.header{transition:transform .3s ease-in-out,.3s ease-in-out;z-index:10;box-shadow:0 4px 8px rgba(0,0,0,.1)}.header.fixed{position:fixed;top:0;left:0;width:100%;background:rgba(0,0,0,.95);box-shadow:0 4px 10px rgba(0,0,0,.3);transform:translateY(0);animation:navbar-show .4s ease-in-out}.header.bg_white.fixed{background:rgb(255,255,255)}@keyframes navbar-show{0%{transform:translateY(-100%)}to{transform:translateY(0)}}.navbar-collapse{transition:height .3s ease,opacity .3s ease;overflow:hidden}.cursor-pointer{cursor:pointer}.navbar-toggler{border:none;outline:none}.navbar-toggler:focus{box-shadow:none}.custom-toggle .navbar-toggler-icon{background-image:none;display:block;width:24px;height:2px;background-color:currentColor;position:relative}.custom-toggle .navbar-toggler-icon:after,.custom-toggle .navbar-toggler-icon:before{content:"";position:absolute;width:24px;height:2px;background-color:currentColor;left:0}.custom-toggle .navbar-toggler-icon:before{top:-8px}.custom-toggle .navbar-toggler-icon:after{top:8px}.toggle-dark .navbar-toggler-icon{color:white}.toggle-light .navbar-toggler-icon{color:black}.tippy-box{background:var(--bs-white);border:1px solid #ddd;border-radius:8px;box-shadow:0 4px 12px rgba(0,0,0,.1);padding:8px 0}.dropdown-item{padding:8px 16px;font-size:15px;color:#333;transition:background .3s;text-decoration:none;display:block}.dropdown-item:hover{background:#f5f5f5;color:#000;border-radius:5px}.loading-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.1);display:flex;align-items:center;justify-content:center;color:white;font-size:18px;z-index:9999}.spinner{width:40px;height:40px;border:4px solid transparent;border-top-color:#fff;border-radius:50%;animation:spin 1s linear infinite;margin-right:10px}@keyframes spin{to{transform:rotate(1turn)}}