.bt-menu{position:fixed;top:0;left:0;width:100%;height:0;border:0 solid;background-color:rgba(0,0,0,0);-webkit-backface-visibility:hidden;-webkit-transition:border-width .3s,background-color .3s,height 0 .3s;transition:border-width .3s,background-color .3s,height 0 .3s;z-index:1000}.bt-menu.bt-menu-open{height:100%;background-color:rgba(0,0,0,0.3);-webkit-transition:border-width .3s,background-color .3s;transition:border-width .3s,background-color .3s}.bt-overlay{position:absolute;width:100%}.bt-menu-open .bt-overlay{height:100%}.bt-menu-trigger{position:fixed;z-index:1000;display:block;cursor:pointer}.bt-menu-trigger span{position:absolute;top:50%;left:0;display:block;width:100%;height:4px;font-size:0;-webkit-touch-callout:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;-webkit-transition:background-color .3s;transition:background-color .3s}.bt-menu-open .bt-menu-trigger span{background-color:transparent}.bt-menu-trigger span:before,.bt-menu-trigger span:after{position:absolute;left:0;width:100%;height:100%;content:'';-webkit-transition:-webkit-transform .3s;transition:transform .3s}.bt-menu-trigger span:before{-webkit-transform:translateY(-250%);transform:translateY(-250%)}.bt-menu-trigger span:after{-webkit-transform:translateY(250%);transform:translateY(250%)}.bt-menu-open .bt-menu-trigger span:before{-webkit-transform:translateY(0) rotate(45deg);transform:translateY(0) rotate(45deg)}.bt-menu-open .bt-menu-trigger span:after{-webkit-transform:translateY(0) rotate(-45deg);transform:translateY(0) rotate(-45deg)}.bt-menu ul{position:fixed;margin:0;padding:0;list-style:none}.bt-menu ul:first-of-type li,.bt-menu ul li a{display:block}.bt-menu ul:nth-of-type(2) li{display:inline-block;font-size:0}.bt-menu ul li{visibility:hidden;opacity:0;-webkit-transition:-webkit-transform .3s,opacity .2s,visibility 0 .3s;transition:transform .3s,opacity .2s,visibility 0 .3s}.bt-menu-br ul:first-of-type li:first-child,.bt-menu-bl ul:first-of-type li:first-child{-webkit-transform:translate3d(0,100%,0);transform:translate3d(0,100%,0)}.bt-menu-br ul:first-of-type li:nth-child(2),.bt-menu-bl ul:first-of-type li:nth-child(2){-webkit-transform:translate3d(0,200%,0);transform:translate3d(0,200%,0)}.bt-menu-br ul:first-of-type li:nth-child(3),.bt-menu-bl ul:first-of-type li:nth-child(3){-webkit-transform:translate3d(0,300%,0);transform:translate3d(0,300%,0)}.bt-menu-br ul:first-of-type li:nth-child(4),.bt-menu-bl ul:first-of-type li:nth-child(4){-webkit-transform:translate3d(0,400%,0);transform:translate3d(0,400%,0)}.bt-menu-br ul:first-of-type li:nth-child(5),.bt-menu-bl ul:first-of-type li:nth-child(5){-webkit-transform:translate3d(0,500%,0);transform:translate3d(0,500%,0)}.bt-menu-br ul:first-of-type li:nth-child(6),.bt-menu-bl ul:first-of-type li:nth-child(6){-webkit-transform:translate3d(0,600%,0);transform:translate3d(0,600%,0)}.bt-menu-br ul:first-of-type li:nth-child(7),.bt-menu-bl ul:first-of-type li:nth-child(7){-webkit-transform:translate3d(0,700%,0);transform:translate3d(0,700%,0)}.bt-menu-br ul:first-of-type li:nth-child(8),.bt-menu-bl ul:first-of-type li:nth-child(8){-webkit-transform:translate3d(0,800%,0);transform:translate3d(0,800%,0)}.bt-menu-br ul:first-of-type li:nth-child(9),.bt-menu-bl ul:first-of-type li:nth-child(9){-webkit-transform:translate3d(0,900%,0);transform:translate3d(0,900%,0)}.bt-menu-tr ul:first-of-type li:first-child,.bt-menu-tl ul:first-of-type li:first-child{-webkit-transform:translate3d(0,-100%,0);transform:translate3d(0,-100%,0)}.bt-menu-tr ul:first-of-type li:nth-child(2),.bt-menu-tl ul:first-of-type li:nth-child(2){-webkit-transform:translate3d(0,-200%,0);transform:translate3d(0,-200%,0)}.bt-menu-tr ul:first-of-type li:nth-child(3),.bt-menu-tl ul:first-of-type li:nth-child(3){-webkit-transform:translate3d(0,-300%,0);transform:translate3d(0,-300%,0)}.bt-menu-tr ul:first-of-type li:nth-child(4),.bt-menu-tl ul:first-of-type li:nth-child(4){-webkit-transform:translate3d(0,-400%,0);transform:translate3d(0,-400%,0)}.bt-menu-tr ul:first-of-type li:nth-child(5),.bt-menu-tl ul:first-of-type li:nth-child(5){-webkit-transform:translate3d(0,-500%,0);transform:translate3d(0,-500%,0)}.bt-menu-tr ul:first-of-type li:nth-child(6),.bt-menu-tl ul:first-of-type li:nth-child(6){-webkit-transform:translate3d(0,-600%,0);transform:translate3d(0,-600%,0)}.bt-menu-tr ul:first-of-type li:nth-child(7),.bt-menu-tl ul:first-of-type li:nth-child(7){-webkit-transform:translate3d(0,-700%,0);transform:translate3d(0,-700%,0)}.bt-menu-tr ul:first-of-type li:nth-child(8),.bt-menu-tl ul:first-of-type li:nth-child(8){-webkit-transform:translate3d(0,-800%,0);transform:translate3d(0,-800%,0)}.bt-menu-tr ul:first-of-type li:nth-child(9),.bt-menu-tl ul:first-of-type li:nth-child(9){-webkit-transform:translate3d(0,-900%,0);transform:translate3d(0,-900%,0)}.bt-menu-br ul:nth-of-type(2) li:first-child,.bt-menu-tr ul:nth-of-type(2) li:first-child{-webkit-transform:translate3d(100%,0,0);transform:translate3d(100%,0,0)}.bt-menu-br ul:nth-of-type(2) li:nth-child(2),.bt-menu-tr ul:nth-of-type(2) li:nth-child(2){-webkit-transform:translate3d(200%,0,0);transform:translate3d(200%,0,0)}.bt-menu-br ul:nth-of-type(2) li:nth-child(3),.bt-menu-tr ul:nth-of-type(2) li:nth-child(3){-webkit-transform:translate3d(300%,0,0);transform:translate3d(300%,0,0)}.bt-menu-br ul:nth-of-type(2) li:nth-child(4),.bt-menu-tr ul:nth-of-type(2) li:nth-child(4){-webkit-transform:translate3d(400%,0,0);transform:translate3d(400%,0,0)}.bt-menu-br ul:nth-of-type(2) li:nth-child(5),.bt-menu-tr ul:nth-of-type(2) li:nth-child(5){-webkit-transform:translate3d(500%,0,0);transform:translate3d(500%,0,0)}.bt-menu-br ul:nth-of-type(2) li:nth-child(6),.bt-menu-tr ul:nth-of-type(2) li:nth-child(6){-webkit-transform:translate3d(600%,0,0);transform:translate3d(600%,0,0)}.bt-menu-br ul:nth-of-type(2) li:nth-child(7),.bt-menu-tr ul:nth-of-type(2) li:nth-child(7){-webkit-transform:translate3d(700%,0,0);transform:translate3d(700%,0,0)}.bt-menu-br ul:nth-of-type(2) li:nth-child(8),.bt-menu-tr ul:nth-of-type(2) li:nth-child(8){-webkit-transform:translate3d(800%,0,0);transform:translate3d(800%,0,0)}.bt-menu-br ul:nth-of-type(2) li:nth-child(9),.bt-menu-tr ul:nth-of-type(2) li:nth-child(9){-webkit-transform:translate3d(900%,0,0);transform:translate3d(900%,0,0)}.bt-menu-bl ul:nth-of-type(2) li:first-child,.bt-menu-tl ul:nth-of-type(2) li:first-child{-webkit-transform:translate3d(-100%,0,0);transform:translate3d(-100%,0,0)}.bt-menu-bl ul:nth-of-type(2) li:nth-child(2),.bt-menu-tl ul:nth-of-type(2) li:nth-child(2){-webkit-transform:translate3d(-200%,0,0);transform:translate3d(-200%,0,0)}.bt-menu-bl ul:nth-of-type(2) li:nth-child(3),.bt-menu-tl ul:nth-of-type(2) li:nth-child(3){-webkit-transform:translate3d(-300%,0,0);transform:translate3d(-300%,0,0)}.bt-menu-bl ul:nth-of-type(2) li:nth-child(4),.bt-menu-tl ul:nth-of-type(2) li:nth-child(4){-webkit-transform:translate3d(-400%,0,0);transform:translate3d(-400%,0,0)}.bt-menu-bl ul:nth-of-type(2) li:nth-child(5),.bt-menu-tl ul:nth-of-type(2) li:nth-child(5){-webkit-transform:translate3d(-500%,0,0);transform:translate3d(-500%,0,0)}.bt-menu-bl ul:nth-of-type(2) li:nth-child(6),.bt-menu-tl ul:nth-of-type(2) li:nth-child(6){-webkit-transform:translate3d(-600%,0,0);transform:translate3d(-600%,0,0)}.bt-menu-bl ul:nth-of-type(2) li:nth-child(7),.bt-menu-tl ul:nth-of-type(2) li:nth-child(7){-webkit-transform:translate3d(-700%,0,0);transform:translate3d(-700%,0,0)}.bt-menu-bl ul:nth-of-type(2) li:nth-child(8),.bt-menu-tl ul:nth-of-type(2) li:nth-child(8){-webkit-transform:translate3d(-800%,0,0);transform:translate3d(-800%,0,0)}.bt-menu-bl ul:nth-of-type(2) li:nth-child(9),.bt-menu-tl ul:nth-of-type(2) li:nth-child(9){-webkit-transform:translate3d(-900%,0,0);transform:translate3d(-900%,0,0)}.bt-menu.bt-menu-open ul:first-of-type li,.bt-menu.bt-menu-open ul:nth-of-type(2) li{visibility:visible;opacity:1;-webkit-transition:-webkit-transform .3s,opacity .3s .1s;transition:transform .3s,opacity .3s;-webkit-transform:translate3d(0,0,0);transform:translate3d(0,0,0)}.bt-menu ul li a{display:block;outline:0;color:transparent;text-align:center;text-decoration:none;font-size:0}.bt-menu ul li a:before{-webkit-transition:opacity .2s;transition:opacity .2s}.bt-menu em{position:absolute;top:-9999px;left:-9999px;padding:4px 8px;font-style:normal;white-space:nowrap;opacity:0;transition:opacity .5s;-o-transition:opacity .5s;-moz-transition:opacity .5s;-webkit-transition:opacity .5s}.bt-menu li:hover em{opacity:1}.bt-menu li:hover .tl{top:100%;left:21px;margin-top:7px}.bt-menu li:hover .tr{top:100%;right:21px;left:auto;margin-top:7px}.bt-menu li:hover .r{top:50%;left:100%;margin-top:-11px;margin-left:7px}.bt-menu li:hover .br{top:auto;right:21px;bottom:100%;left:auto;margin-bottom:7px}.bt-menu li:hover .bl{top:auto;bottom:100%;left:21px;margin-bottom:7px}.bt-menu li:hover .l{top:50%;right:100%;left:auto;margin-top:-11px;margin-right:7px}@media screen and (max-height:31.125em){.bt-menu ul li a:before{font-size:32px}.bt-menu ul:first-of-type li{height:60px;line-height:60px}.bt-menu ul:nth-of-type(2) li{width:60px}}