@import url(https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Inter:wght@300;400;500;600;700&family=Poppins:wght@300;400;500;600;700;800;900&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}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}@font-face{font-family:EmojiFont;src:local("Apple Color Emoji"),local("Segoe UI Emoji"),local("Segoe UI Symbol"),local("Noto Color Emoji"),local("Android Emoji"),local("EmojiSymbols")}*{box-sizing:border-box}*,body{margin:0;padding:0}body{-webkit-touch-callout:none;font-family:Inter,sans-serif;overflow-x:hidden;touch-action:manipulation;-webkit-user-select:none;user-select:none}body.light-mode,html.light-mode{background:#fefdf8}body.dark-mode,html.dark-mode{background:#0f0f23}body:before{background:radial-gradient(circle at 20% 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.logo-text{color:#1a1a1a;font-weight:600}.dark-mode .logo-text{color:#e2e8f0;font-weight:600}.logo-accent{color:#6366f1;font-weight:500;margin-left:.5rem}@keyframes gradientShift{0%,to{background-position:0 50%}50%{background-position:100% 50%}}.tagline{font-size:1.2rem;font-weight:300;letter-spacing:1px;opacity:.9}.mode-selector{display:flex;gap:1rem;justify-content:center;margin:1.5rem 0}.light-mode .mode-btn{background:#f1f5f9;border:2px solid #cbd5e1;border-radius:12px;color:#334155}.dark-mode .mode-btn,.light-mode .mode-btn{cursor:pointer;font-size:1rem;font-weight:600;letter-spacing:.5px;padding:1rem 2rem;transition:all .3s ease}.dark-mode .mode-btn{background:#1e293b;border:2px solid #475569;border-radius:12px;color:#e2e8f0}.light-mode .mode-btn:hover{background:#e2e8f0;border-color:#94a3b8;box-shadow:0 4px 12px #0000001a;transform:translateY(-2px)}.dark-mode .mode-btn:hover{background:#334155;border-color:#64748b;box-shadow:0 4px 12px 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#00c9ff66;transform:translateY(-3px)}.start-game-btn:disabled{background:#fff3;box-shadow:none;cursor:not-allowed;opacity:.5}.controls-section{display:flex;gap:1rem;justify-content:center;margin-bottom:2rem}.control-btn{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffff1a;border:2px solid #ffffff4d;border-radius:25px;color:#fff;cursor:pointer;font-size:1rem;font-weight:500;padding:.75rem 1.5rem;transition:all .3s ease}.control-btn:hover{background:#fff3;border-color:#ffffff80;transform:translateY(-2px)}.control-btn.active{background:linear-gradient(45deg,#667eea,#764ba2);border-color:#fff9;box-shadow:0 5px 15px #0003}.message-display{display:flex;justify-content:center;text-align:center;width:100%}.message-display .message{margin:0 auto;text-align:center}.light-mode .message{background:#fffc;border:1px solid #0000001a;border-radius:12px;box-shadow:0 2px 8px #0000001a;color:#1e293b}.dark-mode .message,.light-mode .message{font-size:1.2rem;font-weight:500;min-height:40px;padding:1rem}.dark-mode .message{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#1e293bcc;border:1px solid #fff3;border-radius:12px;box-shadow:0 2px 8px #0000004d;color:#e2e8f0}.light-mode .progress-section{background:#fffc;border:1px solid #0000001a;border-radius:15px;box-shadow:0 2px 8px #0000001a;color:#1e293b;margin:1rem auto;max-width:400px;padding:1rem}.dark-mode .progress-section{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#1e293bcc;border:1px solid #fff3;border-radius:15px;box-shadow:0 2px 8px #0000004d;color:#e2e8f0;margin:1rem auto;max-width:400px;padding:1rem}.progress-info{display:flex;font-size:.9rem;font-weight:600;justify-content:space-between;margin-bottom:.5rem}.progress-bar{background:#fff3;border-radius:4px;height:8px;overflow:hidden;width:100%}.progress-fill{background:linear-gradient(90deg,#00c9ff,#92fe9d);border-radius:4px;box-shadow:0 0 10px #00c9ff80;height:100%;transition:width .5s ease}@keyframes messageGlow{0%,to{box-shadow:0 0 20px #ffffff1a}50%{box-shadow:0 0 30px #ffffff4d}}.game-container{display:flex;gap:3rem;justify-content:center;margin:2rem auto;max-width:1400px;padding:0 2rem;position:relative;z-index:10}.light-mode .game-area{background:#fffc;border:2px solid #0000001a;border-radius:25px;box-shadow:0 25px 50px #00000026,inset 0 1px 0 #ffffff80}.dark-mode .game-area,.light-mode .game-area{-webkit-touch-callout:none;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);overflow:hidden;position:relative;touch-action:none;transition:width .3s ease,height .3s ease;-webkit-user-select:none;user-select:none}.dark-mode .game-area{background:#1e293bcc;border:2px solid #ffffff1a;border-radius:25px;box-shadow:0 25px 50px #0006,inset 0 1px 0 #ffffff1a}.game-area-bg{animation:areaGlow 4s ease-in-out infinite;background:radial-gradient(circle at 30% 20%,#ffffff1a 0,#0000 50%),radial-gradient(circle at 70% 80%,#ffffff1a 0,#0000 50%);bottom:0;left:0;position:absolute;right:0;top:0}@keyframes areaGlow{0%,to{opacity:.5}50%{opacity:1}}.moving-rectangle{cursor:grab;position:absolute;transition:transform .1s ease;-webkit-user-select:none;user-select:none}.moving-rectangle:hover{z-index:100}.moving-rectangle:active{cursor:grabbing}.light-mode .rectangle-content{background:linear-gradient(135deg,#ffffffe6,#f8fafccc);border:2px solid #0003;border-radius:15px;box-shadow:0 8px 25px #00000026;color:#1e293b;text-shadow:0 1px 2px #fffc}.dark-mode .rectangle-content,.light-mode .rectangle-content{align-items:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);display:flex;font-size:.9rem;font-weight:600;height:100%;justify-content:center;position:relative;width:100%;z-index:2}.dark-mode .rectangle-content{background:linear-gradient(135deg,#1e293be6,#0f172acc);border:2px solid #fff3;border-radius:15px;box-shadow:0 8px 25px #0000004d;color:#e2e8f0;text-shadow:0 2px 4px #00000080}.rectangle-glow{background:linear-gradient(45deg,#ff6b6b,#4ecdc4,#45b7d1,#f9ca24);border-radius:17px;bottom:-2px;left:-2px;opacity:0;position:absolute;right:-2px;top:-2px;transition:opacity .3s ease;z-index:1}.moving-rectangle:hover .rectangle-glow{animation:pulseGlow 1s ease-in-out infinite;opacity:.7}@keyframes pulseGlow{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}@keyframes collisionShake{0%{transform:translateX(0)}25%{transform:translateX(-5px)}50%{transform:translateX(5px)}75%{transform:translateX(-3px)}to{transform:translateX(0)}}@keyframes collisionFlash{0%{opacity:1;transform:scale(1)}50%{opacity:1;transform:scale(1.2)}to{opacity:.7;transform:scale(1)}}.drop-zone-container,.sidebar{align-items:center;display:flex;flex-direction:column}.drop-zone-container{gap:2rem}.drop-zone{height:150px;position:relative;transition:all .3s ease;width:250px}.light-mode .drop-zone-inner{background:#fff9;border:3px dashed #0003;border-radius:20px}.dark-mode .drop-zone-inner,.light-mode .drop-zone-inner{align-items:center;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);display:flex;height:100%;justify-content:center;position:relative;transition:all .3s ease;width:100%}.dark-mode .drop-zone-inner{background:#1e293b99;border:3px dashed #ffffff4d;border-radius:20px}.drop-zone:hover .drop-zone-inner{background:#fff3;border-color:#fffc;transform:scale(1.02)}.drop-zone.filled .drop-zone-inner{background:linear-gradient(135deg,#667eea4d,#764ba24d);border-color:#fff9;border-style:solid}.light-mode .drop-zone-content{color:#1e293b}.dark-mode .drop-zone-content,.light-mode .drop-zone-content{font-weight:600;position:relative;text-align:center;z-index:2}.dark-mode .drop-zone-content{color:#e2e8f0}.drop-icon{font-size:2rem;margin-bottom:.5rem;opacity:.7}.drop-icon,.drop-text{user-select:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none}.drop-text{font-size:1rem;letter-spacing:1px;opacity:.8;text-transform:uppercase}.drop-zone-glow{background:linear-gradient(45deg,#667eea,#764ba2);border-radius:25px;bottom:-5px;left:-5px;opacity:0;position:absolute;right:-5px;top:-5px;transition:opacity .3s ease;z-index:1}.drop-zone.filled .drop-zone-glow{animation:zoneGlow 2s ease-in-out infinite;opacity:.3}@keyframes zoneGlow{0%,to{transform:scale(1)}50%{transform:scale(1.02)}}.vs-indicator{animation:vsGlow 2s ease-in-out infinite;color:#fff;font-family:Orbitron,monospace;font-size:1.5rem;font-weight:900;text-shadow:0 0 20px #fffc;user-select:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none}@keyframes vsGlow{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}.welcome-screen{padding:4rem 2rem;position:relative;text-align:center;z-index:10}.welcome-content{-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:#ffffff1a;border:1px solid #fff3;border-radius:25px;margin:0 auto;max-width:600px;padding:3rem}.welcome-content h2{font-family:Orbitron,monospace;font-size:2.5rem;margin-bottom:1rem;text-shadow:0 0 20px #ffffff80}.welcome-content p{font-size:1.2rem;margin-bottom:2rem;opacity:.9}.feature-list{grid-gap:1rem;display:grid;gap:1rem;grid-template-columns:1fr 1fr}.feature{background:#ffffff1a;border-radius:10px;font-weight:500;padding:1rem;transition:all .3s ease}.feature:hover{background:#fff3;transform:translateY(-3px)}@media (max-width:1200px){.game-container{align-items:center;flex-direction:column;gap:2rem}.sidebar{margin-top:2rem}.drop-zone-container{flex-direction:row;gap:3rem}}@media (max-width:768px){.logo{font-size:2.5rem}.stats-grid{grid-template-columns:repeat(2,1fr)}.game-container{gap:1.5rem;margin:1rem;max-width:calc(100vw - 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