:root{--bg-color: #e0f7fa;--bg-gradient: linear-gradient(135deg, #e0f7fa 0%, #e6e6fa 100%);--artery-red: #ff4d6d;--vein-blue: #00b4d8;--organ-pink: #ffb3c6;--text-main: #333333;--text-muted: #666666;--glass-bg: rgba(255, 255, 255, .8);--glass-border: rgba(255, 255, 255, .9);--glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, .1);--accent-glow: 0 0 20px rgba(255, 77, 109, .4);--font-family: "Outfit", "Inter", system-ui, Avenir, Helvetica, Arial, sans-serif;--border-radius: 20px}*{box-sizing:border-box;margin:0;padding:0}body{margin:0;padding:0;display:flex;place-items:center;min-width:320px;min-height:100vh;background:var(--bg-gradient);color:var(--text-main);font-family:var(--font-family);overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{width:100%;min-height:100vh;display:flex;flex-direction:column}h1,h2,h3,h4,h5,h6{font-weight:800;letter-spacing:-.02em}a{text-decoration:none;color:inherit}button{cursor:pointer;border:none;font-family:inherit;font-weight:600;transition:all .2s cubic-bezier(.25,.46,.45,.94)}.glass-panel{background:var(--glass-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:var(--border-radius);box-shadow:var(--glass-shadow)}.btn-primary{background:linear-gradient(90deg,var(--artery-red) 0%,#ff5c8a 100%);color:#fff;padding:12px 24px;border-radius:999px;font-size:1.1rem;box-shadow:0 4px 15px 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solid rgba(0,0,0,.1)}.node-side h3{margin:0;color:var(--text-main);font-size:1.2rem;text-align:center}.vessel-connections{flex:1;display:flex;flex-direction:column;gap:3rem}.pathway{display:flex;flex-direction:column;align-items:stretch;gap:.5rem}.path-label{font-size:.9rem;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:1px;text-align:center;display:flex;justify-content:center;align-items:center;gap:.5rem}.direction-arrow{font-size:1.5rem;line-height:1}.direction-arrow.red{color:#f36;animation:bounceRight .8s infinite alternate ease-in-out}.direction-arrow.blue{color:#00d2ff;animation:bounceLeft .8s infinite alternate ease-in-out}@keyframes bounceRight{0%{transform:translate(0)}to{transform:translate(8px)}}@keyframes 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#0000001a}.node-icon{width:110px;height:110px;object-fit:contain;position:relative;z-index:2}.heart-wrapper{position:relative;width:120px;height:120px;display:flex;justify-content:center;align-items:center}.pulse-animation{animation:heartPulse 1.5s infinite}.frantic-pulse{animation:heartPulse .4s infinite}@keyframes heartPulse{0%{transform:scale(1)}15%{transform:scale(1.1)}30%{transform:scale(1)}45%{transform:scale(1.1)}to{transform:scale(1)}}.leak-drop{position:absolute;width:15px;height:15px;background:#f36;border-radius:50% 0 50% 50%;transform:rotate(-45deg);z-index:1;opacity:0}.leak-1{animation:bloodLeak 1.2s linear infinite .1s;bottom:10px;right:20px}.leak-2{animation:bloodLeak 1s linear infinite .4s;bottom:20px;left:15px}@keyframes bloodLeak{0%{transform:translateY(0) rotate(-45deg) scale(.5);opacity:1}to{transform:translateY(60px) rotate(-45deg) 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#0003;transform:translateY(-50%);z-index:2;padding:0 1rem}.left-vein,.right-vein{width:150px}.pinch-segment{position:absolute;transform:translate(-50%,-50%);background:#f36;color:#fff;padding:12px 24px;border-radius:40px;font-weight:900;font-size:1.2rem;box-shadow:0 4px 15px #f366;z-index:5;pointer-events:none;transition:opacity .3s ease,transform .1s ease;text-transform:uppercase;letter-spacing:1px}.pinch-segment.shaking{animation:snipImpact .2s ease-out}@keyframes snipImpact{0%{transform:translate(-50%,-50%) scale(1.2)}50%{transform:translate(-50%,-50%) scale(.9) rotate(5deg)}to{transform:translate(-50%,-50%) scale(1)}}.status-overlay{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);padding:2rem 3rem;border-radius:20px;text-align:center;z-index:20;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 10px 30px #0000004d;animation:popIn .3s 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scale(1)}}.ch5-status-footer{width:100%;max-width:800px;margin-top:2rem;padding:1.5rem 2rem;text-align:center;font-size:1.25rem;font-weight:700;color:var(--text-main);min-height:80px;display:flex;justify-content:center;align-items:center;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 10px 40px #0000001a}.ch5-status-footer.success{background:#38b00026;border:2px solid rgba(56,176,0,.3);color:#1b4332;transform:translateY(-5px);box-shadow:0 15px 45px #38b00033}.ch5-status-footer.failed{background:#ff3b3026;border:2px solid rgba(255,59,48,.3);color:#660708}.warning-text{color:#f36;font-weight:900;font-size:.8rem;letter-spacing:2px}.blood-flow-anim{stroke-dasharray:20 60;animation:flowPath 2s linear infinite;filter:drop-shadow(0 0 5px rgba(255,255,255,.5))}.blood-flow-slow{stroke-dasharray:10 90;animation:flowPath 5s linear infinite;filter:drop-shadow(0 0 2px rgba(255,255,255,.3));opacity:.5}@keyframes flowPath{0%{stroke-dashoffset:240}to{stroke-dashoffset:0}}@media(max-width:768px){.ch5-layout{padding:4rem 1rem 1rem;gap:1rem}.tool-selector{flex-direction:column;align-items:center;gap:.5rem}.tool-btn{width:100%;max-width:300px;padding:.8rem 1.2rem!important;font-size:.9rem!important}.puzzle-container{height:250px}.pinch-segment{padding:8px 16px;font-size:.9rem}.ch5-status-footer{padding:1rem;font-size:1rem;min-height:60px;margin-top:1rem}.anatomic-label{font-size:.6rem!important;padding:1px 4px!important}}.ch6-layout{display:flex;flex-direction:column;width:100%;height:100%;position:relative}.ch6-game-content{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.5rem;padding:.5rem;height:calc(100% - 70px);margin-top:60px}.assembly-zone{width:100%;display:flex;flex-direction:column;align-items:center;gap:.5rem;padding:0;background:transparent;box-shadow:none}.word-meaning-bubble{background-color:#fff;padding:.5rem 1.5rem;border-radius:20px;font-weight:700;color:#333;font-size:1.2rem;box-shadow:0 4px 10px #0000001a;position:relative;border:3px solid #af52de}.word-slots-container{display:flex;gap:1rem;align-items:center;justify-content:center;flex-wrap:wrap}.syllable-slot{width:100px;height:100px;border-radius:15px;display:flex;align-items:center;justify-content:center;font-size:2rem;font-weight:800;transition:all .3s ease;border:3px dashed #af52de;background:#af52de1a}.syllable-slot.filled{border-style:solid;background:#fff;color:#af52de;border-color:#af52de;box-shadow:0 8px 16px #af52de4d}.syllable-slot.drag-over{background:#af52de4d;transform:scale(1.05)}.slot-hint{color:#af52de80;font-size:1.5rem}.placed-syllable{width:100%;height:100%;display:flex;align-items:center;justify-content:center}.heart-source-container{flex-grow:1;display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%;position:relative;min-height:140px}.central-heart{width:130px;height:130px;display:flex;align-items:center;justify-content:center;transition:transform .1s ease}.central-heart.pumping{animation:pump .4s ease-in-out}@keyframes pump{0%{transform:scale(1)}20%{transform:scale(1.3)}40%{transform:scale(.9)}60%{transform:scale(1.15)}80%{transform:scale(.95)}to{transform:scale(1)}}.heart-image{width:100%;height:100%;object-fit:contain;filter:drop-shadow(0 10px 20px rgba(255,59,48,.4))}.bloodstream-tray{width:100%;padding:1.5rem;background:#ff3b301a;border-radius:20px 20px 0 0;border-top:5px solid #ff3b30;position:relative;overflow:hidden}.bloodstream-tray:before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 20% 50%,rgba(255,59,48,.2) 10px,transparent 11px),radial-gradient(circle at 80% 30%,rgba(255,59,48,.15) 15px,transparent 16px),radial-gradient(circle at 50% 80%,rgba(255,59,48,.2) 8px,transparent 9px);background-size:200px 100%;animation:bloodFlow 8s linear infinite;z-index:0}@keyframes bloodFlow{0%{background-position:0 0}to{background-position:200px 0}}.syllables-container{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap;position:relative;z-index:1}.blood-cell{width:90px;height:90px;border-radius:50%;background:#fff;border:5px solid #ff3b30;color:#ff3b30;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:900;cursor:pointer;box-shadow:inset 0 -4px 10px #ff3b3033,0 5px 15px #0000001a;animation:cellBob 3s ease-in-out infinite alternate}.blood-cell:active{cursor:pointer;transform:scale(1.1)}.selected-card{transform:scale(1.15);border-color:#fc0!important;box-shadow:0 0 20px #fc0!important}.correct-choice{background:#a7c957!important;color:#fff!important;border-color:#38b000!important;transform:scale(1.15);animation:popIn .3s ease}.shake-error{animation:shake .4s cubic-bezier(.36,.07,.19,.97) both}@keyframes shake{10%,90%{transform:translate3d(-2px,0,0)}20%,80%{transform:translate3d(4px,0,0)}30%,50%,70%{transform:translate3d(-8px,0,0)}40%,60%{transform:translate3d(8px,0,0)}}@keyframes cellBob{0%{transform:translateY(0)}to{transform:translateY(-10px)}}.success-message{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;gap:2rem;text-align:center}.large-heart{width:250px}.bounce-animation{animation:bounce 2s infinite ease-in-out}@keyframes bounce{0%,to{transform:translateY(0) scale(1)}50%{transform:translateY(-30px) scale(1.05)}}.transition-overlay{position:absolute;inset:0;background:#ffffffe6;z-index:10;display:flex;flex-direction:column;align-items:center;justify-content:center;animation:fadeIn .3s ease}.transition-text{color:#af52de;font-size:2.5rem;font-weight:700;margin-bottom:2rem}.pop-in{animation:popIn .4s cubic-bezier(.175,.885,.32,1.275)}@keyframes popIn{0%{transform:scale(0);opacity:0}to{transform:scale(1);opacity:1}}