*{margin:0;padding:0;box-sizing:border-box}body{font-family:Arial,sans-serif;background:#fff;overflow:hidden}.container,body{min-height:100vh}.container{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px;perspective:2000px}.title{color:#000;font-size:3rem;margin-bottom:40px;z-index:10}@keyframes titlePulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.coin-container{position:relative;margin:60px 0}.coin,.coin-container{width:300px;height:300px}.coin{position:absolute;transform-style:preserve-3d;transition:all .6s ease;will-change:transform;-webkit-backface-visibility:hidden;backface-visibility:hidden}.coin-inner{position:relative;width:100%;height:100%;transform-style:preserve-3d}.coin-face{position:absolute;width:100%;height:100%;border-radius:50%;display:flex;align-items:center;justify-content:center;-webkit-backface-visibility:hidden;backface-visibility:hidden;border:5px solid gold;box-shadow:0 10px 30px rgba(0,0,0,.3)}.coin-front{background:linear-gradient(135deg,#f8f9fa,#e9ecef 50%,#dee2e6);transform:rotateY(0deg) translateZ(50px)}.coin-back{background:linear-gradient(135deg,#6c757d,#495057 50%,#343a40);transform:rotateY(180deg) translateZ(-50px)}.dog-image,.rushmore-image{width:100%;height:100%;object-fit:cover;border-radius:50%}.rushmore-text{font-size:2.5rem;font-weight:700;color:gold;letter-spacing:2px}.coin.flipping{animation:dramaticFlip 4s ease forwards}@keyframes dramaticFlip{0%{transform:rotateY(0deg) scale(1) translateY(0)}5%{transform:rotateY(90deg) scale(1.05) translateY(-40px)}10%{transform:rotateY(180deg) scale(1.1) translateY(-80px)}20%{transform:rotateY(1turn) scale(1.15) translateY(-150px)}30%{transform:rotateY(540deg) scale(1.3) translateY(-250px)}40%{transform:rotateY(2turn) scale(1.35) translateY(-300px)}50%{transform:rotateY(900deg) scale(1.4) translateY(-350px)}60%{transform:rotateY(3turn) scale(1.3) translateY(-300px)}70%{transform:rotateY(1260deg) scale(1.2) translateY(-250px)}80%{transform:rotateY(4turn) scale(1.1) translateY(-150px)}90%{transform:rotateY(1620deg) scale(1.05) translateY(-50px)}95%{transform:rotateY(1710deg) scale(1.02) translateY(-10px)}to{transform:rotateY(5turn) scale(1) translateY(0)}}.coin.landed{transform:rotateY(5turn) scale(1) translateY(0);animation:landingBounce .5s ease-out}@keyframes landingBounce{0%{transform:rotateY(5turn) scale(1) translateY(0)}50%{transform:rotateY(5turn) scale(1.05) translateY(-20px)}to{transform:rotateY(5turn) scale(1) translateY(0)}}.result-text{position:fixed;bottom:100px;font-size:2rem;color:#000;font-weight:700;animation:resultFadeIn 1s ease-out forwards;opacity:0}@keyframes resultFadeIn{to{opacity:1}}@keyframes resultFloat{0%,to{transform:translateY(0)}50%{transform:translateY(-15px)}}@media (max-width:768px){.title{font-size:2.5rem}.coin,.coin-container{width:200px;height:200px}.result-text,.rushmore-text{font-size:1.8rem}}