.header{
    height: 55px;
    display: flex;
    justify-content: space-between;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background-color: white;
    border-bottom-width: 1px ;
    border-bottom-style: solid;
    border-bottom-color: rgb(245, 243, 243);
}

.left-section{
    display: flex;
    align-items: center;
}

.hamburger-menu{
    height: 24px;
    margin-left: 24px;
    margin-right: 24px;
}

.hamburger-menu:hover{
    cursor: pointer;
}

.youtube-logo{
    height: 20px;
}

.youtube-logo:hover{
    cursor: pointer;
}

.middle-section{
    flex: 1;
    margin-left: 30px;
    margin-right: 35px;
    max-width: 500px;
    display: flex;
    align-items: center;
}

.fa-light{
    height: 20px;
}

.search-bar{
    flex: 1;
    height: 36px;
    padding-left: 10px;
    font-size: 16px;
    border-width: 1px;
    border-style: solid;
    border-color: rgb(192, 192, 192);
    border-radius: 2px;
    box-shadow: inset 1px 2px 3px rgba(0, 0, 0, 0.05);
    width: 0;
}

.search-bar::placeholder{
    font-family: Roboto, Arial;
    font-size: 16px;

}

.right-section{
    width: 180px;
    margin-right: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}

.upload-icon{
    height: 30px;
    display: block;
}

.upload-icon-container, 
.notification-icon-container, 
.youtube-app-icon-container{
    position: relative; 
    display: inline-block; 
    cursor: pointer;
}

.upload-icon-container:hover .popup,
.notification-icon-container:hover .popup,
.youtube-app-icon-container:hover .popup{
    opacity: 1;
}

.popup{
    position: absolute;
    background-color: gray;
    bottom: -35px;
    color: white;
    font-size: 13px;
    font-family: roboto, Arial;
    padding: 3px 3px 3px 3px;
    border-radius: 2px;
    opacity: 0;
    transition: opacity 0.1s;
    pointer-events: none;
    white-space: nowrap;
}


.youtube-app-icon{
    height: 30px;
    cursor: pointer;
}


.notification-icon{
    height: 30px;
    cursor: pointer;
}



.notification-count{
    position: absolute;
    top: 4px;
    right: -2px;
    background-color: rgb(214, 3, 3);
    color: white;
    font-family: Robot, Arial;
    font-size: 11px;
    border-radius: 7px;
    padding-top: 1px;
    padding-left: 3px;
    padding-right: 3px;
}

.user-icon{
    height: 30px;
    border-radius: 16px;
    cursor: pointer;
}