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.title{font-family:Gumdrop,cursive;font-size:min(10vw,3rem);margin:0;margin-top:2rem;display:flex;gap:.5rem;position:relative;z-index:10;transform-style:preserve-3d;opacity:0;animation:fadeIn .5s ease-out 3.5s forwards}.landing-page .title span:nth-child(1){color:#ff6b6b;text-shadow:2px 2px 0 #EE5253,4px 4px 0 #C23616}.landing-page .title span:nth-child(2){color:#4ecdc4;text-shadow:2px 2px 0 #45B7AF,4px 4px 0 #2E8B84}.landing-page .title span:nth-child(3){color:#ffd93d;text-shadow:2px 2px 0 #F6C90E,4px 4px 0 #BF9B06}.landing-page .title span:nth-child(4){color:#a8e6cf;text-shadow:2px 2px 0 #7FD1B3,4px 4px 0 #4B9B82}.landing-page .title span:nth-child(5){color:#6c5ce7;text-shadow:2px 2px 0 #5849BE,4px 4px 0 #3C2F94}.landing-page .title span:nth-child(6){color:#00b894;text-shadow:2px 2px 0 #009B7A,4px 4px 0 #006B53}.landing-page .title span{display:inline-block;transform:translateY(20px);animation:titleLetterIn .5s ease-out forwards;transform:translateZ(10px)}.landing-page .title span:nth-child(1){animation-delay:3.6s}.landing-page .title span:nth-child(2){animation-delay:3.7s}.landing-page .title span:nth-child(3){animation-delay:3.8s}.landing-page .title span:nth-child(4){animation-delay:3.9s}.landing-page .title span:nth-child(5){animation-delay:4s}.landing-page .title span:nth-child(6){animation-delay:4.1s}.landing-page .subtitle{font-family:Gumdrop,cursive;color:#81d4fa;font-size:1rem;margin-top:1rem;letter-spacing:1px;text-shadow:1px 1px 0 #29B6F6,2px 2px 0 #0288D1;opacity:0;animation:fadeInUp .5s ease-out 4.5s forwards}.landing-page .enter-prompt{font-family:Gumdrop,cursive;color:#f7c649;font-size:.9rem;margin-top:2rem;letter-spacing:1px;opacity:0;text-shadow:0 0 15px rgba(52,152,219,.3);animation:pulse 2s ease-in-out 5.5s infinite;cursor:pointer}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes titleLetterIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes fallDown{0%{opacity:0;transform:translateY(-300px) scale(.2)}70%{opacity:1;transform:translateY(0) scale(1)}85%{transform:translateY(-15px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes moveToOrbit1{0%{transform:translateY(0) scale(1)}50%{transform:rotate(20deg) translate(min(17.5vw,90px)) rotate(-20deg) scale(.9)}to{transform:rotate(40deg) translate(min(35vw,180px)) rotate(-40deg) scale(1)}}@keyframes orbit1{0%{transform:rotate(40deg) translate(min(35vw,180px)) rotate(-40deg)}to{transform:rotate(400deg) translate(min(35vw,180px)) rotate(-400deg)}}@keyframes moveToOrbit2{0%{transform:translateY(0) scale(1)}50%{transform:rotate(40deg) translate(min(17.5vw,90px)) rotate(-40deg) scale(.9)}to{transform:rotate(80deg) translate(min(35vw,180px)) rotate(-80deg) scale(1)}}@keyframes orbit2{0%{transform:rotate(80deg) translate(min(35vw,180px)) rotate(-80deg)}to{transform:rotate(440deg) translate(min(35vw,180px)) rotate(-440deg)}}@keyframes moveToOrbit3{0%{transform:translateY(0) scale(1)}50%{transform:rotate(60deg) 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pulse{0%,to{opacity:.6;transform:scale(1)}50%{opacity:1;transform:scale(1.05)}}@media (min-width: 768px){.landing-page{max-width:768px}.landing-page .title{font-size:min(10vw,4rem)}.landing-page .subtitle{font-size:1.5rem;letter-spacing:1px;margin-top:1rem;margin-bottom:1rem}.landing-page .enter-prompt{font-size:1.5rem;cursor:pointer}.landing-page .bead-container{width:min(90vw,400px);height:min(90vw,400px)}.landing-page .bead-container .bead{width:min(10vw,65px);height:min(10vw,65px)}.landing-page .bead-container .bead:after{width:min(3.5vw,18px);height:min(3.5vw,18px);top:min(1.8vw,10px);left:min(1.8vw,10px);filter:blur(min(.3vw,1.5px));box-shadow:0 0 min(2.5vw,12px) #ffffffb3}@keyframes moveToOrbit1{0%{transform:translateY(0) scale(1)}50%{transform:rotate(20deg) translate(min(22vw,120px)) rotate(-20deg) scale(.9)}to{transform:rotate(40deg) translate(min(45vw,250px)) rotate(-40deg) scale(1)}}@keyframes orbit1{0%{transform:rotate(40deg) translate(min(45vw,250px)) rotate(-40deg)}to{transform:rotate(400deg) translate(min(45vw,250px)) rotate(-400deg)}}@keyframes moveToOrbit2{0%{transform:translateY(0) scale(1)}50%{transform:rotate(40deg) translate(min(22vw,120px)) rotate(-40deg) scale(.9)}to{transform:rotate(80deg) translate(min(45vw,250px)) rotate(-80deg) scale(1)}}@keyframes orbit2{0%{transform:rotate(80deg) translate(min(45vw,250px)) rotate(-80deg)}to{transform:rotate(440deg) translate(min(45vw,250px)) rotate(-440deg)}}@keyframes moveToOrbit3{0%{transform:translateY(0) scale(1)}50%{transform:rotate(60deg) translate(min(22vw,120px)) rotate(-60deg) scale(.9)}to{transform:rotate(120deg) translate(min(45vw,250px)) rotate(-120deg) scale(1)}}@keyframes orbit3{0%{transform:rotate(120deg) translate(min(45vw,250px)) rotate(-120deg)}to{transform:rotate(480deg) translate(min(45vw,250px)) rotate(-480deg)}}@keyframes moveToOrbit4{0%{transform:translateY(0) scale(1)}50%{transform:rotate(80deg) translate(min(22vw,120px)) rotate(-80deg) scale(.9)}to{transform:rotate(160deg) translate(min(45vw,250px)) rotate(-160deg) scale(1)}}@keyframes orbit4{0%{transform:rotate(160deg) translate(min(45vw,250px)) rotate(-160deg)}to{transform:rotate(520deg) translate(min(45vw,250px)) rotate(-520deg)}}@keyframes moveToOrbit5{0%{transform:translateY(0) scale(1)}50%{transform:rotate(100deg) translate(min(22vw,120px)) rotate(-100deg) scale(.9)}to{transform:rotate(200deg) translate(min(45vw,250px)) rotate(-200deg) scale(1)}}@keyframes orbit5{0%{transform:rotate(200deg) translate(min(45vw,250px)) rotate(-200deg)}to{transform:rotate(560deg) translate(min(45vw,250px)) rotate(-560deg)}}@keyframes moveToOrbit6{0%{transform:translateY(0) scale(1)}50%{transform:rotate(120deg) translate(min(22vw,120px)) rotate(-120deg) scale(.9)}to{transform:rotate(240deg) translate(min(45vw,250px)) rotate(-240deg) scale(1)}}@keyframes orbit6{0%{transform:rotate(240deg) translate(min(45vw,250px)) rotate(-240deg)}to{transform:rotate(600deg) translate(min(45vw,250px)) rotate(-600deg)}}@keyframes moveToOrbit7{0%{transform:translateY(0) scale(1)}50%{transform:rotate(140deg) translate(min(22vw,120px)) rotate(-140deg) scale(.9)}to{transform:rotate(280deg) translate(min(45vw,250px)) rotate(-280deg) scale(1)}}@keyframes orbit7{0%{transform:rotate(280deg) translate(min(45vw,250px)) rotate(-280deg)}to{transform:rotate(640deg) translate(min(45vw,250px)) rotate(-640deg)}}@keyframes moveToOrbit8{0%{transform:translateY(0) scale(1)}50%{transform:rotate(160deg) translate(min(22vw,120px)) rotate(-160deg) scale(.9)}to{transform:rotate(320deg) translate(min(45vw,250px)) rotate(-320deg) scale(1)}}@keyframes orbit8{0%{transform:rotate(320deg) translate(min(45vw,250px)) rotate(-320deg)}to{transform:rotate(680deg) translate(min(45vw,250px)) rotate(-680deg)}}@keyframes moveToOrbit9{0%{transform:translateY(0) scale(1)}50%{transform:rotate(180deg) translate(min(22vw,120px)) rotate(-180deg) scale(.9)}to{transform:rotate(360deg) translate(min(45vw,250px)) rotate(-360deg) scale(1)}}@keyframes orbit9{0%{transform:rotate(360deg) translate(min(45vw,250px)) rotate(-360deg)}to{transform:rotate(720deg) translate(min(45vw,250px)) rotate(-720deg)}}@keyframes moveToOrbit10{0%{transform:translateY(0) scale(1)}50%{transform:rotate(200deg) translate(min(22vw,120px)) rotate(-200deg) scale(.9)}to{transform:rotate(400deg) translate(min(45vw,250px)) rotate(-400deg) scale(1)}}@keyframes orbit10{0%{transform:rotate(400deg) translate(min(45vw,250px)) rotate(-400deg)}to{transform:rotate(760deg) translate(min(45vw,250px)) rotate(-760deg)}}}.learn-mode{width:100%;min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#f6f8fa,#e9ecef)}.learn-mode .page-content{width:100%;max-width:800px;min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2rem;position:relative}.learn-mode .page-content .content-card{background:#fff;border-radius:24px;padding:3rem;width:100%;max-width:600px;box-shadow:0 10px 30px #0000001a,0 1px 8px #0000000d;text-align:center;position:relative;overflow:hidden;background:linear-gradient(135deg,#fffffff2,#ffffffd9);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.2)}.learn-mode .page-content .content-card:before{content:"";position:absolute;top:0;left:0;right:0;height:6px;background:var(--page-color, #4ECDC4)}.learn-mode .page-content .content-card h1{font-size:2.5rem;color:#2c3e50;margin-bottom:2rem;background:linear-gradient(45deg,var(--page-color, #4ECDC4),rgb(45.4845814978,161.0154185022,152.8281938326));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;text-shadow:2px 2px 4px rgba(0,0,0,.1)}.learn-mode .page-content .content-card p{font-size:1.2rem;line-height:1.6;color:#4a5568;margin-bottom:1.5rem}.learn-mode .page-content .content-card .step-list{list-style:none;padding:0;text-align:left}.learn-mode .page-content .content-card .step-list li{font-size:1.1rem;color:#4a5568;padding:1rem 1.5rem;margin:.5rem 0;background:#ffffff80;border-radius:12px;box-shadow:0 2px 4px #0000000d;display:flex;align-items:center}.learn-mode .page-content .content-card .step-list li:before{content:"•";color:var(--page-color, #4ECDC4);font-size:1.5rem;margin-right:1rem}.learn-mode .navigation-buttons{display:flex;justify-content:center;gap:1rem;margin-top:2rem;margin-bottom:2rem}.learn-mode .navigation-buttons .nav-button{padding:.8rem 1.5rem;border:none;border-radius:12px;font-size:1rem;font-weight:600;cursor:pointer;background:#fff;color:#4a5568;box-shadow:0 4px 6px #0000001a,0 1px 3px #00000014;transition:all .2s ease}.learn-mode .navigation-buttons .nav-button:hover{transform:translateY(-2px);box-shadow:0 7px 14px #0000001a,0 3px 6px #00000014}.learn-mode .navigation-buttons .nav-button.next,.learn-mode .navigation-buttons .nav-button.finish{background:var(--page-color, #4ECDC4);color:#fff}.learn-mode .navigation-buttons .nav-button.prev{background:#fff;border:2px solid var(--page-color, #4ECDC4);color:var(--page-color, #4ECDC4)}.learn-mode .progress-dots{display:flex;justify-content:center;gap:.5rem;margin-top:1rem}.learn-mode .progress-dots .dot{width:10px;height:10px;border-radius:50%;background:#cbd5e0;transition:all .3s ease}.learn-mode .progress-dots .dot.active{background:var(--page-color, #4ECDC4);transform:scale(1.2)}@media (min-width: 768px){.learn-mode{max-width:768px;margin:0 auto}.learn-mode .page-content,.learn-mode .content-card,.learn-mode .navigation-buttons,.learn-mode .progress-dots{width:100%;max-width:768px}}.column:nth-child(1) .bead{--bead-color: #ff6b6b}.column:nth-child(2) .bead{--bead-color: #4ecdc4}.column:nth-child(3) .bead{--bead-color: #ffe66d}.column:nth-child(4) .bead{--bead-color: #2ecc71}.column:nth-child(5) .bead{--bead-color: #4a90e2}.abacus-demo{display:flex;flex-direction:column;align-items:center;gap:.5rem;padding:1rem}.abacus-demo .abacus-frame{background:#2a3543;padding:2.5rem;border-radius:24px;display:flex;flex-direction:row-reverse;justify-content:center;align-items:center;gap:.5rem;max-width:370px;margin:0 auto;box-shadow:0 20px 40px #0003,inset 0 2px 5px #ffffff0d;position:relative}.abacus-demo .abacus-frame:after{content:"";position:absolute;left:0;right:0;top:26%;height:6px;background:linear-gradient(to bottom,#4b5563,#1f2937 50%,#4b5563);transform:translateY(-75%);border-radius:6px;box-shadow:0 2px 4px #0000004d,inset 0 1px 2px #ffffff1a;z-index:1}.abacus-demo .abacus-frame .column-wrapper{display:flex;flex-direction:column;align-items:center;gap:1rem;width:60px}.abacus-demo .abacus-frame .column-wrapper .place-value{color:#e2e8f0;font-size:1.25rem;font-weight:600;margin-top:.75rem;padding:.4rem .8rem;background:#0003;border-radius:8px;box-shadow:inset 0 1px 3px #0000004d,0 1px 2px #ffffff1a;text-shadow:0 1px 2px rgba(0,0,0,.5);letter-spacing:.5px}.abacus-demo .abacus-frame:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(180deg,#ffffff1a,#ffffff0d);border-radius:24px;pointer-events:none;z-index:-1}.abacus-demo .abacus-frame .column{display:flex;flex-direction:column;align-items:center;gap:.5rem;position:relative}.abacus-demo .abacus-frame .column .vertical-rod{position:absolute;left:50%;transform:translate(-50%);width:4px;height:100%;background:#2d3748;border-radius:2px;z-index:0;box-shadow:-1px 0 1px #0006,1px 0 1px #ffffff1a}.abacus-demo .abacus-frame .column .top-bead-wrapper{padding:.5rem 0}.abacus-demo .abacus-frame .column .bottom-beads{display:flex;flex-direction:column;padding:.5rem 0 1rem;margin-top:-1rem}.abacus-demo .abacus-frame .column .bead{width:40px;height:40px;border-radius:50%;position:relative;cursor:pointer;z-index:3;transition:transform .3s cubic-bezier(.34,1.56,.64,1);background:radial-gradient(circle at 30% 30%,color-mix(in srgb,white 40%,var(--bead-color)) 0%,var(--bead-color) 50%,color-mix(in srgb,black 30%,var(--bead-color)) 100%);box-shadow:0 2px 4px #0003,inset 0 -2px 4px #0003,inset 0 2px 4px #ffffff4d}.abacus-demo .abacus-frame .column .bead.active{transform:translateY(8px)}.abacus-demo .abacus-frame .column .bead.inactive{transform:translateY(0)}.abacus-demo .abacus-frame .column .bead:hover{box-shadow:0 3px 6px #0000001a,inset 0 -1px 3px #00000026,inset 0 1px 3px #fff3}.abacus-demo .total-value{color:#f8fafc;font-size:1.75rem;font-weight:700;margin-top:2rem;padding:1rem 2rem;background:linear-gradient(135deg,#2d3748e6,#1a202cf2);border-radius:16px;box-shadow:0 6px 16px #00000040,0 2px 4px #00000026,inset 0 1px 1px #ffffff1a;text-shadow:0 2px 4px rgba(0,0,0,.4);letter-spacing:1px;position:relative;overflow:hidden;border:1px solid rgba(74,85,104,.4)}.abacus-demo .total-value:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(to right,transparent,rgba(255,255,255,.3),transparent)}.abacus-demo .total-value:after{content:"";position:absolute;bottom:0;left:10%;right:10%;height:1px;background:linear-gradient(to right,transparent,rgba(255,255,255,.1),transparent)}@media (min-width: 768px){.abacus-demo{padding:1rem;width:100%;max-width:768px}.abacus-demo .abacus-frame{margin:0;width:100%;max-width:768px!important;gap:2rem}.abacus-demo .abacus-container{width:100%!important;max-width:700px!important}.abacus-demo .bead{width:50px!important;height:50px!important}}