.base-screen,.main-screen{position:absolute;top:0;left:0;width:100%;height:100%;animation:fade-in .5s forwards;opacity:0;overflow:hidden}.base-screen.gc-exit,.gc-exit.main-screen{animation:fade-out .5s}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@keyframes fade-out{0%{opacity:1}to{opacity:0}}.main-screen{display:flex;flex-direction:column;align-items:center}.main-screen .header{height:10%;width:100vw;background:#000;display:flex;flex-direction:row;align-items:center;justify-content:space-between}.main-screen .header .gc-menu{background:url(assets/images/menu.png) no-repeat 50%;width:10vw;height:10vw;margin-left:5vw}.main-screen .header .title{background:url(assets/images/label.png) no-repeat 50%;background-size:contain;width:50vw;height:100%;margin-right:5vw}.main-screen .logo{background:url(assets/images/logo.png) no-repeat 50%;background-size:contain;width:30vw;height:30vw;margin-top:3%;margin-bottom:3%}.main-screen .scroller{display:flex;flex-direction:column;align-items:center;width:100%;height:70%;max-height:70%;overflow-y:scroll}.main-screen .scroller .game-button{width:80%;height:20vw;min-height:20vw;background:#039;border-radius:10vw;border:1vw solid #fc3;margin-bottom:4vw;color:#fc3;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:8vw;text-align:center}.main-screen .scroller .game-button:active{transform:scale(.9)}