px;padding:18px 32px;text-transform:uppercase;transition:all .3s ease;width:100%}.start-btn:hover:not(:disabled){box-shadow:0 12px 32px #3b82f680;transform:translateY(-2px)}.start-btn:active:not(:disabled){transform:translateY(0)}.start-btn:disabled{cursor:not-allowed;opacity:.5;transform:none}.logout-btn{background:linear-gradient(135deg,#ef4444,#dc2626);border:none;border-radius:16px;box-shadow:0 4px 16px #ef44444d;color:#fff;cursor:pointer;font-size:1.1rem;font-weight:600;letter-spacing:.5px;margin-top:12px;padding:14px 32px;text-transform:uppercase;transition:all .3s ease;width:100%}.logout-btn:hover{box-shadow:0 6px 20px #ef444466;transform:translateY(-2px)}.logout-btn:active{transform:translateY(0)}.validation-message{color:#f59e0b;font-size:.9rem;font-weight:500;margin-top:12px}.account-prompt{background:#3b82f61a;border:2px solid #3b82f64d;border-radius:16px;margin-bottom:20px;padding:20px;text-align:center}.account-prompt-text{color:var(--text);font-size:1rem;line-height:1.5;margin:0 0 16px}.account-prompt-text strong{color:#3b82f6}.account-buttons{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}.login-link-btn{background:linear-gradient(135deg,#10b981,#059669);border:none;border-radius:12px;box-shadow:0 4px 12px #10b9814d;color:#fff;cursor:pointer;flex:1 1;font-size:1rem;font-weight:600;min-width:140px;padding:12px 24px;transition:all .3s ease}.login-link-btn:hover{box-shadow:0 6px 16px #10b98166;transform:translateY(-2px)}.signup-link-btn{background:linear-gradient(135deg,#10b981,#059669);border-radius:12px;box-shadow:0 4px 12px #10b9814d}.signup-link-btn,.signup-link-btn1{flex:1 1;font-size:1rem;min-width:140px;padding:12px 24px}.signup-link-btn1{background:linear-gradient(135deg,#3b82f6,#22d3ee);background:linear-gradient(135deg,#10b981,#059669);border:none;border-radius:12px;box-shadow:0 4px 12px #3b82f64d;color:#fff;cursor:pointer;font-weight:600;transition:all .3s ease}.signup-link-btn:hover{box-shadow:0 6px 16px #3b82f666;transform:translateY(-2px)}.user-display{align-items:center;background:#10b9811a;border:2px solid #10b981;border-radius:12px;display:flex;justify-content:space-between;padding:14px 18px}.user-display-name{color:var(--text);font-size:1.1rem;font-weight:600}.user-display-badge{background:#10b98133;border-radius:8px;color:#10b981;font-size:.9rem;font-weight:600;padding:6px 12px}@media (max-width:1024px){.settings-container{align-items:flex-start;margin:0;min-height:100vh;padding:22px 0 0}.settings-card{border-left:none;border-radius:0;border-right:none;border-top:none;box-shadow:none;margin:0;max-width:100%;padding:0;width:100%}.settings-header{margin-bottom:2px;padding:0}.settings-title{font-size:1.2rem;line-height:1;margin:0 0 2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.settings-subtitle{font-size:.75rem;line-height:1;margin:0}.settings-content{gap:4px;margin-bottom:8px}.field-card{border-radius:6px;margin:0;padding:6px}.field-label{font-size:.7rem;font-weight:600;margin-bottom:3px;margin-top:3px}.field-input,.field-select{border-radius:6px;border-width:1px;font-size:.85rem;height:auto;min-height:32px;padding:6px 8px}.field-select{padding-right:28px}.difficulty-options{display:flex;flex-wrap:wrap;gap:12px}.difficulty-select-mobile{display:block;font-size:.85rem;height:auto;min-height:32px;padding:6px 8px}.settings-actions{margin-top:0;padding:0}.account-prompt{border-radius:8px;border-width:1px;margin-bottom:10px;padding:10px}.account-prompt-text{font-size:.75rem;line-height:1.3;margin-bottom:8px}.account-buttons{gap:6px}.login-link-btn,.signup-link-btn{border-radius:6px;flex:1 1;font-size:.8rem;min-width:0;padding:8px 12px}.start-btn{font-size:.95rem}.logout-btn,.start-btn{border-radius:8px;padding:10px 16px;width:100%}.logout-btn{font-size:.9rem;margin-top:8px}.validation-message{font-size:.7rem;margin-top:6px}.user-display{border-radius:6px;padding:8px 10px}.user-display-name{font-size:.9rem}.user-display-badge{border-radius:4px;font-size:.7rem;padding:3px 8px}}[data-theme=light] .settings-card{background:linear-gradient(135deg,var(--card-bg) 0,#3b82f60d 100%)}[data-theme=light] .difficulty-badge{color:var(--text)}[data-theme=light] .difficulty-radio:checked+.difficulty-badge{color:#fff}.signup-container{align-items:center;display:flex;justify-content:center;max-width:600px;padding:24px;width:100%}.signup-card{animation:slideIn .5s ease-out;background:linear-gradient(135deg,var(--card-bg) 0,#3b82f61a 100%);border:2px solid var(--card-border);border-radius:24px;box-shadow:0 20px 60px #0000004d;padding:40px;width:100%}.signup-header{margin-bottom:32px;text-align:center}.signup-title{-webkit-text-fill-color:#0000;background:linear-gradient(135deg,#3b82f6,#22d3ee,#a855f7);-webkit-background-clip:text;background-clip:text;font-size:3rem;font-weight:800;letter-spacing:-.02em;margin:0 0 8px}.signup-subtitle{color:var(--muted);font-size:1.2rem;margin:0}.signup-form{display:flex;flex-direction:column;gap:24px;margin-bottom:32px}.signup-actions{text-align:center}.signup-btn{background:linear-gradient(135deg,#3b82f6,#22d3ee);border:none;border-radius:16px;box-shadow:0 8px 24px #3b82f666;color:#fff;cursor:pointer;font-size:1.4rem;font-weight:700;letter-spacing:.5px;padding:18px 32px;text-transform:uppercase;transition:all .3s ease;width:100%}.signup-btn:hover:not(:disabled){box-shadow:0 12px 32px #3b82f680;transform:translateY(-2px)}.signup-btn:active:not(:disabled){transform:translateY(0)}.signup-btn:disabled{cursor:not-allowed;opacity:.5;transform:none}.signup-divider{align-items:center;color:var(--muted);display:flex;margin:32px 0;text-align:center}.signup-divider:after,.signup-divider:before{border-bottom:1px solid var(--card-border);content:"";flex:1 1}.signup-divider span{font-weight:600;padding:0 16px}.guest-actions{text-align:center}[data-theme=light] .signup-card{background:linear-gradient(135deg,var(--card-bg) 0,#3b82f60d 100%)}[data-theme=light] .signup-divider:after,[data-theme=light] .signup-divider:before{border-bottom-color:var(--card-border)}@media (max-width:768px){.signup-container{align-items:flex-start;margin:0;min-height:100vh;padding:32px 0 0}.signup-card{border-left:none;border-radius:0;border-right:none;border-top:none;box-shadow:none;margin:0;padding:12px;width:100%}.signup-header{margin-bottom:12px;padding:0}.signup-title{font-size:1.2rem;line-height:1.2;margin:0 0 2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.signup-subtitle{font-size:.75rem;line-height:1.2;margin:0}.signup-form{gap:10px;margin-bottom:12px}.field-card{border-radius:8px;margin:0;padding:10px}.field-label{font-size:.8rem;margin-bottom:6px}.field-input{font-size:.9rem;padding:8px 10px}.error-message,.field-input{border-radius:6px;border-width:1px}.error-message{font-size:.75rem;padding:10px}.signup-actions{margin:0;padding:0}.signup-btn{border-radius:8px;font-size:.95rem;padding:10px 16px}.signup-divider{margin:12px 0}.signup-divider span{font-size:.75rem;padding:0 10px}.guest-actions{padding:0}.guest-btn{border-radius:6px;border-width:1px;font-size:.85rem;padding:8px 16px}.guest-note{font-size:.7rem;margin-top:8px}}.login-container{align-items:center;display:flex;justify-content:center;max-width:600px;padding:24px;width:100%}.login-card{animation:slideIn .5s ease-out;background:linear-gradient(135deg,var(--card-bg) 0,#3b82f61a 100%);border:2px solid var(--card-border);border-radius:24px;box-shadow:0 20px 60px #0000004d;padding:40px;width:100%}.login-header{margin-bottom:32px;text-align:center}.login-title{-webkit-text-fill-color:#0000;background:linear-gradient(135deg,#3b82f6,#22d3ee,#a855f7);-webkit-background-clip:text;background-clip:text;font-size:3rem;font-weight:800;letter-spacing:-.02em;margin:0 0 8px}.login-subtitle{color:var(--muted);font-size:1.2rem;margin:0}.login-form{display:flex;flex-direction:column;gap:24px;margin-bottom:32px}.field-card{background:#ffffff08;border:1px solid var(--card-border);border-radius:16px;padding:20px;transition:all .3s ease}.field-card:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px #3b82f61a;transform:translateY(-2px)}.field-label{display:block;font-weight:600;margin-bottom:12px}.field-input,.field-label{color:var(--text);font-size:1.1rem}.field-input{background:var(--btn-bg);border:2px solid var(--btn-border);border-radius:12px;box-sizing:border-box;padding:14px 18px;transition:all .3s ease;width:100%}.field-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #3b82f61a;outline:none}.field-input::placeholder{color:var(--muted)}.field-input:disabled{cursor:not-allowed;opacity:.6}.error-message{background:#ef44441a;border:2px solid #ef4444;border-radius:12px;color:#ef4444;font-size:1rem;font-weight:500;padding:16px}.error-message,.login-actions{text-align:center}.login-btn{background:linear-gradient(135deg,#3b82f6,#22d3ee);border:none;border-radius:16px;box-shadow:0 8px 24px #3b82f666;color:#fff;cursor:pointer;font-size:1.4rem;font-weight:700;letter-spacing:.5px;padding:18px 32px;text-transform:uppercase;transition:all .3s ease;width:100%}.login-btn:hover:not(:disabled){box-shadow:0 12px 32px #3b82f680;transform:translateY(-2px)}.login-btn:active:not(:disabled){transform:translateY(0)}.login-btn:disabled{cursor:not-allowed;opacity:.5;transform:none}.login-divider{align-items:center;color:var(--muted);display:flex;margin:32px 0;text-align:center}.login-divider:after,.login-divider:before{border-bottom:1px solid var(--card-border);content:"";flex:1 1}.login-divider span{font-weight:600;padding:0 16px}.login-footer{text-align:center}.login-footer-text{color:var(--muted);font-size:1rem;margin:0 0 16px}.signup-link-btn{background:linear-gradient(135deg,#a855f7,#ec4899);border:none;border-radius:16px;box-shadow:0 4px 16px #a855f74d;color:#fff;cursor:pointer;font-size:1.2rem;font-weight:600;margin-bottom:16px;padding:16px 32px;transition:all .3s ease;width:100%}.signup-link-btn:hover:not(:disabled){box-shadow:0 8px 24px #a855f766;transform:translateY(-2px)}.signup-link-btn:disabled{cursor:not-allowed;opacity:.5}.guest-btn{background:#ffffff0d;border:2px solid var(--card-border);border-radius:16px;color:var(--text);cursor:pointer;font-size:1.2rem;font-weight:600;margin-bottom:12px;padding:16px 32px;transition:all .3s ease;width:100%}.guest-btn:hover:not(:disabled){background:#ffffff1a;border-color:var(--accent);transform:translateY(-2px)}.guest-btn:disabled{cursor:not-allowed;opacity:.5}.guest-note{color:var(--muted);font-size:.9rem;font-style:italic;margin-top:12px}[data-theme=light] .login-card{background:linear-gradient(135deg,var(--card-bg) 0,#3b82f60d 100%)}[data-theme=light] .field-card,[data-theme=light] .guest-btn{background:#00000005}[data-theme=light] .login-divider:after,[data-theme=light] .login-divider:before{border-bottom-color:var(--card-border)}@media (max-width:768px){.login-container{align-items:flex-start;margin:0;min-height:100vh;padding:32px 0 0}.login-card{border-left:none;border-radius:0;border-right:none;border-top:none;box-shadow:none;margin:0;padding:12px;width:100%}.login-header{margin-bottom:12px;padding:0}.login-title{font-size:1.2rem;line-height:1.2;margin:0 0 2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.login-subtitle{font-size:.75rem;line-height:1.2;margin:0}.login-form{gap:10px;margin-bottom:12px}.field-card{border-radius:8px;margin:0;padding:10px}.field-label{font-size:.8rem;margin-bottom:6px}.field-input{font-size:.9rem;padding:8px 10px}.error-message,.field-input{border-radius:6px;border-width:1px}.error-message{font-size:.75rem;padding:10px}.login-actions{margin:0;padding:0}.login-btn{border-radius:8px;font-size:.95rem;padding:10px 16px}.login-divider{margin:12px 0}.login-divider span{font-size:.75rem;padding:0 10px}.login-footer{padding:0}.login-footer-text{font-size:.75rem;margin-bottom:10px}.guest-btn,.signup-link-btn{border-radius:6px;border-width:1px;font-size:.85rem;margin-bottom:10px;padding:8px 16px}.guest-note{font-size:.7rem;margin-top:8px}}.leaderboard-container{align-items:flex-start;display:flex;justify-content:center;margin:0 auto;max-width:1200px;padding:24px;width:100%}.leaderboard-card{animation:slideIn .5s ease-out;background:linear-gradient(135deg,var(--card-bg) 0,#3b82f61a 100%);border:2px solid var(--card-border);border-radius:24px;box-shadow:0 20px 60px #0000004d;padding:40px;width:100%}@keyframes slideIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.leaderboard-header{margin-bottom:32px;text-align:center}.leaderboard-title{-webkit-text-fill-color:#0000;background:linear-gradient(135deg,#fbbf24,#f59e0b,#d97706);-webkit-background-clip:text;background-clip:text;font-size:3.5rem;font-weight:800;letter-spacing:-.02em;margin:0 0 8px}.leaderboard-subtitle{color:var(--muted);font-size:1.3rem;font-weight:500;margin:0}.leaderboard-tabs{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-bottom:32px}.tab-button{background:#ffffff0d;border:2px solid var(--card-border);border-radius:12px;color:var(--text);cursor:pointer;font-size:1rem;font-weight:600;padding:12px 24px;transition:all .3s ease}[data-theme=light] .tab-button{background:#00000005;border-color:var(--card-border);color:var(--text)}.tab-button:hover{background:#ffffff1a;border-color:var(--accent);transform:translateY(-2px)}.tab-button.active{background:linear-gradient(135deg,#3b82f6,#22d3ee);border-color:#3b82f6;box-shadow:0 4px 12px #3b82f666;color:#fff}.tab-loading{color:var(--muted);font-size:.9rem;padding:12px 24px}.category-dropdown{appearance:none;-webkit-appearance:none;-moz-appearance:none;background:#ffffff0d;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12'%3E%3Cpath fill='%23e2e8f0' d='M6 9 1 4h10z'/%3E%3C/svg%3E");background-position:right 18px center;background-repeat:no-repeat;background-size:12px;border:2px solid var(--card-border);border-radius:12px;color:var(--text);cursor:pointer;font-size:1rem;font-weight:600;min-width:200px;padding:12px 45px 12px 24px;transition:all .3s ease}.category-dropdown:hover{background:#ffffff1a;border-color:var(--accent);transform:translateY(-2px)}.category-dropdown:focus{border-color:var(--accent);box-shadow:0 0 0 3px #3b82f61a;outline:none}.category-dropdown:disabled{cursor:not-allowed;opacity:.5}.category-dropdown option{background:var(--card-bg);color:var(--text);padding:8px}.leaderboard-empty,.leaderboard-error,.leaderboard-loading{color:var(--muted);font-size:1.2rem;padding:60px 20px;text-align:center}.spinner{animation:spin 1s linear infinite;border:4px solid var(--card-border);border-radius:50%;border-top-color:var(--accent);height:50px;margin:0 auto 20px;width:50px}@keyframes spin{to{transform:rotate(1turn)}}.leaderboard-error{color:#ef4444}.leaderboard-content{overflow-x:auto}.leaderboard-table{min-width:800px;width:100%}.table-header{grid-gap:16px;background:#3b82f61a;border-radius:12px;color:var(--text);display:grid;font-size:.95rem;font-weight:700;gap:16px;grid-template-columns:80px 1fr 150px 140px 120px 180px;letter-spacing:.5px;margin-bottom:12px;padding:16px 20px;text-transform:uppercase}.table-body{display:flex;flex-direction:column;gap:8px}.table-row{grid-gap:16px;align-items:center;background:#ffffff08;border:2px solid var(--card-border);border-radius:12px;display:grid;gap:16px;grid-template-columns:80px 1fr 150px 140px 120px 180px;padding:20px;transition:all .3s ease}.table-row:hover{background:#ffffff14;border-color:var(--accent);box-shadow:0 4px 12px #0003;transform:translateX(4px)}.table-row.rank-first{background:linear-gradient(135deg,#fbbf2433,#f59e0b1a);border-color:#fbbf24;box-shadow:0 8px 24px #fbbf244d}.table-row.rank-second{background:linear-gradient(135deg,#9ca3af33,#6b72801a);border-color:#9ca3af;box-shadow:0 6px 20px #9ca3af4d}.table-row.rank-third{background:linear-gradient(135deg,#b4530933,#9a34121a);border-color:#b45309;box-shadow:0 6px 20px #b453094d}.cell-rank{align-items:center;display:flex;justify-content:center}.rank-icon{color:var(--text);font-size:1.5rem;font-weight:700}.rank-first .rank-icon{font-size:2rem}.rank-second .rank-icon,.rank-third .rank-icon{font-size:1.8rem}.cell-user{align-items:center;display:flex}.username{color:var(--text);font-size:1.1rem;font-weight:600}.cell-score{align-items:center;display:flex;flex-wrap:wrap;gap:4px}.score-value{color:#10b981;font-size:1.3rem;font-weight:700}.score-total{color:var(--muted);font-size:1rem}.score-percentage{color:var(--muted);font-size:.9rem;font-weight:500}.cell-category{align-items:center;display:flex}.category-badge{background:#3b82f633;border:1px solid #3b82f666;border-radius:8px;color:#3b82f6;font-size:.9rem;font-weight:600;padding:6px 12px}.cell-difficulty{align-items:center;display:flex}.difficulty-badge{border-radius:8px;color:#fff;font-size:.9rem;font-weight:600;padding:6px 12px;text-shadow:0 1px 2px #0003}.cell-date{align-items:center;display:flex}.date-text{color:var(--muted);font-size:.9rem;font-weight:500}.leaderboard-actions{margin-top:32px;text-align:center}.back-btn{background:#ffffff0d;border:2px solid var(--card-border);border-radius:12px;color:var(--text);cursor:pointer;font-size:1.1rem;font-weight:600;padding:14px 32px;transition:all .3s ease}.back-btn:hover{background:#ffffff1a;border-color:var(--accent);transform:translateY(-2px)}[data-theme=light] .leaderboard-card{background:linear-gradient(135deg,var(--card-bg) 0,#3b82f60d 100%)}[data-theme=light] .table-row{background:#00000005}[data-theme=light] .table-row:hover{background:#0000000d}[data-theme=light] .tab-button:hover{background:#0000000d;border-color:var(--accent)}[data-theme=light] .tab-button.active{background:linear-gradient(135deg,#3b82f6,#22d3ee);border-color:#3b82f6;box-shadow:0 4px 12px #3b82f666;color:#fff}[data-theme=light] .category-dropdown{background-color:#00000005;border-color:var(--card-border);color:var(--text)}[data-theme=light] .category-dropdown,[data-theme=light] .category-dropdown:hover{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12'%3E%3Cpath fill='%230f172a' d='M6 9 1 4h10z'/%3E%3C/svg%3E");background-position:right 18px center;background-repeat:no-repeat;background-size:12px}[data-theme=light] .category-dropdown:hover{background-color:#0000000d}[data-theme=light] .back-btn{background:#00000005}@media (max-width:1024px){.leaderboard-container{align-items:flex-start;margin:0;min-height:100vh;padding:32px 0 0}.leaderboard-card{border-left:none;border-radius:0;border-right:none;border-top:none;box-shadow:none;margin:0;padding:5px;width:100%}.leaderboard-header{margin-bottom:5px;padding:0}.leaderboard-title{font-size:1.5rem;line-height:1.2;margin:0 0 2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.leaderboard-subtitle{font-size:.75rem;line-height:1.2;margin:0}.leaderboard-tabs{-webkit-overflow-scrolling:touch;-ms-overflow-style:none;gap:6px;margin-bottom:20px;overflow-x:auto;padding-bottom:2px;scrollbar-width:none}.leaderboard-tabs::-webkit-scrollbar{display:none}.tab-button{flex-shrink:0;font-size:.65rem;padding:3px 6px;white-space:nowrap}.category-dropdown,.tab-button{border-radius:6px;border-width:1px}.category-dropdown{background-position:right 8px center;background-size:10px;font-size:.85rem;margin-top:5px;padding:6px 28px 6px 12px;width:40px}.tab-loading{font-size:.7rem;padding:6px 12px}.leaderboard-empty,.leaderboard-error,.leaderboard-loading{font-size:.85rem;padding:20px 12px}.spinner{border-width:2px;height:30px;margin-bottom:10px;width:30px}.leaderboard-content{-webkit-overflow-scrolling:touch;margin:0 -12px;overflow-x:auto;padding:0 12px}.leaderboard-table{min-width:auto;width:100%}.table-header,.table-row{font-size:.7rem;gap:6px;grid-template-columns:40px 1fr 100px;padding:8px}.table-header{font-size:.65rem}.table-header,.table-row{border-width:1px;padding:8px}.cell-category,.cell-date,.cell-difficulty,.header-category,.header-date,.header-difficulty{display:none!important}.rank-icon{font-size:1rem}.rank-first .rank-icon{font-size:1.2rem}.rank-second .rank-icon,.rank-third .rank-icon{font-size:1.1rem}.username{font-size:.8rem;word-break:break-word}.score-value{font-size:.85rem}.score-total{font-size:.75rem}.score-percentage{display:block;font-size:.65rem;width:100%}.category-badge,.difficulty-badge{border-radius:4px;font-size:.7rem;padding:3px 6px}.date-text{font-size:.65rem;word-break:break-word}.leaderboard-actions{margin-top:12px;padding:0}.back-btn{border-radius:6px;border-width:1px;font-size:.85rem;padding:8px 16px;width:100%}}
/*# sourceMappingURL=main.af3b98cb.css.map*/