.menu-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.28);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);z-index:1500;opacity:0;pointer-events:none;transition:opacity .25s ease}.menu-backdrop.active{opacity:1;pointer-events:auto}.menu-backdrop.closing{opacity:0;pointer-events:auto}body.menu-open{overflow:hidden}.navigation-menu{position:fixed;top:4rem;right:4rem;z-index:2000}.hamburger-menu{width:4rem;height:4rem;border-radius:50%;background-color:#cccccc;cursor:pointer;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;transition:background-color .3s ease,box-shadow .3s ease,border-radius .3s ease;position:relative;overflow:hidden;transform-origin:top right}.hamburger-menu:hover{background-color:#bbbbbb}.hamburger-menu.active{background-color:#f8f8f8;width:30rem;border-radius:1.2rem;box-shadow:0 1rem 3rem rgba(0,0,0,.15);padding:1.5rem 1.5rem .5rem;align-items:flex-start;animation:expandFromTopRight .3s ease forwards}.hamburger-lines{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:.4rem;transition:all .3s ease;position:absolute;top:1.2rem;left:1rem}.hamburger-menu.active .hamburger-lines{top:1.5rem;left:1.5rem}.hamburger-line{width:2rem;height:.2rem;background-color:#555555;transition:all .3s ease;border-radius:.1rem}.hamburger-menu.active .top-line{transform:rotate(45deg) translate(.5rem,.5rem)}.hamburger-menu.active .middle-line{opacity:0}.hamburger-menu.active .bottom-line{transform:rotate(-45deg) translate(.5rem,-.5rem)}.quick-access-content{display:none;opacity:0;visibility:hidden;transition:opacity .2s ease;width:100%}.hamburger-menu.active .quick-access-content{display:block;opacity:1;visibility:visible;animation:fadeInContent .2s ease .15s both}.menu-header{padding:0 0 1rem;text-align:right}.menu-header h3{margin:0;font-size:1.4rem;color:#999999;font-weight:400}.main-navigation{padding:0 0 1.5rem;display:flex;flex-direction:column;gap:1.2rem}.nav-link{display:block;color:#333333;text-decoration:none;font-size:2rem;font-weight:500;transition:color .2s ease}.nav-link:hover{color:#000000}.language-section{margin-top:1rem;padding:0 0 1.5rem;display:flex;gap:2rem}.language-option{color:#666666;font-size:1.4rem;cursor:pointer;transition:color .2s ease;font-family:Noto Sans SC,sans-serif}.language-option:hover{color:#333333}.language-option.active{color:#333333;font-weight:500}.action-section{padding:0 0 .5rem;display:flex;gap:1.5rem}.user-info{display:flex;flex-direction:row;gap:1rem;width:100%}.user-nickname{color:#333;font-size:1.4rem;font-weight:500;text-align:left;padding:.5rem;background-color:rgba(255,255,255,.1);border-radius:6px}.logout-btn.confirming{color:#dc2626;animation:pulse .5s ease-in-out}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.action-btn{background:none;border:none;color:#666666;font-size:1.4rem;cursor:pointer;transition:color .2s ease;padding:0;margin:auto}.action-btn:hover{color:#333333}.login-btn,.register-btn{font-weight:500}.menu-toggle-button{position:absolute;top:0;left:0;width:100%;height:100%;background:none;border:none;cursor:pointer;z-index:1}.hamburger-menu.active .menu-toggle-button{display:none}@keyframes expandFromTopRight{0%{width:4rem;height:4rem;border-radius:50%}60%{width:24rem;height:18rem;border-radius:1.2rem}to{width:24rem;height:27rem;border-radius:1.2rem}}@keyframes fadeInContent{0%{opacity:0;transform:translateY(-.6rem)}to{opacity:1;transform:translateY(0)}}.hamburger-menu.active .hamburger-line{background-color:#f8f8f8}.close-icon{position:absolute;top:1.2rem;left:1rem;width:2rem;height:2rem;z-index:2;background:transparent;border:none;cursor:pointer}.close-icon:after,.close-icon:before{content:"";position:absolute;top:50%;left:50%;width:2rem;height:.2rem;background-color:#333333;border-radius:.1rem;transform-origin:center}.close-icon:before{transform:translate(-50%,-50%) rotate(45deg)}.close-icon:after{transform:translate(-50%,-50%) rotate(-45deg)}.hamburger-menu.closing{animation:collapseToTopRight .3s ease forwards}.hamburger-menu.closing .quick-access-content{animation:fadeOutContent .18s ease both}@keyframes collapseToTopRight{0%{width:24rem;height:27rem;border-radius:1.2rem}40%{width:24rem;height:16rem;border-radius:1.2rem}to{width:4rem;height:4rem;border-radius:50%}}@keyframes fadeOutContent{0%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-.6rem)}}@keyframes collapseToTopRightMd{0%{width:22rem;height:28rem;border-radius:1.2rem}40%{width:22rem;height:15rem;border-radius:1.2rem}to{width:3.5rem;height:3.5rem;border-radius:50%}}@keyframes collapseToTopRightSm{0%{width:20rem;height:26rem;border-radius:1.2rem}40%{width:20rem;height:14rem;border-radius:1.2rem}to{width:3.2rem;height:3.2rem;border-radius:50%}}@media (max-width:1440px){.navigation-menu{top:2rem;right:2rem}.hamburger-menu{width:3.5rem;height:3.5rem}.hamburger-menu.active{width:22rem;padding:1.5rem 1.5rem .5rem;animation-name:expandFromTopRightMd}.hamburger-line{width:1.8rem;height:.18rem}.close-icon{top:1.1rem;left:1rem;width:1.8rem;height:1.8rem}.close-icon:after,.close-icon:before{width:1.8rem;height:.18rem}}@keyframes expandFromTopRightMd{0%{width:3.5rem;height:3.5rem;border-radius:50%}60%{width:24rem;height:16rem;border-radius:1.2rem}to{width:24rem;height:28rem;border-radius:1.2rem}}@media (max-width:768px){.navigation-menu{top:1.5rem;right:1.5rem}.hamburger-menu{width:3.2rem;height:3.2rem}.hamburger-menu.active{width:20rem;padding:1.2rem 1.2rem .3rem;animation-name:expandFromTopRightSm}.hamburger-line{width:1.6rem;height:.16rem}.menu-header{padding:0 0 1rem}.language-section,.main-navigation{padding:0 0 1.2rem}.action-section{padding:0 0 .3rem}.menu-header h3{font-size:1.3rem}.nav-link{font-size:1.4rem}.action-btn,.language-option{font-size:1.3rem}.close-icon{top:1rem;left:.9rem;width:1.6rem;height:1.6rem}.close-icon:after,.close-icon:before{width:1.6rem;height:.16rem}}@keyframes expandFromTopRightSm{0%{width:3.2rem;height:3.2rem;border-radius:50%}60%{width:24rem;height:15rem;border-radius:1.2rem}to{width:24rem;height:23rem;border-radius:1.2rem}}